Questions tagged [streaming]

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

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1answer
24 views

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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2answers
1k views

Connecting T6i to Elgato Game Capture HD

I recently purchased an Elgato HD for my MacBook Air, and I am fairly new at learning how everything comes together, so bear with me. I am trying to connect my Canon T6i as a capture device and I ...
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1answer
6 views

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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0answers
7 views

MPD Manifest file alternatives?

Is it possible to create a .mpd manifest file or such that streams non MPEG-DASH videos?
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1answer
52 views

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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6 views

unknown H264 color space error

I have been working on a streaming platform. I am receiving a RTSP stream, converting it to H264 via JCodec in Java Spring and sending the result via Websockets to my React App that uses JMuxer for ...
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1answer
18 views

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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0answers
27 views

RTSP always connects to camera but often cannot get an image

My software needs to connect to each surveillance camera every few hours to get a picture for analysis. I use this command to connect via RTSP ffmpeg -rtsp_transport tcp -t 10 -reorder_queue_size 10M ...
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0answers
13 views

Convert mp4 for different resolutions for playing using his

How do I transcode my mp4 video to different resolutions and create m3u8 for all for adaptive streaming
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0answers
12 views

VLC can't play back when I try to connect it to the Ngix / HLS port in Windows 10

I'm trying to do HLS streaming with NGINX + OBS on WIndows 10 following this video tutorial on youtube : I don't know what's wrong with the configuration ,but VLC ...
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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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1answer
16k views

How to set up a Livestream from SJ4000 Wifi?

I own a SJ4000 action cam with WIFI function. The latter allows it to connect the camera to my phone. I would like to livestream a sports event. Is it somehow possible to stream the video from my ...
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1answer
73 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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0answers
37 views

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 ...
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2answers
227 views

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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1answer
72 views

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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1answer
111 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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0answers
12 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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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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0answers
22 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
36 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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0answers
13 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
21 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
33 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
14 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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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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0answers
111 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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1answer
133 views

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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1answer
342 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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1answer
5k views

How to display static image if the input stream ends using ffmpeg?

I am receiving a stream over the network with the following ffmpeg command: ffmpeg -i rtmp://server:port/input.stream -f flv rtmp://server2:port/output.stream When the input stream stalls, I want to ...
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1answer
164 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
12 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
12 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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2answers
3k views

h264_omx and non-existing PPS 0 referenced

Trying to stream a webcam through rtp with a raspberry pi. Cating the SDP file on my desktop, and launching ffplay: ffplay sdp.out then streaming out this way: ffmpeg -i /dev/video0 -c:v h264_omx -...
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0answers
50 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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0answers
881 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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0answers
71 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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1answer
2k views

How to stream video with delay

I need some kind of rtsp buffer to delay video. I have a live cam and i need to start recording video on some event. But I need 10-15 seconds before that event too. Idea is to read from camera, use ...
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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
20 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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1answer
39 views

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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0answers
23 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 ...
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1answer
160 views

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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1answer
171 views

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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1answer
2k views

Stream desktop (linux) with FFMPEG to VLC

Hey guys how can I stream my desktop to vlc I did found some examples but they do not work;First I need to start ffserver with some configs example here https://www.organicdesign.co.nz/...
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0answers
69 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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0answers
13 views

How to set up Red5 server for streaming iOS app to other mobile phones and web browsers?

I would like to set up a Red5 server to broadcast from an iOS app to other mobile phones and web browser. I am new to streaming. What do I need in addition to the basic Red5 release I downloaded from ...
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1answer
67 views

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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1answer
13 views

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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1answer
19 views

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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