[Bug] Weird ASS karaoke colors - MX Player

Device Manufacturer & Model : Samsung Galaxy Tab S 10.5" (SM-T805)
Android Version : 4.4.2
Rom Info : Happens both on stock 4.4.2 and CF-Auto-Root by Chainfire. (KOT49H.T805XXU1ANFB)
Detailed Problem Description : See below.
Steps to reproduce the problem : See below.
In many videos with ASS karaoke effects, the karaoke effect colors get really weird (almost look inverted) on my Samsung Galaxy Tab S 10.5" (SM-T805). (I am however unable to replicate this on a Sony Xperia Tablet Z.)
This happens both with hardware acceleration (for drawing) on and off, speedup tricks on and off, and regardless of color mode (both on RGB-16, RGB-32 and YUV). SW decoder is used (the videos are 10-bit encodes).
One weird detail: if I pause with YUV, the still image still contains the color artifacts, but if I pause with RGB-16 or RGB-32 the color artifacts disappear on the still image (but return once I start playing again).
For some reason screenshots always turn out artifact-free, so I've taken some photos instead (see attached pictures). Again, it happens in a lot of (but not all) videos with karaoke effects, but these particular photos are from the intro (starting at 0:40) of:
[DameDesuYo] Junketsu no Maria - 05 (1280x720 10bit AAC) [2708C967].mkv
DDL link can be found here: damedesuyo.com/?page_id=6757
edit: Attached log. Moreover, it seems that if an ad is being displayed, the color artifacts remain even when paused with RGB-32, see newly attached even weirder photo 5.

usna said:
Device Manufacturer & Model : Samsung Galaxy Tab S 10.5" (SM-T805)
Android Version : 4.4.2
Rom Info : Happens both on stock 4.4.2 and CF-Auto-Root by Chainfire. (KOT49H.T805XXU1ANFB)
Detailed Problem Description : See below.
Steps to reproduce the problem : See below.
In many videos with ASS karaoke effects, the karaoke effect colors get really weird (almost look inverted) on my Samsung Galaxy Tab S 10.5" (SM-T805). (I am however unable to replicate this on a Sony Xperia Tablet Z.)
This happens both with hardware acceleration (for drawing) on and off, speedup tricks on and off, and regardless of color mode (both on RGB-16, RGB-32 and YUV). SW decoder is used (the videos are 10-bit encodes).
One weird detail: if I pause with YUV, the still image still contains the color artifacts, but if I pause with RGB-16 or RGB-32 the color artifacts disappear on the still image (but return once I start playing again).
For some reason screenshots always turn out artifact-free, so I've taken some photos instead (see attached pictures). Again, it happens in a lot of (but not all) videos with karaoke effects, but these particular photos are from the intro (starting at 0:40) of:
[DameDesuYo] Junketsu no Maria - 05 (1280x720 10bit AAC) [2708C967].mkv
DDL link can be found here: damedesuyo.com/?page_id=6757
edit: Attached log. Moreover, it seems that if an ad is being displayed, the color artifacts remain even when paused with RGB-32, see newly attached even weirder photo 5.
Click to expand...
Click to collapse
It looks like due to the way subtitles rendered.
We are going to add alternative rendering mechanism in the future.

bleu8888 said:
It looks like due to the way subtitles rendered.
We are going to add alternative rendering mechanism in the future.
Click to expand...
Click to collapse
Thank you for investigating this problem! I'm relieved that there's nothing wrong with my particular device and looking forward to the alternative rendering mechanism then.

I have problem to drawings on MX player I don't know why but my account have 108 ₹ on account please give me a valuable resion

