From: softworkz <softwo...@hotmail.com>
Signed-off-by: softworkz <softwo...@hotmail.com>
---
doc/APIchanges | 3 +++
libavfilter/avfilter.c | 9 +++++++++
libavfilter/avfilter.h | 12 ++++++++++++
3 files changed, 24 insertions(+)
diff --git a/doc/APIchanges b/doc/APIchanges
index 75d66f87f3..d0869561f3 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -2,6 +2,9 @@ The last version increases of all libraries were on 2025-03-28
API changes, most recent first:
+2025-02-xx - xxxxxxxxxx - lavfi 10.10.100 - avfilter.h
+ Add avfilter_link_get_hw_frames_ctx().
+
2025-04-21 - xxxxxxxxxx - lavu 60.2.100 - log.h
Add AV_CLASS_CATEGORY_HWDEVICE.
diff --git a/libavfilter/avfilter.c b/libavfilter/avfilter.c
index 64c1075c40..c76d43a215 100644
--- a/libavfilter/avfilter.c
+++ b/libavfilter/avfilter.c
@@ -989,6 +989,15 @@ enum AVMediaType avfilter_pad_get_type(const AVFilterPad
*pads, int pad_idx)
return pads[pad_idx].type;
}
+AVBufferRef *avfilter_link_get_hw_frames_ctx(AVFilterLink *link)
+{
+ FilterLink *plink = ff_filter_link(link);
+ if (plink->hw_frames_ctx)
+ return av_buffer_ref(plink->hw_frames_ctx);
+
+ return NULL;
+}
+
static int default_filter_frame(AVFilterLink *link, AVFrame *frame)
{
return ff_filter_frame(link->dst->outputs[0], frame);
diff --git a/libavfilter/avfilter.h b/libavfilter/avfilter.h
index a89d3cf658..f85929dc5c 100644
--- a/libavfilter/avfilter.h
+++ b/libavfilter/avfilter.h
@@ -96,6 +96,18 @@ const char *avfilter_pad_get_name(const AVFilterPad *pads,
int pad_idx);
*/
enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx);
+/**
+ * Get the hardware frames context of a filter link.
+ *
+ * @param link an AVFilterLink
+ *
+ * @return a ref-counted copy of the link's hw_frames_ctx field if there is
+ * a hardware frames context associated with the link or NULL
otherwise.
+ * The returned AVBufferRef needs to be released with av_buffer_unref()
+ * when it is no longer used.
+ */
+AVBufferRef* avfilter_link_get_hw_frames_ctx(AVFilterLink *link);
+
/**
* Lists of formats / etc. supported by an end of a link.
*
--
ffmpeg-codebot
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