]> git.sesse.net Git - ffmpeg/blobdiff - libavcodec/mpeg12enc.c
apedec: remove unneeded #include of get_bits.h and associated macro
[ffmpeg] / libavcodec / mpeg12enc.c
index 5dedabd268addacf297dd3d79e510320af595ceb..81d366d8100b6d7196543e8083d18a73173ae510 100644 (file)
@@ -74,11 +74,12 @@ static void init_uni_ac_vlc(RLTable *rl, uint8_t *uni_ac_vlc_len){
     for(i=0; i<128; i++){
         int level= i-64;
         int run;
+        if (!level)
+            continue;
         for(run=0; run<64; run++){
-            int len, bits, code;
+            int len, code;
 
             int alevel= FFABS(level);
-            int sign= (level>>31)&1;
 
             if (alevel > rl->max_level[0][run])
                 code= 111; /*rl->n*/
@@ -86,25 +87,15 @@ static void init_uni_ac_vlc(RLTable *rl, uint8_t *uni_ac_vlc_len){
                 code= rl->index_run[0][run] + alevel - 1;
 
             if (code < 111 /* rl->n */) {
-                /* store the vlc & sign at once */
+                /* length of vlc and sign */
                 len=   rl->table_vlc[code][1]+1;
-                bits= (rl->table_vlc[code][0]<<1) + sign;
             } else {
                 len=  rl->table_vlc[111/*rl->n*/][1]+6;
-                bits= rl->table_vlc[111/*rl->n*/][0]<<6;
 
-                bits|= run;
                 if (alevel < 128) {
-                    bits<<=8; len+=8;
-                    bits|= level & 0xff;
+                    len += 8;
                 } else {
-                    bits<<=16; len+=16;
-                    bits|= level & 0xff;
-                    if (level < 0) {
-                        bits|= 0x8001 + level + 255;
-                    } else {
-                        bits|= level & 0xffff;
-                    }
+                    len += 16;
                 }
             }
 
@@ -143,13 +134,6 @@ static av_cold int encode_init(AVCodecContext *avctx)
     if(MPV_encode_init(avctx) < 0)
         return -1;
 
-#if FF_API_MPEGVIDEO_GLOBAL_OPTS
-    if (avctx->flags2 & CODEC_FLAG2_DROP_FRAME_TIMECODE)
-        s->drop_frame_timecode = 1;
-    if (avctx->flags & CODEC_FLAG_SVCD_SCAN_OFFSET)
-        s->scan_offset = 1;
-#endif
-
     if(find_frame_rate_index(s) < 0){
         if(s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL){
             av_log(avctx, AV_LOG_ERROR, "MPEG1/2 does not support %d/%d fps\n", avctx->time_base.den, avctx->time_base.num);