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authorJanne Grunau <janne-libav@jannau.net>2012-10-09 15:20:15 +0200
committerJanne Grunau <janne-libav@jannau.net>2012-10-09 15:39:05 +0200
commit18ff4d20201ae69fdeb2da2c90bdcbd33f7ac025 (patch)
tree200582b5430b871b85f9fc5b51be8a9c893e7af7 /avconv_opt.c
parent4ffbe3f3a5d9892841d9bc31d859916c2c61123f (diff)
avconv: simplify memory allocation in copy_chapters
Make just a single reallocation per call instead of one reallocation per copied chapters. This fixes possible memory leaks on realloc failures. Also correct the allocation since it needs multiples of sizeof(AVChapter*) and not sizeof(AVChapter). Fixes CID700633 and CID700719.
Diffstat (limited to 'avconv_opt.c')
-rw-r--r--avconv_opt.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/avconv_opt.c b/avconv_opt.c
index 108e510516..f8a76c0978 100644
--- a/avconv_opt.c
+++ b/avconv_opt.c
@@ -1085,8 +1085,14 @@ static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
{
AVFormatContext *is = ifile->ctx;
AVFormatContext *os = ofile->ctx;
+ AVChapter **tmp;
int i;
+ tmp = av_realloc(os->chapters, sizeof(*os->chapters) * (is->nb_chapters + os->nb_chapters));
+ if (!tmp)
+ return AVERROR(ENOMEM);
+ os->chapters = tmp;
+
for (i = 0; i < is->nb_chapters; i++) {
AVChapter *in_ch = is->chapters[i], *out_ch;
int64_t ts_off = av_rescale_q(ofile->start_time - ifile->ts_offset,
@@ -1112,11 +1118,7 @@ static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
if (copy_metadata)
av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
- os->nb_chapters++;
- os->chapters = av_realloc(os->chapters, sizeof(AVChapter) * os->nb_chapters);
- if (!os->chapters)
- return AVERROR(ENOMEM);
- os->chapters[os->nb_chapters - 1] = out_ch;
+ os->chapters[os->nb_chapters++] = out_ch;
}
return 0;
}