Add VideoMXFContent (part of #803).

1 files changed, 79 insertions, 0 deletions

diff --git a/src/lib/video_mxf_decoder.cc b/src/lib/video_mxf_decoder.cc
new file mode 100644
index 000000000..e8b787d8d
--- /dev/null
+++ b/src/lib/video_mxf_decoder.cc
@@ -0,0 +1,79 @@
+/*
+    Copyright (C) 2016 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.
+
+*/
+
+#include "video_mxf_decoder.h"
+#include "video_decoder.h"
+#include "video_mxf_content.h"
+#include "j2k_image_proxy.h"
+#include <dcp/mono_picture_asset.h>
+#include <dcp/stereo_picture_asset.h>
+#include <dcp/exceptions.h>
+
+using boost::shared_ptr;
+
+VideoMXFDecoder::VideoMXFDecoder (shared_ptr<const VideoMXFContent> content, shared_ptr<Log> log)
+	: _content (content)
+{
+	video.reset (new VideoDecoder (this, content, log));
+}
+
+bool
+VideoMXFDecoder::pass (PassReason reason, bool)
+{
+	shared_ptr<dcp::MonoPictureAsset> mono;
+	try {
+		mono.reset (new dcp::MonoPictureAsset (_content->path(0)));
+	} catch (dcp::MXFFileError& e) {
+		/* maybe it's stereo */
+	} catch (dcp::DCPReadError& e) {
+		/* maybe it's stereo */
+	}
+
+	shared_ptr<dcp::StereoPictureAsset> stereo;
+	try {
+		stereo.reset (new dcp::StereoPictureAsset (_content->path(0)));
+	} catch (dcp::MXFFileError& e) {
+		if (!mono) {
+			throw;
+		}
+	} catch (dcp::DCPReadError& e) {
+		if (!mono) {
+			throw;
+		}
+	}
+
+	double const vfr = _content->active_video_frame_rate ();
+	int64_t const frame = _next.frames_round (vfr);
+
+	if (mono) {
+		video->give (shared_ptr<ImageProxy> (new J2KImageProxy (mono->get_frame(frame), mono->size())), frame);
+	} else {
+		video->give (shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame(frame), stereo->size(), dcp::EYE_LEFT)), frame);
+		video->give (shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame(frame), stereo->size(), dcp::EYE_RIGHT)), frame);
+	}
+
+	_next += ContentTime::from_frames (1, vfr);
+}
+
+void
+VideoMXFDecoder::seek (ContentTime t, bool accurate)
+{
+	video->seek (t, accurate);
+	_next = t;
+}