Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Video Encoding > MPEG-4 AVC / H.264

Reply
 
Thread Tools Search this Thread Display Modes
Old 30th August 2015, 00:44   #1  |  Link
hydra3333
Registered User
 
Join Date: Oct 2009
Location: crow-land
Posts: 540
videolan x264 broken in latest releases ?

Using the binaries over at Videolan:

A bug seems to have appeared commencing with r2579 binary when processing a vanilla mpeg2 .mpg interlaced TV file capture file. The mpeg2 files are from VideoReDo and are the result of "QuickStreamFix" which have then been successfully edited without error by VRD.

A very large number of these error messages appear
Code:
[mpeg2video @ 00000000032504c0] releasing zombie picture
Using the same .mpg input file and x264-x64 to produce an interlaced mpeg4 output,
- r2538 works without the error message
- issue appears in r2579
- issue persists in r2597

I wonder what is
Code:
[mpeg2video @ 00000000032504c0] releasing zombie picture
?

I have reverted to r2538 ... any recommendations ?
hydra3333 is offline   Reply With Quote
Old 30th August 2015, 12:49   #2  |  Link
LoRd_MuldeR
Software Developer
 
LoRd_MuldeR's Avatar
 
Join Date: Jun 2005
Location: Last House on Slunk Street
Posts: 13,235
Well, this error/warning is not from x264 (libx264) itself, but from the built-in FFmpeg (libavcodec) MPEG-2 decoder.

So, apparently, something has changed on the FFmpeg side. Probably whoever is making the "VideoLAN" builds of x264 has updated to a newer (different) FFmpeg version. And newer FFmpeg is now spitting out those warnings.

Is there actually some corruption (decoding error) in the re-encoded file? Otherwise, just ignore those warnings. Quite possible the issue has always existed, but newer FFmpeg has become more verbose/picky.

(BTW: The term "zombie" in programming usually refers to something that it is no longer active/alive, but has not been released from memory yet. Like a "zombie process" is a process that has terminated, but it's PID still exists)
__________________
Go to https://standforukraine.com/ to find legitimate Ukrainian Charities 🇺🇦✊

Last edited by LoRd_MuldeR; 30th August 2015 at 14:23.
LoRd_MuldeR is offline   Reply With Quote
Old 30th August 2015, 14:34   #3  |  Link
hydra3333
Registered User
 
Join Date: Oct 2009
Location: crow-land
Posts: 540
Thanks. In the absence of any info on the videolan forum (their threads on x264 have been deleted) I guess I'll stick with r2538 which doesn't yield the very many messages.

Quote:
"Is there actually some corruption (decoding error) in the re-encoded file?"
Not that I noticed. Although, having said that, a year or so ago I attempted to use ffmpeg h264 encoding to a 576i .mp4 file (source was avisynth) and the results was all "shuddery" after a couple of minutes whereas x264 was perfect. If the newer x264 is like that for the reason you mentioned that'd be disappointing.

Unless you have a suggestion, I guess I'll work out what the equivalent ffmpeg commandline is for this
Code:
"%X264EXEx32%" --thread-input --threads %xthreads% --frames "%FRAMES%" 
--profile high --level 4.1 --preset slow 
--interlaced --tff --no-cabac --crf %CRF% 
--sar 64:45 --colormatrix bt470bg 
-o "%PARtemph264%" "576i-mpeg2.mpg"
the audio is transcoded into mp3 separately and the audio/video muxed using
Code:
"%MP4Boxexe%" -add "%PARtemph264%" -add "%parmp3%":lang=eng -isma -new "%PARmp3mp4%"
so that the moov atom is at the front of the file.
hydra3333 is offline   Reply With Quote
Old 30th August 2015, 14:40   #4  |  Link
LoRd_MuldeR
Software Developer
 
LoRd_MuldeR's Avatar
 
Join Date: Jun 2005
Location: Last House on Slunk Street
Posts: 13,235
Have you tried, for example, the Komisar's build?
http://komisar.gin.by/
__________________
Go to https://standforukraine.com/ to find legitimate Ukrainian Charities 🇺🇦✊
LoRd_MuldeR is offline   Reply With Quote
Old 30th August 2015, 14:42   #5  |  Link
hydra3333
Registered User
 
Join Date: Oct 2009
Location: crow-land
Posts: 540
no I haven't as yet.
hydra3333 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 03:50.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.