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Sur d’autres sites (7545)

  • Launch command from controller avoid loading page

    28 juin 2019, par JoakDA

    When I launch a command from a Symfony controller, the command is executed but the GET request does not finish.

    My command launchs a node.js script that receive rtsp frames transcoded from ffmpeg and broadcast it to a websocket.

    This is a Debian 9 server, running Symfony 4, PHP 7.3.5 and Apache2.

    This is my controller show action that calls the command :

        /**
    
     * Render view to show device details.
    
     * @param Request $request
    
     * @param $deviceid
    
     * @return Response
    
     * @Route("devices/show/{deviceid}", name="device_show", methods={"GET"})
    
     * @IsGranted("ROLE_OPERATOR")
    
     */
    
    public function showAction(Request $request, $deviceid)
    
    {
    
    try{
    
        //Find device to show from system
    
        $deviceToShow = $this->repository->find($deviceid);
    

    
        if ($deviceToShow) {
    
            $this->logger->debug('Show device: . Device has been found. Delete it... Data: ' . $deviceToShow->__toString());
    

    
            //Launch video streaming commands
    
            $command = new VideoServerCommand($this->entityManager, $this->logger, $this->getParameter('kernel.project_dir'));
    
            $input = new ArrayInput(array(
    
                'secret' => str_replace(' ', '', $deviceToShow->getName()),
    
                'http_port' => 8002,
    
                'ws_port' => 8005
    
            ));
    
            $output = new BufferedOutput();
    
            $resultCode  = $command->run($input, $output);
    

    
            $content = $output->fetch();
    

    
            if ($resultCode === 0){
    
                $this->logger->info('Call Video Server Command: Ok. Video Server started successfully. Console output: ' . $content);
    
            }else{
    
                $this->logger->error('Call Video Server Command: Ko. Could not start video server. Console output: ' . $content);
    
            }
    

    
        }else{
    
            $message = $this->translator->trans('Device with identifier %deviceid% was not found.',
    
                ['%deviceid%' => $deviceid]);
    

    
            $this->addFlash('error', $message);
    

    
            $this->logger->error('Show device: Ko. Device with identifier ' . $deviceid . ' was not found.');
    
        }
    
    }catch (Exception $exception) {
    
        $message = $this->translator->trans('Error while executing action. Error detail: %detail%.',
    
            ['%detail%' => $exception->getMessage()]);
    

    
        $this->addFlash(
    
            'error', $message
    
        );
    

    
        $this->logger->critical('Show device: Ko. Exception catched. Error detail: ' . $exception->getMessage());
    
    }
    

    
    $host = explode(':', $request->getUri());
    

    
    return $this->render('device/show.html.twig', array(
    
        'baseurl' => $host[1],
    
        'secret' => str_replace(' ', '', $deviceToShow->getName()),
    
        'device' => $deviceToShow,
    
    ));
    
    }

    And this is my command code that runs the node.js script

    protected function execute(InputInterface $input, OutputInterface $output)
    
    {
    
        try {
    
            $this->logger->info('Start web socket: Setup websocket server...');
    
            $this->io = new SymfonyStyle($input, $output);
    
            $now = new \DateTime();
    
            $this->io->title('Start websocket server ' . $now->format('d-m-Y G:i:s') . '...');
    

    
            //Get input parameters
    
            $secret = $input->getArgument('secret');
    
            $tcpPort = $input->getArgument('http_port');
    
            $wsPort = $input->getArgument('ws_port');
    

    
            $output->writeln([
    
                'Video Server',// A line
    
                '============',// Another line
    
                'Starting Video Reception Socket...',// Empty line
    
            ]);
    

    
            //Call node websocket-relay.js
    
            $command = 'node ' . $this->path . '/assets/js/websocket-relay.js ' . $secret . ' ' . $tcpPort . ' ' . $wsPort;
    
            //Only want to execute for 60 seconds
    
            $nodeVideoRelay = new Process(exec($command));
    
            $nodeVideoRelay->setTimeout(60);
    
            $nodeVideoRelay->setIdleTimeout(60);
    

    
            try {
    
                $nodeVideoRelay->run();
    

    
                $this->logger->info('Start video streaming: OK. Video streaming successfully started...');
    
                $this->io->success('Start video streaming: OK. Video streaming successfully started...');
    
                $this->io->writeln($nodeVideoRelay->getOutput());
    
            } catch (ProcessTimedOutException $timedOutException) {
    
                $nodeVideoRelay->stop(3, SIGINT);
    
                $this->io->success('Start video streaming: Ok. Streaming finished.');
    
            }
    
            //}
    
        } catch (Exception $exception) {
    
            $this->logger->critical('Start video streaming: Ko. Exception catched. Error detail: ' . $exception->getMessage());
    
            $this->io->error('Start video streaming: Ko. Exception catched. Error detail: ' . $exception->getMessage());
    
        }
    
    }

    And the "websocket-relay.js" is an script got from https://github.com/phoboslab/jsmpeg/blob/master/websocket-relay.js

    The result is that the page is not loading. I have another command that process the RTSP stream using ffmpeg and send the date to a websocket.

