X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fdcp_decoder.cc;h=379ce5a892a7c84933d74aeb3e3dd65f64f6f422;hb=3a5f168317a4fa7b8df54c10cedb68e95b972699;hp=3bfbd7720c9e04cf99b951db455e306bd2be3cb9;hpb=6f0a590bc3266f21ba577116219bd019e891d480;p=dcpomatic.git

diff --git a/src/lib/dcp_decoder.cc b/src/lib/dcp_decoder.cc
index 3bfbd7720..379ce5a89 100644
--- a/src/lib/dcp_decoder.cc
+++ b/src/lib/dcp_decoder.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2014 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2014-2015 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
@@ -23,31 +23,35 @@
 #include "image.h"
 #include "config.h"
 #include <dcp/dcp.h>
+#include <dcp/decrypted_kdm.h>
 #include <dcp/cpl.h>
 #include <dcp/reel.h>
-#include <dcp/mono_picture_mxf.h>
-#include <dcp/stereo_picture_mxf.h>
+#include <dcp/mono_picture_asset.h>
+#include <dcp/stereo_picture_asset.h>
 #include <dcp/reel_picture_asset.h>
 #include <dcp/reel_sound_asset.h>
+#include <dcp/reel_subtitle_asset.h>
 #include <dcp/mono_picture_frame.h>
 #include <dcp/stereo_picture_frame.h>
 #include <dcp/sound_frame.h>
+#include <boost/foreach.hpp>
+#include <iostream>
 
 using std::list;
 using std::cout;
 using boost::shared_ptr;
 using boost::dynamic_pointer_cast;
 
-DCPDecoder::DCPDecoder (shared_ptr<const DCPContent> c)
+DCPDecoder::DCPDecoder (shared_ptr<const DCPContent> c, bool fast)
 	: VideoDecoder (c)
-	, AudioDecoder (c)
+	, AudioDecoder (c, fast)
 	, SubtitleDecoder (c)
 	, _dcp_content (c)
 {
 	dcp::DCP dcp (c->directory ());
 	dcp.read ();
 	if (c->kdm ()) {
-		dcp.add (dcp::DecryptedKDM (c->kdm().get (), Config::instance()->decryption_private_key ()));
+		dcp.add (dcp::DecryptedKDM (c->kdm().get (), Config::instance()->decryption_chain()->key().get ()));
 	}
 	DCPOMATIC_ASSERT (dcp.cpls().size() == 1);
 	_reels = dcp.cpls().front()->reels ();
@@ -55,63 +59,92 @@ DCPDecoder::DCPDecoder (shared_ptr<const DCPContent> c)
 }
 
 bool
-DCPDecoder::pass (PassReason)
+DCPDecoder::pass (PassReason reason, bool)
 {
 	if (_reel == _reels.end () || !_dcp_content->can_be_played ()) {
 		return true;
 	}
 
-	float const vfr = _dcp_content->video_frame_rate ();
-	int64_t const frame = _next.frames (vfr);
-	
-	if ((*_reel)->main_picture ()) {
-		shared_ptr<dcp::PictureMXF> mxf = (*_reel)->main_picture()->mxf ();
-		shared_ptr<dcp::MonoPictureMXF> mono = dynamic_pointer_cast<dcp::MonoPictureMXF> (mxf);
-		shared_ptr<dcp::StereoPictureMXF> stereo = dynamic_pointer_cast<dcp::StereoPictureMXF> (mxf);
+	/* Offset of the start of the current reel from the start of the content in frames */
+	int offset = 0;
+	list<shared_ptr<dcp::Reel> >::const_iterator i = _reels.begin();
+	while (i != _reel) {
+		offset += (*i)->main_picture()->duration ();
+		++i;
+	}
+
+	double const vfr = _dcp_content->video_frame_rate ();
+
+	/* Frame within the (played part of the) reel that is coming up next */
+	int64_t const frame = _next.frames_round (vfr);
+
+	if ((*_reel)->main_picture () && reason != PASS_REASON_SUBTITLE) {
+		shared_ptr<dcp::PictureAsset> asset = (*_reel)->main_picture()->asset ();
+		shared_ptr<dcp::MonoPictureAsset> mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (asset);
+		shared_ptr<dcp::StereoPictureAsset> stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (asset);
 		int64_t const entry_point = (*_reel)->main_picture()->entry_point ();
 		if (mono) {
-			video (shared_ptr<ImageProxy> (new J2KImageProxy (mono->get_frame (entry_point + frame), mxf->size())), frame);
+			video (shared_ptr<ImageProxy> (new J2KImageProxy (mono->get_frame (entry_point + frame), asset->size())), offset + frame);
 		} else {
 			video (
-				shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame (entry_point + frame), mxf->size(), dcp::EYE_LEFT)),
-				frame
+				shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame (entry_point + frame), asset->size(), dcp::EYE_LEFT)),
+				offset + frame
 				);
-			
+
 			video (
-				shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame (entry_point + frame), mxf->size(), dcp::EYE_RIGHT)),
-				frame
+				shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame (entry_point + frame), asset->size(), dcp::EYE_RIGHT)),
+				offset + frame
 				);
 		}
 	}
 
