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

learn more… | top users | synonyms (1)

1
vote
0answers
38 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 ...
2
votes
1answer
114 views

Cutting multi-bitrate MP4 files for Helix Server with FFmpeg

We are using Helix Server in order to distribute Video On Demand (with multi-bitrate) Content among our audience. This means that there is one MP4 file that contains multiple video streams and one ...
3
votes
1answer
22k views

Convert any video to HD Video

I bought a PC that has Intel HD graphics card built it, which supports Full HD Video at its best (1080p). But many videos online are not in HD Format (less than 720p). Hence if I need to convert to ...
2
votes
1answer
293 views

AVS Video Converter: Frame Size stuck at 848

I am trying to follow Youtube's recommended frame size for 480p which is 854x480 (more info here) Now using AVS Video Converter, when I try to change the width to 854, it keeps going back to 848. ...
0
votes
1answer
34 views

Error moving video file while it has no flaws

I've a video file which is complete and it plays without any flaws but when I want to move it to another folder, I face with this error: The request could not be performed because of an I/O device ...
9
votes
2answers
5k views

How to get length of video file from console?

Suppose we have video file some_video. How to get length of it from a shell script (with mplayer/transcode/gstreamer/vlc/ffmpeg/whatever)? VIDEO_LENGTH_IN_SECONDS=`ffmpeg .... -i some_video ... | ...
0
votes
1answer
208 views

How can I list all the details about video files (movies) in a directory?

Let's say we have many video files encoded with different configurations and has different properties (audio and video bitrates, frames/sec, frame width and height etc)... Is there a way or tool that ...
1
vote
1answer
188 views

ffmpeg: adaptively stretch contrast

Consider a (color) video recorded under poor conditions. Its frames' brightest pixels are well below pure white, its darkest ones well above pure black. Can each frame's contrast be stretched closer ...
0
votes
2answers
889 views

Subtitles .SRT are not displayed on my Sony Bravia TV while they are displayed on my Samsung TV

I have plenty of MKV files with their SRT files stored on a DLNA server. Subtitles appear well when watching these movies on my Samsung TV, but do not appear on my Sony Bravia. How can I solve the ...
10
votes
4answers
43k views

Is there an equalizer for windows that works regardles of audio/video player

I'm tired of having to tweak the audio on every media application I have installed. Is there an app that will sit between any media application and my sound-card so that I can set audio levels and ...
0
votes
1answer
50 views

Ext. USB HDD crashed - managed to recover files, but family videos seem corrupted. Anybody know how to fix them?

Last night I had everybody's worst nightmare. My external 2TB drive crashed, with all my family videos and photos on it. Right now you're all facepalming, but yes, I didn't have another backup. Not a ...
-1
votes
0answers
27 views

Stream a particular application using VLC

As you know VLC can stream desktop screen over HTTP. I want to do the same thing except I want to stream the output of my internet browser (Mozilla or Chrome) over HTTP. In other words; it shouldn't ...
0
votes
0answers
16 views

Developing a videoplayer to play hd files in an embedded device

I need to develop a video player which is capable of playbacking HD videos and supporting variable speed rates. Such a videoplayer will have to be installed on a small device (embedded) equipped with ...
0
votes
0answers
39 views

ffmpeg - cannot fade to white in x264

I have a directory full of images that I am converting into a video using ffmpeg. The first frame is a black title frame that fades/morphs into the first video frame, with a 5-frame morph. I do ...
3
votes
2answers
2k views

.flv videos only play audio without image

I downloaded a pack of about 50 .flv videos, most work just fine on any software that plays .flv, but some only play audio without video. I use Ubuntu 10.04 as main OS but also tried on Windows and ...
0
votes
0answers
15 views

Is it possible to replace the video card in IBM Lenevo thinkpad w510

I have IBM Think PAD w510. When i turn on thwn i get 1 long beep and 2 short beeps with no display ...
1
vote
3answers
2k views

How to pass stream to Skype?

