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  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (6060)

  • How to add new pages and menu items to Piwik – Introducing the Piwik Platform

    11 septembre 2014, par Thomas Steur — Development

    This is the next post of our blog series where we introduce the capabilities of the Piwik platform (our previous post was How to create a widget). This time you’ll learn how to extend Piwik by adding new pages and menu items. For this tutorial you will need to have basic knowledge of PHP and optionally of Twig which is the template engine we use.

    What can be displayed in a page ?

    To make it short : You can display any corporate related content, key metrics, news, help pages, custom reports, contact details, information about your server, forms to manage any data and anything else.

    Getting started

    In this series of posts, we assume that you have already set up your development environment. If not, visit the Piwik Developer Zone where you’ll find the tutorial Setting up Piwik.

    To summarize the things you have to do to get setup :

    • Install Piwik (for instance via git).
    • Activate the developer mode : ./console development:enable --full.
    • Generate a plugin : ./console generate:plugin --name="MyControllerPlugin". There should now be a folder plugins/MyControllerPlugin.
    • And activate the created plugin under Settings => Plugins.

    Let’s start creating a page

    We start by using the Piwik Console to create a new page :

    ./console generate:controller

    The command will ask you to enter the name of the plugin the controller should belong to. I will simply use the above chosen plugin name “MyControllerPlugin”. There should now be two files plugins/MyControllerPlugin/Controller.php and plugins/MyControllerPlugin/templates/index.twig which both already contain an example to get you started easily :

    Controller.php

    1. class Controller extends \Piwik\Plugin\Controller
      2. 

    2. {
      3. 

    3.     public function index()
      4. 

    4.     {
      5. 

    5.         return $this->renderTemplate('index', array(
      6. 

    6.              'answerToLife' => 42
      7. 

    7.         ));
      8. 

    8.     }
      9. 

    9. }
      10. 

    Télécharger

    and templates/index.twig

    1. {% extends 'dashboard.twig' %}
      2. 

    2.  
      3. 

    3. {% block content %}
      4. 

    4.     <strong>Hello world!</strong>
      5. 

    5.     <br/>
      6. 

    6.  
      7. 

    7.     The answer to life is {{ answerToLife }}
      8. 

    8. {% endblock %}
      9. 

    Télécharger

    Note : If you are generating the Controller before Piwik 2.7.0 the example will look slightly different.

    The controller action index assigns the view variable answerToLife to the view and renders the Twig template templates/index.twig. Any variable assigned this way can then be used in the view using for example {{ answerToLife }}.

    Using a Twig template to generate the content of your page is actually optional : instead feel free to generate any content as desired and return a string in your controller action.

    As the above template index.twig is extending the dashboard template the Logo as well as the top menu will automatically appear on top of your content which is defined within the block content.

    Rendered page content

    How to display the page within the admin

    If you would like to add the admin menu on the left you have to modify the following parts :

    • Extend \Piwik\Plugin\ControllerAdmin instead of \Piwik\Plugin\Controller in the file Controller.php. In a future version of Piwik this step will be no longer neccessary, see #6151
    • Extend the template admin.twig instead of dashboard.twig
    • Define a headline using an H2-element
    1. {% extends 'admin.twig' %}
      2. 

    2.  
      3. 

    3. {% block content %}
      4. 

    4.     <h2>Hello world!</h2>
      5. 

    5.     <br/>
      6. 

    6.  
      7. 

    7.     The answer to life is {{ answerToLife }}
      8. 

    8. {% endblock %}
      9. 

    Télécharger

    Note : Often one needs to add a page to the admin to make a plugin configurable. We have a unified solution for this using the Settings API.

    Admin page

    How to display a blank page

    If you would like to generate a blank page that shows only your content the template should contain only your markup as follows :

    1. <strong>Hello world!</strong>
      2. 

    2. <br/>
      3. 

    3.  
      4. 

    4. The answer to life is {{ answerToLife }}
      5. 

    Télécharger

    Predefined variables, UI components, security and accessing query parameters

    In this blog post we only cover the basics to get you started. We highly recommend to read the MVC guide on our developer pages which covers some of those advanced topics. For instance you might be wondering how to securely access $_GET or $_POST parameters, you might want to restrict the content of your page depending on a user role, and much more.