Related

[Live wallpaper] Video Live Wallpaper 0.84b

Another creation of mine.
This is a blank live wallpaper that allows you to set your own video as a live wallpaper animation!
Lots of codecs and formats are supported.
You need to have your own video (preferably in MPEG-1 or MPEG-2 or divx) and set it in the Live Wallpaper's preferences. You can also set an entire folder (and optionally all its subfolders) and the Live Wallpaper will choose between all videos inside (randomly or not, your choice).
If you don't have any videos to play with, try this one or this one or this one. Download them with your computer and transfer them on your Android device, or downoad with the Android device directly (a common download destination is /sdcard/download). Then select one of them with the Video Live Wallpaper. (BTW, these videos are all reencoded electric sheeps designed by cqfd93 of the electric sheep project. Original links to the sheeps: 22906|22706|22551)
The preferences of the Video Live Wallpaper include Help which should help you get started with making your video(s) as live-wallpaper-friendly as possible. A copy of the same help document can also be accessed from here if you want.
Use the following link on your android device or scan this QR code:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Alternatively, you can get the Video Live Wallpaper from this link:
VLW-084b.apk [via mediafire]
Or you can get it from the bottom of this post if you are registrered to xda-developers.
0.84b is the most current version.
Changelog:
0.84b, published 2011-03-20 [from post 36]
- fixed a bug which prevented this app from working on certain devices like Dell Streak (thanks to guyver3869 for testing)
- fixed a minor memory usage bug, still working on the bigger one
0.83b, published 2010-12-06 [from post 30]
- fixed a bug where memory consumption would slowly raise and eventually crashed the app
- a new feature/setting called Rendering mode is introduced
0.82b, published 2010-10-13 [from post 13]
- fixed a bug where changelog kept showing in settings. Sorry about this!
0.81b, published 2010-10-13 [from post 13]
- fixed a bug where selecting certain directories would cause force closes
- fixed a bug where selecting a different video file would have no effect (thanks to rod for discovering the bug)
- corrected grammatical errors in help
0.8b, published 2010-10-09 [from post 3]
- initial version
Frequently asked questions - FAQ
I've downloaded and installed it. How do I open it?
This is a live wallpaper, not an app, you can't open it in a traditional sense. That is why the market button is disabled and that is why there is no app icon.
Follow this procedure to set it as a live wallpaper:
go to your home screen
press the menu button on your device
select "Wallpaper"
select "Live Wallpapers" *
search and select for "Video Live Wallpaper"
select "Settings" to see the settings and select the video file to play back. Then select "Set wallpaper" to activate it
(* if you don't see "Live Wallpapers" option in the "Select wallpaper from" menu then your device probably doesn't support Live Wallpapers)
My video loads but it's very jerky/looses frames alot, and it makes the home screen app very slow. What to do?
Not every codec and format is the best choice for the Video Live Wallpaper. The maximum video resolution recommended is 854x480, the maximum FPS at that resolution is 20. You can go as high as 30, but then decrease the resolution. MPEG-1, MPEG-2, MJPEG and MPEG-4 are the best codecs to choose for, while x263 and x264 are two of the worst possible ones because they are complex. If you have your video in a .flv or .mp4 format, try converting them to .mpg or .avi. In any case, please read this page (also embedded in the live wallpaper's help) to learn which kinds of videos are good and which aren't.
Why is there no sound? Will sound ever be supported?
Sound will likely never be supported, because:
it's extremely hard (with some codecs even impossible) to sync live wallpaper video to its audio due to how live wallpapers are handled (they often have to pause, they are often killed or slowed down by android in order to make swiping look smoother, for example, etc.)
sound just doesn't belong in an app that would play it all the time (or at least all the time that you're on a home screen). Shorter non-spontanious sounds are fine in a live wallpaper, but a long-lasting sound that never stops just starts to annoy the user after a while. Imagine for example you're in a meeting/at your job/in class and you can't even check the time on your phone without interrupting the said event. Imagine someone calling you and you suddenly hear two sounds out of your phone. Imagine listening to mp3s and being in the home menu at the same time. Sound just shoudn't be a part of any live wallpaper.
Please enable Move to SD.
No. Live wallpapers shouln't be movable to the SD. To learn why, read the official developer guide by Google.
Why does this Live wallpaper require internet access?
It's to download and show ads. They appear in the Live wallpaper's settings.
I can't find this on the market. Where is it?
Try to access it on your device directly using this link. If your Market can't find it then you probably have a version of Android prior to 2.1 which doesn't support Live Wallpapers.
I've downloaded the APK but I don't know how to/can't install it. How do I do it?
Try this:
on the phone, go to Settings -> Applications -> check "Unknown sources" *
find yourself a file browser on the Market. ASTRO File Manager is a good choice
open your file browser app, search for the APK file on your SD card and launch it. The phone should offer you a dialog to install the live wallpaper (or to select the Package Installer)
later when installed, go to home screen, press the menu key, select Wallpaper -> Live Wallpapers, search for Video Live Wallpaper
(* if your phone doesn't show the "Unknown sources" option, your carrier has disabled it. You might want to try one of the APK sideloading applications instead, like this one (you need a PC))
I can't download the APK. My phone says "Cannot download. The content is not supported on this phone". What to do?
Try downloading the app from the market first. If you can't, then download the APK with your computer and transfer the APK to the phone's SD Card. Or download with your phone using a downloading app, like ByteTornado.
