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

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2
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0answers
307 views

No video is written in for some part of video as the segmentation from FFmpeg

I am segmenting a 20 minutes long video to hundreds of small clips . The command is like ffmpeg\\ffmpeg -i nx_1.avi -ss 399.37 -t 1 ka1_2.avi The ffmpeg is in a subfolder. It works very well for ...
2
votes
0answers
613 views

Converting series of images with ffmpeg results in black video

I've just downloaded ffmpeg since it seems to perfectly match my needs (make a video from a set of pictures). I'm currently playing around with some examples just to get started and there's something ...
2
votes
0answers
431 views

dynamic ffserver authentication

Ideally I'd like to just be able to add/remove a list of session keys to/from a text file stored on the server without restarting the ffserver instance, but am open to other solutions such as proxies -...
2
votes
0answers
1k views

How can I download a small section of a long Youtube video?

I need to download about 30 seconds from the end of 50 different 30-minute long videos. Is there any way to do this without downloading the whole of each video?
2
votes
0answers
431 views

Why scrolling in Unity is faster than in Xmonad?

I noticed that when I use default Ubuntu's Unity, everything scrolls fast and smooth. By "everything" I mean web-browsers and vim in terminal when I browse source code. When I use xmonad it seems to ...
2
votes
0answers
633 views

Append JPG to MPG Video ffmpeg/mencoder

I've found a lot of solutions for creating a video from a folder of jpgs, in this case a time lapse stream of photos from a camera. Thats easy, but seems to waste a lot of computing power ...
2
votes
0answers
6k views

How to convert/transmux ismv to mp4 or wmv?

How can I convert/transmux Smooth Streaming ismv files to mp4 or wmv? I've often read about mp4split but it doesn't seem to be freely available any more.
2
votes
0answers
249 views

Monitor calibration icm profile vs color settings?

We bought a Dell U2713H monitor, and because of the price tag we thought it deserves a calibration, so I asked for it. This is the first monitor I bought calibrated, I always thought these are just ...
2
votes
0answers
1k views

FFMPEG - streaming a playlist of videos to RTMP

I'm aware that you can stream files to a video server using FFMPEG - something like the following. fmpeg -re -i localFile.mp4 -c copy -f flv rtmp://server/live/streamName Is anybody aware of ...
2
votes
0answers
547 views

Ensuring previewed still-frame of video is correct in PowerPoint

I'm putting together a PowerPoint 2007 presentation and need to include a video, which is animated vector graphics that I'm producing by making lots of PNG files and then using FFmpeg to compile them ...
2
votes
0answers
3k views

Change VLC recording format

I'm using VLC 2.0.2 to stream videos from YouTube and I'm hitting the "Record" button at times so I can store the more interesting parts of the stream on my PC. I was using this just yesterday and it ...
2
votes
0answers
2k views

Windows 7 losing one of my displays after restart

I have an Intel DZ68BC motherboard with Intel HD graphics card using two monitors (on DVI and on HDMI » VGA). My friend asked me to test if his NVIDIA graphics card works well on my computer (at his ...
2
votes
0answers
275 views

Is there a working method for recreating a quicktime video resource fork?

A few years ago, I backed up a directory of family movies in quicktime format to my NAS. Unfortunately, only the data files went, and NOT the resource forks. Months later when I went to import those ...
2
votes
0answers
406 views

Is there any way to force Safari to use a different UserAgent on a per site basis?

Background: I use Safari 5.1.3 on Lion 10.7.3 on my 13" MacBook Air. I don't have Flash installed and have no intention of installing it. I frequently visit the BBC News site, which has a lot of video ...
2
votes
0answers
641 views

Convert interleaved video into separate left/right videos

I'm trying to make two files from video recorded on 3d camera and can't find how can I separate one video onto two. ffprobe video.m2ts gives me Input #0, mpegts, from 'video.m2ts': Duration: 00:00:...
2
votes
0answers
170 views

DVI portion of video card stopped working after re-installing XP

After a clean install of XP, the DVI side of my video card only works with a DVI to VGA adapter (VGA cable now has to be used on this monitor in question). This monitor Worked fine before with a DVI ...
2
votes
0answers
148 views

