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Questions tagged [streaming]

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

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1answer
14 views

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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0answers
13 views

Receiving libx264 feed and viewing it through guvcview using v4l2

I am attempting to set up a low-cost home security system. At one end of my house I have a Raspberry Pi connected to a Logitech C920 webcam running the following command: ffmpeg -re -i /dev/video0 -...
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0answers
7 views

Live Stream + Still Photography - Minimal Wireless Setup

We need to stream crowded outdoor events live. The camera will be still and shooting. We cannot use computer of any kind and no wires except a plug for a 4G Wifi Router if needed. We don't need more ...
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0answers
5 views

Terminology for 'stingers' composed of 2 different scenes?

If I have a full RGB Scene A, a full RGB Scene B, and a video file that provides a 'stinger' transition called Breaking News that wipes across the screen. How can I live composite (or implement live ...
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1answer
193 views

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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14 views

MPEG DASH Encoder for changing parameters on the fly

Is there any MPEG Dash encoder which has the feature to change the parameters on the fly? I need to change the segment duration on the fly(dynamically) without exiting the process.
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0answers
55 views

Changing start number and Period start time in MPD - ffmpeg mpeg dash encoder

I'm trying to implement MPEG dash live streaming using FFmpeg dash encoder and shaka player. Is there any way to set the start number for segments to any value other than 1? For example, chunk-...
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1answer
19 views

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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1answer
11 views

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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1answer
9 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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0answers
76 views

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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0answers
21 views

How to get total number of chunks/segments from .mpd/Dash URL using MSE in javascript

Can any one please advise how to get total number of chunks/segments from .mpd URL using Javascript Media Source Extension? Thanks,
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0answers
81 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
16 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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1answer
28 views

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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1answer
23 views

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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1answer
62 views

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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0answers
164 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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1answer
20 views

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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1answer
28 views

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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1answer
758 views

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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0answers
113 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
90 views

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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1answer
46 views

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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0answers
151 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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1answer
72 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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0answers
412 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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1answer
421 views

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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2answers
42 views

Is failure free streaming possible in todays world?

Is streaming video from one PC to a physical second PC with recording it there, without getting any frame drops, artefacts, basicly everything what the source video don't have, in todays world doable ...
2
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1answer
207 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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2answers
60 views

Live Streaming Video Camera?

Are there any video cameras (recording over 30 minutes of footage length) that have live streaming services (RTMP) built-in to the camera? I know there are a ton of cameras with YouTube (etc.) ...
0
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1answer
27 views

What do I need for facebook Audio Live streaming?

I would like to do audio live streaming on facebook. I intend to get audio feed from myself, from a guest sitting next to me, from a guest over the phone and a guest on Skype. And then stream it on ...
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1answer
40 views

How to send stream to server without any compression? [duplicate]

How to send stream to server without any compression (output should be exactly the same as the video stream being sent)? ffmpeg doesn't seem to be able to do that. It always lose something (based on ...
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1answer
96 views

How can I extract clips from a streaming video feed in near real-time?

A client wants me to write some software, perhaps ffmpeg wrapped in scripting, which will monitor a streaming video feed, and copy clips from it in near real-time, delivering them as self-contained ...
1
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1answer
29 views

Compact Camera for nighttime live streaming?

We recently adopted a pet hamster for our office, and are interested in setting up a live feed for evenings and weekends so that employees and customers can tune in to the lil guy during his most ...
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2answers
110 views

One long continuous shot, sped-up until it becomes “live”

I have an idea for a video project (that I will need to commission a studio to produce for me), but at this early stage I don't even know whether my idea is feasible. The idea involves turning (hours ...
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1answer
842 views

stream with ffserver without encode-decode

I have static file on my disk I want to stream it with ffserver . The problem is that ffserver is decode and encode my file. I know how to pass decode and encode when I save stream to file ffmpeg-i ...
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0answers
444 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 ...
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1answer
2k views

OBS Studio: desktop audio falls out of sync

I have an interesting problem: When I stream to Twitch (or record), my desktop audio goes out of sync with the video over time. The microphone is perfectly synced the whole time. Both OBS Studio and "...
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0answers
201 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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1answer
2k views

RTSP to RTMP converting fails after specific time only when IP camera enters night mode

I have bought a cheap IP camera Escam QF002 producing output in RTSP. I'd like to secure it with RTMP or HLS stream served by nginx with nginx-rtmp-module. For this I'd copy the video stream (h264) ...
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0answers
274 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 ...
0
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1answer
303 views

Digital TV SCTE 35 signal

There is a standard for Cable TV called SCTE 35 that can signal ad insertion. I need to play around with this signal. I have a ATSC receiver now, and I can record TV into .TS file format. How can I ...
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1answer
1k 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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1answer
2k views

FFmpeg text overlay add sensor values into video stream

I'am using external camera with ffmpeg to acquire underwater live stream. Now I want to add some dynamic values (text overlay) over video stream and restream that to some external provider like ...
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2answers
41 views

Android Streaming and Recording at Once

PROBLEM: Video should be streamed (Youtube) with low resolution for live view, but recorded in HD resolution for later review. RESEARCH: I can stream and record separately. But using Android camera ...
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2answers
512 views

Best codec for playing unfinished files with VLC

I am writing stream into video files with ffmpeg. Each file about 15 minutes. I want to be able to play finished and unfinished files with VLC (program using MetaVLC to be more precise). Which codec ...
4
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1answer
4k views

It is better to have more B-frames or more P-frame for video streaming?

I'm trying to re-encode (H.264) some videos from my movie library in order to put them on a NAS and stream them to a smartTV through WiFi. In order to do so, I'm using HandBrake on MacOS and – among ...
3
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2answers
38 views

If the environment being captured on a video stream becomes less complicated, does the bit rate and latency decrease?

For example, a live GoPro video is being streamed to a HDMI capture software on Windows. The live stream of an office with the lights on has a bitrate of X and a latency of Y ms. If the lights in the ...
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0answers
26 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 ...