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

learn more… | top users | synonyms (1)

2
votes
0answers
508 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
42 views

How to add dynamyc annotations to videos?

I would like to add some dynamic annotations to a video, like that: a label that follows an object moving a circle that involves and follows an object moving, growing or shirinking when it get ...
2
votes
0answers
309 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
298 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
688 views

auto tag video and add to itunes on windows

I'm looking for an app similar to Auto TV Tagger that monitors a folder and auto magically tags the file either through a webservice or by the file name given then adds it to itunes in the proper ...
2
votes
0answers
523 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
1k 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 ...
1
vote
0answers
12 views

avconv / ffmpeg covert images to video skips frames when frame type changes

I have an instance of ffmpeg that captures one fps from our home CCTV cameras. At the end of the day I have an ffmpeg script that takes those images and turns them into a video. This is fine with one ...
1
vote
0answers
20 views

How do you keep FFMPEG / libx264 from producing a high bitrate at the start of the video?

I have noticed that the Linux version of FFMPEG tends to blow its bit budget like a drunken sailor at the very beginning of a video. Is there a way to prevent this and/or suppress it? I looked thru ...
1
vote
0answers
59 views

Video playback is very slow over HDMI after windows 10 upgrade

I have upgraded my laptop to windows 10 from win 8.1 It's a Dell M3800 Pecision 64 bit Prior to the upgrade I could plug a hdmi cable into it and attach it to my TV to watch Netflix, Iplayer etc ...
1
vote
0answers
16 views

Disable one side of the sound

I want to make a video clip with some old videos I downloaded from YouTube. The problem with these old videos is that one side of the earphone makes shrill noises. Is there a way to edit that videos ...
1
vote
0answers
66 views

Corrupt MP4 file: ffmpeg codec, global header, and dvvideo errors. Can it be repaired?

So, I have a number of corrupt MP4 files (some corrupt AVI files, too, but I believe that's a different problem). They seem to have gone corrupt when I had an external hard drive that they were on ...
1
vote
0answers
21 views

FFmpeg's trim command not honoring start value? Video playing from beginning through to trims' end value

I've got a rather weird problem. I can't seem to get ffmpeg's trim command to actually honor the start time and drop the frames before it. For instance, given the command: ffmpeg.exe -i myvid.mp4 ...
1
vote
0answers
956 views

Asus Zenbook UX305 video driver repeatedly crashes

Multiple times a day I get this error: "Display driver has stopped responding and has recovered". The screen goes black for a few seconds and all programs that rely on the GPU shut down (Google Maps ...
1
vote
0answers
48 views

saving standard-compliant video from Hikvision DS-2CD2032 cameras

I'm trying to save video from Hikvision DS-2CD2032 cameras (aka Swann HD-820CAM aka Lorex MCNB2151) via ffmpeg. It basically works with a command like this: $ ffmpeg -rtsp_transport tcp -i ...
1
vote
0answers
74 views

CPU usage while uploading video

This may be a dumb question, but when I'm uploading video to YouTube (through the site's own upload form, in Firefox, running on Linux), I see more activity in my CPU status monitor and hear the fan ...
1
vote
0answers
132 views

VLC h265 failure to display

In VLC 2.2.1, an MKV file fails to show video, playing audio OK. Error message: Codec `hevc' (MPEG-H Part2/HEVC (H.265)) is not supported. http://pastebin.com/7duQbH6S has the verbose debug ...
1
vote
0answers
34 views

IPS LCD Left-side Interlaced Dark Pixels

I purchased three i2367fh IPS panels from AOC a few years ago, one of which had a leaky backlight; But once that was replaced, the new panel began intermittently mudding up the video signal on the ...
1
vote
0answers
25 views

Getting same quality with “baseline profile”?

I have a couple of videos taken in H.264 using the high profile and I want to convert them into a baseline profile while keeping the same quality and size so, that they can be easily played on an ...
1
vote
0answers
40 views

Why do all sounds work except DVD playback?

