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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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20
libavcodec/ac3_parser.c
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@ -123,12 +123,14 @@ int ff_ac3_parse_header(const uint8_t buf[7], AC3HeaderInfo *hdr)
return 0;
}
static int ac3_sync(AACAC3ParseContext *hdr_info, AACAC3FrameFlag *flag)
static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
int *need_next_header, int *new_frame_start)
{
int err;
uint64_t tmp = be2me_64(state);
AC3HeaderInfo hdr;
err = ff_ac3_parse_header(hdr_info->inbuf, &hdr);
err = ff_ac3_parse_header((uint8_t *)&tmp, &hdr);
if(err < 0)
return 0;
@ -138,24 +140,14 @@ static int ac3_sync(AACAC3ParseContext *hdr_info, AACAC3FrameFlag *flag)
hdr_info->channels = hdr.channels;
hdr_info->samples = AC3_FRAME_SIZE;
switch(hdr.frame_type){
case EAC3_FRAME_TYPE_INDEPENDENT:
*flag = FRAME_START;
break;
case EAC3_FRAME_TYPE_DEPENDENT:
*flag = FRAME_CONTINUATION;
break;
case EAC3_FRAME_TYPE_AC3_CONVERT:
*flag = FRAME_COMPLETE;
break;
}
*need_next_header = (hdr.frame_type != EAC3_FRAME_TYPE_AC3_CONVERT);
*new_frame_start = (hdr.frame_type != EAC3_FRAME_TYPE_DEPENDENT);
return hdr.frame_size;
}
static av_cold int ac3_parse_init(AVCodecParserContext *s1)
{
AACAC3ParseContext *s = s1->priv_data;
s->inbuf_ptr = s->inbuf;
s->header_size = AC3_HEADER_SIZE;
s->sync = ac3_sync;
return 0;