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-rw-r--r--libavutil/hwcontext.c14
-rw-r--r--libavutil/hwcontext.h4
-rw-r--r--libavutil/hwcontext_internal.h5
-rw-r--r--libavutil/version.h2
4 files changed, 22 insertions, 3 deletions
diff --git a/libavutil/hwcontext.c b/libavutil/hwcontext.c
index ed09c49..5a22194 100644
--- a/libavutil/hwcontext.c
+++ b/libavutil/hwcontext.c
@@ -458,6 +458,11 @@ int av_hwframe_get_buffer(AVBufferRef *hwframe_ref, AVFrame *frame, int flags)
// and map the frame immediately.
AVFrame *src_frame;
+ frame->format = ctx->format;
+ frame->hw_frames_ctx = av_buffer_ref(hwframe_ref);
+ if (!frame->hw_frames_ctx)
+ return AVERROR(ENOMEM);
+
src_frame = av_frame_alloc();
if (!src_frame)
return AVERROR(ENOMEM);
@@ -467,7 +472,8 @@ int av_hwframe_get_buffer(AVBufferRef *hwframe_ref, AVFrame *frame, int flags)
if (ret < 0)
return ret;
- ret = av_hwframe_map(frame, src_frame, 0);
+ ret = av_hwframe_map(frame, src_frame,
+ ctx->internal->source_allocation_map_flags);
if (ret) {
av_log(ctx, AV_LOG_ERROR, "Failed to map frame into derived "
"frame context: %d.\n", ret);
@@ -819,6 +825,12 @@ int av_hwframe_ctx_create_derived(AVBufferRef **derived_frame_ctx,
goto fail;
}
+ dst->internal->source_allocation_map_flags =
+ flags & (AV_HWFRAME_MAP_READ |
+ AV_HWFRAME_MAP_WRITE |
+ AV_HWFRAME_MAP_OVERWRITE |
+ AV_HWFRAME_MAP_DIRECT);
+
ret = AVERROR(ENOSYS);
if (src->internal->hw_type->frames_derive_from)
ret = src->internal->hw_type->frames_derive_from(dst, src, flags);
diff --git a/libavutil/hwcontext.h b/libavutil/hwcontext.h
index 37e8831..edf12cc 100644
--- a/libavutil/hwcontext.h
+++ b/libavutil/hwcontext.h
@@ -566,7 +566,9 @@ int av_hwframe_map(AVFrame *dst, const AVFrame *src, int flags);
* AVHWFramesContext on.
* @param source_frame_ctx A reference to an existing AVHWFramesContext
* which will be mapped to the derived context.
- * @param flags Currently unused; should be set to zero.
+ * @param flags Some combination of AV_HWFRAME_MAP_* flags, defining the
+ * mapping parameters to apply to frames which are allocated
+ * in the derived device.
* @return Zero on success, negative AVERROR code on failure.
*/
int av_hwframe_ctx_create_derived(AVBufferRef **derived_frame_ctx,
diff --git a/libavutil/hwcontext_internal.h b/libavutil/hwcontext_internal.h
index 0a0c4e8..68f78c0 100644
--- a/libavutil/hwcontext_internal.h
+++ b/libavutil/hwcontext_internal.h
@@ -121,6 +121,11 @@ struct AVHWFramesInternal {
* context it was derived from.
*/
AVBufferRef *source_frames;
+ /**
+ * Flags to apply to the mapping from the source to the derived
+ * frame context when trying to allocate in the derived context.
+ */
+ int source_allocation_map_flags;
};
typedef struct HWMapDescriptor {
diff --git a/libavutil/version.h b/libavutil/version.h
index 322b683..308d16f 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -80,7 +80,7 @@
#define LIBAVUTIL_VERSION_MAJOR 55
-#define LIBAVUTIL_VERSION_MINOR 65
+#define LIBAVUTIL_VERSION_MINOR 66
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
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