Support AC3 Passthrough Audio

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What steps will reproduce the problem?
1. Try to cast an MKV with AC3 audio

What is the expected output? What do you see instead?
expected: I can hear the audio
actual: No audio is output

What version of the product are you using? On what operating system?
The latest; Linux

Please provide any additional information below.

The Chromecast has the support for AC3 passthrough, the Netflix app clearly 
takes advantage of it, but the Chrome process running on the Chromecast seems 
incapable of doing so.

A "bug" in my mind, but since it's not listed on the Supported Codecs, I'm 
assuming this is an Enhancements.

Thanks for considering.

Original issue reported on code.google.com by cole.mickens on 7 Mar 2014 at 11:54

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same here, i tried it via BubbleUPNP and the webpage solution. AAC 5.1 works 
fine, but no pass through/sound with AC3 or E-AC3. Chromecast is connected 
directly to A/V Receiver with Dolby Digital support.

Original comment by berner.a...@gmail.com on 17 Oct 2014 at 10:15

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Please add DTS

Original comment by brettwhi...@gmail.com on 28 Oct 2014 at 10:50

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DTS would make Chromecast the most relevant Home-Media-Device ever?!

Original comment by mike.wil...@gmail.com on 2 Nov 2014 at 10:53

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Add DTS please.

Original comment by m4ck...@gmail.com on 18 Nov 2014 at 7:59

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AC3 passthrough not working for me. MKV and MP4 files with AC3 streams casted 
by localcast/bubblepnp give no passthrough steam to a/v receiver.

Original comment by mhagera...@gmail.com on 19 Nov 2014 at 11:21

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AC3 passthrough not working, not when connected directly into TV and amp 
connected with optical and not with a HDMI -> HDMI,optical splitter, where as 
the XBOX 360 passes the DD5.1 signal in both situations.

Original comment by rsvvuu...@gmail.com on 21 Nov 2014 at 8:32

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Please add DTS passthrough. Otherwise the CC is useless in most home cinemas...

Original comment by akjeld...@gmail.com on 4 Dec 2014 at 6:05

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With the latest BubbleUPNP server - 0.9-update1 - the passthrough works! I run 
Bubble UPNP on my phone, the server runs on my PC as a service, and I initiate 
playback from my Synology to Chromecast, no problem.

Original comment by bogo...@gmail.com on 5 Dec 2014 at 8:06

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AC pass-through is not working for me (including html test suggested above). 
Same hdmi input on my receiver works fine for 5.1 AC3 with a DVD player or a 
laptop's hdmi output. I also tested CC passthough option for 5.1 AC3 in the 
recent update of bubleUPNP server and it did not work for me (no audio). This 
is probably the same problem.

Original comment by yboy...@gmail.com on 11 Dec 2014 at 4:25

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No news from Google team about it?  For me just DTS is pending, if works 
chromecast is great device!

Original comment by car.cran...@gmail.com on 17 Dec 2014 at 4:45

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Issue 452 has been merged into this issue.

Original comment by na...@google.com on 18 Dec 2014 at 6:03

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Definitely not fixed in all cases. My TV  happily decodes AC3 from my PVR, XBox 
and Popcorn Hour but not Chromecast

Original comment by GaryWal...@gmail.com on 18 Dec 2014 at 8:47

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A lot of discussion about this over at the plex forum and inconsistencies over 
when it works and when it doesn't. Definitely appears to be the Chromecast at 
fault in it's implementation or it's been too literal in how it was implemented
https://forums.plex.tv/index.php/topic/121442-ac3-pass-through-has-arrived/page-
6

Original comment by GaryWal...@gmail.com on 26 Dec 2014 at 12:51

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I think google doesn't want to license dolby digital or DTS... have you people 
notice that some movies in play store are in 5.1 but they're not dolby digital 
but pcm, I know this because I made the test with a receiver with hdmi input 
and all I got was PCM 5.1...

Original comment by ricardo...@gmail.com on 30 Dec 2014 at 5:38

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Just got it work using the Videostream app (at Play Store)   In sound options, 
i choose AC3 and it works! Clear and good Dolby Digital 5.1 directly from my 
Chromecast, can't believe in it. Others apps such as Popcorn time and Plex: 
still no luck. I will try more later.

Original comment by luizota...@gmail.com on 4 Jan 2015 at 11:06

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Thanks luizato! working for me too now! 
But still.. want an app from where i can do this directaly from my NAS through 
my smatphone..

Original comment by Tiago...@gmail.com on 4 Jan 2015 at 11:31

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It's not working for me.
If have tested lots of Apps and Files....

