movenc: use correct tag for dvcpro hd

Signed-off-by: Mans Rullgard <mans@mansr.com>

libavformat/movenc.c

@@ -623,12 +623,23 @@ static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
 {
     int tag;
 
+    if (track->enc->width == 720) /* SD */
         if (track->enc->height == 480) /* NTSC */
             if  (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
             else                                         tag = MKTAG('d','v','c',' ');
         else if (track->enc->pix_fmt == PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
         else if (track->enc->pix_fmt == PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
         else                                             tag = MKTAG('d','v','p','p');
+    else if (track->enc->height == 720) /* HD 720 line */
+        if  (track->enc->time_base.den == 50)            tag = MKTAG('d','v','h','q');
+        else                                             tag = MKTAG('d','v','h','p');
+    else if (track->enc->height == 1080) /* HD 1080 line */
+        if  (track->enc->time_base.den == 25)            tag = MKTAG('d','v','h','5');
+        else                                             tag = MKTAG('d','v','h','6');
+    else {
+        av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
+        return 0;
+    }
 
     return tag;
 }