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avfilter: add overlay vaapi filter

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Overlay one video on the top of another.

It takes two inputs and has one output. The first input is the "main" video on
which the second input is overlaid. This filter requires same memory layout for
all the inputs.

An example command to use this filter to overlay overlay.mp4 at the top-left
corner of the main.mp4:

ffmpeg -init_hw_device vaapi=foo:/dev/dri/renderD128 \
-hwaccel vaapi -hwaccel_device foo -hwaccel_output_format vaapi -c:v h264 -i main.mp4 \
-hwaccel vaapi -hwaccel_device foo -hwaccel_output_format vaapi -c:v h264 -i overlay.mp4 \
-filter_complex "[0:v][1:v]overlay_vaapi=0:0:100💯0.5[t1]" \
-map "[t1]" -an -c:v h264_vaapi -y out_vaapi.mp4

Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>
Signed-off-by: Xinpeng Sun <xinpeng.sun@intel.com>
Signed-off-by: Zachary Zhou <zachary.zhou@intel.com>
Signed-off-by: Fei Wang <fei.w.wang@intel.com>
Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
This commit is contained in:
Xinpeng Sun
2021-11-22 15:53:50 +08:00
committed by Haihao Xiang
parent dcc9454ab9
commit 516496069d
6 changed files with 479 additions and 1 deletions
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1
libavfilter/allfilters.c
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@@ -358,6 +358,7 @@ extern const AVFilter ff_vf_oscilloscope;
extern const AVFilter ff_vf_overlay;
extern const AVFilter ff_vf_overlay_opencl;
extern const AVFilter ff_vf_overlay_qsv;
extern const AVFilter ff_vf_overlay_vaapi;
extern const AVFilter ff_vf_overlay_vulkan;
extern const AVFilter ff_vf_overlay_cuda;
extern const AVFilter ff_vf_owdenoise;