With this code: sudo ffmpeg -y -device /dev/dri/card0 -r 30 -framerate 30 -f kmsgrab -i - -f alsa -i default -vf 'hwmap=derive_device=vaapi,scale_vaapi=w=1280:h=720:format=nv12' -c:v h264_vaapi -g 60 -b:v 5500k -c:a aac -ac 2 -b:a 320k -f flv output.flv record working, no errors in ffmpeg, but no audio. With this code: sudo ffmpeg -y -device /dev/dri/card0 -r 30 -framerate 30 -f kmsgrab -i - -f pulse -i default -vf 'hwmap=derive_device=vaapi,scale_vaapi=w=1280:h=720:format=nv12' -c:v h264_vaapi -g 60 -b:v 5500k -c:a aac -ac 2 -b:a 320k -f flv output2.flv i got: [kmsgrab @ 0x55576139cc00] Using plane 48 to locate framebuffers. [kmsgrab @ 0x55576139cc00] Template framebuffer is 85: 1920x1080 format 34325258 modifier 0 flags 0. Input #0, kmsgrab, from 'pipe:': Duration: N/A, start: 1702202199.445880, bitrate: N/A Stream #0:0: Video: wrapped_avframe, drm_prime, 1920x1080, 29.92 tbr, 1000k tbn default: No such process
вс, 10 дек. 2023 г. в 04:20, Ferdi Scholten <fe...@sttc-nlp.nl>: > Cant record desktop video and audio with kmsgrab and pulseaudio/alsa on > > debian/arch system with xorg. I got video without audio or ffmpeg fail to > > record. If record only video with kmsgrab all works. How i can record > video > > and audio with kmsgrab and alsa/pulseaudio? > > _______________________________________________ > > > kmsgrab only records video, you need to specify an audio source if you > also want to record that. > > But we do not have a clue about what you are doing because you forgot > the most important part of your question! > > In order to be able to start helping you we need to see what you have > already tried so please specify your full commandline and the full > output of the terminal for that command. > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
