Questions tagged [streaming]

The act of transmitting media over a network for consumption in real time.

68 questions with no upvoted or accepted answers
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2k views

Getting FFMPEG to stream video+audio through RTMP

Can someone help me with this: The video streams fine but I can't hear any audio. I just hear random click sounds. Please help: ffmpeg -f video4linux2 -channel 1 -i /dev/video0 -f alsa -i plughw:2,0 ...
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309 views

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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1answer
317 views

how to simultaneously create rtsp and livehttp video streams in vlc from the same live source?

I want to simultaneously create rtsp and livehttp video streams from the same live H.264 source in cvlc. I can individually create either kind of stream just fine, and I can also create two rtsp ...
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0answers
579 views

Switching between multiple m3u8 playlist

In a live stream setup, I have 2 cameras and each one sends RTMP stream to one different application which is on my Nginx-RTMP server. On the browser I am using Videojs Hls plugin. Now my question ...
2
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1answer
159 views

I want to run two 24/7 livestreams at once, both these streams will be on Youtube, is it possible?

I want to run two 24/7 livestreams at once (both on Youtube), using an intel nuc device with the assistance of obs studio software, is this possible? If not, how can I run 2 24/7 streams at once ...
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1answer
4k views

How to automatically enrich a video stream with dynamic overlay (text, images, …)

In my company, we are currently looking for a solution to enrich a given video stream (which is being broadcasted via RTMP) from a remote webcam with some dynamic information, such as current date/...
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0answers
55 views

Realtime fulldome video splitting

I need to split fulldome video stream to several projectors for planetarium. I wrote hlsl (and glsl) shader which does exactly what I need and has some configurable parameters. It works in MPC:HC that ...
2
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0answers
326 views

Real time document straighener similar to Microsoft Office Lens or CamScanner but for video?

Office lens straightens pictures of flat, boards very, very nicely. Here's an example. Let's say I am teaching a class and I want to record what I write on the whiteboard as I explain it. Is there ...
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20 views

Is there any “concatenable” video format I can use?

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 ...
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0answers
10 views

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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0answers
22 views

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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490 views

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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1answer
59 views

How do I prevent Wirecast from crashing?

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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58 views

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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203 views

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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1answer
56 views

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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360 views

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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0answers
272 views

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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776 views

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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239 views

Understanding mpeg-dash for VoD

What programs should I use for create MPEG-DASH stream and generate manifest file [may be ffmpeg but I'm not sure that it is enough]? Can I add subtitles file after I create stream? Can I store audio ...
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352 views

Stream from ffmpeg with seeking

I have a complex ffmpeg command that generates video from several static sources. I would like to be able to seek forward and backward through the output without waiting for the whole file to be ...
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1answer
2k views

ffmpeg rtsp over http not working

I put this conf on ffserver HTTPPort 1234 RTSPPort 1235 <Stream live.h264> Format rtp Feed feed1.ffm VideoCodec libx264 VideoFrameRate 24 VideoBitRate 100 VideoSize 480x272 AVOptionVideo flags ...
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30 views

Overlays and local ad insertion for live streaming

I have an event coming up and i am only broadcasting on youtube via OBS,i want to have overlays(the person who is on stage name appearing from the bottom) and locally stored sponsored ads to the ...
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0answers
195 views

Add an overlay (video or text) to multicast tv stream

What i have 10 decoder which subscribe to private multicasted TV channels. 10 TV to display what the decoders outputs (connected though HDMI). What i want to do I would like to to add an overlay (...
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119 views

Use my own server to stream 360 videos

YouTube seems to limit the quality / resolution / data size of 360 videos that can be uploaded. If I want to serve higher quality content, what do I need to do? Requirements: Must work with mobile ...
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1k views

Generate TS files for HLS VOD streaming with ffmpeg dynamically on request

I Have huge archive of diferent (even older formáty like AVI) video footages and no place / time to reencode. I would like to implement web based browsable catalogue and want to let video play via HLS ...
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0answers
811 views

Does iOS 10 Safari support MSE (for MPEG-DASH)?

