X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fplayer.cc;h=d13ae5f3cb8588fbb6b96dab72ed9f54c22745d4;hb=a1b0ed4ac0753b420ce8ab8467165e220bdb4b05;hp=37f172f1da72ea922f7a69dc018e9151bbdd3dc1;hpb=0c01a21ffc4cf9eea71a662916cc3095f2634216;p=dcpomatic.git

diff --git a/src/lib/player.cc b/src/lib/player.cc
index 37f172f1d..d13ae5f3c 100644
--- a/src/lib/player.cc
+++ b/src/lib/player.cc
@@ -24,6 +24,8 @@
 #include "ffmpeg_content.h"
 #include "still_image_decoder.h"
 #include "still_image_content.h"
+#include "moving_image_decoder.h"
+#include "moving_image_content.h"
 #include "sndfile_decoder.h"
 #include "sndfile_content.h"
 #include "subtitle_content.h"
@@ -53,15 +55,15 @@ class Piece
 public:
 	Piece (shared_ptr<Content> c)
 		: content (c)
-		, video_position (c->start ())
-		, audio_position (c->start ())
+		, video_position (c->position ())
+		, audio_position (c->position ())
 	{}
 	
 	Piece (shared_ptr<Content> c, shared_ptr<Decoder> d)
 		: content (c)
 		, decoder (d)
-		, video_position (c->start ())
-		, audio_position (c->start ())
+		, video_position (c->position ())
+		, audio_position (c->position ())
 	{}
 	
 	shared_ptr<Content> content;
@@ -81,7 +83,7 @@ std::ostream& operator<<(std::ostream& s, Piece const & p)
 		s << "\tsndfile	   ";
 	}
 	
-	s << " at " << p.content->start() << " until " << p.content->end();
+	s << " at " << p.content->position() << " until " << p.content->end();
 	
 	return s;
 }
@@ -95,12 +97,13 @@ Player::Player (shared_ptr<const Film> f, shared_ptr<const Playlist> p)
 	, _have_valid_pieces (false)
 	, _video_position (0)
 	, _audio_position (0)
-	, _audio_buffers (f->audio_channels(), 0)
+	, _audio_merger (f->audio_channels(), bind (&Film::time_to_audio_frames, f.get(), _1), bind (&Film::audio_frames_to_time, f.get(), _1))
+	, _last_emit_was_black (false)
 {
-	_playlist->Changed.connect (bind (&Player::playlist_changed, this));
-	_playlist->ContentChanged.connect (bind (&Player::content_changed, this, _1, _2, _3));
-	_film->Changed.connect (bind (&Player::film_changed, this, _1));
-	set_video_container_size (_film->container()->size (_film->full_frame ()));
+	_playlist_changed_connection = _playlist->Changed.connect (bind (&Player::playlist_changed, this));
+	_playlist_content_changed_connection = _playlist->ContentChanged.connect (bind (&Player::content_changed, this, _1, _2, _3));
+	_film_changed_connection = _film->Changed.connect (bind (&Player::film_changed, this, _1));
+	set_video_container_size (fit_ratio_within (_film->container()->ratio (), _film->full_frame ()));
 }
 
 void
@@ -174,7 +177,7 @@ Player::pass ()
 			emit_black ();
 		} else {
 #ifdef DEBUG_PLAYER
-			cout << "Pass " << *earliest << "\n";
+			cout << "Pass video " << *earliest << "\n";
 #endif			
 			earliest->decoder->pass ();
 		}
@@ -183,15 +186,15 @@ Player::pass ()
 	case AUDIO:
 		if (earliest_t > _audio_position) {
 #ifdef DEBUG_PLAYER
-			cout << "no audio here; emitting silence.\n";
+			cout << "no audio here (none until " << earliest_t << "); emitting silence.\n";
 #endif
 			emit_silence (_film->time_to_audio_frames (earliest_t - _audio_position));
 		} else {
 #ifdef DEBUG_PLAYER
-			cout << "Pass " << *earliest << "\n";
-#endif			
+			cout << "Pass audio " << *earliest << "\n";
+#endif
 			earliest->decoder->pass ();
-			
+
 			if (earliest->decoder->done()) {
 				shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (earliest->content);
 				assert (ac);
@@ -207,8 +210,21 @@ Player::pass ()
 		break;
 	}
 
