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[Bug Report][Resolved] AAC H/W decoder not working since version 1.7.33

I noticed that AAC audio with H/W audio decoder is not working since version 1.7.33 came out (no sound). Previous versions of the player worked with AAC audio. Using the previous codec (1.7.32) with the new player (1.7.33) does not solve the problem, so it's probably a problem with the new player, not with the new codec. Interestingly, with the new player (version 1.7.33) the S/W decoder still works with AAC audio.
I suppose that the AAC audio H/W decoder shouldn't have been affected by the licensing problems with AC3, so it's probably a bug. Am I wrong?

Really strange, most of my videos have aac audio and they are all working fine with lastest version.
Which device are you using?

HTC One X, Android 4.2.2, HTC Sense 5.0.
Audio tracks, according to MX Player properties tab, in all videos with problems, are reported as AAC 32000Hz, Stereo, 96kbps. Again, they work with the S/W decoder but not with the H/W decoder, but before 1.7.33 there was no problem with the H/W decoder.

palbuq said:
HTC One X, Android 4.2.2, HTC Sense 5.0.
Audio tracks, according to MX Player properties tab, in all videos with problems, are reported as AAC 32000Hz, Stereo, 96kbps. Again, they work with the S/W decoder but not with the H/W decoder, but before 1.7.33 there was no problem with the H/W decoder.
Click to expand...
Click to collapse
@palbuq Would you try latest test build?
Also try after checking off Settings > Decoder > HW+ audio on SW video.

Hi, I downloaded and installed the latest test build but I cannot pass through the pop-up screen that asks for the 1.7.34 version of the Tegra 3 codec.

palbuq said:
Hi, I downloaded and installed the latest test build but I cannot pass through the pop-up screen that asks for the 1.7.34 version of the Tegra 3 codec.
Click to expand...
Click to collapse
Then download tegra 3 codec!

josuearisty said:
Then download tegra 3 codec!
Click to expand...
Click to collapse
I did it but it doesn't work. I downloaded the latest codec when redirected to Play and yet the player remains stuck on the pop-up screen because it says that the codec isn't version 1.7.34. Putting the "unofficial" codec (1.7.32) in the "Download" directory also doesn't help: MX Player stays stuck in the pop-up screen and never reaches and "manually" loads older codecs in the SD card. It needs to have first a current codec (1.7.34) in order to load an older one.
But maybe you know where I can find a "1.7.34" codec, I couldn't find it on the developer's site: xxxxx://sites.google.com/site/mxvpen/translation/test-build (replace xxxxx with https).

By the way, I tested both local files and networked files to see if this make a difference (as reported in http://forum.xda-developers.com/apps/mx-player/bug-stream-audio-s-decoder-forced-1-7-34-t2956211) but AAC audio is missing with the audio H/W decoder in both cases.

palbuq said:
By the way, I tested both local files and networked files to see if this make a difference (as reported in http://forum.xda-developers.com/apps/mx-player/bug-stream-audio-s-decoder-forced-1-7-34-t2956211) but AAC audio is missing with the audio H/W decoder in both cases.
Click to expand...
Click to collapse
Yes, you are right. I Checked again and noticed my local file audio codec is AC-3 and not AAC. So the problem is AAC audio codec. My device is nexus 10 running android lollipop.

Problem has been solved with version 1.7.34 without the need of any special setting, thanks for fixing it!

[Feature Request] AC3/DTS Passthrough

Hi !
In France , an ISP called FREE released a new TV BOX which is called the Freebox Mini 4K.
This box runs Android TV .
It has a Broadcom BCM7252 Brahma15 dual-core 1.5Ghz SOC .
Many users have installed Kodi but there have some problems .
Many users use MXPlayer because it is the best player on this Android Box, it is on the AndroidTV Play Store and it has the best video quality. But however KODI works with HDMI and S/PDIF passtrough in AC3 / DTS .
Is it possible to have this option with MxPlayer ?
Can anyone assist in the French community? = D

hi, i have the same problem here:
with the new Sony Android TV, i think that MX Player it's the only way to play videos on that tv (VLC actually sucks), but there's that problem with DTS encoding!
Can mx player developers fix it? :good:

