lavc/qsvdec: Add GPU-accelerated memory copy support

GPU copy enables or disables GPU accelerated copying between video
and system memory. This may lead to a notable performance improvement.
Memory must be sequent and aligned with 128x64.

CMD:
ffmpeg -init_hw_device qsv=hw -filter_hw_device hw -c:v h264_qsv
                    -gpu_copy on -i input.h264 -f null -
or:
ffmpeg -c:v h264_qsv -gpu_copy on -i input.h264 -f null -

Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: ChaoX A Liu <chaox.a.liu@intel.com>
Signed-off-by: Zhong Li <zhong.li@intel.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/libavcodec/qsv_internal.h b/libavcodec/qsv_internal.h
index 8b44a9b6f4..37559270e5 100644
--- a/libavcodec/qsv_internal.h
+++ b/libavcodec/qsv_internal.h
@@ -127,16 +127,17 @@ enum AVPictureType ff_qsv_map_pictype(int mfx_pic_type);
 enum AVFieldOrder ff_qsv_map_picstruct(int mfx_pic_struct);
 
 int ff_qsv_init_internal_session(AVCodecContext *avctx, QSVSession *qs,
-                                 const char *load_plugins);
+                                 const char *load_plugins, int gpu_copy);
 
 int ff_qsv_close_internal_session(QSVSession *qs);
 
 int ff_qsv_init_session_device(AVCodecContext *avctx, mfxSession *psession,
-                               AVBufferRef *device_ref, const char *load_plugins);
+                               AVBufferRef *device_ref, const char *load_plugins,
+                               int gpu_copy);
 
 int ff_qsv_init_session_frames(AVCodecContext *avctx, mfxSession *session,
                                QSVFramesContext *qsv_frames_ctx,
-                               const char *load_plugins, int opaque);
+                               const char *load_plugins, int opaque, int gpu_copy);
 
 int ff_qsv_find_surface_idx(QSVFramesContext *ctx, QSVFrame *frame);