Questions tagged [streaming]
The act of transmitting media over a network for consumption in real time.
263
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Video hosting with local control
I am writing a web application with video lessons in sequence. I want to use a streaming service for high availability and compressing content for different viewports. I would like the user to watch a ...
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2
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clean HDMI output camera - on start
I am looking for a 4K camcorder or DSLR camera for live streaming (tangential question: is camcorder or DSLR better for that?).
To have live streaming, I need pure HDMI output. Currently I do it with ...
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Is it possible to push an video stream via OBS to a video server for consumption by another OBS Studio?
Just wanted whether this was possible.
I know that within OBS, I can stream video from my phone camera on a url like localhost:5050 when I used a "turn phone into webcam" app.
So I was wondering, ...
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How to create widely readable video stream with ffmpeg?
As for test I use just a file with data as input and I would like to stream it as video. For this purpose I used ffmpeg:
C:\tools\ffmpeg-20200523-26b4509-win64-static\bin\ffmpeg.exe -y -f rawvideo
...
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FFMPEG Live stream loop with overlay - Errors
I'm trying to do a livestream with a video loop, sound from the desktop and an overlay image that updates when I replace the file and a text that also updates when a file is replace but I seem to be ...
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FFMPEG to YouTube: YT says "Unsupported resolution for latency configuration ... The current resolution is (65535x65535)"
I've a facility that runs on a Windows machine, that records the screen to disk, and it works well. It takes audio streams from two virtual sound cards and a stream from the display and produces a ...
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Serving static video content directly vs. via adaptive streaming protocols (HLS, DASH)
Is there an advantage of serving static video content (not a live stream) via adaptive streaming protocols such as HLS or DASH over serving them directly as files using HTTP server in terms of speed?
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Remove freezes in stream record using FFMPEG
I have original video with stream record. I need to remove freezes caused by network issues. I notice that sometimes it freezes only video, sometimes video and audio.
I tried to use command:
ffmpeg -...
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1
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Network Stream reloading in a loop (Nginx/RTMP Streaming Server)
As the generic title suggests, I do not know exactly how to explain my problem, neither do I know what could cause it. Hopefully this ends up to be the right place looking for help, as I do not find ...
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A/V Crash Course for Church
With COVID-19 shutting down the whole world, our church is now broadcasting our services on YouTube. Last Sunday we used a WebCam because we only had 48 hours notice, and it just worked.
Given that ...
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how to pipe:/// through a .sh or Python script, or use some sort of setting files with FFMPEG
First post, so be kind please :)
So a quick bit of history. I am using tvheadend, and the inbuilt transcoder murders my CPU, and provides average quality output (it's powered by ffmpeg), if I pipe ...
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How to set up streaming from two webcams or stereo camera (2x lens) to VR headset with minimal latency?
I have watched Barbie doll illusion on youtube and wanted to set this up myself.
I already have tried doing it with 1080GTX + Samsung S8+ + GEAR VR + WebCam + RiftCat + SteamVR + Oculus + OVRdrop ...
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Is there any "concatenable" video format I can use for sequential streaming?
I'm writing a server and I have to play commercials on demand, so I'm trying to avoid re encoding video.
I assume that video containers have headers and meta data, so it would not be possible.
Is ...
user27704
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3
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How I can play an Amazon Prime Video movie with Dolby Digital Plus audio using Chrome browser in my PC?
Currently my web browser Chrome (last version 80) cannot play Dolby Digital Plus audio. I know this audio is used in other devices like Apple TV, Roku, or Amazon Fire TV for example.
According to ...
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How to prevent microphone batteries from going dead by mistake?
I have a home setup for doing video calls where I've got a Panasonic Lumix G7 with a Rode VideoMic Pro attached in its P2 jack. These are then fed into a USB capture card and connected to my computer.
...
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Streaming 720p @ 30fps over 5G wifi to multicast with FFMpeg has terribly bad quality
I am trying to stream my Intel RealSense D435 RGB camera input to a multicast address on my network.
