[Mp4-tech] Add som errors in H.264 bitstream

[Gary Sullivan]

Judy et al,
To do a good test of error/loss robustness characteristics takes a lot of work.  The encoder needs to be optimized to produce a robust bitstream.  The system-level model for what happens to the bitstream should be set up to be appropriate for the intended application environment.  And the decoder should be designed to have extra capabilities (not specified in the standard) to cope with bad bitstream data.  
The standard is designed to provide features that can be used by encoders and decoders to enable robustness to errors and data losses.  However, it does not require encoders or decoders to use those features well.
The standard only specifies how decoders should decode bitstreams that are correct and error-free.  How a decoder copes with such problems is a matter of design by the individual implementer.
A number of research papers have been published on this topic.  One of them is entitled 'Error Resiliency Schemes in H.264/AVC', and will appear in a Special issue of Elsevier JVCI on H.264/AVC in June-Aug. 2005.  The paper is available at www.clarkson.edu/~skumar (Go to Publications sections; click on Paper #7).  I suggest to also look for papers by Thomas Stockhammer.  I published one with him a couple of years ago, and I'm aware of at least one more that he has written on the topic (with Miska Hannuksela), although it may not yet be published.  I am sure there are also many other relevant publications on the topic by various authors.
Best Regards,
Gary Sullivan
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	From: mp4-tech-bounces lists.mpegif.org [mailto:mp4-tech-bounces lists.mpegif.org] On Behalf Of ??
	Sent: Thursday, January 20, 2024 8:39 PM
	To: mp4-tech lists.mpegif.org
	Subject: [Mp4-tech] Add som errors in H.264 bitstream
	Hello.....
	I want to add some errors in the encoding bitstream,and see the decoder result.Could anyone help me to do this??
	thanks a lot
	best regards
	Judy
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