--disable-risky support

Originally committed as revision 1522 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -82,6 +82,7 @@ LIBPREF="lib"
 LIBSUF=".a"
 SLIBPREF="lib"
 SLIBSUF=".so"
+risky="yes"
 
 # OS specific
 targetos=`uname -s`
@@ -298,6 +299,8 @@ for opt do
   ;;
   --disable-ffserver) ffserver="no"
   ;;
+  --disable-risky) risky="no"
+  ;;
   esac
 done
 
@@ -587,6 +590,7 @@ echo "  --enable-gprof           enable profiling with gprof [$gprof]"
 echo "  --disable-mpegaudio-hp   faster (but less accurate)"
 echo "                           mpegaudio decoding [default=no]"
 echo "  --disable-ffserver       disable ffserver build"
+echo "  --disable-risky          disables patent encumbered codecs"
 echo ""
 echo "NOTE: The object files are build at the place where configure is launched"
 exit 1
@@ -615,6 +619,7 @@ echo "vorbis enabled   $vorbis"
 echo "a52 support      $a52"
 echo "a52 dlopened     $a52bin"
 echo "Video hooking    $vhook"
+echo "risky / patent encumbered codecs $risky"
 
 if test "$vhook" = "yes" ; then
 echo "Imlib2 support   $imlib2"
@@ -842,6 +847,11 @@ if test "$ffserver" = "yes" ; then
   echo "CONFIG_FFSERVER=yes" >> config.mak
 fi
 
+if test "$risky" = "yes" ; then
+  echo "#define CONFIG_RISKY 1" >> $TMPH
+  echo "CONFIG_RISKY=yes" >> config.mak
+fi
+
 echo "#define restrict $_restrict" >> $TMPH
 
 # build tree in object directory if source path is different from current one

libavcodec/Makefile

@@ -11,14 +11,19 @@ CFLAGS= $(OPTFLAGS) -Wall -g -DHAVE_AV_CONFIG_H -I.. -D_FILE_OFFSET_BITS=64 -D_L
 LDFLAGS= -g
 
 OBJS= common.o utils.o mem.o allcodecs.o \
-      mpegvideo.o h263.o jrevdct.o jfdctfst.o jfdctint.o\
+      mpegvideo.o jrevdct.o jfdctfst.o jfdctint.o\
       mpegaudio.o ac3enc.o mjpeg.o resample.o dsputil.o \
-      motion_est.o imgconvert.o imgresample.o msmpeg4.o \
+      motion_est.o imgconvert.o imgresample.o \
-      mpeg12.o h263dec.o svq1.o rv10.o mpegaudiodec.o pcm.o simple_idct.o \
+      mpeg12.o mpegaudiodec.o pcm.o simple_idct.o \
       ratecontrol.o adpcm.o eval.o dv.o error_resilience.o \
-      wmadec.o fft.o mdct.o mace.o huffyuv.o
+      fft.o mdct.o mace.o huffyuv.o
 ASM_OBJS=
 
+# codecs which are patented in some non free countries like the us
+ifeq ($(CONFIG_RISKY),yes)
+OBJS+= h263.o msmpeg4.o h263dec.o svq1.o rv10.o wmadec.o
+endif
+
 # currently using liba52 for ac3 decoding
 ifeq ($(CONFIG_AC3),yes)
 OBJS+= a52dec.o

libavcodec/allcodecs.c

@@ -44,22 +44,25 @@ void avcodec_register_all(void)
     register_avcodec(&oggvorbis_decoder);
 #endif
     register_avcodec(&mpeg1video_encoder);
+#ifdef CONFIG_RISKY
     register_avcodec(&h263_encoder);
     register_avcodec(&h263p_encoder);
     register_avcodec(&rv10_encoder);
-    register_avcodec(&mjpeg_encoder);
     register_avcodec(&mpeg4_encoder);
     register_avcodec(&msmpeg4v1_encoder);
     register_avcodec(&msmpeg4v2_encoder);
     register_avcodec(&msmpeg4v3_encoder);
     register_avcodec(&wmv1_encoder);
     register_avcodec(&wmv2_encoder);
+#endif
+    register_avcodec(&mjpeg_encoder);
     register_avcodec(&huffyuv_encoder);
 #endif /* CONFIG_ENCODERS */
     register_avcodec(&rawvideo_codec);
 
