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  • 12 ways Matomo Analytics helps you to protect your visitor’s privacy

    5 mai 2020, par InnoCraft — Analytics Tips, Privacy, Security

    This post was originally published on January 11, 2017, and updated on May, 2020.

    At Matomo we think privacy matters. From the beginning, Matomo has had a strong focus on privacy and ensuring the privacy of your visitors and analytics data. 

    Here are some ways how you can ensure your users and visitors privacy by using Matomo (Piwik).

    1. Owning the data gives you power to protect user privacy

    Whether you host Matomo on-premises yourself, or whether you use Matomo’s cloud, YOU keep control of your data and nobody else. By knowing exactly where your data is stored and having full control over what happens to it, you have the power to protect your user’s privacy. No-one else can claim ownership. 

    2. GDPR compliance

    GDPR is one of the most important privacy laws to have come out in the last few years. As such, Matomo takes GDPR compliance very seriously. There’s even a 12-step checklist for you to follow to ensure your Matomo is GDPR compliant. Not only that Matomo is HIPAA, CCPA, LGPD, and PECR compliant.

    3. Data anonymization

    For better privacy by default, Matomo implements a range of data anonymization techniques. One of the main techniques is not recording the full IP address of your visitors. Some countries even require you to anonymize additional info considered Personally Identifiable Information (PII).

    To change the IP anonymization settings go to “Administration > Privacy”. 

    anonymize ip

    4. Configuring Matomo to not process personal data or personally identifiable information (PII)

    To further protect the privacy of your visitors, you can learn how to not process any personal information or PII. 

    5. Deleting old visitor logs

    The is important because visitor logs contain information all the collected raw data about every visitor and every action. You can configure Matomo to automatically delete logs from the database. When you delete old logs, only the real time and visitor log reports will no longer work for this old time period, all other aggregated reports will still work.

    For privacy reasons, we highly recommend that you keep the detailed Matomo logs for only 3 to 6 months and delete older log data. This has one other nice side effect : it will free significant database space, which will, in turn, slightly increase performance !

    6. Supporting the Do Not Track preference

    Do Not Track enables users to opt out of any tracking by websites they do not visit, including analytics services, advertising networks, and social platforms. By default, Matomo respects users preference and will not track visitors which have specified “I do not want to be tracked” in their web browsers. Get more information about DoNotTrack.

    To make sure Do Not Track is respected, go to “Administration => Privacy”.

    7. Including an Opt-Out Feature on your website or app

    By embedding the Opt-Out feature in your website, you give your visitors the possibility to opt-out of the tracking. When you go to “Administration > Privacy”, you will be able to copy and paste an HTML Iframe code to embed the opt-out feature for example into your privacy policy page or in your ‘Legal’ page. Your users can then click on a link to opt-out.

    On the Matomo Marketplace there are also some plugins available to customize the Opt-Out experience. For example AjaxOptOut and CustomOptOut.

    8. Disabling Live features

    The Real-Time, Visitor Log and Visitor Profile features give you insights into the tracked raw data by showing you details about every visitor and every action they performed. To protect the privacy of your visitors you may decide to prevent access to such features by disabling the “Live” plugin in “Administration => Plugins”. This way only aggregated reports will be shown in your Matomo.

    9. Disabling fingerprinting across websites

    By default, when one of your visitors visits several of your websites, Matomo will create a fingerprint for this user that will be different across the websites to increase the visitors’ privacy. You can make sure that this feature is disabled by going to “Administration => Config file” and verifying that the value of “enable_fingerprinting_across_websites” is set to zero.

    10. Disabling tracking cookies

    Matomo uses first-party cookies to store some information about visitors between visits. In some countries, the legislation requires websites to provide a way for users to opt-out of all tracking, in particular tracking cookies. You can disable cookies by adding one line in the Matomo Javascript code.

    11. Creating the tool of your dreams by developing your own plugins and getting access to the API

    Matomo is an open platform that lets you extend and customise the tracking ; reporting ; and user interface to your needs and to protect your visitors’ privacy the way you want or need it. Learn more in the Matomo Developer Zone. You may also have a look at our Matomo Marketplace where you can find several free and premium features to extend your Matomo.

    12. Transparency

    By default, all information and all collected data in your Matomo server are protected and nobody can access it. However, Matomo allows you to optionally make your collected data public and you can export any Matomo report including the whole dashboard to embed it into your website. This way you can show your users exactly which information you track. When you decide to make reports public, we do our best to protect privacy and automatically hide any Personally Identifiable Information such as the Visitor Profile and we make sure to not show any Visitor IP address and the Visitor ID.