This LWP is very cool. Thanks! How can I contribute?
In a number of ways:
by contacting me if you have any issues, not mentioned in this FAQ
by saying thanks
by buying me a cup of coffee or a pizza
great job! trying this now
Awesome job, it does work with some mp4 videos too, just a thought, you can try adding zoom out and timed
Sent from my Nexus One using XDA App
Sounds great, but how much does it hammer the battery?
Naffets said:
Sounds great, but how much does it hammer the battery?
Click to expand...
Click to collapse
i havent seen too much battery drain with this so so far so good.
@OP are there any ideal settings for the best quality or performance?
trying this now, has google added slovenia to to market list (so you can release paid apps on market?)
very cool app Good job.
cheddie said:
i havent seen too much battery drain with this so so far so good.
@OP are there any ideal settings for the best quality or performance?
Click to expand...
Click to collapse
Depends on the codec of the video. Mpeg1, mpeg2, mjpeg and divx are amongst the best, x264 (mp4) is not great because it's complex to decode. See help for details for the best codecs and resolutions/frame rates. Or just do the similar to the sample videos: 560x420 (4:3), 20 fps (can go up to 23.976), divx codec, 2500-3500 kbps.
frankinstine said:
Awesome job, it does work with some mp4 videos too, just a thought, you can try adding zoom out and timed
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
A tough one, since the rendering is heavily optimized on the idea that the entire video doesn't have to be decoded.
What do you mean by timed?
ermacwins said:
trying this now, has google added slovenia to to market list (so you can release paid apps on market?)
Click to expand...
Click to collapse
No, not yet (what a shame since we're in EU, we can't even buy paid apps yet).
awesome app!!!
LWP is added to the market. The link and the QR code are added to the first post.
Just downloaded, it seems very interesting!!
Sent from my Nexus One using XDA App
New version published:
0.82b, published 2010-10-13
- fixed a bug where changelog kept showing in settings. Sorry about this!
0.81b, published 2010-10-13
- fixed a bug where selecting certain directories would cause force closes
- fixed a bug where selecting a different video file would have no effect (thanks to rod for discovering the bug)
- corrected grammatical errors in help
Great app and premise, but imo doesn't really seem worth it since the quality of the video and fps have to be lowered so much. I'll go ahead and download this to see just how much the quality is degraded as I've got some great hidef videos I wouldn't mind having as wallpaper. Has this been an issue with anyone else?
I haven't had a problem with the fps of any of the 720p youtube vids I've downloaded, though 720p ends up looking pixellated. 270x360 looks better. Using http://www.youtube.com/watch?v=92jyNSaNmT4 and it looks pretty good.
cr6 said:
Great app and premise, but imo doesn't really seem worth it since the quality of the video and fps have to be lowered so much. I'll go ahead and download this to see just how much the quality is degraded as I've got some great hidef videos I wouldn't mind having as wallpaper. Has this been an issue with anyone else?
Click to expand...
Click to collapse
No reason not to try and experiment. For example on my Nexus, a 1280x720 video in MPEG-1 format will play at about 15 FPS if I disable frame skipping.
If I wanted it faster, I could crop it down to 720x720, which would then be able to be played at 20 FPS.
If I cropped it down further to 432x720 (which is the same ratio as the phone's 480x800 display), it would easily play at 25 FPS which is enough for my eyes, but still in full display's resolution.
If you know how to use ffmpeg, then this command will crop and convert a 720p .mkv file down to 720x720 at 20 FPS .mpg:
Code:
ffmpeg -i "720-input.mkv" -an -vcodec mpeg1video -vb 8000k -vf "crop=280:0:720:720" -r 20 "720-output.mpg"
Or this command would crop it to 432x720 at 25 FPS:
Code:
ffmpeg -i "720-input.mkv" -an -vcodec mpeg1video -vb 8000k -vf "crop=424:0:432:720" -r 25 "720-output.mpg"
paulk_ said:
I haven't had a problem with the fps of any of the 720p youtube vids I've downloaded, though 720p ends up looking pixellated. 270x360 looks better. Using http://www.youtube.com/watch?v=92jyNSaNmT4 and it looks pretty good.
Click to expand...
Click to collapse
Wicket video!
Flv and Mp4, while they work, are not the best formats to use with VLW. Try to convert them to .avi (divx) or .mpg (MPEG-1) for even better results.
Find your own way to convert, or use the free ffmpeg tool in one of the following two ways:
Code:
ffmpeg -i "original.flv" -an -vcodec mpeg4 -vb 8000k "converted.avi"
ffmpeg -i "original.flv" -an -vcodec mpeg1video -vb 8000k "converted.mpg"
(bitrate is overrated at 8000k, but the quality will probably be very good)
Thanks for the info, I'll definately give it a try!
Would any one care to donate a little time to make a video tutorial on how to use this live wallpaper? How to select a file to play, how to select an entire folder, what options are there, what video sizes are bad, etc...
I would embed it in the main web page of the app (and of course thank the author):
http://android.ccpcreations.com/vlw/
best video specs
Hello pikipirs et all!
I donatated $10 bucks because I really like the idea of true video wallpaper on my N1 and hope that you continue to develop and improve the app!
One can find lots of great video loops on the net that can be used. Some of them look great (i.e. Wallpaper attachment). Others look poor quality (i.e fs21 attachment). And others stop all together sometimes.
So I guess what I would like is simple, step by step instructions on how to convert or optimize a video so that it looks great and runs smoothly. I've tried using MediaCoder for example to convert the videos that look bad to MPEG1 (which you indicated in the help section was the best format) but they still look bad. What is the best format? Size? Resolution? Frame-rate? So that it looks perfect and how can one convert a video to these specifications? Can any video, formatted correctly, look good?
Oh and another suggestion would be, instead of the app randomly picking videos and switching them all the time, what about the option to only switch it when you 'wake-up' the device so that it doesn't cut into another video while you are viewing it but continues to loop.
