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add missing chapter about audio clipping in readme (#329)

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Jens Hausdorf 2017-04-12 17:58:04 +02:00 • committed by Romain Biard
commit 2ddf9ae377
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README.md
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@ -1,4 +1,4 @@
#PHP FFmpeg # PHP FFmpeg
[![Build Status](https://secure.travis-ci.org/PHP-FFMpeg/PHP-FFMpeg.png?branch=master)](http://travis-ci.org/PHP-FFMpeg/PHP-FFMpeg) [![Build Status](https://secure.travis-ci.org/PHP-FFMpeg/PHP-FFMpeg.png?branch=master)](http://travis-ci.org/PHP-FFMpeg/PHP-FFMpeg)
@ -98,7 +98,7 @@ $ffmpeg->open('video.mpeg');
Two types of media can be resolved: `FFMpeg\Media\Audio` and `FFMpeg\Media\Video`. Two types of media can be resolved: `FFMpeg\Media\Audio` and `FFMpeg\Media\Video`.
A third type, `FFMpeg\Media\Frame`, is available through videos. A third type, `FFMpeg\Media\Frame`, is available through videos.
#### Video ### Video
`FFMpeg\Media\Video` can be transcoded, ie: change codec, isolate audio or `FFMpeg\Media\Video` can be transcoded, ie: change codec, isolate audio or
video. Frames can be extracted. video. Frames can be extracted.
@ -317,9 +317,9 @@ The clip filter takes two parameters:
- `$start`, an instance of `FFMpeg\Coordinate\TimeCode`, specifies the start point of the clip - `$start`, an instance of `FFMpeg\Coordinate\TimeCode`, specifies the start point of the clip
- `$duration`, optional, an instance of `FFMpeg\Coordinate\TimeCode`, specifies the duration of the clip - `$duration`, optional, an instance of `FFMpeg\Coordinate\TimeCode`, specifies the duration of the clip
#### Audio ### Audio
`FFMpeg\Media\Audio` can be transcoded, ie: change codec, isolate audio or `FFMpeg\Media\Audio` can be transcoded too, ie: change codec, isolate audio or
video. Frames can be extracted. video. Frames can be extracted.
##### Transcoding ##### Transcoding
@ -356,6 +356,14 @@ method. It only accepts audio filters.
You can build your own filters and some are bundled in PHP-FFMpeg - they are You can build your own filters and some are bundled in PHP-FFMpeg - they are
accessible through the `FFMpeg\Media\Audio::filters` method. accessible through the `FFMpeg\Media\Audio::filters` method.
##### Clipping
Cuts the audio at a desired point.
```php
$audio->filters()->clip(FFMpeg\Coordinate\TimeCode::fromSeconds(30), FFMpeg\Coordinate\TimeCode::fromSeconds(15));
```
###### Metadata ###### Metadata
Add metadata to audio files. Just pass an array of key=value pairs of all Add metadata to audio files. Just pass an array of key=value pairs of all