Is it possible to pass arbitrary video stream to or from Skype? For example, can VLC Player simulate video source or sink? Specifically, I would like to show my daughter some augmented reality ...
0
votes
0answers
37 views

Is it possible to intercept and record h.264 video streaming through my router?

I have a D-Link IP camera streaming h.264 video through my router to the Internet. I want to intercept this video and save it to my NAS. Is this possible? How should I approach this? I should add ...
1
vote
1answer
457 views

Add audio at specific time in video using ffmpeg

I want to add an M4A audio of 5s duration to an MP4 video file. I have already tried the -itsoffset command of ffmpeg. ffmpeg -i a.mp4 -itsoffset 00:00:10 -i b.m4a -map 0:0 -map 1:0 -preset ultrafast ...
0
votes
1answer
45 views

Using a screen capture program (ffmpeg with uscreencapture in my case) to record a Flash video playing on screen

I'm trying to capture my desktop, precisely a full screen video - think "YouTube video on full screen situation", or if you'd record a programme on iPlayer (or any other content deliverer) - what ...
0
votes
1answer
97 views

Unrecognized option 'b:v' when trying to convert a video

I get "Unrecognized option b:v" when I tried to convert a video. I'm using FFmpeg version SVN-r26402. Here is my error log: Raw Conversion Log Started on 2014-06-29 00:02:02 - 2014 Jun 29 Checking ...
4
votes
1answer
688 views

Processing YouTube video in ffmpeg

I'm using ffmpeg for taking screenshots from video. Is it possible to take screenshots from YouTube video without downloading video to hard drive?
2
votes
1answer
100 views

How can I force caching a video file on nginx

I have two servers configured pretty much exactly similarly. One is my production server, and the other is my staging server. The nginx config on both are copies of each other except for the name of ...
0
votes
0answers
37 views

Concatenate h264 bytestream using cat?

I need to merge few h264 files. Can I do simply trick like this: cat file0.h264 file1.h264 file2.h264 > out.h264 All h264 has the same encoding settings, except resolution and bitrate, and has ...
1
vote
2answers
11k views

How do I add another audio stream to an MP4 file?

I've got an MP4 video file and I want to add another AAC audio track to it. I've tried YAMB and MeGUI (frontends for MP4Box) and it plays correctly in Zoom Player, but it picks the wrong track in WMP ...
2
votes
0answers
82 views

How to merge MP4 files with different bitrates?

I want to merge two or three MP4 videos with MPEG-4 AVC video codec and MP3 (sometimes MP3 Surround) audio codecs. Both audio and video can have different bitrate. If it will be possible, without ...
1
vote
0answers
22 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 ...
0
votes
1answer
34 views

Fast-Play 1 Hr. Video (with Audio stream) in 2 min

For a Research Project in brain and cognition we need to show the subjects 1Hr. videos in 2 mins. I understand there is a function in most media players out there to speed up the video. But I'm not ...
0
votes
2answers
6k views

Computer display suddenly blurry/corrupted, sometimes crashes

I have a Dell Dimension 420 that has suddenly developed what I am calling a "blurry" screen. First: Screen went all pixelated: Mouse would no longer move (laser still on), and keyboard CAPS lock ...
0
votes
0answers
45 views

Converting RAW Blackmagic Intensity Card frames

I am trying to convert raw video frames that I have captured using a Blackmagic Design Intensity card. The output frames are of the format: YCbCr 4:2:2 packed 8 Bit UYVY Abekas How can I convert ...
0
votes
0answers
16 views

BSPlayer not detecting secondary audio track

I have BSPlayer version 2.67. With some movies including dual audio (found for .mkv files until now), it only plays the local language audio (spanish in my case) and shows no option to play more ...
1
vote
1answer
39 views

Is it possible to autocrop black borders of a video with ffmpeg?

