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Questions tagged [streaming]

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

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FFmpeg RTSP Recording: Video Timestamp Does not Match With Recorded MP4 File Timestamp

I'm currently testing by streaming a 30 fps example flv video using a local Happy-Time RTSP server. This is the flv file i am streaming with RTSP: I recorded the video with below ffmpeg command: ...
lastpeony4's user avatar
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How to view Audio and Video of an on-going RTMP stream?

I have looked, and may be missing this question if it already has been asked. It is possible to view the video/audio (or audio alone) in a RTMP stream. The workflow goes as follows: Video Encoder ->...
Matthew Day's user avatar
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Processing h264 video/audio stream

I have separate raw audio and video frames from a camera that I'm trying to merge to a single file. Video processing I have JVT NAL sequence, H.264 video, main @ L 31 data, I had the frames separated ...
Dinamo's user avatar
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What would be the most efficient codec for streaming long videos?

I have a video streaming website that has videos with lengths of around 3 hours, and video file sizes going between 2GB and 5GB for 720p and 1080p ~30fps H.264 AAC videos. There are some outliers (...
kataba's user avatar
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What kind of video or audio encoding is causing this?

Trying to stream a video (mkv) on a Samsung 2017 TV and some videos are "lagging" / buggy. I don't know the term for this kind of issue so it's hard for me to pinpoint the problem. The video ...
Pobe's user avatar
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Extreme Latency issues when streaming RTMP with FFMPEG

at the moment some colleagues and myself are working on our end-of-school-project, which is a FPV-Drone, where we're doing the electronics and more importantly the Live-Video ourselves. For this Video-...
LyffLyff's user avatar
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FPV-Camera Input in Black and White / losses Color on conversion with FFMPEG

so we're working on our end-of-school project and it's an FPV-Drone with an Analogue Camera on it. Plan is to send the video feed to a Raspberry Pi running an RTMP-Server from where a Phone-...
LyffLyff's user avatar
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Horizontal Blanking Interval (Idling Time) optimization

I have questions regarding the time slot in-between two frames of video stream, i.e. Horizontal Blanking Interval (let's say HBI in the following), seen as Idling Time sometimes. Considering a CMOS ...
AirconBento's user avatar
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98 views

FFMPEG watermark + hls multi stream

i want to convert mp4 video into hls multi resolution (360 , 720) and add watermark image inside the output segments i did two result but missing the watermark image with the multi scale //one hls ...
Mohamed Taher's user avatar
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Strange effects in streaming with Facebook live

I'm streaming some songs with a video in Facebook live using OBS Studio and VLC player. In some particular songs, I get the strange effect that the video speeds up. I could understand that the video ...
Pablo's user avatar
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.ts included stream links gets stop after some time in exoplayer

0 I have a link that streams. When I use the link for an IPTV player like Televizo, this plays for an unlimited of time, but when I use this link to my app Exoplayer or my computer's VLC player, this ...
Dipon's user avatar
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restreaming rtsp using ffmpeg delay problem

I have ip and usb cameras. I try restream rtsp from camera using ffmpeg and mediamtx (rtsp simple server). For usb camera it works fine without any delay: mediamtx output: anton@anton:~$ ...
Anton's user avatar
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359 views

Use ffmpeg to transform rtsp stream containing B-Frames and no DTS into fragmented mp4

The goal is to play a rtsp video stream in the chrome browser using Websocket and MSE. The structure of the system looks almost identical to https://stackoverflow.com/questions/73562944/ffmpeg-live-...
Stuntman11's user avatar
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Stream an MP4 file via HTTP in a QuickTime-compatible format using FFmpeg

QuickTime supports streaming from an HTTP server, for instance try opening https://ia801307.us.archive.org/18/items/kontikipart2/kontikipart2.mp4 via File -> Open Location. However, streaming the ...
yari's user avatar
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Pink and green color on overlay logo

I ran into such a problem with hls streaming, adding filters to the overlay logo, but it was smeared with pink and green stripes. Has anyone come across this. ffmpeg -f concat -safe 0 -re -i <(for ...
Metal-Country's user avatar
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How do I display 4 different outputs with HDMI when I only have one input device?

I have one laptop with 4 different applications running on it. I would like to separate these 4 applications into each television. Each television will display one of the applications. I have bought 1 ...
Ayden Ng's user avatar
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Broadcast is interrupted while streaming udp with ffmpeg

When I start a UDP stream with ffmpeg on Debian 11 server, I'm trying to transfer this UDP stream to set-top boxes via the Stalker portal. However, when I start watching these UDP streams through VLC ...
ömer gümüş's user avatar
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Live Streaming a Live Event

TLDR: What do I need to do to set up a decent quality live stream of a live event? I'm talking gear, setup, the whole thing. I'm no stranger to video production but I'm getting an increased amount of ...
Jamie Bruce's user avatar
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71 views

What type of issues does Sony FR7 have with NDI?

