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examples: Add proper deallocations to avoid potential memory leaks

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Add proper deallocations in the error paths to avoid potential memory leaks.

Fixes: e7dfaf16a4 ("libavfilter: example audio filtering program")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Jiasheng Jiang
2025-08-06 15:07:21 +00:00
committed by Michael Niedermayer
parent 8b4e6ccb13
commit 39592f2bab
1 changed files with 8 additions and 1 deletions
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9
doc/examples/filter_audio.c
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@@ -294,6 +294,7 @@ int main(int argc, char *argv[])
md5 = av_md5_alloc();
if (!md5) {
av_frame_free(&frame);
fprintf(stderr, "Error allocating the MD5 context\n");
return 1;
}
@@ -301,8 +302,10 @@ int main(int argc, char *argv[])
/* Set up the filtergraph. */
err = init_filter_graph(&graph, &src, &sink);
if (err < 0) {
av_frame_free(&frame);
av_freep(&md5);
fprintf(stderr, "Unable to init filter graph:");
goto fail;
return 1;
}
/* the main filtering loop */
@@ -353,6 +356,10 @@ int main(int argc, char *argv[])
return 0;
fail:
avfilter_graph_free(&graph);
av_frame_free(&frame);
av_freep(&md5);
fprintf(stderr, "%s\n", av_err2str(err));
return 1;
}