From ralph.sperschneider iis.fraunhofer.de Tue May 4 12:13:33 2004 From: ralph.sperschneider iis.fraunhofer.de (Ralph Sperschneider) Date: Tue May 4 13:04:44 2004 Subject: [Mp4-tech] split the tech list? In-Reply-To: <40884475.7080405@zg.htnet.hr> References: <40884475.7080405@zg.htnet.hr> Message-ID: <40976CCD.6030404@iis.fraunhofer.de> D.Domazet wrote: > Hi all, > > Maybe it would be good to split the tech list into video and audio (mabe > systems also). For example, my interest is audio, and lately most of the > posts were video. This means that I got a bunch of (for me) useless > emails. Lets be honest: MPEG is huge and there isn't many people around > interested in all it's aspects. > > If your response to this sugestion is significant, people at mpegif > might as well fulfill our wish. So please, respond! > > Daniel > Hi Daniel, all, your request is reasonable. It?s however a question of how to deal with it. It turns out that some people don?t like the idea of a list split. It would however already help if people consequently would us meaningful subjects. To make the scope of a message even cleaner I would suggest to stating [audio] [video] [systems] etc. in front of the actual subject. BTW: I suggested the usage of clear subjects already some time ago, but have not had much success. On the other side - people should not wonder not to get appropriate response if they do not use proper subjects. But in times where some people do still not use any subject at all or meaningless onces like "help" we should not expect too much. Best regards, Ralph -- Dipl.-Ing. Ralph Sperschneider | Phone: +49 9131 776 344 Fraunhofer IIS | Fax: +49 9131 776 398 Am Wolfsmantel 33 | mailto:ralph.sperschneider@iis.fraunhofer.de D 91058 Erlangen | http://www.iis.fraunhofer.de/amm/ From smatwankar pace.stpp.soft.net Tue May 4 18:24:57 2004 From: smatwankar pace.stpp.soft.net (Swapna Matwankar) Date: Tue May 4 18:41:27 2004 Subject: [Mp4-tech] Information needed about 'pvmm' atom References: <20040409144310.92189.qmail@web25110.mail.ukl.yahoo.com> <002901c42253$6073d390$e6defea9@KingWorld> <027901c42870$622e82c0$cd64a8c0@psil> Message-ID: <013501c431d7$01cd54e0$cd64a8c0@psil> Re: [Mp4-tech] question about track headerHello, I have a doubt. I am getting a 'pvmm' atom in a 3gp file. I did not find information about this atom in the MP4 file format or ISO based media file format. Any pointers? regards, swapna -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040504/afc065f9/attachment.html From tsoligas teihal.gr Tue May 4 20:06:46 2004 From: tsoligas teihal.gr (nick) Date: Tue May 4 18:44:44 2004 Subject: [Mp4-tech] sequence Message-ID: <4097CDA6.7020607@teihal.gr> Dear all Please help me find, for my tests, the seqmented video sequence: AKIYO Best regards nick From didier.chaumond atchik.com Tue May 4 19:33:12 2004 From: didier.chaumond atchik.com (Didier Chaumond) Date: Tue May 4 18:47:40 2004 Subject: [Mp4-tech] [M4IF Technotes] 3GP to MP4 Message-ID: <4097D3D8.3060205@atchik.com> Hi all, I've found an answer on your mailing list from *Julien Boeuf* talking about streaming of 3gp files: " We have successfully streamed such files using DSS as a server and Philips player as a client. Our tool is not immediatly available to the public though... If you want more information you can contact us directly at contact resonate-mp4.com" I'm searching a way to stream 3gp video files, we have investigated Darwin Server and Quick Time player, we are working mainly on Unix like system, but files required to be "hinted". I've tried mp4creator (mpeg4ip) but even in the last packages version, 1.0, it don't know 3gp files. I've also tried MP4Box but it fails on some 3gp files and QuickTime player don't work well. I will appreciate any help. -- Best regards Didier Chaumond. Chief Engineer Atchik mailto:didier.chaumond@atchik.com http://www.atchik.com -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040504/625e8950/attachment.html From helmut.ziegler stud.tu-ilmenau.de Tue May 4 21:28:52 2004 From: helmut.ziegler stud.tu-ilmenau.de (Helmut Ziegler) Date: Wed May 5 09:54:15 2004 Subject: [Mp4-tech] split the tech list? In-Reply-To: <40976CCD.6030404@iis.fraunhofer.de> References: <40884475.7080405@zg.htnet.hr> <40976CCD.6030404@iis.fraunhofer.de> Message-ID: <4097EEF4.4070208@stud.tu-ilmenau.de> Hi, I also think that splitting of the tech-list would bring advantages. If there were the three lists [audio][video][systems] and someone wants to get all mails, she/he can subscribe to all. Others only subscribe to the list they are interested in. Maybe that could also strengthen the sense of a developer community for a certain part of the MPEG-4 Standard. So long, Helmut Ralph Sperschneider wrote: > > > D.Domazet wrote: > >> Hi all, >> >> Maybe it would be good to split the tech list into video and audio >> (mabe systems also). For example, my interest is audio, and lately >> most of the posts were video. This means that I got a bunch of (for >> me) useless emails. Lets be honest: MPEG is huge and there isn't many >> people around interested in all it's aspects. >> >> If your response to this sugestion is significant, people at mpegif >> might as well fulfill our wish. So please, respond! >> >> Daniel >> > > Hi Daniel, all, > > your request is reasonable. It?s however a question of how to deal > with it. It turns out that some people don?t like the idea of a list > split. It would however already help if people consequently would us > meaningful subjects. To make the scope of a message even cleaner I > would suggest to stating [audio] [video] [systems] etc. in front of > the actual subject. > > BTW: I suggested the usage of clear subjects already some time ago, > but have not had much success. On the other side - people should not > wonder not to get appropriate response if they do not use proper > subjects. > > But in times where some people do still not use any subject at all or > meaningless onces like "help" we should not expect too much. > > Best regards, > > Ralph From smoni nvidia.com Tue May 4 17:02:22 2004 From: smoni nvidia.com (Shankar Moni) Date: Wed May 5 09:56:48 2004 Subject: [Mp4-tech] H.264: NumBytesInNALUnit and start-code-emulation-prevention Message-ID: <40F7CC930268AF42A8EB25966623CEAA07DF310C@mail-sc-2-bk.nvidia.com> This is a question on NumBytesInNALUnit and start-code-emulation-prevention. The written spec (JVT-J050.doc) expects an argument (NumBytesInNALUnit) to be provided to the byte_stream_nal_unit( ) function. However, the reference software computes this number by looking for the next start code (0x000001). Is it possible for the bitstream to generate this sequence of bits within the residual_block_cavlc( ) function? For example, if the encoder puts - level_prefix = 15 (puts a code 0000 0000 0000 0001) - level_suffix = 512, levelSuffixLength=12 ( puts a code 0001 0000 0000 ) - level_prefix = 15 (puts a code 0000 0000 0000 0001) the last two lines could emulate a start code, unless there is a mechanism to prevent it. I'd appreciate some insight into this issue. If it has already been discussed, I'd appreciate a pointer to the discussion. Thanks, --Shankar. -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040504/c26655ce/attachment.html From f.fakhrieh ece.ut.ac.ir Wed May 5 07:52:35 2004 From: f.fakhrieh ece.ut.ac.ir (f.fakhrieh@ece.ut.ac.ir) Date: Wed May 5 09:59:52 2004 Subject: [Mp4-tech] Mpeg-j Message-ID: <1538.213.155.63.36.1083727355.squirrel@shahab.ut.ac.ir> Dear all, Can any body give me a interactive example of mpeg-j that works with IM1 and do any body has experience with IM1? From anubrata cal.interrasystems.com Wed May 5 09:50:03 2004 From: anubrata cal.interrasystems.com (Anubrata Chkarabarti) Date: Wed May 5 10:03:08 2004 Subject: [Mp4-tech] AAC bitstream - headers Message-ID: <40986B73.709E8483@cal.interrasystems.com> Hi I'm writing AAC analyzer/decoder. Here are my questions: 1. How do I get to know header of the supplied AAC file, i.e whether will it have ADIF or ADTS or no header? 2. Do I need to parse AudioSpecificConfig all the time? Does this depend on the presence of ADIF/ADTS headers? Regards Anubrata -------------- next part -------------- A non-text attachment was scrubbed... Name: anubrata.vcf Type: text/x-vcard Size: 439 bytes Desc: Card for Anubrata Chkarabarti Url : /pipermail/mp4-tech/attachments/20040505/ac23f9aa/anubrata.bin From rob.koenen mpegif.org Wed May 5 13:44:24 2004 From: rob.koenen mpegif.org (Rob Koenen (MPEGIF)) Date: Wed May 5 11:58:40 2004 Subject: [Mp4-tech] split the tech list? In-Reply-To: <4097EEF4.4070208@stud.tu-ilmenau.de> Message-ID: <003401c43296$50eb7d30$0300a8c0@corp.intertrust.com> All, Splitting sounds reasonable, and of course people want to limit the number of unnecessary mails they receive. But please also look at the potential disadvantages: - people cross-posting to mutliple lists for - questions that cross boundaries - questions where people are unsure which list is appropriate - people posting to the wrong list altogether - more admin overhead (you don't see this, but the admins certainly do. In this age of abundant spams, ALL posts are checked before they are released. The more lists, the more checking hassle.) - What about questions that do not neatly fall under audio, video or systems? Need a fourth list 'other'? Would Ralph's idea of giving the question a subject like [video] be a reasonable compromise? I'm not saying the split is a bad idea, but just suggesting to give it a little bit further thought. Thanks, Rob > -----Original Message----- > From: mp4-tech-bounces@lists.mpegif.org > [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of Helmut Ziegler > Sent: Tuesday, 4 May 2024 21:29 > To: Ralph Sperschneider > Cc: MP4-Tech List; D.Domazet > Subject: Re: [Mp4-tech] split the tech list? > > > Hi, > > I also think that splitting of the tech-list would bring advantages. > If there were the three lists [audio][video][systems] and > someone wants > to get all mails, she/he can subscribe to all. > Others only subscribe to the list they are interested in. > Maybe that could also strengthen the sense of a developer > community for > a certain part of the MPEG-4 Standard. > > So long, > Helmut > > > Ralph Sperschneider wrote: > > > > > > > D.Domazet wrote: > > > >> Hi all, > >> > >> Maybe it would be good to split the tech list into video and audio > >> (mabe systems also). For example, my interest is audio, and lately > >> most of the posts were video. This means that I got a > bunch of (for > >> me) useless emails. Lets be honest: MPEG is huge and there > isn't many > >> people around interested in all it's aspects. > >> > >> If your response to this sugestion is significant, people > at mpegif > >> might as well fulfill our wish. So please, respond! > >> > >> Daniel > >> > > > > Hi Daniel, all, > > > > your request is reasonable. It?s however a question of how to deal > > with it. It turns out that some people don?t like the idea > of a list > > split. It would however already help if people consequently > would us > > meaningful subjects. To make the scope of a message even cleaner I > > would suggest to stating [audio] [video] [systems] etc. in front of > > the actual subject. > > > > BTW: I suggested the usage of clear subjects already some time ago, > > but have not had much success. On the other side - people > should not > > wonder not to get appropriate response if they do not use proper > > subjects. > > > > But in times where some people do still not use any subject > at all or > > meaningless onces like "help" we should not expect too much. > > > > Best regards, > > > > Ralph > > > > > _______________________________________________ > Mp4-tech mailing list > Mp4-tech@lists.mpegif.org > http://lists.mpegif.org/mailman/listinfo/mp4-tech > > Note: Conduct on the mailing list is subject to the Antitrust > guidelines found at > http://www.mpegif.org/public/documents/vault/mp-out-30042-Anti trust.php From j.manikandan gdatech.co.in Wed May 5 19:24:10 2004 From: j.manikandan gdatech.co.in (D.R.J.Manigandan) Date: Thu May 6 09:35:44 2004 Subject: [Mp4-tech] H.264: NumBytesInNALUnit andstart-code-emulation-prevention References: <40F7CC930268AF42A8EB25966623CEAA07DF310C@mail-sc-2-bk.nvidia.com> Message-ID: <005b01c432a8$7215c3a0$3500a8c0@manikandan> H.264: NumBytesInNALUnit and start-code-emulation-preventionDear Mr.Shankar Moni, Please have a look on "emulation_prevention_three_byte" under section 7.4.1 in Prepublished Recommendation (05/2003). When converting from SODB to RBSP for NAL unit packetization, the following three-byte sequences are checked 0x000000, 0x000001 and 0x000002 and 0x03 is inserted after 0x0000 to avoid emulation of start code. With Regards, D.R.J.Manigandan, S.Manivel ----- Original Message ----- From: Shankar Moni To: mp4-tech@lists.mpegif.org Sent: Wednesday, May 05, 2024 5:32 AM Subject: [Mp4-tech] H.264: NumBytesInNALUnit andstart-code-emulation-prevention This is a question on NumBytesInNALUnit and start-code-emulation-prevention. The written spec (JVT-J050.doc) expects an argument (NumBytesInNALUnit) to be provided to the byte_stream_nal_unit( ) function. However, the reference software computes this number by looking for the next start code (0x000001). Is it possible for the bitstream to generate this sequence of bits within the residual_block_cavlc( ) function? For example, if the encoder puts - level_prefix = 15 (puts a code 0000 0000 0000 0001) - level_suffix = 512, levelSuffixLength=12 ( puts a code 0001 0000 0000 ) - level_prefix = 15 (puts a code 0000 0000 0000 0001) the last two lines could emulate a start code, unless there is a mechanism to prevent it. I'd appreciate some insight into this issue. If it has already been discussed, I'd appreciate a pointer to the discussion. Thanks, --Shankar. ------------------------------------------------------------------------------ _______________________________________________ Mp4-tech mailing list Mp4-tech@lists.mpegif.org http://lists.mpegif.org/mailman/listinfo/mp4-tech Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040505/f0f02c09/attachment.html From garysull windows.microsoft.com Wed May 5 10:36:30 2004 From: garysull windows.microsoft.com (Gary Sullivan) Date: Thu May 6 09:39:56 2004 Subject: [Mp4-tech] H.264: NumBytesInNALUnit andstart-code-emulation-prevention Message-ID: <91D7F2CEE3425A4A9D11311D09FCE246064AD7E5@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> Skipped content of type multipart/alternative From shawn nextreaming.com Thu May 6 16:55:00 2004 From: shawn nextreaming.com (Shawn Ambwani) Date: Thu May 6 09:42:26 2004 Subject: [Mp4-tech] FW: Sales Engineer VoIP and IP Video Message-ID: Skipped content of type multipart/alternative-------------- next part -------------- A non-text attachment was scrubbed... Name: Sales Engineer Job Description 5-04.doc Type: application/msword Size: 34304 bytes Desc: Sales Engineer Job Description 5-04.doc Url : /pipermail/mp4-tech/attachments/20040506/b4a9811a/SalesEngineerJobDescription5-04-0001.bin From tma iis.fhg.de Thu May 6 10:55:29 2004 From: tma iis.fhg.de (Herbert Thoma) Date: Thu May 6 09:47:27 2004 Subject: [Mp4-tech] split the tech list? References: <003401c43296$50eb7d30$0300a8c0@corp.intertrust.com> Message-ID: <4099FD81.BED98AF0@iis.fhg.de> Hi all, I think that there would be more disadvantages than benefits in splitting the technotes list. And the technotes list is not really a high volume list (15 mails in the last week, 3 of