Display automatically shuts off while watching videos

Whenever I'm watching a video streamed over the web, my display will auto-off due to not touching the mouse or keyboard. How can I configure the computer to not timeout like this while watching a ...
2
votes
0answers
50 views

Playlist file format for video segments

Is there a playlist file format listing segments of files instead of entire files? For example it would start playing a file jumping straight to 3'12", play it untill 5'42" and switch to the next ...
2
votes
0answers
526 views

Audio Video mixing out of sync with ffmpeg

I am trying to mix a wav file and video file using ffmpeg to get a mpg file. The files are getting mixed but the issue is that the audio runs ahead of video. Please suggest a way to get them in sync.
2
votes
0answers
367 views

mplayer over 2 screens

I recently found an mplayer command line example that plays a video over 2 screens (nvidia twinview) but I lost it somehow. So does anyone know how to play a video with mplayer and have it stretch ...
2
votes
0answers
301 views

Skype - larger video screen?

I was wondering when using skype, is there a way when you are video chatting with someone to make your video screen larger? The person I'm talking to has a much larger screen.
2
votes
0answers
2k views

How to provide multiple input to ffmpeg?

I'm using ffmpeg to create time-lapses and it's working great. As input I have images named 001.jpg, 002.jpg, etc. and then with the command ffmpeg -i %3d.jpg -sameq -s 1440x1080 video.mp4 I create ...
2
votes
0answers
592 views

Is it possible to get Skype to show video side-by-side instead of picture-in-picture?

I want to do some live broadcasting of video calls and I'd like to have the two video boxes from a Skype call be side by side instead of picture in picture. Is this possible on either Mac or PC?
2
votes
0answers
2k views

How do I rotate part of a video?

I have a similar problem as this person. Except that I recorded the first 30 seconds in portrait mode, and then decided the next 4 minutes would look better in landscape mode. So now I have a sideways ...
2
votes
0answers
996 views

Repairing a 3GP file

I was recording a video with my Droid when it froze. The resulting 3gp file was corrupted. I tried playing it in mplayer and VLC. My naive first attempt at repairing it was to try and rebuild a header ...
1
vote
0answers
16 views

SSA/ASS Subtitles - Use frame number instead of time?

I'm trying to construct subtitle tracks from an array of known text strings. The ASS subtitle format can allow me to burn those strings on screen at known timing intervals. However, I don't want to ...
1
vote
0answers
20 views

Gopro HDMI > Google Cardboard (DIY Video goggles)

I want to pipe the HDMI output from a GoPro into a split screen view that can be viewed from a phone to be put inside a google cardboard. For reference, I'm trying to recreate top down soccer as seen ...
1
vote
0answers
49 views

FFMPEG motion compensation and search

I'm trying to modify the motion detection part of FFMPEG. What I want to do is to extend the search space, so that whenever the macroblock hits the rightmost edge of the frame, I need it to still move ...
1
vote
0answers
45 views

TV showing 1080P When my computer says it streams 4k (UHD)

So i've bought an LG 43UF680V And it's amazing, but here comes my problem: I have an ASUS X555UJ and in specs it can stream 4k throught HDMI. My screen size says it is 4k, but the tv info panel says ...
1
vote
0answers
71 views

how to remove “Writing library” & “Encoding settings” from the video when used ffmpeg convert?

when I used this commond: C:\Windows\bin\ffmpeg.exe -y -i f:\1.flv -vcodec h264 -s 1280x720 -acodec copy f:\output.mp4 The video output.mp4 information: General Complete name : ...
1
vote
0answers
40 views

Adding images on both sides of a vertical video using FFmpeg

I have a video that I recorded with my phone vertically. When viewing the video on a computer, there are large, black margins on both sides of the video. I would like to replace these with an image ...
1
vote
0answers
76 views

ffmpeg concat demuxer framerate changes from constant to variable

Issue: The videos I want to join without re-encoding have a constant framerate of 29.97 and the same encoding settings, however ffmpeg concat changes the final output's framerate mode to variable. I ...
1
vote
0answers
41 views

How to quickly watch security camera footage?

