[FFmpeg-cvslog] avformat/matroskadec: identify SMI as SVQ3

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Sun Jan 19 20:13:38 2014 +0100| [9d13432a90979de8e21bff4641c1da3dbac02584] | committer: Michael Niedermayer

avformat/matroskadec: identify SMI as SVQ3

Fixes part of Ticket3256

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9d13432a90979de8e21bff4641c1da3dbac02584
---

 libavformat/matroskadec.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavformat/matroskadec.c b/libavformat/matroskadec.c
index 19e0e2e..f91688b 100644
--- a/libavformat/matroskadec.c
+++ b/libavformat/matroskadec.c
@@ -1732,7 +1732,7 @@ static int matroska_read_header(AVFormatContext *s)
                 codec_id = ff_codec_get_id(ff_codec_movaudio_tags, fourcc);
             }
         } else if (!strcmp(track->codec_id, "V_QUICKTIME")
-                   && (track->codec_priv.size >= 86)
+                   && (track->codec_priv.size >= 21)
                    && (track->codec_priv.data != NULL)) {
             fourcc = AV_RL32(track->codec_priv.data + 4);
             codec_id = ff_codec_get_id(ff_codec_movvideo_tags, fourcc);
@@ -1740,6 +1740,8 @@ static int matroska_read_header(AVFormatContext *s)
                 fourcc = AV_RL32(track->codec_priv.data);
                 codec_id = ff_codec_get_id(ff_codec_movvideo_tags, fourcc);
             }
+            if (codec_id == AV_CODEC_ID_NONE && AV_RL32(track->codec_priv.data+4) == AV_RL32("SMI "))
+                codec_id = AV_CODEC_ID_SVQ3;
         } else if (codec_id == AV_CODEC_ID_PCM_S16BE) {
             switch (track->audio.bitdepth) {
             case  8:  codec_id = AV_CODEC_ID_PCM_U8;     break;