them about splitting the list ...). I would prefer to keep one list. Kind regards, Herbert. "Rob Koenen (MPEGIF)" schrieb: > > All, > > Splitting sounds reasonable, and of course people want to limit > the number of unnecessary mails they receive. > > But please also look at the potential disadvantages: > - people cross-posting to mutliple lists for > - questions that cross boundaries > - questions where people are unsure which list is appropriate > - people posting to the wrong list altogether > - more admin overhead (you don't see this, but the admins certainly do. > In this age of abundant spams, ALL posts are checked before they are > released. The more lists, the more checking hassle.) > - What about questions that do not neatly fall under audio, video or > systems? Need a fourth list 'other'? > > Would Ralph's idea of giving the question a subject like [video] be a > reasonable compromise? > > I'm not saying the split is a bad idea, but just suggesting to give it > a little bit further thought. > > Thanks, > Rob > > -----Original Message----- > > From: mp4-tech-bounces@lists.mpegif.org > > [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of Helmut Ziegler > > Sent: Tuesday, 4 May 2024 21:29 > > To: Ralph Sperschneider > > Cc: MP4-Tech List; D.Domazet > > Subject: Re: [Mp4-tech] split the tech list? > > > > > > Hi, > > > > I also think that splitting of the tech-list would bring advantages. > > If there were the three lists [audio][video][systems] and > > someone wants > > to get all mails, she/he can subscribe to all. > > Others only subscribe to the list they are interested in. > > Maybe that could also strengthen the sense of a developer > > community for > > a certain part of the MPEG-4 Standard. > > > > So long, > > Helmut > > > > > > Ralph Sperschneider wrote: > > > > > > > > > > > D.Domazet wrote: > > > > > >> Hi all, > > >> > > >> Maybe it would be good to split the tech list into video and audio > > >> (mabe systems also). For example, my interest is audio, and lately > > >> most of the posts were video. This means that I got a > > bunch of (for > > >> me) useless emails. Lets be honest: MPEG is huge and there > > isn't many > > >> people around interested in all it's aspects. > > >> > > >> If your response to this sugestion is significant, people > > at mpegif > > >> might as well fulfill our wish. So please, respond! > > >> > > >> Daniel > > >> > > > > > > Hi Daniel, all, > > > > > > your request is reasonable. It?s however a question of how to deal > > > with it. It turns out that some people don?t like the idea > > of a list > > > split. It would however already help if people consequently > > would us > > > meaningful subjects. To make the scope of a message even cleaner I > > > would suggest to stating [audio] [video] [systems] etc. in front of > > > the actual subject. > > > > > > BTW: I suggested the usage of clear subjects already some time ago, > > > but have not had much success. On the other side - people > > should not > > > wonder not to get appropriate response if they do not use proper > > > subjects. > > > > > > But in times where some people do still not use any subject > > at all or > > > meaningless onces like "help" we should not expect too much. > > > > > > Best regards, > > > > > > Ralph > > > > > > > > > > _______________________________________________ > > Mp4-tech mailing list > > Mp4-tech@lists.mpegif.org > > http://lists.mpegif.org/mailman/listinfo/mp4-tech > > > > Note: Conduct on the mailing list is subject to the Antitrust > > guidelines found at > > http://www.mpegif.org/public/documents/vault/mp-out-30042-Anti > trust.php > > _______________________________________________ > Mp4-tech mailing list > Mp4-tech@lists.mpegif.org > http://lists.mpegif.org/mailman/listinfo/mp4-tech > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -- Herbert Thoma Group Manager Video Multimedia Realtime Systems Department Fraunhofer IIS Am Wolfsmantel 33, 91058 Erlangen, Germany Phone: +49-9131-776-323 Fax: +49-9131-776-399 email: tma@iis.fhg.de www: http://www.iis.fhg.de/ From rob.koenen mpegif.org Thu May 6 12:01:15 2004 From: rob.koenen mpegif.org (Rob Koenen (MPEGIF)) Date: Thu May 6 10:13:47 2004 Subject: [Mp4-tech] [general] split the tech list? Message-ID: <001501c43351$12972780$0300a8c0@corp.intertrust.com> Having heard all the opinions, and acting only a bit selfishly as a part-time admin, I conclude that we should not split the MP4-tech list, even though it would have had its advantages. But do note the new header above. Best, Rob From Simon.Denman elixent.com Thu May 6 10:02:07 2004 From: Simon.Denman elixent.com (Simon Denman) Date: Thu May 6 19:55:23 2004 Subject: [Mp4-tech] Effect of sub-pel motion estimation on bit rate Message-ID: Can anyone point me at any resources documenting the effect of varying motion resolution (integer-pel, half-pel and quarter-pel) on bit rate? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Simon Denman Elixent Ltd, Castlemead, Lower Castle Street, Bristol, BS1 3AG Tel: 0117 917 5756 Email: simon.denman@elixent.com -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040506/773e991c/attachment.html From ljzm yahoo.com Thu May 6 17:39:36 2004 From: ljzm yahoo.com (j) Date: Fri May 7 19:13:37 2004 Subject: [Mp4-tech] where to get the sbrConfTool ? Message-ID: <20040506233936.55037.qmail@web11805.mail.yahoo.com> Hi, dear experts, where to get the scrConfTool mentioned in N6468 MPEG-4 SBR conformance test documents? Thanks. -j __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover From i.g.richardson rgu.ac.uk Fri May 7 10:48:40 2004 From: i.g.richardson rgu.ac.uk (i.g.richardson@rgu.ac.uk) Date: Fri May 7 19:18:35 2004 Subject: [video] RE: [Mp4-tech] Effect of sub-pel motion estimation on bit rate Message-ID: <80A9EC5F99C0744896728B5579E36D364E46A5@EXVS001.rgu.ac.uk> Dear all I sent the following reply to Simon with a graph attachment - rather than send it to the entire list, if you would like to see the graph please email me and I'll send it to you- ------ Attached is an example of rate-distortion results for H.264 encoding of the "foreman" test sequence, a reasonably high-activity video clip. I encoded the clip at a range of quantization parameters. There are two curves on the graph: encoding parameters for both are identical except that quarter-pel motion compensation is enabled for the red curve (the default for H.264) and only half-pel compensation is enabled for the blue curve. You will see that quarter-pel gives a significant benefit at all bitrates. It is worth mentioning that good half- and quarter-pel performance depends on the choice of filter to carry out sub-pel interpolation. In H.264/AVC, a 6-tap filter is used in each direction for half-pel interpolation; quarter-pel samples are produced by a further linear interpolation step. ------- Iain Richardson The Robert Gordon University UK -----Original Message----- From: mp4-tech-bounces@lists.mpegif.org [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of Simon Denman Sent: 06 May 2024 15:02 To: mp4-tech@lists.mpegif.org Subject: [Mp4-tech] Effect of sub-pel motion estimation on bit rate Can anyone point me at any resources documenting the effect of varying motion resolution (integer-pel, half-pel and quarter-pel) on bit rate? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Simon Denman Elixent Ltd, Castlemead, Lower Castle Street, Bristol, BS1 3AG Tel: 0117 917 5756 Email: simon.denman@elixent.com --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.676 / Virus Database: 438 - Release Date: 03/05/2024 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.676 / Virus Database: 438 - Release Date: 03/05/2024 -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040507/45dea08a/attachment.html From ljzm yahoo.com Fri May 7 14:48:35 2004 From: ljzm yahoo.com (j) Date: Fri May 7 19:21:58 2004 Subject: [Mp4-tech] where to get sbrConfTool for SBR conformance test? Message-ID: <20040507204835.97774.qmail@web11804.mail.yahoo.com> In N6468 MPEG4 14496-4:2001/FPDAM8 -- conformance sequences for Bandwidth extension, it mentioned a sbrConfTool , can somebody tell me where to get it? Thanks. -lj __________________________________ Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs http://hotjobs.sweepstakes.yahoo.com/careermakeover From raaja47 yahoo.com Sat May 8 16:50:13 2004 From: raaja47 yahoo.com (=?iso-8859-1?q?Gulistan=20Raja?=) Date: Sun May 9 11:44:21 2004 Subject: [Mp4-tech] [Video] mpeg2 encoding Message-ID: <20040508145013.94020.qmail@web11405.mail.yahoo.com> Hi I am encoding yuv sequences using mepeg2 reference software . I have a problem regarding encoding the whole sequence of 200 frames. When I encode using separate yuv frames files, it works OK. But when I give encoder, the whole yuv sequence file of 200 frames as an input , it gives error. Could any one please let me know, what is happening. Thanking you in advance Gulistan Raja ________________________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html From akamar essex.ac.uk Sat May 8 18:16:42 2004 From: akamar essex.ac.uk (Kamaruddin, Azlina) Date: Sun May 9 11:48:26 2004 Subject: [Mp4-tech] RTP and JM8.1 Message-ID: <149DEAD6B76CD5119C9A009027D6396B04D4B4EF@sernt28.essex.ac.uk> Hi, How can I process an RTP packet dump file before feeding it into the JM8.1 decoder? I want to remove packets in the dump file. Thanks. NiNa From swhong csis.hku.hk Mon May 10 12:50:16 2004 From: swhong csis.hku.hk (Philip Hong) Date: Mon May 10 04:29:28 2004 Subject: [Mp4-tech] Is it possible to attach uncompressed wave audio data to MP4 ? Message-ID: <409EFBF8.4000806@csis.hku.hk> Per the captioned question, If it is possible, please advise me with the details/URLs. It would be the best if you can email me some mp4 sample files constructed with uncompressed wave data. Thanks in advance. -- Philip From dattaguru.b.n celstream.com Mon May 10 12:14:49 2004 From: dattaguru.b.n celstream.com (Dattaguru B.N) Date: Mon May 10 04:34:35 2004 Subject: [Mp4-tech] how to use adif2mp4 tool for SBR??? Message-ID: <80464F9A4D2BF042A154DD067F1F539322EABA@CEL-BANGT-M01> Hi, I am working on SBR Decoder. For which, I want to generate some of the SBR (HEAAC) mp4 bitstreams. Can anybody, let me know 1. the procedure for encoding the bit stream using ISO SBR encoder. 2. the procedure for converting the raw bit stream generated using encoder to mp4 format (HE-AAC). Rgds Datta This message is free from Virus - IMSS -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040510/8f07815a/attachment.html From i.g.richardson rgu.ac.uk Mon May 10 10:03:30 2004 From: i.g.richardson rgu.ac.uk (i.g.richardson@rgu.ac.uk) Date: Mon May 10 04:38:31 2004 Subject: FW: [video] RE: [Mp4-tech] Effect of sub-pel motion estimation on bit rate Message-ID: <80A9EC5F99C0744896728B5579E36D364E46BB@EXVS001.rgu.ac.uk> Skipped content of type multipart/alternative-------------- next part -------------- A non-text attachment was scrubbed... Name: h264_q_h_pel_comparison.pdf Type: application/octet-stream Size: 54386 bytes Desc: h264_q_h_pel_comparison.pdf Url : /pipermail/mp4-tech/attachments/20040510/6f33a81b/h264_q_h_pel_comparison-0001.exe From i.g.richardson rgu.ac.uk Mon May 10 16:17:59 2004 From: i.g.richardson rgu.ac.uk (i.g.richardson@rgu.ac.uk) Date: Mon May 10 12:19:23 2004 Subject: [Mp4-tech] Sub-pel motion estimation again Message-ID: <80A9EC5F99C0744896728B5579E36D364E46CC@EXVS001.rgu.ac.uk> The following paper by Thomas Wedi gives a good insight into the potential benefits of sub-pel motion compensation (and the effect of different interpolation filters): HYPERLINK "http://www.tnt.uni-hannover.de/~wedi/papers-html/EI01-TW.html"http://www.tnt.uni-hannover.de/~wedi/papers-html/EI01-TW.html (Thanks to Alexis Tourapis for the suggested link). Regards Iain Richardson --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.676 / Virus Database: 438 - Release Date: 03/05/2024 -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040510/1785620f/attachment.html From ralph.sperschneider iis.fraunhofer.de Mon May 10 20:29:13 2004 From: ralph.sperschneider iis.fraunhofer.de (Ralph Sperschneider) Date: Mon May 10 17:23:44 2004 Subject: [Mp4-tech] Re: [audio] AAC bitstream - headers In-Reply-To: <40986B73.709E8483@cal.interrasystems.com> References: <40986B73.709E8483@cal.interrasystems.com> Message-ID: <409FBBE9.2050308@iis.fraunhofer.de> Anubrata Chkarabarti wrote: > Hi > I'm writing AAC analyzer/decoder. Here are my questions: > 1. How do I get to know header of the supplied AAC file, i.e whether > will it have ADIF or ADTS or no header? > 2. Do I need to parse AudioSpecificConfig all the time? Does this depend > on the presence of ADIF/ADTS headers? > > Regards > Anubrata > > _______________________________________________ > Mp4-tech mailing list > Mp4-tech@lists.mpegif.org > http://lists.mpegif.org/mailman/listinfo/mp4-tech > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php Dear Anubrata, if you get header-less AAC data you cannot do much with it unless you know at least the sampling rate. To check for ADIF you can look for the adif_id at the begin of the file. To check for ADTS you can try to synchronize (using the syncword and some subsequent information). In all cases mentioned above there is no AudioSpecificConfig, since those are MPEG-2 centric. An AudioSpecificConfig shows only up in MPEG-4 centric cases, e.g. while using latm or the mp4 file format. Best regards, Ralph -- Dipl.-Ing. Ralph Sperschneider | Phone: +49 9131 776 344 Fraunhofer IIS | Fax: +49 9131 776 398 Am Wolfsmantel 33 | mailto:ralph.sperschneider@iis.fraunhofer.de D 91058 Erlangen | http://www.iis.fraunhofer.de/amm/ From ralph.sperschneider iis.fraunhofer.de Mon May 10 20:37:38 2004 From: ralph.sperschneider iis.fraunhofer.de (Ralph Sperschneider) Date: Mon May 10 17:26:14 2004 Subject: [Mp4-tech] Re: [audio] Is it possible to attach uncompressed wave audio data to MP4 ? In-Reply-To: <409EFBF8.4000806@csis.hku.hk> References: <409EFBF8.4000806@csis.hku.hk> Message-ID: <409FBDE2.3080508@iis.fraunhofer.de> Philip Hong wrote: > Per the captioned question, If it is possible, please advise me with the > details/URLs. It would be the best if you can email me some mp4 sample > files constructed with uncompressed wave data. > > Thanks in advance. > > -- Philip > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php As far as I know, this is only possible using the AudioObjectType 0. This is however not fully specified and not used in any profile since it was assumed to be used for testing only. I also thought about a more detailed specification but having the noisless audio coding efforts in mind I wonder whether this is still of interest. Best regards, Ralph -- Dipl.