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Code Issues Releases Activity

support extracting sps/pps from bitstream and putting it in extradata

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Originally committed as revision 4403 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2005-06-28 08:13:23 +00:00
parent e679cd1ab0
commit 3f46995ca5
1 changed files with 33 additions and 0 deletions
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33
libavcodec/h264.c
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@ -7133,6 +7133,13 @@ static int find_frame_end(H264Context *h, const uint8_t *buf, int buf_size){
}
pc->frame_start_found = 1;
}
if((state&0xFFFFFF1F) == 0x107 || (state&0xFFFFFF1F) == 0x108 || (state&0xFFFFFF1F) == 0x109){
if(pc->frame_start_found){
pc->state=-1;
pc->frame_start_found= 0;
return i-4;
}
}
if (i<buf_size)
state= (state<<8) | buf[i];
}
@ -7163,6 +7170,31 @@ static int h264_parse(AVCodecParserContext *s,
return next;
}
static int h264_split(AVCodecContext *avctx,
const uint8_t *buf, int buf_size)
{
int i;
uint32_t state = -1;
int has_sps= 0;
for(i=0; i<=buf_size; i++){
if((state&0xFFFFFF1F) == 0x107)
has_sps=1;
/* if((state&0xFFFFFF1F) == 0x101 || (state&0xFFFFFF1F) == 0x102 || (state&0xFFFFFF1F) == 0x105){
}*/
if((state&0xFFFFFF00) == 0x100 && (state&0xFFFFFF1F) != 0x107 && (state&0xFFFFFF1F) != 0x108 && (state&0xFFFFFF1F) != 0x109){
if(has_sps){
while(i>4 && buf[i-5]==0) i--;
return i-4;
}
}
if (i<buf_size)
state= (state<<8) | buf[i];
}
return 0;
}
static int decode_nal_units(H264Context *h, uint8_t *buf, int buf_size){
MpegEncContext * const s = &h->s;
AVCodecContext * const avctx= s->avctx;
@ -7709,6 +7741,7 @@ AVCodecParser h264_parser = {
NULL,
h264_parse,
ff_parse_close,
h264_split,
};
#include "svq3.c"