avcodec: map HNM4

Sample:
http://samples.mplayerhq.hu/game-formats/hnm/losteden-hnm4/BROCIME.HNMSigned-off-by: Jean-Baptiste Kempf <jb@videolan.org>

include/vlc_fourcc.h

@@ -172,6 +172,7 @@
 #define VLC_CODEC_YOP             VLC_FOURCC('Y','O','P','V')
 #define VLC_CODEC_JV              VLC_FOURCC('J','V','0','0')
 #define VLC_CODEC_DFA             VLC_FOURCC('D','F','I','A')
+#define VLC_CODEC_HNM4_VIDEO      VLC_FOURCC('H','N','M','4')
 
 /* Planar YUV 4:1:0 Y:V:U */
 #define VLC_CODEC_YV9             VLC_FOURCC('Y','V','U','9')

modules/codec/avcodec/fourcc.c

@@ -245,7 +245,9 @@ static const struct
     { VLC_CODEC_G2M4, AV_CODEC_ID_G2M, VIDEO_ES },
 #endif
     /* AV_CODEC_ID_WEBP */
-    /* AV_CODEC_ID_HNM4_VIDEO */
+#if LIBAVCODEC_VERSION_CHECK( 55, 8, 0, 8, 0 )
+    { VLC_CODEC_HNM4_VIDEO, AV_CODEC_ID_HNM4_VIDEO, VIDEO_ES },
+#endif
 #if LIBAVCODEC_VERSION_CHECK( 55, 24, 0, 37, 100 )
     { VLC_CODEC_HEVC, AV_CODEC_ID_HEVC, VIDEO_ES },
 #endif

src/misc/fourcc.c

@@ -1103,6 +1103,8 @@ static const staticentry_t p_list_video[] = {
 
     B(VLC_CODEC_DFA, "Chronomaster DFA"),
 
+    B(VLC_CODEC_HNM4_VIDEO, "Cryo Interactive Entertainment HNM4"),
+
     B(0, "")
 };
 static const staticentry_t p_list_audio[] = {