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Corrections of errors in aac_ac3_parser

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Originally committed as revision 12759 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Bartlomiej Wolowiec 2008-04-07 20:54:08 +00:00
parent 0a5754c3b7
commit c09ed33e18
4 changed files with 11 additions and 3 deletions
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9
libavcodec/aac_ac3_parser.c
View File

@ -44,13 +44,19 @@ int ff_aac_ac3_parse(AVCodecParserContext *s1,
if((len=s->sync(s->state, s, &s->need_next_header, &s->new_frame_start)))
break;
}
i-= s->header_size;
i-= s->header_size -1;
if(len>0){
s->remaining_size = len + i;
if(pc->index+i > 0 && s->new_frame_start){
s->remaining_size -= i; // remaining_size=len
output_frame:
if(!s->frame_in_buffer && 0){
s->frame_in_buffer=1;
buf+=i;
buf_size-=i;
continue;
}
ff_combine_frame(pc, i, &buf, &buf_size);
*poutbuf = buf;
*poutbuf_size = buf_size;
@ -72,6 +78,7 @@ output_frame:
return i;
}
s->frame_in_buffer=1;
}else{
break;
}

1
libavcodec/aac_ac3_parser.h
View File

@ -43,6 +43,7 @@ typedef struct AACAC3ParseContext {
int need_next_header;
int new_frame_start;
int frame_in_buffer;
} AACAC3ParseContext;
int ff_aac_ac3_parse(AVCodecParserContext *s1,

2
libavcodec/aac_parser.c
View File

@ -34,7 +34,7 @@ static int aac_sync(uint64_t state, AACAC3ParseContext *hdr_info,
int size, rdb, ch, sr;
uint64_t tmp = be2me_64(state);
init_get_bits(&bits, (uint8_t *)&tmp, AAC_HEADER_SIZE * 8);
init_get_bits(&bits, ((uint8_t *)&tmp)+8-AAC_HEADER_SIZE, AAC_HEADER_SIZE * 8);
if(get_bits(&bits, 12) != 0xfff)
return 0;

2
libavcodec/ac3_parser.c
View File

@ -130,7 +130,7 @@ static int ac3_sync(uint64_t state, AACAC3ParseContext *hdr_info,
uint64_t tmp = be2me_64(state);
AC3HeaderInfo hdr;
err = ff_ac3_parse_header((uint8_t *)&tmp, &hdr);
err = ff_ac3_parse_header(((uint8_t *)&tmp)+8-AC3_HEADER_SIZE, &hdr);
if(err < 0)
return 0;