Related
Ok, so people have found that standard USB cameras don't work on these units. The only known working camera is actually a fully self-contained recording device, that really only uses the USB wire for power and a few pointless controls.
https://www.carjoying.com/car-acces...-for-joying-new-android-system-head-unit.html
Really, if you're going to make the camera self contained, then what the heck is the point of bothering with the hookup with the head unit to begin with? Makes no sense.
Now the reason they did this is quite obvious... in their OLDER head units, they used the complete piece of trash ROCKCHIP 3188 SoC. I'm referring, of course, to MTC units. Those units would be *completely crippled* if you tried to record video on them, since they had neither video encoder nor even video decoder hardware blocks, which means that the video processing would be done entirely on the CPU! So they sold a camera that would mask this problem by recording the video itself!
The Intel SoC's have a video CODEC, so obviously the right way to do this now is to actually record the video on the head unit, using standard file formats.
I initially theorized that they had crippled either the kernel or the camera HAL.
So last night I watched the kernel log while plugging a PROPER USB camera in, and found something very interesting;
1) The kernel detected the camera, and properly associated it with the UVC video driver!
2) It was assigned a devfs entry of /dev/video5 --- 5? FIVE?
That's interesting. Why 5? Because there are already entries of /dev/video0 through /dev/video4.
Wonder what those extra inputs correspond to? Typically, when you plug in a device like a camera, the devfs entry is created dynamically. Yes, in this case, it was! But it was created at 5 (the 6th video device). Very likely, the HAL is hardcoded to use specific inputs from 0-4. I'm not aware of any Android mechanism for manually selecting the device. So blank screen on "DVR"? Because its trying to pull video from a video device that has no video INPUT.
It is certainly worth some investigation. I wonder what those inputs correspond to. Don't suppose that they could actually have video feeds from things like BACKUP camera and VIDEO IN, that feed Android, could they? Note that some video devices can create multiple devfs entries that correspond to different modes of operation, which could explain why there are so many.
It is also possible that the FYT5009 SoM has video input option that may not even be hooked up. Depends on how the MCU board is wired up.
I also note that in the configuration options for backup camera, there is an option for it to use a USB camera.
EDIT:
Checked into the camera HAL, it has hardcoded values for /dev/video0 through /dev/video3. What this means, is that there is currently no way in hell that Android can access /dev/video5, which is where an external USB camera is attached.
THIS IS SOMETHING WE CAN WORK WITH!!!!
AOSP USB Camera HAL:
https://android.googlesource.com/platform/hardware/libhardware/+/master/modules/usbcamera
Found something more...
There is an executable at /sbin/camcap
What it is, is a butchered build of ffmpeg
Which, of course, is licensed as GPL/LGPL.
So... intentionally and knowingly violating GPL, else why would they be hiding the identity of the program!
Great findings!
I have a USB camera I'd like to use as a DVR on one of the intel headunits. I really hope this can be done/
Good news, everyone!
I have successfully captured a video from a generic uvcvideo USB camera! And even better, over a test with a duration of about 2 minutes of HD MJPEG at whatever maximum frame rate it was able to deliver, the CPU utilization never exceeded 2% of *one* core.
Now truth is that I completely bypassed Android for this test, and ran ffmpeg directly with /dev/video5. Now this actually is a great option for running dashcam, since it is low overhead, greater running stability (no worry about Android coming around and killing the process!), and very effective.
I will begin working on a utility for managing it.
I would like to be able to capture the camera's audio stream as well, mux multiple cameras into a single video file, time based auto splitting, and a subtitle track containing a coordinate / speed readout from GPS. Ffmpeg should be able to handle all of it, except interfacing with the GPS, I will need something else to come up with the data stream for that.
doitright said:
Good news, everyone!
I have successfully captured a video from a generic uvcvideo USB camera! And even better, over a test with a duration of about 2 minutes of HD MJPEG at whatever maximum frame rate it was able to deliver, the CPU utilization never exceeded 2% of *one* core.
Now truth is that I completely bypassed Android for this test, and ran ffmpeg directly with /dev/video5. Now this actually is a great option for running dashcam, since it is low overhead, greater running stability (no worry about Android coming around and killing the process!), and very effective.
I will begin working on a utility for managing it.
I would like to be able to capture the camera's audio stream as well, mux multiple cameras into a single video file, time based auto splitting, and a subtitle track containing a coordinate / speed readout from GPS. Ffmpeg should be able to handle all of it, except interfacing with the GPS, I will need something else to come up with the data stream for that.
Click to expand...
Click to collapse
Well, that's worth being an app on Play store. Keep up the gr8 work!
KamaL said:
Well, that's worth being an app on Play store. Keep up the gr8 work!
Click to expand...
Click to collapse
I have no interest or intention of touching play store.
doitright said:
I have no interest or intention of touching play store.
Click to expand...
Click to collapse
Well, that was a sort of a compliment, but I'm not surprised of your reply...
KamaL said:
Well, that was a sort of a compliment, but I'm not surprised of your reply...
Click to expand...
Click to collapse
One of the great strengths of Android is that you don't need to mess around with the "manufacturer's only authorized software source" -- as in apple. Reality is that play store is only there for people who don't have the faintest idea about how powerful their devices actually are. Apple's store is there to restrict their users' freedom.
So I've been playing with ffmpeg, and have figured out how to use it to capture any number of v4l2 video streams into a single mkv file, with unequal video configurations, and automatic time-based file splitting.
Its pretty cool what you can do.
For instance, BETTER camera does mjpeg at high resolution (say 800x600, or even higher), 30 fps. Crappy camera only does raw 320x240 at 5 fps. I can simultaneously shove BOTH of their streams into a single mkv file **WITHOUT TRANSCODING THE STREAMS***.
