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[dcpomatic.git] / src / lib / player.cc
index 6ee8c50298d2a2a9a4a1b77e8604b6fdfa8af49c..8cc1849e865f0909001a55374954bca5fbe48247 100644 (file)
@@ -22,8 +22,8 @@
 #include "film.h"
 #include "ffmpeg_decoder.h"
 #include "ffmpeg_content.h"
-#include "imagemagick_decoder.h"
-#include "imagemagick_content.h"
+#include "still_image_decoder.h"
+#include "still_image_content.h"
 #include "sndfile_decoder.h"
 #include "sndfile_content.h"
 #include "subtitle_content.h"
@@ -32,6 +32,7 @@
 #include "image.h"
 #include "ratio.h"
 #include "resampler.h"
+#include "log.h"
 #include "scaler.h"
 
 using std::list;
@@ -45,7 +46,7 @@ using boost::shared_ptr;
 using boost::weak_ptr;
 using boost::dynamic_pointer_cast;
 
-#define DEBUG_PLAYER 1
+//#define DEBUG_PLAYER 1
 
 class Piece
 {
@@ -73,11 +74,11 @@ public:
 std::ostream& operator<<(std::ostream& s, Piece const & p)
 {
        if (dynamic_pointer_cast<FFmpegContent> (p.content)) {
-               s << "\tffmpeg     ";
-       } else if (dynamic_pointer_cast<ImageMagickContent> (p.content)) {
-               s << "\timagemagick";
+               s << "\tffmpeg     ";
+       } else if (dynamic_pointer_cast<StillImageContent> (p.content)) {
+               s << "\tstill image";
        } else if (dynamic_pointer_cast<SndfileContent> (p.content)) {
-               s << "\tsndfile    ";
+               s << "\tsndfile    ";
        }
        
        s << " at " << p.content->start() << " until " << p.content->end();
@@ -94,10 +95,10 @@ 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->dcp_audio_channels(), 0)
+       , _audio_buffers (f->audio_channels(), 0)
 {
        _playlist->Changed.connect (bind (&Player::playlist_changed, this));
-       _playlist->ContentChanged.connect (bind (&Player::content_changed, this, _1, _2));
+       _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 ()));
 }
@@ -126,8 +127,8 @@ Player::pass ()
        cout << "= PASS\n";
 #endif 
 
-        Time earliest_t = TIME_MAX;
-        shared_ptr<Piece> earliest;
+       Time earliest_t = TIME_MAX;
+       shared_ptr<Piece> earliest;
        enum {
                VIDEO,
                AUDIO
@@ -190,6 +191,18 @@ Player::pass ()
                        cout << "Pass " << *earliest << "\n";
 #endif                 
                        earliest->decoder->pass ();
+                       
+                       if (earliest->decoder->done()) {
+                               shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (earliest->content);
+                               assert (ac);
+                               shared_ptr<Resampler> re = resampler (ac, false);
+                               if (re) {
+                                       shared_ptr<const AudioBuffers> b = re->flush ();
+                                       if (b->frames ()) {
+                                               process_audio (earliest, b, ac->audio_length ());
+                                       }
+                               }
+                       }
                }
                break;
        }
@@ -198,11 +211,11 @@ Player::pass ()
        cout << "\tpost pass " << _video_position << " " << _audio_position << "\n";
 #endif 
 
-        return false;
+       return false;
 }
 
 void
-Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image, bool same, VideoContent::Frame frame)
+Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image, Eyes eyes, bool same, VideoContent::Frame frame)
 {
        shared_ptr<Piece> piece = weak_piece.lock ();
        if (!piece) {
@@ -212,7 +225,7 @@ Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image
        shared_ptr<VideoContent> content = dynamic_pointer_cast<VideoContent> (piece->content);
        assert (content);
 
-       FrameRateConversion frc (content->video_frame_rate(), _film->dcp_video_frame_rate());
+       FrameRateConversion frc (content->video_frame_rate(), _film->video_frame_rate());
        if (frc.skip && (frame % 2) == 1) {
                return;
        }
@@ -223,7 +236,7 @@ Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image
        
        work_image = work_image->scale_and_convert_to_rgb (image_size, _film->scaler(), true);
 