I've come across a strange issue and can't seem to fix it myself or find an answer online. I have an HP tower running Windows 7. Absolutely every sound works on it except for when a DVD is inserted ...
1
vote
0answers
29 views

avconv huge output file size

I am trying to rotate some mp4 videos (shot with an Android smartphone) 90 degrees clockwise. I have been using variations of the following command: avconv -i 20150604_192846.mp4 -c:v libx264 -preset ...
1
vote
0answers
44 views

Splitting audio out with ffmpeg, recombining with video, inserts black frames at beginning

I am using ffmpeg to split out the audio from a video file, converting it to a wav, and then recombining it with the video. When I do this, the new video has black frames at the very beginning. Here ...
1
vote
0answers
23 views

Dual monitors on one screen in OSX Yosemite?

I am seeking a way to keep a permanenent small window in the corner of the screen that can show video, while working on multiple desktops (TotalSpaces 2), without the window getting affected. In the ...
1
vote
0answers
65 views

How to fix video and audio out-of-sync (sometimes)?

I have a avi video file which plays perfectly on Linux (using e.g. mplayer) and on one TV, but when using another TV the audio happens to be out-of-sync with the video by about 5 seconds! This does ...
1
vote
0answers
24 views

How can I batch convert all of my video files to AAC audio without converting the video?

I've used XMedia Recode to do this and it works great. I set video to "copy", audio to "convert", and it takes 2 minutes for a 2GB file. There's two problems with it for batch work though. It doesn't ...
1
vote
0answers
35 views

What techniques can I use for audio and/or video chat that don't use SIP and complex layered architectures?

Point A few years ago a friend and I were messing around and we created a super-simple video chat link by running VLC twice on both our computers: one "watched" the local webcam and cloned the video ...
1
vote
0answers
76 views

How do I play video that can speed up, slow down, & play backwards?

I have the problem of needing to play a video while being able to arbitrarily increase or decrease the playback speed, as well as being able to have negative playback speeds (watching the video ...
1
vote
0answers
20 views

FFMPEG set a upper limit to bitrate only a a interval of video

How i can define a variable bitrate from 500k to 1024k between 0~1min30, between 1min30~3min up it to 2048 to 4096 and from 3min until end down it to 500~1024 again?
1
vote
0answers
121 views

Live TV streaming with Tvheadend works fine on laptop, but not on home server

I have a DVB-T TV tuner USB dongle (Afatech AF9013/AF9015) which I'm using in conjunction with the latest version of Tvheadened and the latest stable build of Kodi. I ultimately want my small home ...
1
vote
0answers
15 views

What is the difference between Burning via Data Size over Time Duration

Assume i have 2 Video Files, both 20 minutes long, both same format. one is 2 GB (File A) and one is 200 MB (File B) because it's been heavily compressed. Now if i remember correctly i can burn 120 ...
1
vote
0answers
107 views

FFMPEG: Windows binaries with globbing (libavformat) support?

I am struggling to get ffmpeg to combine a bunch of images in to a video which have a format with a full 17 digit timestamp. 17 digits is well beyond what -i %d will support. So I want to use ...
1
vote
0answers
162 views

Is there a way to force or maintain the aspect ratio of a window when resizing it?

I have certain windows like VLC for example that I'd like to be able to resize without them losing a 16:9 ratio. This would be useful for image viewers too. And just plain functionality would be ...
1
vote
0answers
89 views

how to speed up the process of the ffmpeg command

I want use the overlay filter to composite the video with some image, Command is ffmpeg -i 30.mp4 -i out1.png -i out2.png -strict -2 -filter_complex "[0:v][1:v]overlay=enable='between(t,0,1)' [out]; ...
1
vote
0answers
91 views

ffmpeg generates videos with start time greater than 0

I'm trying to cut videos with ffmpeg. I know how to do it in the "normal way": ffmpeg -i test.mp4 -ss 0 -t 6 -c:v libx264 -profile:v main -level 3.1 -preset medium -crf 20 -r 25 -b:v 1200k -minrate ...
1
vote
0answers
90 views

FFMPEG How do I use the apad filter in a chain of filters in filter_complex?

