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

learn more… | top users | synonyms (1)

0
votes
1answer
30 views

How to troubleshoot under-performing hardware combination?

I recently bought a secondhand PC to use as a Home Theatre PC. It is mostly used for streaming online video like Netflix and Youtube but also runs Plex Media Server. On paper the hardware specs ...
0
votes
1answer
227 views

Is an Intel Core i3 fast enough for 1080p Flash video streaming? [closed]

I have an old 2010 laptop (HP Compaq Pressario CQ62 - with Core i3). When I watch HD TV episodes on this laptop, the CPU consumption goes to 100% after about 5 minutes (no other programs running), the ...
0
votes
1answer
73 views

Creating video with multiple audios and one still image for YouTube

I want to create many videos with multiple audio streams and one single picture. For example I have song1.mp3 song2.mp3 song3.mp3 and one single picture. What I need to do is to create many ...
1
vote
1answer
164 views

Playing HD videos makes the system lag or freeze

When I play YouTube videos with a resolution higher than 360p, the system starts to lag/freeze. My CPU usage reaches almost 100%. It only happens when I watch a high resolution video on YouTube or ...
0
votes
1answer
22 views

Video player with command line that can start playing and looping on a selected period

I'm looking for command line tool that can start playing and looping a video clip on a selected section of that video. If you know such tool, please share. For user devnull
0
votes
1answer
156 views

Rip CD/DVD with ffmpeg

Is this possible with ffmpeg? Do you have any links that explain how to do this? I have searched with Google but had not many results. I just want to be able to convert a CD or DVD to MP3 audio ...
-1
votes
3answers
2k views

How can I pipe data losslessly to and from FFmpeg?

I piped a stream from one instance of FFmpeg to another, but because compression was used on the intermediate stream the final result was ugly. I need a lossless pipe to prevent this, and I want it to ...
0
votes
1answer
33 views

MP4 video plays past it's length?

I have a video file. MP4. It was originally 25GB and 10 hours long. But then I tried to trim it with movie maker. I did what I needed and then I published the video. No, I didn't save over ...
1
vote
1answer
29 views

How can I merge two audio tracks together in an AVI file?

I have an AVI file with two audio tracks that I am trying to edit. When I open it in Media Player, it plays fine (I can hear both). However, Windows Movie Maker and Adobe Premiere CS6 both seem to ...
3
votes
1answer
155 views

What's the proper command syntax to change frame size/aspect ratio using ffmpeg?

I have a video that is 720x480 (3:2) that I would like to change to 720x406 (16:9) to match the other videos I have for a site. I have tried various command combinations, including: ffmpeg -i ...
0
votes
2answers
49 views

Video upside down, but only on certain computers

My dad recorded some videos with his smartphone a few days ago. If he now tries to watch them on his PC (Windows 7 + Windows Media-Player) the whole Video is upside down. If on the other hand I watch ...
1
vote
0answers
121 views

Split video into equal file size parts with ffmpeg

i am trying to split a video file into equal file size parts with ffmpeg. At first i get the file size of the original and divide it with the desired number of parts to get the file part's file size. ...
1
vote
0answers
148 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 ...
1
vote
0answers
28 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 ...
3
votes
1answer
190 views

Is it possible to programmatically query for current USB controller bandwidth usage?

I am using three Logitech C920 webcams with mjpg-streamer. The setup works extremely well, but I just realised that it doesn't scale. I began encountering bandwidth issues when bumping the frame rate ...
0
votes
1answer
28 views

How can I add video dimensions to video file tooltips?

