Questions tagged [video-recording]

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Decode frames from mp4 file while new ones are encoded into a it

I wrote a video player (written in C++ and C#) that shows a live video stream and also encodes it into mp4 file at the same time. I want to also be able to playback (seek backward or forward) the ...
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What is the effect used in movie gulliver's travels title cards

I am not a media professional, But kind of mind-blown by the effect used in the Gulliver's travels title cards (in the beginning) Added few screenshots of it, As i couldn't find the right word to ...
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Connecting CCTV coax-based video surveillance cameras to a Synology IP solution

[I hope this is on-topic here as it appears somewhat related questions have been asked before] I have a 4-camera analog CCTV system using coax cable. I'd like to replace my analog DVR (digital video ...
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How can I make a top 10 videos on iMovie? Like does it have a feature on the Storyboards where I can do this?

If it matters I'm trying to do this on iOS would I need resources from other apps to make the video
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one-man-band outdoors interview filming, using gimbal

In the last couple of years, I've been interviewing WW2 veterans living in Israel, as part of a project of mine - whose goal is to allow the last members of the greatest generation to tell their ...
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How to capture camera into computer and set it in the background?

There's this guy on yt that makes really cool videos and I always wondered how does he make that composition of capturing his camera into his computer and having it ...
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2 answers
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What cameras/setup can record 10-12 hours long continuous video in very wide angles in high resolutions without being physically humongous?

My aim : (purpose - long drive activity) to record a 10-12 hour long video (not a time lapse) possibly ultrawide (upwards of 130 degrees or something like a super-view from GoPro) higher resolutions ...
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How to setup Sony A58 for clear movie recording?

I have a Sony A58 camera and 18-55mm lens. I did some recordings with AF (Auto-Focus). The frames are a bit blurry. They are actually clear, but it seems to me like the camera is taking two shots and ...
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Playback failure: DVDRead could not read -1/4 blocks at 0x83dc3

I have 3 video files on my DVD drive as shown in image below https://i.imgur.com/egjbywq.png I am able to copy the first and third VOB files, however when I am copying the second one the copy gets ...
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how to connect a clamp and an arm to my desk as a mount for my sony a7s iii?

I have already got an arm that I've managed to get clamped to my desk. I just bought these components and I wasn't (and am still not) quite sure how they connect. I ended up with the thing depicted in ...
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Which desktop recording software can be used to record also right click popups

Most of desktop recording software which I have tried - like sharex, obs studio - does not record everything - like right mouse click popup windows are missing from recording. At least for external ...
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OBS: cropping without black bars

OBS is awesome because of its many many versatile features. Sadly, at the same time it seems very rough around the edges, making it hard to get even basic things working. I want to capture a portion ...
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How to split a huge video into smaller files automatically in windows?

is there an app that I can use windows that can take a video and divide the file to N number of files? Like for a 1 hour video, I'd like to create 6 videos or 12 then it will automatically determine ...
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Change video codec when capturing video in Android

I trying to write a simple app in Android that captures video and then sends it over the network. Looking at the recorded videos on my device, apparently it uses H264 AVC1 by default. I know my ...
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360video - POV Learning Scenarios

I'm working for an educational facility for social workers and have a project to shoot 2 scenarios, of physical escalation with therapists and patients with cognitive disabilities, in POV. The ...
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How to record video of television/monitor without black banding

I am planning to record video tutorials with a standard high-definition webcam from my computer, but I would like to have the facility to work with a whiteboard with PowerPoint presentation. I do not ...
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ffmpeg get Thread message queue blocking after hours

I'm using ffmpeg to record Xvfb and pulse audio. After 1h 30mins, it stopped and show this error [pulse @ 0x3406240] Thread message queue blocking; consider raising the thread_queue_size option (...
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Increase video recording efficiency on smartphones

I am working on a smartphone app that records a video and uploads it to the cloud. Now I'm trying to find ways to increase the performance and quality of videos. Given sometimes the bandwidth of the ...
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Adapt video recording and playback according to the device

We have a prototype that records video and shares it to other devices to play. How can we customize the video recording and playback experience, considering mobile vs. desktop and the bandwidth ...
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Killed my old laptop. Any recommendations to help extend the life of my M1 Macook Air internal SSD?