This makes sense because (1) you might have a bunch of leftover cameras that you want to use, (2) you probably want to go with a higher quality on the front than the back -- backwards cameras are a lot less interesting (though still useful enough to make sense to record).
In any case, this is going to be pretty nice.
I wonder if our head units have one USB port with a hub chip? Or if they have two genuine USB ports? Easy enough to find out, I just haven't bothered to look yet.
One "issue" I'm having with the CHEAP USB cameras I'm playing around with, is that I can't select framerate or quality. It would be nice to be able to tell the camera to increase the compression ratio and drop the framerate down to, say 5 fps.... since it would make the storage requirements significantly lower. Of course, I could turn on transcoding, but couldn't use the hardware codec with ffmpeg, which means it would be on the CPU. I wonder if the cameras support it? Or if its a limitation of uvcvideo (the driver)?
Great job!
What USB camera are you currently using?
This is the one I bought, thinking it was a rear view camera! Oh well....
http://www.ebay.com/itm/351843416292?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
Claims resolution to be 728 * 582 , not sure if it's true. It would be great if I could use it for basic DVR functionality on the Intel 2GB units.
Now that @doitright is banned, is there anyone capable of continuing his work with this issue?
I'd love to use my USB camera for DVR.
I contacted Joying with this regard, and they weren't helpful at all. They keep claiming on their USB camera is supported. True nonsense.
why was he banned????
gtxaspec said:
why was he banned????
Click to expand...
Click to collapse
Read some of his posts on the forum and you'll understand.
Is anyone here capable of doing the same changes for adding support to USB DVR ??
KamaL said:
Read some of his posts on the forum and you'll understand.
Is anyone here capable of doing the same changes for adding support to USB DVR ??
Click to expand...
Click to collapse
I ve read his last 25 posts and I cant see anything that would get his account temporally disabled (XDA doesnt ban people).
typos1 said:
I ve read his last 25 posts and I cant see anything that would get him banned.
Click to expand...
Click to collapse
AFAIK Some were deleted , but it doesn't matter. Let's get back to topic
Weird, he was a helpful user, giving us full bluetooth and all. Seems counterproductive to ban a good resource, oh well....
Hilari0 said:
Weird, he was a helpful user, giving us full bluetooth and all. Seems counterproductive to ban a good resource, oh well....
Click to expand...
Click to collapse
Yep, I know. I'm trying to contact him through the official Joying forums, he was active there too, but no traces of him yet. I'm sure he could have found a solution for this issue.
I have my USB dvr cam installed in the car, waiting for a fix.
Hilari0 said:
Weird, he was a helpful user, giving us full bluetooth and all. Seems counterproductive to ban a good resource, oh well....
Click to expand...
Click to collapse
KamaL said:
Yep, I know. I'm trying to contact him through the official Joying forums, he was active there too, but no traces of him yet. I'm sure he could have found a solution for this issue.
I have my USB dvr cam installed in the car, waiting for a fix.
Click to expand...
Click to collapse
Not weird at all if he broke forum rules (which he must have to be suspended).
Unless you think that if someone is helpful then theyre allowed to break the rules ?
Great news everyone, we have a working solution for running any USB cam on the joying intel units!
I'll let you guess who is working on it. check the progress on github:
https://github.com/lbdroid/FFMpeg-DashCam
It's working pretty well for me!!
KamaL said:
I'll let you guess who is working on it.
Click to expand...
Click to collapse
Thanks to the wonderful worker(@doitright), everyone can talk, only some can and will work!!Kudos
KamaL said:
Great news everyone, we have a working solution for running any USB cam on the joying intel units!
I'll let you guess who is working on it. check the progress on github:
https://github.com/lbdroid/FFMpeg-DashCam
It's working pretty well for me!!
Click to expand...
Click to collapse
Kudo's to him! Hopefully he still read this forum.
There was a post where someone suggested using the AIMP player, I haven't been able to find it again (to give the proper credit), but it started because someone noticed how sound played different depending on what app played the sound or music.
It seems AIMP uses the Snapdragon 24-bit DSP (or DAC?) , which delivers a high quality output, I was actually surprised when I heard the difference.
My question is where or what could be changed so the default audio output uses the high quality DSP? So videos games and even ringtones and notifications (seriously it sounds much better) use it as well.
There is a great mod that activates the headspeaker when playing media, and even allows using both speakers with a stereo configuration, so perhaps using the DSP by default is also doable.
it was me who suggested the AIMP player in a previous post. i would however like to inform you that audio output using the OpenSL ES API instead of the default AudioTrack output will give you the raw audio of the DAC. Media Players which have this option will definitely sound much better. To my knowledge i have seen only VLC media player to support this feature (you have to change the output in setting unlike in AIMP). Custom sound mods are software level implementations which will just give you an amplified sound irrespective of quality. PowerAMP and MX has this option too but doesnt seem to work.
For better audio quality through speakers the default AudioTrack API works better.
asrone96 said:
it was me who suggested the AIMP player in a previous post. i would however like to inform you that audio output using the OpenSL ES API instead of the default AudioTrack output will give you the raw audio of the DAC. Media Players which have this option will definitely sound much better. To my knowledge i have seen only VLC media player to support this feature (you have to change the output in setting unlike in AIMP). Custom sound mods are software level implementations which will just give you an amplified sound irrespective of quality. PowerAMP and MX has this option too but doesnt seem to work.
For better audio quality through speakers the default AudioTrack API works better.
Click to expand...
