sound – Set up keyboard shortcut to rewind audio 1 second?

I’m using Ubuntu 18.04. I’m working with an embedded player on page, and the system has a shortcut Ctrl + / which plays/pauses audio and rewinds 1 second. However, trying to use it on Ubuntu, I found that Ctrl + / is a preset shortcut for Select All.
I tried to disable it, but it’s not in the list of keyboard shortcuts. So the only way I found to disable it is to set up a new shortcut and put /bin/false in command. However, this just makes Ctrl + / not do anything (and when it’s not disabled, it would do both – select all, but also pause/rewind).
So is there a way to disable the Select all separately? Or set up a new shortcut in such a way that it works as I want it to – play/pause + rewind 1 sec? (I have no idea what type of command to put in)
If I set up a Ctrl + / shortcut in sound section, there is play/pause, but it stops and start playing from exactly the same spot, so it takes away the very useful feature of being able to listen back a tiny bit by doing the Ctrl + / once or twice.

film – How can I tell if I’ve broken the rewind button on my AE-1?

I recently bought a canon AE-1. After finishing my first roll of film I went unload it and forgot to press the rewind button on the bottom before winding the rewind crank. I know… I should’ve reread an article before doing so, I really was not thinking. I ruined the film, not shockingly. But now I’m worried that by forcing it that I’ve ruined the gears in the camera. If anyone could help either ease my worries or confirm my beliefs, it would be greatly appreciated.

macos – Can’t rewind WWDC 2021 on youtube livestream nor on youtube

macos – Can’t rewind WWDC 2021 on youtube livestream nor on youtube – Ask Different

olympus – Did i accidentally rewind my film?

I am a complete newbie to film cameras and I’m experimenting with my dad’s old Olympus Accura zoom xb700.

I put the film in and the S moved and everything, then i took a picture and it showed “1” instead of S and thought great, i did it!
Then, I do not know what the hell I did, I think i fiddled with the rewind button on accident and now the camera won’t turn on and it says “S” again instead of 1.

I opened the back of the camera (which I’ve just learned was a very big mistake) and the film is still laid out, it didn’t go back into the little canister.

Can someone please help me

pentax – What happens if I press the film rewind button early?

I don’t know about this particular model, but in all my film cameras advancing the film (by pulling the film advance lever) resets the film release lock. Depress shutter with cap on, then advance again. You should see the winder turn, indicating the film is advancing. That should be enough to keep you shooting. (I’m assuming from your post, that you don’t have a motorized drive). You won’t lose the last frame provided you have not rewound the film at all.

EDIT: Corrected as per comment below (whuber)

unity – Worker threads are not being utilized in Time rewind system, is this job system really multi-threaded?

I am trying to make a simple time rewind mechanic. It’s working but it becomes slower as number of game objects increases. I decided to give Job System a shot. My idea is to interpolate between positions and rotations for N game objects in parallel. It is certainly running faster than single thread execution.

However, when I see the profiler, the worker threads are sitting idle.

Here’s the screenshot:

enter image description here

And here’s the IJob code:

using System;
using System.Collections.Generic;

(BurstCompile)
struct RewindJob : IJob
{
    public int RewindableIndex;
    (ReadOnly)
    public NativeArray<Vector3> positions;
   
    public NativeArray<Vector3> finalPositions;
    public float currentTime;

    public void Execute()
    {
       //rewind code for interpolating b/w positions
    }
}

and this is how I schedule RewindJob for each entity like this in main thread:

NativeArray<Vector3> finalPositions = new NativeArray<Vector3>(m_Objects.Count, Allocator.TempJob);

for (int i = 0; i < m_Objects.Count; i++)
{
    NativeArray<Vector3> positions = new NativeArray<Vector3>(count, Allocator.TempJob); ;

    TimeRewindable rewindable = m_Objects(i);

    for(int yo = 0; yo < count; yo++)
    {
        positions(yo) = rewindable.m_Transforms(yo).position;
    }

    RewindJob rewindJob = new RewindJob();
    rewindJob.finalPositions = finalPositions;
    rewindJob.positions = positions;
    rewindJob.RewindableIndex = i;

    JobHandle handle = rewindJob.Schedule() ;
    handle.Complete();
    positions.Dispose();
}

for(int i = 0; i < m_Objects.Count; i++)
{
    m_Objects(i).transform.position = finalPositions(i);
    m_Objects(i).transform.rotation = finalRotations(i);
}

finalPositions.Dispose();
finalRotations.Dispose();

What I can understand is it’s not real multi-threading but context switching. Can anyone just explain a little bit what’s happening? Thanks.

