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• Using aler9/rtsp-simple-server, able to stream HLS from file but not from ffmpeg's stdin

  11 avril 2023, par Powercoder

  UPD : hehe, it actially works, but in chrome, not mozilla

  


  I want to display programmatically generated stream on a webpage in real time. For this I have rtsp-simple-server with RTSP and HLS enabled. I managed to publish a stream from file with command ffmpeg -re -stream_loop -1 -i file.mp4 -vcodec libx264 -f rtsp -rtsp_transport tcp rtsp://localhost:8554/mystream and see it at http://localhost:8888/mystream.

  


  But when I'm trying to do the same with python from the ffmpeg's stdin, I'm getting infinitely loading video instead of stream and browser console says "Uncaught (in promise) DOMException : The fetching process for the media resource was aborted by the user agent at the user's request". Here is my code :

  


  import random
import shlex
import subprocess
import time

import numpy as np


def main():
    width = 1024
    height = 720
    framerate = 1
    frame_duration = 1 / framerate
    cmd = shlex.split(
        f'ffmpeg'
        f' -y'
        f' -f rawvideo'
        f' -vcodec rawvideo'
        f' -s {width}x{height}'
        f' -pix_fmt bgr24'
        f' -r {framerate}'
        f' -i -'
        f' -r {framerate}'
        f' -force_key_frames expr:eq(mod(n,3),0)'
        f' -vcodec libx264'
        f' -crf 18'
        f' -preset ultrafast'
        f' -tune zerolatency'
        f' -f rtsp'
        f' -rtsp_transport tcp'
        f' rtsp://localhost:8554/mystream'
    )
    ffmpeg_process = subprocess.Popen(cmd, stdin=subprocess.PIPE)
    try:
        while True:
            image = np.full(
                (height, width, 3),
                (
                    random.randint(0, 255),
                    random.randint(0, 255),
                    random.randint(0, 255),
                ),
                dtype=np.uint8,
            )
            ffmpeg_process.stdin.write(image.tobytes())
            time.sleep(frame_duration)
    finally:
        ffmpeg_process.stdin.close()
        ffmpeg_process.wait()


if __name__ == '__main__':
    main()



  


  In the server's logs seems like no bad messages instead of single 404 status (is it just about favicon, right ?)

  


  2023/03/25 13:50:32 DEB [HLS] [conn 172.18.0.1] GET /mystream/
2023/03/25 13:50:32 DEB [HLS] [conn 172.18.0.1] [c->s] GET /mystream/ HTTP/1.1
Host: localhost:8888
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Encoding: gzip, deflate, br
Accept-Language: ru,en-US;q=0.7,en;q=0.3
Connection: keep-alive
Cookie: csrftoken=iRZDO5rsJzhh5peyyKhViN9yRslNQbuZ; Webstorm-713207de=ca4f5f1e-40e8-4bfd-97da-1be2f15f6e9e
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: cross-site
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0


2023/03/25 13:50:32 INF [HLS] [muxer mystream] created (requested by 172.18.0.1)
2023/03/25 13:50:32 INF [HLS] [muxer mystream] is converting into HLS, 1 track (H264)
2023/03/25 13:50:32 DEB [HLS] [conn 172.18.0.1] [s->c] HTTP/1.1 200 OK
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: *
Content-Type: text/html
Server: rtsp-simple-server

(body of 1240 bytes)
2023/03/25 13:50:32 DEB [HLS] [conn 172.18.0.1] GET /favicon.ico
2023/03/25 13:50:32 DEB [HLS] [conn 172.18.0.1] [c->s] GET /favicon.ico HTTP/1.1
Host: localhost:8888
Accept: image/avif,image/webp,*/*
Accept-Encoding: gzip, deflate, br
Accept-Language: ru,en-US;q=0.7,en;q=0.3
Connection: keep-alive
Cookie: csrftoken=iRZDO5rsJzhh5peyyKhViN9yRslNQbuZ; Webstorm-713207de=ca4f5f1e-40e8-4bfd-97da-1be2f15f6e9e
Referer: http://localhost:8888/mystream/
Sec-Fetch-Dest: image
Sec-Fetch-Mode: no-cors
Sec-Fetch-Site: same-origin
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0


