isom: only write the size if its non zero in mov_rewrite_dvd_sub_extradata()

Sample-Id: NeroRecodeSample.mp4
This commit is contained in:
Michael Niedermayer 2014-03-20 07:05:35 +00:00 committed by Vittorio Giovara
parent 9bd4a9f4ee
commit 96138e8c8d
1 changed files with 4 additions and 2 deletions

View File

@ -446,8 +446,10 @@ static int mov_rewrite_dvd_sub_extradata(AVStream *st)
if (st->codec->extradata_size != 64)
return 0;
snprintf(buf, sizeof(buf), "size: %dx%d\npalette: ",
st->codec->width, st->codec->height);
if (st->codec->width > 0 && st->codec->height > 0)
snprintf(buf, sizeof(buf), "size: %dx%d\n",
st->codec->width, st->codec->height);
av_strlcat(buf, "palette: ", sizeof(buf));
for (i = 0; i < 16; i++) {
uint32_t yuv = AV_RB32(src + i * 4);