-Ing. Ralph Sperschneider | Phone: +49 9131 776 344 Fraunhofer IIS | Fax: +49 9131 776 398 Am Wolfsmantel 33 | mailto:ralph.sperschneider@iis.fraunhofer.de D 91058 Erlangen | http://www.iis.fraunhofer.de/amm/ From dsearles mmc.atmel.com Mon May 10 14:59:01 2004 From: dsearles mmc.atmel.com (Dan Searles) Date: Mon May 10 17:28:36 2004 Subject: [Mp4-tech] [Video] Conformance test stream asserts Message-ID: <409FC2E5.6060208@mmc.atmel.com> Regarding the Microsoft version 2.5 reference code mentioned earlier... Conformance streams nec008, san021/22/23/24 generate the following: Assertion failed: vctDecode.x+iMBX*32>=0 && vctDecode.x+iMBX*32<=(m_iNumMBX-1)*3 2, file c:\mpeg4\ms_v25\sys\decoder\mvdec.cpp, line 164 (or line 165) Is this just a matter of using obsolete conformance streams, or is something else going on? Is there a document or something anywhere that would indicate current status of conformance streams? Thanks -- Dan Searles From Wesley.DeNeve ugent.be Mon May 10 23:04:56 2004 From: Wesley.DeNeve ugent.be (Wesley De Neve) Date: Mon May 10 17:31:00 2004 Subject: [Mp4-tech] Is it possible to attach uncompressed wave audio data toMP4 ? References: <409EFBF8.4000806@csis.hku.hk> Message-ID: <011a01c436ca$11174d50$9a9bf051@dune> Hi Philip, all, Philip Hong wrote: > Per the captioned question, If it is possible, please advise me with the > details/URLs. It would be the best if you can email me some mp4 sample > files constructed with uncompressed wave data. This pointer can perhaps push you a bit in the right direction: http://lists.mpegif.org/pipermail/mp4-tech/2004-January/003167.html We are currently not aware of a player that does support such a construction, despite some interest for it. Kind regards, -Wesley -- Ghent University ELIS / Multimedia Lab From garysull windows.microsoft.com Mon May 10 15:28:18 2004 From: garysull windows.microsoft.com (Gary Sullivan) Date: Tue May 11 07:26:38 2004 Subject: [video] RE: [Mp4-tech] Effect of sub-pel motion estimation on bitrate Message-ID: <91D7F2CEE3425A4A9D11311D09FCE246064AD819@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> Skipped content of type multipart/alternative From jean-claude.dufourd enst.fr Tue May 11 01:14:33 2004 From: jean-claude.dufourd enst.fr (Jean-Claude Dufourd) Date: Tue May 11 07:28:52 2004 Subject: [Mp4-tech] Is it possible to attach uncompressed wave audio data to MP4 ? In-Reply-To: <409EFBF8.4000806@csis.hku.hk> References: <409EFBF8.4000806@csis.hku.hk> Message-ID: <409FFEC9.3000608@enst.fr> Philip Hong wrote: >Per the captioned question, If it is possible, please advise me with the >details/URLs. It would be the best if you can email me some mp4 sample >files constructed with uncompressed wave data. > > Just cut your wav in packets of any length (but do not cut across a sample), and these packets you can treat as access units, using the sample time of the first sample as decoding time stamp. It is probably easier if you have packets of uniform length, but that is not necessary. You will need to pick an user-definable object type indication. That's it for packaging in MP4. Now, to play it in an MP4 Systems environment, I think it is trivial to add a null decoder to Osmo4/GPAC (gpac.sourceforge.net). It may even be already implemented. Best regards JC From toshi.horie conexant.com Mon May 10 16:50:12 2004 From: toshi.horie conexant.com (toshi.horie@conexant.com) Date: Tue May 11 07:31:11 2004 Subject: [Mp4-tech] [Video] Conformance test stream asserts Message-ID: Dan, All of the conformance bitstreams you mentioned are obsolete because they have problems. They have unrestricted motion vectors even though 14496-2, section 7.6.4 says "Motion vectors are allowed to point outside the decoded area of a reference VOP when (and only when) the short video header format is not in use (i.e., when short_video_header is 0)." The problem is documented in N6185_VP11.doc "MPEG-4 Visual: List of Problems Reported, v.11." The corresponding Excel spreadsheet reports the status of all the MPEG-4 visual conformance bitstreams. Regards, Toshi Horie Conexant Systems "Dan Searles" Sent by: mp4-tech-bounces@lists.mpegif.org 05/10/2023 10:59 AM To: mp4-tech@lists.mpegif.org cc: Subject: [Mp4-tech] [Video] Conformance test stream asserts Regarding the Microsoft version 2.5 reference code mentioned earlier... Conformance streams nec008, san021/22/23/24 generate the following: Assertion failed: vctDecode.x+iMBX*32>=0 && vctDecode.x+iMBX*32<=(m_iNumMBX-1)*3 2, file c:\mpeg4\ms_v25\sys\decoder\mvdec.cpp, line 164 (or line 165) Is this just a matter of using obsolete conformance streams, or is something else going on? Is there a document or something anywhere that would indicate current status of conformance streams? Thanks -- Dan Searles _______________________________________________ NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php ==================== 05/10/2023 03:56:49 PM MailFilter-2 ==================== This email may contain confidential and privileged material for the sole use of the intended recipient. Any unauthorized review, use or distribution by others is strictly prohibited. If you have received the message in error, please advise the sender by reply email and delete the message. Thank you. -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040510/09c27fca/attachment.html From dattaguru.b.n celstream.com Tue May 11 10:24:38 2004 From: dattaguru.b.n celstream.com (Dattaguru B.N) Date: Tue May 11 07:34:58 2004 Subject: [Mp4-tech] Is it possible to attach uncompressed wave audio d ata toMP4 ? Message-ID: <80464F9A4D2BF042A154DD067F1F539322EABF@CEL-BANGT-M01> Dear All, I want to know, what would be the advantage of attaching an uncompressed (wav) data into a compressed (mp4) data? Thanks in advance, Datta -----Original Message----- From: Wesley De Neve [mailto:Wesley.DeNeve@ugent.be] Sent: Tuesday, May 11, 2024 1:35 AM To: mp4-tech@lists.mpegif.org; Philip Hong Subject: Re: [Mp4-tech] Is it possible to attach uncompressed wave audio data toMP4 ? Hi Philip, all, Philip Hong wrote: > Per the captioned question, If it is possible, please advise me with the > details/URLs. It would be the best if you can email me some mp4 sample > files constructed with uncompressed wave data. This pointer can perhaps push you a bit in the right direction: http://lists.mpegif.org/pipermail/mp4-tech/2004-January/003167.html We are currently not aware of a player that does support such a construction, despite some interest for it. Kind regards, -Wesley -- Ghent University ELIS / Multimedia Lab _______________________________________________ NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php This message is free from Virus - IMSS -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040511/cbde00a2/attachment.html From swhong csis.hku.hk Tue May 11 13:21:09 2004 From: swhong csis.hku.hk (Philip Hong) Date: Tue May 11 07:37:11 2004 Subject: [Mp4-tech] Is it possible to attach uncompressed wave audio data toMP4 ? In-Reply-To: <80464F9A4D2BF042A154DD067F1F539322EABF@CEL-BANGT-M01> References: <80464F9A4D2BF042A154DD067F1F539322EABF@CEL-BANGT-M01> Message-ID: <40A054B5.1080105@csis.hku.hk> Dear Dattaguru, My project needs a CHEAP and FAST solution for getting/capturing audio data. So, I think of using uncompressed (wav) data that readily be captured by ordinary sound card. Do you have any opinions of using uncompressed audio data ? Please don't hesitate to advise me. Thanks for your question. Philip Dattaguru B.N wrote: > Dear All, > > I want to know, what would be the advantage of attaching > an uncompressed (wav) data into a compressed (mp4) data? > > Thanks in advance, > Datta > > -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040511/ae64fc02/attachment.html From i.g.richardson rgu.ac.uk Tue May 11 09:51:08 2004 From: i.g.richardson rgu.ac.uk (i.g.richardson@rgu.ac.uk) Date: Tue May 11 07:39:33 2004 Subject: [video] RE: [Mp4-tech] Effect of sub-pel motion estimation on bitrate Message-ID: <80A9EC5F99C0744896728B5579E36D364E46D0@EXVS001.rgu.ac.uk> Hello Gary No, so the half-pel result is sub-optimal.. however the gain for 1/4-pel over 1/2-pel is quite similar to Wedi + Mussman's reported results (around 1.5dB at medium bitrates) (HYPERLINK "http://www.tnt.uni-hannover.de/~wedi/papers-html/EI01-TW.html"http://www.tnt.uni-hannover.de/~wedi/papers-html/EI01-TW.html ; HYPERLINK "ftp://ftp.tnt.uni-hannover.de/pub/papers/2003/TCSVT03-TWHGM.pdf"ftp://ftp.tnt.uni-hannover.de/pub/papers/2003/TCSVT03-TWHGM.pdf) Cheers Iain -----Original Message----- From: Gary Sullivan [mailto:garysull@windows.microsoft.com] Sent: 10 May 2024 22:28 To: Iain Richardson (ensigr); mp4-tech@lists.mpegif.org Subject: RE: [video] RE: [Mp4-tech] Effect of sub-pel motion estimation on bitrate When you modified the encoder to avoid choosing non-quarter-pel positions, did you also modify the entropy coding so that it did not waste bits on the possibility that the never-chosen quarter-pel values could be selected? Best Regards, Gary Sullivan -----Original Message----- From: mp4-tech-bounces@lists.mpegif.org [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of i.g.richardson@rgu.ac.uk Sent: Monday, May 10, 2024 1:04 AM To: mp4-tech@lists.mpegif.org Subject: FW: [video] RE: [Mp4-tech] Effect of sub-pel motion estimation on bitrate Dear all I received quite a few requests for the graph so it seems worthwhile to send it to the list.... Attached is an example of rate-distortion results for H.264 encoding of the "foreman" test sequence, a reasonably high-activity video clip. I encoded the clip at a range of quantization parameters. There are two curves on the graph: encoding parameters for both are identical except that quarter-pel motion compensation is enabled for the red curve (the default for H.264) and only half-pel compensation is enabled for the blue curve. You will see that quarter-pel gives a significant benefit at all bitrates. I used version 6.1e of the JM reference software (I produced the results last year), modifying the software to prevent it choosing quarter-pixel vectors to generate the results on the blue curve. Iain Richardson The Robert Gordon University UK -----Original Message----- From: mp4-tech-bounces@lists.mpegif.org [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of Simon Denman Sent: 06 May 2024 15:02 To: mp4-tech@lists.mpegif.org Subject: [Mp4-tech] Effect of sub-pel motion estimation on bit rate Can anyone point me at any resources documenting the effect of varying motion resolution (integer-pel, half-pel and quarter-pel) on bit rate? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Simon Denman Elixent Ltd, Castlemead, Lower Castle Street, Bristol, BS1 3AG Tel: 0117 917 5756 Email: simon.denman@elixent.com --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.676 / Virus Database: 438 - Release Date: 03/05/2024 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.676 / Virus Database: 438 - Release Date: 03/05/2024 --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.676 / Virus Database: 438 - Release Date: 03/05/2024 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.676 / Virus Database: 438 - Release Date: 03/05/2024 --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.676 / Virus Database: 438 - Release Date: 03/05/2024 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.676 / Virus Database: 438 - Release Date: 03/05/2024 -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040511/d1f5bc04/attachment-0001.html From Wesley.DeNeve ugent.be Tue May 11 11:58:24 2004 From: Wesley.DeNeve ugent.be (Wesley De Neve) Date: Tue May 11 07:42:58 2004 Subject: [Mp4-tech] Is it possible to attach uncompressed wave audio data toMP4 ? References: <80464F9A4D2BF042A154DD067F1F539322EABF@CEL-BANGT-M01> Message-ID: <003101c43736$1e608460$bacdc19d@Poulenc> Hi, Dattaguru B.N wrote: > Dear All, > > I want to know, what would be the advantage of attaching > an uncompressed (wav) data into a compressed (mp4) data? The use case I am talking about is a solution in which uncompressed CD-quality audio is sent into a controlled network, together with compressed video (MPEG-4 Visual). Both data streams are the result of live capturing. Being able to store the streams in question at the terminal of the clients in the MP4 file format would have been very nice (no need to integrate an audio codec in an already existing system, no licensing issues w.r.t. the audio, ...). Since the MP4 file format is a generic media container, the latter shouldn't be a big problem. And it isn't, because you always have a fallback to a proprietary track or the user data section. The only problem is when you want to do it in an interoperable way. I can also imagine some interest from an editing point of view (AFAIK the MP4 file format is supposed to be more than a publishing format). Best regards, -Wesley From mathijn sceneware.nl Tue May 11 14:14:39 2004 From: mathijn sceneware.nl (Mathijn Elhorst) Date: Tue May 11 08:19:58 2004 Subject: [Mp4-tech] [systems] xmt-a issue Message-ID: <40A0B59F.7050807@sceneware.nl> I'm finishing an xmt-a exporter but I've one open end regarding the correct output of SFString and MFString. In ibmbatch and in the xmt-a stylesheet a string value is exported quoted as: MP4Box does it like: and thus produces xmt-a that doesn't verify with the stylesheet. I tend to believe and follow documents from iso and thus opt for the first variant. But since it is all counter-intuitive (how is a quote that's part of the string coded) I better ask around... It also gives me a change to ask if somebody perhaps has a stylesheet which contains the level 5 and 6 nodes as well, like XLineProperties, Quadric etc. Thanks. Mathijn -- Mathijn Elhorst mailto:mathijn@sceneware.nl www.sceneware.nl From snd codingtechnologies.com Tue May 11 20:02:25 2004 From: snd codingtechnologies.com (Andreas Schneider) Date: Tue May 11 17:24:17 2004 Subject: [Mp4-tech] [audio] how to use adif2mp4 tool for SBR??? In-Reply-To: <80464F9A4D2BF042A154DD067F1F539322EABA@CEL-BANGT-M01> References: <80464F9A4D2BF042A154DD067F1F539322EABA@CEL-BANGT-M01> Message-ID: <40A10721.5080706@codingtechnologies.com> Hello Datta, The iso encoder requires the commandline option -sbr to produce an SBR-enabled stream. Sample commandline: "enc -r 48000 -c "-lc" -o blafasl -sbr input.wav" To convert this to an mp4-file, you must tell the converter the sampling rate of the aac-part of the bitstream, which is half the sampling rate of the original input file. Sample cmdline: "adif2mp4 -s 22050 -b 48000 -bi 48000 -p LC -o mp4 -k 1 -q 0 blafasl.aac blafasl.mp4" if input.wav had 44100 sampling rate. Regards, Andreas Dattaguru B.N wrote: > Hi, > > I am working on SBR Decoder. For which, I want to generate some of the > SBR (HEAAC) mp4 bitstreams. Can anybody, let me know > 1. the procedure for encoding the bit stream using ISO SBR encoder. > 2. the procedure for converting the raw bit stream generated using encoder > to mp4 format (HE-AAC). > > Rgds > Datta > > This message is free from Virus - IMSS > > > ------------------------------------------------------------------------ > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -- _______________________________________________________________________ Andreas Schneider | Research Engineer | Coding Technologies | phone: +49 (0) 911 92891 -26 | Deutschherrnstr. 