Do I have to update the Chromecast as well?

Original comment by Johannes...@gmail.com on 7 Jan 2015 at 3:03

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Tried Video stream. Still silence with ac3

Original comment by GaryWal...@gmail.com on 7 Jan 2015 at 11:27

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Give us proper 5.1, we have expensive equipment we cannot use because of dd+, 
give us something we can all use.

Original comment by barefoot...@gmail.com on 14 Jan 2015 at 8:24

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this is not working for me with popcorn time (from opcorntime.io) and 720p 
filethat use 1C3. There is no sound on TV (but I guess TV does not support AC3 
Passthrough)

Why chromecast cant decode AC3 instead ???

Original comment by solstice.dhiver@gmail.com on 17 Jan 2015 at 5:16

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Not working here either. TV doesn't detect a DD input. Works fine with a PS3.

Original comment by sct.nico...@gmail.com on 20 Jan 2015 at 10:25

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I can't belive it's so hard to implementiert pass-through. And i absolutely 
can't believe a company throws a streaming device on the market that is not 
capeable of dealing with the two most important audio Codecs for home cinema. 
The CC is good for presenting pictures, but it is useless for Video streaming.

Original comment by heus...@gmail.com on 21 Jan 2015 at 10:27

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LAN AC3 and DTS support, please.

Original comment by diego.ar...@gmail.com on 4 Feb 2015 at 12:01

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Audio pass-through is now enabled by the Media Player Library for E-AC-3 (EC-3, 
Dolby® Digital Plus™ audio technology).

https://plus.google.com/117916055521642810655/posts/HwjvkqAf9VP

Original comment by lnicho...@google.com on 4 Feb 2015 at 4:41

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Thank you! Helluva birthday present to me :)

Original comment by skipmeis...@gmail.com on 4 Feb 2015 at 4:45

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Latets firmware was installed 26653 and now AC3 Passthrough is broken.

Only the first frame of the movie is shown after a couple of seconds the 
chromecast reboots.

Plz fix :)

Original comment by rsvvuu...@gmail.com on 4 Feb 2015 at 7:18

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Yeah, my Chromecast reboots for both Plex and Localcast for AC3 files. You are 
putting in a ton of effort to support passthough, but limiting it to certain 
codecs. Perhaps you should just make passthrough passthrough and let the 
receiver app either allow and/or restrict which container it is.

Original comment by ch...@cotehome.com on 5 Feb 2015 at 1:35

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I am having the same issue with version 26653, AC3 Passthrough does not work 
anymore. Chromecast freezes and reboots. Please fix this.

Original comment by thean...@gmail.com on 5 Feb 2015 at 7:54

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Yep - add one more broken Chromecast

Original comment by achrisma...@gmail.com on 7 Feb 2015 at 3:44

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Shame on YOU GOOGLE!

it is sufficient only audio formats to support in the videos in it that you are 
selling. Money money money and more money you vultures !

Give US AC3 & DTS GODDAMN!!!!!!! Or go to Hell...

Original comment by Ripcord1...@googlemail.com on 7 Feb 2015 at 5:52

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se BSPlayer FREE in Chrome OS and you got to see your videos (with locks )
1 - Download the Archon for the link 
https://github.com/vladikoff/chromeos-apk/blob/master/archon.md

2 - Go to Google Play : 
https://play.google.com/store/apps/details?id=com.bsplayer.bspandroid.free

3 - Opens this link: 
http://apps.evozi.com/apk-downloader/?id=com.bsplayer.bspandroid.free and paste 
the above address

4 - Download the apk .

5 - Convert utiizando the Twerk in its own chromebook

6 - Add the extensions list.

7 - Smile .

Original comment by hadriel....@gmail.com on 7 Feb 2015 at 9:21

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Same here - Chromecast updated to 26653.

Chromecast reboots immediately after casting movie with AC3 soundtrack

Original comment by Grochol...@gmail.com on 8 Feb 2015 at 3:49

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Same issue here. Chromecast freezes and reboots when trying to pass through an 
AC3 audio track.

Most of my movies contain two audio tracks: An MP3 stereo track and an AC3 
multichannel version.

When the Chromecast is connected to a TV without AC3 capability, the MP3 audio 
track of my movies is automatically selected and the movie plays fine.

When I want to play a movie containing an AC3 audio track on a TV which allows 
AC3 passthrough, I can circumvent the problem with the following procedure:

1. Disconnect CC from TV
2. Reboot CC
3. Start up the movie
4. Plug CC into the TV again (while the movie is playing)
5. Now the movie plays on the TV with the alternative (MP3) audio track.

