[FFmpeg-devel] Patch for chained OGG files

[Måns Rullgård]

Cyril Zorin <cyril.zorin at gmail.com> writes:

> Hi!
>
> Attached is a patch that lets ffmpeg handle chained OGG files, often used in
> internet radio streams. Let me know if there's anything to change.
>
> +static int
> +ogg_read_packet (AVFormatContext * s, AVPacket * pkt)
> +{
> +  const int result = ogg_read_packet_internal(s, pkt);
> +  if (result >= 0)
> +    return result;
> +
> +  ogg_read_close(s);
> +  memset(s->priv_data, 0, sizeof(struct ogg));
> +  if (ogg_read_header(s, 0) < 0)
> +    return AVERROR(EIO);
> +
> +  return ogg_read_packet_internal(s, pkt);
> +}

This won't work if the parameters of the new set of streams don't
exactly match the old.  Libavformat simply doesn't support randomly
changing streams halfway through a file.

-- 
M?ns Rullg?rd
mans at mansr.com