Thanks again for the great app. Like I said some vids I've found look great but still, it would be nice to know how to make any video look as good.
Bryce2010 said:
Hello pikipirs et all!
Click to expand...
Click to collapse
Hey.
Bryce2010 said:
I donatated $10 bucks because I really like the idea of true video wallpaper on my N1 and hope that you continue to develop and improve the app!
Click to expand...
Click to collapse
Thanks.
Bryce2010 said:
One can find lots of great video loops on the net that can be used. Some of them look great (i.e. Wallpaper attachment). Others look poor quality (i.e fs21 attachment). And others stop all together sometimes.
Click to expand...
Click to collapse
Be prepared for a long answer.
This is subjective, I guess. The video will show in as good a quality as it actually is. The VLW (video live wallpaper) always zooms into a video in such a way that it covers the entire height of the display, while its ratio is not changed. The video's width is then used as scrolling surface so it shifts when you swipe between home screens.
The first video you posted has a vertical resolution of 480. This resolution fits very well in the height of a small mobile display (whatever resolution it might be) so you don't see alot of pixels. In fact, 480 is the maximum vertical resolution that I recommend for VLW, as higher ones might start causing the animation to play slower/skip video frames.
The second video you posted has a vertical resolution of 220. This gets close to the lower bound of acceptible pixel density for your eyes. While this is good on your phone's battery (VLW doesn't have to struggle as much to decode the video), it's not good on you eyes, that is, you can see video pixels which spoils the experience. One idea that I would have for the second video is maybe to reencode it rotated by 90 degrees. This way its vertical resolution will become 400 (current width) which would be easier on the eyes. (hold back on the rotating/reencoding part a little longer, as I plan on adding an option to rotate videos in the VLW).
Videos may play slower or even stop if they are too large for the underpowered phone's processor to handle. If you've been using computers for the last 10 years, then you should remember the ones that struggled to even play divx files properly. Some computers (like netbooks) have problems playing back HD content even today. The same is true for your phone. While a common divx should be handled by VLW just fine, any HD content (720p or 1080p) is way to much to handle. I guess what I'm trying to say is, don't go overboard with the resolution and don't expect miracles from your phone's processor.
Bryce2010 said:
So I guess what I would like is simple, step by step instructions on how to convert or optimize a video so that it looks great and runs smoothly. I've tried using MediaCoder for example to convert the videos that look bad to MPEG1 (which you indicated in the help section was the best format) but they still look bad. What is the best format? Size? Resolution? Frame-rate? So that it looks perfect and how can one convert a video to these specifications? Can any video, formatted correctly, look good?
Click to expand...
Click to collapse
There is no easy way to describe how to convert videos, as it almost always depends on the original video itself. As I said, a video is as good as it actually is. Reencoding, converting and/or enlarging it digitally won't make it any nicer.
Format changing is reasonable when you are dealing with resolutions and sizes that become hard to handle by the phone. Imagine a video with 854x480 at 30 FPS (your usual 480p video on youtube, for example). VLW has to process 854*480*30=12,297,600 pixels each second if it wants to play the video in real time. If this video is in h264 (which 480p youtube videos with .mp4 extension are) then it's even worse because h264 codec is very complex, which makes the processing part even harder. That's why I recommend reencoding to a less complex format, like mpeg-1 or mpeg-4 (divx).
Best format globally in my opinion is divx (mpeg-4 .avi). It represents a good compromise between complexity and size for a given quality. If you want less complexity (=more battery live), go with videoCD format (mpeg-1 .mpg) which will require larger files for the same quality, but is easier to decode for VLW.
Also one other thing to note, .mpg files need a bit of time to reload. This makes them useless for looping animations as the animation appears to freeze when looping. This is true for a lot of other formats/codecs as well. Divx doesn't have that pause (well it does, but it's amost unnoticable).
Resolution/frame rate is another tough one. The easiest way of going about it is to calculate the processed pixels per second, as I did above for the youtube video example. You can find all the help on how to do this in the help section. If you get your videos from standard 16:9 or 4:3 sources, then a couple of good resolution/framerate combinations are described in the help section. I recommend 360p (640x360 for 16:9, 480x360 for 4:3 videos, both at 30 FPS) or 480p (854x480 for 16:9, 640x480 for 4:3 videos, both at 25 FPS) in divx format. Remember once again - the biggest factor in the appearent quality of a perfectly reencoded video, is its vertical resolution. be between 360 and 480 and you'll be fine. The second biggest factor is frame rate, hold that one between 30FPS for 360p and 25FPS for 480p.
Bryce2010 said:
Oh and another suggestion would be, instead of the app randomly picking videos and switching them all the time, what about the option to only switch it when you 'wake-up' the device so that it doesn't cut into another video while you are viewing it but continues to loop.
Thanks again for the great app. Like I said some vids I've found look great but still, it would be nice to know how to make any video look as good.
Click to expand...
Click to collapse
So you suggest adding an option to keep looping the same (but randomly choosen) video, and switch to another video only when the live wallpaper unpauses? That's a good idea. To a todo list...
PS: Are you on a mac or on Windows? I might be able to make a couple of simple scripts that use FFmpeg to convert videos with common ratios to better sizes/formats.

