4dage-ffmpeg/gpu.md

video to image

ffmpeg -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -c:v h264_cuvid -i test-origin.mp4 -vf hwdownload,format=nv12 -q:v 2 -f image2 images/%06d.jpg

image to video

ffmpeg -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -c:v mjpeg_cuvid images/%06d.jpg -framerate 1 -i -c:v h264_nvenc -r 24 -b:v 2M imagetovideo.mp4

fmpeg -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -c:v mjpeg_cuvid -framerate 24 -i images/%06d.jpg -c:v h264_nvenc imagetovideo.mp4

fmpeg -vsync 0 -framerate 24 -i images/%06d.jpg -c:v libx264 imagetovideo.mp4

video to video

ffmpeg -y -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -c:v h264_cuvid -i test-origin.mp4 -c:v h264_nvenc -b:v 5M output.mp4

re hls to rtmp

ffmpeg -re -analyzeduration 8000 -probesize 200000 -i "http://39.135.138.8:6610/PLTV/88888888/224/3221225643/2/index.m3u8?fmt=ts2hls" -strict -2 -c:v copy -c:a copy -bsf:a aac_adtstoasc -f flv rtmp://192.168.0.52:1935/stream/test

re hls to rtmp

ffmpeg -re -analyzeduration 8000 -probesize 200000 -i "https://nmxlive.akamaized.net/hls/live/529965/Live_1/index.m3u8" -i /home/gemer/Downloads/shuiyin.png -strict -2 -filter_complex "[0][1]overlay[out]" -map "[out]" -vcodec libx264 -bsf:a aac_adtstoasc -f flv rtmp://192.168.0.52:1935/stream/test

http://39.135.138.8:6610/PLTV/88888888/224/3221225643/2/index.m3u8?fmt=ts2hls #EXTINF:-1,CCTV-3 综艺 高清 http://39.135.138.8:6610/PLTV/88888888/224/3221225634/2/index.m3u8?fmt=ts2hls

#EXTINF:-1,CCTV-5 体育 高清 http://39.135.138.8:6610/PLTV/88888888/224/3221225633/2/index.m3u8?fmt=ts2hls #EXTINF:-1,CCTV-5+ 体育赛事 高清 http://39.135.138.8:6610/PLTV/88888888/224/3221225706/2/index.m3u8?fmt=ts2hls

2 hls to 1

ffmpeg -re -analyzeduration 8000 -probesize 200000 -i "http://39.135.138.8:6610/PLTV/88888888/224/3221225643/2/index.m3u8?fmt=ts2hls" -i "http://39.135.138.8:6610/PLTV/88888888/224/3221225634/2/index.m3u8?fmt=ts2hls" -strict -2 -filter_complex "[0:v]pad=iw*2:ih[a];[a][1:v]overlay=w*1[out]" -map "[out]" -c:v h264_nvenc -bsf:a aac_adtstoasc -f flv rtmp://192.168.0.52:1935/stream/test

use cuda

ffmpeg -vsync 0 -hwaccel cuda -hwaccel_output_format cuda -c:v h264_cuvid -re -analyzeduration 8000 -probesize 200000 -i "https://nmxlive.akamaized.net/hls/live/529965/Live_1/index.m3u8" -strict -2 -c:v h264_nvenc -bsf:a aac_adtstoasc -f flv rtmp://192.168.0.52:1935/stream/test