Click to collapse
Oh it was you, awesome recommendation indeed! Now normal audio output sounds muffled to me, the DAC audio quality is certainly much better.
Thank you, will look into it!
Avan7 said:
Oh it was you, awesome recommendation indeed! Now normal audio output sounds muffled to me, the DAC audio quality is certainly much better.
Thank you, will look into it!
Click to expand...
Click to collapse
Sure man, ZUK has done something which modifies the audio quality before getting into our ears. I am sure its the audio driver. If someone can change that we should get a better audio quality.
Ummm I'm so unlucky, I've my JACK bricked :silly:. And I'm finding some way to route audio through USB using "USB-C to 3.5mm converter", same as Le2. I could not find a decent type-C headphone. I use Bluetooth reciever, and it's not even close to 3.5 mm jack. Any clue ? I'VE bought Poweramp, and it's useless now.
For those who use PowerAmp, update to latest build, i.e. 704 from official forum. Zuk Z2 does support HiRes Audio Output. Latest Play Store beta channel only have 703 build, which doesn't support HiRes Audio output in N.
kima09 said:
For those who use PowerAmp, update to latest build, i.e. 704 from official forum. Zuk Z2 does support HiRes Audio Output. Latest Play Store beta channel only have 703 build, which doesn't support HiRes Audio output in N.
Click to expand...
Click to collapse
When I enable hi-res output, it fails. I don't think it is working.
kima09 said:
For those who use PowerAmp, update to latest build, i.e. 704 from official forum. Zuk Z2 does support HiRes Audio Output. Latest Play Store beta channel only have 703 build, which doesn't support HiRes Audio output in N.
Click to expand...
Click to collapse
Can't find build 704. Will you please post a link?
asrone96 said:
it was me who suggested the AIMP player in a previous post. i would however like to inform you that audio output using the OpenSL ES API instead of the default AudioTrack output will give you the raw audio of the DAC. Media Players which have this option will definitely sound much better. To my knowledge i have seen only VLC media player to support this feature (you have to change the output in setting unlike in AIMP). Custom sound mods are software level implementations which will just give you an amplified sound irrespective of quality. PowerAMP and MX has this option too but doesnt seem to work.
For better audio quality through speakers the default AudioTrack API works better.
Click to expand...
Click to collapse
Latest version of MX Player (1.9.5 & 1.9.7) support change of audio output method. Although no big difference with movie files, maybe difference can be felt when listening to flac audio.
Incrovantilist said:
Latest version of MX Player (1.9.5 & 1.9.7) support change of audio output method. Although no big difference with movie files, maybe difference can be felt when listening to flac audio.
Click to expand...
Click to collapse
MX player doent work. it works with vlc and aimp only
asrone96 said:
MX player doent work. it works with vlc and aimp only
Click to expand...
Click to collapse
Maybe true, coz I found no difference even in movies with uncompressed 6 channel & 5.1 audio. But option exists, so we have hope for it to be working in future releases.
Update for Poweramp 704_universal - Doesn't work properly yet. No observable difference in quality even with flac. I've been using the 704 version for quite a while now, also on 3 different phones. None of the three have supported high res properly. On my OPX it usually caused the app to crash. Maybe with the long awaited update to v3 might make it work properly.
Incrovantilist said:
Maybe true, coz I found no difference even in movies with uncompressed 6 channel & 5.1 audio. But option exists, so we have hope for it to be working in future releases.
Update for Poweramp 704_universal - Doesn't work properly yet. No observable difference in quality even with flac. I've been using the 704 version for quite a while now, also on 3 different phones. None of the three have supported high res properly. On my OPX it usually caused the app to crash. Maybe with the long awaited update to v3 might make it work properly.
Click to expand...
Click to collapse
yeah...those options make no difference ...only AIMP works for now...in the beta release of AIMP there is an option to change audio output too
d3vyarth said:
Can't find build 704. Will you please post a link?
Click to expand...
Click to collapse
If, like me, your preferred player is Poweramp, you can make it sound like AIMP's OpenSL output. besides enabling OpenSL as output method, open this file /data/data/com.maxmpz.audioplayer/shared_prefs/com.maxmpz.audioplayer_preferences.xml, find the string osl_headset_float and set its value to true and save it.Then force close PowerAMP and open again, the audio quality will match that of AIMP. But anyways, if you are really a audiophile, using VLC (opensl output ofc) gives the best possible quality, just saying
samsungrockz said:
If, like me, your preferred player is Poweramp, you can make it sound like AIMP's OpenSL output. besides enabling OpenSL as output method, open this file /data/data/com.maxmpz.audioplayer/shared_prefs/com.maxmpz.audioplayer_preferences.xml, find the string osl_headset_float and set its value to true and save it.Then force close PowerAMP and open again, the audio quality will match that of AIMP. But anyways, if you are really a audiophile, using VLC (opensl output ofc) gives the best possible quality, just saying
Click to expand...
Click to collapse
Yes I use Poweramp, thanks for the workaround
Audio breaks when i use open sl audio output. Do you ever face this problem or my mobile is defective.
@abhishek said:
Audio breaks when i use open sl audio output. Do you ever face this problem or my mobile is defective.
Click to expand...
Click to collapse
force stop vlc and open again... It works...
d3vyarth said:
Ummm I'm so unlucky, I've my JACK bricked :silly:. And I'm finding some way to route audio through USB using "USB-C to 3.5mm converter", same as Le2. I could not find a decent type-C headphone. I use Bluetooth reciever, and it's not even close to 3.5 mm jack. Any clue ? I'VE bought Poweramp, and it's useless now.
Click to expand...