    On the page that returns my controller action, it appears a canvas where the video will be rendered.

    I want to render the page as soon as possible and that the node.js script runs on background without blocking the main process.

    Thank you for helping me.

  • FFMPEG. Video to image sequences, duration changed

    17 avril 2020, par Robert Johnson

    The duration of the video changes from 7 minutes and 59 seconds to 7 minutes and 55 seconds.
I'm not sure what the issue is. But it's def eating up frames but i'm not sure what the issue is.

    



    My command :

    



    "ffmpeg -loglevel verbose -i '/secrets/secret.mkv' -vf fps=23.976 -qscale:v 3 -vf scale=720:540 '/secrets/lol5/SecretJpgs%05d.png' "

    



    And well that's about it.
I would really appreciate it, if someone was willing to help me out with this.
Would mean a lot !!!
Edit : I Understand there are mistakes with my command, still doesn't explain why the duration is changed. Check the duration : and then check the time of the output, 7 mins and 55 secs. I clearly lost something somewhere. To make sure this wasn't an error i went back and converted the image sequence to video and it was 7 mins and 55 secs, unlike the source. The command was perfectly fine and i even set the fps twice using different commands , but it was something else. Please i would really appreciate it , if any one of you could help me out.

    



    ffmpeg version 3.4.6-0ubuntu0.18.04.1 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
  configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
[h264 @ 0x56089f88a500] Reinit context to 1440x1088, pix_fmt: yuv420p
Input #0, matroska,webm, from '/secret/secrets/My secrets/Secret.mkv':
  Metadata:
    ENCODER         : Lavf57.71.100
  Duration: 00:07:59.08, start: 3.401000, bitrate: 5257 kb/s
    Chapter #0:0: start 0.000000, end 113.594000
    Metadata:
      title           : 00:02:23.643
    Chapter #0:1: start 113.594000, end 479.000000
    Metadata:
      title           : 00:09:54.594
    Stream #0:0(eng): Video: h264 (High), 1 reference frame, yuv420p(progressive, left), 1440x1080 (1440x1088) [SAR 1:1 DAR 4:3], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Metadata:
      BPS             : 5789491
      BPS-eng         : 5789491
      DURATION-eng    : 00:23:37.375000000
      NUMBER_OF_FRAMES: 33983
      NUMBER_OF_FRAMES-eng: 33983
      NUMBER_OF_BYTES : 1025735076
      NUMBER_OF_BYTES-eng: 1025735076
      _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-02-16 22:40:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-02-16 22:40:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      DURATION        : 00:07:59.083000000
    Stream #0:1(eng): Subtitle: ass (default) (forced)
    Metadata:
      title           : English full
      BPS             : 35
      BPS-eng         : 35
      DURATION-eng    : 00:23:34.413000000
      NUMBER_OF_FRAMES: 248
      NUMBER_OF_FRAMES-eng: 248
      NUMBER_OF_BYTES : 6265
      NUMBER_OF_BYTES-eng: 6265
      _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-02-16 22:40:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-02-16 22:40:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      ENCODER         : Lavc57.89.100 ssa
      DURATION        : 00:07:42.860000000
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> png (native))
Press [q] to stop, [?] for help
[h264 @ 0x56089f88cd00] Reinit context to 1440x1088, pix_fmt: yuv420p
[Parsed_scale_0 @ 0x56089f843ae0] w:720 h:540 flags:'bicubic' interl:0
[graph 0 input from stream 0:0 @ 0x56089f843b80] w:1440 h:1080 pixfmt:yuv420p tb:1/1000 fr:24000/1001 sar:1/1 sws_param:flags=2
[Parsed_scale_0 @ 0x56089f843ae0] w:1440 h:1080 fmt:yuv420p sar:1/1 -> w:720 h:540 fmt:rgb24 sar:1/1 flags:0x4
Output #0, image2, to '/secret/lol5/SecretJpgs%05d.png':
  Metadata:
    encoder         : Lavf57.83.100
    Chapter #0:0: start 0.000000, end 110.193000
    Metadata:
      title           : 00:02:23.643
    Chapter #0:1: start 110.193000, end 475.599000
    Metadata:
      title           : 00:09:54.594
    Stream #0:0(eng): Video: png, 1 reference frame, rgb24(left), 720x540 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc (default)
    Metadata:
      BPS             : 5789491
      BPS-eng         : 5789491
      DURATION-eng    : 00:23:37.375000000
      NUMBER_OF_FRAMES: 33983
      NUMBER_OF_FRAMES-eng: 33983
      NUMBER_OF_BYTES : 1025735076
      NUMBER_OF_BYTES-eng: 1025735076
      _STATISTICS_WRITING_APP: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v8.3.0 ('Over the Horizon') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-02-16 22:40:33
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-02-16 22:40:33
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      DURATION        : 00:07:59.083000000
      encoder         : Lavc57.107.100 png
No more output streams to write to, finishing.
frame=11405 fps= 20 q=-0.0 Lsize=N/A time=00:07:55.68 bitrate=N/A speed=0.823x    
video:4711858kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
Input file #0 (/secret/secrets/My secrets/Secret.mkv):
  Input stream #0:0 (video): 11405 packets read (314757039 bytes); 11405 frames decoded; 
  Input stream #0:1 (subtitle): 0 packets read (0 bytes); 
  Total: 11405 packets (314757039 bytes) demuxed
Output file #0 (/secret/lol5/SecretJpgs%05d.png):
  Output stream #0:0 (video): 11405 frames encoded; 11405 packets muxed (4824942145 bytes); 
  Total: 11405 packets (4824942145 bytes) muxed


