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Questions tagged [video]

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

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How to enable pitch shifting in MPC

How can i enable pitch shifting in MPC, i read in Wikipedia that Media player classic has pitch shifting but it seems its not enabled (doesn't work?), i was wondering i have to do something to enable ...
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0answers
17 views

Merging audio and video with ffmpeg causes audio to miss parts or be silent

I'm currently taking two urls "ffmpeg", "-i", "example.com/video.mp4", "-i", "example.com/audio.m4a", "-c", "copy", "-map", "0:v:0", "-map", "1:a:0", "-flags", "+global_header", "-movflags", "...
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1answer
19 views

How do I play a 4:3 video stretched to 16:9 on FFplay?

I want to play a 4:3 video stretched to 16:9 in FFplay. What is a command line for that?
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0answers
15 views

How can I speed up laptop internal webcam capture in Ubuntu 18.04 vs Windows 10?

I am writing C++/opencv code for some image processing routines, and am using my Dell Precision 7730's own webcamera to get test video input. Video card is Quadro P5200. I started in Windows 10 ...
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0answers
8 views

Ubuntu to edit GPS MOV metatag

Currently, i have request to modify GPS metatag in MOV, recorded by iphone, in order to make iphone photo gallery identify it to the location I want. After googling all information about EXIF, the ...
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0answers
17 views

ffmpeg: Encode a video that has creation_time recognized by android

I use ffmpeg to convert some of my videos which were recorded on an android phone (samsung galaxy s9+): ffmpeg -i src.mp4 -metadata creation_time="2013-05-02 22:01:04" -c:v libx265 -crf 24 -preset ...
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8 views

Multicast stream on EyeTV Netstream

I purchased an EyeTV Netstream satellite box from Germany. I’m able to successfully lock FTA satellite signal and receiving FTA video. The way this box work is it has satellite cable connection, USB ...
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0answers
49 views

Images to video conversion with ffmpeg results in very low quality video

I'm using the following command to convert a bunch of images to a video. It's usually what I use for similar processes and normally the result is lossless: ffmpeg -framerate 60 -f image2 -i '/tmp/%*....
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1answer
57 views

Real time video recording frames processing

Recently I have been working on an Android camera with lots of features using camera2 and OpenCV, and now I want to record a video with custom resolution, for example if my device support 1920×1080 ...
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0answers
12 views

No sound when playing azure media service streaming with Flash of video.js

If I set "techOrder" to "Flash (Only Flash is allowed)" in "video.js_vhs_player" on the following site and play the sample video, the sound does not play. site: http://openidconnectweb.azurewebsites....
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1answer
539 views

concat video and images, and add audio with ffmpeg, but video output skips several images and console returns audio errors

I need to concatenate one video and many images, and add audio. I do not need a particular file format, but I prefer a one-step method without unecessary re-encoding. I tried with the following ...
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0answers
13 views

Stream Soundtracks to RTSP Site via ffmpeg continually & shuffle

I'm currently using Linux (raspian->debian) and noticed ffmpeg is pre-installed on this distro so I ask myself now: Is it actually possible to continually stream a playlist (or a folder if that's ...
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1answer
16 views

Extend video monitors

How can I extend video to have 2 different programs running on different screens on my dell inspiron 3847 with HD Graphics 4600? I have 2 monitors with VGA only inputs and PC has only 1 VGA, 1 HDMI ...
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0answers
20 views

Rendering a high-fps gif from a video with ffmpeg?

I've been at this for about an hour. I've extracted the frames from my clip and rendered the frames to a mp4 with no problem. The mp4 plays exactly like how I'd like my gif to play, but when using ...
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1answer
21 views

Dictate Drop-Frame Timecode In FFmpeg

trying to capture a capture card with FFmpeg at 60000/1001 (59.94) FPS. Everything seems to work fine until I drag the file into another program like Adobe Premiere, it can't seem to tell that the ...
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3answers
76 views

How can a USB drive cotaining video file be tested for malware?

