ffmpeg-webm

Built:

2014.12.07

An executable container I built for launching transcoders which consume IP camera streams and transcode to webm for storage and monitoring. This images includes a default mount /data for writing the resulting video out to disk. In my use case, this path is attached via NFS mount to an archival server.

I use this with a number of Cisco 5010, 2520, 2500 and Axis 3301 IP cameras. However, it should work just fine with any number of other IP cameras given the right video_path. If you don't know this information, try searching the manufacturer's docs for "RTSP URL" or "VLC"

Usage:

The script record.sh which is used as an ENTRYPOINT to this image is essential to the function of this image as built. You can see it along with the source Dockerfile over on GitHub.

ozzyjohnson / docker-ffmpeg-webm

Ideally, start by setting some same defaults in the top of record.sh to minimize the number of required command line options. Hopefully, ffmpeg will merge a time/date segmenter at some point and I can do away with some of the ugliness here.

record.sh - default variables section

...

DATE=`date +%Y-%m-%d`
TIME=`date +%H-%M-%S`
CAMERA_USER='user'
CAMERA_PASS='pass'
CAMERA_IP='10.10.10.1'
CAMERA='mycamera'

# Destination for recordings. Directors
DEST_PATH="/data/"
DEST_DIR=$CAMERA

# Duration of segments in seconds.
SEGMENT_DURATION='900'

# Group of Pictures size.
GOP_SIZE='12'

# Output resolution.
RECORDING_RESOLUTION='720x576'

# Path to to the camera stream.
VIDEO_PATH='/stream1'

...

With Defaults:

docker run -it --rm -v /data:/mnt/data ffmpeg-webm

With Options:

docker run -it --rm -v /data:/mnt/data ffmpeg-webm \
  -u camera_user \
  -p camera_password \
  -i camera_ip \
  -n camera_name \
  -s segment_duration \
  -d destination_dir \
  -v video_path \
  -r recording_resolution \
  -g gop_size \
  -o secondary_output

Image on Docker Hub

FFMPEG Build Options:

ffmpeg

--extra-libs=-ldl --enable-gpl --enable-libass --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264

others

--enable-static / --disable-shared

Sources:

• Yasm: git://github.com/yasm/yasm.git
• x264: git://git.videolan.org/x264.git
• libvpx: https://chromium.googlesource.com/webm/libvpx.git
• ffmpeg: git://source.ffmpeg.org/ffmpeg.git
• opus: git://git.opus-codec.org/opus.git

Next:

• It looks like adding date/time functionality to ffmpeg could be a straightforward patch. I'll have to give it a try.
• record.sh is a quick, direct conversion of the upstart job I'd been using previously, is there a better way?
• For my purposes, some built in camera templates would be nice, but I'm thinking I'll do this as a new image built from this rather than messing with the base.