-       Time time = content->start() + (frame * frc.factor() * TIME_HZ / _film->dcp_video_frame_rate());
+       Time time = content->start() + (frame * frc.factor() * TIME_HZ / _film->video_frame_rate());
        
        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);
@@ -240,14 +253,14 @@ Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image
 
 #ifdef DCPOMATIC_DEBUG
        _last_video = piece->content;
-#endif 
+#endif
 
-        Video (work_image, same, time);
-       time += TIME_HZ / _film->dcp_video_frame_rate();
+       Video (work_image, eyes, same, time);
+       time += TIME_HZ / _film->video_frame_rate();
 
        if (frc.repeat) {
-               Video (work_image, true, time);
-               time += TIME_HZ / _film->dcp_video_frame_rate();
+               Video (work_image, eyes, true, time);
+               time += TIME_HZ / _film->video_frame_rate();
        }
 
        _video_position = piece->video_position = time;
@@ -266,12 +279,12 @@ Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers
 
        /* Resample */
        if (content->content_audio_frame_rate() != content->output_audio_frame_rate()) {
-               shared_ptr<Resampler> r = resampler (content);
+               shared_ptr<Resampler> r = resampler (content, true);
                audio = r->run (audio);
        }
 
        /* Remap channels */
-       shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->dcp_audio_channels(), audio->frames()));
+       shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), audio->frames()));
        dcp_mapped->make_silent ();
        list<pair<int, libdcp::Channel> > map = content->audio_mapping().content_to_dcp ();
        for (list<pair<int, libdcp::Channel> >::iterator i = map.begin(); i != map.end(); ++i) {
@@ -282,11 +295,14 @@ Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers
 
        audio = dcp_mapped;
 
-       Time time = content->start() + (frame * TIME_HZ / _film->dcp_audio_frame_rate()) + (content->audio_delay() * TIME_HZ / 1000);
+       /* Convert frame to time.  After resampling, the frame time (in the DCP rate) will be T_D where
+          T_D = frame * DCP_rate / original_rate.  Hence the time in seconds is T_D / DCP_rate.
+       */
+       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->dcp_audio_frame_rate() / TIME_HZ;
+               int const frames = - time * _film->audio_frame_rate() / TIME_HZ;
                if (frames >= audio->frames ()) {
                        return;
                }
@@ -298,13 +314,13 @@ 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.
-        */
+       /* 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 (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);
@@ -313,21 +329,21 @@ Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers
                        _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 ());
+               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());
 }
 
@@ -380,12 +396,12 @@ Player::seek (Time t, bool accurate)
 
                (*i)->video_position = (*i)->audio_position = vc->start() + s;
 
-               FrameRateConversion frc (vc->video_frame_rate(), _film->dcp_video_frame_rate());
+               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->dcp_video_frame_rate() / (frc.factor() * TIME_HZ);
+               VideoContent::Frame f = s * _film->video_frame_rate() / (frc.factor() * TIME_HZ);
                dynamic_pointer_cast<VideoDecoder>((*i)->decoder)->seek (f, accurate);
        }
 
@@ -401,41 +417,41 @@ Player::setup_pieces ()
 
        _pieces.clear ();
 
-       Playlist::ContentList content = _playlist->content ();
+       ContentList content = _playlist->content ();
        sort (content.begin(), content.end(), ContentSorter ());
 
-       for (Playlist::ContentList::iterator i = content.begin(); i != content.end(); ++i) {
+       for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
 
                shared_ptr<Piece> piece (new Piece (*i));
 
-                /* XXX: into content? */
+               /* XXX: into content? */
 
                shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
                if (fc) {
                        shared_ptr<FFmpegDecoder> fd (new FFmpegDecoder (_film, fc, _video, _audio));
                        
-                       fd->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3));
+                       fd->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3, _4));
                        fd->Audio.connect (bind (&Player::process_audio, this, piece, _1, _2));
                        fd->Subtitle.connect (bind (&Player::process_subtitle, this, piece, _1, _2, _3, _4));
 
                        piece->decoder = fd;
                }
                
-               shared_ptr<const ImageMagickContent> ic = dynamic_pointer_cast<const ImageMagickContent> (*i);
+               shared_ptr<const StillImageContent> ic = dynamic_pointer_cast<const StillImageContent> (*i);
                if (ic) {
-                       shared_ptr<ImageMagickDecoder> id;
+                       shared_ptr<StillImageDecoder> id;
                        
