Module: libav
Branch: master
Commit: 96138e8c8da4b9397e627c934a33c22988d1192b

Author:    Michael Niedermayer <[email protected]>
Committer: Vittorio Giovara <[email protected]>
Date:      Thu Mar 20 07:05:35 2014 +0000

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 3f420e7..cade775 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);

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