[Q] Video playing problem on Android 4.11

Hi everyone, I am new to this forum, this is my first thread.
I am in trouble with my tablet which is Onda v811.
I am having a video playing issue since I have updated my tablet to version 4.11 (on android 4.03 there wasn't a problem). Everything is perfect but the videos. When I want to play videos on browser (Dolphin, generally) or official Youtube app videos opening, playing but it is very small for the screen size. I make the video fullscreen but nothing changes. So, videos are opening, there is no problem with this but aspect ratio is not keeped and uses 1 of tenth of the screen, as I tried to show in the photo below.
Photo is not good but I drew lines to explain myself better.
White lines in the photo, marks the tablet's outer lines and screen. Inner yellow line surrounds the video. This is how a video looked on my tablet:
Picture: [http]://c1303.hizliresim.com/17/2/knwuc.jpg (sorry cannot paste links due to community rules)
I had uninstalled Adobe Flash Player and installed again (ver. 11.1) but didn't help. Searched the entire web but found nothing.
Has anyone got an idea about this problem? Any help is appriciated.
My English is not so good, sorry for that. I tried to explain, I hope i succeeded.

[Q] What type of scaling is MX Player using?

And how to change it?
It wasn't a problem on the N7000, but now on the N910F's 1440p screen the 1080p videos get upscaled with WAY too sharpening, ruining the image. Is there any way to use another scaling with less sharpening of the image?
There should be no sharpening since it uses what system uses and system uses bilinear. There're no options in MX player that affect scaling quality.
I see 2 possible cases: either display does this or this is post-processing apllied to media (manufactures love this thing, every PC gpu has "image worsener" options. Even my Z3 Compact has those). Try checking device settings for any kinds of "display/image enhancement" that could be turned off.
Does this happen when no scaling is happening (use bottom right button to select "100%" scaling mode)?
Does this happen when using S/W decoder?
I'm using this video to test scaling algorithms, can you try playing it (at default and 100% zoom) and take screenshots?
http://s000.tinyupload.com/index.php?file_id=75458987026854998049 (this will be played using H/W decoder)
http://s000.tinyupload.com/index.php?file_id=00692852724795150552 (this should force using S/W decoder)
vivan000 said:
There should be no sharpening since it uses what system uses and system uses bilinear. There're no options in MX player that affect scaling quality.
I see 2 possible cases: either display does this or this is post-processing apllied to media (manufactures love this thing, every PC gpu has "image worsener" options. Even my Z3 Compact has those). Try checking device settings for any kinds of "display/image enhancement" that could be turned off.
Does this happen when no scaling is happening (use bottom right button to select "100%" scaling mode)?
Does this happen when using S/W decoder?
I'm using this video to test scaling algorithms, can you try playing it (at default and 100% zoom) and take screenshots?
http://s000.tinyupload.com/index.php?file_id=75458987026854998049 (this will be played using H/W decoder)
http://s000.tinyupload.com/index.php?file_id=00692852724795150552 (this should force using S/W decoder)
Click to expand...
Click to collapse
Here it is, sorry for the delay.
HW:
http://puu.sh/hktEe/c21a7bd661.jpg
http://puu.sh/hktHg/c6e3a073a7.jpg
SW:
http://puu.sh/hktHs/63ddfbeb82.jpg
http://puu.sh/hktFY/947030aba1.jpg
Also, bonus:
http://puu.sh/hktNi/f47eab21d6.jpg
http://puu.sh/hktM0/b2962844b7.jpg
It does appear that the issue is not the scaling, but it's the decoding or something after that that ruins the quality (for example the vertical lines seen on full colors). I tried disabling every "image enhancement" I found in the settings of the Note4, without much success.
First, I forgot to mention that by default SW decoder uses 16-bit (5/6/5-bit) RGB which is really bad (long time ago most of the devices couldn't handle 24-bit color but those times passed). Settings -> decoder -> color format (at the bottom) -> RGB 32-bit (YUV is actually faster and better, but less predictable).
Images for reference:
bilinear / cropped (it didn't like height of the video not being mod8 and cropped it a bit, my fault) bilinear
bicubic (just for a reference - how sharp scaler actually looks) / cropped bicubic
So it still bilinear, and indeed there's some sharpening - but it's very hard to spot without high magnification.
