Allow AC-3 parser to modify codec_id.

Patch by Joakim Plate (elupus A ecce D se).

Originally committed as revision 17447 to svn://svn.ffmpeg.org/ffmpeg/trunk

3 files changed, 8 insertions, 0 deletions

diff --git a/libavcodec/aac_ac3_parser.c b/libavcodec/aac_ac3_parser.c
index fedabdf815..ab3269f2db 100644
--- a/libavcodec/aac_ac3_parser.c
+++ b/libavcodec/aac_ac3_parser.c
@@ -72,6 +72,9 @@ get_next:
 
     /* update codec info */
     avctx->sample_rate = s->sample_rate;
+    if(s->codec_id)
+        avctx->codec_id = s->codec_id;
+
     /* allow downmixing to stereo (or mono for AC-3) */
     if(avctx->request_channels > 0 &&
             avctx->request_channels < s->channels &&
diff --git a/libavcodec/aac_ac3_parser.h b/libavcodec/aac_ac3_parser.h
index c4b81a86c6..04fd8f1974 100644
--- a/libavcodec/aac_ac3_parser.h
+++ b/libavcodec/aac_ac3_parser.h
@@ -53,6 +53,7 @@ typedef struct AACAC3ParseContext {
     uint64_t state;
 
     int need_next_header;
+    enum CodecID codec_id;
 } AACAC3ParseContext;
 
 int ff_aac_ac3_parse(AVCodecParserContext *s1,
diff --git a/libavcodec/ac3_parser.c b/libavcodec/ac3_parser.c
index 63c0a48c3a..e78deb20eb 100644
--- a/libavcodec/ac3_parser.c
+++ b/libavcodec/ac3_parser.c
@@ -175,6 +175,10 @@ static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
     hdr_info->bit_rate = hdr.bit_rate;
     hdr_info->channels = hdr.channels;
     hdr_info->samples = AC3_FRAME_SIZE;
+    if(hdr.bitstream_id>10)
+        hdr_info->codec_id = CODEC_ID_EAC3;
+    else
+        hdr_info->codec_id = CODEC_ID_AC3;
 
     *need_next_header = (hdr.frame_type != EAC3_FRAME_TYPE_AC3_CONVERT);
     *new_frame_start  = (hdr.frame_type != EAC3_FRAME_TYPE_DEPENDENT);