On Wed, May 14, 2014 at 7:24 PM, Dan Dennedy <d...@dennedy.org> wrote: > On Wed, May 14, 2014 at 3:33 AM, hatsch <hat...@gmail.com> wrote: >> >> hello everyone, >> i am trying to use the great webvfx producer for dynamic content on >> our melted playout server. >> the profile we are using for SDI (decklink) playout is dv_pal_wide, >> >> unfortunately the webvfx producer doesn't seem to care about >> anamorphic pixels and therefore only shows a canvas of 720x576 in > > > It is not the responsibility of the webvfx producer to care about that. It > only has the responsibility to indicate its pixel aspect ratio as 1.0, which > it does here: > https://github.com/mltframework/webvfx/blob/master/mlt/webvfx_producer.cpp#L107 > > It is the responsibility of the automatically added resize and rescale > filters to normalize the aspect ratio of the source to the mlt_profile. > However, there is also the frame property "aspect_ratio" that still needs to > be set, but it does not. When not set, the framework sets the frame's > default aspect_ratio to that of the profile. I think this is the problem. > Perhaps a change is needed in the framework to set the frame's aspect ratio > from the producer's meta. properties. > >> >> square pixel where it should be 1024 pixel width for fullscreen. >> >> has anyone an idea how i can get the webvfx producer to show the full >> 1024x576 webpage and output it to 720x576 anamorph via SDI? >> >> any input or workaround is very appreciated! > > > You are compiling webvfx yourself? If so, modify > mlt/webvfx_producer.cpp:getFrame(). Where you see: > mlt_properties_set_int(properties, "progressive", 1); > Add line: > mlt_properties_set_double(properties, "aspect_ratio", 1.0);
yes i am compiling myself. i have modified webvfx_producer.cpp to set the aspect_ratio and while it is still showing 720px width it is not stretched anymore. just as a guess i also tried setting in mlt/webvfx_producer.cpp:getFrame(). mlt_properties_set_int(properties, "width", 1024); mlt_properties_set_int(properties, "height", 576); which had no effect at all. while changing in mlt/webvfx_producer.cpp:createProducer(). --mlt_properties_set_int(properties, "meta.media.width", profile->width); --mlt_properties_set_int(properties, "meta.media.height", profile->height); ++mlt_properties_set_int(properties, "meta.media.width", 1024); ++mlt_properties_set_int(properties, "meta.media.height", 576); additional to setting the aspect ratio in the function above made it work with melt! and because meta.media.width is possible to set with melt melt -profile dv_pal_wide -producer webvfx:plain:http://dorfdev.neuf.at/node/9398/overlay meta.media.width=1024 -consumer decklink: works like expected! @juan while the output is dv_pal_wide the webvfx content area is only 720px width and stretching i have a test page with a css circle ( to see if it is stretched) , some text, and a page width inicator. http://dorfdev.neuf.at/node/9398/overlay > > See if that fixes the problem. > the next problem i have is with bringing the correct aspect ratio to melted, unfortunatly i have only SDI hardware available for some hours a day, so i can only continue testing tomorrow. thank you for all the suggestions ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
