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change of aac_ac3_parser, so it is able to send complete portion of data to decoder

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Originally committed as revision 12758 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Bartlomiej Wolowiec
2008-04-05 20:09:36 +00:00
parent 0265fe81e4
commit 0a5754c3b7
4 changed files with 53 additions and 61 deletions
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10
libavcodec/aac_parser.c
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@ -27,12 +27,14 @@
#define AAC_HEADER_SIZE 7
static int aac_sync(AACAC3ParseContext *hdr_info, AACAC3FrameFlag *flag)
static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info,
int *need_next_header, int *new_frame_start)
{
GetBitContext bits;
int size, rdb, ch, sr;
uint64_t tmp = be2me_64(state);
init_get_bits(&bits, hdr_info->inbuf, AAC_HEADER_SIZE * 8);
init_get_bits(&bits, (uint8_t *)&tmp, AAC_HEADER_SIZE * 8);
if(get_bits(&bits, 12) != 0xfff)
return 0;
@ -65,15 +67,15 @@ static int aac_sync(AACAC3ParseContext *hdr_info, AACAC3FrameFlag *flag)
hdr_info->sample_rate = ff_mpeg4audio_sample_rates[sr];
hdr_info->samples = (rdb + 1) * 1024;
hdr_info->bit_rate = size * 8 * hdr_info->sample_rate / hdr_info->samples;
*flag = FRAME_COMPLETE;
*need_next_header=0;
*new_frame_start=1;
return size;
}
static av_cold int aac_parse_init(AVCodecParserContext *s1)
{
AACAC3ParseContext *s = s1->priv_data;
s->inbuf_ptr = s->inbuf;
s->header_size = AAC_HEADER_SIZE;
s->sync = aac_sync;
return 0;