Hi there I would like to add some extra info to my video file tooltips on my computer. How do I add video dimensions to my video file tooltips??? AKA the little popup that appears when you hover over ...
1
vote
0answers
79 views

I got a green overlay in my video when using multiply blend mode in ffmpeg

I´m trying to blend two videos with the multiply blend mode. But I got a green overlay in the resulting video. This is a image where are one frame of each input video and one frame of the resulting ...
0
votes
0answers
146 views

ffmpeg - RTMP to RTMP video track copy throwing error

I need to fecth a RTMP H.264/MP3 stream and push it to RTMP H264/AAC stream. I would like to leave the video track untouched as I have several streams to process and would like CPU usage to remain as ...
1
vote
1answer
72 views

ffmpeg fails to generate screenshots

I have a video file and I'm trying to generate screenshots from it. When I use this command ffmpeg -ss 500 -i video_file.mp4 -frames:v 1 -y -s 263*196 output_screenshot.jpg a screenshot is generated ...
1
vote
2answers
27 views

A video player (or solution) that allows to pause/stop viewing a video residing on a networked drive and resume on another PC from the same position?

Basically, what I want is this: you're watching a video e.g. on a stationary PC in your living room, then pause or stop it, go to the bedroom with your notebook, and resume viewing from exactly the ...
2
votes
4answers
3k views

How do I get old footage off an old (tape-based) video camera?

I am wondering what cheap ways there are for getting old footage of a old video camera (that uses tape) onto my computer? The camera does not have FireWire or anything like that, just the video ...
0
votes
1answer
35 views

How to split video file by ffmpeg?

I have this code to split video to multiple parts: @echo off for %%i in (*.mp4) do ( ffmpeg -i "%%~i" -vcodec copy -acodec copy -ss 00:00:00 -t 00:00:05 "D:\Ebook\%%~ni_1.mp4" ffmpeg -i "%%~i" ...
2
votes
2answers
1k views

Replace low-quality audio track in video

I'm looking for a program, that can replace low-quality audio track in video with high-quality one from lossless audio file. It also must be available to shift HQ-track position. I want to do these ...
5
votes
3answers
6k views

Add an audio track to an existing MPEG movie (using MEncoder?)

I have an existing MPG (MPEG-1) video file. The video has no sound. I have an audio track (currently in MP3 format, but I could record it in AC3 or some other required format if that's what it will ...
11
votes
2answers
648 views

Playing large video files over wireless network. What technical specification should I look for when buying wireless router?

I have a Windows 7 desktop with a folder shared out joined to a wireless network. I regularly use my Android tablet (also joined to the same wireless network) to play video files that ranged from 1GB ...
2
votes
0answers
209 views

Play AVCHD (.mts) in chrome (To work with a Chromecast)

I generally use the Mozilla plugin from VLC in order to play local video content within a chrome tab. This allows for casting to a Chromecast device. Although VLC is able to play AVCHD files, the ...
2
votes
2answers
879 views

Why does quicktime stop showing video

Why does quicktime stop showing video Running version 7.6.2 of quicktime When I play my video every so often the video stops moving or goes away (still have audio). Files are .mp4 format. Would be ...
1
vote
2answers
364 views

How do I find the video stream URL of my security DVR by myself?

I have this 8 channel DVR with the brand "ELEC" that streams video over the network. However, I can only connect to it using iPhone apps called vMyEye, Asee+, and other similar names. I want to use ...
1
vote
1answer
99 views

What is the lowest FPS at which the human eye can notice a flickering image? (testing this with ffmpeg)

I wanted to check what the lowest FPS is that the human eye cannot notice as flicker. I created a white jpg and a black JPG. I started with 25 fps which means that I have 24 jpg of white and 1 of ...
0
votes
1answer
60 views

Why are there no video formats that support transparency?

Why are there no [widely supported] video formats that support transparency? For example, the PNG image format supports transparency, allowing for some interesting effects in websites and documents. ...
1
vote
0answers
40 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 ...
2
votes
1answer
16k views

No suitable decoder module: VLC does not support the audio or video format “undf”.

I'm playing a video in VLC which has dual audio tracks. It runs fine with one track (Language), but when I change to the second audio track, doesn't play the audio and gives the error below: "No ...
51
votes
4answers
8k views

What is a Codec (e.g. DivX?), and how does it differ from a File Format (e.g. MPG)?

