wapmorgan/media-file
最新稳定版本：0.1.4
Composer 安装命令：
composer require wapmorgan/media-file
包简介
A unified reader of metadata from audio & video files
README 文档
README
Allows you easily get meta information about any media file with unified interface. The library has no requirements of external libs or system unitilies.
Supported formats
| Audio | Video |
|---|---|
| aac, amr, flac, mp3, ogg, wav, wma | avi, mkv, mp4, wmv |
| - length | - length |
| - bitRate | - width |
| - sampleRate | - height |
| - channels | - frameRate |
Table of contents:
- Usage
- API
- Why not using getID3?
- Technical details
Usage
use wapmorgan\MediaFile\MediaFile; try { $media = MediaFile::open('123.mp3'); // for audio if ($media->isAudio()) { $audio = $media->getAudio(); echo 'Duration: '.$audio->getLength().PHP_EOL; echo 'Bit rate: '.$audio->getBitRate().PHP_EOL; echo 'Sample rate: '.$audio->getSampleRate().PHP_EOL; echo 'Channels: '.$audio->getChannels().PHP_EOL; } // for video else { $video = $media->getVideo(); // calls to VideoAdapter interface echo 'Duration: '.$video->getLength().PHP_EOL; echo 'Dimensions: '.$video->getWidth().'x'.$video->getHeight().PHP_EOL; echo 'Framerate: '.$video->getFramerate().PHP_EOL; } } catch (wapmorgan\MediaFile\Exceptions\FileAccessException $e) { // FileAccessException throws when file is not a detected media } catch (wapmorgan\MediaFile\Exceptions\ParsingException $e) { echo 'File is propably corrupted: '.$e->getMessage().PHP_EOL; }
API
MediaFile
wapmorgan\wapmorgan\MediaFile
| Method | Description | Notes |
|---|---|---|
static open($filename): MediaFile |
Detects file type and format and calls constructor with these parameters. | Throws an \Exception if file is not a media or is not accessible. |
isAudio(): boolean |
Returns true if media is just audio. | |
isVideo(): boolean |
Returns true if media is a video with audio. | |
isContainer(): boolean |
Returns true if media is also a container (can store multiple audios and videos). | |
getFormat(): string |
Returns media file format. | |
getAudio(): AudioAdapter |
Returns an AudioAdapter interface for audio. |
|
getVideo(): VideoAdapter |
Returns an VideoAdapter interface for video. |
AudioAdapter
wapmorgan\MediaFile\AudioAdapter
| Method | Description |
|---|---|
getLength(): float |
Returns audio length in seconds and microseconds as float. |
getBitRate(): int |
Returns audio bit rate as int. |
getSampleRate(): int |
Returns audio sampling rate as int. |
getChannels(): int |
Returns number of channels used in audio as int. |
isVariableBitRate(): boolean |
Returns whether format support VBR and file has VBR as boolean. |
isLossless(): boolean |
Returns whether format has compression lossless as boolean. |
VideoAdapter
wapmorgan\MediaFile\VideoAdapter
| Method | Description |
|---|---|
getLength(): int |
Returns video length in seconds and microseconds as float. |
getWidth(): int |
Returns width of video as int. |
getHeight(): int |
Returns height of video as int. |
getFramerate(): int |
Returns video frame rate of video as int. |
ContainerAdapter
wapmorgan\MediaFile\ContainerAdapter
| Method | Description |
|---|---|
countStreams(): int |
Returns number of streams in container as int. |
countVideoStreams(): int |
Returns number of video streams as int. |
countAudioStreams(): int |
Returns number of audio streams as int. |
getStreams(): array |
Returns streams information as array. |
Why not using getID3?
getID3 library is very popular and has a lot of features, but it's old and too slow.
Following table shows comparation of analyzing speed of fixtures, distributed with first release of MediaFile:
| File | getID3 | MediaFile | Speed gain |
|---|---|---|---|
| video.avi | 0.215 | 0.126 | 1.71x |
| video.mp4 | 3.055 | 0.429 | 7.12x |
| video.wmv | 0.354 | 0.372 | 0.95x |
| audio.aac | 0.560 | 0.262 | 2.13x |
| audio.amr | 8.241 | 12.248 | 0.67x |
| audio.flac | 1.880 | 0.071 | 26.41x |
| audio.m4a | 13.372 | 0.169 | 79.14x |
| audio.mp3 | 10.931 | 0.077 | 141.54x |
| audio.ogg | 0.170 | 0.096 | 1.78x |
| audio.wav | 0.114 | 0.070 | 1.64x |
| audio.wma | 0.195 | 0.158 | 1.23x |
Technical information
统计信息
- 总下载量： 227k
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其他信息
- 授权协议： MIT
- 更新时间： 未知