15-19 fax: +49 (0) 911 92891 -99 | 90429 Nuernberg, Germany mailto:snd@CodingTechnologies.com | http://www.CodingTechnologies.com From dattaguru.b.n celstream.com Wed May 12 12:19:14 2004 From: dattaguru.b.n celstream.com (Dattaguru B.N) Date: Wed May 12 04:34:34 2004 Subject: [Mp4-tech] [audio]Encoding with Error resilence (ERAACLC) Message-ID: <80464F9A4D2BF042A154DD067F1F539322EACA@CEL-BANGT-M01> Hi all, Can anybody help me in Encoding a wav file in ER AAC LC profile. I have set up encoder for generating AAC LC profile bitstreams. How can I change the same for generating ER enabled AAC LC bitstreams Thanks and regards, #~~~~~~~~~~~~~~~~~~~~~~~~~~~~@@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~# "There is tremendous happiness in making others happy, despite our own situations" DATTAGURU B.N. VASISTA CELSTREAM Technologies Pvt. Ltd., Prestige Blue Chip Software Park, Block-II, 9, Hosur Road, Bangalore - 29 dattaguru.b.n@celstream.com Phone : 91 80 51191919 - Extn : 4166 Fax : 91 80 51191900 #~~~~~~~~~~~~~~~~~~~~~~~~~~~~@@~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~# This message is free from Virus - IMSS -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040512/f347ba35/attachment.html From nitgupta hss.hns.com Wed May 12 12:48:47 2004 From: nitgupta hss.hns.com (nitgupta@hss.hns.com) Date: Wed May 12 04:39:18 2004 Subject: [Mp4-tech] [Video] m4v to mp4 converter Message-ID: Hi all, I want to convert the MPEG4 video conformance streams (*.m4v) to .mp4 format. Can anyone help me by sending a pointer to such a utility. Thanx, Nitin. From i.g.richardson rgu.ac.uk Wed May 12 12:38:47 2004 From: i.g.richardson rgu.ac.uk (Iain Richardson) Date: Wed May 12 06:53:11 2004 Subject: [Mp4-tech] [video] Companies with working H.264/AVC solutions ? Message-ID: <003001c4380d$4f4ca590$b51cfea9@Gustav> I know this is not strictly a "tech" question - sorry - but I think this list will reach the right people.. I'm updating my list of companies who offer H.264/AVC solutions. Here's what I have at present: BT Exact DemoGraFX Envivio Equator MainConcept Moonlight Polycom Sand Video UBVideo Vanguard Software Solutions VideoLocus W&W Communications (and DSP Research) If your company has a working (!) H.264-compatible solution and you're not on the list, please could you email me with brief details and I will add you to the list. I intend to publish the list on the vcodex site and include it in a forthcoming guide to H.264/AVC. Many thanks Iain Richardson i.g.richardson@rgu.ac.uk iainrichardson@ieee.org (preferred email for replies) HYPERLINK "www.vcodex.com"www.vcodex.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.673 / Virus Database: 435 - Release Date: 01/05/2024 -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040512/472f05fa/attachment.html From rob.koenen mpegif.org Wed May 12 14:46:50 2004 From: rob.koenen mpegif.org (Rob Koenen (MPEGIF)) Date: Wed May 12 15:29:34 2004 Subject: [Mp4-tech] [video] Companies with working H.264/AVC solutions ? In-Reply-To: <003001c4380d$4f4ca590$b51cfea9@Gustav> Message-ID: <003901c43816$d060fe70$0300a8c0@corp.intertrust.com> > I know this is not strictly a "tech" question - sorry - but > I think this list will reach the right people.. This is the right list to ask these questions ... if you are willing to share the results with us too :-) Rob -----Original Message----- From: mp4-tech-bounces@lists.mpegif.org [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of Iain Richardson Sent: Wednesday, 12 May 2024 12:39 To: mp4-tech@lists.mpegif.org Subject: [Mp4-tech] [video] Companies with working H.264/AVC solutions ? I know this is not strictly a "tech" question - sorry - but I think this list will reach the right people.. I'm updating my list of companies who offer H.264/AVC solutions. Here's what I have at present: BT Exact DemoGraFX Envivio Equator MainConcept Moonlight Polycom Sand Video UBVideo Vanguard Software Solutions VideoLocus W&W Communications (and DSP Research) If your company has a working (!) H.264-compatible solution and you're not on the list, please could you email me with brief details and I will add you to the list. I intend to publish the list on the vcodex site and include it in a forthcoming guide to H.264/AVC. Many thanks Iain Richardson i.g.richardson@rgu.ac.uk iainrichardson@ieee.org (preferred email for replies) HYPERLINK "www.vcodex.com"www.vcodex.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.673 / Virus Database: 435 - Release Date: 01/05/2024 From ralph.sperschneider iis.fraunhofer.de Wed May 12 15:21:57 2004 From: ralph.sperschneider iis.fraunhofer.de (Ralph Sperschneider) Date: Wed May 12 15:34:07 2004 Subject: [Mp4-tech] Re: [audio] AAC bitstream - headers In-Reply-To: <40A1D9DB.ACC0C516@cal.interrasystems.com> References: <40986B73.709E8483@cal.interrasystems.com> <409FBBE9.2050308@iis.fraunhofer.de> <40A1D9DB.ACC0C516@cal.interrasystems.com> Message-ID: <40A216E5.3020207@iis.fraunhofer.de> Anubrata Chakarabarti wrote: > Hello Ralph > > Could you pl clarify the following when you have time: > > 1. What is meant by levels within a profile and how do they affect the decoding process? Levels specify the complexity of the decoding process. This might be due to the number of channels, due to the sampling frequency, due to the number of objects, due to the permitted amount of FEC etc. > 2. If CRC check is present in ADTS frame then what measures will have to be taken at the decoder side? You don?t need to do anything but just skipt the crc word. If you wonna make sure that the received data is integer, you can derive the crc on decoder side and compare it with the transmitted crc word. > 3. Can I safely assume that 1 Raw data block = 1 AU? Usually yes. Exceptions are related to epConfig=1. > If yes then what should be the treatment for Data Stram Elemnts and/or Fill elements (from the perspective of an analyzer - do > they have any significance?) My question is based on the basic AU definition that all values in an AU are associated with time data. Data transmitted in the extension payload (I guess you talk about those data) might be of different kind. It might be directly related to the transmitted audio data (e.g. SBR, DRC) or just cover any kind of not specifically defined ancillary data. Best regards, Ralph -- Dipl.-Ing. Ralph Sperschneider | Phone: +49 9131 776 344 Fraunhofer IIS | Fax: +49 9131 776 398 Am Wolfsmantel 33 | mailto:ralph.sperschneider@iis.fraunhofer.de D 91058 Erlangen | http://www.iis.fraunhofer.de/amm/ From ralph.sperschneider iis.fraunhofer.de Wed May 12 15:26:11 2004 From: ralph.sperschneider iis.fraunhofer.de (Ralph Sperschneider) Date: Wed May 12 15:38:04 2004 Subject: [Mp4-tech] Re: [audio] Encoding with Error resilence (ERAACLC) In-Reply-To: <80464F9A4D2BF042A154DD067F1F539322EACA@CEL-BANGT-M01> References: <80464F9A4D2BF042A154DD067F1F539322EACA@CEL-BANGT-M01> Message-ID: <40A217E3.8010204@iis.fraunhofer.de> Dattaguru B.N wrote: > Hi all, > > Can anybody help me in > > Encoding a wav file in ER AAC LC profile. I have set up encoder for > generating AAC LC profile bitstreams. > > How can I change the same for generating ER enabled AAC LC bitstreams > > Thanks and regards, About what software (if at all) are you talking? Regards, Ralph -- Dipl.-Ing. Ralph Sperschneider | Phone: +49 9131 776 344 Fraunhofer IIS | Fax: +49 9131 776 398 Am Wolfsmantel 33 | mailto:ralph.sperschneider@iis.fraunhofer.de D 91058 Erlangen | http://www.iis.fraunhofer.de/amm/ From haricharan.l ittiam.com Wed May 12 20:19:13 2004 From: haricharan.l ittiam.com (Haricharan L.) Date: Wed May 12 15:42:23 2004 Subject: [Mp4-tech] [Audio] Query about HE-AAC Message-ID: <45A1F95BB9D7D84FAB0A1EB4D67EEF96C0D60B@is01ex01.ittiam.com> Hi all, I am an MPEG committe member and I have the access to the mpeg wg11 site (mpeg.nist.gov). I have found a document describing the test spec for HE-AAC (N6468). I have two queries. 1. Is this the latest testing spec ? 2. This doc refers to some testing tools required for testing HE-AAC. I would like to know as to where I can find these testing tools and their src code. Regards, Haricharan From mykim us.ibm.com Wed May 12 11:28:41 2004 From: mykim us.ibm.com (Michelle Y Kim) Date: Wed May 12 15:46:15 2004 Subject: [Mp4-tech] [Video] m4v to mp4 converter In-Reply-To: Message-ID: You can try IBM toolkit for MPEG-4 from IBM alphaWorks: http://www.alphaworks.ibm.com/tech/tk4mpeg4 Best regards, Michelle Dr. Michelle Y. Kim Manager, Composite Media Technologies Group IBM T. J. Watson Research Center mykim@us.ibm.com (914) 784-7709 (voice) (914) 784-7455 (fax) nitgupta@hss.hns.com Sent by: mp4-tech-bounces@lists.mpegif.org 05/12/2023 02:18 AM To mp4-tech@lists.mpegif.org cc Subject [Mp4-tech] [Video] m4v to mp4 converter Hi all, I want to convert the MPEG4 video conformance streams (*.m4v) to .mp4 format. Can anyone help me by sending a pointer to such a utility. Thanx, Nitin. _______________________________________________ NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040512/4ce6cea1/attachment.html From garysull windows.microsoft.com Wed May 12 12:48:17 2004 From: garysull windows.microsoft.com (Gary Sullivan) Date: Wed May 12 15:50:26 2004 Subject: [Mp4-tech] RE: [jvt-experts] Companies with complete H.264/AVC solutions Message-ID: <91D7F2CEE3425A4A9D11311D09FCE246064AD846@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> Skipped content of type multipart/alternative-------------- next part -------------- A non-text attachment was scrubbed... Name: JVT-L009d8.zip Type: application/x-zip-compressed Size: 89893 bytes Desc: JVT-L009d8.zip Url : /pipermail/mp4-tech/attachments/20040512/a9266c33/JVT-L009d8-0001.bin From Wesley.DeNeve ugent.be Wed May 12 22:13:30 2004 From: Wesley.DeNeve ugent.be (Wesley De Neve) Date: Wed May 12 18:48:50 2004 Subject: [Mp4-tech] [Video] m4v to mp4 converter References: Message-ID: <01d201c43855$3cc36330$bb27f351@dune> Hi, nitgupta@hss.hns.com wrote: > Hi all, > > I want to convert the MPEG4 video conformance streams (*.m4v) to > .mp4 format. Can anyone help me by sending a pointer to such > a utility. You can for instance make use of MP4Creator, a tool that is available in the MPEG4IP package (http://mpeg4ip.sourceforge.net/). AVgen (part of the IBM Toolkit for MPEG-4) can also do the job for you (http://www.alphaworks.ibm.com/tech/tk4mpeg4). The latter can even play the elementary streams. Best regards, Wesley De Neve From gey iis.fhg.de Wed May 12 22:33:51 2004 From: gey iis.fhg.de (Stefan Geyersberger) Date: Wed May 12 18:52:37 2004 Subject: [Mp4-tech] [video] Companies with working H.264/AVC solutions ? In-Reply-To: <003001c4380d$4f4ca590$b51cfea9@Gustav> References: <003001c4380d$4f4ca590$b51cfea9@Gustav> Message-ID: <40A27C1F.5090500@iis.fhg.de> Iain, you should add: Fraunhofer HHI Fraunhofer IIS On 12.05.2024 12:38, Iain Richardson wrote: > I know this is not strictly a "tech" question - sorry - but I think this > list will reach the right people.. > > I'm updating my list of companies who offer H.264/AVC solutions. Here's > what I have at present: > > BT Exact > DemoGraFX > Envivio > Equator > MainConcept > Moonlight > Polycom > Sand Video > UBVideo > Vanguard Software Solutions > VideoLocus > W&W Communications (and DSP Research) > > If your company has a working (!) H.264-compatible solution and you're > not on the list, please could you email me with brief details and I will > add you to the list. I intend to publish the list on the vcodex site and > include it in a forthcoming guide to H.264/AVC. > > Many thanks > > Iain Richardson > i.g.richardson@rgu.ac.uk > iainrichardson@ieee.org (preferred email for replies) > HYPERLINK "www.vcodex.com"_www.vcodex.com_ > > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.673 / Virus Database: 435 - Release Date: 01/05/2024 > > > > ------------------------------------------------------------------------ > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -------------- next part -------------- A non-text attachment was scrubbed... Name: gey.vcf Type: text/x-vcard Size: 395 bytes Desc: not available Url : /pipermail/mp4-tech/attachments/20040512/b4b1b119/gey.bin From zhweizh mailst.xjtu.edu.cn Thu May 13 12:20:32 2004 From: zhweizh mailst.xjtu.edu.cn (zhweizh) Date: Thu May 13 08:21:24 2004 Subject: [Mp4-tech] ASP and SSP Message-ID: <200405130345.i4D3jMZ7029280@lists1.magma.ca> Hi, what are the differences between the advanced simple profile and the simple scalable profile of MPEG-4? many thanks ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡zhweizh ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡zhweizh@mailst.xjtu.edu.cn ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡2004-05-13 From collinpaul swagmail.com Thu May 13 17:31:55 2004 From: collinpaul swagmail.com (Collin) Date: Thu May 13 08:26:48 2004 Subject: [Mp4-tech] Regds. MPEG4 aacplus SBR bitstreams Message-ID: <66bdd9bed05d5e8ebdff39bb932e3358@swagmail.com> Dear All, I am interested in the SBR tool of the FAAD release. 1. Can anyone give me pointers on where to get SBR conformance bitstreams. 2. Any tool through i can generate SBR bitstreams. Thanks in advance. Collin Paul .... Samsung ____________________________________________ http://www.swagmail.com - Faster email is cheaper email From cyril.concolato enst.fr Thu May 13 10:01:30 2004 From: cyril.concolato enst.fr (Cyril Concolato) Date: Thu May 13 08:30:26 2004 Subject: [Mp4-tech] [Video] m4v to mp4 converter In-Reply-To: References: Message-ID: <40A31D4A.8090003@enst.fr> nitgupta@hss.hns.com wrote: > > >Hi all, > > I want to convert the MPEG4 video conformance streams (*.m4v) to > .mp4 format. Can anyone help me by sending a pointer to such > a utility. > > You can use the tool called MP4Box from the open source GPAC project (http://gpac.sourceforge.net). You'll be able to play it with the Osmo4 player from the same project. Best, Cyril Concolato > Thanx, > Nitin. > >_______________________________________________ >NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > >Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php > > From t.dove vqual.biz Thu May 13 10:58:03 2004 From: t.dove vqual.biz (Thomas Dove) Date: Thu May 13 08:32:43 2004 Subject: [Mp4-tech] RE: [jvt-experts] Companies with complete H.264/AVCsolutions References: <91D7F2CEE3425A4A9D11311D09FCE246064AD846@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> Message-ID: <008e01c438c8$673ecc80$0800a8c0@neptune> MessageGary, FYI, could I ask for a few updates to the slide for Vqual: (1) Vprove supports not only Main Profile, but also Baseline and Extended Profiles at all levels - in fact, Vprove has supported Baseline and Extended for 6 months (2) Vprove also provides a great deal of optimisation information - this is a primary use of Vprove as well (3) besides Vprove, we also now have "Vclips video test sequences for H.264/AVC. These comprise functional tests for Baseline, Extended and Main Profiles (all Levels) plus error tests (checking of common error conditions we have seen in customer H.264/AVC bitstreams over the past 6 months). (These will be formally launched in the next week or so: we have actually been selling these for the past few months, but the product line will only be complete this week, which is why we have not launched them earlier.) Thanks & regards, Thomas Dove Vqual Ltd. Trym Lodge 1 Henbury Road Bristol BS9 3HQ UK E-mail: t.dove@vqual.biz Tel.: +44 (0)117 3101 244 Direct: +44 (1)117 373 6255 Fax: +44 (0)117 3101 277 Direct fax: +44 (1)117 373 6250 Mobile: +44 (0)7771 560 799 Web: www.vqual.biz ************************************************************ The information in this message is confidential and may be privileged. It is intended for the addressee alone. If you are not the intended recipient it is prohibited to disclose, use or copy this information. Please contact the sender immediately should this message have been transmitted incorrectly. ************************************************************ ----- Original Message ----- From: Gary Sullivan To: Iain Richardson ; jvt-experts@mail.imtc.org Cc: mp4-tech@lists.mpegif.org Sent: Wednesday, May 12, 2024 7:48 PM Subject: [Mp4-tech] RE: [jvt-experts] Companies with complete H.264/AVCsolutions Iain, See the attached powerpoint presentation (particularly slide number 2), which I am preparing as a contribution for the July meeting. Best Regards, -Gary Sullivan -----Original Message----- From: Iain Richardson [mailto:iainrichardson@ieee.org] Sent: Wednesday, May 12, 2024 3:36 AM To: jvt-experts@mail.imtc.org Subject: [jvt-experts] Companies with complete H.264/AVC solutions (sorry if you receive this via 2 lists) I'm updating my list of companies who offer H.264 solutions. Here's what I have at present: BT Exact DemoGraFX Envivio Equator MainConcept Moonlight Polycom Sand Video UBVideo Vanguard Software Solutions VideoLocus W&W Communications (and DSP Research) If your company has a working (!) H.264-compatible solution, please could you email me with brief details and I will add you to the list. I intend to publish the list on the vcodex site and include it in a forthcoming guide to H.264/AVC. Many thanks Iain Richardson i.g.richardson@rgu.ac.uk iainrichardson@ieee.org (preferred email for replies) HYPERLINK "www.vcodex.com"www.vcodex.