Hi,
Following my tests with the qtblend transitions, I realized that the QImage
format Format_RGBA allows for a much simpler conversion between MLT and
QImage, avoiding the need to copy data. We can in fact simply create a
QImage directly from MLT's image buffer (with format=mlt_image_rgb24
I think this would be a good optimization.
QImage::Format_RGBA is not available in Qt 4.8. So we would need some
pre-processor conditionals to use either the previous way or the new way
depending on version.
Are you sure that line order is the same between Qt and MLT image formats? For
some
On Saturday, July 16, 2016 7:02:25 PM CEST, Brian Matherly wrote:
> I think this would be a good optimization.
>
> QImage::Format_RGBA is not available in Qt 4.8. So we would
> need some pre-processor conditionals to use either the previous
> way or the new way depending on version.
Oh, righ
> Oh, right. I used it in my qtblend transition - than I guess I will enable
> it only on Qt5.
I would prefer to see copy_qimage_to_mlt_rgba() modified to use it with a
conditional to check QT version at compile time.
> I can confirm that you can draw text directly on the QImage
> (Format_R
On Sat, Jul 16, 2016 at 11:37 AM Jean-Baptiste Mardelle
wrote:
> On Saturday, July 16, 2016 7:02:25 PM CEST, Brian Matherly wrote:
> > Are you sure that line order is the same between Qt and MLT
> > image formats? For some reason I was thinking that line 0 is the
>
The image line order is the sa
On Saturday, July 16, 2016 8:57:49 PM CEST, Brian Matherly wrote:
>
>> Oh, right. I used it in my qtblend transition - than I guess I
>> will enable
>> it only on Qt5.
>
> I would prefer to see copy_qimage_to_mlt_rgba() modified to use
> it with a conditional to check QT version at compile time
I am OK with you to commit your changes and additions. Configure should let
you pass CXXFLAGS set from the environment.
On Sat, Jul 16, 2016, 3:56 PM Jean-Baptiste Mardelle
wrote:
> On Saturday, July 16, 2016 8:57:49 PM CEST, Brian Matherly wrote:
>
> >
> >> Oh, right. I used it in my qtblend tr