100% / cropped and resized back to match HW
Well, my conclusion is that it sharps everything for a tiny amount, but only after scaling (usually postprocessing does it before). And it seem to affect SW mode too... It makes me wonder if does this for everything on a screen.
However those vertical lines are really weird.
Usually postprocessing works only with hardware decoding because it's easy for a driver to mess there (after the decoding, before giving the picture to a renderer). In SW mode player works like any other app (like game, browser or image viewer), system doesn't know that it plays video.
Here's what my Z3 Compact could do: before / mode1 / mode2. Now that's terrible Luckily it could be turned off.
If you don't mind I have another test (based on http://www.lagom.nl/lcd-test/sharpness.php), to test if it sharps everything.
That image is made that way that even tiny amount of sharpness is visible. If everything is ok - it must look solid gray, if sharpening happens - some squares become brighter (there're examples on that site). But I'm not sure if it would be representative on such screen because it has non-RGB subpixel layout.
http://s29.postimg.org/ql7twm0mt/1440p.png (download it and open in image viewer, without zooming - it's 2560x1440 and should be displayed as 1:1).
1) Does it look solid or some squares are lighter/darker?
2) Could you take a screenshot of it (of this picture opened in image viewer to see if it sharps it)?
As for vertical lines... if you want I could provide a build of a library that I'm working on. It's works like a game (doesn't rely on media system) and should be able to render/display image perfectly unless system itself does something weird. If it does - and there's nothing in settings that affects it - then nothing could be done (except talking with samsung support and hoping that they'll fix it). If it doesn't - then there's some hope.
vivan000 said:
First, I forgot to mention that by default SW decoder uses 16-bit (5/6/5-bit) RGB which is really bad (long time ago most of the devices couldn't handle 24-bit color but those times passed). Settings -> decoder -> color format (at the bottom) -> RGB 32-bit (YUV is actually faster and better, but less predictable).
Images for reference:
bilinear / cropped (it didn't like height of the video not being mod8 and cropped it a bit, my fault) bilinear
bicubic (just for a reference - how sharp scaler actually looks) / cropped bicubic
So it still bilinear, and indeed there's some sharpening - but it's very hard to spot without high magnification.
100% / cropped and resized back to match HW
Well, my conclusion is that it sharps everything for a tiny amount, but only after scaling (usually postprocessing does it before). And it seem to affect SW mode too... It makes me wonder if does this for everything on a screen.
However those vertical lines are really weird.
Usually postprocessing works only with hardware decoding because it's easy for a driver to mess there (after the decoding, before giving the picture to a renderer). In SW mode player works like any other app (like game, browser or image viewer), system doesn't know that it plays video.
Here's what my Z3 Compact could do: before / mode1 / mode2. Now that's terrible Luckily it could be turned off.
If you don't mind I have another test (based on http://www.lagom.nl/lcd-test/sharpness.php), to test if it sharps everything.
That image is made that way that even tiny amount of sharpness is visible. If everything is ok - it must look solid gray, if sharpening happens - some squares become brighter (there're examples on that site). But I'm not sure if it would be representative on such screen because it has non-RGB subpixel layout.
http://s29.postimg.org/ql7twm0mt/1440p.png (download it and open in image viewer, without zooming - it's 2560x1440 and should be displayed as 1:1).
1) Does it look solid or some squares are lighter/darker?
2) Could you take a screenshot of it (of this picture opened in image viewer to see if it sharps it)?
As for vertical lines... if you want I could provide a build of a library that I'm working on. It's works like a game (doesn't rely on media system) and should be able to render/display image perfectly unless system itself does something weird. If it does - and there's nothing in settings that affects it - then nothing could be done (except talking with samsung support and hoping that they'll fix it). If it doesn't - then there's some hope.
Click to expand...
Click to collapse
Here is the screenshot:
http://puu.sh/hkJDS/770ba02860.jpg