+	if (_audio) {
+		Time audio_done_up_to = TIME_MAX;
+		for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
+			if (dynamic_pointer_cast<AudioDecoder> ((*i)->decoder)) {
+				audio_done_up_to = min (audio_done_up_to, (*i)->audio_position);
+			}
+		}
+
+		TimedAudioBuffers<Time> tb = _audio_merger.pull (audio_done_up_to);
+		Audio (tb.audio, tb.time);
+		_audio_position += _film->audio_frames_to_time (tb.audio->frames ());
+	}
+		
 #ifdef DEBUG_PLAYER
-	cout << "\tpost pass " << _video_position << " " << _audio_position << "\n";
+	cout << "\tpost pass _video_position=" << _video_position << " _audio_position=" << _audio_position << "\n";
 #endif	
 
 	return false;
@@ -230,14 +246,23 @@ Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image
 		return;
 	}
 
-	shared_ptr<Image> work_image = image->crop (content->crop(), true);
+	Time const relative_time = (frame * frc.factor() * TIME_HZ / _film->video_frame_rate());
+	if (content->trimmed (relative_time)) {
+		return;
+	}
 
-	libdcp::Size const image_size = content->ratio()->size (_video_container_size);
-	
-	work_image = work_image->scale_and_convert_to_rgb (image_size, _film->scaler(), true);
+	/* Convert to RGB first, as FFmpeg doesn't seem to like handling YUV images with odd widths */
+	shared_ptr<Image> work_image = image->scale (image->size (), _film->scaler(), PIX_FMT_RGB24, true);
+
+	work_image = work_image->crop (content->crop(), true);
 
-	Time time = content->start() + (frame * frc.factor() * TIME_HZ / _film->video_frame_rate());
+	float const ratio = content->ratio() ? content->ratio()->ratio() : content->video_size_after_crop().ratio();
+	libdcp::Size image_size = fit_ratio_within (ratio, _video_container_size);
 	
+	work_image = work_image->scale (image_size, _film->scaler(), PIX_FMT_RGB24, true);
+
+	Time time = content->position() + relative_time - content->trim_start ();
+	    
 	if (_film->with_subtitles () && _out_subtitle.image && time >= _out_subtitle.from && time <= _out_subtitle.to) {
 		work_image->alpha_blend (_out_subtitle.image, _out_subtitle.position);
 	}
@@ -255,14 +280,16 @@ Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image
 	_last_video = piece->content;
 #endif
 
-	Video (work_image, eyes, same, time);
+	Video (work_image, eyes, content->colour_conversion(), same, time);
 	time += TIME_HZ / _film->video_frame_rate();
 
 	if (frc.repeat) {
-		Video (work_image, eyes, true, time);
+		Video (work_image, eyes, content->colour_conversion(), true, time);
 		time += TIME_HZ / _film->video_frame_rate();
 	}
 
+	_last_emit_was_black = false;
+
 	_video_position = piece->video_position = time;
 }
 
@@ -277,12 +304,29 @@ Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers
 	shared_ptr<AudioContent> content = dynamic_pointer_cast<AudioContent> (piece->content);
 	assert (content);
 
+	/* Gain */
+	if (content->audio_gain() != 0) {
+		shared_ptr<AudioBuffers> gain (new AudioBuffers (audio));
+		gain->apply_gain (content->audio_gain ());
+		audio = gain;
+	}
+
 	/* Resample */
 	if (content->content_audio_frame_rate() != content->output_audio_frame_rate()) {
 		shared_ptr<Resampler> r = resampler (content, true);
-		audio = r->run (audio);
+		pair<shared_ptr<const AudioBuffers>, AudioContent::Frame> ro = r->run (audio, frame);
+		audio = ro.first;
+		frame = ro.second;
+	}
+	
+	Time const relative_time = _film->audio_frames_to_time (frame);
+
+	if (content->trimmed (relative_time)) {
+		return;
 	}
 
