On Thu, Feb 9, 2012 at 3:12 PM, Christophe Thommeret <hf...@free.fr> wrote: > Le jeudi 9 février 2012 23:34:14, Dan Dennedy a écrit : >> Note also that with consumer.real_time <> 0 there is a thread running >> to pre-render frames, and that thread defaults to mlt_image_yuv422, >> but you can change it by setting property mlt_image_format=yuv420p on >> the consumer (added since last release). > > I'm running with the default real_time=1. > Could you tell me more about setting this consumer' format property ? >
When real_time != 0, mlt_consumer.c spawns abs(real_time) threads that loop fetching a frame and calling mlt_frame_get_image(), and that call has a format parameter. It gets the format from the consumer property named "mlt_image_format," which accepts the names: yuv420p, yuv422, rgb24, rgb24a, or none. In December, I added support for mlt_image_none for a customer. This asks mlt_frame_get_image() to return the format that is closest to its native format. But the caller can really only expect that when there are no filters including normalizing filters. Maybe that is what you want if you want to offload as much conversion to glsl. Or, maybe you want yuv420p to reduce the bus bandwidth. P.S. a way to request no normalizing filters at runtime, is to use the abnormal producer, and the easiest way to invoke that is to prefix the resource name with "abnormal:" -- +-DRD-+ ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