    If you would like to know how to make use of JavaScript, CSS and Less have a look at our Working with Piwik’s UI guide.

    Note : How to include existing UI components such as a site selector or a date selector will be covered in a future blog post. Also, there are default variables assigned to the view depending on the context. A list of those variables that may or may not be defined is unfortunately not available yet but we will catch up on this.

    Let’s add a menu item to make the page accessible

    So far you have created a page but you can still not access it. Therefore we need to add a menu item to one of the Piwik menus. We start by using the Piwik Console to create a menu template :

    ./console generate:menu

    The command will ask you to enter the name of the plugin the menu should belong to. I will use again the above chosen plugin name “MyControllerPlugin”. There should now be a file plugins/MyControllerPlugin/Menu.php which contains an example to get you started easily :

    Menu.php

    1. class Menu extends \Piwik\Plugin\Menu
      2. 

    2. {
      3. 

    3.     public function configureUserMenu(MenuUser $menu)
      4. 

    4.     {
      5. 

    5.         // reuse an existing category. 
      6. 

    6.         $menu->addManageItem('My User Item', $this->urlForAction('showList'));
      7. 

    7.  
      8. 

    8.         // or create a custom category
      9. 

    9.         $menu->addItem('My Custom Category', 'My User Item', $this->urlForDefaultAction());
      10. 

    10.     }
      11. 

    11. }
      12. 

    Télécharger

    This is only a part of the generated template since all the examples of the different menus are similar. You can add items to four menus :

    • configureReportingMenu To add a new item to the reporting menu which includes all the reports like “Actions” and “Visitors”.
    • configureAdminMenu To add a new item to the admin menu which includes items like “User settings” and “Websites”.
    • configureTopMenu To add a new item to the top menu which includes items like “All Websites” and “Logout”.
    • configureUserMenu To add a new item to the user menu which is accessible when clicking on the username on the top right.

    In this blog post we will add a new item to the user menu and to do so we adjust the generated template like this :

    1. class Menu extends \Piwik\Plugin\Menu
      2. 

    2. {
      3. 

    3.     public function configureUserMenu(MenuUser $menu)
      4. 

    4.     {
      5. 

    5.         $menu->addManageItem('My User Item', $this->urlForAction($method = 'index'), $orderId = 30);
      6. 

    6.     }
      7. 

    7. }
      8. 

    Télécharger

    That’s it. This will add a menu item named “My User Item” to the “Manage” section of the user menu. When a user chooses the menu item, the “index” method of your controller will be executed and your previously created page will be first rendered and then displayed. Optionally, you can define an order to influence the position of the menu item within the manage section. Following this example you can add an item to any menu for any action. I think you get the point !

    User menu

    Note : In Piwik 2.6.0 and before the above example would look like this :

    1. class Menu extends \Piwik\Plugin\Menu
      2. 

    2. {
      3. 

    3.     public function configureUserMenu(MenuUser $menu)
      4. 

    4.     {
      5. 

    5.         $menu->addManageItem('My User Item', array($module = 'MyControllerPlugin', $action = 'index'), $orderId = 30);
      6. 

    6.     }
      7. 

    7. }
      8. 

    Télécharger

    How to test a page

    After you have created your page you are surely wondering how to test it. A controller should be usually very simple as it is only the connector between model and view. Therefore, we do usually not create unit or integration test for controllers and for the view less than ever. Instead we would create a UI test that takes a screenshot of your page and compares it with an expected screenshot. Luckily, there is already a section UI tests in our Automated tests guide.

    Publishing your Plugin on the Marketplace

    In case you want to share your page with other Piwik users you can do this by pushing your plugin to a public GitHub repository and creating a tag. Easy as that. Read more about how to distribute a plugin.

    Advanced features

    Isn’t it easy to create a page ? We never even created a file ! Of course, based on our API design principle “The complexity of our API should never exceed the complexity of your use case.” you can accomplish more if you want : You can make use of Vanilla JavaScript, jQuery, AngularJS, Less and CSS, you can reuse UI components, you can access query parameters and much more.

