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-rw-r--r--libavformat/isom.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/libavformat/isom.c b/libavformat/isom.c
index b34398b4f3..d768c32b63 100644
--- a/libavformat/isom.c
+++ b/libavformat/isom.c
@@ -441,6 +441,7 @@ static const AVCodecTag mp4_audio_types[] = {
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
{
+ enum AVCodecID codec_id;
int len, tag;
int ret;
int object_type_id = avio_r8(pb);
@@ -454,7 +455,9 @@ int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext
return -1;
}
- st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
+ codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
+ if (codec_id)
+ st->codec->codec_id= codec_id;
av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
len = ff_mp4_read_descr(fc, pb, &tag);
if (tag == MP4DecSpecificDescrTag) {