    Bonus tip – A privacy policy template for you

    When you use Matomo to track your visitors, we recommend you update your Privacy Policy to explain how Matomo is used and what data it gathers. Here’s a Privacy Policy template for you to copy on your site.

    Continuous privacy improvements

    We are always interested in improving the privacy. If you miss any feature or have an idea on how to improve the privacy, please let us know.

    More information about all the Matomo features

    If you want to learn more about all the features in Matomo, have a look at our User Guides and FAQ entries.

  • C# FFMPEG : Code bugs out and stops producing media files

    24 mai 2020, par Hamez

    I've made a joke program in C# that uses ffmpeg to edit videos with different effects such as stuttering. I've finished 3 effects so far and each of them work on their own but as soon as I put one after another e.g.  fx.CrashStutter(0, 2); fx.CrashBeep(2, 2); fx.Wow(4, 2);
The code breaks and no longer produces photo/video files but once I stop debugging the file it was supposed to be processing appears. I've used a system where it loops over trying to execute a command to create a text file as a marker for when ffmpeg is done processing a file. The debug console also repeatedly says "The process tried to write to a nonexistent pipe."

    



    Here's the code for all 3 effects :

    



     public void Wow(double start, double duration)
        {
            if (fxstart == true)
            {
                //MessageBox.Show("WowFX Duration" + duration);
                string folderName = ("W_s" + start);
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("mkdir " + folderName);
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("cd " + folderName);
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("ffmpeg -ss " + start + " -t " + (duration / 6) + " -i " + source + " a.mp4");
                //wait until a.mp4 appears
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\a.txt") == false)
                {
                    /*aha got a live one!*/FXcmd.StandardInput.WriteLine(" echo a > a.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("ffmpeg -i a.mp4 -vf reverse -af areverse b.mp4");
                //wait until b.mp4 appears
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\b.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo b > b.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("ffmpeg -ss " + start + " -t " + (duration / 3) + " -i " + source + " c.mp4");
                //wait until c.mp4 appears
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\c.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo c > c.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("ffmpeg -i c.mp4 -vf reverse -af areverse d.mp4");
                //wait until d.mp4 appears
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\d.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo d > d.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                string[] concatList = { "file 'a.mp4'", "file 'b.mp4'", "file 'c.mp4'", "file 'd.mp4'" };
                //FXcmd.StandardInput.Write("del a.txt, b.txt, c.txt, d.txt");
                //System.Threading.Thread.Sleep(1000);
                System.IO.File.WriteAllLines(("FxSource(Temporary)\\" + folderName + "\\concatList.txt"), concatList);
                System.Threading.Thread.Sleep(1500);
                FXcmd.StandardInput.WriteLine("ffmpeg -f concat -i concatList.txt -c copy " + folderName + ".mp4");
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\" + "1.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo 1 > 1.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("copy " + folderName + ".mp4 ..");
                while (File.Exists("FxSource(Temporary)\\" + folderName + ".mp4") == false)
                {
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("cd ..");
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("cls");
                FXcmd.StandardInput.Flush();
            }
        }
        public void CrashStutter(int start, int duration)
        {
            if (fxstart == true)
            {
                string folderName = ("Cs_s" + start);
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("mkdir " + folderName);
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("cd " + folderName);
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("ffmpeg -ss " + start + " -t 0.1" + " -i " + source + " a.mp4");
                System.Threading.Thread.Sleep(100);
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\a.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo a > a.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("ffmpeg -stream_loop "+10*duration+" -i a.mp4 "+folderName+".mp4");
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\" + "1.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo 1 > 1.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("copy " + folderName + ".mp4 ..");
                while (File.Exists("FxSource(Temporary)\\" + folderName + ".mp4") == false)
                {
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("cd ..");
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("cls");
                FXcmd.StandardInput.Flush();
            }
        }
        public void CrashBeep(int start, int duration)
        {
            //this effect cannot last longer than 7 seconds
            double contrast = 25;
            double red = 0.75;
            if (fxstart == true)
            {
                string folderName = ("Cb_s" + start);
                FXcmd.StandardInput.WriteLine("mkdir " + folderName);
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("cd " + folderName);
                System.Threading.Thread.Sleep(100);
                /*gets stuck*/FXcmd.StandardInput.WriteLine("ffmpeg -i "+source+ " -vf fps=1 a.jpg");
                System.Threading.Thread.Sleep(100);
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\a.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo a > a.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("ffmpeg -i a.jpg -vf eq=contrast="+contrast+" b.jpg");
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\b.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo b > b.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("ffmpeg -i b.jpg -vf colorbalance=rm=" + red + " c.jpg");
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\c.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo > c.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("ffmpeg -loop 1 -i c.jpg -c:v libx264 -t "+ duration +" -pix_fmt yuv420p -vf scale=1920:1080 d.mp4");
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\d.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo d > d.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("cd ..");
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("copy beep.mp3 "+folderName+"/beep.mp3");
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("cd "+folderName);
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("ffmpeg -i beep.mp3 -ss 0 -t " + duration + " e.mp3");
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\e.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo e > e.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("ffmpeg -i d.mp4 -i e.mp3 -c copy -map 0:v:0 -map 1:a:0 " + folderName + ".mp4");
                while (File.Exists("FxSource(Temporary)\\" + folderName + "\\" + "1.txt") == false)
                {
                    FXcmd.StandardInput.WriteLine(" echo 1 > 1.txt");
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("copy " + folderName + ".mp4 ..");
                while (File.Exists("FxSource(Temporary)\\" + folderName + ".mp4") == false)
                {
                    System.Threading.Thread.Sleep(1500);
                }
                FXcmd.StandardInput.WriteLine("cd ..");
                System.Threading.Thread.Sleep(100);
                FXcmd.StandardInput.WriteLine("cls");
                FXcmd.StandardInput.Flush();
            }
        }