    Would you like to know more about this ? Go to our MVC (Model-View-Controller) and Working with Piwik’s UI guides in the Piwik Developer Zone.

    If you have any feedback regarding our APIs or our guides in the Developer Zone feel free to send it to us.

  • Filter complex apply on ffmpeg for android outputs low quality video

    17 septembre 2014, par Alin

    I finally managed to build ffmpeg as detailed in here : https://enoent.fr/blog/2014/06/20/compile-ffmpeg-for-android/ and in the end, I have a ffmpeg library which accepts command arguments.

    I am trying to apply a watermark image over the video so for it I am using preparing this ffmpeg command :

    ffmpeg -i input.avi -i logo.png -filter_complex 'overlay=10:main_h-overlay_h-10' output.avi

    I have first tried it on windows using ffmpeg.exe and the result was as expected.

    I have tried it on android using the compiled android and the output is as follows :

    09-17 01:16:57.156: I/Videokit(1229): Loading native library compiled at 22:33:10 Sep 15 2014
    
09-17 01:16:57.156: I/Videokit(1229): Option: ffmpeg
    
09-17 01:16:57.156: I/Videokit(1229): Option: -loglevel
    
09-17 01:16:57.156: I/Videokit(1229): Option: debug
    
09-17 01:16:57.156: I/Videokit(1229): Option: -i
    
09-17 01:16:57.156: I/Videokit(1229): Option: /storage/emulated/0/mute.mp4
    
09-17 01:16:57.156: I/Videokit(1229): Option: -i
    
09-17 01:16:57.156: I/Videokit(1229): Option: /storage/emulated/0/logo.png
    
09-17 01:16:57.156: I/Videokit(1229): Option: -filter_complex
    
09-17 01:16:57.156: I/Videokit(1229): Option: overlay=10:main_h-overlay_h-10
    
09-17 01:16:57.156: I/Videokit(1229): Option: /storage/emulated/0/outVid.mp4
    
09-17 01:16:57.156: I/Videokit(1229): Running main
    
09-17 01:16:57.163: D/Videokit(1229): Splitting the commandline.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '-loglevel' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as option 'loglevel' (set logging level) with argument 'debug'.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '-i' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as input file with argument '/storage/emulated/0/mute.mp4'.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '-i' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as input file with argument '/storage/emulated/0/logo.png'.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '-filter_complex' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as option 'filter_complex' (create a complex filtergraph) with argument 'overlay=10:main_h-overlay_h-10'.
    
09-17 01:16:57.163: D/Videokit(1229): Reading option '/storage/emulated/0/outVid.mp4' ...
    
09-17 01:16:57.163: D/Videokit(1229):  matched as output file.
    
09-17 01:16:57.163: D/Videokit(1229): Finished splitting the commandline.
    
09-17 01:16:57.163: D/Videokit(1229): Parsing a group of options: global .
    
09-17 01:16:57.163: D/Videokit(1229): Applying option loglevel (set logging level) with argument debug.
    
09-17 01:16:57.163: D/Videokit(1229): Applying option filter_complex (create a complex filtergraph) with argument overlay=10:main_h-overlay_h-10.
    
09-17 01:16:57.163: D/Videokit(1229): Successfully parsed a group of options.
    
09-17 01:16:57.163: D/Videokit(1229): Parsing a group of options: input file /storage/emulated/0/mute.mp4.
    
09-17 01:16:57.163: D/Videokit(1229): Successfully parsed a group of options.
    
09-17 01:16:57.163: D/Videokit(1229): Opening an input file: /storage/emulated/0/mute.mp4.
    
09-17 01:16:57.296: D/Videokit(1229): Successfully opened the file.
    
09-17 01:16:57.296: D/Videokit(1229): Parsing a group of options: input file /storage/emulated/0/logo.png.
    
09-17 01:16:57.296: D/Videokit(1229): Successfully parsed a group of options.
    