Same here in the US. The default plex player does not support mkv, so I have to use mx player pro. Unfortunately MX player pro does not give me the ability to pass through audio! My receiver can decode DTS, Dolby, etc I just need the player to do audio passthrough!

v 1.7.40 can do this. My device have native support for ac3/dts but with 1.8.1 MX refuse to play ac3. Damn it

Hmm @sumantaadk I assume that when it previously worked, you were using HW, and not HW+ ?
@ everyone else, I assume you have already tried the custom audio codec? MX by itself does not support DTS.

CDB-Man said:
Hmm @sumantaadk I assume that when it previously worked, you were using HW, and not HW+ ?
@ everyone else, I assume you have already tried the custom audio codec? MX by itself does not support DTS.
Click to expand...
Click to collapse
My device only support sw decoder for the video I have. I still can play ac3/dts with previous version but the beta completely remove the possibility. I think developer removed support due to copyright issue. So the current issue is bug or because of copyright?

AC3/DTS was support was removed by default due to copyright, yes; that's one of the main reasons to use the custom codec.
I would have thought that if you use HW and passthru to Android media framework to use the device's native render, that this method would have allowed for DTS...

sumantaadk said:
v 1.7.40 can do this. My device have native support for ac3/dts but with 1.8.1 MX refuse to play ac3. Damn it
Click to expand...
Click to collapse
sumantaadk said:
My device only support sw decoder for the video I have. I still can play ac3/dts with previous version but the beta completely remove the possibility. I think developer removed support due to copyright issue. So the current issue is bug or because of copyright?
Click to expand...
Click to collapse
Beacuse, you are using old custom codecs. If you want to play dts or ac3 you must use the custom codec compiled for the specific version of the player. After the update, if the old codec is found as incompatible it will be automatically unloaded. MX Player 1.8.x needs custom codec version 1.8.0.
Sent from my SM-G900H using Tapatalk

ktsamy said:
Beacuse, you are using old custom codecs. If you want to play dts or ac3 you must use the custom codec compiled for the specific version of the player. After the update, if the old codec is found as incompatible it will be automatically unloaded. MX Player 1.8.x needs custom codec version 1.8.0.
Sent from my SM-G900H using Tapatalk
Click to expand...
Click to collapse
Sorry but I am not using any custom codec. I am using unofficial cm11 which have inbuilt support for ac3/dts. I have clean MX player. Current market version support both ac3/dts.

sumantaadk said:
Sorry but I am not using any custom codec. I am using unofficial cm11 which have inbuilt support for ac3/dts. I have clean MX player. Current market version support both ac3/dts.
Click to expand...
Click to collapse
Can you play videos with dts/ac3 tracks in HW decoder?
Sent from my SM-G900H using Tapatalk
---------- Post added at 06:32 PM ---------- Previous post was at 06:29 PM ----------
Make sure that you have enabled HW+ audio on SW video.
HW+ is broken in 1.8.x on some devices according the beta page. If HW+ is broken in your device, you may not be get the audio.
Sent from my SM-G900H using Tapatalk

ktsamy said:
Can you play videos with dts/ac3 tracks in HW decoder?
Sent from my SM-G900H using Tapatalk
---------- Post added at 06:32 PM ---------- Previous post was at 06:29 PM ----------
Make sure that you have enabled HW+ audio on SW video.
HW+ is broken in 1.8.x on some devices according the beta page. If HW+ is broken in your device, you may not be get the audio.
Sent from my SM-G900H using Tapatalk
Click to expand...
Click to collapse
Yes. MX Play ac3 with hw decoder. I rarely use ac3 content so that's not the big deal for me. All other formats are suppoted with hw+ or sw.

