[FFmpeg-devel] [PATCH] av_find_best_stream

[Michael Niedermayer]

On Wed, Dec 22, 2010 at 06:45:01PM +0100, Nicolas George wrote:
[...]
> diff --git a/libavformat/avformat.h b/libavformat/avformat.h
> index 3079b38..e4895fe 100644
> --- a/libavformat/avformat.h
> +++ b/libavformat/avformat.h
> @@ -1140,6 +1140,34 @@ AVFormatContext *avformat_alloc_context(void);
>  int av_find_stream_info(AVFormatContext *ic);
>  
>  /**
> + * Find the "best" stream in the file.
> + * The best stream is determined according to various heuristics as the most
> + * likely to be what the user expects.
> + * If the decoder parameter is non-NULL, av_find_best_stream will find the
> + * default decoder for the stream's codec; streams for which no decoder can
> + * be found are ignored.
> + *
> + * @param ic                media file handle
> + * @param type              stream type: video, audio, subtitles, etc.
> + * @param wanted_stream_nb  user-requested stream number,
> + *                          or -1 for automatic selection
> + * @param decoder_ret       if non-NULL, returns the decoder for the
> + *                          selected stream
> + * @param flags             flags; none are currently defined
> + * @return  the non-negative stream number in case of success,
> + *          AVERROR_STREAM_NOT_FOUND if no stream with the requested type
> + *          could be found,
> + *          AVERROR_DECODER_NOT_FOUND if streams were found but no decoder
> + * @note  If av_find_best_stream returns successfully and decoder_ret is not
> + *        NULL, then *decoder_ret is guaranteed to be set to a valid AVCodec.
> + */
> +int av_find_best_stream(AVFormatContext *ic,
> +                        enum AVMediaType type,
> +                        int user,
> +                        AVCodec **decoder_ret,
> +                        int flags);

This API doesnt work because we want streams from the same program not a video
stream from one channel and a audio stream from another.

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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