> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> On Behalf Of Guo,
> Yejun
> Sent: Sunday, January 10, 2021 09:16 PM
> To: ffmpeg-devel@ffmpeg.org
> Cc: Guo, Yejun <yejun....@intel.com>
> Subject: [FFmpeg-devel] [PATCH V2] libavfilter/dnn: add batch mode for async
> execution
>
> the default number of batch_size is 1
>
> Signed-off-by: Xie, Lin <lin....@intel.com>
> Signed-off-by: Wu Zhiwen <zhiwen...@intel.com>
> Signed-off-by: Guo, Yejun <yejun....@intel.com>
> ---
> libavfilter/dnn/dnn_backend_openvino.c | 187 ++++++++++++++++++++-----
> libavfilter/dnn/dnn_backend_openvino.h | 1 +
> libavfilter/dnn/dnn_interface.c | 1 +
> libavfilter/dnn_interface.h | 2 +
> libavfilter/vf_dnn_processing.c | 36 ++++-
> 5 files changed, 194 insertions(+), 33 deletions(-)
>
[...]
> if (ff_inlink_acknowledge_status(inlink, &status, &pts)) {
> if (status == AVERROR_EOF) {
> - ff_outlink_set_status(outlink, status, pts);
> + int64_t out_pts = pts;
> + ret = flush_frame(outlink, pts, &out_pts);
> + ff_outlink_set_status(outlink, status, out_pts);
> return ret;
> }
> }
> --
> 2.17.1
Hi Yejun,
This patch works well for me.
Testing was carried on my machine, which CPU is i7-8700K 3.7Ghz and iGPU is
UHD630.
The patch was tested by using espcn super resolution model (950*540 video as
input), with async on and off. The fps increased from 11fps to 13fps (~18% up)
on CPU, from 8fps to 11fps (~37% up) on iGPU.
On CPU with async off:
./ffmpeg -i input_video.mp4 -vf
dnn_processing=dnn_backend=openvino:model=espcn1080p.xml:input=x:output=espcn/prediction:async=0:options=device=CPU\&batch_size=1
-y output_video.mp4
On CPU with async on:
./ffmpeg -i input_video.mp4 -vf
dnn_processing=dnn_backend=openvino:model=espcn1080p.xml:input=x:output=espcn/prediction:async=1:options=device=CPU\&batch_size=2
-y output_video.mp4
On GPU with async off:
./ffmpeg -i input_video.mp4 -vf
dnn_processing=dnn_backend=openvino:model=espcn1080p.xml:input=x:output=espcn/prediction:async=0:options=device=GPU\&batch_size=1
-y output_video.mp4
On GPU with async on:
./ffmpeg -i input_video.mp4 -vf
dnn_processing=dnn_backend=openvino:model=espcn1080p.xml:input=x:output=espcn/prediction:async=1:options=device=GPU\&batch_size=2
-y output_video.mp4
>
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