mirror of
https://github.com/tldr-pages/tldr.git
synced 2025-07-01 20:15:23 +02:00
ffmpeg: add Chinese translation (#16173)
Co-authored-by: Managor <42655600+Managor@users.noreply.github.com> Co-authored-by: Machiavelli <145562237+MachiavelliII@users.noreply.github.com>
This commit is contained in:
parent
731e1d6f53
commit
53b8ef4712
1 changed files with 36 additions and 0 deletions
36
pages.zh/common/ffmpeg.md
Normal file
36
pages.zh/common/ffmpeg.md
Normal file
|
@ -0,0 +1,36 @@
|
||||||
|
# ffmpeg
|
||||||
|
|
||||||
|
> 视频转换工具。
|
||||||
|
> 更多信息:<https://ffmpeg.org>.
|
||||||
|
|
||||||
|
- 从视频中提取音频并保存为 MP3 格式:
|
||||||
|
|
||||||
|
`ffmpeg -i {{路径/到/video.mp4}} -vn {{路径/到/sound.mp3}}`
|
||||||
|
|
||||||
|
- 将 FLAC 文件转码为红皮书 CD 格式(44100kHz,16位):
|
||||||
|
|
||||||
|
`ffmpeg -i {{路径/到/input_audio.flac}} -ar 44100 -sample_fmt s16 {{路径/到/output_audio.wav}}`
|
||||||
|
|
||||||
|
- 将视频保存为 GIF,设置高度为 1000 像素,帧率为 15:
|
||||||
|
|
||||||
|
`ffmpeg -i {{路径/到/video.mp4}} {{[-vf|-filter:v]}} 'scale=-1:{{1000}}' -r {{15}} {{路径/到/output.gif}}`
|
||||||
|
|
||||||
|
- 将编号图像(如 `frame_1.jpg`、`frame_2.jpg` 等)合成为视频或 GIF:
|
||||||
|
|
||||||
|
`ffmpeg -i {{路径/到/frame_%d.jpg}} -f image2 {{video.mpg | video.gif}}`
|
||||||
|
|
||||||
|
- 从给定的开始时间 mm:ss 到结束时间 mm2:ss2 裁剪视频(省略 `-to` 参数表示裁剪至末尾):
|
||||||
|
|
||||||
|
`ffmpeg -i {{路径/到/input_video.mp4}} -ss {{mm:ss}} -to {{mm2:ss2}} {{[-c|-codec]}} copy {{路径/到/output_video.mp4}}`
|
||||||
|
|
||||||
|
- 将 AVI 视频转换为 MP4,AAC 音频码率为 128kbit,h264 视频使用 CRF 编码:
|
||||||
|
|
||||||
|
`ffmpeg -i {{路径/到/input_video}}.avi {{[-c|-codec]}}:a aac -b:a 128k {{[-c|-codec]}}:v libx264 -crf 23 {{路径/到/output_video}}.mp4`
|
||||||
|
|
||||||
|
- 将 MKV 视频重新转换为 MP4,无需重新编码音频或视频流:
|
||||||
|
|
||||||
|
`ffmpeg -i {{路径/到/input_video}}.mkv {{[-c|-codec]}} copy {{路径/到/output_video}}.mp4`
|
||||||
|
|
||||||
|
- 将 MP4 视频转换为 VP9 编解码器。为获得最佳质量,请使用 CRF 值(建议范围为 15-35),并且 -b:v 必须为 0:
|
||||||
|
|
||||||
|
`ffmpeg -i {{路径/到/input_video}}.mp4 {{[-c|-codec]}}:v libvpx-vp9 -crf {{30}} -b:v 0 {{[-c|-codec]}}:a libopus -vbr on -threads {{线程数量}} {{路径/到/output_video}}.webm`
|
Loading…
Add table
Reference in a new issue