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0 votes
1 answer
1k views

Windows ffmpeg hardware accelerated video encoding FAILS using codec hevc_amf but works with codec h264_amf

I'm running ffmpeg on Windows 10 on a machine with an AMD Radion HD 7700. Hardware accelerated h.264 works fine while HEVC encoding fails. The version of ffmpeg is: ffmpeg version 5.1.2-...
mbmast's user avatar
  • 321
0 votes
1 answer
5k views

FFmpeg: h264_qsv slower than libx264 (real-time buffer too full)

I use configuration: Windows 10 IoT, Intel Celeron N3350E (with Intel HD Graphics). Runing this line: ffmpeg -f dshow -i video="USB Video":audio="USB Digital Audio" -c:v libx264 -...
ffvideoner's user avatar
1 vote
1 answer
6k views

FFmpeg h264_qsv: Error initializing an internal MFX session: unsupported (-3)

Im using ffmpeg build for Windows from gyan.dev: release ffmpeg-5.0-full-build with hardware-support. I need to capture a video from a USB video device, compress it and write it to a file. I am using ...
ffvideoner's user avatar
3 votes
2 answers
9k views

ffmpeg not working using h264_vaapi

I'm trying to transcode a video using ffmpeg with hardware acceleration using the following command: sudo ffmpeg -hwaccel vaapi -hwaccel_output_format vaapi \ -vaapi_device /dev/dri/renderD128 -i ...
OBit's user avatar
  • 61