Ticket #3152

[fishstyc]

I just wanted to let you know that I am really hoping for a rapid solution for Ticket #3152, that is about VLC not playing the beginning of any file, video, or audio. A very annoying bug.

I can't use a previous version of LibVLC to resolve this (1.1.3 or so), because it contains the same bug...

[Lotesdelere]

It's a work in progress:
http://git.videolan.org/?p=vlc.git;a=co ... fc2af926a0

The end of video was already fixed.
There is still an issue at the beginning (around 30/50 ms sometimes lost).

Patience...

[Jean-Baptiste Kempf]

Testing files and testing 1.2.0 NB would be very welcome.

[fishstyc]

A short file with four clicks, and framenumbers from 0 to 37 I think. You will see that VLC only plays the 2nd and the 3d click, sometimes the last also. The first click is never played.

https://www.wetransfer.com/dl.php?code= ... ff942b1371

[fishstyc]

BTW vlc-1.2.0-git-20101105-0002 did play this file until the end (beginning still not plyed as expected), but when playing the 2nd time crashed with some assertion failure.

[ivoire]

Which assertion ? and which file ?

[fishstyc]

Hello,

I am experiencing another problem which might be related to this ticket, which is why I add it here.

I experienced this using LibVLC, where I implemented a very simple way to loop video's, namely when the video had a status of ended, I would stop and start the mediaplayer in order to repeat the file. When the playing speed was very low, I noticed that it skipped the second frame.

Then I tried to check if this behaviour was the same in VLC player, and since it forgets the playing speed, it was impossible to tell. But, when I added 2 loop points, one at the first frame, and one at the tenth frame or something, I could adjust the playing speed, and I saw the same behaviour.

What I saw was, that after seeking (I thought it would jump to frame 0 but actually it jumped to frame 1, that's the first strange thing, but not what this post is about), it would skip the second frame. So actually it was displaying frames 1, 3, 4, 5, 6, 7, 8 ,9, 10, 1, 3, ...
I would have expected 0, 1, 2, 3, 4, ..., 10, 0, 1, 2, 3, 4, ..., 10

Since I don't know how to post files here, here is the avisynth script I used to generate a very short test-file (same length as the audio I added).

Code: Select all

videolength = 37 videocolor = $0000FF a = directshowsource("click.wav").loop(99) v = BlankClip(width = 80, height = 60, color=videocolor, fps=25, length=videolength).audiodub( a ) v.showframenumber() last.Trim(0,-0) return last

[fishstyc]

And when I try the same thing in today's nightly build I get
2, 3, 4, 5, 6, 7, 8, 9, 9, 2, 3, 4 ...

Different, but still wrong. Don't know if the same thing happens at speed 1.0.