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.673 / Virus Database: 435 - Release Date: 01/05/2024 --- The use of the jvt-experts list is intended only for the video coding standardization work conducted by the Joint Video Team (JVT) of ISO/IEC JTC1/SC29/WG11 (MPEG) and ITU-T SG16 Q.6 (VCEG). ------------------------------------------------------------------------------ _______________________________________________ NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040513/e3139767/attachment.html From nitgupta hss.hns.com Thu May 13 15:39:47 2004 From: nitgupta hss.hns.com (nitgupta@hss.hns.com) Date: Thu May 13 08:35:52 2004 Subject: [Mp4-tech] [Video] GMC in Advanced simple profile Message-ID: Hi all, This is in regards to the implementation of Global Motion Compensation in Advanced simple profile. "sprite enable" has 4 possible values : 00 - sprite not used 01 - static (basic/low latency) 10 - GMC 11 - reserved My question is that is 00 and 01 values for "sprite enable" are applicable for Advanced simple profile ? Also will i get "split width" and "split height" in an ASP bitstream since these are only present when "sprite enable" is not equal to GMC. Regards, Nitin. From tma iis.fhg.de Thu May 13 15:48:18 2004 From: tma iis.fhg.de (Herbert Thoma) Date: Thu May 13 11:53:49 2004 Subject: [Mp4-tech] [Video] GMC in Advanced simple profile In-Reply-To: References: Message-ID: <40A36E92.5000609@iis.fhg.de> nitgupta@hss.hns.com schrieb: > > > > Hi all, > > This is in regards to the implementation of Global Motion Compensation > in Advanced simple profile. > > "sprite enable" has 4 possible values : > 00 - sprite not used 00 is applicable if you don't use GMC > 01 - static (basic/low latency) 01 is not allowed in an ASP bitstream > 10 - GMC 10 is applicable if you use GMC > 11 - reserved > > My question is that is 00 and 01 values for "sprite enable" are applicable > for Advanced simple profile ? > Also will i get "split width" and "split height" in an ASP bitstream since > these are only present when No, these syntax elements are part of the "normal" sprite coding, not in ASP. > "sprite enable" is not equal to GMC. > > Regards, > Nitin. > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php > -- Herbert Thoma Group Manager Video Multimedia Realtime Systems Department Fraunhofer IIS Am Wolfsmantel 33, 91058 Erlangen, Germany Phone: +49-9131-776-323 Fax: +49-9131-776-399 email: tma@iis.fhg.de www: http://www.iis.fhg.de/ From Wesley.DeNeve ugent.be Thu May 13 16:31:54 2004 From: Wesley.DeNeve ugent.be (Wesley De Neve) Date: Thu May 13 11:56:24 2004 Subject: [Mp4-tech] [Video] m4v to mp4 converter References: <40A31D4A.8090003@enst.fr> Message-ID: <029501c438ee$bc94d960$bacdc19d@Poulenc> Hi Cyril, all, Cyril Concolato wrote: > nitgupta@hss.hns.com wrote: >> Hi all, >> >> I want to convert the MPEG4 video conformance streams (*.m4v) to >> .mp4 format. Can anyone help me by sending a pointer to such >> a utility. >> >> > You can use the tool called MP4Box from the open source GPAC project > (http://gpac.sourceforge.net). You'll be able to play it with the Osmo4 > player from the same project. Can the conversion be done without the intermediate step of having to create an NHNT-description? The latter was actually the reason why I didn't mention MP4Box. Best regards, Wesley From gcp sjeng.org Thu May 13 18:24:15 2004 From: gcp sjeng.org (Gian-Carlo Pascutto) Date: Thu May 13 11:58:55 2004 Subject: [Mp4-tech] Regds. MPEG4 aacplus SBR bitstreams References: <66bdd9bed05d5e8ebdff39bb932e3358@swagmail.com> Message-ID: <001301c438fe$5ac9f4d0$8d00a8c0@Dell> > 2. Any tool through i can generate SBR bitstreams. The Nero AAC encoder can generate HE-AAC files, that should do. You can try the demo - it will allow you to encode 50 times. -- GCP From gpascutto nero.com Thu May 13 18:33:20 2004 From: gpascutto nero.com (Gian-Carlo Pascutto) Date: Thu May 13 12:01:27 2004 Subject: [Mp4-tech] Regds. MPEG4 aacplus SBR bitstreams References: <66bdd9bed05d5e8ebdff39bb932e3358@swagmail.com> Message-ID: <004601c438ff$9fe94f60$8d00a8c0@Dell> > Dear All, > > I am interested in the SBR tool of the FAAD release. > 1. Can anyone give me pointers on where to get SBR conformance bitstreams. They're on the FhG ftp server. > 2. Any tool through i can generate SBR bitstreams. The Nero AAC encoder can generate HE-AAC files, that should do. You can try the demo - it will allow you to encode 50 times. -- GCP From zombiyaga yahoo.com Fri May 14 02:46:31 2004 From: zombiyaga yahoo.com (Alex) Date: Fri May 14 09:14:20 2004 Subject: [Mp4-tech] [Video] m4v player In-Reply-To: <40A31D4A.8090003@enst.fr> Message-ID: <20040514084631.85021.qmail@web14521.mail.yahoo.com> Hi All, I need some player for plain mpeg4 bitstream (m4v); Does anybody have such player or some link, where it could be public available ? Thanks, -- Regards, Alex --------------------------------- Do you Yahoo!? SBC Yahoo! - Internet access at a great low price. -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040514/4dc27c24/attachment.html From snd codingtechnologies.com Fri May 14 12:48:24 2004 From: snd codingtechnologies.com (Andreas Schneider) Date: Fri May 14 09:16:39 2004 Subject: [Mp4-tech] [Audio] Query about HE-AAC In-Reply-To: <45A1F95BB9D7D84FAB0A1EB4D67EEF96C0D60B@is01ex01.ittiam.com> References: <45A1F95BB9D7D84FAB0A1EB4D67EEF96C0D60B@is01ex01.ittiam.com> Message-ID: <40A495E8.7030701@codingtechnologies.com> Hi, Haricharan L. wrote: > Hi all, > > I am an MPEG committe member and I have the access to the mpeg wg11 site (mpeg.nist.gov). > I have found a document describing the test spec for HE-AAC (N6468). I have two queries. > > 1. Is this the latest testing spec ? yes. > 2. This doc refers to some testing tools required for testing HE-AAC. > I would like to know as to where I can find these testing tools and their src code. A sample implementation of the sbr conformance tool is part of the reference software available to MPEG members at the Hannover ftp-site. Hope this helps, Andreas > > Regards, > Haricharan > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php > -- _______________________________________________________________________ Andreas Schneider | Research Engineer | Coding Technologies | phone: +49 (0) 911 92891 -26 | Deutschherrnstr. 15-19 fax: +49 (0) 911 92891 -99 | 90429 Nuernberg, Germany mailto:snd@CodingTechnologies.com | http://www.CodingTechnologies.com From nso01r ecs.soton.ac.uk Fri May 14 15:33:36 2004 From: nso01r ecs.soton.ac.uk (Noor Othman) Date: Sat May 15 08:00:24 2004 Subject: [Mp4-tech] [audio] best coder for 64kbit/s Message-ID: <40A4CAB0.7070900@ecs> Hi, Can anyone help me to understand, what is the best coder at 64kbit/s and above? And did I get it right that TwinVQ is only operates at bit rates between 6-16 kbit/s? But I have tried for higher bitrate it gives better output. Thanks for your help. Regards, Noor From woodsp us.ibm.com Fri May 14 15:14:40 2004 From: woodsp us.ibm.com (Steve Wood) Date: Sat May 15 08:01:21 2004 Subject: [Mp4-tech] [Video] m4v player In-Reply-To: <20040514084631.85021.qmail@web14521.mail.yahoo.com> Message-ID: Alex, the "IBM Toolkit for MPEG-4", which can be found at http://www.alphaworks.ibm.com/tech/tk4mpeg4 , can play raw video (m4v) streams. Regards, Steve Wood Composite Media Technologies Group IBM TJ Watson Research, 19 Skyline Drive, Hawthorne, NY 10532. USA Alex Sent by: mp4-tech-bounces@lists.mpegif.org 05/14/2004 04:46 AM Please respond to zombiyaga To: mp4-tech@lists.mpegif.org cc: Subject: [Mp4-tech] [Video] m4v player Hi All, I need some player for plain mpeg4 bitstream (m4v); Does anybody have such player or some link, where it could be public available ? Thanks, -- Regards, Alex Do you Yahoo!? SBC Yahoo! - Internet access at a great low price. _______________________________________________ NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040514/33e5dda9/attachment.html From cyril.concolato enst.fr Mon May 17 10:42:36 2004 From: cyril.concolato enst.fr (Cyril Concolato) Date: Mon May 17 08:22:58 2004 Subject: [Mp4-tech] [Video] m4v to mp4 converter In-Reply-To: <029501c438ee$bc94d960$bacdc19d@Poulenc> References: <40A31D4A.8090003@enst.fr> <029501c438ee$bc94d960$bacdc19d@Poulenc> Message-ID: <40A86CEC.6070306@enst.fr> Hi Wesley, >>>Hi all, >>> >>>I want to convert the MPEG4 video conformance streams (*.m4v) to >>>.mp4 format. Can anyone help me by sending a pointer to such >>>a utility. >>> >>> >>You can use the tool called MP4Box from the open source GPAC project >>(http://gpac.sourceforge.net). You'll be able to play it with the Osmo4 >>player from the same project. >> >> >Can the conversion be done without the intermediate step of having to create >an NHNT-description? The latter was actually the reason why I didn't mention >MP4Box. > > Actually, not. You have indeed to produce the NHNT description. Best regards, Cyril -- Ecole Nationale Sup?rieure des T?l?communications, Paris Dept. Comelec 46, rue Barrault 75013 Paris Tel: +33145817991 Fax: +33145804036 From h.karim eim.surrey.ac.uk Tue May 18 12:03:58 2004 From: h.karim eim.surrey.ac.uk (Hezerul Abdul Karim) Date: Tue May 18 10:54:49 2004 Subject: [Mp4-tech] Turn off motion estimation without affecting rate control Message-ID: Hi, How do I turn of the motion estimation process in MPEG4 Reference software (C++ version) without affecting the rate control? I did disable the motion estimation, but the rate control is effected (i.e. it skips frame). I dont want it to skip frames when I disable the motion estimation. Thank you, Hezerul Abdul Karim CCSR, University of Surrey, UK From avishek_says rediffmail.com Tue May 18 13:03:52 2004 From: avishek_says rediffmail.com (Avishek Saha) Date: Tue May 18 10:57:24 2004 Subject: [Mp4-tech] [video] Reference software Message-ID: <20040518120347.22821.qmail@webmail35.rediffmail.com> An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040518/261f7173/attachment.html -------------- next part -------------- Hello everybody, Can any one tell me, where I can get the reference code for Mpeg4 Video Version 2? The link in the location http://www.chiariglione.org/mpeg/working_documents.htm is not working properly. Thanks in advance, Avishek. From dattaguru.b.n celstream.com Tue May 18 18:57:07 2004 From: dattaguru.b.n celstream.com (Dattaguru B.N) Date: Tue May 18 10:59:43 2004 Subject: [Mp4-tech] SBR Conformance tool set up Message-ID: <80464F9A4D2BF042A154DD067F1F539322EADA@CEL-BANGT-M01> Hi to all, Can anybody suggest me how to set up SBR conformance tool in Windows and in Linux. Thanks in advance, Datta This message is free from Virus - IMSS -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040518/90d37d1a/attachment.html From h.karim eim.surrey.ac.uk Tue May 18 13:37:06 2004 From: h.karim eim.surrey.ac.uk (Hezerul Abdul Karim) Date: Tue May 18 11:02:05 2004 Subject: [Mp4-tech] MPEG4 Multiple Auxiliary Component (MAC) Message-ID: Dear All, How do MPEG4 encode the MAC? Is it using the motion vector from texture component or perform its own motion estimation? Thank you, Hezerul Abdul Karim CCSR, University of Surrey, UK From tobias.faerber siemens.com Tue May 18 17:18:04 2004 From: tobias.faerber siemens.com (Faerber Tobias ICM MP PD SW 4 MCH 21) Date: Tue May 18 11:02:11 2004 Subject: [Mp4-tech] HE-AAC Test Bitstreams Message-ID: Hi all, could anyone please let me know where to get actual conformance bitstreams for HE-AAC ? Thanx, BR, Tobi -------------------------------------------------------- Faerber Tobias Siemens AG Information and Communication Mobile mailto:tobias.faerber@siemens.com ---------------------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040518/0e236f4b/attachment.html From singer apple.com Tue May 18 11:45:51 2004 From: singer apple.com (Dave Singer) Date: Tue May 18 12:28:52 2004 Subject: [Mp4-tech] Is it possible to attach uncompressed wave audio data toMP4 ? In-Reply-To: <011a01c436ca$11174d50$9a9bf051@dune> References: <409EFBF8.4000806@csis.hku.hk> <011a01c436ca$11174d50$9a9bf051@dune> Message-ID: At 10:04 PM +0200 5/10/04, Wesley De Neve wrote: >Hi Philip, all, > >Philip Hong wrote: >> Per the captioned question, If it is possible, please advise me with the >> details/URLs. It would be the best if you can email me some mp4 sample >> files constructed with uncompressed wave data. > >This pointer can perhaps push you a bit in the right direction: >http://lists.mpegif.org/pipermail/mp4-tech/2004-January/003167.html > >We are currently not aware of a player that does support such a >construction, despite some interest for it. suggest that anyone putting uncompressed audio in MP4-family have a look at the Motion JPEG 2000 spec., which defines the formats and code points. > >Kind regards, >-Wesley > >-- >Ghent University >ELIS / Multimedia Lab > > >_______________________________________________ >NOTE: Please use clear subject lines for your posts. Include [audio, >[video], [systems], [general] or another apppropriate identifier to >indicate the type of question you have. > >Note: Conduct on the mailing list is subject to the Antitrust >guidelines found at >http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -- David Singer Apple Computer/QuickTime From sriram.sethuraman ittiam.com Wed May 19 11:36:32 2004 From: sriram.sethuraman ittiam.com (Sriram Sethuraman) Date: Wed May 19 10:32:15 2004 Subject: [Mp4-tech] RE: [jvt-experts] Companies with complete H.264/AVCsolutions Message-ID: <45A1F95BB9D7D84FAB0A1EB4D67EEF96FAF3DD@is01ex01.ittiam.com> Gary/Iain, We, Ittiam Systems (Pvt.) Ltd. (based in Bangalore, India), currently offer the following H.264 based solutions. 