    


  • Reddit api only giving video and not its audio

    25 mars 2023, par Rudra Sharma

    I am using Reddit API to play videos on my app but the audio is not playing with the video.

    


    This is my code. I am using chewie package and I have no idea if the problem is in the player or Reddit Api. Also I am new to flutter. The code plays reddit videos on my app on chewie video player.

    


      Future<void> _loadVideos() async {&#xA;    try {&#xA;      final videoUrls =&#xA;          await RedditApi.getVideoUrlsFromSubreddit(&#x27;IndianDankMemes&#x27;);&#xA;&#xA;      setState(() {&#xA;        _videoUrls.addAll(videoUrls);&#xA;      });&#xA;    } catch (e) {&#xA;      print(e);&#xA;    }&#xA;  }&#xA;&#xA;  Widget _buildVideosList() {&#xA;    return ListView.builder(&#xA;      itemCount: _videoUrls.length,&#xA;      itemBuilder: (context, index) {&#xA;        return Padding(&#xA;          padding: const EdgeInsets.all(8.0),&#xA;          child: Chewie(&#xA;            controller: ChewieController(&#xA;              videoPlayerController: VideoPlayerController.network(&#xA;                _videoUrls[index],&#xA;              ),&#xA;              aspectRatio: 9 / 16,&#xA;              autoPlay: true,&#xA;              looping: true,&#xA;              autoInitialize: true,&#xA;            ),&#xA;          ),&#xA;        );&#xA;      },&#xA;    );&#xA;  }&#xA;}&#xA;&#xA;class RedditApi {&#xA;  static const String BASE_URL = &#x27;https://www.reddit.com&#x27;;&#xA;  static const String CLIENT_ID = &#x27;my client id&#x27;;&#xA;  static const String CLIENT_SECRET = &#x27;my client secret&#x27;;&#xA;&#xA;  static Future> getVideoUrlsFromSubreddit(&#xA;      String subredditName) async {&#xA;    final response = await http.get(&#xA;        Uri.parse(&#x27;$BASE_URL/r/$subredditName/top.json?limit=10&#x27;),&#xA;        headers: {&#x27;Authorization&#x27;: &#x27;Client-ID $CLIENT_ID&#x27;});&#xA;&#xA;    if (response.statusCode == 200) {&#xA;      final jsonData = jsonDecode(response.body);&#xA;      final postsData = jsonData[&#x27;data&#x27;][&#x27;children&#x27;];&#xA;&#xA;      final videoUrls = <string>[];&#xA;&#xA;      for (var postData in postsData) {&#xA;        if (postData[&#x27;data&#x27;][&#x27;is_video&#x27;]) {&#xA;          videoUrls.add(postData[&#x27;data&#x27;][&#x27;media&#x27;][&#x27;reddit_video&#x27;]&#xA;              [&#x27;fallback_url&#x27;]);&#xA;        }&#xA;      }&#xA;&#xA;      return videoUrls;&#xA;    } else {&#xA;      throw Exception("Failed to load videos from subreddit");&#xA;    }&#xA;  }&#xA;}```&#xA;&#xA;If you are suggesting for ffmpeg please give me code as well as I said I am new to flutter. &#xA;&#xA;I have checked my client id and client secret is correct as well. Also if there is any other package I can add to make the task easy.&#xA;&#xA;</string></void>

    &#xA;

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