mpegts: identify h264 mvc streams

This fixes missdetecting such streams as something else like AAC
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/mpegts.c

@@ -674,6 +674,7 @@ static const StreamType ISO_types[] = {
     { 0x11, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_AAC_LATM   }, /* LATM syntax */
 #endif
     { 0x1b, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_H264       },
+    { 0x20, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_H264       },
     { 0x24, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_HEVC       },
     { 0x42, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_CAVS       },
     { 0xd1, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_DIRAC      },