1. H.264 Main Profile Decoder on TI DM642 - Demonstrated at the TI Developer's Conference, Houston (Feb 2004) - Integrated audio/video streaming player solution on the DM642 2. MPEG-2 MP@ML to H.264 MP@L3 Transcoder - Evaluation kits will be available in June on PC and TI DM642 - Supports trans-scaling to multiple sub resolutions - To be demonstrated at ICME 2004 Further information can be found on: http://www.ittiam.com/pages/products/h264-dec.htm http://www.ittiam.com/pages/products/h264-transcode.htm Regards, Sriram Sethuraman ____________________________ Senior Member of Technical Staff Video & Imaging Group Ittiam Systems (Pvt.) Ltd. Bangalore, India ____________________________ -----Original Message----- From: Gary Sullivan [mailto:garysull@windows.microsoft.com] Sent: Thursday, May 13, 2024 12:18 AM To: Iain Richardson; jvt-experts@mail.imtc.org Cc: mp4-tech@lists.mpegif.org Subject: [Mp4-tech] RE: [jvt-experts] Companies with complete H.264/AVCsolutions Iain, See the attached powerpoint presentation (particularly slide number 2), which I am preparing as a contribution for the July meeting. Best Regards, -Gary Sullivan -----Original Message----- From: Iain Richardson [mailto:iainrichardson@ieee.org] Sent: Wednesday, May 12, 2024 3:36 AM To: jvt-experts@mail.imtc.org Subject: [jvt-experts] Companies with complete H.264/AVC solutions (sorry if you receive this via 2 lists) I'm updating my list of companies who offer H.264 solutions. Here's what I have at present: BT Exact DemoGraFX Envivio Equator MainConcept Moonlight Polycom Sand Video UBVideo Vanguard Software Solutions VideoLocus W&W Communications (and DSP Research) If your company has a working (!) H.264-compatible solution, please could you email me with brief details and I will add you to the list. I intend to publish the list on the vcodex site and include it in a forthcoming guide to H.264/AVC. Many thanks Iain Richardson i.g.richardson@rgu.ac.uk iainrichardson@ieee.org (preferred email for replies) HYPERLINK "www.vcodex.com"www.vcodex.com --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system ( http://www.grisoft.com). Version: 6.0.673 / Virus Database: 435 - Release Date: 01/05/2024 --- The use of the jvt-experts list is intended only for the video coding standardization work conducted by the Joint Video Team (JVT) of ISO/IEC JTC1/SC29/WG11 (MPEG) and ITU-T SG16 Q.6 (VCEG). -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040519/36368531/attachment.html From tma iis.fhg.de Wed May 19 11:22:05 2004 From: tma iis.fhg.de (Herbert Thoma) Date: Wed May 19 10:36:36 2004 Subject: [Mp4-tech] MPEG4 Multiple Auxiliary Component (MAC) In-Reply-To: References: Message-ID: <40AB192D.60500@iis.fhg.de> Hezerul Abdul Karim schrieb: > Dear All, > > How do MPEG4 encode the MAC? Is it using the motion vector > from texture component or perform its own motion estimation? MAC uses the same coding modes (INTRA, INTER, INTER_4V, GMC, ...) and motion vectors as the texture component. Herbert. > Thank you, > > Hezerul Abdul Karim > CCSR, University of Surrey, > UK > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php > -- Herbert Thoma Group Manager Video Multimedia Realtime Systems Department Fraunhofer IIS Am Wolfsmantel 33, 91058 Erlangen, Germany Phone: +49-9131-776-323 Fax: +49-9131-776-399 email: tma@iis.fhg.de www: http://www.iis.fhg.de/ From haricharan.l ittiam.com Wed May 19 21:45:02 2004 From: haricharan.l ittiam.com (Haricharan L.) Date: Wed May 19 11:50:22 2004 Subject: [Mp4-tech] [Audio] SBR conformance Tool Message-ID: <45A1F95BB9D7D84FAB0A1EB4D67EEF96C0D62B@is01ex01.ittiam.com> > Hi, > > I have a query regarding building of SBR conformance tool. > I have downloaded the file ' w6248-audio-rc2.tgz ' from Hannover FTP site. When I try to build it > (using the makefile provided), it gives errors saying that some of the header files are missing. > (libtsp.h, AFpar.h, MP4Movies.h ...) > > Can anyone help me? > > Regards, > Haricharan From dattaguru.b.n celstream.com Thu May 20 10:56:28 2004 From: dattaguru.b.n celstream.com (Dattaguru B.N) Date: Thu May 20 02:31:05 2004 Subject: [Mp4-tech] SBR Conformance tool set up Message-ID: <80464F9A4D2BF042A154DD067F1F539322EADC@CEL-BANGT-M01> Hi I am able to set up using the make file, but I am getting an error message in Linux that "too few arguments to function `check_bitBuffer_sim'" in the file decoderConfTool.c Thanks in advance, Datta -----Original Message----- From: Dattaguru B.N [mailto:dattaguru.b.n@celstream.com] Sent: Tuesday, May 18, 2024 5:57 PM To: mp4-tech@lists.mpegif.org Subject: [Mp4-tech] SBR Conformance tool set up Hi to all, Can anybody suggest me how to set up SBR conformance tool in Windows and in Linux. Thanks in advance, Datta This message is free from Virus - IMSS This message is free from Virus - IMSS -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040520/e25684cb/attachment.html From padmashri.suresh wipro.com Thu May 20 11:29:08 2004 From: padmashri.suresh wipro.com (padmashri.suresh@wipro.com) Date: Thu May 20 02:35:38 2004 Subject: [Mp4-tech] subscribe to the mailing list Message-ID: Hi I would like to be subscribed to the mailing list of MP4and JVT expert group. Please let me know the procedure Thanks in advance SP Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Wipro or Mailadmin@wipro.com immediately and destroy all copies of this message and any attachments. -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040520/a66a9377/attachment.html From nso01r ecs.soton.ac.uk Thu May 20 13:31:39 2004 From: nso01r ecs.soton.ac.uk (Noor Othman) Date: Thu May 20 10:27:13 2004 Subject: [Mp4-tech] [audio] TWINVQ Message-ID: <40AC971B.8050809@ecs> Hi, Can anyone help? I have an audio file of 44.1 kHz sampling frequency, and want it to be passed through the T/F coders, using TWINVQ quantization and coding method, of bitrates 16 kbit/s. But I have a problem to get exactly 16 kbit/s bitrate encoded data. I have chosen core bitrate of 16 kbit/s and bitrate switch of 16kbit/s however, the program halted or rather I received Segmentation fault comments, and after debugging I found out that the process of line 1428 in enc_tf.c; in the function EncTfFrame( ), was not processed. Can someone help me, what's wrong. One more question, in compiling does it matter if I don't choose TF=1 or not? Thanks... looking forward to replies... Regards, Noor From dipankar.mitra lgsoftindia.com Fri May 21 16:50:52 2004 From: dipankar.mitra lgsoftindia.com (Dipankar Mitra) Date: Fri May 21 10:24:58 2004 Subject: [Mp4-tech] [3GPP File boxes] Message-ID: Hi, Can someone point me to where I can get information about the 'esd' box in 3gpp file format (*.3gp files)? Regards, Dipankar From nso01r ecs.soton.ac.uk Fri May 21 16:12:48 2004 From: nso01r ecs.soton.ac.uk (Noor Othman) Date: Fri May 21 11:02:31 2004 Subject: [Mp4-tech] [audio]TWINVQ again References: <200405201600.i4KG0gEN013050@lists1.magma.ca> Message-ID: <40AE0E60.8090801@ecs> Hello everyone, What's the different between MPEG4 referecence software and < MPEG-4 Natural Audio Encoder (Edition 2001) 20-Aug-2001>? I can use the TWINVQ quantization and coding in the older version successfully, however, using the same command to the newer (or is it newest) version, it gives Segmentation Fault. Thanks. Regards, Noor From jboue resonate-mp4.com Fri May 21 17:40:26 2004 From: jboue resonate-mp4.com (=?iso-8859-1?Q?Jerome_Bou=E9?=) Date: Fri May 21 11:02:36 2004 Subject: [Mp4-tech] [3GPP File boxes] References: Message-ID: <005401c43f41$8e8520d0$6a00a8c0@arsenal> You can get this information in both documents : ISO 14496-14 (MP4 File Format) and ISO 14496-1 (MPEG-4 Part1: Systems); but they are not public... Regards, Jerome ----- Original Message ----- From: "Dipankar Mitra" To: Sent: Friday, May 21, 2024 12:20 PM Subject: [Mp4-tech] [3GPP File boxes] > Hi, > Can someone point me to where I can get information about the 'esd' box in 3gpp file format (*.3gp files)? > Regards, > Dipankar > > > > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php > From h.karim eim.surrey.ac.uk Fri May 21 19:13:24 2004 From: h.karim eim.surrey.ac.uk (Hezerul Abdul Karim) Date: Fri May 21 13:59:06 2004 Subject: [Mp4-tech] [video] MPEG4 Rate Control In-Reply-To: <005401c43f41$8e8520d0$6a00a8c0@arsenal> References: <005401c43f41$8e8520d0$6a00a8c0@arsenal> Message-ID: Dear All, MPEG4 (C++ version) Rate Control TM5 cannot be used for non-rectangular VOPs. Is there any implementation of rate control TM5 that can work on non-rectangular VOP? Thank you, Hezerul Abdul Karim CCSR, University of Surrey, UK From andrezza cpqd.com.br Fri May 21 18:27:26 2004 From: andrezza cpqd.com.br (=?iso-8859-1?Q?Andrezza_Almeida_Gusm=E3o?=) Date: Fri May 21 17:52:44 2004 Subject: [Mp4-tech] H.264/AVC Message-ID: <097013530AD6F24F8D21F7CABCB26A25EBAE58@MAILSRV1.aquarius.cpqd.com.br> Hi, I would like to know if the H.264/AVC (MPEG-4 Part 10) allows using the same principles of spatial scalability known from the existing standards such as MPEG-2 for high bit rate. Generating two spatial resolution video layers from a single video source such that the lower layer is coded by itself to provides the SDTV bitstream and the enhancement layer employs the spatially interpolated lower layer to provides the HDTV signal. Thank you a lot. Andrezza Andrezza Almeida Gusm?o Diretoria de TV Digital - DTVD CPqD Telecom & IT Solutions Tel.: +55 19 3705-4092 / Fax: +55 19 3705-5868 andrezza@cpqd.com.br www.cpqd.com.br From garysull windows.microsoft.com Fri May 21 18:24:23 2004 From: garysull windows.microsoft.com (Gary Sullivan) Date: Sat May 22 16:46:59 2004 Subject: [Mp4-tech] H.264/AVC Message-ID: <91D7F2CEE3425A4A9D11311D09FCE246090AFA9F@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> No, it doesn't have that. That kind of coding never really ended up getting used in widely-deployed real-world interoperable implementations. There is a lot of interest in new work on scalability in MPEG, to try to find a better way to do it than what was done in the past. But that is a longer-term area of work -- it was not included in the recently-completed work. Best Regards, Gary Sullivan +> -----Original Message----- +> From: mp4-tech-bounces@lists.mpegif.org +> [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of +> Andrezza Almeida Gusm?o +> Sent: Friday, May 21, 2024 1:27 PM +> To: mp4-tech@lists.mpegif.org +> Subject: [Mp4-tech] H.264/AVC +> +> Hi, +> +> I would like to know if the H.264/AVC (MPEG-4 Part 10) +> allows using the same principles of spatial scalability +> known from the existing standards such as MPEG-2 for high +> bit rate. Generating two spatial resolution video layers +> from a single video source such that the lower layer is +> coded by itself to provides the SDTV bitstream and the +> enhancement layer employs the spatially interpolated lower +> layer to provides the HDTV signal. +> Thank you a lot. +> +> Andrezza +> +> +> Andrezza Almeida Gusm?o +> Diretoria de TV Digital - DTVD +> CPqD Telecom & IT Solutions +> Tel.: +55 19 3705-4092 / Fax: +55 19 3705-5868 +> andrezza@cpqd.com.br +> www.cpqd.com.br +> +> +> +> _______________________________________________ +> NOTE: Please use clear subject lines for your posts. Include +> [audio, [video], [systems], [general] or another +> apppropriate identifier to indicate the type of question you have. +> +> Note: Conduct on the mailing list is subject to the +> Antitrust guidelines found at +> http://www.mpegif.org/public/documents/vault/mp-out-30042-Ant itrust.php +> From motoi dwalk.co.jp Mon May 24 15:08:27 2004 From: motoi dwalk.co.jp (D WALK =?ISO-2022-JP?B?GyRCQERMWjRwMGEbKEI=?=) Date: Mon May 24 04:46:43 2004 Subject: [Mp4-tech] Sample Mpeg4 Data Availability Message-ID: <20040524135315.6286.MOTOI@dwalk.co.jp> Hello, all. I am looking for the mpeg4 sample movie (format like *.mp4) meets the following conditions: - mpeg4 - simple profile - level3 - with more than tow multi-objects (captions, visual objects like shapes, circles, etc) - without sound data Does anyone know where can I find this or a tool being able to generate such a data? Thank you. From jammahesh web.de Mon May 24 11:22:20 2004 From: jammahesh web.de (Arul Mahesh) Date: Mon May 24 04:48:02 2004 Subject: [Mp4-tech] Re: Mp4-tech Digest, Vol 10, Issue 25 Message-ID: <68257976@web.de> An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040524/093bf5af/attachment.html From foakgul yahoo.com Mon May 24 03:10:12 2004 From: foakgul yahoo.com (Ferit Ozan Akgül) Date: Mon May 24 05:52:14 2004 Subject: [Mp4-tech] AVC - HDTV encoding by JM80 Message-ID: <20040524091012.50548.qmail@web21002.mail.yahoo.com> Hello, I would like to encode 1280x720p and 1920x1080p resolution videos (both YUV 4:2:0) with AVC encoder, however the encoder stops encoding (after encoding 2 frames for 720p and none for 1080p) saying "no frames for output available". I cant figure it out why it happens. Also for 1920x1080p 1080 is not divisible by 16 so how do we encode this format with AVC? Help will be very much appreciated. Thank you Ferit Ozan Akgul ---------------- Wireless Communication Lab (KWCL) Department of Electrical Engineering KOC University Rumeli Feneri Yolu, Sariyer 34450 Istanbul, Turkey Office Tel: +90 (212)338 1000 ext. 2642 http://wireless.ku.edu.tr --------------------------------- Do you Yahoo!? Yahoo! Domains - Claim yours for only $14.70/year -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040524/77466718/attachment.html From danijel.domazet zg.htnet.hr Mon May 24 13:56:22 2004 From: danijel.domazet zg.htnet.hr (D.Domazet) Date: Mon May 24 10:03:24 2004 Subject: [Mp4-tech] [audio] max_sfb name is misleading? Message-ID: <002e01c4417d$c0fe1150$1b02fea9@friend> Hi all, This question relates to MPEG-4 GA audio (AAC). I think that the max_sfb bitstream element's name is a bit misleading. In ISO 14496-3 max_sfb is described as: "number of scalefactor bands transmited per group...". so wouldn't it be better to name it num_sfb_per_group. Decoding goes like this (this repeats many times during coding process): for(g=0; g References: <80464F9A4D2BF042A154DD067F1F539322EADC@CEL-BANGT-M01> Message-ID: <40B1E102.7010508@codingtechnologies.com> Datta, obviously the current version of the SBR conformance tool fails to compile properly due to recent changes in the multichannel decoder module. Please use the snapshot dated 2024-03-14 instead. Regards, Andreas Dattaguru B.N wrote: > Hi > > I am able to set up using the make file, but I am getting an error > message in Linux > that "too few arguments to function *`check_bitBuffer_sim'*" in the file > *decoderConfTool.c* > > Thanks in advance, > Datta > > > > > -----Original Message----- > *From:* Dattaguru B.N [mailto:dattaguru.b.n@celstream.com] > *Sent:* Tuesday, May 18, 2024 5:57 PM > *To:* mp4-tech@lists.mpegif.org > *Subject:* [Mp4-tech] SBR Conformance tool set up > > Hi to all, > > Can anybody suggest me how to set up SBR conformance tool > in Windows and in Linux. > > Thanks in advance, > Datta > > This message is free from Virus - IMSS > > This message is free from Virus - IMSS > > > ------------------------------------------------------------------------ > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -- _______________________________________________________________________ Andreas Schneider | Research Engineer | Coding Technologies | phone: +49 (0) 911 92891 -26 | Deutschherrnstr. 