Doing live streaming using the FFMPEG.
I want to do endless loop on input stream.
Use the -stream_loop -1 option, but not work. How can I do it?
-re -stream_loop -1 -i "Background.mp4" -f image2pipe -i pipe:0 -filter_complex "[0:v][1:v] overlay=0:0" -acodec aac -ar 44100 -b:a 128k -pix_fmt yuv420p -profile:v main -s 1280x720 -bufsize 8000k -maxrate 4000k -deinterlace -vcodec libx264 -preset veryfast -g 30 -r 30 -f flv "URL"
My suggestion is that you use a bash script to loop the script so it repeats itself forever. To do this you create a file and name it for example: Loop.sh
Open the file and format it like this:
#!/bin/bash
while true
do
ffmpeg "Background.mp4" -f image2pipe -i pipe:0 -filter_complex "[0:v][1:v] overlay=0:0" -acodec aac -ar 44100 -b:a 128k -pix_fmt yuv420p -profile:v main -s 1280x720 -bufsize 8000k -maxrate 4000k -deinterlace -vcodec libx264 -preset veryfast -g 30 -r 30 -f flv "URL"
done
Save the file and using the terminal (assuming you're using linux or Mac) make it executable. cd into the directory and use command
sudo chmod +x Loop.sh
Now you can run the script by simply typing ./Loop.sh and it will execute forever (until you stop it).
while true to equal anything like while 1=1 or any combinations of variables that will result true.
Related
I tried to stream an mp3 file to a Telegram RTMP live using the following command:
ffmpeg -re -i 1.mp3 -c copy -f mp3 rtmps://dc4-1.rtmp.t.me/s/145158:AtyF3rrME2nHEkqGA
But I couldn't hear any sound in the stream.
You should specify the codecs explicitly.
The following is the simplest working command:
ffmpeg -i your_input -c:v libx264 -c:a aac -f flv rtmps://dcx-y.rtmp.t.me/s/YOUR_KEY
Here is a more advanced example from #tgbeta:
ffmpeg -stream_loop -1 -re -i your_input -c:v libx264 -preset veryfast -b:v 3500k -maxrate 3500k -bufsize 7000k -pix_fmt yuv420p -g 50 -c:a aac -b:a 160k -ac 2 -ar 44100 -f flv rtmps://dcx-y.rtmp.t.me/s/YOUR_KEY
Change -f mp3 by -f flv.
Example:
ffmpeg -re -i 1.mp3 -c:a copy -f flv rtmps://dc4-1.rtmp.t.me/s/145158:AtyF3rrME2nHEkqGA
Piping command does not work properly when your input is coming from a device (e.g. a webcam) so you cannot work with 2 output. I need to save the webcam stream on a file (.mkv) and, at the same time, publish it on a rtst server. I tried the following:
ffmpeg -y -f dshow -loglevel info -rtbufsize 2147.48M -i "video=my_camera" -vf hflip,rotate=PI ^
-c:v libx264 -preset fast -crf 25 -pix_fmt yuv420p ^
-minrate 2M -maxrate 4M -bufsize 3.5M -s 1920x1080 -f tee "[f=mkv]'C:\test.mkv'|[f=rtsp]rtsp://localhost:8554/mystream]"
Finally I did it. Use -flags +global_header, it is mandatory as the same -map 0:v option. Now is working perfectly.
ffmpeg -y -f dshow -loglevel info -rtbufsize 2147.48M -i "video=MY_CAMERA" ^
-flags +global_header -c:v libx264 -preset fast -crf 30 -pix_fmt yuv420p ^
-minrate 2M -maxrate 4M -bufsize 3.5M -s 1920x1080 -f tee -map 0:v "C:\out\test.mkv|[f=rtsp]rtsp://localhost:8554/mystream"
I really would appreciate all the help I can get here.
I'm trying to use the libx265 codec for recording an xorg dummy screen. The command that currently works for H264 (libx264 codec) is:
ffmpeg -y -v info -f x11grab -draw_mouse 0 -r 30 -s 1280x720
-thread_queue_size 4096 -i :0.0+0,0 -f alsa -acodec aac -strict -2 -ar 44100 -b:a 128k -af aresample=async=1 -c:v libx264 -preset fast
-profile:v main -level 3.1 -pix_fmt yuv420p -r 30 -crf 21 -g 60 -tune zerolatency -f mp4 capture.mp4
In trying to get H265 instead, I first changed the codec to libx265 like below:
ffmpeg -y -v info -f x11grab -draw_mouse 0 -r 30 -s 1280x720
-thread_queue_size 4096 -i :0.0+0,0 -f alsa -acodec aac -strict -2 -ar 44100 -b:a 128k -af aresample=async=1 -c:v libx265 -preset fast
-profile:v main -level 3.1 -pix_fmt yuv420p -r 30 -crf 21 -g 60 -tune zerolatency -f mp4 capture.mp4
But that didn't do it. Although it didn't error, it was producing a file that was playing at twice the recorded speed (i.e. twice the speed of the clip that was recorded).
Then I tried using -x265-params to specify the parameters like this:
ffmpeg -y -v info -f x11grab -draw_mouse 0 -r 30 -s 1280x720
-thread_queue_size 4096 -i :0.0+0,0 -f alsa -acodec aac -strict -2 -ar 44100 -b:a 128k -af aresample=async=1 -c:v libx264 -preset fast
-x265-params profile=main:level=3.1:crf=21 -pix_fmt yuv420p -r 30 -g 60 -tune zerolatency -f mp4 capture.mp4
And this gave me an error with the following message:
"output file #0 does not contain any stream ffmpeg"
I've tried all sorts of combinations, searched extensively online (for both how to set 265 parameters and on the output file error), but I'm not making a headway. I'm really new to all this. Can anyone please help (with the most simple terms and directions)?
