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Allow AC-3 parser to modify codec_id.

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

Originally committed as revision 17447 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Joakim Plate 2009-02-19 00:28:19 +00:00 committed by Justin Ruggles
parent 3899eb2f65
commit 4cff8dc88f
3 changed files with 8 additions and 0 deletions
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3
libavcodec/aac_ac3_parser.c
View File

@ -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 &&

1
libavcodec/aac_ac3_parser.h
View File

@ -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,

4
libavcodec/ac3_parser.c
View File

@ -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);