15-19 fax: +49 (0) 911 92891 -99 | 90429 Nuernberg, Germany mailto:snd@CodingTechnologies.com | http://www.CodingTechnologies.com From srq ieee.org Mon May 24 11:32:48 2004 From: srq ieee.org (S. R. Quackenbush) Date: Mon May 24 10:59:10 2004 Subject: [Mp4-tech] [audio] max_sfb name is misleading? In-Reply-To: <002e01c4417d$c0fe1150$1b02fea9@friend> Message-ID: Daniel, Thanks for your comment. The history of "max_sfb" is that it is the maximum sfb that is coded in a given block and group, while num_sfb is a parameter dependent on the sampling rate and long/short block that is a given. So I agree that it may be confusing, and it is not very satisfying to say that it "made sense at the time" but it is difficult to make editorial changes in such a huch a huge document (as MPEG-4 Audio). Best, Schuyler --- Schuyler Quackenbush Chair, MPEG Audio Subgroup President, Audio Research Labs 336 Park Ave, Suite 200, Scotch Plains, NJ 07076 phone: 908 490 0700 srq@audioresearchlabs.com fax: 908 842 9151 www.audioresearchlabs.com -----Original Message----- From: mp4-tech-bounces@lists.mpegif.org [mailto:mp4-tech-bounces@lists.mpegif.org]On Behalf Of D.Domazet Sent: Monday, May 24, 2024 6:56 AM To: mp4-tech@lists.mpegif.org Subject: [Mp4-tech] [audio] max_sfb name is misleading? Hi all, This question relates to MPEG-4 GA audio (AAC). I think that the max_sfb bitstream element's name is a bit misleading. In ISO 14496-3 max_sfb is described as: "number of scalefactor bands transmited per group...". so wouldn't it be better to name it num_sfb_per_group. Decoding goes like this (this repeats many times during coding process): for(g=0; g References: Message-ID: At 3:50 PM +0530 5/21/04, Dipankar Mitra wrote: >Hi, > Can someone point me to where I can get information about the >'esd' box in 3gpp file format (*.3gp files)? it's only used for streams coming from mpeg-4, and for them, it is identical to the ones used in MP4. It contains the elementary stream descriptor for the stream. >Regards, >Dipankar > > > > >_______________________________________________ >NOTE: Please use clear subject lines for your posts. Include [audio, >[video], [systems], [general] or another apppropriate identifier to >indicate the type of question you have. > >Note: Conduct on the mailing list is subject to the Antitrust >guidelines found at >http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -- David Singer Apple Computer/QuickTime From Wesley.DeNeve ugent.be Mon May 24 21:56:51 2004 From: Wesley.DeNeve ugent.be (Wesley De Neve) Date: Mon May 24 15:26:57 2004 Subject: [Mp4-tech] Sample Mpeg4 Data Availability References: <20040524135315.6286.MOTOI@dwalk.co.jp> Message-ID: <021101c441c0$e00fbab0$302af351@dune> Hi, D WALK ???? wrote: > Hello, all. > > I am looking for the mpeg4 sample movie (format like *.mp4) meets the > following conditions: > > - mpeg4 > - simple profile > - level3 > - with more than tow multi-objects (captions, visual objects like shapes, > circles, etc) > - without sound data > > Does anyone know where can I find this or a tool being able to generate > such a data? The GPAC tools (among others) should be able to deal with that (implemented on top of XviD, FAAD, ...): http://gpac.sourceforge.net Best regards, Wesley -- Ghent University ELIS / Multimedia Lab From h_jch 163.com Tue May 25 12:48:37 2004 From: h_jch 163.com (tim huang) Date: Tue May 25 06:35:57 2004 Subject: [Mp4-tech] what the opensource about mpeg-4' encoder and decoder In-Reply-To: Message-ID: hi ..all i am studying mpeg-4,and i want to find some opensource to use. i search from internet,and find the opensource about mpeg-4 are below: mpegip, hdoc264,gpac,ffmpeg,xvid in these opensource, mpegip have full function include encoding,decoding,transform, but it used xvid not the standant of MPEG-4;hdoc264 only include decoding and encoding, gpac is only include system fuction. if i want to write a full decoder and encouder like realplay and realproduce,an they used MPEG-4 visual iso/iec 14496-2 or h.264, how can i make use of opensource? and how are you use the vm provided by mpeg(MoMuSys and microsoft)? can i word base on it. i didn't know how can i start, please help me. thanks in advance. tim.huang From motoi dwalk.co.jp Wed May 26 11:47:48 2004 From: motoi dwalk.co.jp (D WALK =?ISO-2022-JP?B?GyRCQERMWjRwMGEbKEI=?=) Date: Wed May 26 04:48:06 2004 Subject: [Mp4-tech] Sample Mpeg4 Data Availability In-Reply-To: <021101c441c0$e00fbab0$302af351@dune> References: <20040524135315.6286.MOTOI@dwalk.co.jp> <021101c441c0$e00fbab0$302af351@dune> Message-ID: <20040526103645.657E.MOTOI@dwalk.co.jp> Hi, > Wesley Thank you so much! I'll try. > shashidhar I will if I can get it. regards, motoi. On Mon, 24 May 2024 20:56:51 +0200 "Wesley De Neve" wrote: > Hi, > > D WALK ???? wrote: > > Hello, all. > > > > I am looking for the mpeg4 sample movie (format like *.mp4) meets the > > following conditions: > > > > - mpeg4 > > - simple profile > > - level3 > > - with more than tow multi-objects (captions, visual objects like shapes, > > circles, etc) > > - without sound data > > > > Does anyone know where can I find this or a tool being able to generate > > such a data? > > The GPAC tools (among others) should be able to deal with that (implemented > on top of XviD, FAAD, ...): > http://gpac.sourceforge.net > > Best regards, > Wesley > -- > Ghent University > ELIS / Multimedia Lab > > > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php -- D WALK ???? From h_jch 163.com Wed May 26 11:44:23 2004 From: h_jch 163.com (tim huang) Date: Wed May 26 04:49:38 2004 Subject: [Mp4-tech] what the opensource about mpeg-4' encoder and decoder In-Reply-To: <40b37773.24a.b40.20511@netmadeira.com> Message-ID: thanks for gouveia i want to find some opensource that fully compliant with ISO/IEC 14496-2. are xvid is fully compliant with ISO/IEC 14496-2? There are many people talk about divx, Is divx fully compliant with ISO/IEC 14496-2? how about opendivx and ffmpeg. if i want to migrate it to dsp,how can i begin? tim.huang 4.26 ----- Original Message Follows ----- > > > hi ..all > > i am studying mpeg-4,and i want to find some > opensource to use. > > i search from internet,and find the opensource about > mpeg-4 are below: > > mpegip, hdoc264,gpac,ffmpeg,xvid > > in these opensource, mpegip have full function include > encoding,decoding,transform, but it used xvid not the > standant of MPEG-4; xvid respects the iso/iec 14496-2 in a certain profile and level. What do you mean? you want a source code that implements all the bitstream sintaxe (i.e. all MPEG-4 features)? >hdoc264 only include decoding and > encoding, gpac is only include system fuction. > > if i want to write a full decoder and encouder like > realplay and realproduce >,an they used MPEG-4 visual > iso/iec 14496-2 or h.264, how can i make use of > opensource? Well, I don't completly understand your question, but you could use (for example) the xvid for implementing the Simple Profile, and Advanced Simple profile, and add the functionalities that you desire. Wath I'm saying is that you can use the open source code available to serve a a base of what you want to develop, obviously :) > > and how are you use the vm provided by mpeg(MoMuSys > and microsoft)? can i word base on it. > > i didn't know how can i start, please help me. > > thanks in advance. > > tim.huang > > I would like to help you more but I really don't get what your real problem is, try to explain better. _______________________________________________ > NOTE: Please use clear subject lines for your posts. > Include [audio, [video], [systems], [general] or another > apppropriate identifier to indicate the type of question > you have. > > Note: Conduct on the mailing list is subject to the > Antitrust guidelines found at > http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php From y_chhikara yahoo.com Wed May 26 00:35:57 2004 From: y_chhikara yahoo.com (yashwinder chhikara) Date: Wed May 26 04:50:51 2004 Subject: [Mp4-tech] H.264 Buffer analysis In-Reply-To: <45A1F95BB9D7D84FAB0A1EB4D67EEF96FAF3DD@is01ex01.ittiam.com> Message-ID: <20040526063557.95338.qmail@web11506.mail.yahoo.com> Hi,In H.264, for doing the CPB buffer analysis,We require the VUI information, the buffering period and picture timing SEI messages to be present in the stream.If this information is present then we can do the required CPB buffer analysis as given in the specs.. Now if this information is not present in the stream ( which is the casefor approx. 95% of the test streams available), can there be any othermanner we can do the CPB buffer analysis using the coded information.Any ideas are welcome...RegardsYashwinderSriram Sethuraman wrote:Gary/Iain,We, Ittiam Systems (Pvt.) Ltd. (based in Bangalore, India),currently offer the following H.264 based solutions.1. H.264 Main Profile Decoder on TI DM642 - Demonstrated at the TI Developer's Conference, Houston (Feb 2004) - Integrated audio/video streaming player solution on the DM6422. MPEG-2 MP@ML to H.264 MP@L3 Transcoder - Evaluation kits will be available in June on PC and TI DM642 - Supports trans-scaling to multiple sub resolutions - To be demonstrated at ICME 2004Further information can be found on:http://www.ittiam.com/pages/products/h264-dec.htmhttp://www.ittiam.com/pages/products/h264-transcode.htmRegards,Sriram Sethuraman____________________________Senior Member of Technical StaffVideo & Imaging GroupIttiam Systems (Pvt.) Ltd.Bangalore, India____________________________-----Original Message-----From: Gary Sullivan [mailto:garysull@windows.microsoft.com]Sent: Thursday, May 13, 2024 12:18 AMTo: Iain Richardson; jvt-experts@mail.imtc.orgCc: mp4-tech@lists.mpegif.orgSubject: [Mp4-tech] RE: [jvt-experts] Companies with complete H.264/AVCsolutionsIain,See the attached powerpoint presentation (particularly slide number 2), which I am preparing as a contribution for the July meeting.Best Regards,-Gary Sullivan-----Original Message-----From: Iain Richardson [mailto:iainrichardson@ieee.org] Sent: Wednesday, May 12, 2024 3:36 AMTo: jvt-experts@mail.imtc.orgSubject: [jvt-experts] Companies with complete H.264/AVC solutions(sorry if you receive this via 2 lists) I'm updating my list of companies who offer H.264 solutions. Here's what I have at present: BT Exact DemoGraFX Envivio Equator MainConcept Moonlight Polycom Sand Video UBVideo Vanguard Software Solutions VideoLocus W&W Communications (and DSP Research) If your company has a working (!) H.264-compatible solution, please could you email me with brief details and I will add you to the list. I intend to publish the list on the vcodex site and include it in a forthcoming guide to H.264/AVC.Many thanks Iain Richardson i.g.richardson@rgu.ac.uk iainrichardson@ieee.org (preferred email for replies) HYPERLINK "www.vcodex.com"www.vcodex.com ---Outgoing mail is certified Virus Free.Checked by AVG anti-virus system (http://www.grisoft.com).Version: 6.0.673 / Virus Database: 435 - Release Date: 01/05/2024 ---The use of the jvt-experts list is intended only for the video coding standardization work conducted by the Joint Video Team (JVT) of ISO/IEC JTC1/SC29/WG11 (MPEG) and ITU-T SG16 Q.6 (VCEG)._______________________________________________NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have.Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php Chhikara --------------------------------- Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040525/8a75fad9/attachment.html From garysull windows.microsoft.com Wed May 26 01:54:31 2004 From: garysull windows.microsoft.com (Gary Sullivan) Date: Wed May 26 04:52:21 2004 Subject: [Mp4-tech] RE: H.264 Buffer analysis Message-ID: <91D7F2CEE3425A4A9D11311D09FCE24608D061A9@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> Skipped content of type multipart/alternative From PatrickSchuchardt gmx.de Wed May 26 12:31:09 2004 From: PatrickSchuchardt gmx.de (Patrick Schuchardt) Date: Wed May 26 08:07:37 2004 Subject: [Mp4-tech] using smil and xmt-o References: Message-ID: <10336.1085563869@www24.gmx.net> Hi @ all, I am working on 3D-mp4 scenes. I want to use XMT-A and -O. My sources are 3d studio max files. The one way is to export 3ds to vrml, convert to x3d and change manually to xmt-a (know anybody a better way?). But now I am searching for the other way: to export 3ds to xmt-o.Maybe with using smil.But I don't know how create SMIL-Files from 3ds files. Thanks for your help -- "Sie haben neue Mails!" - Die GMX Toolbar informiert Sie beim Surfen! Jetzt aktivieren unter http://www.gmx.net/info From y_chhikara yahoo.com Wed May 26 05:34:02 2004 From: y_chhikara yahoo.com (yashwinder chhikara) Date: Wed May 26 08:09:55 2004 Subject: [Mp4-tech] RE: H.264 Buffer analysis In-Reply-To: <91D7F2CEE3425A4A9D11311D09FCE24608D061A9@WIN-MSG-10.wingroup.windeploy.ntdev.microsoft.com> Message-ID: <20040526113402.47071.qmail@web11503.mail.yahoo.com> Hi Gary, You are absolutely right in saying that the VUI and timing information should be available to test the conformance, either they may be presesnt in the stream or that information should be available by some other means which are not defined. So i wanted to know is there any work going on in this direction of defining these other means from where we can get this information and how? If that information is not available can we check the conformance using any algo. which is defined? Could you give any pointers to the tool youmention which, has the capablity of scanning a stream and computing the convex hull of the curve relating the necessary buffer capacity and bit rate for decoding the stream. Thanks Yashwinder Gary Sullivan wrote: There are several issues here. There is no requirement that the VUI and timing information be in the stream. There is, however, a requirement that such information be available in order to test the conformance of a stream. There is a difference between having the information be "present" and having it "in the stream". Any way that the information can be provided is fine as far as the standard is concerned. One such way, for example, is for the timing to be known to be locked to a particular system frame rate. The timing information can be provided by the system rather than within the video syntax. Many system designs would carry such information -- video is almost never used all by itself without audio and a system to synchronize everything. Streams without that information provided one way or another could be useful for testing output-order conformance to the standard for decoders, but not for testing output timing conformance to the standard. We have also determined that it is ordinarily conceptually possible to construct timing information that can be associated with any stream that has that information missing, and to do so in a way that makes the stream conform, unless the stream contains obvious fundamental problems such as a hugely excessive number of bits used for an individual picture. Some time ago, we had a tool that was part of the reference software package that was capable of scanning a stream and computing the convex hull of the curve relating the necessary buffer capacity and bit rate for decoding the stream. I think that tool became obsolete as minor details were later changed, but the concept remains valid. It would be nice if we could resurrect that kind of capability. Probably all or nearly all of the streams that have been provided without that information are actually designed to be conforming with a typical fixed frame rate such as 30 or 15 or 10 or 25 frames per second. Ideally, we should really have that data for all of the streams. Best Regards, Gary Sullivan --------------------------------- From: yashwinder chhikara [mailto:y_chhikara@yahoo.com] Sent: Tue 5/25/2004 11:35 PM To: Sriram Sethuraman; Gary Sullivan; Iain Richardson; jvt-experts@mail.imtc.org Cc: mp4-tech@lists.mpegif.org Subject: H.264 Buffer analysis Hi, In H.264, for doing the CPB buffer analysis, We require the VUI information, the buffering period and picture timing SEI messages to be present in the stream. If this information is present then we can do the required CPB buffer analysis as given in the specs.. Now if this information is not present in the stream ( which is the case for approx. 