sumantaadk said:
Yes. MX Play ac3 with hw decoder. I rarely use ac3 content so that's not the big deal for me. All other formats are suppoted with hw+ or sw.
Click to expand...
Click to collapse
Can you upload logs..?
Sent from my SM-G900H using Tapatalk

ktsamy said:
Can you upload logs..?
Sent from my SM-G900H using Tapatalk
Click to expand...
Click to collapse
Audio is auto disabled by MX in HW+

Hi, I found this old thread by searching DTS / AC3 Passthrough. So is this feature active in Mx Player pro. I have the 1.7 version with custom codec, and when I play DTS or AC3 file, the audio is automaticly converted by MX player into a 5.1 output, if I select a 5.1 preset on my AVR I can here 5.1 sound, but I would like to have the audio be direct stream to my AVR, and AC3/DTS be converted by my AVR.

virtual_francky said:
Hi, I found this old thread by searching DTS / AC3 Passthrough. So is this feature active in Mx Player pro. I have the 1.7 version with custom codec, and when I play DTS or AC3 file, the audio is automaticly converted by MX player into a 5.1 output, if I select a 5.1 preset on my AVR I can here 5.1 sound, but I would like to have the audio be direct stream to my AVR, and AC3/DTS be converted by my AVR.
Click to expand...
Click to collapse
Use HW decoder without custom codec. It will pass the audio stream to the audio receiver. If your receiver has dts/ac3 decoder, it will play true 5.1 channel (or whatever) present in the audio stream.
Sent from my SM-G900H using Tapatalk

Thank you for your answer it seems to work perfectly with HW, I have to try with HW+ to see if it works too.

virtual_francky said:
Thank you for your answer it seems to work perfectly with HW, I have to try with HW+ to see if it works too.
Click to expand...
Click to collapse
It won't work with HW+ or SW currently. Probably it may be possible in the next version 1.9.0
Sent from my SM-G900H using Tapatalk

Ok, thank you for your help, and lets wait for the next version.

hello, i found the info in this thread very useful thanks. However i wasnt able to quite get everything working so i was hoping someone might confirm i am doing everything right.
i'm using mx player on a nvidia shield to play a stream of h.264 video and Dolby Digital audio, its from my tv server. i want to pass through the audio to my avr which can handle this and looking at posts above i need to use the hw decoder without the custom codec. unfortunately i get no video with the hw decoder. with both the software and hw+ decoders i get video and then with a custom codec i get audio but its downmixed.
is the hd+ decoder with custom codec and downmixed audio the best i can expect for now and is it likely that the 1.9 release mentioned may fix this?
thanks!

[BUG] Impossible to change audio stream

Hello,
I use MX player on MXQ S85 Android TV Box. It is working very well except audio stream changing, even I can click on the other language audio available, it keeps playing sound in first language when movie started...
I have tried with different files, it is always same problem. Other video players doesn't meet this issue. I would like continue use MX player because H265 files are well played.
Thank you

Duponte7878 said:
Hello,
I use MX player on MXQ S85 Android TV Box. It is working very well except audio stream changing, even I can click on the other language audio available, it keeps playing sound in first language when movie started...
I have tried with different files, it is always same problem. Other video players doesn't meet this issue. I would like continue use MX player because H265 files are well played.
Thank you
Click to expand...
Click to collapse
Probably it's due to unsupported audio codec...!
Can you post the mediainfo....?
Sent from my SM-G900H using Tapatalk

ktsamy said:
Probably it's due to unsupported audio codec...!
Can you post the mediainfo....?
Sent from my SM-G900H using Tapatalk
Click to expand...
Click to collapse
Sorry I did not put infos about it... apparently it is due to DTS ... The first stream is played well but it seems dual channel DTS makes troubles:
Video is Codec : H264 - MPEG-4 AVC (part 10) (avc1) Résolution : 1920x1058
Two streams are DTS and the second can't be played is DTS 1509 Kbps
Is it enough info ?
Thanks !