    



    Any suggestions ? Thanks !

    


  • Problem using FFmpeg to convert MKV with A/52 B audio (aka E-AC3) to AAC

    5 juillet 2020, par nxl4

    I've got a number of MKV files which are (per VLC) encoded with A/52 B (aka E-AC3) audio codecs. I would like to convert these to AAC, but I'm having trouble doing this with FFmpeg. The command I'm running is :

    



    ffmpeg -hwaccel auto -i original_file.mkv -y -c:v copy -c:a aac output_file.mkv


    



    The command completes without error. However, the generated file has no audio when I play it. FFmpeg's output is as follows :

    



    ffmpeg version 4.2.2-1ubuntu1 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-3ubuntu1)
  configuration: --prefix=/usr --extra-version=1ubuntu1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Guessed Channel Layout for Input Stream #0.1 : 5.1
Input #0, matroska,webm, from 'input_file.mkv':
  Metadata:
    encoder         : libebml v1.3.5 + libmatroska v1.4.8
    creation_time   : 2018-05-10T10:21:30.000000Z
  Duration: 00:42:08.15, start: 0.000000, bitrate: 3201 kb/s
    Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Metadata:
      BPS-eng         : 2559028
      DURATION-eng    : 00:42:08.151000000
      NUMBER_OF_FRAMES-eng: 60615
      NUMBER_OF_BYTES-eng: 808701337
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(eng): Audio: eac3, 48000 Hz, 5.1, fltp (default)
    Metadata:
      BPS-eng         : 640000
      DURATION-eng    : 00:42:08.096000000
      NUMBER_OF_FRAMES-eng: 79003
      NUMBER_OF_BYTES-eng: 202247680
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:2(eng): Subtitle: subrip
    Metadata:
      BPS-eng         : 79
      DURATION-eng    : 00:41:15.299000000
      NUMBER_OF_FRAMES-eng: 802
      NUMBER_OF_BYTES-eng: 24598
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:3(eng): Subtitle: subrip
    Metadata:
      title           : SDH
      BPS-eng         : 82
      DURATION-eng    : 00:41:15.299000000
      NUMBER_OF_FRAMES-eng: 844
      NUMBER_OF_BYTES-eng: 25598
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (eac3 (native) -> aac (native))
  Stream #0:2 -> #0:2 (subrip (srt) -> ass (ssa))
Press [q] to stop, [?] for help
[aac @ 0x55d0572a1740] Using a PCE to encode channel layout "5.1(side)"
Output #0, matroska, to 'output_file.mkv':
  Metadata:
    encoder         : Lavf58.29.100
    Stream #0:0: Video: h264 (High) (H264 / 0x34363248), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 23.98 tbr, 1k tbn, 1k tbc (default)
    Metadata:
      BPS-eng         : 2559028
      DURATION-eng    : 00:42:08.151000000
      NUMBER_OF_FRAMES-eng: 60615
      NUMBER_OF_BYTES-eng: 808701337
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(eng): Audio: aac (LC) ([255][0][0][0] / 0x00FF), 48000 Hz, 5.1(side), fltp, 394 kb/s (default)
    Metadata:
      BPS-eng         : 640000
      DURATION-eng    : 00:42:08.096000000
      NUMBER_OF_FRAMES-eng: 79003
      NUMBER_OF_BYTES-eng: 202247680
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      encoder         : Lavc58.54.100 aac
    Stream #0:2(eng): Subtitle: ass (ssa)
    Metadata:
      BPS-eng         : 79
      DURATION-eng    : 00:41:15.299000000
      NUMBER_OF_FRAMES-eng: 802
      NUMBER_OF_BYTES-eng: 24598
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      encoder         : Lavc58.54.100 ssa 
video:789747kB audio:121419kB subtitle:41kB other streams:0kB global headers:1kB muxing overhead: 0.142563%
[aac @ 0x55d0572a1740] Qavg: 428.063


