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page | FFmpeg | Instructions on how to integrate FFmpeg within Home Assistant. | 2016-09-14 00:00 | true | false | true | true | ffmpeg.png | Image Processing |
The ffmpeg
component allows other Home Assistant components to process video and audio streams. This component supports all FFmpeg versions since 3.0.0; if you have an older version, please update.
You need the `ffmpeg` binary in your system path. On Hassbian you will need to login as the `pi` user and `sudo apt install ffmpeg`. On Debian 8 or Raspbian (Jessie) you can install it from [debian-backports](https://backports.debian.org/Instructions/). If you want [hardware acceleration](https://trac.ffmpeg.org/wiki/HWAccelIntro) support on a Raspberry Pi, you will need to build from source by yourself. Windows binaries are available on the [FFmpeg](http://www.ffmpeg.org/) website.
If you are using [Hass.io](/hassio/) then just move forward to the configuration as all requirements are already fulfilled.
{% linkable_title Configuration %}
To set it up, add the following information to your configuration.yaml
file:
ffmpeg:
{% configuration %}
ffmpeg_bin:
description: The name or path to the ffmpeg
binary.
required: false
default: ffmpeg
type: string
{% endconfiguration %}
{% linkable_title Raspbian Debian Jessie Lite Installations %}
To get the binary on Raspbian Debian Jessie Lite on a RPi you need to perform the following:
$ sudo echo "deb http://ftp.debian.org/debian jessie-backports main" >> /etc/apt/sources.list
$ sudo apt-get update
$ sudo apt-get -t jessie-backports install ffmpeg
We can use now following in the configuration:
ffmpeg:
ffmpeg_bin: /usr/bin/ffmpeg
{% linkable_title Troubleshooting %}
In most cases, ffmpeg
automatically detects all needed options to read a video or audio stream or file. But it is possible in rare cases that you will need to set options to help ffmpeg
out.
First, check that your stream is playable by ffmpeg
outside of Home Assistant with (use option -an
or -vn
to disable video or audio stream):
$ ffmpeg -i INPUT -an -f null -
Now you should be able to see what is going wrong. The following list contains some common problems and solutions:
[rtsp @ ...] UDP timeout, retrying with TCP
: You need to set an RTSP transport in the configuration with:input: -rtsp_transport tcp -i INPUT
[rtsp @ ...] Could not find codec parameters for stream 0 (Video: ..., none): unspecified size
: FFmpeg needs more data or time for autodetection (the default is 5 seconds). You can set theanalyzeduration
and/orprobesize
options to experiment with giving FFmpeg more leeway. If you find the needed value, you can set it with:input: -analyzeduration xy -probesize xy -i INPUT
. More information about this can be found here.
{% linkable_title USB cameras %}
For INPUT
a valid source is needed. A USB camera is an easy way to test your video setup. To get all available USB cameras connected to the system, e.g., use the v4l2 tools on a Linux machine.
$ v4l2-ctl --list-devices
UVC Camera (046d:0825) (usb-0000:00:14.0-1):
/dev/video1
Integrated Camera (usb-0000:00:14.0-10):
/dev/video0
Record a test video with your USB device /dev/video1
:
$ ffmpeg -i /dev/video1 -codec:v libx264 -qp 0 lossless.mp4
[...]
Input #0, video4linux2,v4l2, from '/dev/video1':
Duration: N/A, start: 43556.376974, bitrate: 147456 kb/s
Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 147456 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
[...]
Output #0, mp4, to 'lossless.mp4':
Metadata:
encoder : Lavf57.41.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv422p, 640x480, q=-1--1, 30 fps, 15360 tbn, 30 tbc
Metadata:
encoder : Lavc57.48.101 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 223 fps= 40 q=-1.0 Lsize= 16709kB time=00:00:07.40 bitrate=18497.5kbits/s dup=58 drop=0 speed=1.32x