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[ffmpeg] / libavcodec / mpeg12enc.c

diff --git a/libavcodec/mpeg12enc.c b/libavcodec/mpeg12enc.c
index 1772ed79f645efebf5093d3dfe61f1a0e7f227d5..653fb4015cf11a8f07bcca7141053be30f5861bb 100644 (file)
--- a/libavcodec/mpeg12enc.c
+++ b/libavcodec/mpeg12enc.c
@@ -75,11 +75,12 @@ 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*/
@@ -87,25 +88,15 @@ 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;
                 }
             }
 
@@ -121,7 +112,7 @@ static int find_frame_rate_index(MpegEncContext *s){
     int64_t d;
 
     for(i=1;i<14;i++) {
-        int64_t n0= 1001LL/ff_frame_rate_tab[i].den*ff_frame_rate_tab[i].num*s->avctx->time_base.num;
+        int64_t n0= 1001LL/avpriv_frame_rate_tab[i].den*avpriv_frame_rate_tab[i].num*s->avctx->time_base.num;
         int64_t n1= 1001LL*s->avctx->time_base.den;
         if(s->avctx->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL && i>=9) break;
 
@@ -190,7 +181,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
     }
 
     if (s->tc.str) {
-        s->tc.rate = ff_frame_rate_tab[s->frame_rate_index];
+        s->tc.rate = avpriv_frame_rate_tab[s->frame_rate_index];
         if (ff_init_smtpe_timecode(s, &s->tc) < 0)
             return -1;
         s->avctx->timecode_frame_start = s->tc.start;
@@ -200,7 +191,7 @@ static av_cold int encode_init(AVCodecContext *avctx)
 
 static void put_header(MpegEncContext *s, int header)
 {
-    align_put_bits(&s->pb);
+    avpriv_align_put_bits(&s->pb);
     put_bits(&s->pb, 16, header>>16);
     put_sbits(&s->pb, 16, header);
 }
@@ -219,7 +210,7 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
         if(aspect_ratio==0.0) aspect_ratio= 1.0; //pixel aspect 1:1 (VGA)
 
         if (s->current_picture.f.key_frame) {
-            AVRational framerate= ff_frame_rate_tab[s->frame_rate_index];
+            AVRational framerate= avpriv_frame_rate_tab[s->frame_rate_index];
 
             /* mpeg1 header repeated every gop */
             put_header(s, SEQ_START_CODE);
@@ -978,7 +969,7 @@ AVCodec ff_mpeg1video_encoder = {
     .init           = encode_init,
     .encode         = MPV_encode_picture,
     .close          = MPV_encode_end,
-    .supported_framerates= ff_frame_rate_tab+1,
+    .supported_framerates= avpriv_frame_rate_tab+1,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
     .capabilities= CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
     .long_name= NULL_IF_CONFIG_SMALL("MPEG-1 video"),
@@ -993,7 +984,7 @@ AVCodec ff_mpeg2video_encoder = {
     .init           = encode_init,
     .encode         = MPV_encode_picture,
     .close          = MPV_encode_end,
-    .supported_framerates= ff_frame_rate_tab+1,
+    .supported_framerates= avpriv_frame_rate_tab+1,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_NONE},
     .capabilities= CODEC_CAP_DELAY | CODEC_CAP_SLICE_THREADS,
     .long_name= NULL_IF_CONFIG_SMALL("MPEG-2 video"),