[Libav-user] Find audio frames headers within bitstream

[Vasiliy Volkov]

ср, 7 нояб. 2018 г. в 14:14, Paul B Mahol <onemda at gmail.com>:

> On 11/7/18, Vasiliy Volkov <volk.vasiliy at gmail.com> wrote:
> > Hi, again,
> >
> > we've encountered an issue with decoding audio streams. Sometimes audio
> > codec headers are not aligned to PES packets (we work with mpegts). So
> when
> > we try to decode such streams libav decoder fails, because he can't find
> > where to start decoding process. For such task libav has parsers, which
> > need to be used for correct decoding arbitrary bitstreams: first you find
> > position of header, next send to decoder. We've find that there are
> exists
> > private api for such task: libavcodec/mpegaudiodecheader.h but it's
> > private, and using it in our project is not very clean way, and all
> public
> > API's requires to use avio* methods which we don't like to use.
> >
> > Is there any other of private API way to find audio frames headers
> > positions?
> >
>
> What is wrong with using parsers?
>

Parsers are private api and when we compile libav they are not included,
so we need to copy header file into our project and then access -- it's not
good way.
So what is the proper way?


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