Questions tagged [video-streaming]

Continuously sending video data to devices such as other computers, mobile phones or TV sets.

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FFMPEG [48.0K blob data] [migrated]

Hello there i am using ffmpeg on my Raspberry Pi Zero W for RTSP stream. My stream script is : raspivid -t 0 -a 1024 -a "Camera Number" -a 12 -ae 32 -n -w 1280 -h 720 -fps 15 -o - | ffmpeg -...
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speedup preview of video while it is being downloaded using FFMPEG

I need to download cca 10min clip from a much longer video from server every day. So to save bandwidth and time, I want to see a preview and stop right after the desired part ends while it is still ...
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ffmpeg combine mp4 with rtsp stream

Currently, I am streaming the output of my rtsp camera to YouTube using ffmpeg. This is the command I am using: ffmpeg -re -rtsp_transport tcp -i [RTSP URL] -acodec libmp3lame -ar 44100 -b:a 128k -...
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m3u8 to mp4 lossless conversion with VLC or any other free software on Windows

I have read this and several other posts on this site; however, none has answered my question: I'm aware, that I can convert m3u8 streaming file to the mp4, and I only do this with VLC player on ...
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How can I efficiently live stream from multiple cameras to individual streams?

I have a base of low-tech volunteers out there that are wanting to live stream events - simple stuff. They've worked out OBS and a Go Pro to stream to YouTube, no worries. We want to have multiple ...
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10 views

Correct Router/Network settings for video streaming through public network

I am trying to take the OnVue certification exam, I practically did do the following according in: Online proctoring technical requirements Do click in the System requirements tab and click in the ...
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2answers
94 views

Clone one/several windows inside another window for streaming (GNOME)

The need : I am live coding using OBS. I often need to show different windows on the live stream. I also have sensible windows that I absolutely don't want to appear there by mistake, even for a ...
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1answer
14 views

How to append a stream record to previous data recorded?

I have a question about the append process in FFmpeg. Actually I have a live stream that comes from Wowza in HLS format (.m3u8 and .ts). Everything works fine if the stream doesn't fails. In this ...
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How to make your computer fan quieter during voice/video calls without headphones?

Wearing headphones is an obvious solution to a noisy computer fan, since it takes the microphone much further away from the fan. Turning off unnecessary applications is another way to help reduce ...
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1answer
16 views

How to autocaption a video?

I want to play videos and autocation them. I have some training videos and I want to see speech to text like what we have in youtube.(to show text under the video) I don’t want to upload files ...
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1answer
14 views

How can you speed play mp4 files in chrome?

I was looking for ways for auto-generate subtitles for mp4 files and I ran across chrome's experimental features of live captioning. However I also want to play the mp4 file at 1.5x speed. How can I ...
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How to download videos from cisco webex browser viewer? [closed]

My university streams lectures using Cisco webex and then uploads a link for every single lecture so we can see the recorded video like this: https://imgur.com/a/aqzpGN0 There is no way to download ...
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ffmpeg: how to get program descriptions from transmission stream?

I'm getting off-air MPEG2 transmission streams from HDHomerun hardware and recoding it with ffmpeg. The HDHomerun hardware can give me very brief strings that describe the programs: % ...
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30 views

Get HLS decryption key from browser

How can I get decryption key for AES-128 encrypted HLS stream. In the m3u8 file, the URI for key leads to a file which is of 48 bytes which is encrypted. The stream is played by browser so it must ...
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Render second instance of game in windows

I would like to stream my gameplay footage (using obs), my screen is 3440x1440 but I would like my stream to be in 1920x1080 but not downsampeled from my original resolution (circles would become ...
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104 views

Fixing video container keyframes for live streaming

I have a capture card that is handled by a program which I intend to run in a Raspberry Pi 3 (I compiled for it) to stream video locally to a Chromecast. This program is run and spits out video data ...
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109 views

How to ignore “moov atom not found error” when streaming mp4 in real time using FFMPEG?

