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

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117 views

FFMpeg generated m3u8 segmented videos long delay before playback starts

I am using ffmpeg to generate a segmented list of files in order to stream them to an iOS app. The list of files is generated fine but when it comes time to play them, the video needs to be downloaded ...
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98 views

Trying to retrieve deleted Facebook videos from the cache

I viewed two videos on Facebook. Seconds before I could download them, the user deleted them. I've been trying desperately ever since to find them on my hard drive. I viewed them on Firefox. I ...
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116 views

ffmpeg add alpha channel to a video

Basically I have a video with a green background, and I mean a perfect green background (red = 0, green = 255, blue = 0) and I want to convert this to alpha (i.e add an alpha channel where 0 255 0 ...
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315 views

Chrome: force youtube to play video in h.264 instead of WebM/VP9

I am using Chrome as my usual browser on OS X. Since the introduction of VP9, youtube videos are now mostly streamed in VP9, requiring a lot of CPU computing to decode and killing my battery. In ...
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44 views

Higher overlay modes on Freescale i.MX 6 Dual

I am playing 1080p video on Freescale i.MX 6's IPU 0 Display 0 Background DI (/dev/video16) and want to overlay it with Qt application via Overlay DI (/dev/fb1). It works really great, but only in ...
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108 views

How can I reduce the choppiness of my ffmpeg conversions

Here are the options I'm sending ffmpeg: ffmpeg. -i input.flv -crf 18 -profile:v baseline -level 3.0 -pix_fmt yuv420p -preset veryslow output.mp4 Here's the input file: ...
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29 views

Cannot access random part of youtube video in firefox

My computer is running on fedora 19 with gnash install (installing adobe flash is not an option for me since it's proprietary.), as well as Firefox. Actually I can watch many YouTube videos using ...
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189 views

How to save udp stream to .ts files whith ffmpeg while keeping timestamp?

I need to record a live udp stream containing multiple TV programs ( up to 30 ) to .ts files .To do so i'm using FFMPEG . I have a muxer at work , but i dont go there everyday so im using a sample ...
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142 views

MPC-HC + AC3filter playing too fast with DTS-HD MA

Video plays too fast, as if fast forward was enabled. It used to happen with VFR MKV video, and was fixed with View > Render Settings > Presentation > Enable Frame Time Correction. This week this ...
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83 views

Manually add video file to Chrome cache

This might be a bit of an odd question considering most people want to do the opposite (i.e, save a video file to disk from cache), but I'm using CyTube (http://cytu.be/) to simulwatch shows with my ...
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127 views

How to disable widescreen video in Skype?

Since the latest (forced) update, Skype insists on displaying my video in widescreen (16:9) format. The problem with this is that it has a lower vertical resolution: in the old 4:3 mode, the video ...
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300 views

FFmpeg Upscaling Video

First I just want to say a bit more about my title, I am not referring to the fact that upscaling doesnt add data(as often asked when upscaling) - but something different. Example I have raw video ...
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34 views

DVD presence not detected until after Windows Update

I am running Windows 7 with Power DVD. I had a couple of DVDs and I googled to find that The Dark Knight Rises is particularly a frequent evidence the issue. When I insert the DVD into the drive, ...
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45 views

Is there multiple types of transitions in ffmpeg while merging two or more videos?

I have 3 video files. I am using ffmpeg library to merge them all. While merging them right now I am using fade In/Out transitions only. I want to enhance that feature in my site, can I do ...
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105 views

Terrible buzzing/screeching sound and frozen keyboard after playing video

I have a 3 year old PC laptop, and recently the following started to happen: When I'm watching videos online or from the hard drive, my computer freezes and makes this very unpleasant ...
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192 views

FFMPEG create zoompan shaky or jittery

I want to create 5 second mp4 video from 1 image. When I use below code the video is smooth. Default direction is zoom in to top left. ffmpeg -loop 1 -i prop1.jpeg -vf ...
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40 views

How can I select the most “steady” frames from a video with ffmpeg, where less motion occurs?