09-17 01:16:57.296: D/Videokit(1229): Opening an input file: /storage/emulated/0/logo.png.
    
09-17 01:16:57.304: D/Videokit(1229): Successfully opened the file.
    
09-17 01:16:57.304: D/Videokit(1229): Parsing a group of options: output file /storage/emulated/0/outVid.mp4.
    
09-17 01:16:57.304: D/Videokit(1229): Successfully parsed a group of options.
    
09-17 01:16:57.304: D/Videokit(1229): Opening an output file: /storage/emulated/0/outVid.mp4.
    
09-17 01:16:57.312: D/Videokit(1229): Successfully opened the file.
    
09-17 01:16:57.351: I/Videokit(1229): Stream mapping:
    
09-17 01:16:57.351: I/Videokit(1229):   Stream #0:0 (h264) -> overlay:main
    
09-17 01:16:57.351: I/Videokit(1229):   Stream #1:0 (png) -> overlay:overlay
    
09-17 01:16:57.351: I/Videokit(1229):   overlay
    
09-17 01:16:57.351: I/Videokit(1229):  -> Stream #0:0 (mpeg4)
    
09-17 01:16:57.351: I/Videokit(1229): Press [q] to stop, [?] for help
    
09-17 01:16:57.890: I/Videokit(1229): frame=   12 fps=0.0 q=24.3 size=     113kB time=00:00:00.40 bitrate=2314.9kbits/s    
    
09-17 01:16:58.413: I/Videokit(1229): frame=   26 fps= 25 q=31.0 size=     154kB time=00:00:00.86 bitrate=1455.1kbits/s    
    
09-17 01:16:58.953: I/Videokit(1229): frame=   38 fps= 24 q=31.0 size=     180kB time=00:00:01.26 bitrate=1165.0kbits/s    
    
09-17 01:17:00.085: I/Videokit(1229): frame=   50 fps= 24 q=31.0 size=     205kB time=00:00:01.66 bitrate=1006.8kbits/s    
    
09-17 01:17:00.163: I/Videokit(1229): frame=   51 fps= 19 q=31.0 size=     206kB time=00:00:01.70 bitrate= 992.8kbits/s    
    
09-17 01:17:00.632: I/Videokit(1229): frame=   64 fps= 20 q=31.0 size=     230kB time=00:00:02.13 bitrate= 883.9kbits/s    
    
09-17 01:17:01.156: I/Videokit(1229): frame=   78 fps= 21 q=31.0 size=     254kB time=00:00:02.60 bitrate= 798.5kbits/s    
    
09-17 01:17:01.679: I/Videokit(1229): frame=   92 fps= 21 q=31.0 size=     275kB time=00:00:03.06 bitrate= 734.7kbits/s    
    
09-17 01:17:02.179: I/Videokit(1229): frame=  106 fps= 22 q=31.0 size=     296kB time=00:00:03.53 bitrate= 684.8kbits/s    
    
09-17 01:17:02.726: I/Videokit(1229): frame=  121 fps= 23 q=24.8 size=     325kB time=00:00:04.03 bitrate= 660.1kbits/s    
    
09-17 01:17:03.249: I/Videokit(1229): frame=  134 fps= 23 q=31.0 size=     344kB time=00:00:04.47 bitrate= 629.8kbits/s    
    
09-17 01:17:03.781: I/Videokit(1229): frame=  147 fps= 23 q=31.0 size=     368kB time=00:00:04.90 bitrate= 614.2kbits/s    
    
09-17 01:17:04.335: I/Videokit(1229): frame=  159 fps= 23 q=31.0 size=     390kB time=00:00:05.30 bitrate= 602.1kbits/s    
    
09-17 01:17:04.921: I/Videokit(1229): frame=  171 fps= 23 q=31.0 size=     412kB time=00:00:05.70 bitrate= 591.3kbits/s    
    
09-17 01:17:05.437: I/Videokit(1229): frame=  183 fps= 23 q=31.0 size=     432kB time=00:00:06.10 bitrate= 579.8kbits/s    
    
