On 11/19/2020 4:40 AM, Anton Khirnov wrote:
Quoting Gil Pedersen (2020-11-18 14:05:16)
Signed-off-by: Gil Pedersen <g...@gpost.dk>
---
  libavcodec/wavpack.c | 7 +++----
  1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index f77548e5a5..58122c948c 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -1024,13 +1024,12 @@ static int update_thread_context(AVCodecContext *dst, 
const AVCodecContext *src)
              return ret;
      }
- av_buffer_unref(&fdst->dsd_ref);
      fdst->dsdctx = NULL;
      fdst->dsd_channels = 0;
+    ret = av_buffer_replace(&fdst->dsd_ref, fsrc->dsd_ref);
+    if (ret < 0)
+        return ret;
      if (fsrc->dsd_ref) {
-        fdst->dsd_ref = av_buffer_ref(fsrc->dsd_ref);
-        if (!fdst->dsd_ref)
-            return AVERROR(ENOMEM);
          fdst->dsdctx = (DSDContext*)fdst->dsd_ref->data;
          fdst->dsd_channels = fsrc->dsd_channels;
      }
--
2.17.1

Ok.

Applied.
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