[FFmpeg-devel] [Patch] Auto Insert of hwupload_cuda filter

[Yogender Gupta]

Currently combining CPU and CUDA filters requires insertion of hwupload and download filters. I am trying to simply this by auto insertion of these filters. This patch is for hwupload_cuda, but I want to do this for hwdownload as well.

The attached patch automatically inserts hwupload_cuda filter when it detects a GPU filter  after a CPU component.

Before the patch
ffmpeg.exe -y -i traffic_flow_1280x720_420.y4m -vf "hwupload_cuda, scale_npp=176:144" out.h264

After the patch the command line works without inserting the hwupload_cuda filter (auto inserted by ffmpeg)
ffmpeg.exe -y -i traffic_flow_1280x720_420.y4m -vf "scale_npp=176:144" out.h264

Thanks,
Yogender

-----------------------------------------------------------------------------------
This email message is for the sole use of the intended recipient(s) and may contain
confidential information.  Any unauthorized review, use, disclosure or distribution
is prohibited.  If you are not the intended recipient, please contact the sender by
reply email and destroy all copies of the original message.
-----------------------------------------------------------------------------------
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-avfiltergraph-Auto-insert-hwupload_cuda-when-needed.patch
Type: application/octet-stream
Size: 3097 bytes
Desc: 0001-avfiltergraph-Auto-insert-hwupload_cuda-when-needed.patch
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20170725/ebdc11d6/attachment.obj>