09-17 01:17:05.937: I/Videokit(1229): frame=  196 fps= 23 q=31.0 size=     453kB time=00:00:06.53 bitrate= 568.0kbits/s    
    
09-17 01:17:06.453: I/Videokit(1229): frame=  210 fps= 23 q=31.0 size=     483kB time=00:00:07.00 bitrate= 565.2kbits/s    
    
09-17 01:17:06.976: I/Videokit(1229): frame=  224 fps= 23 q=31.0 size=     513kB time=00:00:07.47 bitrate= 562.3kbits/s    
    
09-17 01:17:07.515: I/Videokit(1229): frame=  239 fps= 24 q=31.0 size=     538kB time=00:00:07.97 bitrate= 553.1kbits/s    
    
09-17 01:17:08.007: I/Videokit(1229): frame=  249 fps= 23 q=31.0 size=     559kB time=00:00:08.30 bitrate= 551.2kbits/s    
    
09-17 01:17:08.531: I/Videokit(1229): frame=  262 fps= 24 q=31.0 size=     581kB time=00:00:08.74 bitrate= 544.6kbits/s    
    
09-17 01:17:09.359: I/Videokit(1229): frame=  272 fps= 23 q=31.0 size=     602kB time=00:00:09.07 bitrate= 543.1kbits/s    
    
09-17 01:17:09.882: I/Videokit(1229): frame=  284 fps= 23 q=31.0 size=     624kB time=00:00:09.47 bitrate= 539.5kbits/s    
    
09-17 01:17:10.374: I/Videokit(1229): frame=  296 fps= 23 q=31.0 size=     651kB time=00:00:09.87 bitrate= 540.2kbits/s    
    
09-17 01:17:10.898: I/Videokit(1229): frame=  309 fps= 23 q=31.0 size=     682kB time=00:00:10.31 bitrate= 542.1kbits/s    
    
09-17 01:17:11.406: I/Videokit(1229): frame=  324 fps= 23 q=31.0 size=     710kB time=00:00:10.81 bitrate= 538.3kbits/s    
    
09-17 01:17:11.929: I/Videokit(1229): frame=  343 fps= 24 q=31.0 size=     749kB time=00:00:11.44 bitrate= 536.2kbits/s    
    
09-17 01:17:12.437: I/Videokit(1229): frame=  361 fps= 24 q=24.8 size=     787kB time=00:00:12.04 bitrate= 535.3kbits/s    
    
09-17 01:17:12.953: I/Videokit(1229): frame=  379 fps= 24 q=31.0 size=     821kB time=00:00:12.64 bitrate= 531.8kbits/s    
    
09-17 01:17:13.460: I/Videokit(1229): frame=  397 fps= 25 q=24.8 size=     869kB time=00:00:13.24 bitrate= 537.2kbits/s    
    
09-17 01:17:13.960: I/Videokit(1229): frame=  413 fps= 25 q=31.0 size=     903kB time=00:00:13.78 bitrate= 537.0kbits/s    
    
09-17 01:17:14.468: I/Videokit(1229): frame=  430 fps= 25 q=31.0 size=     942kB time=00:00:14.34 bitrate= 537.7kbits/s    
    
09-17 01:17:14.601: V/Videokit(1229): No more output streams to write to, finishing.
    
09-17 01:17:14.609: I/Videokit(1229): frame=  435 fps= 25 q=31.0 Lsize=     959kB time=00:00:14.51 bitrate= 541.2kbits/s    
    
09-17 01:17:14.609: I/Videokit(1229): video:956kB audio:0kB subtitle:0 data:0 global headers:0kB muxing overhead 0.275524%
    
09-17 01:17:14.609: D/Videokit(1229): 439 frames successfully decoded, 0 decoding errors
    
09-17 01:17:14.617: I/Videokit(1229): Main ended with status 0

    The problem is that the output on android has very poor quality How can I make ffmpeg build a video with a quality close to the original file. I presume that filter_complex forces a new video encode.

  • Applying filter complex fails with something related to audio

    18 septembre 2014, par Alin

    I finally managed to build ffmpeg as detailed in here : https://enoent.fr/blog/2014/06/20/compile-ffmpeg-for-android/ and in the end, I have a ffmpeg library which accepts command arguments.

