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avfilter/graphdump: Don't return truncated string

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Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-08-26 13:31:06 +02:00
parent 48348cd4ab
commit 76ff9640be
1 changed files with 4 additions and 2 deletions
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6
libavfilter/graphdump.c
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@ -159,8 +159,10 @@ char *avfilter_graph_dump(AVFilterGraph *graph, const char *options)
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_COUNT_ONLY);
avfilter_graph_dump_to_buf(&buf, graph);
av_bprint_init(&buf, buf.len + 1, buf.len + 1);
dump = av_malloc(buf.len + 1);
if (!dump)
return NULL;
av_bprint_init_for_buffer(&buf, dump, buf.len + 1);
avfilter_graph_dump_to_buf(&buf, graph);
av_bprint_finalize(&buf, &dump);
return dump;
}