[FFmpeg-cvslog] avcodec/libdav1d: free the Dav1dData packet on dav1d_send_data() failure

[James Almer]

ffmpeg | branch: release/4.4 | James Almer <jamrial at gmail.com> | Tue Feb  1 12:06:14 2022 -0300| [a4e1dd694014bd9314f63ddebc52ff2495c4f616] | committer: James Almer

avcodec/libdav1d: free the Dav1dData packet on dav1d_send_data() failure

We still own it on failure, and there's no point trying to feed it again.

This should address the issue reported in dav1d #383 and part of VLC #26259.

Signed-off-by: James Almer <jamrial at gmail.com>
Reviewed-by: Ronald S. Bultje <rsbultje at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a4e1dd694014bd9314f63ddebc52ff2495c4f616
---

 libavcodec/libdav1d.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/libdav1d.c b/libavcodec/libdav1d.c
index 305e04cef7..a9b57f526d 100644
--- a/libavcodec/libdav1d.c
+++ b/libavcodec/libdav1d.c
@@ -248,8 +248,10 @@ static int libdav1d_receive_frame(AVCodecContext *c, AVFrame *frame)
     if (res < 0) {
         if (res == AVERROR(EINVAL))
             res = AVERROR_INVALIDDATA;
-        if (res != AVERROR(EAGAIN))
+        if (res != AVERROR(EAGAIN)) {
+            dav1d_data_unref(data);
             return res;
+        }
     }
 
     res = dav1d_get_picture(dav1d->c, p);