FFmpeg Docker

A complete, cross-platform solution to record, convert and stream audio and video.

Detailed description

 _______              ______________
|       |            |              |
| input |  demuxer   | encoded data |   decoder
| file  | ---------> | packets      | -----+
|_______|            |______________|      |
                                           v
                                       _________
                                      |         |
                                      | decoded |
                                      | frames  |
                                      |_________|
 ________             ______________       |
|        |           |              |      |
| output | <-------- | encoded data | <----+
| file   |   muxer   | packets      |   encoder
|________|           |______________|

Tools

  • ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
  • ffplay is a minimalistic multimedia player.
  • ffprobe is a simple analysis tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.

Generic options

ffmpeg -help
ffmpeg -encoders
# libopenh264

Docker

# mp4 -> avi
docker run --rm -it \
  -v $(pwd)/config:/config \
  linuxserver/ffmpeg \
  -i /config/input.mp4 -c:v copy -c:a copy /config/output.avi
# avi -> mp4
docker run --rm -it \
  -v $(pwd)/config:/config \
  linuxserver/ffmpeg \
  -i /config/output.avi -c:v copy -c:a copy /config/mp4output.mp4
# 宽度固定，高度按比例
docker run --rm -it \
  -v $(pwd)/config:/config \
  linuxserver/ffmpeg \
  -i /config/input.mp4 -vf scale=640:640/a -c:v libx264 -c:a copy /config/output-640.mp4
# 高度固定，宽度按比例
docker run --rm -it \
  -v $(pwd)/config:/config \
  linuxserver/ffmpeg \
  -i /config/input.mp4 -vf scale=480*a:480 -c:v libx264 -c:a copy /config/output-480.mp4
docker run --rm -it \
  -v $(pwd)/config:/config \
  linuxserver/ffmpeg \
  -i /config/input.mp4 -ss 00:00:01 -y -vframes 1 /config/new.jpg

Basic Transcode

docker run --rm -it \
  -v $(pwd):/config \
  linuxserver/ffmpeg \
  -i /config/input.mkv \
  -c:v libx264 \
  -b:v 4M \
  -vf scale=1280:720 \
  -c:a copy \
  /config/output.mkv

Hardware accelerated (VAAPI)

docker run --rm -it \
  --device=/dev/dri:/dev/dri \
  -v $(pwd):/config \
  linuxserver/ffmpeg \
  -vaapi_device /dev/dri/renderD128 \
  -i /config/input.mkv \
  -c:v h264_vaapi \
  -b:v 4M \
  -vf 'format=nv12|vaapi,hwupload,scale_vaapi=w=1280:h=720' \
  -c:a copy \
  /config/output.mkv

Nvidia Hardware accelerated

docker run --rm -it \
  --runtime=nvidia \
  -v $(pwd):/config \
  linuxserver/ffmpeg \
  -hwaccel nvdec \
  -i /config/input.mkv \
  -c:v h264_nvenc \
  -b:v 4M \
  -vf scale=1280:720 \
  -c:a copy \
  /config/output.mkv

Tips

规格 文件码率 分辨率 视频编码格式 视频编码码率 视频帧率 音频编码格式 音频编码码率 音频编码通道
4K 5966kbps 3840x2160 h264 5862kbps 25fps aac 185kbps 2ch
1080P 2327kbps 1920x1080 h264 2569kbps 25fps aac 62kbps 2ch
720P 1247kbps 1280x720 h264 983kbps 25fps aac 125kbps 2ch
高清 590kbps 896x504 h264 542kbps 25fps aac 64kbps 2ch
流畅 330kbps 640x360 h264 316kbps 25fps aac 47kbps 2ch

合并视频

vi video.txt

file 'test.mp4'
file 'test2.mp4'

ffmpeg -f concat -i video.txt -c copy concat.mp4
#ffmpeg -i "concat:0.mp4|1.mp4" -c copy concat.mp4

Screenshots

https://ffmpeg.org/pipermail/ffmpeg-user/attachments/20150223/498ab7be/attachment.png