Duponte7878 said:
Sorry I did not put infos about it... apparently it is due to DTS ... The first stream is played well but it seems dual channel DTS makes troubles:
Video is Codec : H264 - MPEG-4 AVC (part 10) (avc1) Résolution : 1920x1058
Two streams are DTS and the second can't be played is DTS 1509 Kbps
Is it enough info ?
Thanks !
Click to expand...
Click to collapse
Probably your device may not have native dts decoder. Kindly use custom codec from the sticky post. When you use custom codecs you can play ac3 or dts tracks even if it's not natively supported by your device. But, the disadvantage is the 5.1 audio will be downmixed to stereo
Sent from my SM-G900H using Tapatalk

ktsamy said:
Probably your device may not have native dts decoder. Kindly use custom codec from the sticky post. When you use custom codecs you can play ac3 or dts tracks even if it's not natively supported by your device. But, the disadvantage is the 5.1 audio will be downmixed to stereo
Sent from my SM-G900H using Tapatalk
Click to expand...
Click to collapse
But the first stream is in DTS and is well played and detected on my speakers system so it is not the device. I have found another video player who can also play both stream in DTS but I would prefer use MXplayer... :silly:

How configure HDMI passthrough on MX Player 1.9.1

Hi,
The release notes says that it Support HDMI passthrough of Audio HD codecs.
But I can not figure out how to configure it.
Thanks,

arindamchoudhury said:
Hi,
The release notes says that it Support HDMI passthrough of Audio HD codecs.
But I can not figure out how to configure it.
Thanks,
Click to expand...
Click to collapse
HDMI pass through is automatically used when the connected device can decode Audio HD codecs like ac3, TrueHD, DTS, etc.

Thirumalai.K said:
HDMI pass through is automatically used when the connected device can decode Audio HD codecs like ac3, TrueHD, DTS, etc.
Click to expand...
Click to collapse
Thanks. Does it also work in HW+ mode?

arindamchoudhury said:
Thanks. Does it also work in HW+ mode?
Click to expand...
Click to collapse
Yes. HDMI Passthrough will be used when the codec is not supported by the MX Player & The same is supported by the device connected through HDMI.
We will improve it further in future to have more controls on the user side.

Thirumalai.K said:
Yes. HDMI Passthrough will be used when the codec is not supported by the MX Player & The same is supported by the device connected through HDMI.
We will improve it further in future to have more controls on the user side.
Click to expand...
Click to collapse
Hi dev. I tried with many 4k with AC3 or DTS streaming.. but i can't get audio work..
I use MX player 1.9.8 pro on my sony 9005 android tv, connected to the ampli by HDMI/ARC cable.
In codec menu, i check any kind of hardware supported codec.. and deselect SW render (only HW+ for video/audio).. but can't hear anything from my speaker..
With other app (for local file streamiing), amplifier automatically detect the audio format and give me on it display the correct format (DTS or DD).
With MX player pro and local/iptv streaming, i can't get it work.
Any idea?
Thank'you!!!

Thirumalai.K said:
Yes. HDMI Passthrough will be used when the codec is not supported by the MX Player & The same is supported by the device connected through HDMI.
We will improve it further in future to have more controls on the user side.
Click to expand...
Click to collapse
Hi
I must say that in 1.9.8 with HW+ there is no 5.1 sound passthrough to my Apmplituner No DD and no DTS.
In HW there is 5.1 passthrough to my Ampli but only DTS 5.1. Amplituner sees Dolby Digital but plays only in 2.0 - I don't know why but there is a problem with DD.
Best regards
I'm using android TV on Philips POS 9002

lukcinek said:
Hi
I must say that in 1.9.8 with HW+ there is no 5.1 sound passthrough to my Apmplituner No DD and no DTS.
In HW there is 5.1 passthrough to my Ampli but only DTS 5.1. Amplituner sees Dolby Digital but plays only in 2.0 - I don't know why but there is a problem with DD.
Best regards
I'm using android TV on Philips POS 9002
Click to expand...
Click to collapse
I'm having the same problem. Has anyone found a solution?

kludi9999 said:
I'm having the same problem. Has anyone found a solution?
Click to expand...
Click to collapse
Unfortunately, no. The only way is attempting to force pass through even if the hardware doesn't report the decoding capability. We will highlight this with our development and will get it prioritized for you.