     /* decoders */
 #ifdef CONFIG_DECODERS
+#ifdef CONFIG_RISKY
     register_avcodec(&h263_decoder);
     register_avcodec(&mpeg4_decoder);
     register_avcodec(&msmpeg4v1_decoder);
@@ -67,18 +70,19 @@ void avcodec_register_all(void)
     register_avcodec(&msmpeg4v3_decoder);
     register_avcodec(&wmv1_decoder);
     register_avcodec(&wmv2_decoder);
-    register_avcodec(&mpeg_decoder);
     register_avcodec(&h263i_decoder);
     register_avcodec(&rv10_decoder);
     register_avcodec(&svq1_decoder);
+    register_avcodec(&wmav1_decoder);
+    register_avcodec(&wmav2_decoder);
+#endif
+    register_avcodec(&mpeg_decoder);
     register_avcodec(&dvvideo_decoder);
     register_avcodec(&dvaudio_decoder);
     register_avcodec(&mjpeg_decoder);
     register_avcodec(&mjpegb_decoder);
     register_avcodec(&mp2_decoder);
     register_avcodec(&mp3_decoder);
-    register_avcodec(&wmav1_decoder);
-    register_avcodec(&wmav2_decoder);
     register_avcodec(&mace3_decoder);
     register_avcodec(&mace6_decoder);
     register_avcodec(&huffyuv_decoder);

libavcodec/h263.c

@@ -2210,44 +2210,6 @@ static VLC dc_lum, dc_chrom;
 static VLC sprite_trajectory;
 static VLC mb_type_b_vlc;
 
-void init_rl(RLTable *rl)
-{
-    INT8 max_level[MAX_RUN+1], max_run[MAX_LEVEL+1];
-    UINT8 index_run[MAX_RUN+1];
-    int last, run, level, start, end, i;
-
-    /* compute max_level[], max_run[] and index_run[] */
-    for(last=0;last<2;last++) {
-        if (last == 0) {
-            start = 0;
-            end = rl->last;
-        } else {
-            start = rl->last;
-            end = rl->n;
-        }
-
-        memset(max_level, 0, MAX_RUN + 1);
-        memset(max_run, 0, MAX_LEVEL + 1);
-        memset(index_run, rl->n, MAX_RUN + 1);
-        for(i=start;i<end;i++) {
-            run = rl->table_run[i];
-            level = rl->table_level[i];
-            if (index_run[run] == rl->n)
-                index_run[run] = i;
-            if (level > max_level[run])
-                max_level[run] = level;
-            if (run > max_run[level])
-                max_run[level] = run;
-        }
-        rl->max_level[last] = av_malloc(MAX_RUN + 1);
-        memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
-        rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
-        memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
-        rl->index_run[last] = av_malloc(MAX_RUN + 1);
-        memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
-    }
-}
-
 void init_vlc_rl(RLTable *rl)
 {
     int i, q;

libavcodec/mpegvideo.c

@@ -625,6 +625,7 @@ int MPV_encode_init(AVCodecContext *avctx)
         avctx->delay=0;
         s->low_delay=1;
         break;
+#ifdef CONFIG_RISKY
     case CODEC_ID_H263:
         if (h263_get_picture_format(s->width, s->height) == 7) {
             printf("Input picture size isn't suitable for h263 codec! try h263+\n");
@@ -704,6 +705,7 @@ int MPV_encode_init(AVCodecContext *avctx)
         avctx->delay=0;
         s->low_delay=1;
         break;
+#endif
     default:
         return -1;
     }
@@ -741,24 +743,29 @@ int MPV_encode_init(AVCodecContext *avctx)
     ff_init_me(s);
 
 #ifdef CONFIG_ENCODERS
+#ifdef CONFIG_RISKY
     if (s->out_format == FMT_H263)
         h263_encode_init(s);
-    else if (s->out_format == FMT_MPEG1)
-        ff_mpeg1_encode_init(s);
     if(s->msmpeg4_version)
         ff_msmpeg4_encode_init(s);
 #endif
+    if (s->out_format == FMT_MPEG1)
+        ff_mpeg1_encode_init(s);
+#endif
 
     /* init default q matrix */
     for(i=0;i<64;i++) {
         int j= s->idct_permutation[i];
+#ifdef CONFIG_RISKY
         if(s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
             s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
             s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
         }else if(s->out_format == FMT_H263){
             s->intra_matrix[j] =
             s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
-        }else{ /* mpeg1 */
+        }else
+#endif
+        { /* mpeg1 */
             s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
             s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
         }
@@ -803,6 +810,44 @@ int MPV_encode_end(AVCodecContext *avctx)
     return 0;
 }
 
