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✅ Fixes spelling & grammar issues in the FFmpeg component documentation (#3488)

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Franck Nijhof 2017-10-02 07:58:05 +02:00 committed by Fabian Affolter
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source/_components/ffmpeg.markdown
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@ -1,7 +1,7 @@
---
layout: page
title: "FFmpeg"
description: "Instructions for how to integrate FFmpeg within Home Assistant."
description: "Instructions on how to integrate FFmpeg within Home Assistant."
date: 2016-09-14 00:00
sidebar: true
comments: false
@ -11,7 +11,7 @@ logo: ffmpeg.png
ha_category: Hub
---
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 a older version, please update.
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.
<p class='note'>
You need the `ffmpeg` binary in your system path. 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.
@ -52,7 +52,7 @@ ffmpeg:
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):
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 -
@ -61,19 +61,19 @@ $ 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 the `analyzeduration` and/or `probesize` 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](https://www.ffmpeg.org/ffmpeg-formats.html#Description).
- `[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 the `analyzeduration` and/or `probesize` 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](https://www.ffmpeg.org/ffmpeg-formats.html#Description).
#### {% linkable_title USB cameras %}
For `INPUT` a valid source is needed. USB camera are an easy way to test your video setup. To get all available USB cameras connected to the system, eg. use the v4l2 tools on a Linux machine.
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.
```bash
$ v4l2-ctl --list-devices
UVC Camera (046d:0825) (usb-0000:00:14.0-1):
/dev/video1
/dev/video1
Integrated Camera (usb-0000:00:14.0-10):
/dev/video0
/dev/video0
```
Record a test video with your USB device `/dev/video1`: