avcodec: add Gremlin Digital Video decoder

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

libavcodec/Makefile

@@ -308,6 +308,7 @@ OBJS-$(CONFIG_G723_1_DECODER)          += g723_1dec.o g723_1.o \
 OBJS-$(CONFIG_G723_1_ENCODER)          += g723_1enc.o g723_1.o \
                                           acelp_vectors.o celp_filters.o celp_math.o
 OBJS-$(CONFIG_G729_DECODER)            += g729dec.o lsp.o celp_math.o celp_filters.o acelp_filters.o acelp_pitch_delay.o acelp_vectors.o g729postfilter.o
+OBJS-$(CONFIG_GDV_DECODER)             += gdv.o
 OBJS-$(CONFIG_GIF_DECODER)             += gifdec.o lzw.o
 OBJS-$(CONFIG_GIF_ENCODER)             += gif.o lzwenc.o
 OBJS-$(CONFIG_GREMLIN_DPCM_DECODER)    += dpcm.o

libavcodec/allcodecs.c

@@ -195,6 +195,7 @@ static void register_all(void)
     REGISTER_DECODER(FRAPS,             fraps);
     REGISTER_DECODER(FRWU,              frwu);
     REGISTER_DECODER(G2M,               g2m);
+    REGISTER_DECODER(GDV,               gdv);
     REGISTER_ENCDEC (GIF,               gif);
     REGISTER_ENCDEC (H261,              h261);
     REGISTER_ENCDEC (H263,              h263);

libavcodec/avcodec.h

@@ -446,6 +446,7 @@ enum AVCodecID {
     AV_CODEC_ID_MSCC,
     AV_CODEC_ID_SRGC,
     AV_CODEC_ID_SVG,
+    AV_CODEC_ID_GDV,
 
     /* various PCM "codecs" */
     AV_CODEC_ID_FIRST_AUDIO = 0x10000,     ///< A dummy id pointing at the start of audio codecs

libavcodec/codec_desc.c

@@ -1410,6 +1410,13 @@ static const AVCodecDescriptor codec_descriptors[] = {
         .long_name = NULL_IF_CONFIG_SMALL("Screen Recorder Gold Codec"),
         .props     = AV_CODEC_PROP_INTRA_ONLY | AV_CODEC_PROP_LOSSLESS,
     },
+    {
+        .id        = AV_CODEC_ID_GDV,
+        .type      = AVMEDIA_TYPE_VIDEO,
+        .name      = "gdv",
+        .long_name = NULL_IF_CONFIG_SMALL("Gremlin Digital Video"),
+        .props     = AV_CODEC_PROP_LOSSY,
+    },
 
     /* image codecs */
     {

libavcodec/version.h

@@ -28,7 +28,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR  57
-#define LIBAVCODEC_VERSION_MINOR  97
+#define LIBAVCODEC_VERSION_MINOR  98
 #define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \