riff: Add MNM4 FourCC as mpeg4

diff --git a/libavformat/riff.c b/libavformat/riff.c
index 6e77453b863c50c30168ab0d55acf2398dd2d94c..e1f76b266035c78f7f50021125739b3e069788f6 100644 (file)
--- a/libavformat/riff.c
+++ b/libavformat/riff.c
@@ -110,6 +110,7 @@ const AVCodecTag ff_codec_bmp_tags[] = {
     { AV_CODEC_ID_MPEG4,        MKTAG('P', 'L', 'V', '1') }, /* Pelco DVR MPEG-4 */
     { AV_CODEC_ID_MPEG4,        MKTAG('G', 'L', 'V', '4') },
     { AV_CODEC_ID_MPEG4,        MKTAG('G', 'M', 'P', '4') }, /* GeoVision camera */
+    { AV_CODEC_ID_MPEG4,        MKTAG('M', 'N', 'M', '4') }, /* March Networks DVR */
     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('M', 'P', '4', '3') },
     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('D', 'I', 'V', '3') },
     { AV_CODEC_ID_MSMPEG4V3,    MKTAG('M', 'P', 'G', '3') },