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Avoid segfault for empty input files

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Originally committed as revision 20265 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2009-10-17 20:37:58 +00:00
parent c69b3e0dc1
commit a4cb675124
1 changed files with 6 additions and 0 deletions
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6
libavformat/utils.c
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@ -469,6 +469,12 @@ int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
/* read probe data */
pd->buf= av_realloc(pd->buf, probe_size + AVPROBE_PADDING_SIZE);
pd->buf_size = get_buffer(pb, pd->buf, probe_size);
if ((int)pd->buf_size < 0) {
err = pd->buf_size;
goto fail;
}
memset(pd->buf+pd->buf_size, 0, AVPROBE_PADDING_SIZE);
if (url_fseek(pb, 0, SEEK_SET) < 0) {
url_fclose(pb);