H.264 Encoder Issue

Here you can submit bugreports
Post Reply
dwdotco
Posts: 3
Joined: Wed Apr 25, 2018 10:02 pm

H.264 Encoder Issue

Post by dwdotco »

Hi all,

Having some audio issues with the h.264 encoder..

Firstly, for me, the audio layout won't save (I've seen this same issue reported before with a different encoder), selecting a different layout and clicking OK works, then when returning to settings it switches back to 1x2. Saving the workspace and looking at the .ini it seems the actual selection saves, not sure if it uses it though when running tasks which leads me to my second issue.

For me, after encoding in h.264 the audio only plays in the right channel.. this is my main problem at the moment, any help would be greatly appreciated, I'm not sure if this issue is related to the first issue?

Many thanks! :)
admin
Site Admin
Posts: 1658
Joined: Sat Feb 08, 2014 10:39 pm

Re: H.264 Encoder Issue

Post by admin »

Hi dwdotco, thank you for using FFAStrans and welcome to the forum! :-)

I can confirm the bug that cause the "H264"-encoder to be locked on 1x2 and it has been resolved in the upcoming 0.9.1 version.

I have also had other reports about audio only playing on the right channel but I'm not able to reproduce in 0.9.0.4. Is this the version you are running? There used to be an issue with the first channel in the initial 0.9.0 release but it was resolved in the following patches.

-steinar
dwdotco
Posts: 3
Joined: Wed Apr 25, 2018 10:02 pm

Re: H.264 Encoder Issue

Post by dwdotco »

Hey steinar, many thanks for the welcome and fast reply :)

Glad to hear it's a known bug, will keep an eye out for 0.9.1, also - yes, I'm running ffastrans.exe 0.9.0.47 on windows 7.

Cheers!
admin
Site Admin
Posts: 1658
Joined: Sat Feb 08, 2014 10:39 pm

Re: H.264 Encoder Issue

Post by admin »

0.9.0.47 is not the latest. The about should read:

FFAStrans.exe 0.9.0.64
processors.exe 0.9.0.28 (This is the important file)
exe_manager.exe 0.9.0.12
def_runner.exe 0.9.0.8
rest_service.exe 0.9.0.12

Can you please make sure you have applied the latest patch?

-steinar
dwdotco
Posts: 3
Joined: Wed Apr 25, 2018 10:02 pm

Re: H.264 Encoder Issue

Post by dwdotco »

Hey steinar,

All sorted now, it seems I wasn't running the latest version, oops! Many thanks for your help.

P.S there's a typo in the 'resize' dropdown for the 264 encoder, it reads 'stretch and loose aspect' instead of 'lose'.

Thanks again :)
admin
Site Admin
Posts: 1658
Joined: Sat Feb 08, 2014 10:39 pm

Re: H.264 Encoder Issue

Post by admin »

Thanks for your observation! English/US is not my native language som there are certainly some typos here and there.

-steinar
kratt
Posts: 1
Joined: Mon May 21, 2018 3:38 pm

Re: H.264 Encoder Issue

Post by kratt »

Just a note.
Version 0.9.0.17 and H264 encoder.

Input file has 8x mono streams. First 4 have audio contents, rest is empty/silence.
Output file has a nice stereo mix but left channel gets like -10 dB.

The filter for my case is :

Code: Select all

-filter_complex "[0:1]pan=1|c0=c0,alimiter=0.070859:1:0.9:0.1:level=0,aformat=s32:48000:1[a1],[0:2]pan=1|c0=c0,alimiter=1:1:0.9:0.1:level=0,aformat=s32:48000:1[a2],[a1][a2]amerge=2[astr1]" -map "[astr1]"  

-c:a aac -ar 48000 -b:a 256k
Maybe this is intentional because the encoder does not know if it should mix those empty channels or not.
admin
Site Admin
Posts: 1658
Joined: Sat Feb 08, 2014 10:39 pm

Re: H.264 Encoder Issue

Post by admin »

Hi kratt, thank you for using FFAStrans and welcome to the forum! :-)

This issue has been solved long time ago (0.9.0.1 released 23. February) so you need to upgrade ;-)

-steinar
Post Reply