Anamorphic DVD - aspect ratio - Printable Version +- Kodi Community Forum (https://forum.kodi.tv) +-- Forum: Support (https://forum.kodi.tv/forumdisplay.php?fid=33) +--- Forum: Supplementary Tools for Kodi (https://forum.kodi.tv/forumdisplay.php?fid=116) +---- Forum: TinyMediaManager (https://forum.kodi.tv/forumdisplay.php?fid=204) +---- Thread: Anamorphic DVD - aspect ratio (/showthread.php?tid=349617) Pages:
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Anamorphic DVD - aspect ratio - mhendu - 2019-11-28 The new TinyMediaManager (3.0.5) reports the incorrect aspect ratio for anamorphic DVD-rips. This used to be an issue with TinyMediaManager but was corrected in a later version of 2.x. The bug seems to have reverted with the new version. Sample MediaInfo below: Video ID : 1 Format : HEVC Format/Info : High Efficiency Video Coding Format profile : Main 10@L3@Main Codec ID : V_MPEGH/ISO/HEVC Duration : 1 h 17 min Bit rate : 758 kb/s Width : 720 pixels Height : 480 pixels Display aspect ratio : 16:9 In TinyMediaManager 3.0.5 this shows as a 4x3 aspect ratio (and is stored as such in the NFO), but the actual aspect ratio is 16x9. RE: Anamorphic DVD - aspect ratio - mlaggner - 2019-11-28 do you mean https://forum.kodi.tv/showthread.php?tid=324561&highlight=aspect ? I suppose this has never been implemented since tmm does calculate the aspect ratio on its own and we're not evaluating the values from mediainfo RE: Anamorphic DVD - aspect ratio - mhendu - 2019-11-28 (2019-11-28, 16:10)mlaggner Wrote: do you mean https://forum.kodi.tv/showthread.php?tid=324561&highlight=aspect ? Yes, I'm the original poster on that thread also. I could've sworn that handling the aspect ratio flag was implemented in a 2.x version, though. The flag should be evaluated to determine the aspect ratio (and/or display width / height) since an appropriate player will read that value and display the video according to the flags, not just based on the pixel width / height. Not as much an issue for HD content but a large percentage of SD content will have this issue since the DVD specs allowed for anamorphic video to take full advantage of the limited resolution when the video was widescreen. RE: Anamorphic DVD - aspect ratio - myron - 2019-11-29 Can you please open this file with MediaInfo GUI, and export the result to XML? RE: Anamorphic DVD - aspect ratio - mhendu - 2019-11-29 (2019-11-29, 09:35)myron Wrote: Can you please open this file with MediaInfo GUI, and export the result to XML? Sure, here you go: https://paste.kodi.tv/rebobotaca RE: Anamorphic DVD - aspect ratio - mhendu - 2020-01-04 Just checking in on this as it's been a little while. I have my projector set to read the aspect ratio flag and adjust the zoom / lens shift to display titles as full frame as possible based on their aspect ratios (2.4:1 screen) so it's an issue for me on playback in Kodi if the aspect ratio is set incorrectly. Thanks again. RE: Anamorphic DVD - aspect ratio - mlaggner - 2020-01-04 well, imho Kodi reads that info on its own when the file is accessed - using the values from the NFO file is just being used as long as Kodi did not access the media file. If I am not wrong, the data from tmm does not have _any_ influence how Kodi does its playback RE: Anamorphic DVD - aspect ratio - mhendu - 2020-01-04 (2020-01-04, 11:26)mlaggner Wrote: well, imho Kodi reads that info on its own when the file is accessed - using the values from the NFO file is just being used as long as Kodi did not access the media file. I just tested in Kodi 17.6 (DSPlayer) and the setting persists if my nfo has the correct aspect ratio listed, after I play the video file. I believe you're correct that the nfo does not impact Kodi's playback, but for my setup I wrote a script to read the aspect radio in the database on playback and to adjust the projector settings for the optimal position based on the aspect ratio. For most users it's probably not an issue if the aspect ratio isn't listed correctly, but for me it does impact the experience. Both Ember Media Manager and MediaElch do handle the aspect ratio correctly, for what it's worth. RE: Anamorphic DVD - aspect ratio - mlaggner - 2020-01-04 myron has already implemented a fix for 3.1 - we will prefer the aspect ratio from mediainfo over the calculated one: https://gitlab.com/tinyMediaManager/tinyMediaManager/commit/3b3b609393c3d1a101177d4f067745cbe204d041 RE: Anamorphic DVD - aspect ratio - mhendu - 2020-01-04 (2020-01-04, 17:49)mlaggner Wrote: myron has already implemented a fix for 3.1 - we will prefer the aspect ratio from mediainfo over the calculated one: