From 96138e8c8da4b9397e627c934a33c22988d1192b Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 20 Mar 2014 07:05:35 +0000 Subject: [PATCH] isom: only write the size if its non zero in mov_rewrite_dvd_sub_extradata() Sample-Id: NeroRecodeSample.mp4 --- libavformat/isom.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libavformat/isom.c b/libavformat/isom.c index 3f420e70ce..cade775d64 100644 --- a/libavformat/isom.c +++ b/libavformat/isom.c @@ -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);