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SI/SP slice support. (not bitexact) 

SI untested as I did not find any samples.

Originally committed as revision 14325 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-07-21 18:44:57 +00:00
parent 932f396f50
commit 4b30289ec9
1 changed files with 14 additions and 10 deletions
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24
libavcodec/h264.c
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@ -4216,7 +4216,7 @@ static int decode_slice_header(H264Context *h, H264Context *h0){
}
if( s->avctx->skip_loop_filter >= AVDISCARD_ALL
||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type != FF_I_TYPE)
||(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY && h->slice_type_nos != FF_I_TYPE)
||(s->avctx->skip_loop_filter >= AVDISCARD_BIDIR && h->slice_type == FF_B_TYPE)
||(s->avctx->skip_loop_filter >= AVDISCARD_NONREF && h->nal_ref_idc == 0))
h->deblocking_filter= 0;
@ -4554,7 +4554,7 @@ static int decode_mb_cavlc(H264Context *h){
mb_type -= 23;
goto decode_intra_mb;
}
}else if(h->slice_type == FF_P_TYPE /*|| h->slice_type == FF_SP_TYPE */){
}else if(h->slice_type_nos == FF_P_TYPE){
if(mb_type < 5){
partition_count= p_mb_type_info[mb_type].partition_count;
mb_type= p_mb_type_info[mb_type].type;
@ -4563,7 +4563,9 @@ static int decode_mb_cavlc(H264Context *h){
goto decode_intra_mb;
}
}else{
assert(h->slice_type == FF_I_TYPE);
assert(h->slice_type_nos == FF_I_TYPE);
if(h->slice_type == FF_SI_TYPE && mb_type)
mb_type--;
decode_intra_mb:
if(mb_type > 25){
av_log(h->s.avctx, AV_LOG_ERROR, "mb_type %d in %c slice too large at %d %d\n", mb_type, av_get_pict_type_char(h->slice_type), s->mb_x, s->mb_y);
@ -5059,9 +5061,9 @@ static int decode_cabac_intra_mb_type(H264Context *h, int ctx_base, int intra_sl
static int decode_cabac_mb_type( H264Context *h ) {
MpegEncContext * const s = &h->s;
if( h->slice_type == FF_I_TYPE ) {
if( h->slice_type_nos == FF_I_TYPE ) {
return decode_cabac_intra_mb_type(h, 3, 1);
} else if( h->slice_type == FF_P_TYPE ) {
} else if( h->slice_type_nos == FF_P_TYPE ) {
if( get_cabac_noinline( &h->cabac, &h->cabac_state[14] ) == 0 ) {
/* P-type */
if( get_cabac_noinline( &h->cabac, &h->cabac_state[15] ) == 0 ) {
@ -5690,7 +5692,7 @@ static int decode_mb_cabac(H264Context *h) {
mb_type -= 23;
goto decode_intra_mb;
}
} else if( h->slice_type == FF_P_TYPE ) {
} else if( h->slice_type_nos == FF_P_TYPE ) {
if( mb_type < 5) {
partition_count= p_mb_type_info[mb_type].partition_count;
mb_type= p_mb_type_info[mb_type].type;
@ -5699,7 +5701,9 @@ static int decode_mb_cabac(H264Context *h) {
goto decode_intra_mb;
}
} else {
assert(h->slice_type == FF_I_TYPE);
if(h->slice_type == FF_SI_TYPE && mb_type)
mb_type--;
assert(h->slice_type_nos == FF_I_TYPE);
decode_intra_mb:
partition_count = 0;
cbp= i_mb_type_info[mb_type].cbp;
@ -6820,7 +6824,7 @@ static int decode_slice(struct AVCodecContext *avctx, H264Context *h){
/* calculate pre-state */
for( i= 0; i < 460; i++ ) {
int pre;
if( h->slice_type == FF_I_TYPE )
if( h->slice_type_nos == FF_I_TYPE )
pre = av_clip( ((cabac_context_init_I[i][0] * s->qscale) >>4 ) + cabac_context_init_I[i][1], 1, 126 );
else
pre = av_clip( ((cabac_context_init_PB[h->cabac_init_idc][i][0] * s->qscale) >>4 ) + cabac_context_init_PB[h->cabac_init_idc][i][1], 1, 126 );
@ -7587,7 +7591,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
if(hx->redundant_pic_count==0 && hx->s.hurry_up < 5
&& (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
&& (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type!=FF_B_TYPE)
&& (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type==FF_I_TYPE)
&& (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==FF_I_TYPE)
&& avctx->skip_frame < AVDISCARD_ALL)
context_count++;
break;
@ -7612,7 +7616,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size){
&& s->hurry_up < 5
&& (avctx->skip_frame < AVDISCARD_NONREF || hx->nal_ref_idc)
&& (avctx->skip_frame < AVDISCARD_BIDIR || hx->slice_type!=FF_B_TYPE)
&& (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type==FF_I_TYPE)
&& (avctx->skip_frame < AVDISCARD_NONKEY || hx->slice_type_nos==FF_I_TYPE)
&& avctx->skip_frame < AVDISCARD_ALL)
context_count++;
break;