Movie stim errors, crashes etc

Builder
1

OS Win10
PsychoPy version the latest
Standard Standalone? (y/n) yes
What are you trying to achieve?:
In builder I am trying to play a series of brief video clips with a slider below that collects data every frame allowing the ptp to move the slider to reflect confidence levels fluctuating during the clip. This then moves to

What did you try to make it work?:
I had a working version on and offline with different video files, but the researcher needed some changes and had specific videos to use.

  1. clips were .mov and huge so I used vlc to reduce the file size
  2. using an isi preload period
  3. changing to the 32bit vlc
  4. tried all the movie back ends (on vlc it doesn’t like the anchor position in the video stimulus; with moviepy the video is jerky and out of sync; with opencv it works ok for around three of the 8 clips then it craps out on me; and it just doesn’t like avbin at all)
  5. I’ve searched the forum and tried all the recomendations from various threads, and I have googled extensively

What specifically went wrong when you tried that?:
In opencv backend i get
C:\Users\penning\Desktop\ruth\socialcognitiontask_lastrun.py #####
2397.9491 INFO Loaded monitor calibration from [‘2019_11_04 16:39’]
pygame 2.1.0 (SDL 2.0.16, Python 3.8.10)
Hello from the pygame community. https://www.pygame.org/contribute.html
14.3523 WARNING MovieStim2 dropping video frame index: 1
Traceback (most recent call last):
################# Experiment ended with exit code 1 [pid:7316] #################

2

I’ve cleared the cache and ran again (for the millionth time!) and while it got through 5/8 clips it crashes with this
22.5046 WARNING MovieStim2 dropping video frame index: 1
Traceback (most recent call last):
File “C:\Users\penning\Desktop\ruth\socialcognitiontask_lastrun.py”, line 484, in
win.flip()
File “C:\Program Files\PsychoPy\lib\site-packages\psychopy\visual\window.py”, line 1082, in flip
thisStim.draw()
File “C:\Program Files\PsychoPy\lib\site-packages\psychopy\visual\movie2.py”, line 737, in draw
self._updateFrameTexture()
File “C:\Program Files\PsychoPy\lib\site-packages\psychopy\visual\movie2.py”, line 700, in _updateFrameTexture
raise RuntimeError(“Could not load video frame data.”)
RuntimeError: Could not load video frame data.
[000001f0f4208b40] mmdevice audio output error: cannot initialize COM (error 0x80010106)