I am thinking about implementing adaptive video streaming using MPEG-DASH. I have read a lot of articles and found the information that iOS Safari doesn't support MSE, so MPEG-DASH playback is not ...
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412 views

How to clone AND downscale 2560x1080 resolution for both display and streaming

The current setup is: ______________ | Computer | |______________| DVI | | HDMI | | HDMI | | HDMI ___|____ _|_________ | Video | | 2560x1080 | |Streamer| |...
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1answer
2k views

best way to publish low latency video on ffmpeg

I am trying to publish a stream of live video that need to get to the client side in under 3 sec in latency. I am using vMix to capture a 720p/50 stream from a camera, that by virtual camera letting ...
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432 views

How actually RTMP work

I'm not a video expert but what I understand about RTMP that it work in the following manner : Video Source -> MP4 Container -> FLV Container -> RTMP Container -> Propagate through internet -> RTMP ...
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0answers
35 views

Streaming 2 local and some remote players audio issue

I am trying to set up for streaming. Here is what i want to accomplish. I will be the only one streaming video and streaming from the same computer i am playing on. I have a mixer attached to my ...
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0answers
268 views

Streaming WebM on unsupported platforms (Safari, IE, etc)

I'd like to stream WebM videos to browsers that don't support it (like Safari/IE). I have no problem in converting the video to a supportable format (like MP4), but the encoding should be on-demand, ...
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0answers
148 views

Live Video on Website from Analog cameras

I currently have 16 Analog cameras hooked up to a Vonnic DVR-K4016SE 16CH H.264 DVR System. I would like to make live streams available on my website of some of these cameras. Using the DVR is ...
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0answers
168 views

Producing and streaming to a local Network

i'm facing the challenge of creating a "TV-Show". To understand why i do this i will explain it in detail, but summarize it in the end, for the ones who just want to know what my problem is. LONG ...
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0answers
659 views

Connect a Sony HandyCam to a MacBookPro for streaming

I have a Sony HDR-CX330 HandyCam which does a good job recording low light events for us. Now I would like to stream some of these events live. The Camera has HDMI out, but I'm not sure how I get ...
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1answer
1k views

Which web server is better for HLS streaming?

I am trying to create a server that streams HLS to client. I created .m3u8 file and for receive from client use Apache web server. Some times, changing the source of video takes more than usual time......
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8 views

Mjpeg pcap example

How can achive pcap of mjpeg steram over rtp? Is there any site that contains many streaming example like : mjpeg over rtsp, h264 over rtsp, h264+ over rtsp(over tcp& over udp) ?
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18 views

Private embeddable live video streaming server

I'm looking for a third-party live video streaming service that will pull in video streams from various surveillance cameras on demand and broadcast them to multiple users. I'm specifically looking ...
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0answers
11 views

Streaming from 2 xf100's

I'm a volunteer with a charity film company and we'd like to do a live stream using 2 xf100's and a webcam. Using OBS we can get the webcam and 1 xf100 to feed through but the second one doesn't ...
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0answers
17 views

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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0answers
30 views

Real time H.264 streaming - sender to receiver

Trying to get H.264 to stream real time from one point to another point (i.e. single sender and single receiver). Is there an easy proof of concept to do this using ffmpeg. Tried multiple player ...
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0answers
10 views

HDMI CEC over COAX

I was wondering if the following scenario is possible : Room 1 - android streamer with HDMI CEC. HDMI output is connected to RG59 using a passive converter. Room 2 - from a wall RG59 coax, connected ...
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44 views

How can I reduce latency in this webcam stream from OpenCV Python?

'''capture.py''' import cv, sys cap = cv.CaptureFromCAM(0) # 0 is for /dev/video0 while True : if not cv.GrabFrame(cap) : break frame = cv.RetrieveFrame(cap) sys.stdout.write( frame....
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0answers
10 views

How can I convert Dual-link SDI to RTSP

I'm working on a project to stream my dual-link HD-SDI. I've found the dual link acquisition card, but have no idea how to convert it to RTSP. Does anyone have any idea of how i coukld proceed ? ...
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0answers
40 views

ffmpeg creates audio track that has negative start time and why?

Problem: I have a source media and used ffprobe to inspect the audio track for pts_time and the start time, and it looks fine as below ffprobe -v 0 -show_packets -select_streams audio [source_media]....
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1answer
11 views

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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0answers
40 views

Constructing playable mp4 video file from MPEG-Dash segments

I am having an unencrypted MPEG-Dash manifest file and I am trying to re-construct from the downloaded segments a playable video file. I have so far tried to concatenate the initialization file to ...
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0answers
13 views

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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0answers
19 views

FFMPEG garbled video download

I've downloaded a video using FFMPEG. The logs are here. Here's the first 10 minutes of the video that FFMPEG downloaded. As one can see, video is all garbled up. And there seems to be no audio. ...
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19 views

HTML5 player Video fast forward and backward GOP iFrame

I am looking for solution where I can do video fast forward and backward using GOP I-Frame based in HTML5 Javascript instead of seeking time based. Requirement is video should fast forward GOP i-Frame ...