I would like to use ffmpeg to select out frames from a video to make a preview picture. In the past I selected out frames manually: I extracted 1000 frames at equidistant time and then I picked out ...
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97 views

How to check .mp4 file is corrupted or not.

I am recording two different videos in the .mp4 format using ffmpeg command and after that combining them. But sometimes one of the video is get corrupted because of that it will affecting on the ...
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335 views

Embed a Non-YouTube video in PowerPoint 2013

How can I embed a video from cnbc.com or foxnews.com in a PowerPoint 2013 presentation? I am aware of how to embed a YouTube video in PowerPoint 2013, but when I try to embed a video from any other ...
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103 views

Upscale any video-size while concatting multiple videos in ffmpeg

I already asked this question at Stack-Overflow, but they said I should post it here, so here it is: I looked for 2 hours through the documentation, but I couldn't figure it out. I currently write a ...
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414 views

Play two files in VLC dummy and give sout parameters to both of them

I want to add multiple files to VLC's web interface. And the commands below do exactly that. Two files are added to the VLC's web interface's playlist. But as you can see, that's not all I wanted - ...
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53 views

Webm video flashes compression artefacts

Doing som testing on capturing video from VirtualBox for a screencasting project. VirtualBox uses webm for video and it works sort of OK. However, it has "flashes" of heavy compression artefacts. ...
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526 views

stream byte arrays to a video using ffmpeg

This is what I am trying to do: I receive jpegs from an IP camera. If motion is detected I want to upload the jpeg still shot to my server. To save on bandwidth I save each jpeg to a file on my ...
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100 views

How to stream video without a Gui?

I need to set up a computer to put video on several screens at the same time (for charity related stuff). To save as many resources as I can from the original computer (which is getting old), I have ...
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124 views

How i could cut exactly frames from an avi with ffmpeg

I use the command below to cut it to frames. I want 48 frames for my video which is 7 seconds. ffmpeg -i output.avi -r 6.4 -s sxga images\\image%d.jpeg It creates me the frames but i was use it ...
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316 views

ffmpeg HLS demuxer handling of videos with overlapping timestamps

I have a HLS stream, that contains a number of arbitrary TS segments, some of which may refer to the same file. Desktop and mobile Safari plays it just fine, e.g. if I have a playlist that contains ...
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0answers
17 views

PC HD Video Card Radeon Passive Cooling No display when hardware installed

Hi guys i'm noob to computer hardware, i attached my Video card to the motherboard, but it's not displaying anything, do you guys know what i'm missing here, does this video card requires separate ...
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0answers
11 views

“Presenter view” for second monitor?

I have a laptop, which is connected to a projector. Is there any program or method, which can give me a small window on the laptop's screen, of what is displaying on the projector? Sort of a ...
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0answers
66 views

H.264 Pro Recorder Files not closed properly

I have several files that were recorded using a BlackMagic Design H.264 Pro Recorder. It would appear that somewhere in the process, the recorder did not close out the file properly when the ...
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0answers
40 views

Audio/Video Doing weird things, with new Connections

I have a Logitech G430 USB headset, and whenever I seem to plug in a USB with things on it, or with nothing on it, I will get the Ping of a new connection then ALL audio shuts off. Not only that, if I ...
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75 views

Keeping Text Sharp whilst shrinking video size - Handbrake

I've recorded a bunch of videos using a high def webcam, and with a website overlay (think of a sports broadcast, with the score on the bottom of the screen). These videos are 720p avi's, but have a ...
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85 views

Fast & Accurate trimming of small parts from mp4 files

I am looking for a method to quickly trim around 2 frames from the edges of mp4 files. Using ffmpeg I am able to do that with the following, however i'd like something faster: ffmpeg -y -i myVid.mp4 ...
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298 views

How can I reduce latency on VLC

I 'm working on a video streaming application. Server is a Linux machine (ffmpeg-ffserver) and client is a Windows machine (vlc player). There is a latency of about 6 seconds. Despite the fact that ...
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168 views

Why does FFmpeg segment_times create webm files with incorrect duration and start times?

