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    <title>topic Metadata for Video Content in Alfresco Archive</title>
    <link>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301685#M254815</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;I store quite a bit of video content in my Alfresco server. In general, users upload videos in one of a few supported formats, and I deliver the videos back using the &amp;lt;video&amp;gt; tag. &lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;A while back, I added the ability to associate multiple video formats together to let the user's browser select the most appropriate version.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;But now my users are asking about caption support (SRT) for videos in order to handle translations. I'd like to start thinking about what video metadata /SHOULD/ look like in a more organized way. Ideally, others can use this too!&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;So, with that in mind, the idea is to create a video aspect, similar to the exif aspect for JPGs. Video formats are much more complex than image formats, so this could be tricky to get right. It may be that multiple aspects will be needed, depending on the video.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;So lets start right off:&lt;/SPAN&gt;&lt;BR /&gt;&lt;SPAN&gt;Running ffprobe on a OGG video stream shows:&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;PRE class="language-none line-numbers"&gt;&lt;CODE&gt;&lt;BR /&gt;$ ffprobe '/home/xkahn/public_html/Bugzilla - Beyond the Basics.ogv'&lt;BR /&gt;Input #0, ogg, from '/home/xkahn/public_html/Bugzilla - Beyond the Basics.ogv':&lt;BR /&gt;&amp;nbsp; Duration: 00:36:28.76, start: 0.000000, bitrate: 972 kb/s&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Stream #0:0: Video: theora, yuv420p, 568x576 [SAR 64:45 DAR 568:405], 25 tbr, 25 tbn, 25 tbc&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Metadata:&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; MAJOR_BRAND&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; : mp42&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; MINOR_VERSION&amp;nbsp;&amp;nbsp; : 0&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; COMPATIBLE_BRANDS: mp42isomavc1&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; CREATION_TIME&amp;nbsp;&amp;nbsp; : 2012-11-19 01:44:43&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; ENCODER&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; : Lavf53.32.100&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Stream #0:1: Audio: flac, 48000 Hz, stereo, s16&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Metadata:&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; MAJOR_BRAND&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; : mp42&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; MINOR_VERSION&amp;nbsp;&amp;nbsp; : 0&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; COMPATIBLE_BRANDS: mp42isomavc1&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; CREATION_TIME&amp;nbsp;&amp;nbsp; : 2012-11-19 01:44:43&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; ENCODER&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; : Lavf53.32.100&lt;BR /&gt;&lt;SPAN class="line-numbers-rows"&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/CODE&gt;&lt;/PRE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;And another file:&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;PRE class="language-none line-numbers"&gt;&lt;CODE&gt;&lt;BR /&gt;$ffprobe '/home/xkahn/Downloads/New year 2014.mp4'&lt;BR /&gt;Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/xkahn/Downloads/New year 2014.mp4':&lt;BR /&gt;&amp;nbsp; Metadata:&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; major_brand&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; : mp42&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; minor_version&amp;nbsp;&amp;nbsp; : 1&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; compatible_brands: mp41mp42isom&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; creation_time&amp;nbsp;&amp;nbsp; : 2014-01-03 01:33:35&lt;BR /&gt;&amp;nbsp; Duration: 00:01:39.60, start: 0.000000, bitrate: 887 kb/s&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 640x360, 754 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (default)&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Metadata:&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; creation_time&amp;nbsp;&amp;nbsp; : 2014-01-03 01:33:35&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; handler_name&amp;nbsp;&amp;nbsp;&amp;nbsp; : Core Media Video&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 130 kb/s (default)&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp; Metadata:&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; creation_time&amp;nbsp;&amp;nbsp; : 2014-01-03 01:33:35&lt;BR /&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; handler_name&amp;nbsp;&amp;nbsp;&amp;nbsp; : Core Media Audio&lt;BR /&gt;&lt;SPAN class="line-numbers-rows"&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;SPAN&gt;‍&lt;/SPAN&gt;&lt;/SPAN&gt;&lt;/CODE&gt;&lt;/PRE&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Obviously, video files are containers which contain other content: video, audio, and text.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;The first metadata is information about the container itself: container type, total duration, anything else?&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Next is one or more video streams: codec, resolution, duration, frames per second, chrominance and luminance, anything else?