https://gitlab.com/tinyMediaManager/tinyMediaManager/commit/3b3b609393c3d1a101177d4f067745cbe204d041 Perfect, thanks! RE: Anamorphic DVD - aspect ratio - mhendu - 2020-01-05 (2020-01-04, 17:49)mlaggner Wrote: myron has already implemented a fix for 3.1 - we will prefer the aspect ratio from mediainfo over the calculated one: https://gitlab.com/tinyMediaManager/tinyMediaManager/commit/3b3b609393c3d1a101177d4f067745cbe204d041 Just installed 3.1 - while this is now correctly picking up the aspect ratio flag from Mediainfo, it's also ignoring the crop values. In some cases there are movies with letterboxing or pillarboxing encoded into the file. Setting crop flags results in the correct detection of the visible picture dimensions within the video file within TinyMediaManager 3.1. However, that information is now not used to determine the aspect ratio. See, for instance, this video, where it's encoded with 34 pixels and 36 pixels of black bars on top and bottom, and a 2 pixel bar on the right. Video ID : 1 Format : AVC Format/Info : Advanced Video Codec Format profile : [email protected] Format settings : CABAC / 4 Ref Frames Format settings, CABAC : Yes Format settings, Reference frames : 4 frames Codec ID : V_MPEG4/ISO/AVC Duration : 1 h 41 min Bit rate : 5 219 kb/s Nominal bit rate : 5 500 kb/s Width : 1 918 pixels Original width : 1 920 pixels Height : 1 010 pixels Original height : 1 080 pixels Display aspect ratio : 16:9 Display aspect ratio of the uncropped video is 16x9. Factoring in the crop values the actual aspect ratio is 1.9:1, or approximately 1.85:1. TinyMediaManager 3.1 shows this video as having a 1.78:1 aspect ratio. You can use this formula to determine the correct aspect ratio, factoring in both the display aspect ratio and the pixel dimensions: Display aspect ratio * (Width / Height) / (Original width / Original height) That should account for scenarios where the pixel dimensions don't accurately capture the display aspect ratio, as well as for the crop values. So, for instance, a video with these specs: Width : 696 pixels Original width : 720 pixels Height : 480 pixels Original height : 480 pixels Display aspect ratio : 16:9 ...would be correctly determined to have an aspect ratio of 1.72:1. RE: Anamorphic DVD - aspect ratio - mlaggner - 2020-01-07 well this would break the whole algorithm we use (which is built on the algorithm Kodi uses). I am wondering why that works at Kodi... have to discuss that with myron because he is the "mediainfo" guy RE: Anamorphic DVD - aspect ratio - myron - 2020-01-07 Well, whilst we get the detailed AR from mediainfo, we need to find a "common AR" for displaying (at least for an icon) 1.87, 1.88 are not "common", 1.85 is. MediaInfo has all the details it needs, and display this accordingly (using the AR calculation formular you posted earlier) > Display aspect ratio of the uncropped video is 16x9. Factoring in the crop values the actual aspect ratio is 1.9:1, or approximately 1.85:1. > TinyMediaManager 3.1 shows this video as having a 1.78:1 aspect ratio. Hmm... since this value is below 2, it should haven been always "rounded" to 1.85. Dunno how the 1.78 came from. 1.9 and other common formats have been added recently, should be better with next build. Would be fine, if you could export another XML for us (from the letterboxed movie you posted last) RE: Anamorphic DVD - aspect ratio - mhendu - 2020-05-26 (2020-01-07, 16:03)myron Wrote: Well, whilst we get the detailed AR from mediainfo, we need to find a "common AR" for displaying (at least for an icon)Sorry, I never saw this reply for some reason. Here are a few examples. TinyMediaManager 3.1.5 still doesn't factor in the crop flags, although it does show the resolution based on the crop flags. Quote:Width : 1 920 pixelsThe above should have an aspect ratio of 2.39 but reports as 1.78. Quote:Width : 672 pixelsCorrectly reports as 1.78. Quote:Width : 672 pixelsIncorrectly reports as 1.78. This is actually 1.66. RE: Anamorphic DVD - aspect ratio - mlaggner - 2020-05-31 sorry, but according to your examples, I cannot imagine how I should write code off it: Post #1: Quote:Width : 720 pixelswe should use the display aspect ratio (this is what myron implemented) Post #14: Quote:Width : 1 920 pixelswe should NOT take the display ratio, BUT calculate it from original height/ width? Quote:Width : 672 pixelswe could calculate from width/height OR take display aspect ratio? Quote:Width : 672 pixelswe should calculate with original width/height and NOT take display aspect ratio? would be helpful if we get mediainfo XMLs for all these examples - according to these examples I cannot imagine how I should turn that into code |