    I am trying to apply a watermark image over the video so for it I am using preparing this ffmpeg command :

    ffmpeg -i input.avi -i logo.png -filter_complex 'overlay=10:main_h-overlay_h-10' output.avi

    I have first tried it on windows using ffmpeg.exe and the result was as expected.

    I have tried it on android using the compiled android and the output is as follows :

    09-17 22:03:34.455: I/Videokit(18419): Loading native library compiled at 22:33:10 Sep 15 2014
    
09-17 22:03:34.455: I/Videokit(18419): Option: ffmpeg
    
09-17 22:03:34.455: I/Videokit(18419): Option: -loglevel
    
09-17 22:03:34.455: I/Videokit(18419): Option: debug
    
09-17 22:03:34.455: I/Videokit(18419): Option: -i
    
09-17 22:03:34.455: I/Videokit(18419): Option: /storage/emulated/0/vid.mp4
    
09-17 22:03:34.455: I/Videokit(18419): Option: -i
    
09-17 22:03:34.455: I/Videokit(18419): Option: /storage/emulated/0/logo.png
    
09-17 22:03:34.455: I/Videokit(18419): Option: -qscale:v
    
09-17 22:03:34.455: I/Videokit(18419): Option: 1
    
09-17 22:03:34.455: I/Videokit(18419): Option: -filter_complex
    
09-17 22:03:34.455: I/Videokit(18419): Option: overlay=10:main_h-overlay_h-10
    
09-17 22:03:34.455: I/Videokit(18419): Option: /storage/emulated/0/outVid.mp4
    
09-17 22:03:34.455: I/Videokit(18419): Running main
    
09-17 22:03:34.463: D/Videokit(18419): Splitting the commandline.
    
09-17 22:03:34.463: D/Videokit(18419): Reading option '-loglevel' ...
    
09-17 22:03:34.463: D/Videokit(18419):  matched as option 'loglevel' (set logging level) with argument 'debug'.
    
09-17 22:03:34.463: D/Videokit(18419): Reading option '-i' ...
    
09-17 22:03:34.463: D/Videokit(18419):  matched as input file with argument '/storage/emulated/0/vid.mp4'.
    
09-17 22:03:34.463: D/Videokit(18419): Reading option '-i' ...
    
09-17 22:03:34.463: D/Videokit(18419):  matched as input file with argument '/storage/emulated/0/logo.png'.
    
09-17 22:03:34.463: D/Videokit(18419): Reading option '-qscale:v' ...
    
09-17 22:03:34.463: D/Videokit(18419):  matched as option 'qscale' (use fixed quality scale (VBR)) with argument '1'.
    
09-17 22:03:34.463: D/Videokit(18419): Reading option '-filter_complex' ...
    
09-17 22:03:34.463: D/Videokit(18419):  matched as option 'filter_complex' (create a complex filtergraph) with argument 'overlay=10:main_h-overlay_h-10'.
    
09-17 22:03:34.463: D/Videokit(18419): Reading option '/storage/emulated/0/outVid.mp4' ...
    
09-17 22:03:34.463: D/Videokit(18419):  matched as output file.
    
09-17 22:03:34.463: D/Videokit(18419): Finished splitting the commandline.
    
09-17 22:03:34.463: D/Videokit(18419): Parsing a group of options: global .
    
09-17 22:03:34.463: D/Videokit(18419): Applying option loglevel (set logging level) with argument debug.
    
09-17 22:03:34.463: D/Videokit(18419): Applying option filter_complex (create a complex filtergraph) with argument overlay=10:main_h-overlay_h-10.
    
09-17 22:03:34.463: D/Videokit(18419): Successfully parsed a group of options.
    
09-17 22:03:34.463: D/Videokit(18419): Parsing a group of options: input file /storage/emulated/0/vid.mp4.
    
09-17 22:03:34.463: D/Videokit(18419): Successfully parsed a group of options.
    
