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/*
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;
}
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