allow to enable or disable every bitstream filters individually

Original patch by Jason Millard   jsm174 _at_ gmail
Date: On Fri, 11 May 2007 11:14:01 -0400
Subject: [FFmpeg-devel] enable/disable bitstream filters?

Originally committed as revision 9010 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -155,6 +155,9 @@ show_help(){
   echo "  --enable-parser=NAME     enables parser NAME"
   echo "  --disable-parser=NAME    disables parser NAME"
   echo "  --disable-parsers        disables all parsers"
+  echo "  --enable-bsf=NAME        enables bitstream filter NAME"
+  echo "  --disable-bsf=NAME       disables bitstream filter NAME"
+  echo "  --disable-bsfs           disables all bitstream filters"
   echo "  --enable-protocol=NAME   enables protocol NAME"
   echo "  --disable-protocol=NAME  disables protocol NAME"
   echo "  --disable-protocols      disables all protocols"
@@ -554,6 +557,7 @@ CONFIG_LIST='
     encoders
     decoders
     parsers
+    bsfs
     muxers
     demuxers
     audio_beos
@@ -908,11 +912,12 @@ FFMPEG_CONFIGURATION="$@"
 ENCODER_LIST=`sed -n 's/^[^#]*ENC.*, *\(.*\)).*/\1_encoder/p' "$source_path/libavcodec/allcodecs.c"`
 DECODER_LIST=`sed -n 's/^[^#]*DEC.*, *\(.*\)).*/\1_decoder/p' "$source_path/libavcodec/allcodecs.c"`
 PARSER_LIST=`sed -n 's/^[^#]*PARSER.*, *\(.*\)).*/\1_parser/p' "$source_path/libavcodec/allcodecs.c"`
+BSF_LIST=`sed -n 's/^[^#]*BSF.*, *\(.*\)).*/\1_bsf/p' "$source_path/libavcodec/allcodecs.c"`
 MUXER_LIST=`sed -n 's/^[^#]*_MUX.*, *\(.*\)).*/\1_muxer/p' "$source_path/libavformat/allformats.c"`
 DEMUXER_LIST=`sed -n 's/^[^#]*DEMUX.*, *\(.*\)).*/\1_demuxer/p' "$source_path/libavformat/allformats.c"`
 PROTOCOL_LIST=`sed -n 's/^[^#]*PROTOCOL.*, *\(.*\)).*/\1_protocol/p' "$source_path/libavformat/allformats.c"`
 
-enable $ENCODER_LIST $DECODER_LIST $PARSER_LIST $MUXER_LIST $DEMUXER_LIST $PROTOCOL_LIST
+enable $ENCODER_LIST $DECODER_LIST $PARSER_LIST $MUXER_LIST $DEMUXER_LIST $PROTOCOL_LIST $BSF_LIST
 
 die_unknown(){
     echo "Unknown option \"$1\"."
@@ -979,12 +984,14 @@ for opt do
   ;;
   --disable-parsers) disable $PARSER_LIST
   ;;
+  --disable-bsfs) disable $BSF_LIST
+  ;;
   --disable-protocols) disable $PROTOCOL_LIST
   ;;
   --enable-*=*|--disable-*=*)
   eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`
   case "$thing" in
-      encoder|decoder|muxer|demuxer|parser|protocol) $action ${optval}_${thing} ;;
+      encoder|decoder|muxer|demuxer|parser|bsf|protocol) $action ${optval}_${thing} ;;
       *) die_unknown "$opt" ;;
   esac
   ;;
@@ -1816,11 +1823,12 @@ enabled_any $DECODER_LIST  && enable decoders
 enabled_any $MUXER_LIST    && enable muxers
 enabled_any $DEMUXER_LIST  && enable demuxers
 enabled_any $PROTOCOL_LIST && enable protocols
+enabled_any $BSF_LIST      && enable bsfs
 
 enabled_any $THREADS_LIST  && enable threads
 
 check_deps $CONFIG_LIST $HAVE_LIST $DECODER_LIST $ENCODER_LIST $PARSER_LIST \
-    $DEMUXER_LIST $MUXER_LIST $PROTOCOL_LIST
+    $BSF_LIST $DEMUXER_LIST $MUXER_LIST $PROTOCOL_LIST
 
 enabled libogg    && append pkg_requires "ogg >= 1.1"
 enabled libtheora && append pkg_requires "theora"
@@ -2040,7 +2048,7 @@ else
 fi
 
 
-for part in $DECODER_LIST $ENCODER_LIST $PARSER_LIST $DEMUXER_LIST $MUXER_LIST $PROTOCOL_LIST; do
+for part in $DECODER_LIST $ENCODER_LIST $PARSER_LIST $BSF_LIST $DEMUXER_LIST $MUXER_LIST $PROTOCOL_LIST; do
     ucname="`toupper $part`"
     config_name="CONFIG_$ucname"
     enabled_name="ENABLE_$ucname"

libavcodec/Makefile

@@ -302,6 +302,14 @@ OBJS-$(CONFIG_MPEGVIDEO_PARSER)        += mpegvideo_parser.o
 OBJS-$(CONFIG_PNM_PARSER)              += pnm_parser.o pnm.o
 OBJS-$(CONFIG_VC1_PARSER)              += vc1_parser.o
 
