X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fmsmpeg4dec.c;h=d059e8eeccd0299163d0c9e6b4eb17b922e5cd42;hb=12c8aeb2b822f8acec5a94ed4591ec6db9994c74;hp=16b67192b51ee77bde9589e75a5cb88b35ae37c4;hpb=e4e04dce1fab81bcdef82e60184d50c73d212c6a;p=ffmpeg

diff --git a/libavcodec/msmpeg4dec.c b/libavcodec/msmpeg4dec.c
index 16b67192b51..d059e8eeccd 100644
--- a/libavcodec/msmpeg4dec.c
+++ b/libavcodec/msmpeg4dec.c
@@ -38,7 +38,6 @@
 #define V2_INTRA_CBPC_VLC_BITS 3
 #define V2_MB_TYPE_VLC_BITS 7
 #define MV_VLC_BITS 9
-#define V2_MV_VLC_BITS 9
 #define TEX_VLC_BITS 9
 
 #define DEFAULT_INTER_INDEX 3
@@ -66,7 +65,6 @@ static VLC v2_dc_lum_vlc;
 static VLC v2_dc_chroma_vlc;
 static VLC v2_intra_cbpc_vlc;
 static VLC v2_mb_type_vlc;
-static VLC v2_mv_vlc;
 VLC ff_inter_intra_vlc;
 
 /* This is identical to H.263 except that its range is multiplied by 2. */
@@ -74,7 +72,7 @@ static int msmpeg4v2_decode_motion(MpegEncContext * s, int pred, int f_code)
 {
     int code, val, sign, shift;
 
-    code = get_vlc2(&s->gb, v2_mv_vlc.table, V2_MV_VLC_BITS, 2);
+    code = get_vlc2(&s->gb, ff_h263_mv_vlc.table, H263_MV_VLC_BITS, 2);
     ff_dlog(s, "MV code %d at %d %d pred: %d\n", code, s->mb_x,s->mb_y, pred);
     if (code < 0)
         return 0xffff;
@@ -317,12 +315,15 @@ av_cold int ff_msmpeg4_decode_init(AVCodecContext *avctx)
         for(i=0;i<NB_RL_TABLES;i++) {
             ff_rl_init(&ff_rl_table[i], ff_static_rl_table_store[i]);
         }
-        INIT_VLC_RL(ff_rl_table[0], 642);
-        INIT_VLC_RL(ff_rl_table[1], 1104);
-        INIT_VLC_RL(ff_rl_table[2], 554);
+        INIT_FIRST_VLC_RL(ff_rl_table[0], 642);
+        INIT_FIRST_VLC_RL(ff_rl_table[1], 1104);
+        INIT_FIRST_VLC_RL(ff_rl_table[2], 554);
         INIT_VLC_RL(ff_rl_table[3], 940);
         INIT_VLC_RL(ff_rl_table[4], 962);
-        INIT_VLC_RL(ff_rl_table[5], 554);
+        /* ff_rl_table[5] coincides with ff_h263_rl_inter which has just been
+         * initialized in ff_h263_decode_init() above. So just copy the VLCs. */
+        av_assert1(ff_h263_rl_inter.rl_vlc[0]);
+        memcpy(ff_rl_table[5].rl_vlc, ff_h263_rl_inter.rl_vlc, sizeof(ff_rl_table[5].rl_vlc));
 
         mv = &ff_mv_tables[0];
         INIT_VLC_STATIC(&mv->vlc, MV_VLC_BITS, mv->n + 1,
@@ -359,9 +360,6 @@ av_cold int ff_msmpeg4_decode_init(AVCodecContext *avctx)
         INIT_VLC_STATIC(&v2_mb_type_vlc, V2_MB_TYPE_VLC_BITS, 8,
                  &ff_v2_mb_type[0][1], 2, 1,
                  &ff_v2_mb_type[0][0], 2, 1, 128);
-        INIT_VLC_STATIC(&v2_mv_vlc, V2_MV_VLC_BITS, 33,
-                 &ff_mvtab[0][1], 2, 1,
-                 &ff_mvtab[0][0], 2, 1, 538);
 
         INIT_VLC_STATIC(&ff_mb_non_intra_vlc[0], MB_NON_INTRA_VLC_BITS, 128,
                      &ff_wmv2_inter_table[0][0][1], 8, 4,
@@ -888,7 +886,7 @@ AVCodec ff_msmpeg4v1_decoder = {
     .close          = ff_h263_decode_end,
     .decode         = ff_h263_decode_frame,
     .capabilities   = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1,
-    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
+    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_CLEANUP,
     .max_lowres     = 3,
     .pix_fmts       = (const enum AVPixelFormat[]) {
         AV_PIX_FMT_YUV420P,
@@ -906,7 +904,7 @@ AVCodec ff_msmpeg4v2_decoder = {
     .close          = ff_h263_decode_end,
     .decode         = ff_h263_decode_frame,
     .capabilities   = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1,
-    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
+    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_CLEANUP,
     .max_lowres     = 3,
     .pix_fmts       = (const enum AVPixelFormat[]) {
         AV_PIX_FMT_YUV420P,
@@ -924,7 +922,7 @@ AVCodec ff_msmpeg4v3_decoder = {
     .close          = ff_h263_decode_end,
     .decode         = ff_h263_decode_frame,
     .capabilities   = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1,
-    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
+    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_CLEANUP,
     .max_lowres     = 3,
     .pix_fmts       = (const enum AVPixelFormat[]) {
         AV_PIX_FMT_YUV420P,
@@ -942,7 +940,7 @@ AVCodec ff_wmv1_decoder = {
     .close          = ff_h263_decode_end,
     .decode         = ff_h263_decode_frame,
     .capabilities   = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1,
-    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
+    .caps_internal  = FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM | FF_CODEC_CAP_INIT_CLEANUP,
     .max_lowres     = 3,
     .pix_fmts       = (const enum AVPixelFormat[]) {
         AV_PIX_FMT_YUV420P,