Le 22/05/2013 18:47, Dan Dennedy a écrit : > On Wed, May 22, 2013 at 7:53 AM, Christophe Thommeret <hf...@free.fr> wrote: >> HI, >> >> What is the purpose of this property? >> Is this to allow top_filed_first encoding? >> And if so, how do i enable it in kdenlive? >> Thanx. > That property is internal to MLT and not for direct use by users and > applications. Rather, users and apps should use the "top_field_first" > property on the consumer. When this property is propagated from the > consumer to the frame, it is named "consumer_tff" on the frame object > to qualify it as the requested field order, to distinguish it from the > field order of the image within the frame. There are other similar > named properties that begin with "consumer_" that follows this > pattern. Then, mlt_consumer.h reads: "top_field_first when not > progressive, whether interlace field order is top-field-first, > defaults to 0." > > IOW, if you did not set progressive=1, then it changes the desired > output field order from bottom-field-first to top-field-first. This is > then used by various services such as filter_fieldorder (via > frame.consumer_tff) and consumer_avformat. Other services such as > transition_luma and that do field-based rendering/processing might > also use it. The fieldorder filter is automatically added to producers > as one of the "normalization" filters that conforms all inputs to the > project settings. The avformat consumer uses the property to set some > of the avcodec structure fields similar to the -top option for ffmpeg. > > To use it in Kdenlive, add top_field_first=1 to the render settings. > > -- > +-DRD-+
Works great ! Too bad i haven't noticed this earlier. (This is probably something that kdenlive should expose) (My Philips TV seems to not understand BFF in h264, it plays that as TFF!) -- Christophe Thommeret ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_may _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