MXPlayer said:
Unfortunately, no. The only way is attempting to force pass through even if the hardware doesn't report the decoding capability. We will highlight this with our development and will get it prioritized for you.
Click to expand...
Click to collapse
Oh wow, thanks for response! I really appriciate for "prioritizing" this! I looking forward for update then .

Hi
How the work is going? When should except Update with Passthrough on MX Player?

Hdmi passthrough
Hi everybody,
I tried to play movies using default video player of the Android tv and it supports 5.1 Dolby digital passthrough via HDMI ARC. But passthrough using 3rd party video players like MX player, Kodi doesnt seems to decode the 5.1 audio where as PCM works just fine.
My TV: TCL 55 P8
AUDIO System: SONY HT IV300

Hi all,
I have also problem with audio passthrough over HDMI, I try to run Dolby Atmos on my Nvidia Shield, problem what I faced now is when I have video with Dolby Atmos it need HW+ to work but passthrough work only on HW decoder,
Also I cannot select subtitles from mkv video with HW decoder,
MX Player v1.25.8 (AndroidTV)
Device: Nvidia Shield
Audio: Yamaha RX-A2080

On going issue
This has been an on going issue with MX for years, I reported this over 3 years ago and still no solution. Stock reply is they're looking at it!
A simple forced pass through like VLC would do the job for most users with an amp but it's yet to come.
Even the pro version won't allow forced pass through.

Is this issue solved? What im looking for is play dolby digital movie in my android smart tv and get 5.1 sound from my sony e6100 home theater via HDMI ARC. It seems MX cant handle this.

Necro join. MX sends everything as dd2.0 regardless of any settings.

As mentioned above this has been a issue for years. When you mention it on other forums the common response is "Install the codecs" which doesnt work in this situation. A year or so ago I sent mxplayer support a email and got the arrogant response of "Mxplayer app is the ONLY app that properly detects if hdmi-passthrough should be enabled, otherwise very very bad things can happen." Well guess Im damn lucky my receiver hasnt burst into flames when pretty much any other player in existence uses it. Either the developer doesnt have the skill to correct this, or doesnt care. In my search I did find a similiar app that I hadnt heard of that works very well. Vimu Player.

HW+ how Passthrough sound?

I test HW can Passthrough sound , but HW+ can't Passthrough sound...

+1

ken.hsiao said:
I test HW can Passthrough sound , but HW+ can't Passthrough sound...
Click to expand...
Click to collapse
which codec?
If you have a custom codec which supports the codec, it won't be passed through.
can you collect a bug report immediately after playing the video that has issues?
Anyhow, in the next version, we will add an option to prefer audio passthrough over internal decoders.

viedo code is x265
play video use HW no video, audio ok
HW+ video OK, audio not work!

I have the same question (problem). I'm using MX player PRO on my TV POS 9002.
When I use HW Decoder there is DD and DTS audio but 4k HEVC 10 bit HDR 23.976 DTS and DD files are stuttering.
When I use HW + Decoder 4k HEVC 10 bit 23.976 DTS and DD files are smooth but there is no 5.1 audio in my Amplituner (it doesn't see DD and DTS - only Stereo).
MX Player team... Please do something with this. No other program (KODI, SPMC, VLC, ARCHOS) can play this files smoothly. Only MX Player but only in HW + without 5.1 sound
Best regards

Today was a new MX Player update with passthrough option.
I was very happy at the beginning becouse DD started to work but... sound and video stutters every couple of seconds in almost every movie I have (but not in everyone. Some plays good I have passthrough option checked.
There is no DTS passthrough in HW+. Only in HW.
It was so close...
When I uncheck passthrough there is no 5.1 DD sound from Ampli I don't know what to do
Thank You for this but I think it needs a little more testing.
Best regards for all The Team

update MXPLAYER ，The problem is the same
play video use HW no video, audio ok
HW+ video OK, audio not work!

