[xubuntu-users] VLC 3.0.9.2 and .mkv-Files

[Chris Spackman]

On 2020-10-04 19:05, Hans Schneidhofer wrote:
> hi list,
> 
> okay, here I have 2 outputs from different messages:
> one is the output of "Codec-Information"
> and the 2nd is the output of "vlc -v"
> 
> Stream 0
>         Codec:H264-MPEG-4 AVC (part 10)(avc1)
>         Typ:Video
>         Videoresolution:1280x720
>         Buffersize:1280x720
>         Direction:Upside left
> Stream 2
>         Codec:Opus Audio(Opus)
>         Language:English
>         Typ:Audio
>         Channels:Stereo
>         Sampling Rate:48000 Hz
>         Bits per Sample:32
> 
> and here vlc-v:
> [00007fcfe0001150] mkv demux warning: no cues/empty cues found->seek
> won't be precise
> [00007fcfe0c13bd0] main decoder error: buffer deadlock prevented
> [000055f181ff15b0] pulse audio output warning: starting late (-111193
> us)
> [000055f181ff15b0] main audio output warning: playback too late
> (60096): up-sampling
> [00007fcfe0001150] mkv demux warning: EOF
> [00007fcfe0001150] mkv demux warning: cannot get block EOF?

> are these messages something, which tells you anything ?

First, sorry for the long delay. My main computer is in the shop 
(motherboard issues), so my email access is a bit unstructured recently.

Second, did you find a solution to the issues?

Unfortunately, I don't see anything helpful in the messages. The file 
video is h264 mpeg-4, which is common, and the sound is opus - which I 
think is unusual in a mkv file, but should be totally supported (it is 
more common in webm files). So, the vlc should be able to play the file.

I'm not sure if the "cannot get block EOF" (EOF = End Of File, usually) 
error is meaningful. It's possible that there is an error in the 
encoding. Have you tried converting to a different format? Or even just 
re-encoding in the same format? Ffmpeg is good for this, as is 
Handbrake.

-- 
Chris Spackman (he / him)                           chris at osugisakae.com

ESL Coordinator                             The Graham Family of Schools
ESL Instructor                          Columbus State Community College
Japan Exchange and Teaching Program           Wajima, Ishikawa 1995-1998
Linux user since 1998                                 Linux User #137532