+	Time time = content->position() + (content->audio_delay() * TIME_HZ / 1000) + relative_time;
+	
 	/* Remap channels */
 	shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), audio->frames()));
 	dcp_mapped->make_silent ();
@@ -295,8 +339,6 @@ Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers
 
 	audio = dcp_mapped;
 
-	Time time = content->start() + (frame * TIME_HZ / _film->audio_frame_rate()) + (content->audio_delay() * TIME_HZ / 1000);
-
 	/* We must cut off anything that comes before the start of all time */
 	if (time < 0) {
 		int const frames = - time * _film->audio_frame_rate() / TIME_HZ;
@@ -311,48 +353,17 @@ Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers
 		time = 0;
 	}
 
-	/* The time of this audio may indicate that some of our buffered audio is not going to
-	   be added to any more, so it can be emitted.
-	*/
-
-	if (time > _audio_position) {
-		/* We can emit some audio from our buffers */
-		OutputAudioFrame const N = _film->time_to_audio_frames (time - _audio_position);
-		if (N > _audio_buffers.frames()) {
-			/* We need some extra silence before whatever is in the buffers */
-			_audio_buffers.ensure_size (N);
-			_audio_buffers.move (0, N - _audio_buffers.frames(), _audio_buffers.frames ());
-			_audio_buffers.make_silent (0, _audio_buffers.frames());
-			_audio_buffers.set_frames (N);
-		}
-		assert (N <= _audio_buffers.frames());
-		shared_ptr<AudioBuffers> emit (new AudioBuffers (_audio_buffers.channels(), N));
-		emit->copy_from (&_audio_buffers, N, 0, 0);
-		Audio (emit, _audio_position);
-		_audio_position = piece->audio_position = time + _film->audio_frames_to_time (N);
-
-		/* And remove it from our buffers */
-		if (_audio_buffers.frames() > N) {
-			_audio_buffers.move (N, 0, _audio_buffers.frames() - N);
-		}
-		_audio_buffers.set_frames (_audio_buffers.frames() - N);
-	}
-
-	/* Now accumulate the new audio into our buffers */
-	_audio_buffers.ensure_size (_audio_buffers.frames() + audio->frames());
-	_audio_buffers.accumulate_frames (audio.get(), 0, 0, audio->frames ());
-	_audio_buffers.set_frames (_audio_buffers.frames() + audio->frames());
+	_audio_merger.push (audio, time);
+	piece->audio_position += _film->audio_frames_to_time (audio->frames ());
 }
 
 void
 Player::flush ()
 {
-	if (_audio_buffers.frames() > 0) {
-		shared_ptr<AudioBuffers> emit (new AudioBuffers (_audio_buffers.channels(), _audio_buffers.frames()));
-		emit->copy_from (&_audio_buffers, _audio_buffers.frames(), 0, 0);
-		Audio (emit, _audio_position);
-		_audio_position += _film->audio_frames_to_time (_audio_buffers.frames ());
-		_audio_buffers.set_frames (0);
+	TimedAudioBuffers<Time> tb = _audio_merger.flush ();
+	if (tb.audio) {
+		Audio (tb.audio, tb.time);
+		_audio_position += _film->audio_frames_to_time (tb.audio->frames ());
 	}
 
 	while (_video_position < _audio_position) {
@@ -387,18 +398,18 @@ Player::seek (Time t, bool accurate)
 			continue;
 		}
 		
-		Time s = t - vc->start ();
+		Time s = t - vc->position ();
 		s = max (static_cast<Time> (0), s);
-		s = min (vc->length(), s);
+		s = min (vc->length_after_trim(), s);
 
-		(*i)->video_position = (*i)->audio_position = vc->start() + s;
+		(*i)->video_position = (*i)->audio_position = vc->position() + s;
 
