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MediaPortal 1
MediaPortal 1 Plugins
Auto3D plugin for MediaPortal 1.2 - 1.12 (GUI & TV/Beamer)
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<blockquote data-quote="u095538" data-source="post: 1077297" data-attributes="member: 79639"><p>Cool. Thanks for your thoughts Marcus. That is the realisation I've come to and have already started my first conversion. If you're interested, <a href="http://www.pantarheon.org/AviSynth3DToolbox/" target="_blank">here</a> is a fantastic set of AVISynth funcitons that makes the job easy-peasy.</p><p></p><p>Interestingly, I've realised there's more waste compared to the 2D method of reencoding and muxing to MKV.</p><p></p><p>One rarely sees a film shot in exact 16:9 widescreen, normally they're wider and so letter-boxing is common in BluRay releases. When encoding one crops this "letterbox" out as it's wasteful to store a length of persistent black pixels as H.264 data. Once those pixels are gone, the aspect ratio of the video is destroyed (if played back at 1:1), so the aspect ratio is mentioned within the MKV's meta-data. The player is now responsible for reading the aspect ratio from the MKV file and generating the appropriate black bars upon playback.</p><p></p><p>As far as I can tell, this nicety is lost when we backup 3D content using the two current methods, SBS & TAB. In every frame of a SBS and a TAB film that's not 16:9 there are black pixels being stored. Unfortunate.</p><p></p><p>If we are going to be as clever with this we would probably have to update the MKV spec to allow a 3D flag in the meta-data so that players know how to correctly apply the letterboxing. The flag would need to have three states: sbs/tab/none</p><p></p><p>Anyway I can't complain. Nothing's perfect, is it? And 3D at home is awesome <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Edit: This has already been thought of and resolved. I really must learn to Google things before I open my trap <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite26" alt=":unsure:" title="Unsure :unsure:" loading="lazy" data-shortname=":unsure:" />. The flag has fifteen different states and is called <a href="http://matroska.org/technical/specs/index.html#StereoMode" target="_blank">'StereoMode'</a></p></blockquote><p></p>
[QUOTE="u095538, post: 1077297, member: 79639"] Cool. Thanks for your thoughts Marcus. That is the realisation I've come to and have already started my first conversion. If you're interested, [URL='http://www.pantarheon.org/AviSynth3DToolbox/']here[/URL] is a fantastic set of AVISynth funcitons that makes the job easy-peasy. Interestingly, I've realised there's more waste compared to the 2D method of reencoding and muxing to MKV. One rarely sees a film shot in exact 16:9 widescreen, normally they're wider and so letter-boxing is common in BluRay releases. When encoding one crops this "letterbox" out as it's wasteful to store a length of persistent black pixels as H.264 data. Once those pixels are gone, the aspect ratio of the video is destroyed (if played back at 1:1), so the aspect ratio is mentioned within the MKV's meta-data. The player is now responsible for reading the aspect ratio from the MKV file and generating the appropriate black bars upon playback. As far as I can tell, this nicety is lost when we backup 3D content using the two current methods, SBS & TAB. In every frame of a SBS and a TAB film that's not 16:9 there are black pixels being stored. Unfortunate. If we are going to be as clever with this we would probably have to update the MKV spec to allow a 3D flag in the meta-data so that players know how to correctly apply the letterboxing. The flag would need to have three states: sbs/tab/none Anyway I can't complain. Nothing's perfect, is it? And 3D at home is awesome :) Edit: This has already been thought of and resolved. I really must learn to Google things before I open my trap :unsure:. The flag has fifteen different states and is called [URL='http://matroska.org/technical/specs/index.html#StereoMode']'StereoMode'[/URL] [/QUOTE]
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MediaPortal 1
MediaPortal 1 Plugins
Auto3D plugin for MediaPortal 1.2 - 1.12 (GUI & TV/Beamer)
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