Can not Crop video - ONLY Stretch - Amlogic S812 Android TVbox and SONY AndroidTV

Dear All,
I just bought an Amlogic S812 the Android TV box to replace the old one (Allwiner A31s Android TVbox)
Currently when watching movies with the software MXplayer , it can not Crop the Screen Size to remove black place on top and bottom of screen, it only can use Stretch option to stretch vertically, does not stretch horizontally, so making everything in movies stretch out :crying:
I do not experience this problem on older devices using Allwiner A31s chip.
Pls help me fix this issue
P/S: I face this issue on SONY Bravia 55X9000C Android TV too.
Thank you all.
Anybody??
Same issue with the newest s905x3 chipset, Android 9.0... I don't have all the options in my settings, I can't even place apps on homescreen using Nova Launcher, I can't see the bottom drawer to open all running apps. Do manufacturers modify the Android version they put on these boxes? Is there a way to fix these issues, especially the video player cropping? In my box no player can crop, only stretches vertically, leaving me with an incorrect aspect ratio.
Hi everyone.
This may be a solution.
I get to realise that this thread has a long history and there is no proper answer.
I too had the same problem while using MX player in Android tv. But some video are able to crop view. After many thoughts I get to realise that there are two kind of popular encoding in mkv format.
Videos encoded in H.264 have no problem. But if it is H.265 commonly known as HEVC it will no crop or zoom in.
I currently use H.264 video for maximum use of my tv screen.
Please Google these encoding method for better understanding. There are some interesting comparison between two.
Happy watching