My input is a video file with an audio track. If the audio is shorter than the video I need to extend the audio track to the length of the video. It works great with the apad filter: "C:\Program ...
1
vote
0answers
49 views

FFMPEG results in a black video from converting images

I am attempting to create an mp4 video from a sequence of images numbered 1 to 100. The problem is that I keep on getting an output video that is black. Each images is as such all the way to 100. ...
1
vote
0answers
66 views

Configure ffmpeg and ffplay to PAL signal

I have a PAL camera and a stk1160 based video grabber, which is correctly recognised as a /dev/videoN under linux. I am able to watch the feed with vlc after setting up the video standard as a PAL: ...
1
vote
0answers
26 views

Video card not working only on one computer

I got this weird problem. My girlfriends computer suddenly just stopped displaying any picture oon the screen. Video card is Nvidia GF9400GT, which is originally silent, but I've added one 60mm fan to ...
1
vote
0answers
69 views

Can someone explain what “video acceleration” is?

Basically, a user came to me complaining that when she opened a certain video file in VLC, she received an error saying: "Your video output acceleration driver does not support the required ...
1
vote
0answers
460 views

avconv stream video from USB webcam without delay

I need to stream video from USB webcam. I am using avconv, but it has delay min 5s. Is possible to stream in real time without delay? avconv -f video4linux2 -i /dev/video0 -vcodec libx264 -f mpegts ...
1
vote
0answers
55 views

MPEG DASH with H264 + H265

I've tried to build an MPEG-DASH stream coding some bitrates in H264 and some others in H265. In a nutshell I'm trying to code the same video with ffmpeg for the lower bitrates in H264 and the highest ...
1
vote
0answers
83 views

Trying to identify the cause of this display corruption

I don't actually know where the root cause of this issue lies or even how to accurately describe it so I will do my best to provide the details of the situation. Hopefully someone will have a better ...
1
vote
0answers
419 views

How to add zoom in effect to a video?

I'm working in a project where I should generate a video, from an input set of videos or images. The problem is when I generate the video I must add a zoomin effect to each input element. I solved ...
1
vote
0answers
169 views

FFmpeg / libav / Avconv settings to add higher contrast to a video

I successfully convert videos to mp4 from images turning the video black and white, is there a way to add contrast and brightness to balance the higher contrast so that it looks sharper? Here is the ...
1
vote
0answers
45 views

Importer screen stays empty

I'm trying to record my old video tapes on my computer, using the Pinnacle Studio 700 PCI Card and Windows 7 Ultimate (SP1, 32 bits). The PCI card is recognized as Pinnacle AV/DV2 and the most recent ...
1
vote
0answers
38 views

How to test videos for artifacts?

I am having some issues with videos where the encoding gets choppy for a stretch: frames jumping back and forth, pixels bleeding from one frame into another. Like in this video right there. I know ...
1
vote
0answers
269 views

FFmpeg Unable to find a suitable output format for … [RPi]

I was trying to set-up ffmpeg on RPi to stream video from webcam. This is my launch script: ffserver -f /etc/ffserver.conf & ffmpeg -v verbose -r 5 -s 640x480 -f video4linux2 -i /dev/video0 ...
1
vote
0answers
221 views

How to set profile compatibility of an fMP4 using ffmpeg?

I'm using ffmpeg to generate a fragmented mp4 stream that will be consumed by an HTML5 player. I think I have a correctly formatted mp4 stream of data with an empty moov at the start and a series of ...
1
vote
0answers
42 views

How do I view an AVI file that requires GTCC codec?

I have pretty much tried every type of decoder package out there (K-lite, CCCP, Satsuki, etc.) but no luck. I used an old webcam back in the early 2000s when recording. Really need to know what this ...
1
vote
0answers
38 views

How can cut the time it takes to tag videos using Windows Explorer?

When I try to tag a video using windows explorer it takes roughly 10-20 seconds for it to complete. If I try to tag multiple videos using the same tag it takes even longer? How can I cut this time ...