media-libs/mlt: Fix png 8-bit segfault

Package-Manager: Portage-2.3.43, Repoman-2.3.10

1 files changed, 36 insertions, 0 deletions

diff --git a/media-libs/mlt/files/mlt-6.6.0-png-segfault.patch b/media-libs/mlt/files/mlt-6.6.0-png-segfault.patch
new file mode 100644
index 000000000000..c93458a8273b
--- /dev/null
+++ b/media-libs/mlt/files/mlt-6.6.0-png-segfault.patch
@@ -0,0 +1,36 @@
+From e013fd7c2f49b40a1b482d712d531329d538da88 Mon Sep 17 00:00:00 2001
+From: Brian Matherly <code@brianmatherly.com>
+Date: Wed, 31 Jan 2018 20:57:42 -0600
+Subject: [PATCH] Fix segmentation fault when using qimage png producer #296
+
+---
+ src/modules/qt/qimage_wrapper.cpp | 7 ++++---
+ 1 file changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/src/modules/qt/qimage_wrapper.cpp b/src/modules/qt/qimage_wrapper.cpp
+index 436f65d15..99b4ebf8e 100644
+--- a/src/modules/qt/qimage_wrapper.cpp
++++ b/src/modules/qt/qimage_wrapper.cpp
+@@ -229,18 +229,19 @@ void refresh_image( producer_qimage self, mlt_frame frame, mlt_image_format form
+ 		QString interps = mlt_properties_get( properties, "rescale.interp" );
+ 		bool interp = ( interps != "nearest" ) && ( interps != "none" );
+ 		QImage *qimage = static_cast<QImage*>( self->qimage );
++		int has_alpha = qimage->hasAlphaChannel();
++		QImage::Format qimageFormat = has_alpha ? QImage::Format_ARGB32 : QImage::Format_RGB32;
+ 
+ 		// Note - the original qimage is already safe and ready for destruction
+-		if ( qimage->depth() == 1 )
++		if ( qimage->format() != qimageFormat )
+ 		{
+-			QImage temp = qimage->convertToFormat( QImage::Format_RGB32 );
++			QImage temp = qimage->convertToFormat( qimageFormat );
+ 			delete qimage;
+ 			qimage = new QImage( temp );
+ 			self->qimage = qimage;
+ 		}
+ 		QImage scaled = interp? qimage->scaled( QSize( width, height ) ) :
+ 			qimage->scaled( QSize(width, height), Qt::IgnoreAspectRatio, Qt::SmoothTransformation );
+-		int has_alpha = scaled.hasAlphaChannel();
+ 
+ 		// Store width and height
+ 		self->current_width = width;