[Asterisk-video] if2 bit stuffing in app_h324m

[Klaus Darilion]

Sergio Garcia Murillo schrieb:
> From: "Klaus Darilion" <klaus.mailinglists at pernau.at>
>>> The test cases should be the following:
>>>
>>> 1.- Play mp4 file to videophone
>>> mp4 generated mpeg4ip and pcm2mp4 (h264-2000/pmcu)
>> h264-2000 or h263-2000?
> 
> ups, typo, I meant h263-2000 :)
> 
>> btw: eyebeam lets me choose: h263 or h263+(1998) and h264(low end) and
>> h264(high end).
>>
>> Does somebody knows the differences?
>> Which one should I use for the tests?
> 
> h263 stands for h263-1996 (rfc 2190) and h263+ is h263-1998/2000 (rfc 2429).

Does this also change the encoding itself or only the hint track e.g:

mp4info test.3gp
mp4info version 1.5.0.1
test.3gp:
Track   Type    Info
201     video   H.263, 253.240 secs, 34 kbps, 176x144 @ 9.496920 fps
65335   hint    Payload H263-2000 for track 201
101     audio   AMR, 253.260 secs, 13 kbps, 8000 Hz
65435   hint    Payload AMR for track 101
1       od      Object Descriptors
2       scene   BIFS

the hint track is h263-2000. Thus, is the video stream now h263 or h263+ 
- or is the encoding the same?

regards
klaus



> We should test the three of them, but I think that the priority is h263-1998
> as
> in theory we can handle it correctly, h263-1996 after that because we can
> only record
> it and no mp4 creator can hint it, and last h264, that we could try to
> support, at least
> saving all the payload into the hint track.




> 
> BR
> Sergio
> 
> 
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