Original comment by ken.tho...@gmail.com on 20 Feb 2015 at 11:11

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Same here with 26653.

I've been using Videostream and Bubbleupnp fine up until recently. I now get 2 
seconds of video and then the Chromecast reboots after about 10 seconds. If I 
disable AC3 Pass-through in Bubble the video plays. Was working OK before 26653.

Original comment by dlo...@gmail.com on 20 Feb 2015 at 9:28

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Exactly the same here since the latest fw update. With AC3 track video freeze 
and CC reboot. With 2chan AAC track on the same MKV, it works fine. Can't check 
version right now but with the same behaviour I have a feeling I'm on 26653 too.

Original comment by thomas.e...@gmail.com on 20 Feb 2015 at 9:48

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Same crashes with Dolby Digital (AC3) passthrough. 

Original comment by rolando....@mymdc.net on 25 Feb 2015 at 4:08

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Same crashes with Dolby Digital (AC3) passthrough...

Original comment by jchecava...@gmail.com on 26 Feb 2015 at 4:34

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Same crashes with Dolby Digital (AC3) passthrough......

Original comment by lahrjoc...@googlemail.com on 28 Feb 2015 at 9:19

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Still no new update, crashes with Dolby Digital (AC3) passthrough......

Original comment by maurice....@gmail.com on 6 Mar 2015 at 11:16

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Pre 26653 update, Plex via Chromecast on either Nexus 7/Chrome browser on PC/My 
Android phone all worked with AC3 and my AVR receiver displayed the correct 
audio format which is Dolby Digital. 

Post 26653 update, any AC3 materials using Chromecast failed. Screen diplayed 
the content for 1 second and Chromecast shits itself. : (

Please provide update to remedy the problem.

Original comment by shing...@gmail.com on 8 Mar 2015 at 4:40

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Status = fixed - Surely some mistake - it has been broken since 26653  - it 
worked briefly - can someone log a new bug?

Original comment by achrisma...@gmail.com on 15 Mar 2015 at 9:07

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Still NOT getting sound through.... Any feedback from Google pls?!? 

Original comment by Skaarup....@gmail.com on 15 Mar 2015 at 10:26

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What the hell is going on with this? I'm having the exact same issue since 
26653 too. Casting with mkv and ac3 now crashes. No comment, no fix no 
explanation to reduced functionality? Does Google actually give a sh*t about 
it's customers and the people who PAY to use their products? 

Original comment by tthfl...@gmail.com on 20 Apr 2015 at 9:46

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LoL, Chalk up another reason I am glad I do my research before buying things.  
If you need AC3 / DTS passthru just grab yourself a Tronsmart or other Android 
Stick that has it.  Yeah it may run you bout $50 - 70 USD, but much better than 
a $35 useless player.  To think they could just add AC3/DTS passthru on a whim 
and not need to pay any extra and allow the receiver/TV do the decoding, but no 
that would mean they would have to give raw access to an audio stream on their 
devices.  Google is too big a fan of sandboxing to do that.

Remember everyone you can vote with your wallet and especially in the Android 
arena Google will still make some money off whatever you buy, but don't give 
them anymore than is neccesary until they maybe remember customer support.  
They could prolly find some way to allow raw streams within their sandboxing 
architecture, but until they have a finiancial reason to do so you are going to 
be waiting a  L  O  N  G  T  I      M    E

Original comment by MillerMi...@gmail.com on 11 May 2015 at 2:32

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The latest firmware version 31432 on gen 1 of Chromecast appears to have 
re-mediated the Dolby Digtial passthru crashing issue. See Chromecast issue 
number 510.

https://code.google.com/p/google-cast-sdk/issues/detail?can=2&start=0&num=100&q=
&colspec=ID%20Type%20Status%20Priority%20Milestone%20Owner%20Summary&groupby=&so
rt=&id=510

Original comment by shing...@gmail.com on 18 May 2015 at 8:42

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I played up the 5.1 audio tests available on youtube. results only PCM 2.0 on 
my LG home theater. Some people say that Chromecast sends DD+ to their receiver 

Original comment by anders.l...@gmail.com on 1 Jun 2015 at 4:26

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Developers can now query the Chromecast for support of AC-3 and E-AC-3 as 
described in https://developers.google.com/cast/docs/media.

Original comment by jonathan...@google.com on 19 Jun 2015 at 12:24

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Many of us have expensive 5.1 DTS sound systems that just can't be thrown away. 
Please add DTS support for environment sake (assuming if we do throw away these 
perfectly working sound systems).

Original comment by jho...@gmail.com on 30 Sep 2015 at 8:12