2023/03/25 13:50:32 DEB [HLS] [conn 172.18.0.1] [s->c] HTTP/1.1 404 Not Found
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: *
Server: rtsp-simple-server


2023/03/25 13:50:32 DEB [HLS] [conn 172.18.0.1] GET /mystream/index.m3u8
2023/03/25 13:50:32 DEB [HLS] [conn 172.18.0.1] [c->s] GET /mystream/index.m3u8 HTTP/1.1
Host: localhost:8888
Accept: */*
Accept-Encoding: gzip, deflate, br
Accept-Language: ru,en-US;q=0.7,en;q=0.3
Connection: keep-alive
Cookie: csrftoken=iRZDO5rsJzhh5peyyKhViN9yRslNQbuZ; Webstorm-713207de=ca4f5f1e-40e8-4bfd-97da-1be2f15f6e9e
Referer: http://localhost:8888/mystream/
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0


2023/03/25 13:50:32 DEB [HLS] [conn 172.18.0.1] [s->c] HTTP/1.1 200 OK
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: *
Content-Type: application/x-mpegURL
Server: rtsp-simple-server

(body of 122 bytes)
2023/03/25 13:50:34 DEB [HLS] [conn 172.18.0.1] GET /mystream/index.m3u8
2023/03/25 13:50:34 DEB [HLS] [conn 172.18.0.1] [c->s] GET /mystream/index.m3u8 HTTP/1.1
Host: localhost:8888
Accept: */*
Accept-Encoding: gzip, deflate, br
Accept-Language: ru,en-US;q=0.7,en;q=0.3
Connection: keep-alive
Cookie: csrftoken=iRZDO5rsJzhh5peyyKhViN9yRslNQbuZ; Webstorm-713207de=ca4f5f1e-40e8-4bfd-97da-1be2f15f6e9e
Referer: http://localhost:8888/mystream/
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0


2023/03/25 13:50:34 DEB [HLS] [conn 172.18.0.1] [s->c] HTTP/1.1 200 OK
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: *
Content-Type: application/x-mpegURL
Server: rtsp-simple-server

(body of 122 bytes)
2023/03/25 13:50:36 DEB [HLS] [conn 172.18.0.1] GET /mystream/index.m3u8
2023/03/25 13:50:36 DEB [HLS] [conn 172.18.0.1] [c->s] GET /mystream/index.m3u8 HTTP/1.1
Host: localhost:8888
Accept: */*
Accept-Encoding: gzip, deflate, br
Accept-Language: ru,en-US;q=0.7,en;q=0.3
Connection: keep-alive
Cookie: csrftoken=iRZDO5rsJzhh5peyyKhViN9yRslNQbuZ; Webstorm-713207de=ca4f5f1e-40e8-4bfd-97da-1be2f15f6e9e
Referer: http://localhost:8888/mystream/
Sec-Fetch-Dest: empty
Sec-Fetch-Mode: cors
Sec-Fetch-Site: same-origin
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0


2023/03/25 13:50:36 DEB [HLS] [conn 172.18.0.1] [s->c] HTTP/1.1 200 OK
Access-Control-Allow-Credentials: true
Access-Control-Allow-Origin: *
Content-Type: application/x-mpegURL
Server: rtsp-simple-server

(body of 122 bytes)



  


  How do I get my stream from python visible on a webpage ?