Is there any way to force ffmpeg to stream mp4 files even if the moov atom is not located. Is it really necessary to have the moov atom for a livestream? So far: this command: -err_detect ignore_err ...
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ffmpeg lags when streaming video+audio from RPi Zero W with Logitech C920

I've been trying to setup a baby monitor with a Raspberry Pi Zero and a Logitech C920 webcam. It does work with VLC (cvlc) but it lags too much and gets worse over time. So I am playing around with ...
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263 views

Unable to use DSLR camera in Quicktime Player under macOS Big Sur

I have a Canon 1Dx DSLR camera and I'd like to be able to capture images directly in Quicktime Player under macOS Big Sur. I installed Canon Eos Webcam Utility and that allows me to access my camera ...
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In manycam is there a way to change the fps of single layer?

In manycam, the user has the ability to change the fps. Is there a way to change the fps of single layer? For example, the flux of the webcam is normal 30 fps and the one of the screensharing is 15fps ...
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46 views

How to put Google Meet and Zoom Conferences always on top?

When using google meet we often need to use the computer and we loose Google Meet windows or tab. How to open a google meet meeting with the video always on top?
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163 views

Icecast server Server returned 401 Unauthorized (authorization failed)

Im trying to share my desktop screen on web page via icecast using ffmpeg but Im getting this error Server returned 401 Unauthorized (authorization failed) icecast://admin:crackme@localhost:8000/a: ...
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Cant stream to icecast from ffmpeg

Im trying to stream my desktop to icacast from ffmpeg but Im getting an error Unable to find a suitable output format for 'http://admin:crackme@localahost:8000/' http://admin:crackme@localahost:8000/: ...
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81 views

Usage of “-timestamp now” in ffmpeg

I'm new to ffmpeg and I'd like to ask if anyone know how to use "-timestamp now" in ffmpeg. https://stackoverflow.com/questions/12293853/how-to-use-ffmpeg-timestamp-syntax said that the ...
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71 views

ffmpeg overlay live video streams and live stream the output

I've got two live streams running on Wowza Cloud, both with video and one also contains audio. I want to overlay one of the video feeds as a picture in picture video and then stream the "merged&...
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20 views

VLC can play video in unicast but not in multicast

Using VLC I'm able to play the camera stream using rtsp://<camera_ip> but trying udp://@<multicast>:<port> instead shows nothing. With Wireshark I noticed that the multicast join is ...
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147 views

how to burn subtitles and transcode live stream with ffmpeg

I try to transcode live stream and scale the video i have managed to do this with this command : ffmpeg -i "udp://@239.253.251.14:5505?overrun_nonfatal=1&fifo_size=50000000" -vf ...
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16 views

Multilingual Livestream with FFMPEG

I would like to do a Multilingual livestream to YouTube with the following: A Youtube livestream will be my source video Using the same Youtube livestream, I want to overlay each language as a new ...
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34 views

What is the significance of #rtstereomixwave and #rtstereomixtopo registry keys for availability of Stereomix input device in W10

My Lenovo T430 has no Stereomix device and e.g. Debut Video capture cannot record sound properly. It is neither disabled nor disconnected. In What's the reason behind "Stereo Mix" ...
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19 views

Trim live video from start and keep saving the rest of the video without creating the output file

I am saving live video from camera. I want to keep only latest 30 seconds of video. When the video is 30 seconds long, I want to remove the 1 sec of the video from the beginning and keep saving the ...
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110 views

Why do some web video players zoom beyond the screen's bounds in full screen mode on ultrawide monitors?

