X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fmpeg12enc.c;h=be2f1e9002bba1a0ee2e202678b50ce8aa139f96;hb=53026339190132b79644bd2dec73ba9c9a902a4f;hp=5dedabd268addacf297dd3d79e510320af595ceb;hpb=9f51c682ee83ecf0995648d4574ac09b52bbcb24;p=ffmpeg

diff --git a/libavcodec/mpeg12enc.c b/libavcodec/mpeg12enc.c
index 5dedabd268a..be2f1e9002b 100644
--- a/libavcodec/mpeg12enc.c
+++ b/libavcodec/mpeg12enc.c
@@ -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;
                 }
             }
 
@@ -140,16 +131,9 @@ static av_cold int encode_init(AVCodecContext *avctx)
 {
     MpegEncContext *s = avctx->priv_data;
 
-    if(MPV_encode_init(avctx) < 0)
+    if(ff_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);
@@ -347,7 +331,7 @@ void ff_mpeg1_encode_slice_header(MpegEncContext *s){
     put_bits(&s->pb, 1, 0); /* slice extra information */
 }
 
-void mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
+void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number)
 {
     mpeg1_encode_sequence_header(s);
 
@@ -672,7 +656,7 @@ static av_always_inline void mpeg1_encode_mb_internal(MpegEncContext *s,
     }
 }
 
-void mpeg1_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
+void ff_mpeg1_encode_mb(MpegEncContext *s, DCTELEM block[6][64], int motion_x, int motion_y)
 {
     if (s->chroma_format == CHROMA_420) mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 6);
     else                                mpeg1_encode_mb_internal(s, block, motion_x, motion_y, 8);
@@ -731,8 +715,8 @@ void ff_mpeg1_encode_init(MpegEncContext *s)
         int i;
 
         done=1;
-        init_rl(&ff_rl_mpeg1, ff_mpeg12_static_rl_table_store[0]);
-        init_rl(&ff_rl_mpeg2, ff_mpeg12_static_rl_table_store[1]);
+        ff_init_rl(&ff_rl_mpeg1, ff_mpeg12_static_rl_table_store[0]);
+        ff_init_rl(&ff_rl_mpeg2, ff_mpeg12_static_rl_table_store[1]);
 
         for(i=0; i<64; i++)
         {
@@ -970,8 +954,8 @@ AVCodec ff_mpeg1video_encoder = {
     .id             = CODEC_ID_MPEG1VIDEO,
     .priv_data_size = sizeof(MpegEncContext),
     .init           = encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .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,
@@ -985,8 +969,8 @@ AVCodec ff_mpeg2video_encoder = {
     .id             = CODEC_ID_MPEG2VIDEO,
     .priv_data_size = sizeof(MpegEncContext),
     .init           = encode_init,
-    .encode         = MPV_encode_picture,
-    .close          = MPV_encode_end,
+    .encode         = ff_MPV_encode_picture,
+    .close          = ff_MPV_encode_end,
     .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,