Use ffmpeg calls for pixel parameters; add (and alter, hmm) tests to suit.

1 files changed, 55 insertions, 0 deletions

diff --git a/test/make_black_test.cc b/test/make_black_test.cc
new file mode 100644
index 000000000..76f38d676
--- /dev/null
+++ b/test/make_black_test.cc
@@ -0,0 +1,55 @@
+/*
+    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/* Check that Image::make_black works, and doesn't use values which crash
+   sws_scale().
+*/
+BOOST_AUTO_TEST_CASE (make_black_test)
+{
+	libdcp::Size in_size (512, 512);
+	libdcp::Size out_size (1024, 1024);
+
+	list<AVPixelFormat> pix_fmts;
+	pix_fmts.push_back (AV_PIX_FMT_RGB24);
+	pix_fmts.push_back (AV_PIX_FMT_YUV420P);
+	pix_fmts.push_back (AV_PIX_FMT_YUV422P10LE);
+	pix_fmts.push_back (AV_PIX_FMT_YUV444P9LE);
+	pix_fmts.push_back (AV_PIX_FMT_YUV444P9BE);
+	pix_fmts.push_back (AV_PIX_FMT_YUV444P10LE);
+	pix_fmts.push_back (AV_PIX_FMT_YUV444P10BE);
+	pix_fmts.push_back (AV_PIX_FMT_UYVY422);
+
+	int N = 0;
+	for (list<AVPixelFormat>::const_iterator i = pix_fmts.begin(); i != pix_fmts.end(); ++i) {
+		boost::shared_ptr<Image> foo (new SimpleImage (*i, in_size, true));
+		foo->make_black ();
+		boost::shared_ptr<Image> bar = foo->scale_and_convert_to_rgb (out_size, 0, Scaler::from_id ("bicubic"), true);
+		
+		uint8_t* p = bar->data()[0];
+		for (int y = 0; y < bar->size().height; ++y) {
+			uint8_t* q = p;
+			for (int x = 0; x < bar->line_size()[0]; ++x) {
+				BOOST_CHECK_EQUAL (*q++, 0);
+			}
+			p += bar->stride()[0];
+		}
+
+		++N;
+	}
+}