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Questions tagged [streaming]

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

2
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0answers
17 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. ...
0
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0answers
20 views

Stream PNG image with alpha channel

So, what I would like to achieve is to stream a PNG image (containing alpha background) to localhost in order to use it as input to watermark the main video stream. So for example I have a ffmpeg ...
0
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0answers
23 views

FFmpeg Livestream quits after some time with End of file error

Some context: I have an Nginx server (with rtmp-module) on a Ubuntu-16.04 VM. I'm using it to receive an input rtmp stream from my PC. FFmpeg is then used in the VM to take this input and relay to ...
-1
votes
1answer
45 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 ...
1
vote
1answer
29 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 ...
1
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0answers
38 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 ...
-1
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0answers
12 views

Do you convert to HLS each time a video is streamed or can you do it once and store it?

I am planning on uploading videos (MP4 format) and using ffmpeg to convert them to HLS. I am confused about whether you convert once and store it or you have to do it each time the video is streamed ...
0
votes
1answer
25 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 -...
1
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0answers
170 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 ...
0
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0answers
37 views

Encoding a MOV to MP4 with FFMPEG (pcm_s24le & h264 to acc & h264) results in different durations (due to audio priming?)

While encoding a QuickTime MOV file to MP4 where the original file has h264 video encoding and pcm_s24le audio decoding and the target has h264 video encoding and aac audio decoding results with ...
0
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0answers
6 views

h264 real time constrained bit rate

If I specify CRF 18 and I specify QMAX 20 and I specify MAXRATE 5M what exactly happens when a big chunk of quick frame cut, fast motion, complex content gets in the input buffer? Will Q go over 20? ...
0
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0answers
243 views

Attempting to restream an MPEG-TS stream as RTSP resulting in loss of audio?

I am using ffmpeg and ffserver to restream various RTMP and MPEG-TS streams as RTSP. At first glance it appears to be working, but I am running into very weird behavior. At least on two different ...
0
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0answers
27 views

VLC MJPEG streaming falls behind source

I have a TCP streaming video source that I'm trying to publish as MJPEG using VLC. This sort of works: ffmpeg -re -fflags +genpts -stream_loop -1 -i "video.ts" -codec copy -f mpegts tcp://localhost:...
0
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0answers
99 views

My microphone always get's out of sync with my webcam Streamlabs OBS

I am having troubles with getting my microphone in sync with my webcam, I tried many different solutions and configurations and none of them works, mic starts synced with webcam and i see it in ...
2
votes
1answer
247 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 ...
0
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0answers
12 views

Software that makes us look better on video streaming?

I tried hard but I did not find any software for video that would make my skin look smoother. There are a lot of opitions for pictures but not for video. Something like automatic makeup and so on ?
-2
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2answers
39 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 ...
0
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0answers
46 views

How can I download live MPEG DASH video (while it is streamed live)?

I have this stream on my mind: http://www.praha.eu/jnp/cz/o_meste/primator_a_volene_organy/zastupitelstvo/programy_a_zapisy_zasedani/primy_prenos_zasedani_zhmp/index.html. I found out the URL of the ...
2
votes
1answer
105 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 ...
0
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0answers
29 views

No sound in saved VLC stream

I'm tried to save stream using URL and it shows that there is audio track, but I don't hear anything. I used this: vlc your_input_file_or_stream_here --sout=file/ps:go.mpg Output of ffmprobe go.mpg:...
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0answers
20 views

How to stream video with files in time slots to web apps using browser?

I have recorded video files from my CCTV cameras. Videos are updated frequently with latest footage. The files are saved in chunks of time period. I want to give access to all of the videos in single ...
0
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0answers
231 views

ffmpeg h.264 rtsp tunneled over http not working

I have completely revised this on May 21, 2018, to reflect my latest attempts to use ffmpeg to create a live, h264, 10 fps, 960x540 video-only stream using rtsp tunneled over http via a named pipe to ...
0
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2answers
27 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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0answers
14 views

How to send NewTek Tricaster video output to laptop

I am tasked with sending the video output from a NewTek Tricaster to my Apple laptop, either via HDMI or SDI, so that I can see the video output on the laptop screen and share my screen in a webinar ...
0
votes
1answer
24 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 ...
0
votes
1answer
30 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 ...
1
vote
1answer
60 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 ...
0
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0answers
14 views

What is the to do list regarding metadata of streamed videos

I am working on a web app where I stream HTML5 video. These videos are stored on Amazon S3, encoded with a mp4 1080p profile similar to what's used on Youtube. I am using the default/native HTML5 ...
1
vote
1answer
26 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 ...
7
votes
2answers
102 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 ...
0
votes
1answer
528 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 ...
1
vote
0answers
384 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 ...
1
vote
1answer
803 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 "...
1
vote
0answers
151 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 ...
0
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0answers
796 views

How can I stream FFMPEG to Youtube Live; Combine 2 HLS streams & broadcast audio as 2 tracks?

I want to stream 2 separate HLS Video streams of video, side by side & the audio as 2 separate tracks. (In theory, It doesn't need to be an elegant solution) Any Linux software to recommend for ...
0
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0answers
208 views

ffmPEG youtube streaming loop on Windows RDP

Finally I setup ffmPEG Youtube live streaming on Windows RDP. I put the video file and below .bat file in the bin folder and ran it. Streaming is successful. This is the code of .bat file. How can I ...
1
vote
1answer
1k 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) ...
1
vote
0answers
199 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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0answers
126 views

VBV Undeflow in UDP stream ffmpeg

I am living streaming my desktop via ffmpeg. My argument is ffmpeg -f dshow -i video="screen-capture-recorder" -vcodec libx264 -preset fast -pix_fmt yuv420p -tune zerolatency -r 30 -b:v 750k -minrate ...
0
votes
1answer
205 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 ...
0
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0answers
133 views

Which server work with ffmpeg to stream rtsp?

Since ffserver droped out from ffmpeg project. Which server works easily with ffmpeg to stream rtsp/mjpeg?
0
votes
0answers
114 views

filter_complex without pipe (h264)

I want to overlay 2 video file and stream them with ffserver. ffmpeg -i 1.264 -i 2.264 -filter_complex "[0][1] overlay=0:0" http://x.x.x.x But I got Error: av_interleaved_write_frame(): Broken pipe ...
0
votes
1answer
754 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 ...
0
votes
1answer
1k 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 ...
0
votes
2answers
35 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 ...
0
votes
2answers
438 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
votes
1answer
2k 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
votes
2answers
36 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 ...
0
votes
0answers
377 views

FFMPEG and Mediainfo

I have an input SD (720x576) video file in MXF format which I want to transcode into TS format. The problem is that when I check my original file with mediainfo, the latter report two heights: height ...
1
vote
0answers
23 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 ...