From 995a30c06bc04045eeeea5aa7d987cd33fd1fcfb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20=C3=96man?= <andreas@olebyn.nu>
Date: Tue, 19 Jun 2007 21:34:04 +0000
Subject: [PATCH] =?UTF-8?q?Decouple=20bit=20context=20from=20h264=20contex?=
 =?UTF-8?q?t=20in=20decode=5Fref=5Fpic=5Fmarking()=20(done=20in=20order=20?=
 =?UTF-8?q?to=20implement=20slice-level=20parallel=20decoding)=20Patch=20b?=
 =?UTF-8?q?y=20Andreas=20=C3=96man=20%=20andreas=20olebyn=20nu=20%=20Origi?=
 =?UTF-8?q?nal=20thread:=20Date:=20Jun=2015,=202007=2010:10=20PM=20Subject?=
 =?UTF-8?q?:=20[FFmpeg-devel]=20[PATCH]=20h264=20parallelized,=20(was:=20P?=
 =?UTF-8?q?arallelized=20h264=20proof-of-concept)?=
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Originally committed as revision 9371 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/h264.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 9930624824..a8801a1817 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -4006,13 +4006,13 @@ static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
     return 0;
 }
 
-static int decode_ref_pic_marking(H264Context *h){
+static int decode_ref_pic_marking(H264Context *h, GetBitContext *gb){
     MpegEncContext * const s = &h->s;
     int i;
 
     if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields
-        s->broken_link= get_bits1(&s->gb) -1;
-        h->mmco[0].long_index= get_bits1(&s->gb) - 1; // current_long_term_idx
+        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_index= 0;
         else{
@@ -4020,20 +4020,20 @@ static int decode_ref_pic_marking(H264Context *h){
             h->mmco_index= 1;
         }
     }else{
-        if(get_bits1(&s->gb)){ // adaptive_ref_pic_marking_mode_flag
+        if(get_bits1(gb)){ // adaptive_ref_pic_marking_mode_flag
             for(i= 0; i<MAX_MMCO_COUNT; i++) {
-                MMCOOpcode opcode= get_ue_golomb(&s->gb);;
+                MMCOOpcode opcode= get_ue_golomb(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(&s->gb) - 1) & ((1<<h->sps.log2_max_frame_num)-1); //FIXME fields
+                    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){
                         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(&s->gb);
+                    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){
                         av_log(h->s.avctx, AV_LOG_ERROR, "illegal long ref in memory management control operation %d\n", opcode);
                         return -1;
@@ -4416,7 +4416,7 @@ static int decode_slice_header(H264Context *h){
         h->use_weight = 0;
 
     if(s->current_picture.reference)
-        decode_ref_pic_marking(h);
+        decode_ref_pic_marking(h, &s->gb);
 
     if(FRAME_MBAFF)
         fill_mbaff_ref_list(h);