[FFmpeg-cvslog] avformat/aviobuf: return stored AVIO context error on avio_close

[Marton Balint]

ffmpeg | branch: master | Marton Balint <cus at passwd.hu> | Tue Nov 30 00:59:14 2021 +0100| [8a40cfa4dab461643f4f93f3340c897d708ea221] | committer: Marton Balint

avformat/aviobuf: return stored AVIO context error on avio_close

Otherwise IO errors at avio_flush() before closing may be lost.

Signed-off-by: Marton Balint <cus at passwd.hu>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8a40cfa4dab461643f4f93f3340c897d708ea221
---

 libavformat/aviobuf.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/libavformat/aviobuf.c b/libavformat/aviobuf.c
index 14688a2262..969c127b23 100644
--- a/libavformat/aviobuf.c
+++ b/libavformat/aviobuf.c
@@ -1231,6 +1231,7 @@ int avio_close(AVIOContext *s)
 {
     FFIOContext *const ctx = ffiocontext(s);
     URLContext *h;
+    int ret, error;
 
     if (!s)
         return 0;
@@ -1249,9 +1250,14 @@ int avio_close(AVIOContext *s)
                ctx->bytes_read, ctx->seek_count);
     av_opt_free(s);
 
+    error = s->error;
     avio_context_free(&s);
 
-    return ffurl_close(h);
+    ret = ffurl_close(h);
+    if (ret < 0)
+        return ret;
+
+    return error;
 }
 
 int avio_closep(AVIOContext **s)