What issues does Sony have, if any, with the NDI protocol? Is the image as good if it was recorded in camera? I appreciate any help you can provide. Here is a list of the items Im researching Sony ...
13months's user avatar
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ffmpeg dash output for multiple resolutions to be in the same mpd file

I am using ffmpeg to convert an input stream into multiple resolutions and creating an mpd for each resolution. So far, so good. But I am trying to find a way to create a single mpd for all ...
Rajkumar Somasundaram's user avatar
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103 views

Looping segments breaks some players

I used ffmpeg to generate some segment files that I'm using as slate to play before a program starts. Using nodejs, I'm generating a an m3u8 file that loops perfectly in HLS.js, but on some players (...
m0ngr31's user avatar
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routing rtmp ect streams via ffmpeg+python is it possible?

Is it possible to solve this problem using ffmpeg+python or in conjunction with another solution. I need a server solution, so Vmix, obs, etc are not suitable. ( eg: I have two (and/or more) streams ...
ilia FILIPPOV 's user avatar
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436 views

FFMPEG: FIFO buffer to smoothen bandwidth requirements?

I'm trying to achieve something pretty simple, but it's very hard to describe: There is a live video stream which uses h264 for it's video, and m4a for it's audio. This stream is not mine, and I have ...
Daniel's user avatar
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187 views

Intra-refresh mode in x264 encoder causes browser's player freeze

I'm building low delay live streaming with use webrtc. My server application use gstreamer and UDP as transport. It works fine except that lost UDP packets leads to too long drops. To improve user ...
misterx527's user avatar
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268 views

What video container formats are similar to MPEG-TS?

I have been looking to live video streaming where a client can join the stream of bytes and play the video automatically. I have recently found MPEG-TS which seems to work pretty well, and I noticed ...
Jpac14's user avatar
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137 views

can I change ffmpeg crop position at runtime for each frame during stream

I am trying to move an Region of Interest (RoI) around a multi-camera tiled source (which will be too big to encode for smooth viewing), and stream this "live". The RoI is externally ...
leelio's user avatar
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Real time merging of two analog video streams (coming for wireless receivers (pal/ntsc)

Combining ANALOG video feeds -- real time/low latency We fly fpv. One pilot, one second operator controlling the camera, both have analog video feeds. Pilot vtx feed: backgrond gimbal feed: we want a ...
babipsylon's user avatar
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1 answer
792 views

How do I verify that the H264 video stream is encoded with a single slice per frame?

I'm a software tester and I need to test a certain requirement for a vehicle camera that I'm not sure on how to test. As in the title it's to verify that each frame is encoded with a single slice. ...
Bivas's user avatar
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861 views

FFMPEG conversion failed at random times on live stream to youtube

I am running a bash script using ubuntu server on arm64 that live streams video and audio to youtube, heres the script below #! /bin/bash VBR="8000k" FPS="24" QUAL="superfast&...
good karma's user avatar
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I have .mpd file with video and audio data downloaded, how can I play it for offline use?

I want to ask that I have downloaded data which contains audio and video data separately like 1.mp4, 2.mp4 etc in both audio and video folders. Video/Audio folder content :- I also have it's .mpd ...
Shiven Saini's user avatar
2 votes
1 answer
1k views

Can I inject subtitles into a live stream with FFmpeg?

In my live streaming scenario I need to grab a video source and inject subtitles that I generate algorithmically during the stream (i.e. I do not know the subtitles upfront), and publish the streams ...
ilmiacs's user avatar
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2 votes
1 answer
525 views

Trouble combining audio and video streams

I have two streams, one audio and the other video. I'm trying to combine them using this command: ffmpeg -y -i audio.m3u8 -i video.m3u8 -c copy Video.mp4 I found this syntax here: https://video....
InteXX's user avatar
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1 answer
414 views

A 2 Gigabyte MP4 file on AWS S3 can be played on Browser instantly (no need to download the whole file before streaming), why? [closed]

I thought when streaming a mp4 file on a browser, the browser needs to download the whole MP4 file before playing, because the player needs to know metadata like video codec, audio codec, etc. and ...
shintaroid's user avatar
1 vote
0 answers
149 views

Low latency on SRT stream

I am new to this and wondering, how can I get the lowest latency sending an SRT stream? I can’t seem to get under six seconds. Using, latency=10000
eddie conde's user avatar
1 vote
0 answers
169 views

Video Stream Loop FFMPEG for YouTube, what is missing here?

