FFmpeg Docker

Contents

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#

References#