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-rw-r--r--libavcodec/frame_thread_encoder.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/frame_thread_encoder.c b/libavcodec/frame_thread_encoder.c
index 55756c4c54..949bc69f81 100644
--- a/libavcodec/frame_thread_encoder.c
+++ b/libavcodec/frame_thread_encoder.c
@@ -209,8 +209,9 @@ int ff_frame_thread_encoder_init(AVCodecContext *avctx, AVDictionary *options){
int ret = av_opt_copy(thread_avctx->priv_data, avctx->priv_data);
if (ret < 0)
goto fail;
- } else
+ } else if (avctx->codec->priv_data_size) {
memcpy(thread_avctx->priv_data, avctx->priv_data, avctx->codec->priv_data_size);
+ }
thread_avctx->thread_count = 1;
thread_avctx->active_thread_type &= ~FF_THREAD_FRAME;