I recently killed my old (2012) Macbook Pro's hard drive by doing something I didn't realize was a problem. I attend a LOT of training webinars and Zoom video calls with clients: 5 to 10 webinars and ...
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Can anyone tell explain these UTVideo settings to me?

I am on the lookout for an alternative Lagarith Lossless as some games do not really agree with Lagarith Lossless. I did some digging and learned of UTVideo on the internet but the thing is, UTVideo ...
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Can i use my laptop as an external recorder

Can i record 4k video from a canon mirrorless (r6) directly to my laptop hard drive just like one would do with an Atomos Ninja? I record a lot of singing events where the camera is standing in one ...
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1 answer
143 views

Fixing MDT file from Panasonic camcorder

When Panaconic videocameras are abruptly interrupted while recording, the video is on the SD card as .mdt. It's supposedly a video stream without a header and a footer. How can I convert this to be an ...
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1 vote
1 answer
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How to automatedly synchronize video recording with pre-recorded music track?

When they film music videos ---ones that require the artist to lip sync in cooordination with a pre-recorded song--- do they synchronize the moment that the cameraman hits the record button on the ...
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1 vote
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161 views

VLC doesn't play mp4v video converted with VLC to h264/h265

VLC reports the original video as: Codec: MPEG-4 Video (mp4v) Video resolution: 8192x8192 Frame rate: 7.549296 I am using the Convert / Save option to convert the video using the following profile: ...
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How to convert Fast Mpeg 4v2 (mp4v) with ffmpeg

I have problem with ffmpeg properly recognizing a video encoded with Microsoft Fast Mpeg 4v2 codec. Apparently it's a software codec. VLC plays the video fine. The codec reported by VLC is: Codec: ...
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How can I generate voice as someone elses voice?

I dont know if its possible but I would like to create voice similar to Gandalf from Lord of the rings. Is there some app or program which can help me? I know that I can use google translator but it ...
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1 answer
144 views

Software or method to detect sequences of non-black frames in a long video

I have a large video file (about 6 hours long), it's a record from surveillance camera, the camera itself has no illumination features, though surveiled area has pretty good light which is triggered ...
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Seeking Boroscope capable of focal lengths from 24 to 48 inches

Most boroscopes (tiny mobile cameras) are designed for short focal lengths, like a few inches (think: drain pipe inspection). The boroscopes that claim long focal lengths cite up 16 inches. That's ...
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1 vote
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121 views

Is a TBC required for converting VHS home videos to digital format?

This is a follow-up question to this one. The DigitalFAQ forum, whose members seem to know a lot about this particular topic, say about TBCs: You must have some form of TBC, it's not optional. You ...
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1 vote
1 answer
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How do I improve sharpness of foliage and distant objects during video recording?

Lately I have tried recording some video using my old Canon. While I achieve decent results during macro shots and while filming human beings, I have noticed that foliage and distant objects in wide ...
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2 answers
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video bad resolution it stuck in some frames [closed]

I try to design video that include phone screen recording. the phone recording is good resolution out after effects when i add it to after effects it's stuck in some frames and it seems bad resolution!...
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re; using 2 i-phones simultaneously in adjoining rooms for video input to macbook pro

I would like to 'overlay' two individual video feeds from two i-phones (with individual audio feeds from each person via XLR cable) to an existing video so as to stream both the prerecorded video as ...
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Recorder for 2 HDMI Signals into MP4/MKV with 2 Video Tracks

Is there something like the Atomos Ninja V, but with two HDMI inputs and producing MP4 or MKV files with two video tracks? A combination of multiple devices (mixer, recorder) would also be fine.
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2 answers
4k views

How to record with low file size in OBS

I downloaded OBS to try to record some online lectures with low size. I tried some other software already, but the file sizes and quality were too high. I'm trying to keep the file size as low as ...
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2 answers
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How to create a educational video by only using your voice and some photos

I would like to create some educational videos in which I will use only my voice and some photos/text headlines, notes etc. on my Mac computer. I am aiming at creating videos that are as much as ...
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2 votes
2 answers
198 views

How to put your GPS track in a video?