[Feature Request] Internal Capture

I don't know if the title is appropriate for this request.
I mean MX Player would be better with a button to capture a shot from a video.
Why need an internal capture when Android OS already has a capture feature?
Because capture in Android OS simply interprets what is shown on the screen and saves it and I think the interpretation process is unnecessary because the data is already included in the video file. (I don't know much about video encoding/decoding, so if im wrong sorry for my ignorance on the subject) The resulting image is poor in quality and most importantly takes up TOO much space. If I capture the same scene on the same video by video playing programs (KMP, etc), I get better capture image small in size also(as much as 20 times smaller).
Another problem with Android capture is that ads (I don't know the free version still shows ads when tje video is paused) or soft-keys (although it can be hidden by the app) can be captured together.
And finally, capture is done not considering the size of the video. Android merely captures the screen as shown, the captured image's resolution is the same to the device's screen's resolution, which is a problem when playing videos with higher or lower resolutions or when the video's height-width ratio is different to that of the device's screen(4:3, 16:10, CinemaScope, etc).
So, I think it would be wonderful if you would consider including an internal capture feature in the app.
I think you're working on Frame-by-Frame feature, so I guess it can be related to that.(again, sorry if Im wrong)
Im always happily using MX Player for years and I appereciate your efforts. :laugh:
11si17bun said:
I don't know if the title is appropriate for this request.
I mean MX Player would be better with a button to capture a shot from a video.
Why need an internal capture when Android OS already has a capture feature?
Because capture in Android OS simply interprets what is shown on the screen and saves it and I think the interpretation process is unnecessary because the data is already included in the video file. (I don't know much about video encoding/decoding, so if im wrong sorry for my ignorance on the subject) The resulting image is poor in quality and most importantly takes up TOO much space. If I capture the same scene on the same video by video playing programs (KMP, etc), I get better capture image small in size also(as much as 20 times smaller).
Another problem with Android capture is that ads (I don't know the free version still shows ads when tje video is paused) or soft-keys (although it can be hidden by the app) can be captured together.
And finally, capture is done not considering the size of the video. Android merely captures the screen as shown, the captured image's resolution is the same to the device's screen's resolution, which is a problem when playing videos with higher or lower resolutions or when the video's height-width ratio is different to that of the device's screen(4:3, 16:10, CinemaScope, etc).
So, I think it would be wonderful if you would consider including an internal capture feature in the app.
I think you're working on Frame-by-Frame feature, so I guess it can be related to that.(again, sorry if Im wrong)
Im always happily using MX Player for years and I appereciate your efforts. [emoji23]
Click to expand...
Click to collapse
From your description it looks like you looking for trimming feature. There are many apps are available in Google Play which can trim the video without recoding. It will do the job as you are expecting.
Sent from my SM-G900H using Tapatalk
ktsamy said:
From your description it looks like you looking for trimming feature. There are many apps are available in Google Play which can trim the video without recoding. It will do the job as you are expecting.
Sent from my SM-G900H using Tapatalk
Click to expand...
Click to collapse
Yes, I'm aware that there are lots of video trimming/frame break and capturing/editing apps available. But I was just thinking that it would be nicer to have a capturing (I believe it is different from trimming, since capturing is about extracting just one frame out of the video while trimming is extracting multiple continued frames and merging it) feature included in the MX Player so that I can easily watch a video and capture "a" frame without opening another app while watching a video. It is not a big and urgently needed feature, but it would make things more easier.
11si17bun said:
Yes, I'm aware that there are lots of video trimming/frame break and capturing/editing apps available. But I was just thinking that it would be nicer to have a capturing (I believe it is different from trimming, since capturing is about extracting just one frame out of the video while trimming is extracting multiple continued frames and merging it) feature included in the MX Player so that I can easily watch a video and capture "a" frame without opening another app while watching a video. It is not a big and urgently needed feature, but it would make things more easier.
Click to expand...
Click to collapse
[emoji2] [emoji2] [emoji2]
It's my mistake. Apologizes for that. I have misunderstood the word Capture.
Anyway I will convey your request about frame extraction/capture feature to the developer.
Sent from my SM-G900H using Tapatalk

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