avcodec: add FM Screen Capture Codec decoder

Signed-off-by: Paul B Mahol <onemda@gmail.com>

Changelog

@@ -22,6 +22,7 @@ version <next>:
 - threshold filter
 - midequalizer filter
 - Optimal Huffman tables for (M)JPEG encoding
+- FM Screen Capture Codec decoder
 
 version 3.2:
 - libopenmpt demuxer

doc/general.texi

@@ -716,6 +716,7 @@ following image formats are supported:
 @item Flash Screen Video v2  @tab  X  @tab  X
 @item Flash Video (FLV)      @tab  X  @tab  X
     @tab Sorenson H.263 used in Flash
+@item FM Screen Capture Codec  @tab     @tab  X
 @item Forward Uncompressed   @tab     @tab  X
 @item Fraps                  @tab     @tab  X
 @item Go2Meeting             @tab     @tab  X

libavcodec/Makefile

@@ -293,6 +293,7 @@ OBJS-$(CONFIG_FLASHSV_ENCODER)         += flashsvenc.o
 OBJS-$(CONFIG_FLASHSV2_ENCODER)        += flashsv2enc.o
 OBJS-$(CONFIG_FLASHSV2_DECODER)        += flashsv.o
 OBJS-$(CONFIG_FLIC_DECODER)            += flicvideo.o
+OBJS-$(CONFIG_FMVC_DECODER)            += fmvc.o
 OBJS-$(CONFIG_FOURXM_DECODER)          += 4xm.o
 OBJS-$(CONFIG_FRAPS_DECODER)           += fraps.o
 OBJS-$(CONFIG_FRWU_DECODER)            += frwu.o

libavcodec/allcodecs.c

@@ -192,6 +192,7 @@ void avcodec_register_all(void)
     REGISTER_ENCDEC (FLASHSV2,          flashsv2);
     REGISTER_DECODER(FLIC,              flic);
     REGISTER_ENCDEC (FLV,               flv);
+    REGISTER_DECODER(FMVC,              fmvc);
     REGISTER_DECODER(FOURXM,            fourxm);
     REGISTER_DECODER(FRAPS,             fraps);
     REGISTER_DECODER(FRWU,              frwu);

libavcodec/avcodec.h

@@ -414,6 +414,7 @@ enum AVCodecID {
     AV_CODEC_ID_PSD,
     AV_CODEC_ID_PIXLET,
     AV_CODEC_ID_SPEEDHQ,
+    AV_CODEC_ID_FMVC,
 
     /* various PCM "codecs" */
     AV_CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at the start of audio codecs

libavcodec/codec_desc.c

@@ -1353,6 +1353,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
         .long_name = NULL_IF_CONFIG_SMALL("Apple Pixlet"),
         .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSY,
     },
+    {
+        .id        = AV_CODEC_ID_FMVC,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "fmvc",
+        .long_name = NULL_IF_CONFIG_SMALL("FM Screen Capture Codec"),
+        .props     = AV_CODEC_PROP_LOSSLESS,
+    },
 
     /* image codecs */
     {

libavcodec/version.h

@@ -28,7 +28,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR  57
-#define LIBAVCODEC_VERSION_MINOR  78
+#define LIBAVCODEC_VERSION_MINOR  79
 #define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \

libavformat/riff.c

@@ -448,6 +448,7 @@ const AVCodecTag ff_codec_bmp_tags[] = {
     { AV_CODEC_ID_SPEEDHQ,      MKTAG('S', 'H', 'Q', '5') },
     { AV_CODEC_ID_SPEEDHQ,      MKTAG('S', 'H', 'Q', '7') },
     { AV_CODEC_ID_SPEEDHQ,      MKTAG('S', 'H', 'Q', '9') },
+    { AV_CODEC_ID_FMVC,         MKTAG('F', 'M', 'V', 'C') },
 
     { AV_CODEC_ID_NONE,         0 }
 };