ffmpeg fast
The preset determines how fast the encoding process will be – at the expense of compression efficiency. Put differently, if you choose ultrafast, ..., If you prefer command-line you can use ffmpeg (or handbrake-cli ). MP4. Assuming you're using a recent version of ffmpeg : ffmpeg -i input -c:v ...
| 相關軟體 FFmpeg 資訊 | |
|---|---|
 ffmpeg fast 相關參考資料
EncodeH.264 – FFmpeg
The available presets in descending order of speed are: ultrafast; superfast; veryfast; faster; fast; medium – default preset; slow; slower ... https://trac.ffmpeg.org EncodeH.265 – FFmpeg
The preset determines how fast the encoding process will be – at the expense of compression efficiency. Put differently, if you choose ultrafast, ... https://trac.ffmpeg.org ffmpeg - Fastest way to convert videos (batch or single)? - Ask Ubuntu
If you prefer command-line you can use ffmpeg (or handbrake-cli ). MP4. Assuming you're using a recent version of ffmpeg : ffmpeg -i input -c:v ... https://askubuntu.com ffmpeg command for faster encoding at a decent bitrate with ...
Try ffmpeg -i input.mp4 -vcodec libx264 -crf 27 -preset veryfast -c:a copy -s 960x540 output.mp4. In CRF mode, x264 encodes video to maintain ... https://stackoverflow.com H.264 encoding - veryfast preset produces smaller file ... - FFmpeg trac
Summary of the bug: According to https://trac.ffmpeg.org/wiki/Encode/H.264, for constant quality encoding, faster preset should be slower and produce smaller ... https://trac.ffmpeg.org How to implement fast encoding with ffmpeg? - Stack Overflow
How many threads are being used, highly depends on used codec, settings and hardware. Besides that, RAM is used rarely that amount by ... https://stackoverflow.com How to speed up slow down a video – FFmpeg
You can change the speed of a video stream using the setpts video filter. Note that in the following examples, the audio stream is not changed ... https://trac.ffmpeg.org Seeking – FFmpeg
The input will be parsed using keyframes, which is very fast. As of FFmpeg 2.1, when transcoding with ffmpeg (i.e. not just stream copying), -ss ... https://trac.ffmpeg.org StreamingGuide – FFmpeg
i.e. if you wanted to stream a video file, then you would want to use this, otherwise it might stream it too fast (it attempts to stream at line speed ... https://trac.ffmpeg.org [FFmpeg-user] Fast encoding
On Wed, Aug 12, 2015 at 11:03 PM, Robin Lery <robinlery at gmail.com> wrote: > I know about presets but faster presets lose the video quality. https://ffmpeg.org |