+void init_rl(RLTable *rl)
+{
+    INT8 max_level[MAX_RUN+1], max_run[MAX_LEVEL+1];
+    UINT8 index_run[MAX_RUN+1];
+    int last, run, level, start, end, i;
+
+    /* compute max_level[], max_run[] and index_run[] */
+    for(last=0;last<2;last++) {
+        if (last == 0) {
+            start = 0;
+            end = rl->last;
+        } else {
+            start = rl->last;
+            end = rl->n;
+        }
+
+        memset(max_level, 0, MAX_RUN + 1);
+        memset(max_run, 0, MAX_LEVEL + 1);
+        memset(index_run, rl->n, MAX_RUN + 1);
+        for(i=start;i<end;i++) {
+            run = rl->table_run[i];
+            level = rl->table_level[i];
+            if (index_run[run] == rl->n)
+                index_run[run] = i;
+            if (level > max_level[run])
+                max_level[run] = level;
+            if (run > max_run[level])
+                max_run[level] = run;
+        }
+        rl->max_level[last] = av_malloc(MAX_RUN + 1);
+        memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
+        rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
+        memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
+        rl->index_run[last] = av_malloc(MAX_RUN + 1);
+        memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
+    }
+}
+
 /* draw the edges of width 'w' of an image of size width, height */
 //FIXME check that this is ok for mpeg4 interlaced
 static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
@@ -1699,6 +1744,7 @@ static inline void MPV_motion(MpegEncContext *s,
 
     switch(s->mv_type) {
     case MV_TYPE_16X16:
+#ifdef CONFIG_RISKY
         if(s->mcsel){
             if(s->real_sprite_warping_points==1){
                 gmc1_motion(s, dest_y, dest_cb, dest_cr, 0,
@@ -1716,7 +1762,9 @@ static inline void MPV_motion(MpegEncContext *s,
             ff_mspel_motion(s, dest_y, dest_cb, dest_cr,
                         ref_picture, pix_op,
                         s->mv[dir][0][0], s->mv[dir][0][1], 16);
-        }else{
+        }else
+#endif
+        {
             mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
                         ref_picture, 0,
                         0, pix_op,
@@ -2102,9 +2150,12 @@ void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
                     add_dct(s, block[4], 4, dest_cb, s->uvlinesize);
                     add_dct(s, block[5], 5, dest_cr, s->uvlinesize);
                 }
-            } else{
+            } 
+#ifdef CONFIG_RISKY
+            else{
                 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
             }
+#endif
         } else {
             /* dct only in intra block */
             if(s->encoding || !(s->mpeg2 || s->codec_id==CODEC_ID_MPEG1VIDEO)){
@@ -2607,6 +2658,7 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
     switch(s->codec_id){ //FIXME funct ptr could be slightly faster
     case CODEC_ID_MPEG1VIDEO:
         mpeg1_encode_mb(s, s->block, motion_x, motion_y); break;
+#ifdef CONFIG_RISKY
     case CODEC_ID_MPEG4:
         mpeg4_encode_mb(s, s->block, motion_x, motion_y); break;
     case CODEC_ID_MSMPEG4V2:
@@ -2615,12 +2667,13 @@ static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
         msmpeg4_encode_mb(s, s->block, motion_x, motion_y); break;
     case CODEC_ID_WMV2:
          ff_wmv2_encode_mb(s, s->block, motion_x, motion_y); break;
-    case CODEC_ID_MJPEG:
-        mjpeg_encode_mb(s, s->block); break;
     case CODEC_ID_H263:
     case CODEC_ID_H263P:
     case CODEC_ID_RV10:
         h263_encode_mb(s, s->block, motion_x, motion_y); break;
+#endif
+    case CODEC_ID_MJPEG:
+        mjpeg_encode_mb(s, s->block); break;
     default:
         assert(0);
     }
@@ -2812,10 +2865,12 @@ static void encode_picture(MpegEncContext *s, int picture_number)
     s->current_picture.mb_var_sum = 0;
     s->current_picture.mc_mb_var_sum = 0;
 
+#ifdef CONFIG_RISKY
     /* we need to initialize some time vars before we can encode b-frames */
     if (s->h263_pred && !s->h263_msmpeg4)
         ff_set_mpeg4_time(s, s->picture_number); 
-
+#endif
+        
     s->scene_change_score=0;
     
     s->qscale= (int)(s->frame_qscale + 0.5); //FIXME qscale / ... stuff for ME ratedistoration
@@ -2924,6 +2979,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
         s->frame_qscale = ff_rate_estimate_qscale(s);
 
     if(s->adaptive_quant){
+#ifdef CONFIG_RISKY
         switch(s->codec_id){
         case CODEC_ID_MPEG4:
             ff_clean_mpeg4_qscales(s);
@@ -2933,6 +2989,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
             ff_clean_h263_qscales(s);
             break;
         }
+#endif
 
         s->qscale= s->current_picture.qscale_table[0];
     }else
@@ -2962,6 +3019,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
     case FMT_MJPEG:
         mjpeg_picture_header(s);
         break;
+#ifdef CONFIG_RISKY
     case FMT_H263:
         if (s->codec_id == CODEC_ID_WMV2) 
             ff_wmv2_encode_picture_header(s, picture_number);
@@ -2974,6 +3032,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
         else
             h263_encode_picture_header(s, picture_number);
         break;
+#endif
     case FMT_MPEG1:
         mpeg1_encode_picture_header(s, picture_number);
         break;
@@ -3001,11 +3060,13 @@ static void encode_picture(MpegEncContext *s, int picture_number)
     s->last_mv[0][0][0] = 0;
     s->last_mv[0][0][1] = 0;
 