Click to collapse
I have the converter as well as ZUK Z2 (with my wife), I'll check if audio through USB-C works and if the hardware output works or not (provided my wife doesn't get cranky over my testing )
Is honor 8 pro capable of playing X265 10bit 1080p hevc video?
I've tried samples from jelly fish with stock player, mx player n vlc. None works. Tested the same on friend's op3t phone n it played smoothly with stock player. Even X265 10bit 120mbps 4k video was played without lag on op3t. But this honor 8 pro cant even play 5mbps X265 10bit video?
So is this hardware issue on honor 8 pro?
Any suggestions??
Life_sux said:
Is honor 8 pro capable of playing X265 10bit 1080p hevc video?
I've tried samples from jelly fish with stock player, mx player n vlc. None works. Tested the same on friend's op3t phone n it played smoothly with stock player. Even X265 10bit 120mbps 4k video was played without lag on op3t. But this honor 8 pro cant even play 5mbps X265 10bit video?
So is this hardware issue on honor 8 pro?
Any suggestions??
Click to expand...
Click to collapse
Yes. It's absolutely capable. I just tried. Make sure you're using the latest vlc 3.0.0
Sent from my DUK-L09 using Tapatalk
Yes i m using vlc 3.0 but no help. Any settings to change? Attached is the screen grab. It plays for few secs and then hangs.
https://youtu.be/gvWLlUT0jMs
Pls can anyone suggest what would be the prob??
Life_sux said:
Yes i m using vlc 3.0 but no help. Any settings to change? Attached is the screen grab. It plays for few secs and then hangs.
https://youtu.be/gvWLlUT0jMs
Click to expand...
Click to collapse
I really have no idea.
Try turning the hardware acceleration to Full in Vlc.
Are you on EMUI8?
Sent from my DUK-L09 using Tapatalk
Hardware acceleration is to full and m still on emui 5.1, waiting for ota update.
If its of any help, attached is the screen grab from stock player.
Playback is smooth but with distorted colors.
https://youtu.be/YDyZ4vTSJuM
Life_sux said:
If its of any help, attached is the screen grab from stock player.
Playback is smooth but with distorted colors.
https://youtu.be/YDyZ4vTSJuM
Click to expand...
Click to collapse
I too had this problem on EMUI 5.1
Wait for the update. It may solve the problem because I didn't encounter this problem on EMUI 8.
Sent from my DUK-L09 using Tapatalk
Thanks for your help!! Will update once i get oreo update..
So my phone has been updated to emui 8.0 and phone has been factory reset post update but this issue of non playing X265 10bit videos is still there.
Any advise?
1080p hevc mkv videos cannot be played with inbuilt player (due to colour distortion, though videos are played). With MX player, HW decoder is not supported; video automatically starts playing with SW decoder. With VLC full Hardware decoding is supported without color distortion (but still playback is not that smooth, sometimes even videos got stuck).
Overall video playback on honor 8 pro is poor. So don't expect much.
Lakadbaggha said:
1080p hevc mkv videos cannot be played with inbuilt player (due to colour distortion, though videos are played).
Click to expand...
Click to collapse
correct
Lakadbaggha said:
With MX player, HW decoder is not supported; video automatically starts playing with SW decoder.
Click to expand...
Click to collapse
correct
Lakadbaggha said:
With VLC full Hardware decoding is supported without color distortion (but still playback is not that smooth, sometimes even videos got stuck).
Click to expand...
Click to collapse
correct
M facing same issues that u highlighted above. Earlier in my posts I was told that this device is capable of running hevc 10bit videos so I thought its my device specific issue.
Lakadbaggha said:
Overall video playback on honor 8 pro is poor. So don't expect much.
Click to expand...
Click to collapse
OK, so any solutions to play hevc vdo or should I stick to x264 only?
Life_sux said:
correct
correct
correct
M facing same issues that u highlighted above. Earlier in my posts I was told that this device is capable of running hevc 10bit videos so I thought its my device specific issue.
OK, so any solutions to play hevc vdo or should I stick to x264 only?
Click to expand...
Click to collapse
The chipset is surely capable but I don't know why this happens.
Vlc does play the video but if the video is skipped, it gets stuck on that frame.
Maybe because the kirin chipset isn't widely used and thus, there are optimisation issues with many apps. I get dropped frame rates almost in all games and this baffles me because the chipset is fairly powerful.
I am not buying device with kirin chipset again. Lots of optimization issues with 3rd party apps.
Sent from my DUK-L09 using Tapatalk
K.khiladi said:
The chipset is surely capable but I don't know why this happens.
Vlc does play the video but if the video is skipped, it gets stuck on that frame.
Maybe because the kirin chipset isn't widely used and thus, there are optimisation issues with many apps. I get dropped frame rates almost in all games and this baffles me because the chipset is fairly powerful.
I am not buying device with kirin chipset again. Lots of optimization issues with 3rd party apps.
Sent from my DUK-L09 using Tapatalk
Click to expand...
Click to collapse
it would be really sad. u've contributed a lot to this community. to say this means we won't see you in the honor/ huawei section that often since they usually stick to their own processor.
but yes, it does seem sad that there's really not much optimisation... though for the GPU, it is still MALI, which is also on Exynos.
i can only hope things will be better and Huawei/ honor can really work with more developers.
mydragoon said:
it would be really sad. u've contributed a lot to this community. to say this means we won't see you in the honor/ huawei section that often since they usually stick to their own processor.
but yes, it does seem sad that there's really not much optimisation... though for the GPU, it is still MALI, which is also on Exynos.
i can only hope things will be better and Huawei/ honor can really work with more developers.
Click to expand...
Click to collapse
I can't really say if that first line was sarcasm or not.