  


• Error : ffmpeg : Failed to download resource "sqlite"

  22 février 2023, par nour

  i am trying to download ffmpeg but I am getting this error ! could anyone help ? I am using paperclip gem to add images and videos. I am getting this error on heroku when i try to add a new video Av::UnableToDetect (Unable to detect any supported library so that's why im trying to download ffmpeg. could someone help please ! thanks in advance

  


  brew install ffmpeg

  


  curl: (60) SSL certificate problem: certificate has expired
More details here: https://curl.haxx.se/docs/sslcerts.html

curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). If the default
 bundle file isn't adequate, you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.
HTTPS-proxy has similar options --proxy-cacert and --proxy-insecure.
Error: ffmpeg: Failed to download resource "sqlite"
Download failed: https://sqlite.org/2022/sqlite-autoconf-3400100.tar.gz


  


  when i add a new video to my website on heroku I got this error

  


  2023-02-22T06:23:03.207072+00:00 app[web.1]: User Load (0.8ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1  ORDER BY "users"."id" ASC LIMIT 1  [["id", 1]]
2023-02-22T06:23:03.208471+00:00 app[web.1]: Steptation Load (0.7ms)  SELECT  "steptations".* FROM "steptations" WHERE "steptations"."id" = $1 LIMIT 1  [["id", 1802]]
2023-02-22T06:23:03.210118+00:00 app[web.1]: [paperclip] Trying to link /tmp/RackMultipart20230222-2-1i28xon.mp4 to /tmp/847606d3771b12aa2d91db7647fe3a4920230222-2-165fycl.mp4
2023-02-22T06:23:03.210923+00:00 app[web.1]: [paperclip] Trying to link /tmp/847606d3771b12aa2d91db7647fe3a4920230222-2-165fycl.mp4 to /tmp/847606d3771b12aa2d91db7647fe3a4920230222-2-p6icfm.mp4
2023-02-22T06:23:03.211217+00:00 app[web.1]: Command :: file -b --mime '/tmp/847606d3771b12aa2d91db7647fe3a4920230222-2-p6icfm.mp4'
2023-02-22T06:23:03.218799+00:00 app[web.1]: [AV] Running command: if command -v avprobe 2>/dev/null; then echo "true"; else echo "false"; fi
2023-02-22T06:23:03.221000+00:00 app[web.1]: [AV] Running command: if command -v ffmpeg 2>/dev/null; then echo "true"; else echo "false"; fi
2023-02-22T06:23:03.222208+00:00 heroku[router]: at=info method=POST path= "/step_images?id=1802" host=www.mobileimplantlab.ca request_id=39f2b001-ab36-4a59-ae94-1f300d386a40 fwd="207.216.102.221" dyno=web.1 connect=0ms service=900ms status=500 bytes=234 protocol=https
2023-02-22T06:23:03.222987+00:00 app[web.1]: Completed 500 Internal Server Error in 18ms (ActiveRecord: 1.6ms)
2023-02-22T06:23:03.223510+00:00 app[web.1]: 
2023-02-22T06:23:03.223511+00:00 app[web.1]: Av::UnableToDetect (Unable to detect any supported library):
