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• interrupting the merge video process without any explicit errors

  14 décembre 2018, par torin.dmitry

  I just trying to concatenate several videos (30 or more) in one sequence using attached commands :

  Commands :
  ffmpeg_concat_videos_cmds.txt

  Error :
  ffmpeg_error.txt

  library : bravobit or WritingMinds (result the same)

  device : Xiaomi Redmi Note 2 android 5.0.1, SoC mediatek (Actually, result the same on other devices)

  I might have thought this something wrong with my input files, but this is floating issue, and happens in 50% cases +-

  observation 1 : if I reduce amount of input files, let’s say, to 27-28, this issue is disappear. By the way, it does not depend on which files I delete, just a smaller amount. If I increase amount of files - issue will remain the same behavior. (Can a ffmpeg have any restrictions on the number of concatenating videos ?)

  observation 2 : The merge process is interrupted in a random place. And ffmpeg finishing with error (in attached file)

  I don’t understand why it’s happens absolutely random... Options doesn’t changing every iteration, input data always the same.

  regarding attached files, as for me, everything looks fine, except last part :

  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    
  
  frame=    0 fps=0.0 q=0.0 size=       0kB time=-577014:32:22.77 bitrate=  -0.0kbits/s speed=N/A    

  but no further useful information in the thrown error

• Premium Plugins now available on the Piwik Analytics Marketplace

  2 novembre 2016, par Piwik Core Team — Community, Press Releases

  We are super excited to announce the launch of three new premium plugins which are now available on the Piwik Marketplace : A/B Testing, Media Analytics, and Activity Log.

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  A/B Testing helps you grow your business by comparing different versions of your website or app to detect the most successful version that increases your sales, revenue, conversions, pageviews, and more.

  A/B tests are also known as experiments or split tests. In an A/B test you show two or more different variations to your users (visitors) and the variation that performs better wins. When a user enters the experiment, a variation will be randomly chosen and the user will see this variation for all subsequent visits. Piwik A/B testing uses advanced statistical analysis to detect which variation performs better for your conversion goals and success metrics. Even small tests can increase your sales and conversions massively !

  Get it now on the Marketplace

  Learn more here :

  • A/B Testing – Experiments (website).
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  • The A/B Testing User Guide and the A/B Testing FAQ help you getting started in running A/B tests. The A/B Testing developer guides help you embedding and implementing A/B tests into your project.

  • A/B Testing Platform for Piwik Analytics (blog post).

  

  2. Media Analytics

  Do you have videos or audio on your website, or in an app ? Media Analytics gives you powerful insights into how your audience watches your videos and listens to your audio, to ultimately maximize your success.

  Learn all about your audience. Which media your users are playing, for how long, how often, and where they dropped off ? Where are your users located around the world ? Who your audience are and what did people do before and after watching a video or listening to audio ? Many of the reports are also available in Real time, so you can gain insights and react quickly.

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  Learn more here :

  • Media Analytics (website).
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  • 
    Powerful Video Analytics and Audio Analytics for Piwik
    (blog post).

  

  3. Activity log

  Keep an eye on everything that is happening on your Piwik platform with the Activity Log plugin.

  The activity log, also known as audit log or audit trail, improves your Piwik’s security and diagnostic by showing a chronological set of entries that provides documentary evidence of activities that happened in your Piwik. It allows Piwik Super Users to quickly review the actions performed by members of your organization or clients, and also lets every user review details of their own actions.

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  Learn more in the Activity Log FAQ or see a list of all the features on the Marketplace : Activity Log plugin.

  

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  Purchasing on the Piwik Marketplace is easy and safe. Check out our guarantees :

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  Why premium plugins ?

  Researching, building, documenting, testing and maintaining quality products take years of experience and months of work. When you purchase a premium plugin from the Marketplace, you get a fully working product, with free updates for the duration of the license and you stay in full control of your analytics data. When purchasing premium plugins you also directly help the Piwik core engineers to continue to grow and innovate ! That’s because a % of earnings on premium plugin license sales directly fund new Piwik versions and more amazing features. Learn more in the FAQ : What are premium plugins ?.

  About InnoCraft

  These first three premium plugins have been designed and built with love by InnoCraft. InnoCraft is a new company founded by the creator of Piwik along with the lead engineers of Piwik based in Wellington, New Zealand. At InnoCraft, product experts, designers and engineers are passionate about crafting high quality and innovative products to help grow your business and to maximize your success.

  Learn more on the company website : www.innocraft.com

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  Is the Piwik Marketplace open to all ?