Please note, video streaming, encoding, is very new to me - I do not understand much, when ...
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2
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How to convert ts to mp4
I have a lot of videos needed to convert from ts to mp4, how can I convert it without losing quality? I mean a lot like 30+ each week.
I did a search already but none can do it fast enough, doing it ...
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How to convert encrypted mpeg dash created with Bento4 mp4-dash.py to MP4
I have MPEG dash video files created with Bento4 mp4-dash.py.
The files have encription, but I have the MPD and the audio and video segments.
I am trying to get my original MP4 file back from those ...
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Software to host multiple camera images at once
We are looking to set-up a page of multiple camera outputs on the same website and make it available to multiple people via the web. Kind of like a security or traffic camera screen with multiple ...
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A simplistic video streaming container format
I am currently working on a screen-sharing solution for an embedded system. Basically, I need to be able to see on my PC screen what happens on the device's display. I already have a solution that ...
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Video Quality Measurement test tool
I need to measure streaming video from various different codecs and be able to tell which one is better.
What will be the best metrics to look for?
Is there a free tool that can help with this.
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Good codec for embedded system video decoding
I need to get streaming video working where a source streams video to an embedded platform. This embedded system has an ARM-Cortex-A9 without a GPU or a hardware video decoder.
Unfortunately I don't ...
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How do I prevent Wirecast from crashing? [closed]
I'm attempt to livestream from a 2016 MacBook Pro, but for some reason Wirecast (12.2.1) crashes. It doesn't matter what I'm doing, it only stays open for a couple of minutes, then it just completely ...
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ffmpeg: keyframe extraction with pts
I have an ffmpeg newbie question, I am extracting keyframes from streams using this command:
ffmpeg -skip_frame nokey -i {0} -vsync 0 -r 30 -f image2 keyframe-%09d.jpeg
However, instead of an auto-...
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Resize video while live streaming with ffmpeg
My server uses this command to stream a video (1280x544):
ffmpeg -re -i c:\ffmpeg\This.mp4 -vcodec copy -acodec copy -movflags faststart -f mpegts tcp://192.168.1.82:1234?listen
Now, I would like to ...
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Trying to sync multiple ip cameras in ffmpeg, having trouble finding the timestamps of each frames being sent
I am quite new to ffmpeg. I am wondering if it is possible to get the timestamps of a live video stream from ffmpeg. I read that as the first packet in RTP protocol is sent, it contains the NTP ...
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FFmpeg run multiple filters in parallel from C API
I successfully applied a FFmpeg filter from C API (my previous question here). I see the filters are running sequentially. Now the question is, how can I run multiple filters in parallel? If run ...
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Streaming Compression Math
Using 4:2:2, the data rate and compression are:
4k -- 11.88 Gb/s -- 339.4x
HD -- 2.38 Gb/s -- 237.6x
Assuming 4:2:0 for both, Netflix and Stadia use the same compression for HD.
To use the same ...
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Identify H.265 from the OSX Command Line?
Can anyone suggest a way to tell the difference, from the OSX command line, between .mkv files encoded with H.265 from those encoded with H.264?
Plex H.265 streams viewed from some devices (e.g. LG ...
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RTMP server using ffmpeg
I'd like to use a Teradek Cube connected to a broadcast camera to push to a server running ffmpeg with an open RTMP port, and have ffmpeg re-stream that feed to a decoder using RTMP or RTSP.
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How to convert .scc closed caption subtitles into human readable text
I'm trying to find a tool or library (possibly an open-source tool) to parse or convert .scc closed caption subtitle files to a human readable text, say .srt or xml or any text formats. Is there a ...
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looking for some advise on setting up a sports event livestream with local playback
I have recently been tasked with setting up a live stream for a Karate Tournament. Never did anything like it before but I'm the organization's technical wiz so its landed on my lap.
I'm looking for ...