35mm – The film in my film camera won’t rewind. 31 frame flashes intermittently

I’m new to film photography. I recently tried to use the old film camera I had lying around the house, a Kodak S1100 Xl. I shot 31 pictures but couldn’t proceed to shoot more as the LCD display showed the 31 frame flashing intermittently and it wouldn’t let me shoot more. I bought a new battery and tried to shoot more pictures/rewind the film but it won’t work. I read the manual and found out that there’s a manual way to rewind the film, a small “R” button, but that that didn’t work either. I figured the film wasn’t loaded correctly in the first place and that’s why I lost those 5 pictures. Now my problem is that I can’t rewind the film that is supposed to rewind itself automatically after the last shot. I have to add that the number 31 stops flashing when I press the manual rewind button but won’t count down from it to release the film.
Any help?
Should I take the film out in a dark room at night and rewind it myself?

minolta – How do I avoid losing images when my camera won’t rewind the exposed film?

  • Check your camera’s Owners Manual, User’s Manual, or Instruction Manual to see if there are any directions for this situation. Often they will be found in the “troubleshooting” section. If you don’t have a manual for your camera, you can usually find one online by googling your camera’s model name followed by the word manual. If there are instructions in the Manual, follow them. If there are not, proceed below.
  • Shut yourself into a totally dark room with absolutely no light in it. None. Zero. Zilch. This means a totally enclosed space with no windows or doors that aren’t sealed properly to eliminate all light from outside being allowed in. What may seem like a “totally dark” room to you when you first shut the door might be revealed to be otherwise once your vision has acclimated itself to the dark environment. The film in your camera needs no such acclimation time and will be fogged if exposed to any amount of light.¹
  • Open and close the camera’s back. If there is any light at all present, your film will be fogged! This might reset the camera’s counting mechanism. You need to be in a totally dark room with absolutely no light in it. None. Zero. Zilch. If this doesn’t do the trick, proceed below.
  • Most film cameras with an automatic film winder have a manual release mechanism somewhere. Typically it is a very small, recessed button on the bottom of the camera body. Press the button to release the tension on the takeup spool inside the camera.
  • Open the back of the camera. If there is any light at all present, your film will be fogged! You need to be in a totally dark room with absolutely no light in it. None. Zero. Zilch.
  • Gently remove the film cassette from the camera and wind the film into the cassette. The end with the smaller cylinder sticking up out of the film cassette should be turned counter-clockwise. You will probably need to turn it several times to take up any slack before the film will begin to move back into the film cassette. If you let go of the little button, the film inside the cassette may loosen up and you will need to take up the slack again. If there is any light at all present, your film will be fogged! You need to be in a totally dark room with absolutely no light in it. None. Zero. Zilch.
  • If the film has been properly released using the camera’s manual release button, it should roll off the takeup spool in the camera fairly easily. If there is any light at all present, your film will be fogged! You need to be in a totally dark room with absolutely no light in it. None. Zero. Zilch.
  • If you need to handle the film strip itself, try to do so touching only the edges of the back of the film (the side that is away from the camera’s shutter and light box as it runs through the camera). If there is any light at all present, your film will be fogged! You need to be in a totally dark room with absolutely no light in it. None. Zero. Zilch. Once the film has been developed you can clean the fingerprints off without damaging the image captured by the emulsion side of the film.
  • Wind the film completely into the cassette. If there is any light at all present, your film will be fogged! If you wish, you can leave a bit of the leader sticking out. Many people prefer not to leave any leader sticking out as this might cause them to later mistake the roll in question for an unexposed roll and shoot it again. You need to be in a totally dark room with absolutely no light in it. None. Zero. Zilch.
  • Once the film is rolled safely into the casette, you can turn the lights on or open the door to your totally dark room.

¹ There are some types of B&W film that are not sensitive to the far end of the visible spectrum in the near infrared range. For these, a very low power near infrared ‘safe light’ may be used for limited amounts of time. For undeveloped color film and most types of panchromatic B&W film, there is no such thing as a ‘safe light’ that will not fog your film.

repair – remove the rewind button

You could use a lens spanner wrench. It may be difficult to find one that accommodates such a small diameter, though. Personally I’d try the two pins method you suggest first – not much force should be needed, so probability of damage is low if you’re careful. Maybe you could fashion a tool out of a paperclip? Another trick that sometimes works with similar buttons is to apply friction as you turn, using for example a piece of rubber between the button and your thumb.

(Are you sure though that the bottom plate is held back by this button and not by the battery cover?)

How to rewind video playback in Instagram

Navigate your desktop browser to:

Click on the middle of the video.

It starts playing.

Fine.

But then decide you want to position the playback to some part of the video.

Well, I could not do that.

So why.

Why did they not provide playback controls, such as provided by Vimeo and Youtube.

Am I missing something obvious?

By the way, “just wait for it to replay” is not the answer I’m looking for.

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