Re: [MMUSIC] Remove msid-semantic

[Magnus Westerlund <[e-mail]>]

Martin Thomson skrev den 2015-04-21 19:05:
> On 21 April 2015 at 02:31, Magnus Westerlund
> <[e-mail]> wrote:
>> However, in most cases one can't really play out
>> all the buffered media, unless one can play it at faster than real-time.
> 
> 
> I never imagined buffering being any more than a few milliseconds or
> tens of milliseconds.  That might just be a case of allowing the audio
> jitter buffer to fill.
> 

Well, that is fine for audio codecs which can generate good quality
audio from any frame. But, for a video codec with its dependency on
intra frames, then not buffering, in case the signalling arrives after
the media, then discarding just the first packet will result in quality
degradation or extra delay.  The actual situation will be the same as a
packet loss situation (without possibility to repair) and recovery form
it, most likely through a FIR request.

To be clear this only occurs in the situation where the signalling for a
new track arrives after the actual delivery.

Cheers

Magnus Westerlund

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