[Ffmpeg-devel] redetect audioformat in mpeg-ts
Wed Jul 6 10:11:36 CEST 2005
Patrick Fischer said:
> In mpeg-ts it is possible to change the AudioFormat.
> For example from Strereo to Mono.
> How can I detect the changeings?
> I think it is not a practical idea to make an av_find_stream_info(...)
> at every Frame.
> I need to know the point of the change-over.
> Anybody an idear?
MPEG-TS doesn't (usually) contain any more detailed information than the
codec used. It's up to your mpeg audio decoder to detect a change, and do
something sensible. It's probably not a very good idea to be changing audio
parameters midstream, as most players will not cope with it. I'm not sure
whether it's (dis)allowed by any standards.
mru at inprovide.com
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