This device can't play any game without skipping frame rates. It lags pathetically on playing temple run 2.
There are clearly optimisation issues for 3rd party apps because they have optimised it exceptionally well for their own apps and the whole software. This ruins the overall experience because as the OP stated that a device with SD821 plays 1080p 10 bit x265 videos smoothly while this doesn't.
Exynos devices may not be relying from this same problem because Samsung sells those devices in a lot more number than Kirin devices.
Sent from my DUK-L09 using Tapatalk
K.khiladi said:
I can't really say if that first line was sarcasm or not.
This device can't play any game without skipping frame rates. It lags pathetically on playing temple run 2.
There are clearly optimisation issues for 3rd party apps because they have optimised it exceptionally well for their own apps and the whole software. This ruins the overall experience because as the OP stated that a device with SD821 plays 1080p 10 bit x265 videos smoothly while this doesn't.
Exynos devices may not be relying from this same problem because Samsung sells those devices in a lot more number than Kirin devices.
Sent from my DUK-L09 using Tapatalk
Click to expand...
Click to collapse
why do you think it's sarcasm??
as for Exynos devices... they also use MALI GPU, though it's a diff variant of the chip. still, if they can get it optimised... i guess we can hope it's the same for Huawei/ honor. after all, Huawei/ honor is also one of the top manufacturers in the world right now.
mydragoon said:
why do you think it's sarcasm??
as for Exynos devices... they also use MALI GPU, though it's a diff variant of the chip. still, if they can get it optimised... i guess we can hope it's the same for Huawei/ honor. after all, Huawei/ honor is also one of the top manufacturers in the world right now.
Click to expand...
Click to collapse
I felt it was sarcasm because I don't think I have done anything major for the community here. I am not a dev [emoji12]
I haven't used an Exynos device. So, I am just guessing. Yup, I know they both use the same GPU but with lesser number of cores though. Maybe that's the root cause of this or it's just pure optimisation problems, don't know because reviews didn't show any such issues with this device. I am really confused.
Sent from my DUK-L09 using Tapatalk
K.khiladi said:
I felt it was sarcasm because I don't think I have done anything major for the community here. I am not a dev [emoji12]
I haven't used an Exynos device. So, I am just guessing. Yup, I know they both use the same GPU but with lesser number of cores though. Maybe that's the root cause of this or it's just pure optimisation problems, don't know because reviews didn't show any such issues with this device. I am really confused.
Sent from my DUK-L09 using Tapatalk
Click to expand...
Click to collapse
Yes even i am also confused as reviews shows no such issues but it can be possible that not many ppl really tested these specific vidoes on this device. Hence I posted screen recordings of my phone. Need some more testers to see if I m the unlucky one.
Stock player plays video smoothly but with lot of color distortion. VLC just hangs after 1sec and MX player plays through SW decoder with lot of stuttering. XPlayer from Google play plays video much better but still stutter a lot. Overall you can't play x265 10bit HEVC videos with higher bitrate n framerate and of higher file size on our H8Pro. What a disappointment. I tested the Jellyfish sample video which was around ~33mb and main10
Not only in hevc, x264 video playback also have a bug. The 'blacks' are not shown properly in HW decoding of MX player or inbuilt player or VLCs full Hardware decoding or any app using internal codecs including video playback in YouTube app. There is a permanent 'tint' over video (only video screen) when played in these ways. The tint is absent in SW decoding mode of MX player which means the fault is in internal decoding.
To check this pause a black scene of widescreen video (so that there are top and bottom black bars). The black bars are distinctly visible in inbuilt player (and other playbacks that use internal decoding); But screen is full black (black of screen becomes same as that of bars and so can not be distinguished) when SW decoding of MX player or VLC (No harware acceleration) is used.
Not only blacks become greenish black but all colors become slightly dull compared to actual.
This most probably wasn't before oreo update.
Also there is one more magic to it. I tried to attach screenshot, but the screenshots are clear (tint is absent), even when screen recording is on tint dissapears and reappears as soon as screen recording is turned off.
I had to take shot from another phones camera. Pics in attachment is of same black scene (video paused). Screenshot is completely black while photograph shows how it actually appears (distinct top and bottom stripes).
Eye comfort or display color settings has nothing to do with it.
I already reported this issue to honor customer care but I don't think it would do anything.
Anyways, there is NO way to fully enjoy videos in our honor 8 pro. We have to just accept this. To avoid frustrations: stop downloading x265 video, stop comparing with other phones and simply accept what we have.
I've researched on the web for quite some time on this topic but didn't find anything definitive yet (a clear answer if it works - how to set up, etc.):
some are mentioning that only the right app would be needed to be used (well, no)
a few are mentioning that there is supposed to be an app that toggles between default dac (wcd934x) and quad dac (es9218p)
others are referring to a setting in build.prop (nope, the ROM doesn't have the mechanisms to react to that - and neither do the drivers most likely - or at least we need to make sure that this stuff is included for us)
then there are a few mentioned cases that there's support on lineageOS on board to utilize the es9218*
there's also occurences where it's mentioned that the sound stops working entirely when switching tracks (?!) - so it's still WIP
so at least the kernel needs to be set up that way - but there's probably more to it
*referencing:
https://forum.xda-developers.com/v20/development/dev-cm14-t3509953/page25 [ROM][ALL VARIANTS] LineageOS-14.1 for LG V20 [Weeklys']
https://forum.xda-developers.com/v20/development/kernel-gamma-kernel-us996-ls997-h910-t3788279/page2 [KERNEL][AOSP][AnyKernel][LOS-15.1+EAS] Gamma Kernel for [All Lineage Variants
https://forum.xda-developers.com/v2...fficial-lineageos-15-1-lg-v20-t3775689/page19 [ROM][H910|H918|LS997|US996|VS995|H990*] UNOFFICIAL LineageOS-15.1 for LG V20
https://pastebin.com/uQgyHm3b
further references:
https://forum.xda-developers.com/lg-v30/how-to/v30-quad-dac-root-bybass-fix-t3725854 V30 Quad DAC Root Bybass fix
edit:
For those who only use the quad dac for local playback (music stored on their device; NO Youtube, Streaming, etc. with Quad DAC on LineageOS/AEX/RR for now) - there is an app (for purchase) that activates & uses the quad dac (es9218p)
I've tested it and got the same specific quirk / behavior I got on LG Stock ROM with activated quad dac option.