I am using FFMPEG for streaming 24/7 mp4 video on youtube. The video is somewhere in 2 minutes, the stream starts but does not go on replay, what should I do? I am using this code: @echo off d: cd &...
5t1nger's user avatar
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234 views

Why do we still have difference between Media Time and SMPTE Time Code?

I'm implementing a web application which works with video sources with SMPTE time codes printed on it. Often the SMPTE and media time differs, my understanding of the reason based on what I have read ...
dfranca's user avatar
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1 vote
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341 views

YouTube multiple audio tracks

I have a problem. I want to do YouTube videos with two voice-overs. And i know that it is possible because Assassin's Creed: Valhala's first trailer has it. But i can't find any way how to do it. Any ...
Nit_o's user avatar
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1 vote
1 answer
127 views

YT stream key - best practice?

Like so many American workplaces, my campus moved this year to a lot of virtual interactions and events. I work in live events management, so I mostly dealt with a lot of Zooms and Blue Jeans, but one ...
Richmilnix's user avatar
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0 answers
491 views

Streaming MP4 files through HTTP without HLS or DASH?

I am building a web application that consists of a web client and a server. The web client needs to play a continuous stream of MP4 files to the user, preferably through a player like video.js. The ...
ThomasFromUganda's user avatar
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0 answers
757 views

Streamable Container for gstreamer with ngnix / RTSP on jetson nano

Im working on this project : https://www.hackster.io/jonmendenhall/jetson-nano-search-and-rescue-ai-uav-9ca547 At  some point I will need to mount my camera (waveshare ; IMX219-77IR) on  top of the ...
Marietto's user avatar
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2 votes
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1k views

HLS stream playing only when first segment is in m3u8 list

I am transcoding a live DVB-T2 HEVC stream to H264 using ffmpeg. I have decided to use the HLS (segmented) output format (because I want to play the stream in a web browser, e.g. on Android phone). I ...
tommy55's user avatar
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1k views

Infinite loop RTMP Stream Using FFmpeg or Equivalent

I'm trying to do an infinite loop RTMP stream on a CentOS 7 server and it seems like FFmpeg would be the best way to accomplish that. However, I cannot seem to coax FFmpeg into doing it despite ...
Timothy R. Butler's user avatar
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1 answer
75 views

How to broadcast on Instagram via obs?

I've seen a bunch of paid services that provide the ability to stream to Instagram via obs, but how are they arranged? How can I implement this myself?
RoyalGoose's user avatar
1 vote
4 answers
3k views

Schedule a live stream of a pre-recorded video

I have a pre-recorded (edited from dozens of sources) event that I wish to play as a "live stream", i.e. the video starts streaming at a specified time, and viewers must watch it in sequence ...
Peter Barton's user avatar
0 votes
2 answers
87 views

Mixing multiple streams into one, posible?

How you can I implement a virtual mixer from different streams. When a streamer downloads an obs, it broadcasts the stream directly to the streaming site. Is it possible to make the stream go to ...
RoyalGoose's user avatar
1 vote
0 answers
702 views

Streaming video file to YouTube Live with FFmpeg - Automatically resume after crash?

ffmpeg -re -i [FILENAME] -codec copy -f flv rtmp://a.rtmp.youtube.com/live2/[STREAM KEY] I'm able to use this command to stream a video file to YouTube Live without re-encoding. If FFmpeg crashes for ...
Ash Raj's user avatar
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2 votes
1 answer
243 views

How to skip/minimize encoding workload in OBS?

I am a beginner and I am trying to stream a local file to YouTube Live. I noted that when I start streaming on OBS using the below settings, the CPU usage is at 35-40%. Since, I am using a local file ...
abel's user avatar
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1 answer
341 views

Stream video using FFmpeg with minimum writes reads to disk

We are streaming a video using a 30 instances of docker containers hosted on Azure each instance running FFmpeg. The problem is that Azure limits the reads/writes that a container can do. Is there a ...
user33276346's user avatar
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0 answers
589 views

python for loop result in ffmpeg command

hi im trying to insert for loop results in a ffmpeg command i tried some code but all i get is first text with no sound and it glitches and freezes i tried many modification but no success i ...
madiha bout's user avatar
1 vote
0 answers
151 views

synchronization of ingested live streams on media server & playback device (obs)

I have multiple input sources for A/V streams I want to publish to a media server, and then have those stream broadcasts to be able to be sychronized for playback, for instance, as two separate media ...
Lehel the Mage's user avatar

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