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mauricev

macrumors member
Original poster
Oct 10, 2002
41
4
Earth
Sonoma breaks MPEG video playback in QuickTime player. Audio plays back but is accompanied by eerie sound effects.

Embedded MPEG videos in Microsoft PowerPoint are similarly affected.
 
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mauricev

macrumors member
Original poster
Oct 10, 2002
41
4
Earth
The movie inspector in QuickTime player under Monterey says
Video format: MPEG-1 Video
Audio format: MPEG Layer 2, 32000 Hz
 

mauricev

macrumors member
Original poster
Oct 10, 2002
41
4
Earth
I have a video with MPEG Layer 2, MPEG-2 Video and the whole window in quicktime is misbehaving, at least on my Parallels VM running Sonoma. Haven't tested this one on the physical machine.
 

Nermal

Moderator
Staff member
Dec 7, 2002
20,711
4,161
New Zealand
Yep, I can confirm that an MPEG-1 video that used to work is now exhibiting the same issue (no video, weird sound).
 

bogdanw

macrumors 603
Mar 10, 2009
5,747
2,770
I couldn't find a sample, so I made this one mpeg1video_mp2audio.mpeg
I doesn’t work in QuickTime in Monterey 12.7 (21G816) either. It works in IINA and VLC.
Stream #0:0[0x1e0]: Video: mpeg1video, yuv420p(tv), 480x270 [SAR 1:1 DAR 16:9], 104857 kb/s, 25 fps, 25 tbr, 90k tbn
Stream #0:1[0x1c0]: Audio: mp2, 44100 Hz, stereo, s16p, 384 kb/s
Edited to add link to file https://filetransfer.io/data-package/N6B25aip#link
 

mauricev

macrumors member
Original poster
Oct 10, 2002
41
4
Earth
Do you think there is any way to get videos already present in Powerpoint presentations to play correctly without having to re-encode and reload each video?
 

Earl Urley

macrumors 6502a
Nov 10, 2014
792
438
You can get sample MPEG files for testing here:


So far, I can confirm QuickTime Player in Sonoma (Beta 3, RC) sharts in its pants as described above with MPEG-1 files on both Apple Silicon and Intel.

Oddly enough, MPEG-2 files (.m2V) seem to play back just fine..

VLC, Movist, IINA have no problems with them in playback on Sonoma.

PowerPoint uses macOS system frameworks to play video so it'll have to be fixed at the OS level, hopefully there's a bug report in on this matter.
 
Last edited:
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MBAir2010

macrumors 603
May 30, 2018
6,433
5,923
there
some Benny hill videos run perfect on quick time using a Monterey MacBook Pro '12
while they stutter at first on a MacBook Air Sonoma m1.
while The last terminator movie worked great on both Macbooks.

Sonoma does not like olde mp4 videos I guess?
 

Earl Urley

macrumors 6502a
Nov 10, 2014
792
438
One more thing.. h.265 encoded files will not play in Sonoma's QuickTime Player either.

h.264 seems to be fine, but HEVC files are out..
 
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vanc

macrumors 6502
Nov 21, 2007
484
150
It's not only a Sonoma bug. The same issue exists in Ventura 13.6 as well. It might have been there for a while.

Tested on M2 Air 15 with Sonoma 14.0 and M1 Pro MBP 16 with Ventura 13.6.
 

Earl Urley

macrumors 6502a
Nov 10, 2014
792
438
Good news, mpg files now play in Sonoma 14.1 Final build.

Bad news, if those mpgs have audio, it just doesn't play (no sound) in QT Player.

They play fine in Movist and VLC though.
 

Zejtun

macrumors member
Jun 8, 2015
33
6
Good news, mpg files now play in Sonoma 14.1 Final build.

Bad news, if those mpgs have audio, it just doesn't play (no sound) in QT Player.

They play fine in Movist and VLC though.
Glad it is working for you. Still not working for me after updating to 14.1 in QT. Do you mean that if there is audio the video will not play at all? I tried muting the audio but the video still did not play.
 

bogdanw

macrumors 603
Mar 10, 2009
5,747
2,770
Sonoma is crap obviously
As the same behaviour was reported in Monterey and Ventura, you could say that macOS is :)
It was probably depreciated or affected by a security enhancement a while ago and nobody noticed because very few people use MPEG-1 in 2023.
 

aircanman

macrumors 6502
Feb 2, 2011
396
79
UK
Have the same issue here, didn't seem to happen for me before Sonoma, but it has broken all the old Mpeg 1 videos in my Photos library, what is also weird is I can't search for the files anymore either, I can export them and play with VLC but that is not the point. They need to fix this!
 
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kryptticAZ

macrumors 6502a
Feb 26, 2007
818
1,104
Phoenix, AZ
I'm having the same issue. MPEG files that played fine in Ventura will now only play the video portion without the audio after updating to 14.1. I had to use Handbrake to re-encode all the videos embedded into my Keynote presentations.
 
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Zejtun

macrumors member
Jun 8, 2015
33
6
I'm having the same issue. MPEG files that played fine in Ventura will now only play the video portion without the audio after updating to 14.1. I had to use Handbrake to re-encode all the videos embedded into my Keynote presentations.
They fixed QT in Sonoma 14.2, now it plays mpg video.
Thank you Apple
 
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