95% of the test streams available), can there be any other manner we can do the CPB buffer analysis using the coded information. Any ideas are welcome... Regards Yashwinder --------------------------------- Do you Yahoo!? Friends. Fun. Try the all-new Yahoo! Messenger -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040526/79dc3b52/attachment-0001.html From mikael sevenier.com Wed May 26 10:52:50 2004 From: mikael sevenier.com (Mikael Bourges-Sevenier) Date: Wed May 26 14:12:18 2004 Subject: [Mp4-tech] using smil and xmt-o In-Reply-To: <10336.1085563869@www24.gmx.net> Message-ID: Dear Patrick, The other way is to rewrite the VRML exporter of 3DSMax and export directly in XMT-A. If you do such an exporter, please share it with the community. Thanks, Mike > -----Original Message----- > From: mp4-tech-bounces@lists.mpegif.org > [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of > Patrick Schuchardt > Sent: Wednesday, May 26, 2024 2:31 AM > To: mp4-tech@lists.mpegif.org > Subject: [Mp4-tech] using smil and xmt-o > > Hi @ all, > > I am working on 3D-mp4 scenes. I want to use XMT-A and -O. My > sources are 3d studio max files. > The one way is to export 3ds to vrml, convert to x3d and > change manually to xmt-a (know anybody a better way?). > > But now I am searching for the other way: to export 3ds to > xmt-o.Maybe with using smil.But I don't know how create > SMIL-Files from 3ds files. > > Thanks for your help > > -- > "Sie haben neue Mails!" - Die GMX Toolbar informiert Sie beim Surfen! > Jetzt aktivieren unter http://www.gmx.net/info > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include > [audio, [video], [systems], [general] or another apppropriate > identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust > guidelines found at > http://www.mpegif.org/public/documents/vault/mp-out-30042-Anti > trust.php > From h.karim eim.surrey.ac.uk Wed May 26 19:43:36 2004 From: h.karim eim.surrey.ac.uk (Hezerul Abdul Karim) Date: Wed May 26 14:15:11 2004 Subject: [Mp4-tech][video] binary mask file in MAC In-Reply-To: <10336.1085563869@www24.gmx.net> References: <10336.1085563869@www24.gmx.net> Message-ID: Dear MP4 expert, Why in MPEG4 MAC (Multiple Auxialiary Compoment) (C++) version we need to supply the binary mask information to encode the alpha channels? Thank you, Hezerul Abdul Karim CCSR, University of Surrey, UK From sathyavratha acmet.com Thu May 27 12:19:31 2004 From: sathyavratha acmet.com (Sathyavratha) Date: Thu May 27 03:20:14 2004 Subject: [Mp4-tech] any Latest test vectors available for MPEG4 Message-ID: <000501c443ae$62a4e240$c700a8c0@sathyavratha> Dear friends, I'm working on MPEG4 for TMS3206414 processor, please let me know the latest test vectors available for MPEG4. Regards Sathyavratha System Engineer Acme Technologies Pvt Ltd Noida, India -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040527/37f06803/attachment.html From brata_cucse yahoo.co.in Thu May 27 08:26:10 2004 From: brata_cucse yahoo.co.in (=?iso-8859-1?q?A=20C?=) Date: Thu May 27 03:22:40 2004 Subject: [Mp4-tech] [MPEG4][Audio] Number of windows in a raw data block (AAC) Message-ID: <20040527062610.73774.qmail@web8301.mail.in.yahoo.com> Hi According to the spec one raw data block contains audio data for a time period of 1024 samples. That means when decoded we can get 1024 samples per output channel. Questions: 1. Now as the window size is either 1024 or 128 depending on long/short does that mean for each channel per raw data block there can be either ONLY_LONG or LONG_START or LONG_STOP or EIGHT_SHORT windows ? Regards brata Yahoo! India Matrimony: Find your partner online. -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040527/7f16c896/attachment.html From martasxe hotmail.com Thu May 27 11:17:55 2004 From: martasxe hotmail.com (marta martinez) Date: Thu May 27 05:35:48 2004 Subject: [Mp4-tech] scalability and sprites Message-ID: Hi, i'm studying mpeg4 codification to use mp4 files for streaming. i want to know if there are any RFC that define how transmit the enhanced layer and if there are any player that accept it. I'm searching open source programs, but I don't find - i use mpeg4IP, but the player don't support scalability. another question about coding with sprites. i want to use mpeg4IP, or whatever open source software, to coding files with sprites. i need a source file and a point file. I want to know how can be this point file, and if anyone have a example thanx marta _________________________________________________________________ ?Est?s pensando en cambiar de coche? Todas los modelos de serie y extras en MSN Motor. http://motor.msn.es/researchcentre/ From brata_cucse yahoo.co.in Thu May 27 11:10:22 2004 From: brata_cucse yahoo.co.in (=?iso-8859-1?q?A=20C?=) Date: Thu May 27 05:38:19 2004 Subject: [Mp4-tech] [MPEG4][Audio] Handling erroneous aac streams Message-ID: <20040527091022.56987.qmail@web8309.mail.in.yahoo.com> Hi 1. Is it possible to have any sync point within an aac audio stream? My objective is to jump to the next Raw data block in case I encounter some errors in the current RDB. 2. For an audio stream does it make sense to allow an user to play RDB by RDB? In any case for playing an RDB we'll need to have the previous RDB. Regards brata Yahoo! India Matrimony: Find your partner online. -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040527/a439560c/attachment.html From tihohod mail.ru Thu May 27 21:19:20 2004 From: tihohod mail.ru (Stanislav Tihohod) Date: Thu May 27 12:42:59 2004 Subject: [Mp4-tech] New version of YUV Player Deluxe Message-ID: <8433273875.20040527201920@mail.ru> Hello mp4-tech, New version of YUV Player Deluxe is available on www.yuvplayer.com. Several new features was added, and the interface was improved. -- Best regards, Stanislav mailto:tihohod@mail.ru From vsathe multiratesystems.com Thu May 27 14:28:30 2004 From: vsathe multiratesystems.com (Vinay Sathe) Date: Thu May 27 18:39:04 2004 Subject: [video] RE: [Mp4-tech] New version of YUV Player Deluxe In-Reply-To: <8433273875.20040527201920@mail.ru> Message-ID: <40A02BAF00BACF8B@mta5.wss.scd.yahoo.com> (added by postmaster@mail.san.yahoo.com) No offense intended to the team at Yuvplayer. Could someone with experience in using this tool share their comments - either privately or to this reflector? Thank you. Vinay -----Original Message----- From: mp4-tech-bounces@lists.mpegif.org [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of Stanislav Tihohod Sent: Thursday, May 27, 2024 9:19 AM To: mp4-tech@lists.mpegif.org Subject: [Mp4-tech] New version of YUV Player Deluxe Hello mp4-tech, New version of YUV Player Deluxe is available on www.yuvplayer.com. Several new features was added, and the interface was improved. -- Best regards, Stanislav mailto:tihohod@mail.ru From h.karim eim.surrey.ac.uk Fri May 28 10:17:18 2004 From: h.karim eim.surrey.ac.uk (Hezerul Abdul Karim) Date: Fri May 28 11:02:06 2004 Subject: [video] RE: [Mp4-tech] New version of YUV Player Deluxe In-Reply-To: <40A02BAF00BACF8B@mta5.wss.scd.yahoo.com> (added by postmaster@mail.san.yahoo.com) References: <40A02BAF00BACF8B@mta5.wss.scd.yahoo.com> (added by postmaster@mail.san.yahoo.com) Message-ID: Could not play it on windows NT. Error message Entry point not found. TQ Hezerul Abdul Karim University of Surrey, UK On Thu, 27 May 2004, Vinay Sathe wrote: > No offense intended to the team at Yuvplayer. Could someone with experience > in using this tool share their comments - either privately or to this > reflector? > > Thank you. > Vinay > > -----Original Message----- > From: mp4-tech-bounces@lists.mpegif.org > [mailto:mp4-tech-bounces@lists.mpegif.org] On Behalf Of Stanislav Tihohod > Sent: Thursday, May 27, 2024 9:19 AM > To: mp4-tech@lists.mpegif.org > Subject: [Mp4-tech] New version of YUV Player Deluxe > > Hello mp4-tech, > > New version of YUV Player Deluxe is available on www.yuvplayer.com. > Several new features was added, and the interface was improved. > > -- > Best regards, > Stanislav mailto:tihohod@mail.ru > > > _______________________________________________ > NOTE: Please use clear subject lines for your posts. Include [audio, [video], [systems], [general] or another apppropriate identifier to indicate the type of question you have. > > Note: Conduct on the mailing list is subject to the Antitrust guidelines found at http://www.mpegif.org/public/documents/vault/mp-out-30042-Antitrust.php > From ranzhao arcsoft.com.cn Fri May 28 17:38:43 2004 From: ranzhao arcsoft.com.cn (ranzhao) Date: Fri May 28 11:02:12 2004 Subject: [Mp4-tech] where can download MP4 files Message-ID: <005101c4448f$2f6a8a60$6b7410ac@excha> Dear All Could anyone please tell me where can download MP4 files. Thanks Best Regards, zhaoran -------------- next part -------------- An HTML attachment was scrubbed... URL: /pipermail/mp4-tech/attachments/20040528/7f074d7e/attachment.html From srq ieee.org Fri May 28 10:30:06 2004 From: srq ieee.org (S. R. Quackenbush) Date: Fri May 28 11:02:19 2004 Subject: [Mp4-tech] [MPEG4][Audio] Handling erroneous aac streams In-Reply-To: <20040527091022.56987.qmail@web8309.mail.in.yahoo.com> Message-ID: Dear Brata, If you are reading the AAC stream from an MPEG-4 file then you know the AccessUnit framing and one AccessUnit is typically one AAC raw data block. Since each AAC raw data block is decodable by itself (subject to boundary overlap-add errors), you can skip forward and backward as you wish. If you really have an MPEG-2 AAC bitstream, which is a sequence of AAC raw data blocks, you have to parse every block to know when the next starts. Sorry! Best, Schuyler --- Schuyler Quackenbush Chair, MPEG Audio Subgroup CEO, Audio Research Labs 336 Park Ave, Suite 200, Scotch Plains, NJ 07076 phone: 908 490 0700 srq@audioresearchlabs.com fax: 908 842 9151 www.audioresearchlabs.com -----Original Message----- From: mp4-tech-bounces@lists.mpegif.org [mailto:mp4-tech-bounces@lists.mpegif.org]On Behalf Of A C Sent: Thursday, May 27, 2024 5:10 AM To: mp4-tech@lists.mpegif.org Subject: [Mp4-tech] [MPEG4][Audio] Handling erroneous aac streams Hi 1. Is it possible to have any sync point within an aac audio stream? My objective is to jump to the next Raw data block in case I encounter some errors in the current RDB. 2. For an audio stream does it make sense to allow an user to play RDB by RDB? In any case for playing an RDB we'll need to have the previous RDB. Regards brata Yahoo! India Matrimony: Find your partner online. From srq ieee.org Fri May 28 10:30:06 2004 From: srq ieee.org (S. R. Quackenbush) Date: Fri May 28 11:02:25 2004 Subject: [Mp4-tech] [MPEG4][Audio] Number of windows in a raw data block(AAC) In-Reply-To: <20040527062610.73774.qmail@web8301.mail.in.yahoo.com> Message-ID: Each mono or stereo pair has a window-type per block, which can be one of: ONLY_LONG or LONG_START or LONG_STOP or EIGHT_SHORT Schuyler --- Dr. Schuyler Quackenbush, Audio Research Labs 336 Park Ave, Suite 200, Scotch Plains, NJ 07076 office: 908 490 0700 srq@audioresearchlabs.com mobile: 908 612 9423 fax: 908 842 9151 www.audioresearchlabs.com -----Original Message----- From: mp4-tech-bounces@lists.mpegif.org [mailto:mp4-tech-bounces@lists.mpegif.org]On Behalf Of A C Sent: Thursday, May 27, 2024 2:26 AM To: mp4-tech@lists.mpegif.org Subject: [Mp4-tech] [MPEG4][Audio] Number of windows in a raw data block(AAC) Hi According to the spec one raw data block contains audio data for a time period of 1024 samples. That means when decoded we can get 1024 samples per output channel. Questions: 1. Now as the window size is either 1024 or 128 depending on long/short does that mean for each channel per raw data block there can be either ONLY_LONG or LONG_START or LONG_STOP or EIGHT_SHORT windows ? Regards brata Yahoo! India Matrimony: Find your partner online. From stefan.goor ucd.ie Fri May 28 16:09:29 2004 From: stefan.goor ucd.ie (Stefan A. Goor) Date: Fri May 28 11:02:31 2004 Subject: [Mp4-tech] Parsing GOV Headers - Urgent Message-ID: Hey All, Please help if you can, I really need to resolve this problem as soon as possible. I am receiving MPEG-4 vidoe streams in RTP and I am trying to parse out the individual VOPs using the start codes in the video content and RTP marker bit to determine the end of the VOPS. This works fine until I receive a packet that contains a GOV i.e. startcode 0x1b3, as I can't seem to parse out the I frame from this packet. I have tried parsing ahead in the packet payload to find the start of the I frame i.e. searching for vop_start_code 0x1b6, but I couldn't find any. The next packet that I receive is a P VOP so I assume the I VOP is contained in it the GOV packet somewhere but how do I parse it out? Thanks, Stefan From sharon_silverman971 yahoo.com Fri May 28 12:47:32 2004 From: sharon_silverman971 yahoo.com (Sharon Silverman) Date: Sat May 29 03:28:00 2004 Subject: [Mp4-tech] [Video] (Static) Compliance testing of ISO/IEC 14496 video bitstreams Message-ID: <20040528184732.97677.qmail@web90110.mail.scd.yahoo.com> Hi MP4-Tech members, I need a clarification regarding the procedure for (static) compliance testing of ISO/IEC 14496 video bitstreams. 14496-4 states in Section 4.5.4 (Implementation of the static test) that one needs to decode the given video bitstream by the decoder under test (DUT) first. Then, this video bitstream is decoded by the reference decoder with the restriction that the frame buffers of the reference decoder are initialized with the reconstructed samples captured from the DUT that correspond to those reference frames (the so called "frame buffer intercept method"). Now the reference decoder can not be used straight away for this purpose, as it is in its current form. But then the question is, who is supposed to make the necessary modifications to the reference decoder to implement this "frame buffer intercept method" ? If leave it to every implementer of a 14496-2 decoder, we are intrinsically making it mandatory for him to understand the reference decoder to an extent he actually may need not to. This is clearly duplication of work, not to mention the bugs which may creep in when every developer tries to modify the reference decoder for static conformance testing. Would it not be more sensible if there is a version of reference decoder provided that provides a clear and clean interface for "frame buffer intercept method" ? This helps everyone, and the testing procedure gets further standardized. I look forward to comments/pointers. Thanks, Sharon __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com From raghu vidiator.com Fri May 28 14:14:43 2004 From: raghu vidiator.com (Raaghu Nagaraj) Date: Sat May 29 03:30:25 2004 Subject: [Mp4-tech] Companies with complete H.264/AVC solutions Message-ID: <787ED0EC136B854DB341E7662D666CD66F4529@bels002.mediator.com> Skipped content of type multipart/alternative-------------- next part -------------- A non-text attachment was scrubbed... Name: VidiatorH264.ppt Type: application/vnd.ms-powerpoint Size: 34304 bytes Desc: VidiatorH264.ppt Url : /pipermail/mp4-tech/attachments/20040528/303a25ed/VidiatorH264-0001.bin From a_p_21 indiainfo.com Mon May 31 15:38:12 2004 From: a_p_21 indiainfo.com (anuradha prabhu) Date: Mon May 31 10:09:14 2004 Subject: [Mp4-tech] about AAC + streams Message-ID: <20040531090812.37CF14160BD@ws5-2.us4.outblaze.com> Hello !! Can anyone tell me about the utility that will convert AAC , AAC + raw encoded streams to ADTS , ADIF format streams .? I know that there is one utility MP4creator . But I am not getting the path of that utility Regards Anuradha -- ______________________________________________ IndiaInfo Mail - the free e-mail service with a difference! www.indiainfo.com Check out our value-added Premium features, such as an extra 20MB for mail storage, POP3, e-mail forwarding, and ads-free mailboxes! Powered by Outblaze