I have a MOV file that I want to split into several smaller files (at certain timestamps in a comma-separated list). I'm simultaneously compressing the video into WEBM files. The command I'm using ...
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274 views

Why does FFmpeg append blank black video to the end of my MP4 files when compressed from MOV?

I have several large MOV files that I want to compress to MP4. Unfortunately, when I use FFmpeg, it appends lots of black (blank) video at the end. (The destination file is longer than the source ...
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63 views

Quicktime killed my AVCHD file

I have a Sony DSC-HX50V photo camera. The system I have been using for video storage is this AVCHD thing, which consists of a big file storing all the videos. Using Quicktime under Mac OS 10.9.2, it ...
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80 views

Rotating display from the Linux kernel

I have a Freescale i.MX6 ARM development computer with a display I would like to mount in portrait mode. The display accepts a DVI input, which I'm driving with an HDMI output from the computer. I ...
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197 views

Possible to black out/dim second screen while using multiple displays in VLC 2.1.3 fullscreen mode?

Pardon if this is a duplicate, but I searched and could only find the reverse of my question. I remember VLC used to have an option to "not" black out the second screen when playing a video in ...
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321 views

Does VLC Player run on multi core machine?

I notice that in the VLC web page, it mention that it can: With faster decoding on multi-core, GPU, and mobile hardware and the ability to open more formats, notably professional, HD and 10bits ...
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541 views

FFMPEG - Stream discovered after head already parsed

I am trying to live transcode an RTMP stream to another RTMP HLS stream using the following command: ffmpeg -re -i rtmp://localhost/videochat/testing -c:v libx264 -c:a:0 libfaac -b:a:0 480k -f flv ...
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230 views

Switch Flash Player / HTML5 to use front camera

I have a Lenovo Helix which has 2 cameras, front and rear. I need to take a picture of myself for a security verification on a site with a Flash player object to perform the capture. It's a similar ...
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130 views

Seekbar not working in Chrome

I have uploaded a video to my Windows Storage and noticed, that the seekbar (of the default Chrome's html5 player) is not working. Url of that video is: ...
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122 views

Bookmark manager for local (offline) video files

I have a directory with several video files and subdirectories with more video files. In this case, they are photoshop tutorials, but that's not entirely relevant. I need to bookmark several videos ...
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327 views

compressing video with ffmpeg while maintaining high frame rate

Update: I watched the output video on a different machine and it was fine. The issue must've been with the program I was using to watch the video. Nevermind. I'm trying to compress videos taken with ...
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0answers
2k views

How to play RTSP live video streams on VLC player?

How can I play RTSP live video streams on VLC player? (v2.1.2 Rincewind, on Windows 7) I can play RTMP live video streams, but not the RTSP streams. I always get errors like this: Connection ...
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95 views

Join AVI and WMV into an AVI

I have a WMV files and two AVI files I need to concatenate into one video file as an AVI file. What the quickest and easiest way to do this on OSX?
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80 views

How do I get Windows 7 Explorer to respect the iOS rotate flag in photos and videos?

When I copy the photos/videos off an iOS device onto my Windows box, some of them are upside down, when viewed in the Explorer. I imagine that is because Explorer doesn't respect the Rotate flag in ...
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234 views

Use an audio/video file from a Linux laptop via USB to be played by Magic Sing ET-23H

I am one of the technical directors of a regular karaoke contest event. For the karaoke contest itself, due to tight budget, we are using what one of the sponsors are providing - Magic Sing ET-23H . ...
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155 views

YouTube style linking inside HTML5 Video player

After a video has played on YouTube, often there will be a follow up link after the video has finished playing in the form of related videos. I'm looking to implement similar into my HTML5 Video. It ...
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396 views

Find out rotation metadata from video in ffmpeg

If I use: ffmpeg -i in.mov -vf "transpose=1" out.mov all .mov files are getting rotated, but what I need is to automatically detect just the rotated videos and change orientation for just those ...