[SCM] libav/experimental: Rename MMCO stuff to prepare for h264/PAFF implementation.
siretart at users.alioth.debian.org
siretart at users.alioth.debian.org
Sun Jun 30 16:07:48 UTC 2013
The following commit has been merged in the experimental branch:
commit 0d0447eae09dca047412a03d64ac2bfc11a80d35
Author: Jeff Downs <heydowns at borg.com>
Date: Tue Oct 2 14:35:20 2007 +0000
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
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 6ab38e7..4db4d97 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -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;
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 0fd28ad..0081e73 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -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;
/**
--
Libav/FFmpeg packaging
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