Support for 16:9 DV in QuickTime

Some files I have from circa year 2000 are 16:9 NTSC DV video
encoded as QuickTime with Radius SoftDV. This marked 4:3 videos
with the box 'dvc ' for NTSC or 'dvcp' for PAL, which are already
supported, but 16:9 videos as 'dvl ' or 'dvlp', which were not.

Adding these to the list for DV codec processing gives the
expected metadata and playback.

I have not tested PAL as I have no sample data, only NTSC.
Signed-off-by: Marton Balint <cus@passwd.hu>

libavformat/isom_tags.c

@@ -89,6 +89,8 @@ const AVCodecTag ff_codec_movvideo_tags[] = {
 
     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
+    { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'l', 'p') }, /* DV PAL 16:9 produced by Radius SoftDV */
+    { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'l', ' ') }, /* DV NTSC 16:9 produced by Radius SoftDV */
     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
     { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */