Questions about video editing, streaming, conversion, capturing or video output. Use a more specific tag if possible.

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0
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0answers
14 views

Redirect a video monitor

I don't know a lot about the internet, nor video, but I thought I'd ask here anyway. I have an old Motorola video monitor that is "hard coded" to send all audio and video to the company server, ...
2
votes
1answer
160 views

FFmpeg zoom and pan with video as input

I have searched for all kind of ways how to get the zoompan filter to work on a video, I have not problems on a image: ffmpeg -loop 1 -i thumbnail_56138ba980d73.png -vf ...
2
votes
2answers
24 views

Add TITLE and COMMENT metadata to .MOV video file?

In Windows 7, I load a .MOV video file in VLC Mediaplayer. In VLC, I press CTRL+I to show the Media Information dialog of this file: Media Information dialog I enter a new TITLE and a new COMMENT ...
0
votes
1answer
258 views

I can copy a file from my NAS but not watch it

I have a cheap embedded linux NAS (a Seagate Central.) The device is certainly underpowered, but it's not entirely useless. One thing that bugs me is that I can reliably copy a 300MB AVI file to my ...
0
votes
2answers
50 views

What happens when I display 1080p video on a x720 resolution setting?

This one puzzles me, and I'm looking for a very technical answer. Say I'm on YouTube and I chose 1080p for the video resolution. However, my screen's resolution is 1280x720. This means I'm ...
0
votes
1answer
28 views

ffmpeg: re-encode a video, keeping settings similar

I'm dealing with some mp4 videos that were encoded on mobile phones and are pretty huge. I think ffmpeg can do better. I'm trying to figure out what flags to use to preserve fps, resolution, and ...
1
vote
1answer
13 views

Estimate video size for different resolutions

I am developing a web application for a customer, basically I need to estimate the costs of storing photos/videos on AWS for our user database. I'd like to know the average size (or size range) of 1 ...
0
votes
1answer
19 views

ffmpeg fails to add subtitle to video on mac

I use this command fmpeg -i out.mp4 -i drbraun.ass -map 0 -map 1 -c:v copy -c:s mov_text out1.mp4 and get the output as the following, while the output file has no subtitles in it. I guess it might ...
0
votes
0answers
23 views

Increase buffer Video on FFmpeg

I apply the following command on FFmpeg: ./ffmpeg -re -i 'udp://237.0.0.1:1234?buffer_size=2000000&fifo_size=1000000' -vf scale=720x480 -c:v libx265 -c:a copy -f mpegts ...
0
votes
0answers
25 views

'Invalid pixel format error' when converting from mj2 to ffmpeg

I've been trying to use ffmpeg to convert some mj2 files to mp4, but I can't figure out the correct flags to pass Naively, I tried things like ffmpeg -i vid_in.mj2 vid_out.mp4 but I get errors like ...
0
votes
1answer
22 views

Convert Audio 5.1 to Stereo [closed]

I am having issues playing the MKV video files I download on my friends TV, the TV shows I download have been playing just fine with no issues. The video portion of the files play flawlessly however ...
75
votes
6answers
83k views

Can HandBrake flip/rotate a video?

I'd like to use HandBrake to compress some video that was taken via a camera that was mounted upside down. I found a reference to a command-line rotate option, but I can't find it in the GUI. Am I ...
0
votes
0answers
133 views

ffmpeg rtsp stream recorded no audio on output file

I am tying to record video and audio using openRTSP and ffmpeg. The below command record video but the it doesn't contain audio. openRTSP -D 10 -v -t -c -b 800000 ...
0
votes
1answer
23 views

Slow video playback older iMac

I have an iMac from 2006 with an intel core duo @ 2GHz and a RadeonX1600. Video in VLC or Quicktime play flawlessly without any choppiness, however in the latest Firefox browser, YouTube and pretty ...
2
votes
1answer
341 views

Windows 8 or Nvidia issue: Part of screen fades out to gray

I have this very weird issue that occurs on my machine, and it's easy to reproduce: Method 1: Go to Youtube or another video site play a video the rest of the screen fades out to gray The video ...
1
vote
8answers
5k views

Slow, choppy video playback with nVidia 8600GT

I have an nVidia 8600GT card (made by EVGA) on a machine with Windows Vista (AMD Athlon X2 processors) and four gigs of ram. It runs pretty good, but I have had some slow/choppy/stuterring video ...
0
votes
2answers
44 views

Will Second 2560x1440 monitor slow down my iMac?

I have this iMac: http://www.hoxtonmacs.co.uk/collections/imac-27-inch/products/imac-27-inch-core-i7-3-4ghz-mid-2011 It has 32GB RAM, and I use it to edit videos in Final Cut Pro X and make music ...
0
votes
0answers
29 views

Subtitles in VLC are wrong

I have an .MKV file and the subtitles are incorrect I tried with different encondings as this answer states, but I with no luck. The subtitles are embedded inside the file so I can't open them in ...
0
votes
0answers
34 views

Create timelapse video with frame integration using ffmpeg

I have a real-time 30fps video, and I wish to convert it to a timelapse 30fps video so that each frame of the target video is the result of arithmetical mean of 10 original frames in a linear ...
0
votes
2answers
58 views

My videoplayer is suddenly buffering local videos

Today I was watching Band of Brothers which I have stored locally on my hard drive in 720p. Watching the first two episodes went perfectly as usual, however when viewing the third episode my Kodi ...
0
votes
1answer
126 views

FFMPEG audio out of sync when transcoding (demuxing) from DV

I've been stuck with this problem for months. I have over 50 DV tapes (from and old Sony camcorder) to be converted to a more modern, usable format (most likely H264). I've started off with pulling ...
9
votes
2answers
9k views

What parameters should I be looking at to reduce the size of a .MOV file?

My Canon 60D creates .MOV files when recording video and I've found out that the .MOV container has an H264 video stream and a PCM audio stream. I've used ffmpeg and GSpot to look at some of my ...
1
vote
0answers
20 views

Automatically join or trim many video files

I have two underwater network video cameras on a deep-sea observatory that are tethered to land by a fiber optic cable and stream video data back to shore. I'd like to find a way to automatically cut ...
2
votes
1answer
86 views

A fast way to convert multiple videos sound from AC3 to AAC without converting video

Is there a way to convert alot of video files from AC3 sound to AAC? I don't want to convert video iteself, video is okay, only the sound. I have alot of videos encoded with H.264 or mpeg4(xvid) and ...
1
vote
1answer
58 views

“Proxy” for streaming video

I am investigating playing live streamed video at an event venue, to a large number of Wifi connected devices. Set up would be: Camera -> PC -> cloud streaming server (like Wowza) -> wifi AP -> ...
0
votes
0answers
15 views

Detect missing chunks of video

I (non-illegally) download videos using Frostwire, and I'm not sure if the way the torrent downloads the file causes this or what, but when I open an incompletely downloaded video file (in VLC Media ...
0
votes
0answers
34 views

Better solution to video capture

I'm looking for ideas, then whatever solution will be welcome :) I have an infrastructure that I used 20 EasyCap USB2.0 in 10 different computers to capture video via ffmpeg by ffdshow (2 usb for ...
0
votes
0answers
19 views

ffmpeg: Input Link Top Parameters Do Not Match Second Input Link Bottom Parameters

I'm trying to do a slideshow with transitions as described here: Create video with 5 images with fadeIn/out effect in ffmpeg (crossfade example) But it seems my SAR values are mismatched, so I keep ...
7
votes
2answers
8k views

Why G Does Not Light Up In Network Cable Tester?

I have bought a network cable tester and in the manual it said that all lights from 1-8-G should light up in sequence. However I get only 8 without G, although the cable is in working condition. Here ...
1
vote
3answers
2k views

Scale watermark overlay by video size with ffmpeg

I would like to scale a watermark to 5% of the video width. I need something like that: ffmpeg -i 1.mp4 -i logo.png -filter_complex "[1:v] scale=1_MP4_VIDEO_WIDTH*0.05:-1 [logo1]; [0:v][logo1] ...
0
votes
1answer
56 views

Create a video with 5 images with fade in/out, zoom pan, and slide left/right

I have to create a video with 5 different images 3 sec for each with the following sequence Fade Out Fade In Zoom Slide Left Slide Right I do not know about sliding filter command and also zooming ...
4
votes
3answers
15k views

Extracting “one of every 10 frames” in a video using VLC or FFmpeg

I am trying to extract "exactly 1 frame of every 10" frames of a video (i.e. extract 1 , leave 9 then repeat) for scientific purposes. The video is 105 frames, 3.5 seconds, 29.97fps (h.264, .mov, ...
7
votes
1answer
2k views

FFmpeg - Apply blur over face

I'm trying to blur a portion of a video using FFmpeg (specifically to blur a face). I have been trying to use a combination of timeline editing and the various bluring filters, but I cannot find a ...
0
votes
4answers
56 views

Which program I can edit video (cut some scenes) without increasing the video's size

I have a video: Input.mp4 - length: 29 min 6 sec - size: 120 MB I use Microsoft Movie Maker 2012 (Movie Maker is included in the Windows Essentials 2012 program suite), to cut some boring scenes and ...
0
votes
1answer
83 views

FFmpeg RMTP streaming and simultaneously saving to file

I am using ffmpeg.exe to transcode a video source, in this example below from a file and want to simultaneously stream rmtp and save to file. I can't figure out what am I doing wrong with the "tee ...
0
votes
1answer
49 views

Embedding videos in Evernote notes?

Using the Evernote web clipper, I have the option to clip Youtube video pages. This results in a note with an embedded video thumbnail, which when clicked opens the Youtube page: How can I ...
0
votes
1answer
90 views

Maximum amount of users in a Skype (Free) Group Video chat

A group of users in my office would like to use Skype for some regular meetings when they are out of the office. Is there a hard limit to how many users can be in a group video call with the Basic ...
1
vote
1answer
28 views

How can I make mpv show the duration counter constantly?

I use the mpv video player in Linux. With the keys Shift+P, I can see the duration of the video I am watching. How can I set mpv to show the duration all the time (without the need of pressing ...
0
votes
0answers
66 views

How to install NVIDIA VIDEO CODEC SDK?

I need it for use with FFmpeg to accelerate encoding. I've downloaded nvidia_video_sdk_6.0.1.zip from their website here but there is absolutely no information whatsoever about how to install it on ...
0
votes
0answers
23 views

downloaded videos without end point.Can't scroll through

I have a habit of capturing videos from online streaming sites using IDM and problem is they show duration in mediatab but while playing them in different players they don't show total duration and ...
1
vote
1answer
82 views

How will you get youtube link from the following embed URL

I want to watch this video on YouTube but I found this embedded in a site. Is there a way to retrieve the youtube.com URL from this embedded URL ? <embed src="//www.youtube.com/get_player" ...
0
votes
1answer
178 views

Chrome's high CPU utilization when playing Youtube 1080p@60fps videos (x 3-4 compared to Edge for same codecs) + more dropped frames

When I play full-screen 1080p@60fps Youtube videos in Chrome (with MagicActions extension), my i5-4570T CPU hovers around 35-45%. Playing the same video in Edge takes up only 10% of CPU. Both use the ...
0
votes
0answers
13 views

PSNR-HVS-M - Between-coefficient contrast masking of DCT basis functions

So there doesn't seem to be much material on the internet regarding these PSNR variants. PSNR-HVS: Peak Signal-to-Noise Ratio taking into account Contrast Sensitivity Function (CSF). While I don't ...
0
votes
1answer
89 views

Data Stream encoding not supported yet (FFmpeg)

I have a problem in my project, using FFmpeg. I am trying to use the -map option on the following way. ./ffmpeg -i input.ts -vf "scale=720x480" -map 0:p:59512 -c:v libx264 -preset slow -crf 23 -c:a ...
1
vote
1answer
46 views

Cut and Compress 4K Video?

I have a 20 second video which size in 4K which size is 125 MB. It is only about a defective electronic component so accuracy is not important. I want it much smaller. I have these options in VLC ...
0
votes
1answer
20 views

How to convert Adobe Premiere Elements 12 file to some other program that renders faster?

Yesterday, I used Adobe Premiere Elements 12 for the first time. I spent hours and hours carefully editing a video that is 30 mins long. Then, when I went to render (export) it to 1920x1080 30fps mp4 ...
0
votes
2answers
53 views

Downsize 1080p video to 720p [closed]

I have a 1080p HD video and I want to reduce its size by converting it to 720p. I know there are software programs capable of doing this(Handbrake, Vidcoder, FFmpeg, etc.) but instead of the file size ...
1
vote
0answers
26 views

combine 2 half-height video sources into one combined video using ffmpeg [duplicate]

Using ffmpeg.exe (under Windows) , I want to produce a 1280 by 720 pixel video that combines half-height -cropped versions of two video sources (input streams) that are stacked atop one another. ...
2
votes
3answers
4k views

Video players that display audio waveforms

Are there any programs that can play video and display the audio track as a waveform? I need one for either OSX, Linux, or Windows.
0
votes
2answers
36 views

Combine multiple audio files and one picture to produce a video

I've read this thread and this other one. They both explain well how to join a picture with an audio file to make a video (with ffmpeg). However, I'm looking for a ffmpeg command that would merge a ...