Merge commit '93afb6c9'

* commit '93afb6c9':
  avconv: set output avg_frame_rate when known

Conflicts:
	ffmpeg.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

ffmpeg.c

@@ -2673,6 +2673,8 @@ static int transcode_init(void)
                            av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
                 enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format;
 
+                ost->st->avg_frame_rate = ost->frame_rate;
+
                 if (!dec_ctx ||
                     enc_ctx->width   != dec_ctx->width  ||
                     enc_ctx->height  != dec_ctx->height ||

tests/ref/lavf/wtv

-fc6436e36e32a2c5c01f3e31df1c2cd1 *./tests/data/lavf/lavf.wtv
+b74b14ee41830aed90380bf6252dcfdb *./tests/data/lavf/lavf.wtv
 413696 ./tests/data/lavf/lavf.wtv
 ./tests/data/lavf/lavf.wtv CRC=0x71287e25