I have an IP camera which records 10s .AVI video clips and uploads to my FTP server once motion is detected. So at the end of the day, I have hundreds of small video clips in my FTP. I want to ...
1
vote
0answers
259 views

FFMPEG Trying to restream a RTSP stream to HTTP

I have been trying top cobble something together to take a RTSP feed from a IP camera and re transmit it in HTTP. I am trying to get the feed in to my home automation app which does not support ...
1
vote
0answers
20 views

Imporove voice track in video files mp4 and mkv

Often the voices in a movie or serial will be drowned out by loud music or background noise, often this is deliberate on the part of the studio thinking it improves the drama or what ever. but for the ...
1
vote
0answers
22 views

How to prioritize an application's network interface use?

We have a OSX.10 MacPro that runs AFP (apple file protocol) file sharing services (client version, NOT server) on a gigabit network with approximately 20 machines. A regular need is 1 or several ...
1
vote
0answers
70 views

VLC Media Player Desktop Streaming Optimization

I need to stream my Desktop over HTTP using VLC Media Player. My requirement is to achieve the streaming delay less than 1s. Now I am achieving delay of about 3-5 seconds. What Options(...
1
vote
0answers
14 views

How to insert multi-colored text within Vegas Pro 13?

I am trying to make a simple text frame with two different colored text segments, but I cannot seem to be able to do it. I insert the first color fine, but if I change the color for the next section ...
1
vote
0answers
39 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 ...
1
vote
0answers
24 views

FFMPEG: Creating video stream from non-consecutively numbered png sequence

I have used VLC to decompose a video stream into frames, and it decomposed in a way that it leaps 5 frames per save, so the images are ordered like this: scene04436.png scene04441.png scene04446.png ...
1
vote
0answers
105 views

ffmpeg pipe images extracted from video

I can use the following command to extract images from a video using ffmpeg, saving them to the filesystem: ... | ffmpeg -i - -f image2 'img-%03d.png' I would like to pipe these images to another ...
1
vote
0answers
14 views

Prevent AVCONV from upgrading A/V quality

I am trying to convert all video files of different formats and qualities into one semi-standard format. Thankfully avconv makes this reasonably easy. This is the command that I am using: IFS=$'\n'; ...
1
vote
0answers
46 views

Cannot view certain videos in Windows 10

I am having a curious problem while trying to watch videos, both online and locally. Some videos (notably mp4 videos) don't display the video, showing a blank white screen instead, while the audio ...
1
vote
0answers
126 views

Why When I transfer video from my canon camera to my computer the quality is bad?

I have a canon EOS 700d and I record HD 1080p video at 25fps on it but when I transfer it to my computer via usb cable the quality is terrible. I use Sony movie studio platinum to edit my videos. When ...
1
vote
0answers
251 views

Streaming audio and video to VLC with ffmpeg and ffserver

I'm trying to set up a webcam with a raspberry pi 2 that I can view from VLC media player on another computer. I followed the tutorial here to get video only working, but his other tutorial that ...
1
vote
0answers
196 views

FPS drops when playing video in background

I am trying to understand why I experience FPS drops in demanding games when a video is playing in background and how to fix it. My particular setup (see the specs at the bottom): two monitors in ...
1
vote
0answers
134 views

ffmpeg keeps crashing while playing with ffserver. Can anyone fix this?

So here's the deal. I'm running into multiple errors between ffmpeg and ffserver. The videos are in great shape, far as I can tell, and they stream fine, individually. But when I use a list, well, ...
1
vote
0answers
28 views

Can I check online a local storage video file

I have downloaded a video file which when opened plays only sound and the screen stays black. I'm wondering if it's corrupt or the reason is in my software - codecs, etc. Is there a way to see if ...
1
vote
0answers
51 views

Xorg: no signal on external display

I'm having a problem accessing an external screen through the VGA connector on a ThinkPad T60 laptop. Xorg seems to detect the screen, because after connecting the screen to the VGA connector, I'm ...
1
vote
0answers
104 views

What ffmpeg settings to get the best possible video resolution/framerate that my webcam is capable of?

I want to record the best possible video file (in terms of resolution/framerate/colors) from my webcam. Right now I am using this command: ffmpeg -f v4l2 -framerate 25 -video_size 640x480 -i /dev/...