I think it has a "blackness" video filter, which can determine if a picture sequence is black. Maybe it also has a filter to determine crop values automatically to remove black borders form edges of a ...
1
vote
1answer
10 views

Sending two video feeds from PowerPoint

Is it technically feasible to send two feeds from PowerPoint? I need one feed with Normal view sent to our projector, and a second feed with the Presenter View sent to a secondary video monitor. I ...
0
votes
0answers
6 views

How to apply a video effect only to a section of the timeline in sony movie studio?

I am facing an issue. I have several video tracks: main video track effects "film effect" (no clip on this track, only effect) that I want to apply to every track for some part of the timeline. ...
0
votes
0answers
18 views

Save a list of titles of videos missed on YT during x time

I am a big youtube watcher. But I am gonna leave for a month. And I know by experience that the youtube sub feed wont go 1 month back. So my question is: is there a way to save with a software (or ...
0
votes
2answers
82 views

IP camera's multicast/RTSP conflicting with 2.4GHz Wi-Fi?

Here at our business we have a Netgear R7000 running DD-WRT. I have been slowly adding IP cameras which I run using Blue Iris software. The last camera I bought (which is NOT a wireless camera), when ...
0
votes
1answer
20 views

Strange frames in movie

Why is this happening? Is it some problem with one frame, which stays for few next frames, before overwritten? Is there a way to fix it?
0
votes
3answers
53 views

How to add subtitles and an additional audio track to a DVD without having to re-encode the original audio/video data?

So I have this DVD with medium-quality video recordings. I'd like to augment it by subtitles (in two languages) and add a second audio track (a translation). So far I only found tools that require ...
2
votes
1answer
12k views

Use Media Player Classic to resynchronize subtitles?

I see that in Media Player Classic, under View - Subresync, there is a tool that should serve to resynchronize subtitles. What is the procedure exactly?
0
votes
1answer
27 views

How to replace part of audio in a video using the command line?

Part of a recorded audio contains sensitive information. I want to remove that information while keeping the video and rest of the audio intact. Ideally using command line and being able to exactly ...
-1
votes
1answer
42 views

Can't play HD videos on PC

My system has an AMD Athlon(tm) Processor LE 1600 2.21 GHz, and 896 MB RAM. I can't play HD 720p & 1080p videos on that PC. I'm using MPC and VLC player. When I open the videos, it shows a black ...
3
votes
1answer
10k views

What is the optimal video format/size for using in powerpoint?

My daughter's school is looking to embed some videos in their powerpoint slides. I am helping the teacher with conversion software and settings recommendations. I tend to prefer h.264 for it's ...
0
votes
0answers
90 views

Google Chrome failing on youtube

So my issue is that only youtube site is having problem, its completly messed up as in no layout and cant load any videos whatsoever, i tried clearing cache among other solutions around teh internet ...
0
votes
1answer
53 views

FFmpeg map optional (audio) stream

I use this command to produce a file scaled and with an overlay image: ffmpeg -i input.* -i overlay.png -filter_complex "[0:v]...; ...[1:v]overlay=... ... [resultingvideo]" -map "[resultingvideo]" ...
1
vote
0answers
47 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 ...
1
vote
0answers
29 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 ...
0
votes
1answer
60 views

storing and securing the video using ffmpeg

this is my first question on the site. Currently I am working on one application which captures the video and store it in the system hard drive. Both the functionality is working fine.We are storing ...
5
votes
1answer
195 views

Setup for a live (low-latency) audio video broadcast over Wi-Fi?

The Upgrade We are capturing audio (from mixer) and video (from a camera) from a main auditorium and passing it to separate rooms within the building. We used to have done this via manual ...
0
votes
0answers
28 views

Ffmpeg : I-Frame detection oddity on a single channel input

Summary: When trying to abstract out I-Frames from various positions in videos with slight time offsets, identical results were produced between different offsets. Through experimentation a workaround ...
1
vote
1answer
3k views

Custom video icon for a single video file in windows 7 file explorer

Recently I found a video on the net ( a .mp4 file), and when I had it on my computer with Windows7, I noticed its thumbnail was not the average windows 7 video thumbnail (which looks like a piece of ...