lukcinek said:
Today was a new MX Player update with passthrough option.
I was very happy at the beginning because DD started to work but... sound and video stutters every couple of seconds in almost every movie I have (but not in everyone. Some plays good I have passthrough option checked.
There is no DTS passthrough in HW+. Only in HW.
It was so close...
When I uncheck passthrough there is no 5.1 DD sound from Ampli I don't know what to do
Thank You for this but I think it needs a little more testing.
Best regards for all The Team
Click to expand...
Click to collapse
MX Player checks the capability of HDMI receiver. When you select this option, If the receiver reports that they support DTS or DD, it will automatically use pass-through mode even if there is internal decoder. maybe your amplifier doesn't report the capability of the DTS decoding.
In HW decoder, there is no control on our side. It will automatically pass the audio to HDMI if it's unsupported.
---------- Post added at 11:32 AM ---------- Previous post was at 11:31 AM ----------
ken.hsiao said:
update MXPLAYER ，The problem is the same
play video use HW no video, audio ok
HW+ video OK, audio not work!
Click to expand...
Click to collapse
can you collect a bug report from help menu immediately after reproducing the issue and share here?
it will help us to understand the actual issue.

but use HW audio ok

Thirumalai.K said:
MX Player checks the capability of HDMI receiver. When you select this option, If the receiver reports that they support DTS or DD, it will automatically use pass-through mode even if there is internal decoder. maybe your amplifier doesn't report the capability of the DTS decoding.
In HW decoder, there is no control on our side. It will automatically pass the audio to HDMI if it's unsupported.
---------- Post added at 11:32 AM ---------- Previous post was at 11:31 AM ----------
can you collect a bug report from help menu immediately after reproducing the issue and share here?
it will help us to understand the actual issue.
Click to expand...
Click to collapse
Hi
Thx for answer
When I play some DD movies sometimes there is audio passthrought...sometimes there isn't. I must try couple Times.
When I play in passthrough there is 80% chances that sound and video will be stuttering but...
I have a solution...I play in passthrough mode and when video and audio stutters i change sound to SW mode and for some time I uncheck SW mode. When this doesn't help I try to rewind movie to the beginning couple of Times. It usually starts to workafter couple of times.
This is my way to Play 4K HEVC 10 BIT HDR movies in DD 5.1 on my Philips POS 9002 and Pioneer VSX - 422 Amplituner.
DTS doesn't work in passthrough mode at all
It works in HW mode but video is stuttering. Video is stuttering in every Android TV player: VLC, ARCHOS, KODI, SPMC and integrated Video Player.
Thank You MX Player Devs for a great program thanks to which i can watch movies on my TV.
Best regards

wrong

Any chance getting HW+ to support passthrough audio?

Bump, so many years later and this highly popular video player stays so severely flawed to the bones for people with a proper surround sound system with DTS/Dolby support... Kodi has no issues with it all but somehow MX Player can't seem to solve their issues

2021 update
still no 5.1 sound in mx player in passthrough mode
all the options, codecs and upadates are set, but still "stereo" on reciver display
no DD, no DTS, no 5.1 and no DD Plus either

eugene3 said:
2021 update
still no 5.1 sound in mx player in passthrough mode
all the options, codecs and upadates are set, but still "stereo" on reciver display
no DD, no DTS, no 5.1 and no DD Plus either
Click to expand...
Click to collapse
Yep and I just posted this issue not realizing that this was posted. HW+ is broken with Passthrough and they don’t even mention that it is an issue that they are working on. What a joke.

Scott1174 said:
Yep and I just posted this issue not realizing that this was posted. HW+ is broken with Passthrough and they don’t even mention that it is an issue that they are working on. What a joke.
Click to expand...
Click to collapse
got the mx support answer:
"We regret to inform you that MX Player currently doesn't support audio-passthrough over SPDIF. However, you will be pleased to know that it's a part of our roadmap and will be supported in the future if found viable. Meanwhile, your patience is appreciated"