 		FrameRateConversion frc (vc->video_frame_rate(), _film->video_frame_rate());
 		/* Here we are converting from time (in the DCP) to a frame number in the content.
 		   Hence we need to use the DCP's frame rate and the double/skip correction, not
 		   the source's rate.
 		*/
-		VideoContent::Frame f = s * _film->video_frame_rate() / (frc.factor() * TIME_HZ);
+		VideoContent::Frame f = (s + vc->trim_start ()) * _film->video_frame_rate() / (frc.factor() * TIME_HZ);
 		dynamic_pointer_cast<VideoDecoder>((*i)->decoder)->seek (f, accurate);
 	}
 
@@ -454,6 +465,18 @@ Player::setup_pieces ()
 			piece->decoder = id;
 		}
 
+		shared_ptr<const MovingImageContent> mc = dynamic_pointer_cast<const MovingImageContent> (*i);
+		if (mc) {
+			shared_ptr<MovingImageDecoder> md;
+
+			if (!md) {
+				md.reset (new MovingImageDecoder (_film, mc));
+				md->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3, _4));
+			}
+
+			piece->decoder = md;
+		}
+
 		shared_ptr<const SndfileContent> sc = dynamic_pointer_cast<const SndfileContent> (*i);
 		if (sc) {
 			shared_ptr<AudioDecoder> sd (new SndfileDecoder (_film, sc));
@@ -482,17 +505,23 @@ Player::content_changed (weak_ptr<Content> w, int property, bool frequent)
 	}
 
 	if (
-		property == ContentProperty::START || property == ContentProperty::LENGTH ||
-		property == VideoContentProperty::VIDEO_CROP || property == VideoContentProperty::VIDEO_RATIO
+		property == ContentProperty::POSITION || property == ContentProperty::LENGTH ||
+		property == ContentProperty::TRIM_START || property == ContentProperty::TRIM_END
 		) {
 		
 		_have_valid_pieces = false;
 		Changed (frequent);
 
 	} else if (property == SubtitleContentProperty::SUBTITLE_OFFSET || property == SubtitleContentProperty::SUBTITLE_SCALE) {
+
 		update_subtitle ();
 		Changed (frequent);
-	} else if (property == VideoContentProperty::VIDEO_FRAME_TYPE) {
+
+	} else if (
+		property == VideoContentProperty::VIDEO_FRAME_TYPE || property == VideoContentProperty::VIDEO_CROP ||
+		property == VideoContentProperty::VIDEO_RATIO
+		) {
+		
 		Changed (frequent);
 	}
 }
@@ -536,14 +565,18 @@ Player::emit_black ()
 	_last_video.reset ();
 #endif
 	
-	/* XXX: use same here */
-	Video (_black_frame, EYES_BOTH, false, _video_position);
+	Video (_black_frame, EYES_BOTH, ColourConversion(), _last_emit_was_black, _video_position);
 	_video_position += _film->video_frames_to_time (1);
+	_last_emit_was_black = true;
 }
 
 void
 Player::emit_silence (OutputAudioFrame most)
 {
+	if (most == 0) {
+		return;
+	}
+	
 	OutputAudioFrame N = min (most, _film->audio_frame_rate() / 2);
 	shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), N));
 	silence->make_silent ();
@@ -616,7 +649,12 @@ Player::update_subtitle ()
 	_out_subtitle.position.x = rint (_video_container_size.width * (in_rect.x + (in_rect.width * (1 - sc->subtitle_scale ()) / 2)));
 	_out_subtitle.position.y = rint (_video_container_size.height * (in_rect.y + (in_rect.height * (1 - sc->subtitle_scale ()) / 2)));
 	
-	_out_subtitle.image = _in_subtitle.image->scale (libdcp::Size (scaled_size.width, scaled_size.height), Scaler::from_id ("bicubic"), true);
-	_out_subtitle.from = _in_subtitle.from + piece->content->start ();
-	_out_subtitle.to = _in_subtitle.to + piece->content->start ();
+	_out_subtitle.image = _in_subtitle.image->scale (
+		scaled_size,
+		Scaler::from_id ("bicubic"),
+		_in_subtitle.image->pixel_format (),
+		true
+		);
+	_out_subtitle.from = _in_subtitle.from + piece->content->position ();
+	_out_subtitle.to = _in_subtitle.to + piece->content->position ();
 }