THE INPUT FILES
An overlay image that has is being updated every 5 seconds by a Python script
A small MP4 file that will be looped by a concat input
An MP3 file as audio source
THE COMMAND (UPDATED)
This is the command I'm currently using to combine and stream the inputs.
ffmpeg -re -i music.mp3 -f concat -i videoincludes.txt
-r 1 -loop 1 -f image2 -i overlay.png
-c:v libx264 -c:a aac -shortest -crf 23 -pix_fmt yuv420p
-maxrate 2500k -bufsize 2500k -preset ultrafast -r 30 -g 60 -b:v 2000k -b:a 192k -ar 44100
-filter_complex "[1:v][2:v] overlay=0:0" -map 0:a -strict -2
-f flv rtmp://a.rtmp.youtube.com/live2/{key}
Als tried using -framerate 1 instead of -r 1
THE ISSUE
So the issue is that the image doesn't always update. Sometimes it does update every couple seconds at the start but it stops updating after 10-20 seconds without any difference in log output and sometimes it just doesn't update.
I can however confirm that the image is being updated by the Python script but FFmpeg is just not picking this up.
I read setting the input format of the image to image2 should allow it to update so I am not sure what is wrong or what I can do to improve it.
I'm working on the same task, and finally, I think, I found the answer.
Because streams different from each other we must reset their timestamps with setpts=PTS-STARTPTS to have them begin in the same zero timestamp . And, also, try to use image2pipe instead of image2.
This is your code with timestamp reset:
ffmpeg -re -i music.mp3 -f concat -i videoincludes.txt
-r 1 -loop 1 -f image2pipe -i overlay.png
-c:v libx264 -c:a aac -shortest -crf 23 -pix_fmt yuv420p
-maxrate 2500k -bufsize 2500k -preset ultrafast -r 30 -g 60 -b:v 2000k -b:a 192k -ar 44100
-filter_complex "[1:v]setpts=PTS-STARTPTS[out_main]; [2:v]setpts=PTS-STARTPTS[out_overlay]; [out_main][out_overlay]overlay=0:0" -map 0:a -strict -2
-f flv rtmp://a.rtmp.youtube.com/live2/{key}
p.s and I think, there is no need in -r or -framerate anymore
I am trying to stream a video loop to justin.tv using FFmpeg? I have managed to loop an image sequence and combine it with line in audio:
ffmpeg -loop 1 -i imageSequence%04d.jpg -f alsa -ac 2 -ar 22050 -ab 64k \
-i pulse -acodec adpcm_swf -r 10 -vcodec flv \
-f flv rtmp://live.justin.tv/app/<yourStreamKeyHere>
Is it possible to do this with a video file?
Definitely possible. In the recent versions of ffmpeg they have added a -stream_loop flag that allows you to loop the input as many times as required.
The gotcha is that if you don't regenerate the pts from the source, ffmpeg will drop frames after the first loop (as the timestamp will suddenly go back in time). To avoid this, you need to tell ffmpeg to generate the pts so you get an increasing timestamp between loops. This is done with the +genpts call (it has to be before the -i arg).
Here's an example ffmpeg call (replace $F with your input file). This example generates two output streams and the -stream_loop -1 argument tells ffmpeg to continuously loop the input. The output in this case is for a similar stream broadcast ingest (MetaCDN), adjust accordingly to your requirements.
ffmpeg -threads 2 -re -fflags +genpts -stream_loop -1 -i $F \
-s 640x360 -ac 2 -f flv -vcodec libx264 -profile:v baseline -b:v 600k -maxrate 600k -bufsize 600k -r 24 -ar 44100 -g 48 -c:a libfdk_aac -b:a 64k "rtmp://publish.live.metacdn.com/2050C7/dfsdfsd/lowquality_664?hello&adbe-live-event=lowquality_" \
-s 1920x1080 -ac 2 -f flv -vcodec libx264 -profile:v baseline -b:v 2000k -maxrate 2000k -bufsize 2000k -r 24 -ar 44100 -g 48 -c:a libfdk_aac -b:a 64k "rtmp://publish.live.metacdn.com/2050C7/dfsdfsd/highquality_2064?mate&adbe-live-event=highquality_"
Sinclair Media has found a solution by using the lavfi filter and appending :loop=0 to the file name :
This is untested:
ffmpeg -f lavfi -re -i movie=StreamTest.avi:loop=0 \
-acodec libfaac -b:a 64k -pix_fmt yuv420p -vcodec libx264 \
-x264opts level=41 -r 25 -profile:v baseline -b:v 1500k \
-maxrate 2000k -force_key_frames 50 -s 640×360 -map 0 -flags \
-global_header -f segment -segment_list index_1500.m3u8 \
-segment_time 10 -segment_format mpeg_ts \
-segment_list_type m3u8 segmented.ts
But it should create a local "index_1500.m3u8" file that streams the video in "StreamTest.avi".
I just reuse the Rob's answers with a few of modifications in order to provide a file to live streaming
ffmpeg -threads 2 -re -fflags +genpts -stream_loop -1 -i gvf.mp4 -c copy -f mpegts -mpegts_service_id 102 -metadata service_name=My_channel -metadata service_provider=My_Self -max_interleave_delta 0 -use_wallclock_as_timestamps 1 -flush_packets 1 "udp://233.0.0.1:1001?localaddr=10.60.4.237&pkt_size=188"