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ffmpeg.wasm-core
Commit 0d0447ea authored by Jeff Downs's avatar Jeff Downs Committed by Andreas Öman
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Rename MMCO stuff to prepare for h264/PAFF implementation. 

patch by Jeff Downs, heydowns a borg d com
original thread:
Subject: [FFmpeg-devel] [PATCH] Implement PAFF in H.264
Date: 18/09/07 20:30

Originally committed as revision 10646 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent bcc3476c
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Showing with 21 additions and 21 deletions
libavcodec/h264.c
View file @ 0d0447ea
......@@ -3228,47 +3228,47 @@ static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
for(i=0; i<mmco_count; i++){
if(s->avctx->debug&FF_DEBUG_MMCO)
av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_frame_num, h->mmco[i].long_index);
av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_pic_num, h->mmco[i].long_arg);
switch(mmco[i].opcode){
case MMCO_SHORT2UNUSED:
pic= remove_short(h, mmco[i].short_frame_num);
pic= remove_short(h, mmco[i].short_pic_num);
if(pic)
unreference_pic(h, pic);
else if(s->avctx->debug&FF_DEBUG_MMCO)
av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: remove_short() failure\n");
break;
case MMCO_SHORT2LONG:
pic= remove_long(h, mmco[i].long_index);
pic= remove_long(h, mmco[i].long_arg);
if(pic) unreference_pic(h, pic);
h->long_ref[ mmco[i].long_index ]= remove_short(h, mmco[i].short_frame_num);
if (h->long_ref[ mmco[i].long_index ]){
h->long_ref[ mmco[i].long_index ]->long_ref=1;
h->long_ref[ mmco[i].long_arg ]= remove_short(h, mmco[i].short_pic_num);
if (h->long_ref[ mmco[i].long_arg ]){
h->long_ref[ mmco[i].long_arg ]->long_ref=1;
h->long_ref_count++;
}
break;
case MMCO_LONG2UNUSED:
pic= remove_long(h, mmco[i].long_index);
pic= remove_long(h, mmco[i].long_arg);
if(pic)
unreference_pic(h, pic);
else if(s->avctx->debug&FF_DEBUG_MMCO)
av_log(h->s.avctx, AV_LOG_DEBUG, "mmco: remove_long() failure\n");
break;
case MMCO_LONG:
pic= remove_long(h, mmco[i].long_index);
pic= remove_long(h, mmco[i].long_arg);
if(pic) unreference_pic(h, pic);
h->long_ref[ mmco[i].long_index ]= s->current_picture_ptr;
h->long_ref[ mmco[i].long_index ]->long_ref=1;
h->long_ref[ mmco[i].long_arg ]= s->current_picture_ptr;
h->long_ref[ mmco[i].long_arg ]->long_ref=1;
h->long_ref_count++;
current_is_long=1;
break;
case MMCO_SET_MAX_LONG:
assert(mmco[i].long_index <= 16);
assert(mmco[i].long_arg <= 16);
// just remove the long term which index is greater than new max
for(j = mmco[i].long_index; j<16; j++){
for(j = mmco[i].long_arg; j<16; j++){
pic = remove_long(h, j);
if (pic) unreference_pic(h, pic);
}
......@@ -3313,8 +3313,8 @@ static int decode_ref_pic_marking(H264Context *h, GetBitContext *gb){
if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields
s->broken_link= get_bits1(gb) -1;
h->mmco[0].long_index= get_bits1(gb) - 1; // current_long_term_idx
if(h->mmco[0].long_index == -1)
h->mmco[0].long_arg= get_bits1(gb) - 1; // current_long_term_idx
if(h->mmco[0].long_arg == -1)
h->mmco_index= 0;
else{
h->mmco[0].opcode= MMCO_LONG;
......@@ -3327,19 +3327,19 @@ static int decode_ref_pic_marking(H264Context *h, GetBitContext *gb){
h->mmco[i].opcode= opcode;
if(opcode==MMCO_SHORT2UNUSED || opcode==MMCO_SHORT2LONG){
h->mmco[i].short_frame_num= (h->frame_num - get_ue_golomb(gb) - 1) & ((1<<h->sps.log2_max_frame_num)-1); //FIXME fields
/* if(h->mmco[i].short_frame_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_frame_num ] == NULL){
h->mmco[i].short_pic_num= (h->frame_num - get_ue_golomb(gb) - 1) & ((1<<h->sps.log2_max_frame_num)-1); //FIXME fields
/* if(h->mmco[i].short_pic_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_pic_num ] == NULL){
av_log(s->avctx, AV_LOG_ERROR, "illegal short ref in memory management control operation %d\n", mmco);
return -1;
}*/
}
if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){
unsigned int long_index= get_ue_golomb(gb);
if(/*h->mmco[i].long_index >= h->long_ref_count || h->long_ref[ h->mmco[i].long_index ] == NULL*/ long_index >= 16){
if(/*h->mmco[i].long_arg >= h->long_ref_count || h->long_ref[ h->mmco[i].long_arg ] == NULL*/ long_index >= 16){
av_log(h->s.avctx, AV_LOG_ERROR, "illegal long ref in memory management control operation %d\n", opcode);
return -1;
}
h->mmco[i].long_index= long_index;
h->mmco[i].long_arg= long_index;
}
if(opcode > (unsigned)MMCO_LONG){
......@@ -3355,7 +3355,7 @@ static int decode_ref_pic_marking(H264Context *h, GetBitContext *gb){
if(h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count){ //FIXME fields
h->mmco[0].opcode= MMCO_SHORT2UNUSED;
h->mmco[0].short_frame_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
h->mmco[0].short_pic_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
h->mmco_index= 1;
}else
h->mmco_index= 0;
......
libavcodec/h264.h
View file @ 0d0447ea
......@@ -151,8 +151,8 @@ typedef enum MMCOOpcode{
*/
typedef struct MMCO{
MMCOOpcode opcode;
int short_frame_num;
int long_index;
int short_pic_num; ///< pic_num without wrapping (pic_num & max_pic_num)
int long_arg; ///< index, pic_num, or num long refs depending on opcode
} MMCO;
/**
......
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