2023-02-22T06:23:03.223511+00:00 app[web.1]: app/controllers/step_images_controller.rb:15:in `create'
2023-02-22T06:23:03.223512+00:00 app[web.1]: 
2023-02-22T06:23:03.223512+00:00 app[web.1]: 
2023-02-22T06:23:14.356278+00:00 app[web.1]: Started POST "/step_images?id=1802" for 207.216.102.221 at 2023-02-22 06:23:14 +0000
2023-02-22T06:23:14.357993+00:00 app[web.1]: Processing by StepImagesController#create as HTML
2023-02-22T06:23:14.358067+00:00 app[web.1]: Parameters: {"utf8"=>"✓", "authenticity_token"=>"PgRtPGgyOSPP8lQlbf9fAgOSZre/XlYcKBKJhe81oOz9Ge81GZZzEfc4Xcnz0zzZ35S7PpsfKOse3Q73mxhjEA==", "step_image"=>{"product_id"=>"4", "text"=>"", "text2"=>"", "text3"=>"", "text4"=>"", "text5"=>"", "video"=>#, @original_filename="IMG_2826.mp4", @content_type="video/mp4", @headers="Content-Disposition: form-data; name=\"step_image[video]\"; filename=\"IMG_2826.mp4\"\r\nContent-Type: video/mp4\r\n">, "text6"=>"test", "user_id"=>"73", "case_id"=>"311", "step_id"=>"3"}, "commit"=>"Submit", "id"=>"1802"}
2023-02-22T06:23:14.359735+00:00 app[web.1]: User Load (0.8ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1  ORDER BY "users"."id" ASC LIMIT 1  [["id", 1]]
2023-02-22T06:23:14.360954+00:00 app[web.1]: Steptation Load (0.7ms)  SELECT  "steptations".* FROM "steptations" WHERE "steptations"."id" = $1 LIMIT 1  [["id", 1802]]
2023-02-22T06:23:14.362132+00:00 app[web.1]: [paperclip] Trying to link /tmp/RackMultipart20230222-2-1stq4d4.mp4 to /tmp/847606d3771b12aa2d91db7647fe3a4920230222-2-1jq0dqp.mp4
2023-02-22T06:23:14.362719+00:00 app[web.1]: [paperclip] Trying to link /tmp/847606d3771b12aa2d91db7647fe3a4920230222-2-1jq0dqp.mp4 to /tmp/847606d3771b12aa2d91db7647fe3a4920230222-2-9hfi7z.mp4
2023-02-22T06:23:14.362932+00:00 app[web.1]: Command :: file -b --mime '/tmp/847606d3771b12aa2d91db7647fe3a4920230222-2-9hfi7z.mp4'
2023-02-22T06:23:14.370045+00:00 app[web.1]: [AV] Running command: if command -v avprobe 2>/dev/null; then echo "true"; else echo "false"; fi
2023-02-22T06:23:14.372073+00:00 app[web.1]: [AV] Running command: if command -v ffmpeg 2>/dev/null; then echo "true"; else echo "false"; fi
2023-02-22T06:23:14.374070+00:00 app[web.1]: Completed 500 Internal Server Error in 16ms (ActiveRecord: 1.5ms)
2023-02-22T06:23:14.374254+00:00 heroku[router]: at=info method=POST path= "/step_images?id=1802" host=www.mobileimplantlab.ca request_id=4a0702a2-8d14-454a-9f1f-edf154e140fc fwd="207.216.102.221" dyno=web.1 connect=0ms service=267ms status=500 bytes=234 protocol=https
2023-02-22T06:23:14.374720+00:00 app[web.1]: 
2023-02-22T06:23:14.374721+00:00 app[web.1]: Av::UnableToDetect (Unable to detect any supported library):


