Sound Choppy/Skippy on Old MOV Files

[VLC_User_13]

I have just realized that VLC (3.0.17.4) is not playing my old .mov files. Well, it plays video, but sound is choppy and staticy. I can play .mp4 and ,avi files file. It has been awhile since I played these videos, so not noticed it for a long while.

I have seen posts about changing different video outputs, and I have done that. Some options crash the player.

I tried disabling hardware acceleration but not help.

This is a laptop from over ten years ago, so being too powerful is probably not an issue by today's standards. Crawls running Windows 10 Home but it runs.

I tested the .mov files using Windows Media Player, and they worked fine. Which was a relief because I thought years of family stuff were corrupted, along with the backups, and the backups of backups. None of the modified dates were changed, so I did not think it be corruption. Thankfully, and hard to admit, that WMP confirmed my files are fine.

Is there something else I can try?

Thank you.

[Lotesdelere]

Please open Tools -> Messages (set Verbosity to 2) before you start the playback, and then paste the full resulting log here or on Pastebin.com if it's too long.

Also upload a short sample of your original problematic file to Zippyshare.com or to WeTransfer.com and then post the link to the file here.
https://www.zippyshare.com
https://wetransfer.com

If needed cut it with DGsplit and read here about how to do it:
https://forum.videolan.org/viewtopic.ph ... 35#p193335
200 MB max should be enough.

[VLC_User_13]

Thank you for that information.

I uploaded one of the videos (11M) and the requested log.

https://www.mediafire.com/folder/whbw3wzctlwku/vlc

[InTheWings]

conseidered as 16bit audio, plays twice the rate...

[InTheWings]

https://code.videolan.org/videolan/vlc/-/issues/2715

[VLC_User_13]

Wings, thanks for the info, but I am not sure what I can do with the information in that link. I actually only understood half the stuff being discussed on that page. :/

If the sound is 16-bits, and playing faster you say, what can I do when playing those videos normally?

[Lotesdelere]

The audio is 8 bits, mono at 7875 Hz.

Code: Select all

Format : PCM Format settings : Little / Signed Codec ID : sowt Bit rate mode : Constant Bit rate : 64.0 kb/s Channel(s) : 1 channel Channel layout : M Sampling rate : 7 875 Hz Bit depth : 8 bits

Audio has ID1 and video ID2.
Wrong bit depth detected by VLC:

Code: Select all

araw debug: samplerate:7875Hz channels:1 bits/sample:16

But FFplay and MPV are playing it fine.

Code: Select all

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'd:\temp\samples\sample.mov':=0/0 Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2005-12-23T00:27:01.000000Z Duration: 00:00:37.47, start: 0.000000, bitrate: 2357 kb/s Stream #0:0(eng): Audio: pcm_s8 (sowt / 0x74776F73), 7875 Hz, mono, u8, 63 kb/s (default) Metadata: creation_time : 2005-12-23T00:27:01.000000Z handler_name : Apple Sound Media Handler vendor_id : [0][0][0][0] Stream #0:1(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 320x240, 2291 kb/s, 15 fps, 15 tbr, 600 tbn, 1200 tbc (default) Metadata: creation_time : 2005-12-23T00:27:01.000000Z handler_name : Apple Video Media Handler vendor_id : appl encoder : H.264

You should create a new ticket on the VLC Trac with your above report, the link to your sample file and the link to this thread:
https://code.videolan.org/videolan/vlc/-/issues

[VLC_User_13]

Okies, Lote. I will try that, thanks.

[Lotesdelere]

Your ticket is here:
https://code.videolan.org/videolan/vlc/-/issues/27155

But another ticket was created few hours before:
https://code.videolan.org/videolan/vlc/-/issues/27154