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Stream from several android phones to pc
I'd like to know if there is a way to record from several android phones at the same time (at least 2) and send the data in real-time to a computer.
I don't need to watch the recording in real-time, ...
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FFmpeg with input SRT stream very low bitrate
I am trying to record an input SRT stream with ffmpeg 4.0 and even though it is recognized as a valid stream and the input stream is around 2.5Mbps, the recording is with only 80-120Kbps. I understand ...
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Best way to handle stream with ffmpeg and GPU
So in my project, I need to capture a video stream, decode the video, run the individual frames through an object detection algorithm and then play the output as a video.
This whole operation is ...
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1
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Make Youtube live streaming available to another country after end streaming
I have an youtube channel that makes a lot of live streams.
But i have different countries watching at the same hour in its own time zone.
I have a live streaming on Brazil starting 6PM and finishing ...
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Use Streaming Online Video/Live As Source In OBS Studio
Is this possible?
Use others or your own Facebook or YouTube live stream as source in obs or any broadcast software and then broadcast it on another page or channel.
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Retrieve and decode V-Chip data from an aired digital TV stream
I'm trying to retrieve and decode V-chip data from my TV streams (NTSC/ATSC digital streams). Apparently these data are embedded somewhere in the stream itself, but I have no clue how they are ...
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MPEGTS & HLS: Only second segment onwards is valid
When i use hexadecagonal audio channel layout in an mpegts container, I can receive and play back the stream fine only if I configure the hls server to allow serving the very first segment, and then ...
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DASH Live vs OnDemand profiles
I've read about dash profiles and from what I understood the difference between live and on-demand profiles are that live furthermore splits each representation into segments (which is critical for ...
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Hardware and internet requirements for 1080/30p streaming, if video source is external
I have a Panasonic X1 camera that can be connected to a pc using an acquisition card. In that case its video stream could be broadcasted using OBS or similar programs.
What I miss are the ...
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What are the free livecast/livestream services with very low latency
What are the free livecast/livestream services with very low latency (below 3 seconds) ?
I tried YouTube Live but I couldn't keep the latency below 10 seconds.
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ffmpeg - live stream into a browser video tag (localhost only)
I'm building an application, that is basically a video chat, where a user connects using WebRTC with another users (operator) browser, and should be able to talk to a third person. The WebRTC part is ...
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What is the difference between SRT and RTP?
I am trying to understand the benefits of SRT over other protocols like RTP. Haivision has a decent introductory explanation for SRT as well as a white paper, but I am unclear how it compares to RTP. ...
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MJPEG Compression
Does a video stream compressed with MJPEG have a less variable output bit rate than others.
If I make a little list, start with YUYP420, MJPEG, MPEG2, MPEG4, MPEG4_Part10HEVC(h264), SNOW? Given the ...
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MJPEG Streaming
in https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Video/pktvideoaag.html
it says:
Another type of video compression is MJPEG … the resulting video stream is larger but the packet sizes ...
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FFmpeg NVENC rtsp stream encoding freezes randomly
In some executions of the following command, ffmpeg freezes at certain time and after some minutes starts to encode the stream again. The problem don't happen always. The stream server is an avigilon ...
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resend headers NUT formats
If I do this
ffmpeg -f dshow -video_size 720x480 -framerate 29.97 -i video="Roxio Video Capture USB":audio="Line (Roxio Video Capture USB)" -c:v mjpeg -c:a pcm_s16le -map 0:v -map 0:a -f fifo -...
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GStreamer: RTMP to RTP
I want to streaming RTMP signal to RTP(multicast, mpegts container) via GStreamer. As I understand, I need to perform the following actions (please correct me if I wrong):
Demuxing RTMP stream
...
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High cpu usage with FFMPEG copying video codec from HLS
Reposted from superuser: https://superuser.com/questions/1340574/ffmpeg-copy-hls-high-cpu-usage
I have a set of batch scripts (Windows 10) to create an "instant replay" for some (11) HLS streams ...
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