I'm converting some 21:9 or other odd ratio letterboxed dvds to 720p mkvs using avisynth and ffmpeg.
But I'm wondering whether to crop the videos to the actual video image rather than keep the black borders? This is so I could have sharp black borders when its blown up on 1080p tvs.
Is having odd vertical resolutions going give issues to players though? Eg: One I did is 1280x528.
Or does it always have to be 1280x720? Do I need to explicitly put a 16:9 ratio in ffmpeg?
Help appreciated.
Try StreamFab Downloader and download from Netflix, Amazon, Youtube! Or Try DVDFab and copy Blu-rays! or rip iTunes movies!
+ Reply to Thread
Results 1 to 8 of 8
Thread
-
-
Leave the video in its original state e.g. 2.35:1, without black borders. They will be added automatically during playback in the player or on the TV.
-
-
Want my help? Ask here! (not via PM!)
FAQs: Best Blank Discs • Best TBCs • Best VCRs for capture • Restore VHS -
-
I never encode borders. Remember when widescreen film could be found on 4:3 DVDs with black bars top and bottom? When viewed on a 16:9 display, there'd be black bars all around the small picture in the centre. You mightn't always view the video on a 16:9 display. I'm not aware of any MKV capable player that requires 16:9 dimensions. The Blu-ray players here don't care about resolution when playing video via USB. Neither does the TV's media player.
For Blu-ray spec discs, the borders are required.
I've seen quite a bit of iTunes video with "odd" resolutions. 1276x720 or 1916x1076 etc. I doubt they'd do it if it was likely to be a problem for players.Avisynth functions Resize8 Mod - Audio Speed/Meter/Wave - FixBlend.zip - Position.zip
Avisynth/VapourSynth functions CropResize - FrostyBorders - CPreview (Cropping Preview) -
Thanks for confirming guys.
Edit: Just a quick note. I needed to add the aspect command in ffmpeg:
-aspect: 2.424
for the 1280x528 video as software players like VLC would stretch to fill a 16:9 screen.Last edited by Bassquake; 6th May 2020 at 07:46. Reason: ffmpeg command fix
Similar Threads
-
Auto Crop Black Borders
By m00511 in forum Video ConversionReplies: 17Last Post: 4th Apr 2022, 23:03 -
Add/Remove black borders in the top/bottom of a video without reencoding.
By November in forum EditingReplies: 10Last Post: 11th May 2019, 08:48 -
FFMPEG - Black Borders - [Please help]
By 21dresden21 in forum Video Streaming DownloadingReplies: 2Last Post: 12th Feb 2019, 08:51 -
Getting my head around Aspect Ratios, Resolutions and Black Borders
By Locarno1 in forum Newbie / General discussionsReplies: 7Last Post: 30th Apr 2017, 17:50 -
Remove black borders from DVD without loss
By DavidGGG in forum DVD RippingReplies: 15Last Post: 28th Oct 2015, 13:18