[Live-devel] question about parseSPropParameterSets()

[James Zhang]

Hello everyone

Thanks for everybody's suggestion.

Looks i have made it start to do something instead on no frame, fail to
decode. I m keep getting something like this. Is it because of i m putting
the wrong NAL units to decoder?

My nal structure is
0x1sps0x1pps


*[h264 @ 0x700f400]slice type too large (2) at 0 0*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]non-existing PPS 0 referenced*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]B picture before any references, skipping*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]B picture before any references, skipping*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]B picture before any references, skipping*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]B picture before any references, skipping*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]slice type too large (3) at 0 0*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]non-existing PPS 0 referenced*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]B picture before any references, skipping*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]B picture before any references, skipping*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]slice type too large (3) at 0 0*

*[h264 @ 0x700f400]decode_slice_header error*

*[h264 @ 0x700f400]AVC: nal size 0*

*[h264 @ 0x700f400]AVC: nal size 8459*

Thank you very much
Best regards

James


On 31 January 2012 22:05, Jon Burgess <jkburges at gmail.com> wrote:

> >
>> >  SPropRecord * data to a NSData and send into extradata to decode?
>>
>> I don't know what a "NSData" is (it's apparently something outside our
>> libraries), but I hope it should be obvious from the implementation of the
>> function in "liveMedia/H264VideoRTPSource.cpp" how it works.
>>
>>
> "NSData" is basically a glorified byte buffer available on cocoa/Mac/iOS.
>
> Cheers,
> Jon Burgess
>
>
>
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>


-- 
James Zhang

BE (Hons)
Department of Electrical and Computer Engineering
THE UNIVERSITY OF AUCKLAND
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