I'm on a macBook Air running Mojave and I was given a USB drive containing video files (.mp4, .mkv, .avi) gotten using a torrent program. I don't know the original location of the files, and need a ...
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1answer
36 views

Choosing compression method and settings for mp4 files

I've got a hard drive filled up with videos, and want them to take up as little space as possible.   Video encoding: Around 20000 kbps datarate and bitrate 30 frames/second H.264 AVC Audio ...
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26 views

MPEG-4 (Base Media Version 2) codec on Debian for using Plex

i run an Plex Media Server, based on Debian 9.9.0. On this sever, are some File with MP42. Playing theese files on my Windows PC, works perfectly, but Playing theese files on the TV App doesnt Work. ...
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1answer
44 views

Hardware accelerated encoding using FFmpeg on Intel Atom based platform (UpBoard)

I am working with Intel UpBoard that has an Intel Atom CPU, and want to stream a video from a usb camera to a live stream service. Therefore I am running a h264 encoder that uses h264_qsv codec, which ...
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0answers
16 views

Windows 10: What could make my app faster/more stable when grabbing it

I've got a console application that connects a nRF bluetooth USB dongle and starts data notifications. It's a sample program packaged by Nordic (the dongle manufacturer), the code source is available ...
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0answers
21 views

Is it possible to accelerate my office's stream capture process?

Hoping someone has had experience with this roadblock. As a law office, one of our tasks is to capture court proceedings that were streamed within the last couple of days. This task is complicated by ...
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0answers
15 views

Excel sometimes display garbage during F2

I have fairly large Excel sheets under Excel 2016. Lately, I have noticed that sometimes when editing cell (F2), the formula on top left of screen is showing correct like =SUM(xxx:yyy), but on the ...
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0answers
30 views

OSMC automatic video looper issue

I am having tough time figuring this out. I would like to achieve the following: When I launch my raspberry pi 3 (running OSMC player) to start running a video and loop it forever. No menu, no nothing,...
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1answer
40 views

How do I convert an MKV file to MP4 that has two audio streams and I only need one of them with ffmpeg?

The command I usually use in case of single audio stream mkv files to convert them to mp4 is: ffmpeg -i location of mkv file\movie.mkv -c copy location of my usb stick\blablabla.mp4` But when I did ...
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2answers
50 views

Recording window application [Linux]

I want to record a certain program window via FFMPEG, but x11 can't capture window. Is there some way to do it on Linux? On Windows I can do this: ffmpeg -f gdigrab -framerate 30 -i title="System ...
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0answers
68 views

How to add zoom transition effects using FFmpeg to a variable number of images?

How can I add add zoom transition effects using FFmpeg to a variable number of images? I am able to create video from a variable number of images but I am not sure how to add zoom in and out ...
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1answer
48 views

Does it matter how you order your filtergraph in ffmpeg?

I recently created an ffmpeg script that takes two groups of three videos each, runs them together in their groups first, then vertically stacks them, while keeping audio for the first group only. ...
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1answer
46 views

How to Play 2 Videos synchronized fullscreen on 2 Monitors?

I want to play 2 Synchronized Videos on 2 Monitors in fullscreen mode. I know about opening multiple files with vlc, but they are not really synchronized meaning if I stop one the other continues ...
2
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1answer
49 views

FFmpeg concat demuxer cuts are wildly inacurate, even for raw audio

I'm struggling with the ffmpeg concat demuxer. Say I have two files: ones.wav and zeros.wav. They both are 5 second long, in ones.wav all samples are 1 and in zeros.wav all samples are 0. Both files'...
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0answers
30 views

Avoiding blocky output on ffmpeg live stream

I am new to ffmpeg and tvheadend. However, I would like to create a live TV stream using ffmpeg and tvheadend. From tvheadend, I can view the different tv channels - however, they stop working after ...
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0answers
9 views

Audio level in video different between Mac players and other players

I ripped a dvd of a family event using HandBrake, and increased the gain setting to maximum since the audio on the dvd was extremely quiet. Now when I play the resulting m4v on iTunes, Quicktime, or ...
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0answers
52 views

FFMPEG - Encoding video changes sounds and subtitles tracks names, and make them invisible for SmartTV / Chromecast

First of all, I'm not sure this is the right place for such question. Please let me know if I'm wrong. INTRODUCTION: I'm regularly recording movies on french channels, via a functionality of my NAS. ...
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0answers
35 views

How do I output a video that is over 600 fps on FFmpeg?

I have two videos that I want to concatenate, one is 29.97 fps and the other is 30.41 fps. I'm trying to make it look perfect by making the frame rate 91138.77 fps, but it can only go up to 600 fps. ...
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0answers
98 views

Stream multiple RTSP streams to Virtual webcam

I'm looking for a way to receive multiple RTSP streams (from IP cameras) and then send them to virtual webcam. I looked on the web for a solution, and I found that it's possible to create a virtual ...
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0answers
118 views

How to disable picture-in-picture in Firefox?