The app is not cheap (6.99 EUR, >8 USD) - but it's totally worth it, the UI is great, the sound output is awesome (finally quad dac on non-stock !) and it uses a "custom developed USB audio driver"
extreamsd said:
This bypasses the Android audio system completely, meaning that Android's limitations regarding bit resolution and sample rate (16-bit/48kHz) are made irrelevant and high quality audio streams are fed directly to the DAC, making playback up to 32-bit at 384kHz possible (depending on the DAC capabilities) or even DSD.
Click to expand...
Click to collapse
Source: http://www.extreamsd.com/index.php/products/usb-audio-player-pro
GooglePlay link: https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro
zacharias.maladroit said:
Well, it's not fully "solved" - since only locally played content (no videos ! no streaming !),
but at least local content is played through the quad dac (es9218p).
So thank you very much for that hint (and everyone else who kept on mentioning it)
And: YES, the quad dac definitely is being used with USB Audio Player PRO
First I thought that the more punchy sound output could be placebo/imagination (with Xiaomi Piston V2 & the B & O Play Headphones),
but then I plugged in the Xiami Hybrid Pro (these are the only headphones that don't work with the quad dac for me - since they cause a extreme loud hissing/static on the left channel),
and after a few seconds I got the characteristic hissing on the left channel - that means that the es9218p DAC/sound card/AMP is definitely being used
That's the same behavior I got on LG Stock ROM after enabling the quad dac
Click to expand...
Click to collapse
https://forum.xda-developers.com/showpost.php?p=77233521&postcount=209
In theory we would just need to write a HAL or something like that, which interacts with the kernel driver, its already there, just something needs to talk to it.
And some Overlay in the Settings to enable/disable the HAL.
The HAL would be C/++ while the Settings overlay would then be Java .... I could do the later.
SGCMarkus said:
In theory we would just need to write a HAL or something like that, which interacts with the kernel driver, its already there, just something needs to talk to it.
And some Overlay in the Settings to enable/disable the HAL.
The HAL would be C/++ while the Settings overlay would then be Java .... I could do the later.
Click to expand...
Click to collapse
I don't really have the programming skills to do either, but I'll buy you guys a beer if you figure it out. That and the vibration motor issues are the only reason I'm still on a stock ROM.
MaxusValtron said:
I don't really have the programming skills to do either, but I'll buy you guys a beer if you figure it out. That and the vibration motor issues are the only reason I'm still on a stock ROM.
Click to expand...
Click to collapse
Vibration motor issues may be solved. Dev is currently trying user @Krakophyst suggestion to replace vibration motor files with those from V35. Now why that would work better than actual V30 files, don't know. But it worked for the user.
Krakophyst said:
The vibration problem came up, but I think I fixed it by replacing vibration related files in /vendor and its subfolders with LG V35's files and it has been working fine for about three days now.
Click to expand...
Click to collapse
ChazzMatt said:
Vibration motor issues may be solved. Dev is currently trying user suggestion to replace vibration motor files with those from V35. Now why that would work better than actual V30 files, don't know. But it worked for the user.
Click to expand...
Click to collapse
It works, because the V35 files have to work on AOSP (because of treble implementation on the V35), while ours depend heavily on the LG framework (which probably does its own stuff to the vibration services), and arent supposed to ever run on AOSP.
SGCMarkus said:
It works, because the V35 files have to work on AOSP (because of treble implementation on the V35), while ours depend heavily on the LG framework (which probably does its own stuff to the vibration services), and arent supposed to ever run on AOSP.
Click to expand...
Click to collapse
Aha. Then score one for Treble on an LG phone that has some similar features to ours. V35 may never get bootloader unlock and root, but we can cannibalize it for the V30.
SGCMarkus said:
It works, because the V35 files have to work on AOSP (because of treble implementation on the V35), while ours depend heavily on the LG framework (which probably does its own stuff to the vibration services), and arent supposed to ever run on AOSP.
Click to expand...
Click to collapse
Wait!?!? So could volte possibly work with the v35 files???
suzook said:
Wait!?!? So could volte possibly work with the v35 files???
Click to expand...
Click to collapse
IF (a big if) volte works on GSIs (which nobody tried so far from what i know, i only know 1 person with a G7, and he cant use VoLTE, thanks to the carrier), those files are highly device specific (or atleast SoC specific), its very unlikely that those would work for us.
I could try, but dont get your hopes up on that.
SGCMarkus said:
IF (a big if) volte works on GSIs (which nobody tried so far from what i know, i only know 1 person with a G7, and he cant use VoLTE, thanks to the carrier), those files are highly device specific (or atleast SoC specific), its very unlikely that those would work for us.
I could try, but dont get your hopes up on that.
Click to expand...
Click to collapse
One can dream though! Lol. Of you need me to test, let me know. Thanks!
