Am 12.07.2009 um 22:39 schrieb Dan Dennedy:
2009/7/11 Marco Gittler <[email protected]>:Am 10.07.2009 um 23:53 schrieb Dan Dennedy:2009/7/10 Marco Gittler <[email protected]>:@dan th title should be created with alpha channel. how can i test in melt to overlay this title over a video ?Please make sure that your new producer only produces mlt_image_rgb24aand indicates it. Do not worry about conversion to mlt_image_yuv422 anymore.melt kdenlivetitle:try.kdenlivetitle -track video.avi -attach transition:mix -> does not work :(add "*.kdenlivetitle=kdenlivetitle" to core/loader.dictmelt video.avi -filter watermark:try.kdenlivetitle composite.progressive=1nice, this works for pixbuf pictures. but with the kdenlivetitle :no overlayas standalone prodcuer the titleplayer works very well.does mlt_image_rgb24a, also include (like the name seems to say) the alphachannel ?Yes.it seems the alpha will not be set.If you return mlt_image_rgb24a and do not include the alpha channel byte per pixel, then the image will skewed because downstream functions expect 4 bytes per pixel. Producer qimage supports this, but it must convert ARGB to RGBA. Maybe something in the way you render is writing alpha channel byte as 0xff.
the image created i now rgb24a and includes real alpha data. playing the kdenlivetitle alone plays correct. but as overlay (watermark) with other producers will not show anything. tested with producer_qimage (works in both cases).any idea what can go wrong ? (the producer_get_image is not large, but i can't see any error )
any hints someone ? regards marco
or must i copy the alpha channel to an extra buffer and set this then to"alpha" as property ?This is possible, but it only makes sense if the alpha channel is a separate picture, which is not typical for Qt. -- +-DRD-+ ------------------------------------------------------------------------------ Enter the BlackBerry Developer ChallengeThis is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prizedetails at: http://p.sf.net/sfu/Challenge _______________________________________________ Kdenlive-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
smime.p7s
Description: S/MIME cryptographic signature
------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/Challenge
_______________________________________________ Kdenlive-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/kdenlive-devel