Last month, probably in Firefox 66, a new feature showed up - picture in picture video. Now when I exit a YouTube tab playing a video and go somewhere else on the website, the previous video hangs in ...
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1answer
41 views

Lossless (or close to) mkv to mp4 conversion with burning subtitles

I'm new to ffmpeg, sorry if this was asked before already but I can't find the exact solution I'm looking for. So I have a 250MB .mkv file with subs And I want to turn it into a .mp4 file with ...
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0answers
9 views

Resolve turns video pink after importing

I want to import a video (mp4, ) into DaVivi Resolve 16. PLaying it with VLC Media Player it looks normal but in Resolve skincolor becomes pink and shadows become greenish(enter image description ...
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0answers
38 views

Ffmpeg creating video with incorrect duration

My input file and output files have different durations even though I am only adding rotation metadata to my file. Why is ffmpeg creating a different duration for the file? ffprobe output of input ...
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1answer
28 views

Random YouTube videos almost cause system halt with lag in Chromium on Debian 9.8 i686

Random YouTube videos almost cause system halt with lag in Chromium on Debian 9.8 i686. Drivers and web browser seem up to date. Most YouTube videos, for example this video plays with no issues ...
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0answers
20 views

How to watermark all files in folder with ffmpeg? in windows

when I use for %%a in ("*.mp4") do ffmpeg -i "%%a" -i watermark-image.png -filter_complex "overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2" -codec:a copy "newfiles\%%~na.mp4" pause i makes all the ...
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0answers
13 views

Can I use an external camera with my tablet to stream video and take pictures?

I would like to know how to install and use an external camera with my tablet. I know my tablet is not very new, but it still works decent and has been very durable, it works pretty good for the ...
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1answer
80 views

How to achieve a fast encoding speed from H.265 to H.264 using FFmpeg?

So I'm pretty new to video encoding and I'm currently using FFmpeg to change the encoding of a video from H.265 to H.264 so it's suitable for the web. The current syntax of the command I'm running is ...
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0answers
67 views

How to record video (1080p 30fps) from raspberry pi camera and stream the 'recording in progress' file simultaneously?

The objective I am trying to achieve is streaming 1080p video from Raspberry pi camera and record the video simultaneously. I tried recording the http streaming as source but didn't work on 30fps. A ...
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23 views

“MP4” files unreadable in TV/Video players but readable in my PC and phone

I download series(.mp4 files) with my phone and copy them into the USB flash memory using OTG adapter and see them in the TV or the video player. But this week I downloaded 3 files as always but got ...
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22 views

ffmpeg pipe from Openframeworks OFXVideoRecord, frame= fps= q= size= even when done until i kill Xcode process 2nd time

I am using OFXVideoRecord and hacking it for offline video recording: execThread: starting command: bash --login -c 'ffmpeg -y -i ../../../data/beat.wav -r 30 -s 1280x720 -f rawvideo -pix_fmt rgb24 -...
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1answer
91 views

How can I blur the background in Skype?

How can I blur the background in Skype? I read on https://www.ultimatepocket.com/skypes-cool-useful-background-blurring-feature-goes-live-for-the-pc-and-mac (mirror): [blurring the background is] ...
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1answer
96 views

ffmpeg to get an HEVC RTSP stream into an mkv container

I'm trying to copy an hevc video from an RTSP feed into an mkv container. This works: rtsp(hevc) -> out.hevc then out.hevc -> out.mkv This doesn't work rtsp(hevc) -> out.mkv Working below: ...
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0answers
35 views

Command to find and output the codecs of all videos in a directory tree

I have a large digital movie collection, and I've been trying to come up with a way to determine what codecs make up each video in the collection, and then output this information to a file along with ...
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0answers
81 views

ffmpeg as rtsp server with authentication is not working

Here is the scenario . I want to use ffmpeg as rtsp server and I start ffmpeg to listen for connections like so ffmpeg -loglevel debug -listen 1 -i rtmp://admin:admin@0.0.0.0:8888/live out.m3u8 ...
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1answer
42 views

Will I get video from the motherboard if the CPU doesn't have a GPU [closed]

Old motherboards like M4A88 series have an integrated video but the current ones have the connectors like HDMI and or DVI but Does them have an integrated video or those connectors only works if the ...