Added: USB Audio Player PRO to the first post
and practical proof/experience that it utilizes the quad dac on non-Stock ROMs (AEX, AOSP Extended as example)
PlayStore Link:
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro
zacharias.maladroit said:
Added: USB Audio Player PRO to the first post
and practical proof/experience that it utilizes the quad dac on non-Stock ROMs (AEX, AOSP Extended as example)
PlayStore Link:
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro
Click to expand...
Click to collapse
I grabbed the app, it had some Network options (notably for Tidal and Google Play Music) I would assume using those options from within the app would use the DAC? Can't test personally as I'm currently using Spotify but would happily switch if I could use the DAC on a streaming service, assuming at least ~80% songs I have on Spotify are available there.
zomgalama said:
I grabbed the app, it had some Network options (notably for Tidal and Google Play Music) I would assume using those options from within the app would use the DAC? Can't test personally as I'm currently using Spotify but would happily switch if I could use the DAC on a streaming service, assuming at least ~80% songs I have on Spotify are available there.
Click to expand...
Click to collapse
Could very well be that it provides or uses hooks to interact with those and I guess it should work (if it works, if it doesn't you can nag the devs to fix it - it's a somewhat "premium" priced app after all, and support is to be expected )
I'm not using any streaming services, sorry - so can't test.
Pretty sure there must be users of Spotify here around so maybe those can give some feedback
Edit: mistyped
Anyways I started a Tidal subscription (hifi student plan). From listening to a couple songs things definitely seem clearer but can't say for sure if it's using the DAC or placebo/better quality audio is the cause.
zacharias.maladroit said:
Could very well be that it provides or uses hooks to interact with those and I guess it should work (if it works, if it doesn't you can nag the devs to fix it - it's a somewhat "premium" priced app after all, and support is to be expected )
I'm not using any streaming services, sorry - so can't test.
Pretty sure there must be users of Spotify here around so maybe those can give some feedback
Click to expand...
Click to collapse
I probably will be switching off Spotify in favor of this; only because the student plan for it exists and I do hear an audible difference with their hifi settings ($19.99/month for hifi plan without a student discount yeeesh).
even using this app on non stock rom can we still get the same high volume output from the stock rom with HIM sound mod?
Sent from my LG-H930 using Tapatalk
chalmizzle said:
Anyone tried the Onkyo HF Player app?
Click to expand...
Click to collapse
just tried it with the Xiaomi Pro HD Hybrid and I get the characteristic strong hissing noise in one of the channels (left channel) - that's the only headphones I get that weird thing with when the quad dac is activated (on stock ROM).
This confirms that the es9218p ("quad dac") also works with Onkyo HF Player on non-Stock :good:
So obviously these applications HF player and USB audio pro player have some line of code that is triggering the quad DAC to be utilized. Correct?
u4icpain said:
So obviously these applications HF player and USB audio pro player have some line of code that is triggering the quad DAC to be utilized. Correct?
Click to expand...
Click to collapse
And one also works with streaming media.
zacharias.maladroit said:
Added: USB Audio Player PRO to the first post
and practical proof/experience that it utilizes the quad dac on non-Stock ROMs (AEX, AOSP Extended as example)
PlayStore Link:
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro
Click to expand...
Click to collapse
Would you still need to use higher ohm headphones to enable the quad DAC , or will this (USB Player Pro) allow any headphones to work with it?
I've got 4 sets of IEMs that I love, and would hate to have to start all over again buying new ones.
christoophat said:
Would you still need to use higher ohm headphones to enable the quad DAC , or will this (USB Player Pro) allow any headphones to work with it?
I've got 4 sets of IEMs that I love, and would hate to have to start all over again buying new ones.
Click to expand...
Click to collapse
Nope, I'm using the quad/dedicated DAC with "normal", low ohm/impedance headphones myself,
the only "difference" is that there isn't much noticeable difference compared to the default (qualcomm) audio DAC
So you'll be fine,
you can choose to get yourself higher ohm headphones in the future (after careful evaluation, of course) take your time to choose the ones that best fit your hearing preferences (sound response, etc.)
Any updates on getting the dac to work with non stock roms?
Tested on the lousy zenfone 3 zoom (stock 3.5mm audio sucks inspite of DAC chip because of the poor engine optimization) and it worked like a champ but i believe other devices with SN 625 may benefit from it and they are A LOT, (use 709 build ONLY) other builds won't work as good, i tested them all.
Please do make a feedback on which other device this worked.
Snapdragon 845 devices (e.g. Sony XZ2) – improved Hi-Res Output detection
Sony XZ/XZ1 – improved Hi-Res Output detection
Lenovo X3 – reenabled 24bits
OnePlus (1st edition) – disabled DVC for Hi-Res output due to forced speaker playback
added new per-output option – No Duck – for cases when notification causes issues. Activated by default for Hi-Res output for some Snapdragon 625 devices (Asus Zenfone 3)
HTCs @ 7.0 – improved Hi-Res Output stability
Nexus 6P – fixed notification coloring
Enjoy Hi-Res music all.
Direct download, use poweramp unlocker to activate it.
sam.fisher190 said:
Tested on the lousy zenfone 3 zoom (stock 3.5mm audio sucks inspite of DAC chip because of the poor engine optimization) and it worked like a champ but i believe other devices with SN 625 may benefit from it and they are A LOT, (use 709 build ONLY) other builds won't work as good, i tested them all.
Please do make a feedback on which other device this worked.
