How to use scale_krga in C++ #81

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opened 2025-12-23 10:32:31 +01:00 by backuprepo · 1 comment

backuprepo commented

2025-12-23 10:32:31 +01:00

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Originally created by @jinjie412 on GitHub (Aug 1, 2024).

./ffmpeg -init_hw_device rkmpp=hw -filter_hw_device hw -f lavfi -i testsrc2=s=1920x1080,format=nv12 \ -vf hwupload,scale_rkrga=w=1280:h=720:format=nv12 -c:v h264_rkmpp -b:v 4M -maxrate 4M -vframes 1000 -y /tmp/tmp.mp4

How to implement this feature using C++，

Originally created by @jinjie412 on GitHub (Aug 1, 2024). `./ffmpeg -init_hw_device rkmpp=hw -filter_hw_device hw -f lavfi -i testsrc2=s=1920x1080,format=nv12 \ -vf hwupload,scale_rkrga=w=1280:h=720:format=nv12 -c:v h264_rkmpp -b:v 4M -maxrate 4M -vframes 1000 -y /tmp/tmp.mp4` How to implement this feature using C++，

backuprepo

2025-12-23 10:32:31 +01:00

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backuprepo commented

2025-12-23 10:32:32 +01:00

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@nyanmisaka commented on GitHub (Aug 1, 2024):

This is not an easy task so I can't provide an example. You can refer to this and write your own.

https://github.com/search?q=avfilter_get_by_name%28%22scale_vaapi%22%29+avfilter_get_by_name%28%22scale_cuda%22%29&type=code

@nyanmisaka commented on GitHub (Aug 1, 2024): This is not an easy task so I can't provide an example. You can refer to this and write your own. https://github.com/search?q=avfilter_get_by_name%28%22scale_vaapi%22%29+avfilter_get_by_name%28%22scale_cuda%22%29&type=code