+OBJS-$(CONFIG_DUMP_EXTRADATA_BSF)      += bitstream_filter.o
+OBJS-$(CONFIG_REMOVE_EXTRADATA_BSF)    += bitstream_filter.o
+OBJS-$(CONFIG_NOISE_BSF)               += bitstream_filter.o
+OBJS-$(CONFIG_MP3_HEADER_COMPRESS_BSF) += bitstream_filter.o
+OBJS-$(CONFIG_MP3_HEADER_DECOMPRESS_BSF) += bitstream_filter.o
+OBJS-$(CONFIG_MJPEGA_DUMP_HEADER_BSF)  += mjpeg.o
+OBJS-$(CONFIG_IMX_DUMP_HEADER_BSF)     += mpeg12.o
+
 OBJS-$(HAVE_PTHREADS)                  += pthread.o
 OBJS-$(HAVE_W32THREADS)                += w32thread.o
 OBJS-$(HAVE_OS2THREADS)                += os2thread.o

libavcodec/allcodecs.c

@@ -34,6 +34,8 @@
 
 #define REGISTER_PARSER(X,x) \
           if(ENABLE_##X##_PARSER)  av_register_codec_parser(&x##_parser)
+#define REGISTER_BSF(X,x) \
+          if(ENABLE_##X##_BSF)     av_register_bitstream_filter(&x##_bsf)
 
 /**
  * Register all the codecs, parsers and bitstream filters which were enabled at
@@ -273,12 +275,13 @@ void avcodec_register_all(void)
     REGISTER_PARSER (PNM, pnm);
     REGISTER_PARSER (VC1, vc1);
 
-    av_register_bitstream_filter(&dump_extradata_bsf);
-    av_register_bitstream_filter(&remove_extradata_bsf);
-    av_register_bitstream_filter(&noise_bsf);
-    av_register_bitstream_filter(&mp3_header_compress_bsf);
-    av_register_bitstream_filter(&mp3_header_decompress_bsf);
-    av_register_bitstream_filter(&mjpega_dump_header_bsf);
-    av_register_bitstream_filter(&imx_dump_header_bsf);
+    /* bitstream filters */
+    REGISTER_BSF    (DUMP_EXTRADATA, dump_extradata);
+    REGISTER_BSF    (REMOVE_EXTRADATA, remove_extradata);
+    REGISTER_BSF    (NOISE, noise);
+    REGISTER_BSF    (MP3_HEADER_COMPRESS, mp3_header_compress);
+    REGISTER_BSF    (MP3_HEADER_DECOMPRESS, mp3_header_decompress);
+    REGISTER_BSF    (MJPEGA_DUMP_HEADER, mjpega_dump_header);
+    REGISTER_BSF    (IMX_DUMP_HEADER, imx_dump_header);
 }
 

libavcodec/bitstream_filter.c

@@ -253,32 +253,42 @@ static int mp3_header_decompress(AVBitStreamFilterContext *bsfc, AVCodecContext
     return 1;
 }
 
+#ifdef CONFIG_DUMP_EXTRADATA_BSF
 AVBitStreamFilter dump_extradata_bsf={
     "dump_extra",
     0,
     dump_extradata,
 };
+#endif
 
+#ifdef CONFIG_REMOVE_EXTRADATA_BSF
 AVBitStreamFilter remove_extradata_bsf={
     "remove_extra",
     0,
     remove_extradata,
 };
+#endif
 
+#ifdef CONFIG_NOISE_BSF
 AVBitStreamFilter noise_bsf={
     "noise",
     sizeof(int),
     noise,
 };
+#endif
 
+#ifdef CONFIG_MP3_HEADER_COMPRESS_BSF
 AVBitStreamFilter mp3_header_compress_bsf={
     "mp3comp",
     0,
     mp3_header_compress,
 };
+#endif
 
+#ifdef CONFIG_MP3_HEADER_DECOMPRESS_BSF
 AVBitStreamFilter mp3_header_decompress_bsf={
     "mp3decomp",
     0,
     mp3_header_decompress,
 };
+#endif

libavcodec/mjpeg.c

@@ -2564,8 +2564,10 @@ AVCodec ljpeg_encoder = { //FIXME avoid MPV_* lossless jpeg shouldnt need them
 };
 #endif
 
+#ifdef CONFIG_MJPEGA_DUMP_HEADER_BSF
 AVBitStreamFilter mjpega_dump_header_bsf = {
     "mjpegadump",
     0,
     mjpega_dump_header,
 };
+#endif

libavcodec/mpeg12.c

@@ -3354,6 +3354,7 @@ AVCodec mpeg_xvmc_decoder = {
 
 #endif
 
+#ifdef CONFIG_IMX_DUMP_HEADER_BSF
 static int imx_dump_header(AVBitStreamFilterContext *bsfc, AVCodecContext *avctx, const char *args,
                            uint8_t **poutbuf, int *poutbuf_size,
                            const uint8_t *buf, int buf_size, int keyframe)
@@ -3382,6 +3383,7 @@ AVBitStreamFilter imx_dump_header_bsf = {
     0,
     imx_dump_header,
 };
+#endif
 
 /* this is ugly i know, but the alternative is too make
    hundreds of vars global and prefix them with ff_mpeg1_