Snapdragon 845 devices (e.g. Sony XZ2) – improved Hi-Res Output detection
Sony XZ/XZ1 – improved Hi-Res Output detection
Lenovo X3 – reenabled 24bits
OnePlus (1st edition) – disabled DVC for Hi-Res output due to forced speaker playback
added new per-output option – No Duck – for cases when notification causes issues. Activated by default for Hi-Res output for some Snapdragon 625 devices (Asus Zenfone 3)
HTCs @ 7.0 – improved Hi-Res Output stability
Nexus 6P – fixed notification coloring
Enjoy Hi-Res music all.
link for pros:
<Mod edit>
APK for noobs i'll upload it when the server wakes up
Click to expand...
Click to collapse
Can't see any difference on the audio on Poweramp with this option set for active. The audio quality really sucks on this device.
Mrkblo said:
Can't see any difference on the audio on Poweramp with this option set for active. The audio quality really sucks on this device.
Click to expand...
Click to collapse
Did you toggle the 'Wired headset/AUX" ? and was your test with headphones or via the loud speaker? and what your headphones are?
This release 709 worked for me gloriously! the only problem that it's not free and needs some work that you can find on youtube or i would post a fellow up about the odds of activating it but i just needed a conformation that it at least made a difference by utilizing the DAC chip on board!!
sam.fisher190 said:
Did you toggle the 'Wired headset/AUX" ? and was your test with headphones or via the loud speaker? and what your headphones are?
This release 709 worked for me gloriously! the only problem that it's not free and needs some work that you can find on youtube or i would post a fellow up about the odds of activating it but i just needed a conformation that it at least made a difference by utilizing the DAC chip on board!!
Click to expand...
Click to collapse
I've downloaded the apk you uploaded and followed the screenshots. It made zero difference to the sound quality. Poweramp DVC is great on other devices, but on my zenfone it sucks, the audio is distorted, the only way to tolerate the audio quality is by disabling it. Best player I could find so far for my zenfone is Phonograph.
Mrkblo said:
I've downloaded the apk you uploaded and followed the screenshots. It made zero difference to the sound quality. Poweramp DVC is great on other devices, but on my zenfone it sucks, the audio is distorted, the only way to tolerate the audio quality is by disabling it. Best player I could find so far for my zenfone is Phonograph.
Click to expand...
Click to collapse
The zenfone 3 zoom have an amazing sound quality and believe me the bass is insane via a good headphones, you just need to find a solution to make use of it's potentials, if you want to go throw troubleshooting provide some more information like the exact model and what software build you are currently running... you are right about the distortion i was very upset with the sound quality at the beginning but poweramp made the DAC work properly.
sam.fisher190 said:
The zenfone 3 zoom have an amazing sound quality and believe me the bass is insane via a good headphones, you just need to find a solution to make use of it's potentials, if you want to go throw troubleshooting provide some more information like the exact model and what software build you are currently running... you are right about the distortion i was very upset with the sound quality at the beginning but poweramp made the DAC work properly.
Click to expand...
Click to collapse
I wouldn't say that the sound quality on the zenfone 3 zoom is amazing. This DTS audio thing is terrible and makes sound awful. I've installed an even older version of poweramp and tried your solution, and it made a difference with my JBL T210 (not the best one around, surely). However, using Poweramp with DVC on an old Galaxy S6 that I have laying around is still miles better. Sound quality is my only complaint about this phone, that's why I was hoping for a custom rom for this thing.
Mrkblo said:
I wouldn't say that the sound quality on the zenfone 3 zoom is amazing. This DTS audio thing is terrible and makes sound awful. I've installed an even older version of poweramp and tried your solution, and it made a difference with my JBL T210 (not the best one around, surely). However, using Poweramp with DVC on an old Galaxy S6 that I have laying around is still miles better. Sound quality is my only complaint about this phone, that's why I was hoping for a custom rom for this thing.
Click to expand...
Click to collapse
Yeah you're absolutely right that DTS is a marketing thing and it sucks, you just keep trying on that poweramp 709 build only and try downloading it from APKPURE or somewhere else because the one that i provided was patched with lucky patcher and i hoped it would work with a non-rooted device to skip the activation process but apparently that is not the case, after i reflashed the phone and got rid of the root access i had to install poweramp unlocker and i have to reinstall the the main app every 2 days because without the root i can't seem to be able to activate it, keep digging, i know what a good DAC sounds like, it's not an HTC native level but it's miles ahead of the stock drivers and even better than viper4android module on magisk.
sam.fisher190 said:
Yeah you're absolutely right that DTS is a marketing thing and it sucks, you just keep trying on that poweramp 709 build only and try downloading it from APKPURE or somewhere else because the one that i provided was patched with lucky patcher and i hoped it would work with a non-rooted device to skip the activation process but apparently that is not the case, after i reflashed the phone and got rid of the root access i had to install poweramp unlocker and i have to reinstall the the main app every 2 days because without the root i can't seem to be able to activate it, keep digging, i know what a good DAC sounds like, it's not an HTC native level but it's miles ahead of the stock drivers and even better than viper4android module on magisk.
Click to expand...
Click to collapse
No worries about that. I've purchased the app years ago. The only thing now is that I can't allow it to update. Thanks for the hint, the sound is clearly better now.
sam.fisher190 said:
...because the one that i provided was patched with lucky patcher and i hoped it would work with a non-rooted device to skip the activation process but apparently that is not the case,...
Click to expand...
Click to collapse
THREAD CLOSED! Download file removed!
XDA Forum Rules (excerpt):
...
6. Do not post or request warez.
If a piece of software requires you to pay to use it, then pay for it. We do not accept warez nor do we permit members to request, post, promote or describe ways in which warez, cracks, serial codes or other means of avoiding payment, can be obtained or used. This is a site of developers, i.e. the sort of people who create such software. When you cheat a software developer, you cheat us as a community.
...
Click to expand...
Click to collapse