+#ifdef CONFIG_RISKY
     if (s->codec_id==CODEC_ID_H263 || s->codec_id==CODEC_ID_H263P)
         s->gob_index = ff_h263_get_gob_height(s);
 
     if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame)
         ff_mpeg4_init_partitions(s);
+#endif
 
     s->resync_mb_x=0;
     s->resync_mb_y=0;
@@ -3038,6 +3099,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
             s->block_index[5]++;
 
             /* write gob / video packet header  */
+#ifdef CONFIG_RISKY
             if(s->rtp_mode){
                 int current_packet_size, is_gob_start;
                 
@@ -3078,6 +3140,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                     s->resync_mb_y=mb_y;
                 }
             }
+#endif
 
             if(  (s->resync_mb_x   == s->mb_x)
                && s->resync_mb_y+1 == s->mb_y){
@@ -3152,7 +3215,9 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                     
                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
                     s->mb_intra= 0;
+#ifdef CONFIG_RISKY
                     ff_mpeg4_set_direct_mv(s, mx, my);
+#endif
                     encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_DIRECT, pb, pb2, tex_pb, 
                                  &dmin, &next_block, mx, my);
                 }
@@ -3304,7 +3369,9 @@ static void encode_picture(MpegEncContext *s, int picture_number)
                     s->mb_intra= 0;
                     motion_x=s->b_direct_mv_table[xy][0];
                     motion_y=s->b_direct_mv_table[xy][1];
+#ifdef CONFIG_RISKY
                     ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
+#endif
                     break;
                 case MB_TYPE_BIDIR:
                     s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
@@ -3382,6 +3449,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
     }
     emms_c();
 
+#ifdef CONFIG_RISKY
     if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame)
         ff_mpeg4_merge_partitions(s);
 
@@ -3390,6 +3458,7 @@ static void encode_picture(MpegEncContext *s, int picture_number)
 
     if(s->codec_id==CODEC_ID_MPEG4) 
         ff_mpeg4_stuffing(&s->pb);
+#endif
 
     //if (s->gob_number)
     //    fprintf(stderr,"\nNumber of GOB: %d", s->gob_number);
@@ -3912,6 +3981,8 @@ AVCodec mpeg1video_encoder = {
     MPV_encode_end,
 };
 
+#ifdef CONFIG_RISKY
+
 AVCodec h263_encoder = {
     "h263",
     CODEC_TYPE_VIDEO,
@@ -3942,16 +4013,6 @@ AVCodec rv10_encoder = {
     MPV_encode_end,
 };
 
-AVCodec mjpeg_encoder = {
-    "mjpeg",
-    CODEC_TYPE_VIDEO,
-    CODEC_ID_MJPEG,
-    sizeof(MpegEncContext),
-    MPV_encode_init,
-    MPV_encode_picture,
-    MPV_encode_end,
-};
-
 AVCodec mpeg4_encoder = {
     "mpeg4",
     CODEC_TYPE_VIDEO,
@@ -4002,3 +4063,14 @@ AVCodec wmv1_encoder = {
     MPV_encode_end,
 };
 
+#endif
+
+AVCodec mjpeg_encoder = {
+    "mjpeg",
+    CODEC_TYPE_VIDEO,
+    CODEC_ID_MJPEG,
+    sizeof(MpegEncContext),
+    MPV_encode_init,
+    MPV_encode_picture,
+    MPV_encode_end,
+};

libavformat/Makefile

@@ -11,9 +11,14 @@ CFLAGS= $(OPTFLAGS) -Wall -g -I.. -I$(SRC_PATH) -I$(SRC_PATH)/libavcodec -DHAVE_
 OBJS= utils.o cutils.o allformats.o
 
 # mux and demuxes
-OBJS+=mpeg.o mpegts.o ffm.o crc.o img.o raw.o rm.o asf.o \
+OBJS+=mpeg.o mpegts.o ffm.o crc.o img.o raw.o rm.o \
       avienc.o avidec.o wav.o swf.o au.o gif.o mov.o jpeg.o dv.o \
       yuv4mpeg.o
+
+ifeq ($(CONFIG_RISKY),yes)
+OBJS+= asf.o
+endif
+
 # image formats
 OBJS+= pnm.o yuv.o
 # file I/O

libavformat/allformats.c

@@ -35,7 +35,9 @@ void av_register_all(void)
     img_init();
     raw_init();
     rm_init();
+#ifdef CONFIG_RISKY
     asf_init();
+#endif
     avienc_init();
     avidec_init();
     wav_init();