可以看出 对于设置preset带来的影响对于速度上没有特别大的影响,所以我们预置低八位slow得到最好的品质是最好的选择。 b帧 -bf integer (encoding,video) Set max number of B frames between non-B-frames. Must be an integer between -1 and 16. 0 means that B-frames are disabled. If a value of ...
ffmpeg -i input.mp4 -c:v h264_nvenc -preset default output.mp4 如果仍然出现错误,请检查你的NVIDIA驱动和CUDA Toolkit是否正确安装,并且确保你的FFmpeg是最新编译的版本。 通过以上步骤,你应该能够解决“unknown decoder 'h264_nvenc'”的问题。如果问题仍然存在,请检查你的系统配置和FFmpeg编译选项,或者寻求更...
我使用的是FFmpeg和Nvidia加速,但是当我执行以下命令时会出现一个错误: ffmpeg -y -vsync 0 -hwaccel_device 0 -hwaccel cuvid -c:v hevc_cuvid-i input.mkv -c:a copy -c:v hevc_nvenc -preset slow -b:v 10M -bufsize 10M -maxrate 15M -qmin 浏览4提问于2018-01-22得票数 1 回答已采纳 1...
CPU: AMD Ryzen 5 5500 Ram: 32560 MB, GPU Information: NVIDIA GeForce GTX 1070 - 31.0.15.3141 Screen: 1920x1080 --- # Starting Encode ... [16:59:14] base preset: H.265 MKV 1080p30 (Modified) [16:59:14] Remote Process started with Process ID: 23612 using port: 8037. Max Allow...
... -c:v h264_nvenc -preset slow -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" -map 0:v:0? ... Only when using default quality options like High, the script works correctly: ... -c:v h264_nvenc -preset slow -q:v 2500K -pix_fmt yuv420p -vf "scale=t...
总体而言，使用Eager方式让编码本身更加简单，然而使用Lazy的方式通常而言，即意味着更好的效率。 延迟初始...
可以看出 对于设置preset带来的影响对于速度上没有特别大的影响,所以我们预置低八位slow得到最好的品质是最好的选择。 b帧 -bf integer (encoding,video) Set max number of B frames between non-B-frames. Must be an integer between -1 and 16. 0 means that B-frames are disabled. If a value of ...
FFmpeg是一套可以用来记录、转换数字音频、视频，并能将其转化为流的开源计算机程序。在音视频开发过程中...
{ "preset", "Set the encoding preset", OFFSET(preset), AV_OPT_TYPE_INT, { .i64 = PRESET_HQ }, PRESET_DEFAULT, PRESET_LOSSLESS_HP, VE, "preset" }, { "default", "", 0, AV_OPT_TYPE_CONST, { .i64 = PRESET_DEFAULT }, 0, 0, VE, "preset" }, { "hp", "", ...
use fast preset if h264_nvenc #588 Verified 499ba29 Owner mrlt8 commented Nov 5, 2022 Thanks @hevel86! Looks like nvenc doesn't support the ultrafast preset, so we'll have to use one of the nvidia presets. Could you try the dev branch image: mrlt8/wyze-bridge:dev-hw to see ...