---
libavcodec/avcodec.h | 11 +++++++++++
libavcodec/utils.c | 2 ++
2 files changed, 13 insertions(+)
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index fe3366b..cfd299d 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -2979,6 +2979,17 @@ typedef struct AVCodecContext {
AVPacketSideData *coded_side_data;
int nb_coded_side_data;
+ /**
+ * Encoding only.
+ *
+ * For hardware encoders configured to use a hwaccel pixel format, this
+ * field should be set by the caller to a reference to the
AVHWFramesContext
+ * describing input frames.
+ *
+ * This field should be set before avcodec_open2() is called and is
+ * afterwards owned and managed by libavcodec.
+ */
+ AVBufferRef *hw_frames_ctx;
} AVCodecContext;
/**
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index e06ee66..327cad3 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1639,6 +1639,8 @@ av_cold int avcodec_close(AVCodecContext *avctx)
av_freep(&avctx->coded_side_data);
avctx->nb_coded_side_data = 0;
+ av_buffer_unref(&avctx->hw_frames_ctx);
+
if (avctx->priv_data && avctx->codec && avctx->codec->priv_class)
av_opt_free(avctx->priv_data);
av_opt_free(avctx);
--
2.0.0
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