    



    Any ideas what I'm doing wrong here ? In case it helps an ffprobe -show_streams command run on the original file shows the following :

    



    DL.DDP5.1.H.264-NTG.mkv
ffprobe version 4.2.2-1ubuntu1 Copyright (c) 2007-2019 the FFmpeg developers
  built with gcc 9 (Ubuntu 9.3.0-3ubuntu1)
  configuration: --prefix=/usr --extra-version=1ubuntu1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, matroska,webm, from 'input_file.mkv':
  Metadata:
    encoder         : libebml v1.3.5 + libmatroska v1.4.8
    creation_time   : 2018-05-10T10:21:30.000000Z
  Duration: 00:42:08.15, start: 0.000000, bitrate: 3201 kb/s
    Stream #0:0: Video: h264 (High), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Metadata:
      BPS-eng         : 2559028
      DURATION-eng    : 00:42:08.151000000
      NUMBER_OF_FRAMES-eng: 60615
      NUMBER_OF_BYTES-eng: 808701337
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(eng): Audio: eac3, 48000 Hz, 6 channels, fltp (default)
    Metadata:
      BPS-eng         : 640000
      DURATION-eng    : 00:42:08.096000000
      NUMBER_OF_FRAMES-eng: 79003
      NUMBER_OF_BYTES-eng: 202247680
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:2(eng): Subtitle: subrip
    Metadata:
      BPS-eng         : 79
      DURATION-eng    : 00:41:15.299000000
      NUMBER_OF_FRAMES-eng: 802
      NUMBER_OF_BYTES-eng: 24598
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:3(eng): Subtitle: subrip
    Metadata:
      title           : SDH
      BPS-eng         : 82
      DURATION-eng    : 00:41:15.299000000
      NUMBER_OF_FRAMES-eng: 844
      NUMBER_OF_BYTES-eng: 25598
      _STATISTICS_WRITING_APP-eng: mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
      _STATISTICS_WRITING_DATE_UTC-eng: 2018-05-10 10:21:30
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
[STREAM]
index=0
codec_name=h264
codec_long_name=H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
profile=High
codec_type=video
codec_time_base=1001/48000
codec_tag_string=[0][0][0][0]
codec_tag=0x0000
width=1280
height=720
coded_width=1280
coded_height=720
has_b_frames=2
sample_aspect_ratio=1:1
display_aspect_ratio=16:9
pix_fmt=yuv420p
level=31
color_range=tv
color_space=bt709
color_transfer=bt709
color_primaries=bt709
chroma_location=left
field_order=progressive
timecode=N/A
refs=1
is_avc=true
nal_length_size=4
id=N/A
r_frame_rate=24000/1001
avg_frame_rate=24000/1001
time_base=1/1000
start_pts=0
start_time=0.000000
duration_ts=N/A
duration=N/A
bit_rate=N/A
max_bit_rate=N/A
bits_per_raw_sample=8
nb_frames=N/A
nb_read_frames=N/A
nb_read_packets=N/A
DISPOSITION:default=1
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
TAG:BPS-eng=2559028
TAG:DURATION-eng=00:42:08.151000000
TAG:NUMBER_OF_FRAMES-eng=60615
TAG:NUMBER_OF_BYTES-eng=808701337
TAG:_STATISTICS_WRITING_APP-eng=mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
TAG:_STATISTICS_WRITING_DATE_UTC-eng=2018-05-10 10:21:30
TAG:_STATISTICS_TAGS-eng=BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
[/STREAM]
[STREAM]
index=1
codec_name=eac3