-                       /* See if we can re-use an old ImageMagickDecoder */
+                       /* See if we can re-use an old StillImageDecoder */
                        for (list<shared_ptr<Piece> >::const_iterator j = old_pieces.begin(); j != old_pieces.end(); ++j) {
-                               shared_ptr<ImageMagickDecoder> imd = dynamic_pointer_cast<ImageMagickDecoder> ((*j)->decoder);
+                               shared_ptr<StillImageDecoder> imd = dynamic_pointer_cast<StillImageDecoder> ((*j)->decoder);
                                if (imd && imd->content() == ic) {
                                        id = imd;
                                }
                        }
 
                        if (!id) {
-                               id.reset (new ImageMagickDecoder (_film, ic));
-                               id->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3));
+                               id.reset (new StillImageDecoder (_film, ic));
+                               id->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3, _4));
                        }
 
                        piece->decoder = id;
@@ -461,7 +477,7 @@ Player::setup_pieces ()
 }
 
 void
-Player::content_changed (weak_ptr<Content> w, int p)
+Player::content_changed (weak_ptr<Content> w, int property, bool frequent)
 {
        shared_ptr<Content> c = w.lock ();
        if (!c) {
@@ -469,16 +485,18 @@ Player::content_changed (weak_ptr<Content> w, int p)
        }
 
        if (
-               p == ContentProperty::START || p == ContentProperty::LENGTH ||
-               p == VideoContentProperty::VIDEO_CROP || p == VideoContentProperty::VIDEO_RATIO
+               property == ContentProperty::START || property == ContentProperty::LENGTH ||
+               property == VideoContentProperty::VIDEO_CROP || property == VideoContentProperty::VIDEO_RATIO
                ) {
                
                _have_valid_pieces = false;
-               Changed ();
+               Changed (frequent);
 
-       } else if (p == SubtitleContentProperty::SUBTITLE_OFFSET || p == SubtitleContentProperty::SUBTITLE_SCALE) {
+       } else if (property == SubtitleContentProperty::SUBTITLE_OFFSET || property == SubtitleContentProperty::SUBTITLE_SCALE) {
                update_subtitle ();
-               Changed ();
+               Changed (frequent);
+       } else if (property == VideoContentProperty::VIDEO_FRAME_TYPE) {
+               Changed (frequent);
        }
 }
 
@@ -486,7 +504,7 @@ void
 Player::playlist_changed ()
 {
        _have_valid_pieces = false;
-       Changed ();
+       Changed (false);
 }
 
 void
@@ -498,12 +516,16 @@ Player::set_video_container_size (libdcp::Size s)
 }
 
 shared_ptr<Resampler>
-Player::resampler (shared_ptr<AudioContent> c)
+Player::resampler (shared_ptr<AudioContent> c, bool create)
 {
        map<shared_ptr<AudioContent>, shared_ptr<Resampler> >::iterator i = _resamplers.find (c);
        if (i != _resamplers.end ()) {
                return i->second;
        }
+
+       if (!create) {
+               return shared_ptr<Resampler> ();
+       }
        
        shared_ptr<Resampler> r (new Resampler (c->content_audio_frame_rate(), c->output_audio_frame_rate(), c->audio_channels()));
        _resamplers[c] = r;
@@ -518,15 +540,15 @@ Player::emit_black ()
 #endif
        
        /* XXX: use same here */
-       Video (_black_frame, false, _video_position);
+       Video (_black_frame, EYES_BOTH, false, _video_position);
        _video_position += _film->video_frames_to_time (1);
 }
 
 void
 Player::emit_silence (OutputAudioFrame most)
 {
-       OutputAudioFrame N = min (most, _film->dcp_audio_frame_rate() / 2);
-       shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->dcp_audio_channels(), N));
+       OutputAudioFrame N = min (most, _film->audio_frame_rate() / 2);
+       shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), N));
        silence->make_silent ();
        Audio (silence, _audio_position);
        _audio_position += _film->audio_frames_to_time (N);
@@ -541,7 +563,7 @@ Player::film_changed (Film::Property p)
        */
 
        if (p == Film::SCALER || p == Film::WITH_SUBTITLES || p == Film::CONTAINER) {
-               Changed ();
+               Changed (false);
        }
 }