On Fri, Mar 30, 2018 at 06:46:06PM +0200, Paul B Mahol wrote:
> Fixes #4889.
>
> Signed-off-by: Paul B Mahol <one...@gmail.com>
> ---
> libavformat/mpeg.c | 27 +++++++++++++++++++--------
> 1 file changed, 19 insertions(+), 8 deletions(-)
>
> diff --git a/libavformat/mpeg.c b/libavformat/mpeg.c
> index 69d4a9d8ac..f6e3439e68 100644
> --- a/libavformat/mpeg.c
> +++ b/libavformat/mpeg.c
> @@ -128,6 +128,7 @@ typedef struct MpegDemuxContext {
> int sofdec;
> int dvd;
> int imkh_cctv;
> + int raw_ac3;
> #if CONFIG_VOBSUB_DEMUXER
> AVFormatContext *sub_ctx;
> FFDemuxSubtitlesQueue q[32];
> @@ -443,7 +444,15 @@ redo:
>
> if (startcode == PRIVATE_STREAM_1) {
> startcode = avio_r8(s->pb);
> - len--;
> + if (avio_r8(s->pb) == 0x77 && startcode == 0x0b) {
> + startcode = 0x80;
> + m->raw_ac3 = 1;
> + avio_skip(s->pb, -2);
> + } else {
> + m->raw_ac3 = 0;
> + avio_skip(s->pb, -1);I think these seekbacks are not safe, they could fail once every few thousand times depending on buffer positions if the underlaying input is not seekable a ffio_ensure_seekback() call should avoid this thats unless iam missing something ... [...] thx -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Frequently ignored answer#1 FFmpeg bugs should be sent to our bugtracker. User questions about the command line tools should be sent to the ffmpeg-user ML. And questions about how to use libav* should be sent to the libav-user ML.
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