rv40: NEON optimised chroma MC

[ffmpeg] / libavcodec / mpeg4videodec.c

diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index df0191dc9f530080183b2a86e75312de7a7ed5e6..2807d506ee9e09519773d3282354d3639ead71de 100644 (file)
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -990,28 +990,6 @@ static inline int mpeg4_decode_block(MpegEncContext * s, DCTELEM * block,
                         SKIP_COUNTER(re, &s->gb, 1+12+1);
                     }
 
-#if 0
-                    if(s->error_recognition >= FF_ER_COMPLIANT){
-                        const int abs_level= FFABS(level);
-                        if(abs_level<=MAX_LEVEL && run<=MAX_RUN){
-                            const int run1= run - rl->max_run[last][abs_level] - 1;
-                            if(abs_level <= rl->max_level[last][run]){
-                                av_log(s->avctx, AV_LOG_ERROR, "illegal 3. esc, vlc encoding possible\n");
-                                return -1;
-                            }
-                            if(s->error_recognition > FF_ER_COMPLIANT){
-                                if(abs_level <= rl->max_level[last][run]*2){
-                                    av_log(s->avctx, AV_LOG_ERROR, "illegal 3. esc, esc 1 encoding possible\n");
-                                    return -1;
-                                }
-                                if(run1 >= 0 && abs_level <= rl->max_level[last][run1]){
-                                    av_log(s->avctx, AV_LOG_ERROR, "illegal 3. esc, esc 2 encoding possible\n");
-                                    return -1;
-                                }
-                            }
-                        }
-                    }
-#endif
                     if (level>0) level= level * qmul + qadd;
                     else         level= level * qmul - qadd;
 
@@ -1523,6 +1501,22 @@ static int mpeg4_decode_gop_header(MpegEncContext * s, GetBitContext *gb){
     return 0;
 }
 
+static int mpeg4_decode_profile_level(MpegEncContext * s, GetBitContext *gb){
+  int profile_and_level_indication;
+
+  profile_and_level_indication = get_bits(gb, 8);
+
+  s->avctx->profile = (profile_and_level_indication & 0xf0) >> 4;
+  s->avctx->level   = (profile_and_level_indication & 0x0f);
+
+  // for Simple profile, level 0
+  if (s->avctx->profile == 0 && s->avctx->level == 8) {
+      s->avctx->level = 0;
+  }
+
+  return 0;
+}
+
 static int decode_vol_header(MpegEncContext *s, GetBitContext *gb){
     int width, height, vo_ver_id;
 
@@ -1860,7 +1854,7 @@ static int decode_user_data(MpegEncContext *s, GetBitContext *gb){
         }
     }
 
-    /* ffmpeg detection */
+    /* libavcodec detection */
     e=sscanf(buf, "FFmpe%*[^b]b%d", &build)+3;
     if(e!=4)
         e=sscanf(buf, "FFmpeg v%d.%d.%d / libavcodec build: %d", &ver, &ver2, &ver3, &build);
@@ -2107,7 +2101,7 @@ static int decode_vop_header(MpegEncContext *s, GetBitContext *gb){
  */
 int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb)
 {
-    int startcode, v;
+    unsigned startcode, v;
 
     /* search next start code */
     align_get_bits(gb);
@@ -2177,6 +2171,9 @@ int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb)
         else if(startcode == GOP_STARTCODE){
             mpeg4_decode_gop_header(s, gb);
         }
+        else if(startcode == VOS_STARTCODE){
+            mpeg4_decode_profile_level(s, gb);
+        }
         else if(startcode == VOP_STARTCODE){
             break;
         }
@@ -2237,35 +2234,53 @@ static av_cold int decode_init(AVCodecContext *avctx)
     return 0;
 }
 
+static const AVProfile mpeg4_video_profiles[] = {
+    { FF_PROFILE_MPEG4_SIMPLE,                    "Simple Profile" },
+    { FF_PROFILE_MPEG4_SIMPLE_SCALABLE,           "Simple Scalable Profile" },
+    { FF_PROFILE_MPEG4_CORE,                      "Core Profile" },
+    { FF_PROFILE_MPEG4_MAIN,                      "Main Profile" },
+    { FF_PROFILE_MPEG4_N_BIT,                     "N-bit Profile" },
+    { FF_PROFILE_MPEG4_SCALABLE_TEXTURE,          "Scalable Texture Profile" },
+    { FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION,     "Simple Face Animation Profile" },
+    { FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE,    "Basic Animated Texture Profile" },
+    { FF_PROFILE_MPEG4_HYBRID,                    "Hybrid Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_REAL_TIME,        "Advanced Real Time Simple Profile" },
+    { FF_PROFILE_MPEG4_CORE_SCALABLE,             "Code Scalable Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_CODING,           "Advanced Coding Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_CORE,             "Advanced Core Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE, "Advanced Scalable Texture Profile" },
+    { FF_PROFILE_MPEG4_SIMPLE_STUDIO,             "Simple Studio Profile" },
+    { FF_PROFILE_MPEG4_ADVANCED_SIMPLE,           "Advanced Simple Profile" },
+};
+
 AVCodec ff_mpeg4_decoder = {
-    "mpeg4",
-    AVMEDIA_TYPE_VIDEO,
-    CODEC_ID_MPEG4,
-    sizeof(MpegEncContext),
-    decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY | CODEC_CAP_FRAME_THREADS,
+    .name           = "mpeg4",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = CODEC_ID_MPEG4,
+    .priv_data_size = sizeof(MpegEncContext),
+    .init           = decode_init,
+    .close          = ff_h263_decode_end,
+    .decode         = ff_h263_decode_frame,
+    .capabilities   = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY | CODEC_CAP_FRAME_THREADS,
     .flush= ff_mpeg_flush,
     .max_lowres= 3,
     .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
     .pix_fmts= ff_hwaccel_pixfmt_list_420,
+    .profiles = NULL_IF_CONFIG_SMALL(mpeg4_video_profiles),
     .update_thread_context= ONLY_IF_THREADS_ENABLED(ff_mpeg_update_thread_context)
 };
 
 
 #if CONFIG_MPEG4_VDPAU_DECODER
 AVCodec ff_mpeg4_vdpau_decoder = {
-    "mpeg4_vdpau",
-    AVMEDIA_TYPE_VIDEO,
-    CODEC_ID_MPEG4,
-    sizeof(MpegEncContext),
-    decode_init,
-    NULL,
-    ff_h263_decode_end,
-    ff_h263_decode_frame,
-    CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
+    .name           = "mpeg4_vdpau",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = CODEC_ID_MPEG4,
+    .priv_data_size = sizeof(MpegEncContext),
+    .init           = decode_init,
+    .close          = ff_h263_decode_end,
+    .decode         = ff_h263_decode_frame,
+    .capabilities   = CODEC_CAP_DR1 | CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY | CODEC_CAP_HWACCEL_VDPAU,
     .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 (VDPAU)"),
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_VDPAU_MPEG4, PIX_FMT_NONE},
 };