README

此捆绑包围绕命令行工具 mediainfo 提供包装。此工具允许您获取各种多媒体格式的元数据。

当然，为了使此捆绑包工作，您必须在您的系统上安装 mediainfo。

安装

在 composer.json 中要求：

{
  "require": {
    "ac/media-info-bundle": "~1.2.0"
  }
}

添加到您的 AppKernel.php；

//app/AppKernel.php

public function registerBundles()
{
    return array(
    //...
        new AC\MediaInfoBundle\ACMediaInfoBundle(),
    //...
    );
}

配置

配置非常简单，您只需提供 mediainfo 可执行文件的路径即可。

ac_media_info:
    path: /usr/bin/mediainfo

使用方法

使用方法同样简单

$mediainfo = $container->get('ac.mediainfo');

//will return a structured php array with the mediainfo results
$array = $mediainfo->scan('/path/to/file.mp4');

需要注意的是，$array['file'] 下的键包含数组作为值，因为 mediainfo 以多种表示形式报告许多值。下面是一个示例。

mediainfo 返回的所有键都转换为小写。例如，如果您使用 mediainfo:scan 命令以 yaml 格式导出数据，您将看到

app/console mediainfo:scan /path/to/example.webm

version: 0.7.63
file:
    general:
        count:
            - '284'
        count_of_stream_of_this_kind:
            - '1'
        kind_of_stream:
            - General
        unique_id:
            - '94077224337973666327274415816295077565'
            - '94077224337973666327274415816295077565 (0x46C69D45A185A9294D3D0A2F750056BD)'
        count_of_video_streams:
            - '1'
        count_of_audio_streams:
            - '1'
        video_format_list:
            - VP8
        video_format_withhint_list:
            - VP8
        codecs_video:
            - V_VP8
        video_language_list:
            - English
        audio_format_list:
            - Vorbis
        audio_format_withhint_list:
            - Vorbis
        audio_codecs:
            - Vorbis
        audio_language_list:
            - English
        complete_name:
            - /Users/evan/Desktop/trailer.webm
        folder_name:
            - /Users/evan/Desktop
        file_name:
            - trailer
        file_extension:
            - webm
        format:
            - WebM
        format_url:
            - 'http://www.webmproject.org/'
        format_extensions_usually_used:
            - webm
        commercial_name:
            - WebM
        format_version:
            - 'Version 1'
        internet_media_type:
            - video/webm
        codec:
            - WebM
        codec_url:
            - 'http://www.webmproject.org/'
        codec_extensions_usually_used:
            - webm
        file_size:
            - '2165175'
            - '2.06 MiB'
            - '2 MiB'
            - '2.1 MiB'
            - '2.065 MiB'
        duration:
            - '32480'
            - '32s 480ms'
            - '00:00:32.480'
        overall_bit_rate_mode:
            - VBR
            - Variable
        overall_bit_rate:
            - '533294'
            - '533 Kbps'
        stream_size:
            - '121714'
            - '119 KiB (6%)'
            - '119 KiB'
            - '118.9 KiB'
        proportion_of_this_stream:
            - '0.05621'
        encoded_date:
            - 'UTC 2010-05-20 08:21:12'
        file_last_modification_date:
            - 'UTC 2013-07-26 20:20:20'
        file_last_modification_date__local_:
            - '2013-07-26 16:20:20'
        writing_application:
            - 'Sorenson Squeeze'
        writing_library:
            - 'http://sourceforge.net/projects/yamka'
    video:
        '1':
            count:
                - '263'
            count_of_stream_of_this_kind:
                - '1'
            kind_of_stream:
                - Video
            streamorder:
                - '0'
            id:
                - '1'
            unique_id:
                - '38308775201223106'
            format:
                - VP8
            format_url:
                - 'http://www.webmproject.org/'
            commercial_name:
                - VP8
            codec_id:
                - V_VP8
            codec_id_url:
                - 'http://www.webmproject.org/'
            codec:
                - V_VP8
            duration:
                - '32480'
                - '32s 480ms'
                - '00:00:32.480'
            bit_rate:
                - '439316'
                - '439 Kbps'
            width:
                - '640'
                - '640 pixels'
            height:
                - '360'
                - '360 pixels'
            pixel_aspect_ratio:
                - '1.000'
            display_aspect_ratio:
                - '1.778'
                - '16:9'
            frame_rate_mode:
                - CFR
                - Constant
            frame_rate:
                - '25.000'
                - '25.000 fps'
            frame_count:
                - '812'
            compression_mode:
                - Lossy
            bits__pixel_frame_:
                - '0.076'
            delay:
                - '0'
                - '00:00:00.000'
            delay__origin:
                - Container
            stream_size:
                - '1783621'
                - '1.70 MiB (82%)'
                - '2 MiB'
                - '1.7 MiB'
                - '1.70 MiB'
                - '1.701 MiB'
            proportion_of_this_stream:
                - '0.82378'
            language:
                - en
                - English
                - eng
            default:
                - Yes
            forced:
                - No
    audio:
        '1':
            count:
                - '220'
            count_of_stream_of_this_kind:
                - '1'
            kind_of_stream:
                - Audio
            streamorder:
                - '1'
            id:
                - '2'
            unique_id:
                - '110618262945856186'
            format:
                - Vorbis
            format_url:
                - 'http://www.vorbis.com/'
            commercial_name:
                - Vorbis
            format_settings__floor:
                - '1'
            internet_media_type:
                - audio/vorbis
            codec_id:
                - A_VORBIS
            codec_id_url:
                - 'http://www.vorbis.com'
            codec:
                - Vorbis
            codec_family:
                - Vorbis
            codec_url:
                - 'http://www.vorbis.com'
            codec_settings__floor:
                - '1'
            duration:
                - '32480'
                - '32s 480ms'
                - '00:00:32.480'
            bit_rate_mode:
                - VBR
                - Variable
            bit_rate:
                - '64000'
                - '64.0 Kbps'
            channel_s_:
                - '1'
                - '1 channel'
            sampling_rate:
                - '44100'
                - '44.1 KHz'
            samples_count:
                - '1432368'
            compression_mode:
                - Lossy
            delay:
                - '0'
                - '00:00:00.000'
            delay__origin:
                - Container
            delay_relative_to_video:
                - '0'
            video0_delay:
                - '0'
            stream_size:
                - '259840'
                - '254 KiB (12%)'
                - '254 KiB'
                - '253.8 KiB'
            proportion_of_this_stream:
                - '0.12001'
            writing_library:
                - 'Xiph.Org libVorbis I 20100325 (Everywhere)'
                - 'libVorbis (Everywhere) (20100325 (Everywhere))'
            writing_library_name:
                - libVorbis
            writing_library_version:
                - (Everywhere)
            writing_library_date:
                - '20100325 (Everywhere)'
            language:
                - en
                - English
                - eng
            default:
                - Yes
            forced:
                - No