&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Then on to audio: codec, sampling frequency, channels, anything else?&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Finally text. What types of text streams are there? Well, there are subtitles, captions, screen reader descriptions, chapters, and cues. These text files can be embedded in the video, or external. Each text file has the following video related metadata: kind, language, anything else?&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Others have standardized on AudioMD and VideoMD: &lt;/SPAN&gt;&lt;A href="http://www.loc.gov/standards/amdvmd/" rel="nofollow noopener noreferrer"&gt;http://www.loc.gov/standards/amdvmd/&lt;/A&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Anyway, this is just a statement of the problem. I'll start trying to sketch out what this would look like next.&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Wed, 21 May 2014 19:20:12 GMT</pubDate>
    <dc:creator>xkahn</dc:creator>
    <dc:date>2014-05-21T19:20:12Z</dc:date>
    <item>
      <title>Metadata for Video Content</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301685#M254815</link>
      <description>I store quite a bit of video content in my Alfresco server. In general, users upload videos in one of a few supported formats, and I deliver the videos back using the &amp;lt;video&amp;gt; tag. A while back, I added the ability to associate multiple video formats together to let the user's browser select th</description>
      <pubDate>Wed, 21 May 2014 19:20:12 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301685#M254815</guid>
      <dc:creator>xkahn</dc:creator>
      <dc:date>2014-05-21T19:20:12Z</dc:date>
    </item>
    <item>
      <title>Re: Metadata for Video Content</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301686#M254816</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;Hi xkahn,&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;We'll be working on the intrinsic metadata shortly [1], and caption support is on the roadmap [2].&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Feel free to comment on those issues with additional information.&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Regards,&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;Ray&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;[1] &lt;/SPAN&gt;&lt;A href="https://issues.alfresco.com/jira/browse/MM-203" rel="nofollow noopener noreferrer"&gt;https://issues.alfresco.com/jira/browse/MM-203&lt;/A&gt;&lt;BR /&gt;&lt;SPAN&gt;[2] &lt;/SPAN&gt;&lt;A href="https://issues.alfresco.com/jira/browse/MM-143" rel="nofollow noopener noreferrer"&gt;https://issues.alfresco.com/jira/browse/MM-143&lt;/A&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Wed, 21 May 2014 20:27:29 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301686#M254816</guid>
      <dc:creator>rgauss</dc:creator>
      <dc:date>2014-05-21T20:27:29Z</dc:date>
    </item>
    <item>
      <title>Re: Metadata for Video Content</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301687#M254817</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;Audio should have a language metadata tag as well - English, German, Croatian, etc…&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 22 May 2014 00:02:00 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301687#M254817</guid>
      <dc:creator>danielf</dc:creator>
      <dc:date>2014-05-22T00:02:00Z</dc:date>
    </item>
    <item>
      <title>Re: Metadata for Video Content</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301688#M254818</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;Hi Ray,&lt;/SPAN&gt;&lt;BR /&gt;&lt;BR /&gt;&lt;SPAN&gt;So this looks really good! I'm excited to hear about this effort. How are you planning on handling intrinsic and external text information? For example, a video may have an internal subtitle, but 5 or 6 external caption files. &lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 23 May 2014 15:59:25 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301688#M254818</guid>
      <dc:creator>xkahn</dc:creator>
      <dc:date>2014-05-23T15:59:25Z</dc:date>
    </item>
    <item>
      <title>Re: Metadata for Video Content</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301689#M254819</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;SPAN&gt;Good catch. I missed that.&lt;/SPAN&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Fri, 23 May 2014 15:59:58 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301689#M254819</guid>
      <dc:creator>xkahn</dc:creator>
      <dc:date>2014-05-23T15:59:58Z</dc:date>
    </item>
    <item>
      <title>Re: Metadata for Video Content</title>
      <link>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301690#M254820</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi Ray,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;We have a requirement to include closed captioning for our videos and I found this old thread discussing their support as a road map item.&amp;nbsp; I haven't found any other reference to these video metadata&amp;nbsp;features in the online documentation.&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Please could you provide an update on the current status of these features?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Kind regards,&lt;/P&gt;&lt;P&gt;Lisa Pritchard&amp;nbsp;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 03 Dec 2018 10:00:58 GMT</pubDate>
      <guid>https://connect.hyland.com/t5/alfresco-archive/metadata-for-video-content/m-p/301690#M254820</guid>
      <dc:creator>lp123</dc:creator>
      <dc:date>2018-12-03T10:00:58Z</dc:date>
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