R: [Mp4-tech] Mp4 file having h264 as video

[Franceschini Guido]

There might be problem with the coding of AVCsizeLength
Guido
________________________________
Da: mp4-tech-bounces lists.mpegif.org
[mailto:mp4-tech-bounces lists.mpegif.org] Per conto di INDERPAL SINGH
GANDHI
Inviato: Wednesday, December 21, 2023 10:32 AM
A: mp4-tech lists.mpegif.org
Oggetto: [Mp4-tech] Mp4 file having h264 as video
Dear experts,
I have created one mp4 file which has the H.264 as the video. I have
just modified the 'stsd' entry for 'avc1' under 'stbl' according to the
ISO/IEC 14996-15. Rest all the entries, like 'sdtp', 'sbgp' etc, were
optional so i did not create those. Am saving the AVC Sample to 'mdat'
as recommended by 14996-15 too.
Now the quicktime player 7.0.3, which supports the h.264, is not able to
play this file. The quictime's window opens but all the buttons (play,
pause, forward etc )remain inactive.
And when i play it with VLC Player version 0.8.4, It only plays the
first frame and after that it crashes. The encoded bit stream is correct
coz if i just give the encoded bitstream (test.h264) to vlc player, it
plays fine.
My file has only 5 frames. First is the I frame and the rest P.
Number of slices per picture is 1. It has 8 bytes of SPS and 4 bytes of
PPS header.
SPS = 67 42 00 1E B6 82 C4 C4
PPS = 68 CE 3C 80
I have attached my mp4 file with this mail.
Please have a look into the bitstream. I am not able to pinpoint the
problem. 
It will be of great help if you could suggest me the needful.
Thanks in Advance
Inder 
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