I am about to start a channel on YouTube. There will be occasions that I will drive while recording my path with an indoor (inside car) camera. I thought that it could be great if I put a tiny square ...
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1 vote
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Recording a lecture, mirroring Ipad to Windows PC

I would like to record a lecture for my maths students. I want to write it on my Ipad (in goodnotes), mirror Ipad on my PC laptop, and use OBS on my PC to combine the image of the Ipad with the input ...
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2 votes
2 answers
85 views

Preview Aspect Ratio on Camera LCD Screen

I am planning on shooting a short film with my DSLR (Nikon D5300). I want the film to be in 2.39:1 (1920x800), but my camera is recording in 16:9 (1920x1080). I wondered if there is any way to ...
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Merge multiple video files using ffmpeg by adding multiple compress options

I would like to merge multiple video files, performing in the same time complex compressing options. How can I do that? The following ffmpeg command resulting this error: Filtergraph 'scale=1280:...
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3 answers
910 views

How to solve audio/video sync issue on my mp4 screenrecording?

I'm relatively new to video editing and struggling to solve a problem whereas the video (i.e my lips) is out of sync with the audio (i.e my voice). The beginning of the video is fine but by the end ...
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1 vote
1 answer
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How do I record video on my computer using a (mirrorless) camera as the video source?

I want to record video on my computer using my Canon M50 as the video source. It's similar to how one might use a webcam instead of the camera integrated into their computer. The only difference is ...
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1 vote
0 answers
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Testing if VCR supports S-Video by image comparison. Is it correct?

When I capture a video from my VCR (a Sharp VC-M401SM) with an S-Video cable connected to a SCART adaptor (like the one shown in this post) I obtain a gray-scale image. One possibility for this is ...
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1 answer
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How do I make video tutorials of someone(s) working through a website on their computer?

The trivial way to solve this problem is just to screen record my computer, but I want it to look professional. I don't want unprescribed mouse movements. I want them to be direct and towards the ...
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Audio is corrupted after joining videos with ffmpeg concat demuxer

I've concat or joined four video files using ffmpeg concat demuxer The video has no problem. But on audio side I am greeted with a bunch of error when I tried re encoding the final video. Here is the ...
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2 votes
2 answers
2k views

Does using an S-Video output via a SCART connector improve the output quality of a VCR?

This answer reports that in order not to lose quality when digitizing VHS one should use an S-Video cable. My VCR is a Sharp VC-M401SM and does not have any S-Video output nor a composite output. ...
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Application specific screen recorder for Android

For windows, using OBS studio, I can record the screen of a particular application. If in between, I open another window, the recorder records only the selected window and not the window on top. But ...
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1 vote
3 answers
57 views

Prime or Zoom for Video (Micro Four Thirds)

I am looking to get a Blackmagic Pocket 4K. I know that you can do the EF conversion, and use Canon EF lenses, but I want to keep the cost down on my initial purchase. I am looking at either getting ...
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1 vote
0 answers
114 views

FFMpeg kmsgrab record pixels in incorrect order

ffmpeg -f kmsgrab -i - -framerate 60 -vf 'hwdownload,format=bgr0' -preset ultrafast out.mkv This is how a video frame should look like This is how it is recorded by ffmpeg https://drive.google.com/...
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2 votes
1 answer
77 views

Why I might get this high noise on Sony a7 III with Zeiss 24/70 f4 lens?

So I've tried to make a short New Year video and noticed, that I got noise at almost every level of ISO over 3000. And it is the kind of noise, that is impossible to work with. Am I getting ...
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