  Yes, our marketplace allows other companies and developers to sell their plugins to all Piwik Analytics users. If you are a developer or a company interested in selling your plugin(s) on our Marketplace please contact us. As a developer selling plugins, you will get paid every month for your earnings, and you will be able to see detailed reports about your sales, upload new plugin updates, respond to pre-sales enquiries, etc.

  Resources

  Learn more :

  • The Piwik.org Privacy Policy has been updated (a new “Scope” and “Contact us” sections).
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  We are looking forward to your continued support with the Piwik project as we expand and offer you more ways to maximize your success.

  Please contact the Marketplace team with any questions or feedback.

  Wishing you a warm : Happy Analytics !

• Why won’t this mp4 play in a video-js tag any longer

  18 octobre 2019, par Velocedge

  I’m using ffmpeg to convert files to MP4. I’ve made some modifications to the ffmpeg string but now it seems no matter what I use, the video won’t play in an HTML5 tag (Chrome browser). Normally, I just used "-vcodec libx264 -s 1280x720 -ar 22050". When I try to load it in the video tag, I get the following error on http://family.gotsport.net/lmw/GotSport/videoPlayer.asp?WS=1&URL=/VideoFiles/2/4_70_highlight :

  The media could not be loaded, either because the server or network failed or because the format is not supported.

  No matter what parameters I use (or don’t use), it still won’t play. However, if you just call the url directly, it will play in Chrome (http://family.gotsport.net/videofiles/2/2_70_highlight.mp4). I’m using the 7.0.0 version of video-js from their CDN (although older versions give the same result).

  Video tag looks like :

  <video class="video-js vjs-default-skin" autoplay="autoplay" controls="controls" preload="auto"> 
  
      <source src="/VideoFiles/2/4_70_highlight.mp4" type="video/mp4"></source>
  
  </video> 

  Here is the MediaInfo output from the file that won’t play :

  General
  
  Complete name                            : E:\VideoFiles\2\2_70_highlight.mp4
  
  Format                                   : MPEG-4
  
  Format profile                           : Base Media
  
  Codec ID                                 : isom (isom/iso2/avc1/mp41)
  
  File size                                : 5.87 MiB
  
  Duration                                 : 27 s 60 ms
  
  Overall bit rate                         : 1 820 kb/s
  
  Writing application                      : Lavf58.29.100
  
  
  
  Video
  
  ID                                       : 1
  
  Format                                   : AVC
  
  Format/Info                              : Advanced Video Codec
  
  Format profile                           : High@L3.1
  
  Format settings                          : CABAC / 4 Ref Frames
  
  Format settings, CABAC                   : Yes
  
  Format settings, Reference frames        : 4 frames
  
  Codec ID                                 : avc1
  
  Codec ID/Info                            : Advanced Video Coding
  
  Duration                                 : 27 s 60 ms
  
  Bit rate                                 : 1 685 kb/s
  
  Width                                    : 1 280 pixels
  
  Height                                   : 720 pixels
  
  Display aspect ratio                     : 16:9
  
  Frame rate mode                          : Constant
  
  Frame rate                               : 29.970 (29970/1000) FPS
  
  Color space                              : YUV
  
  Chroma subsampling                       : 4:2:0
  
  Bit depth                                : 8 bits
  
  Scan type                                : Progressive
  
  Bits/(Pixel*Frame)                       : 0.061
  
  Stream size                              : 5.44 MiB (93%)
  
  Writing library                          : x264 core 158 r2984 3759fcb
  
  Encoding settings                        : cabac=1 / ref=3 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / lookahead_threads=2 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=23.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
  
  Codec configuration box                  : avcC
  
  
  
  Audio
  
  ID                                       : 2
  
  Format                                   : AAC LC
  
  Format/Info                              : Advanced Audio Codec Low Complexity
  
  Codec ID                                 : mp4a-40-2
  
  Duration                                 : 27 s 22 ms
  
  Duration_LastFrame                       : -6 ms
  
  Bit rate mode                            : Constant
  
  Bit rate                                 : 128 kb/s
  
  Channel(s)                               : 2 channels
  
  Channel layout                           : L R
  
  Sampling rate                            : 22.05 kHz
  
  Frame rate                               : 21.533 FPS (1024 SPF)
  
  Compression mode                         : Lossy
  
  Stream size                              : 423 KiB (7%)
  
  Default                                  : Yes
  
  Alternate group                          : 1

  Do you see anything that would keep this format from playing in an HTML5 video tag ?