I have a 2560x1080 monitor and some web video players, e.g. https://www.channel4.com/now/C4 zoom the video in fullscreen mode so that not all of the video is viewable. This happens on channel4.com but ...
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13 views

VLC win unable stream webcam to other local device

VLC windows GUI capture usb webcam without aduio on rtsp stream. It's showing correctly on windows itself. But unable to stream on any other local device. rtsp://192.168.86.33:8554/cam rendering no ...
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124 views

how can i add an additonal output to ffmpeg to also pull out a frame for an image after segmenting

this is my command. i need to add something to the end to pull out a vframe every second or specified seconds and save to file. i've see how to do that on its own but not as a second output. i keep ...
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45 views

How do I know which application is streaming to my TV

From the TV, in the sources list, there is "Network - DESKTOP-TXXXXXXX", which is my PC's name. From there, I can access 3 specific directories (clearly hand-picked) and play videos directly ...
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160 views

Measure / Remove H.264 Video Delay

I have an IP camera that sends an H.264 video stream that is supposed to be mixed / muxed with a separate audio stream. On direct mixing ffmpeg -i <video> -i <audio> -map 0:v -map 1:a <...
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70 views

How can I stream videos using VP9 on LAN and capture video at other PC?

I am streaming videos on LAN using VP9 and .sdp file on client-side but unable to capture the videos. How can I capture those video files?
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216 views

How to stream RTSP behind firewall to server

I'm looking for a way to unicast the video stream of an IP camera to a VPS on the internet for recording and live viewing. Like on any network, the IP camera is behind a firewall, and also port ...
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38 views

vncviewer screen doesn't show preview of picamera

I'm using a raspi zero W with camera as a remote birdwatching device. the picamera-preview shows on the screen if a monitor is plugged into the raspi; but my vnc viewer screen doesn't show this ...
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WiFi link for video streaming with intermittent radio link

I am streaming a video over a WiFi link between one stationary and one moving end (ground station and a flying vehicle). I chose WiFi for its high bitrates when the radio link is good. Plus it can ...
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17 views

How to stream different Netflix videos to different Chromecasts using a single phone?

I've got two TVs, each one connected to a different Chromecast device. I want the kids to watch one show upstairs while the parents watch a different show downstairs (both using Netflix). I can launch ...
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15 wall mount monitors displaying the same video through LAN?

We want to have announcement/info monitors around our office and we want to stream it all from the same PC. Is it possible to do this via LAN or what's the best cost effective solution to achieve this?...
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48 views

Options for cloud storage/video streaming

I am kinda new to cloud/online storage solutions, and I have been looking for fairly priced cloud storage solution. My main usage would be to be able to upload small to large(lets say fromm 300mb to 2-...
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Linux fast high res audio + video recording

I am trying to record at least 1280X720 webcam plus its audio. ffmpeg is terribly slow with such resolution, even vlc get ~15FPS. CPU usage is low during these attempts. I know webcamera can give ...
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Continuously live streaming video of the latest image in a folder (Win or Linux)

I have a camera taking pictures every ~second and saving that image to a remote network folder in YYYY-MM-DD hhmmss.jpg format (2020-12-31 232359.jpg). The filenames aren't necessarily sequential, ...
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97 views

FFMPEG Playlist of M3U8 URL Breaks RTMP

I've been trying in the last couple of days to loop through an m3u8 url list as input to an rtmp server which I managed to accomplish but with some urls it breaks the rtmp server in the second file ...
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32 views

Smoothing out FFMPEG video capture output

I'm running the following command on a remote RPi2 with a USB webcam attached and dumping the segmented output to my local machine. ffmpeg -f v4l2 -s 1280x720 -input_format mjpeg -i /dev/video0 -c ...
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1answer
800 views

Stream linux destop as fake webcam to virtuabox windows guest

I would like to capture (a part of) my linux desktop (ubuntu 20.04), stream it as a webcam to a windows 10 guest VM running in Virtualbox. I found Using desktop as fake webcam on linux which got me ...
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499 views

How can two users share their screen to each other simultaneously?

I haven't been able to find a screen sharing software where multiple users can share their screen (specifically, an application window) simultaneously while being able to see the other users' shared ...
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91 views

Recording a network stream using VLC

I am trying to capture a video network stream and save it in a file. I have found a couple of articles on how to do that using VLC, but none of them worked. All of them used the procedure outlined in ...
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265 views

Full Screen Desktop stream using ffmpeg

I am trying to stream a full screen capture of my desktop using ffmpeg and RTP. Playback is through VLC using .sdp file. I get a stream, however, my issue is that part of my desktop remains cut off no ...

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