use dc tables from msmpeg4 instead of duplicating them patch by anonymous

[ffmpeg] / libavcodec / mpeg12.c

diff --git a/libavcodec/mpeg12.c b/libavcodec/mpeg12.c
index 550f17d15412f8ccf54525c864371edeb5296bf3..57ce02ea6dd41fec67a5752dc0f0389619c87664 100644 (file)
--- a/libavcodec/mpeg12.c
+++ b/libavcodec/mpeg12.c
@@ -104,16 +104,19 @@ static uint8_t mpeg1_index_run[2][64];
 static int8_t mpeg1_max_level[2][64];
 #endif //CONFIG_ENCODERS
 
-static void init_2d_vlc_rl(RLTable *rl)
+static void init_2d_vlc_rl(RLTable *rl, int use_static)
 {
     int i;
     
     init_vlc(&rl->vlc, TEX_VLC_BITS, rl->n + 2, 
              &rl->table_vlc[0][1], 4, 2,
-             &rl->table_vlc[0][0], 4, 2);
+             &rl->table_vlc[0][0], 4, 2, use_static);
+
+    if(use_static)    
+        rl->rl_vlc[0]= av_mallocz_static(rl->vlc.table_size*sizeof(RL_VLC_ELEM));
+    else
+        rl->rl_vlc[0]= av_malloc(rl->vlc.table_size*sizeof(RL_VLC_ELEM));
 
-    
-    rl->rl_vlc[0]= av_malloc(rl->vlc.table_size*sizeof(RL_VLC_ELEM));
     for(i=0; i<rl->vlc.table_size; i++){
         int code= rl->vlc.table[i][0];
         int len = rl->vlc.table[i][1];
@@ -303,6 +306,7 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
                 s->mb_width * s->mb_height <= 396 &&
                 s->mb_width * s->mb_height * framerate.num <= framerate.den*396*25 &&
                 framerate.num <= framerate.den*30 &&
+                s->avctx->me_range && s->avctx->me_range < 128 &&
                 vbv_buffer_size <= 20 &&
                 v <= 1856000/400 &&
                 s->codec_id == CODEC_ID_MPEG1VIDEO;
@@ -762,7 +766,7 @@ void ff_mpeg1_encode_init(MpegEncContext *s)
        int i;
 
         done=1;
-        init_rl(&rl_mpeg1);
+        init_rl(&rl_mpeg1, 1);
 
        for(i=0; i<64; i++)
        {
@@ -990,31 +994,31 @@ static void init_vlcs(void)
 
         init_vlc(&dc_lum_vlc, DC_VLC_BITS, 12, 
                  vlc_dc_lum_bits, 1, 1,
-                 vlc_dc_lum_code, 2, 2);
+                 vlc_dc_lum_code, 2, 2, 1);
         init_vlc(&dc_chroma_vlc,  DC_VLC_BITS, 12, 
                  vlc_dc_chroma_bits, 1, 1,
-                 vlc_dc_chroma_code, 2, 2);
+                 vlc_dc_chroma_code, 2, 2, 1);
         init_vlc(&mv_vlc, MV_VLC_BITS, 17, 
                  &mbMotionVectorTable[0][1], 2, 1,
-                 &mbMotionVectorTable[0][0], 2, 1);
+                 &mbMotionVectorTable[0][0], 2, 1, 1);
         init_vlc(&mbincr_vlc, MBINCR_VLC_BITS, 36, 
                  &mbAddrIncrTable[0][1], 2, 1,
-                 &mbAddrIncrTable[0][0], 2, 1);
+                 &mbAddrIncrTable[0][0], 2, 1, 1);
         init_vlc(&mb_pat_vlc, MB_PAT_VLC_BITS, 64,
                  &mbPatTable[0][1], 2, 1,
-                 &mbPatTable[0][0], 2, 1);
+                 &mbPatTable[0][0], 2, 1, 1);
         
         init_vlc(&mb_ptype_vlc, MB_PTYPE_VLC_BITS, 7, 
                  &table_mb_ptype[0][1], 2, 1,
-                 &table_mb_ptype[0][0], 2, 1);
+                 &table_mb_ptype[0][0], 2, 1, 1);
         init_vlc(&mb_btype_vlc, MB_BTYPE_VLC_BITS, 11, 
                  &table_mb_btype[0][1], 2, 1,
-                 &table_mb_btype[0][0], 2, 1);
-        init_rl(&rl_mpeg1);
-        init_rl(&rl_mpeg2);
+                 &table_mb_btype[0][0], 2, 1, 1);
+        init_rl(&rl_mpeg1, 1);
+        init_rl(&rl_mpeg2, 1);
 
-        init_2d_vlc_rl(&rl_mpeg1);
-        init_2d_vlc_rl(&rl_mpeg2);
+        init_2d_vlc_rl(&rl_mpeg1, 1);
+        init_2d_vlc_rl(&rl_mpeg2, 1);
     }
 }
 
@@ -1966,8 +1970,8 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){
 
     if (
        (s1->mpeg_enc_ctx_allocated == 0)|| 
-        avctx->width  != s->width ||
-        avctx->height != s->height||
+        avctx->coded_width  != s->width ||
+        avctx->coded_height != s->height||
 //      s1->save_aspect_info != avctx->aspect_ratio_info||
         0)
     {
@@ -1979,8 +1983,7 @@ static int mpeg_decode_postinit(AVCodecContext *avctx){
        if( (s->width == 0 )||(s->height == 0))
            return -2;
 
-        avctx->width = s->width;
-        avctx->height = s->height;
+        avcodec_set_dimensions(avctx, s->width, s->height);
         avctx->bit_rate = s->bit_rate;
         s1->save_aspect_info = s->aspect_ratio_info;
 
@@ -2776,8 +2779,8 @@ static int vcr2_init_sequence(AVCodecContext *avctx)
     if (s1->mpeg_enc_ctx_allocated) {
         MPV_common_end(s);
     }
-    s->width = avctx->width;
-    s->height = avctx->height;
+    s->width  = avctx->coded_width;
+    s->height = avctx->coded_height;
     avctx->has_b_frames= 0; //true?
     s->low_delay= 1;
 
@@ -3097,7 +3100,7 @@ AVCodec mpeg1video_decoder = {
     NULL,
     mpeg_decode_end,
     mpeg_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED,
+    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
     .flush= ff_mpeg_flush,
 };
 
@@ -3110,7 +3113,7 @@ AVCodec mpeg2video_decoder = {
     NULL,
     mpeg_decode_end,
     mpeg_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED,
+    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
     .flush= ff_mpeg_flush,
 };
 
@@ -3124,7 +3127,7 @@ AVCodec mpegvideo_decoder = {
     NULL,
     mpeg_decode_end,
     mpeg_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED,
+    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
     .flush= ff_mpeg_flush,
 };
 
@@ -3187,7 +3190,7 @@ AVCodec mpeg_xvmc_decoder = {
     NULL,
     mpeg_decode_end,
     mpeg_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED| CODEC_CAP_HWACCEL,
+    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED| CODEC_CAP_HWACCEL | CODEC_CAP_DELAY,
     .flush= ff_mpeg_flush,
 };