codec_long_name=ATSC A/52B (AC-3, E-AC-3)
profile=unknown
codec_type=audio
codec_time_base=1/48000
codec_tag_string=[0][0][0][0]
codec_tag=0x0000
sample_fmt=fltp
sample_rate=48000
channels=6
channel_layout=unknown
bits_per_sample=0
dmix_mode=-1
ltrt_cmixlev=-1.000000
ltrt_surmixlev=-1.000000
loro_cmixlev=-1.000000
loro_surmixlev=-1.000000
id=N/A
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/1000
start_pts=0
start_time=0.000000
duration_ts=N/A
duration=N/A
bit_rate=N/A
max_bit_rate=N/A
bits_per_raw_sample=N/A
nb_frames=N/A
nb_read_frames=N/A
nb_read_packets=N/A
DISPOSITION:default=1
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
TAG:language=eng
TAG:BPS-eng=640000
TAG:DURATION-eng=00:42:08.096000000
TAG:NUMBER_OF_FRAMES-eng=79003
TAG:NUMBER_OF_BYTES-eng=202247680
TAG:_STATISTICS_WRITING_APP-eng=mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
TAG:_STATISTICS_WRITING_DATE_UTC-eng=2018-05-10 10:21:30
TAG:_STATISTICS_TAGS-eng=BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
[/STREAM]
[STREAM]
index=2
codec_name=subrip
codec_long_name=SubRip subtitle
profile=unknown
codec_type=subtitle
codec_time_base=0/1
codec_tag_string=[0][0][0][0]
codec_tag=0x0000
width=N/A
height=N/A
id=N/A
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/1000
start_pts=0
start_time=0.000000
duration_ts=2528151
duration=2528.151000
bit_rate=N/A
max_bit_rate=N/A
bits_per_raw_sample=N/A
nb_frames=N/A
nb_read_frames=N/A
nb_read_packets=N/A
DISPOSITION:default=0
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
TAG:language=eng
TAG:BPS-eng=79
TAG:DURATION-eng=00:41:15.299000000
TAG:NUMBER_OF_FRAMES-eng=802
TAG:NUMBER_OF_BYTES-eng=24598
TAG:_STATISTICS_WRITING_APP-eng=mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
TAG:_STATISTICS_WRITING_DATE_UTC-eng=2018-05-10 10:21:30
TAG:_STATISTICS_TAGS-eng=BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
[/STREAM]
[STREAM]
index=3
codec_name=subrip
codec_long_name=SubRip subtitle
profile=unknown
codec_type=subtitle
codec_time_base=0/1
codec_tag_string=[0][0][0][0]
codec_tag=0x0000
width=N/A
height=N/A
id=N/A
r_frame_rate=0/0
avg_frame_rate=0/0
time_base=1/1000
start_pts=0
start_time=0.000000
duration_ts=2528151
duration=2528.151000
bit_rate=N/A
max_bit_rate=N/A
bits_per_raw_sample=N/A
nb_frames=N/A
nb_read_frames=N/A
nb_read_packets=N/A
DISPOSITION:default=0
DISPOSITION:dub=0
DISPOSITION:original=0
DISPOSITION:comment=0
DISPOSITION:lyrics=0
DISPOSITION:karaoke=0
DISPOSITION:forced=0
DISPOSITION:hearing_impaired=0
DISPOSITION:visual_impaired=0
DISPOSITION:clean_effects=0
DISPOSITION:attached_pic=0
DISPOSITION:timed_thumbnails=0
TAG:language=eng
TAG:title=SDH
TAG:BPS-eng=82
TAG:DURATION-eng=00:41:15.299000000
TAG:NUMBER_OF_FRAMES-eng=844
TAG:NUMBER_OF_BYTES-eng=25598
TAG:_STATISTICS_WRITING_APP-eng=mkvmerge v21.0.0 ('Tardigrades Will Inherit The Earth') 64-bit
TAG:_STATISTICS_WRITING_DATE_UTC-eng=2018-05-10 10:21:30
TAG:_STATISTICS_TAGS-eng=BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
[/STREAM]



    


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