  


  in my gem file

  


  source 'https://rubygems.org'


# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.2.11.1'
# Use postgresql as the database for Active Record
gem 'pg', '~> 0.20.0'
# Use SCSS for stylesheets
gem 'sass-rails', '~> 5.0'
# Use Uglifier as compressor for JavaScript assets
gem 'uglifier', '>= 1.3.0'
# Use CoffeeScript for .coffee assets and views
gem 'coffee-rails', '~> 4.1.0'
# See https://github.com/rails/execjs#readme for more supported runtimes
# gem 'therubyracer', platforms: :ruby
gem 'pry', '~> 0.13.1'
# Use jquery as the JavaScript library
gem 'jquery-rails'
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks
gem 'turbolinks'
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
gem 'jbuilder', '~> 2.0'
# bundle exec rake doc:rails generates the API under doc/api.
gem 'sdoc', '~> 0.4.0', group: :doc

# Use ActiveModel has_secure_password
# gem 'bcrypt', '~> 3.1.7'

# Use Unicorn as the app server
# gem 'unicorn'

# Use Capistrano for deployment
# gem 'capistrano-rails', group: :development


group :development do
  # Access an IRB console on exception pages or by using <%= console %> in views
  gem 'web-console', '~> 2.0'

  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  gem 'spring'
end

gem 'devise'
group :development, :test do
  gem "interactive_editor"
  gem "hirb"
  gem "awesome_print"
  gem 'byebug'
end
group :production do
  gem 'rails_12factor'
  gem 'puma'
end
gem 'mail_form'
gem 'font-awesome-sass', '~> 5.12.0'

gem 'bootsnap', '>= 1.1.0', require: false
gem 'bootstrap-sass', '~>3.2.0'

gem 'paperclip'

gem 'aws-sdk-s3'
gem 'aws-sdk', '< 2.0'

gem 'thor', '0.19.1'
gem 'omniauth-google-oauth2'
gem "recaptcha", require: "recaptcha/rails"
gem 'friendly_id', '~> 5.4.0'

gem 'activeadmin'

gem 'cocoon'
gem 'bigdecimal', '1.3.5'
gem 'bundler', '1.17.3'
gem 'paperclip-av-transcoder'
gem "paperclip-ffmpeg", "~> 1.2.0"
gem "will_paginate", "~> 3.0.4" 
gem 'rails-erd'
gem 'rails_autolink'

gem 'rails-erd', group: :development


  


  in the model

  


    has_attached_file :video, :styles => {
     :medium => { :geometry => "500x500", :format => 'jpg' },
     :thumb => { :geometry => "100x100", :format => 'jpg' }
  }, :processors => [:transcoder]

  validates_attachment_content_type :video,
    :content_type => [
      "video/mp4", 
      "video/quicktime",
      "video/3gpp",
      "video/x-ms-wmv",
      "video/mov",
      "video/flv",
      
      ]


  


• ffmgep stucks while merging two streams at input 0 [closed]

  3 février 2024, par Robi Tagore

  I tried to merge two streams downloaded before, I was using ffmpeg to combine them. I could use the path directly, but I felt it would'nt always be, so I read the steams, after I combine them,
everytime I run the code it std errs the following output, and creates merged.mp4 with 0 bytes, help me find the mistake

  


  code

  


  
const {spawn} = require("child_process");
const fs = require("fs")


var audio = fs.createReadStream("audio.aac")
var video = fs.createReadStream("video.mp4")



var ffprocess = spawn("ffmpeg",[
    '-y',
    '-i', 'pipe:0', 
    '-i', 'pipe:1',  
    '-c', 'copy',  
    '-f', 'mp4',    
    'pipe:2',   
])

video.pipe(ffprocess.stdin)
audio.pipe(ffprocess.stdin)


ffprocess.stdout.on("data")


ffprocess.stderr.on("data", (data) => {
    console.log(`ffmpeg stderr ${data}`);
});
  
ffprocess.on("close", (code) => {
if (code === 0) {
    console.log("FFmpeg process exited successfully");
} else {
    console.error(`FFmpeg process exited with code ${code}`);
}
});


  


  output,

  


  ffmpeg stderr ffmpeg version 6.0-6ubuntu1 Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 13 (Ubuntu 13.2.0-2ubuntu1)
  configuration: --prefix=/usr --extra-version=6ubuntu1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librist --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --disable-sndio --enable-libjxl --enable-pocketsphinx --enable-librsvg --enable-libvpl --disable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-libplacebo --enable-librav1e --enable-shared
  libavutil      58.  2.100 / 58.  2.100

ffmpeg stderr   libavcodec     60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter     9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample   4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100

ffmpeg stderr Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'pipe:0':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2023-07-31T07:06:25.000000Z
  Duration: 00:00:34.64, start: 0.000000, bitrate: N/A

ffmpeg stderr   Stream #0:0[0x1](und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 640x360 [SAR 1:1 DAR 16:9], 334 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
    Metadata:
      creation_time   : 2023-07-31T07:06:25.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 07/31/2023.
      vendor_id       : [0][0][0][0]
  Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
    Metadata:
      creation_time   : 2023-07-31T07:06:25.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 07/31/2023.
      vendor_id       : [0][0][0][0]



  


  audio.aac video.mp4 sits in the same directory

  


  I have trying changing the -c flag and the other ones, but it somehow stucks and program dosent end up

  


  I have trying changing the -c flag and the other ones, but it somehow stucks and program dosent end up