-	if ((*_reel)->main_sound ()) {
+	if ((*_reel)->main_sound () && reason != PASS_REASON_SUBTITLE) {
 		int64_t const entry_point = (*_reel)->main_sound()->entry_point ();
-		shared_ptr<const dcp::SoundFrame> sf = (*_reel)->main_sound()->mxf()->get_frame (entry_point + frame);
+		shared_ptr<const dcp::SoundFrame> sf = (*_reel)->main_sound()->asset()->get_frame (entry_point + frame);
 		uint8_t const * from = sf->data ();
 
-		int const channels = _dcp_content->audio_channels ();
+		int const channels = _dcp_content->audio_stream()->channels ();
 		int const frames = sf->size() / (3 * channels);
 		shared_ptr<AudioBuffers> data (new AudioBuffers (channels, frames));
 		for (int i = 0; i < frames; ++i) {
 			for (int j = 0; j < channels; ++j) {
-				data->data()[j][i] = float (from[0] | (from[1] << 8) | (from[2] << 16)) / (1 << 23);
+				data->data()[j][i] = static_cast<int> ((from[0] << 8) | (from[1] << 16) | (from[2] << 24)) / static_cast<float> (INT_MAX - 256);
 				from += 3;
 			}
 		}
 
-		audio (data, _next);
+		audio (_dcp_content->audio_stream(), data, ContentTime::from_frames (offset, vfr) + _next);
 	}
 
-	/* XXX: subtitle */
+	if ((*_reel)->main_subtitle ()) {
+		int64_t const entry_point = (*_reel)->main_subtitle()->entry_point ();
+		list<dcp::SubtitleString> subs = (*_reel)->main_subtitle()->subtitle_asset()->subtitles_during (
+			dcp::Time (entry_point + frame, vfr, vfr),
+			dcp::Time (entry_point + frame + 1, vfr, vfr),
+			true
+			);
+
+		if (!subs.empty ()) {
+			/* XXX: assuming that all `subs' are at the same time; maybe this is ok */
+			text_subtitle (
+				ContentTimePeriod (
+					ContentTime::from_frames (offset - entry_point, vfr) + ContentTime::from_seconds (subs.front().in().as_seconds ()),
+					ContentTime::from_frames (offset - entry_point, vfr) + ContentTime::from_seconds (subs.front().out().as_seconds ())
+					),
+				subs
+				);
+		}
+	}
 
 	_next += ContentTime::from_frames (1, vfr);
 
 	if ((*_reel)->main_picture ()) {
-		if (_next.frames (vfr) >= (*_reel)->main_picture()->duration()) {
+		if (_next.frames_round (vfr) >= (*_reel)->main_picture()->duration()) {
 			++_reel;
+			_next = ContentTime ();
 		}
 	}
-	
+
 	return false;
 }
 
@@ -139,8 +172,35 @@ DCPDecoder::image_subtitles_during (ContentTimePeriod, bool) const
 }
 
 list<ContentTimePeriod>
-DCPDecoder::text_subtitles_during (ContentTimePeriod, bool) const
+DCPDecoder::text_subtitles_during (ContentTimePeriod period, bool starting) const
 {
-	/* XXX */
-	return list<ContentTimePeriod> ();
+	/* XXX: inefficient */
+
+	list<ContentTimePeriod> ctp;
+	double const vfr = _dcp_content->video_frame_rate ();
+
+	BOOST_FOREACH (shared_ptr<dcp::Reel> r, _reels) {
+		if (!r->main_subtitle ()) {
+			continue;
+		}
+
+		int64_t const entry_point = r->main_subtitle()->entry_point ();
+
+		list<dcp::SubtitleString> subs = r->main_subtitle()->subtitle_asset()->subtitles_during (
+			dcp::Time (period.from.seconds(), 1000) - dcp::Time (entry_point, vfr, vfr),
+			dcp::Time (period.to.seconds(), 1000) - dcp::Time (entry_point, vfr, vfr),
+			starting
+			);
+
+		BOOST_FOREACH (dcp::SubtitleString const & s, subs) {
+			ctp.push_back (
+				ContentTimePeriod (
+					ContentTime::from_seconds (s.in().as_seconds ()),
+					ContentTime::from_seconds (s.out().as_seconds ())
+					)
+				);
+		}
+	}
+
+	return ctp;
 }