I'm so confused... what is the difference between an audio/video codec (which apparently is a shorthand for "encoder/decoder", kind of like how "modem" is really "modulator/demodulator") and an ...
-2
votes
2answers
204 views

Dual display using onboard and PCI-E Video card

I have an ECS A790GXM-AD3 Motherboard with a AMD Phenom II X3 and a XFX Ati R7 240 video card. I have 2 VGA monitors that I want to configure in extended desktop and the video card doens't support the ...
1
vote
0answers
120 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 ...
0
votes
0answers
30 views

Why has the ratio on my video changed between programs?

I am using a Mac and have set my video 1440 x 1080 Codec set to H.264, this shows up on quicktime fine as well as any video sharing websites, youtube for example. However when put onto a pc using ...
1
vote
0answers
69 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 ...
1
vote
1answer
51 views

How i could cut the last 7 second of my video with ffmpeg?

I captured a video from my camera, but I don't know exactly how long it is. I want to use ffmpeg to keep and cut only the last 7 seconds of the video. Is this possible? I tried the command: ffmpeg ...
1
vote
2answers
138 views

Exr file sequence to mov with ffmpeg

When I convert an EXR file sequence with x264 using FFmpeg and convert the colorspace from linear to SRGB (with gamma 0.45454545) I get some heavy banding issues (most visible on a dark gradient). For ...
0
votes
1answer
164 views

Is it possible to import MKV file with chapters in PowerDirector?

I'm trying to figure out how to import an MKV file in Cyberlink PowerDirector is that possible? is it possible to work out with the chapters like deleting some of them, or changing start/end time? If ...
2
votes
4answers
1k views

Protect video with password

Are they any method to protect video files with a password, so the player will ask for the password before playback? Currently I am protecting private video files using zip compression with a ...
0
votes
1answer
36 views

Which audio and video codecs are natively supported by Windows 7? [duplicate]

At work we have a creative group which produces videos that our sales team uses for powerpoint decks, client presentations, etc. The creative group is mac-based so they produce quicktime files which ...
0
votes
0answers
83 views

Creating a video with ffmpeg using a remote image file

I'm trying to create a video using ffmpeg, my goal is to put together 1 mp3 and 1 image file which are on a ftp server. When i use a local file as my input image, it works as expected: ffmpeg -loop ...
3
votes
0answers
70 views

Why does ffprobe report an incorrect number of frames?

I have a small video file which ffprobe describes as:- Input #0, avi, from 'sample.avi': Metadata: encoder : Lavf55.12.100 Duration: 00:00:35.00, start: 0.000000, bitrate: 546 kb/s Stream #0:0: ...
4
votes
1answer
542 views

Cut last 30 seconds off ends of videos using ffmpeg in a batch file in Windows

This is what I have so far: for i in *.mp4; do ffprobe -show_format -i "%i" // get duration, then need to somehow subtract 30 seconds, and marry these two commands ffmpeg -ss 0 -i "$i" -t ...
0
votes
1answer
90 views

Connecting Lenovo E545 laptop to HP ZR2740W display - low resolution

I have Lenovo E545 laptop. It has VGA & HDMI video outputs. AMD Radeon HD 8450G Graphics Display: HP ZR2740W It has DVI-D and DisplayPort inputs. First I bought following cable: ...
3
votes
3answers
10k 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, ...
0
votes
2answers
106 views

How does ffmpeg determine individual stream bitrates?

For example, I have a video for which ffmpeg shows Duration: 00:46:43.72, start: 0.540000, bitrate: 2593 kb/s Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [PAR 16:15 DAR ...
0
votes
0answers
35 views

Using pipes on ffmpeg has different behaviour than using files

I am using pipes to provide input and to send out output from FFmpeg The command I use is essentially ffmpeg -i pipe:0 -f flv pipe:1 I am using a Java program that basically provides an input ...
0
votes
0answers
20 views

MP4 file not playable in XBOX360, though seems identical to M4V playable file

I have a bunch of files for my kids that are not playable with the Xbox 360. I have successfully converted some of them to play on my system, but I'd like to understand which is the difference. ...