09-17 22:03:34.463: D/Videokit(18419): Opening an input file: /storage/emulated/0/vid.mp4.
    
09-17 22:03:34.612: D/Videokit(18419): Successfully opened the file.
    
09-17 22:03:34.612: D/Videokit(18419): Parsing a group of options: input file /storage/emulated/0/logo.png.
    
09-17 22:03:34.612: D/Videokit(18419): Successfully parsed a group of options.
    
09-17 22:03:34.612: D/Videokit(18419): Opening an input file: /storage/emulated/0/logo.png.
    
09-17 22:03:34.620: D/Videokit(18419): Successfully opened the file.
    
09-17 22:03:34.620: D/Videokit(18419): Parsing a group of options: output file /storage/emulated/0/outVid.mp4.
    
09-17 22:03:34.620: D/Videokit(18419): Applying option qscale:v (use fixed quality scale (VBR)) with argument 1.
    
09-17 22:03:34.620: D/Videokit(18419): Successfully parsed a group of options.
    
09-17 22:03:34.620: D/Videokit(18419): Opening an output file: /storage/emulated/0/outVid.mp4.
    
09-17 22:03:34.627: D/Videokit(18419): Successfully opened the file.
    
09-17 22:03:34.643: I/Videokit(18419): Conversion failed!
    
09-17 22:03:34.643: I/Videokit(18419): Stream mapping:
    
09-17 22:03:34.643: E/Videokit(18419): Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height

    The problem is Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or height and this is somehow related to audio of the file. I have removed the audio and I get no error.

    ffmpeg -i vid.mp4 returns this :

    Command line:
    
ffmpeg -i vid.mp4 -report
    
ffmpeg version N-66278-g91459bd Copyright (c) 2000-2014 the FFmpeg developers
    
  built on Sep 14 2014 22:05:07 with gcc 4.8.3 (GCC)
    
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
    
  libavutil      54.  7.100 / 54.  7.100
    
  libavcodec     56.  1.100 / 56.  1.100
    
  libavformat    56.  4.101 / 56.  4.101
    
  libavdevice    56.  0.100 / 56.  0.100
    
  libavfilter     5.  1.100 /  5.  1.100
    
  libswscale      3.  0.100 /  3.  0.100
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  0.100 / 53.  0.100
    
Splitting the commandline.
    
Reading option '-i' ... matched as input file with argument 'vid.mp4'.
    
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
    
Finished splitting the commandline.
    
Parsing a group of options: global .
    
Applying option report (generate a report) with argument 1.
    
Successfully parsed a group of options.
    
Parsing a group of options: input file vid.mp4.
    
Successfully parsed a group of options.
    
Opening an input file: vid.mp4.
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 040e38c0] Format mov,mp4,m4a,3gp,3g2,mj2 probed with size=2048 and score=100
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 040e38c0] ISO: File Type Major Brand: isom
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 040e38c0] Before avformat_find_stream_info() pos: 19279 bytes read:32768 seeks:0
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 040e38c0] All info found
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 040e38c0] After avformat_find_stream_info() pos: 41952 bytes read:65536 seeks:0 frames:2
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'vid.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    encoder         : Lavf55.19.104
    
  Duration: 00:00:14.58, start: 0.023222, bitrate: 1250 kb/s
    
    Stream #0:0(und), 1, 1/11988: Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 640x640 [SAR 1:1 DAR 1:1], 1099 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc (default)
    
    Metadata:
    
      handler_name    : VideoHandler
    
    Stream #0:1(und), 1, 1/44100: Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 97 kb/s (default)
    
    Metadata:
    
      handler_name    : SoundHandler
    
    Stream #0:2(eng), 0, 1/90000: Data: none (rtp  / 0x20707472), 39 kb/s
    
    Metadata:
    
      handler_name    : HintHandler
    
    Stream #0:3(eng), 0, 1/44100: Data: none (rtp  / 0x20707472), 8 kb/s
    
    Metadata:
    
      handler_name    : HintHandler
    
Successfully opened the file.
    
At least one output file must be specified
    
[AVIOContext @ 040e3f40] Statistics: 65536 bytes read, 0 seeks

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