Participating Frequently

Question

Reports of 17.0.0.169 with garbled sound and vid on rtmp streaming w/jwplayer?

Forum|Forum|11 years ago
April 15, 2015
3 replies
2500 views

Hello Adobe,

I run a website that uses live streaming rtmp to the jwplayer6 video player. Starting today, some viewers who downloaded Adobe Flash player 17.0.0.169 are getting very garbled sound and video that speeds up/slows down. This is happening on a number of users on various platforms: Win 7, Win 8.1, Linux and various browsers; Firefox, Safari, Opera, and IE (reported so far). Some folks are reporting it happens only on Firefox and not Chrome. Thoughts? How to proceed? We are telling our users, unfortunately, uninstall the latest version of Flash and rollback.

Frank P.

This topic has been closed for replies.

jonathand38110177

Participant

Yes, I am also seeing the same issues. And it is actually both of these issues and they are related. Again this is only for users using flash version 17.0.0.169.

Issue #1 - Sound for live streaming RTMP video using NellyMoser and using AAC has "chipmunk" type effect when viewing. It becomes virtually unlistenable.

Issue #2 - Playback is sped up for pre-recorded FLV files streaming over RTMP. Both audio and video is sped up.

Both of these issues are causing us extreme issues. Unfortunately they are not cosmetic, and they are ruining the entire experience.

What is the current course of action for fixing these issues? If any more help is required documenting the issue, we are happy to help.

Thank you.

- jonathan

jeromiec83223024

Inspiring

Yes, this was fallout from an urgent security patch. Asking users to move backwards would leave them vulnerable to a known exploit.

We believe that we have a fix already. It will be available for evaluation in next week's beta (http://www.adobe.com/go/flashplayerbeta), and will land in the next public release, which is currently scheduled for mid-May.

All of the reports from the field indicate that 44.1k Nellymoser audio streams are affected. We'd recommend transcoding the audio stream for recorded FLV playback to another codec (AAC, etc), and/or switching to Speex or 22k Nellymoser for Microphone capture (if necessary - I'm pretty sure that this is specific to playback) as a temporary workaround.

laurenceg40784782

Participating Frequently

Hi there,

I've been experiencing garbled and speeded up sound streaming Ustream broadcasts with Chrome and Firefox in Windows 7. I just ran the uninstaller and the problem is persisting-just started happening yesterday with exactly the same symptoms reported in the other posts. I clicked on your link to "restore shipped version" but it didn't take me to a download link.

What to do? Very frustrated. The streams ARE working properly on my Android device.

Thanks,

Laurence

N

Nicolas Dion-Bouchard

Known Participant

I have a related problem: starting with version 17.0.0.169, people cannot play recorded FLV files correctly. The playback goes to fast. The bug is reported in the bugbase: https://bugbase.adobe.com/index.cfm?event=bug&id=3970924. If found that the problem only occurs playing the stream in AS2, not AS3. I don't know if there is any work-around but this is really a big problem. We cannot tell all of our clients to downgrade their Flash Player, especially since it is not a simple action. Please help!!

jeromiec83223024

Inspiring

Hi Frank,

If you must tell people to downgrade, please point them to the Extended Support Release.

It rolls back any feature work, but keeps them up to date on security fixes.

Adobe Flash Player Distribution | Adobe

Can you please provide a link to a video that demonstrates the problem? We'd be happy to take a look.

(If you don't want to post it publicly, you can send me a PM - just click my name)

As a side note, these kinds of bugs tend to be very codec and bitrate specific. You might want to try experimenting with various encoding schemes to see if you can work around this temporarily.

Thanks,

Jeromie

frankp87683233Author

Participating Frequently

Hello Jeromie. The link, use http://www.StreetJelly.com and choose any musician who is performing live. If no one is currently live, let me know and I can arrange to have someone perform.

I tried the Extended Support Release version: Flash Player 13.0.0.281 But it is also causing the same problems. Could there be something in the latest security patch that causes the issues? For more info; we are using Wowza Media Server 3.6.4 to stream the rtmp. Our broadcasters are using Flash as well. Versions depend on whatever the users have locally.

Frank

jeromiec83223024

Inspiring

Cool, I can reproduce this on some configurations. I noticed that I'm having a hard time connecting to the service and getting it to return HTML pages (some page loads are taking upwards of a minute -- they're hanging on external resources --- scorecardresearch, etc.).

I was able to reproduce the garbled audio and incorrect speeds. I'll file a bug on that shortly.

It's going to be a month before our next release, so I want to get you a workaround in the meantime. I *don't* believe that what we changed on the security side would have this kind of fallout (it was codec specific, and not on a codec that you should be using). I also found a number of other JWPlayer demos using RTMP that work fine.

The good news is that you can probably change the encoding settings in Wowza to avoid hitting the issue. It would be useful to know what the configuration for the streams that are served to viewers look like at the moment. I've never run Wowza before (Adobe sells Flash Media Server), so I haven't had a reason to play with it.

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.

Scanning file for viruses.

This file cannot be downloaded