/*
- Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2015 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
*/
-#include <stdint.h>
#include "player.h"
#include "film.h"
#include "ffmpeg_decoder.h"
+#include "audio_buffers.h"
#include "ffmpeg_content.h"
#include "image_decoder.h"
#include "image_content.h"
#include "sndfile_decoder.h"
#include "sndfile_content.h"
#include "subtitle_content.h"
-#include "playlist.h"
+#include "subrip_decoder.h"
+#include "subrip_content.h"
+#include "dcp_content.h"
#include "job.h"
#include "image.h"
-#include "image_proxy.h"
+#include "raw_image_proxy.h"
#include "ratio.h"
-#include "resampler.h"
#include "log.h"
-#include "scaler.h"
-#include "player_video_frame.h"
+#include "render_subtitles.h"
+#include "config.h"
+#include "content_video.h"
+#include "player_video.h"
#include "frame_rate_change.h"
+#include "dcp_content.h"
+#include "dcp_decoder.h"
+#include "dcp_subtitle_content.h"
+#include "dcp_subtitle_decoder.h"
+#include "audio_processor.h"
+#include "playlist.h"
+#include <dcp/reel.h>
+#include <dcp/reel_sound_asset.h>
+#include <dcp/reel_subtitle_asset.h>
+#include <dcp/reel_picture_asset.h>
+#include <boost/foreach.hpp>
+#include <stdint.h>
+#include <algorithm>
+#include <iostream>
+
+#include "i18n.h"
-#define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
+#define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
using std::list;
using std::cout;
using std::min;
using std::max;
+using std::min;
using std::vector;
using std::pair;
using std::map;
+using std::make_pair;
+using std::copy;
using boost::shared_ptr;
using boost::weak_ptr;
using boost::dynamic_pointer_cast;
+using boost::optional;
-Player::Player (shared_ptr<const Film> f, shared_ptr<const Playlist> p)
- : _film (f)
- , _playlist (p)
- , _video (true)
- , _audio (true)
+Player::Player (shared_ptr<const Film> film, shared_ptr<const Playlist> playlist)
+ : _film (film)
+ , _playlist (playlist)
, _have_valid_pieces (false)
- , _video_position (0)
- , _audio_position (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)
+ , _ignore_video (false)
+ , _ignore_audio (false)
+ , _always_burn_subtitles (false)
+ , _fast (false)
+ , _play_referenced (false)
{
- _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));
+ _playlist_changed_connection = _playlist->Changed.connect (bind (&Player::playlist_changed, this));
+ _playlist_content_changed_connection = _playlist->ContentChanged.connect (bind (&Player::playlist_content_changed, this, _1, _2, _3));
set_video_container_size (_film->frame_size ());
-}
-void
-Player::disable_video ()
-{
- _video = false;
+ film_changed (Film::AUDIO_PROCESSOR);
}
void
-Player::disable_audio ()
-{
- _audio = false;
-}
-
-bool
-Player::pass ()
+Player::setup_pieces ()
{
- if (!_have_valid_pieces) {
- setup_pieces ();
- }
+ list<shared_ptr<Piece> > old_pieces = _pieces;
+ _pieces.clear ();
- Time earliest_t = TIME_MAX;
- shared_ptr<Piece> earliest;
- enum {
- VIDEO,
- AUDIO
- } type = VIDEO;
+ BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
- for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- if ((*i)->decoder->done () || (*i)->content->length_after_trim() == 0) {
+ if (!i->paths_valid ()) {
continue;
}
- shared_ptr<VideoDecoder> vd = dynamic_pointer_cast<VideoDecoder> ((*i)->decoder);
- shared_ptr<AudioDecoder> ad = dynamic_pointer_cast<AudioDecoder> ((*i)->decoder);
+ shared_ptr<Decoder> decoder;
+ optional<FrameRateChange> frc;
- if (_video && vd) {
- if ((*i)->video_position < earliest_t) {
- earliest_t = (*i)->video_position;
- earliest = *i;
- type = VIDEO;
- }
+ /* FFmpeg */
+ shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (i);
+ if (fc) {
+ decoder.reset (new FFmpegDecoder (fc, _film->log(), _fast));
+ frc = FrameRateChange (fc->video_frame_rate(), _film->video_frame_rate());
}
- if (_audio && ad && ad->has_audio ()) {
- if ((*i)->audio_position < earliest_t) {
- earliest_t = (*i)->audio_position;
- earliest = *i;
- type = AUDIO;
- }
+ shared_ptr<const DCPContent> dc = dynamic_pointer_cast<const DCPContent> (i);
+ if (dc) {
+ decoder.reset (new DCPDecoder (dc, _fast));
+ frc = FrameRateChange (dc->video_frame_rate(), _film->video_frame_rate());
}
- }
- if (!earliest) {
- flush ();
- return true;
- }
+ /* ImageContent */
+ shared_ptr<const ImageContent> ic = dynamic_pointer_cast<const ImageContent> (i);
+ if (ic) {
+ /* See if we can re-use an old ImageDecoder */
+ for (list<shared_ptr<Piece> >::const_iterator j = old_pieces.begin(); j != old_pieces.end(); ++j) {
+ shared_ptr<ImageDecoder> imd = dynamic_pointer_cast<ImageDecoder> ((*j)->decoder);
+ if (imd && imd->content() == ic) {
+ decoder = imd;
+ }
+ }
- switch (type) {
- case VIDEO:
- if (earliest_t > _video_position) {
- emit_black ();
- } else {
- if (earliest->repeating ()) {
- earliest->repeat (this);
- } else {
- earliest->decoder->pass ();
+ if (!decoder) {
+ decoder.reset (new ImageDecoder (ic));
}
+
+ frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate());
}
- break;
-
- case AUDIO:
- if (earliest_t > _audio_position) {
- emit_silence (_film->time_to_audio_frames (earliest_t - _audio_position));
- } else {
- 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() * ac->output_audio_frame_rate() / ac->content_audio_frame_rate(),
- true
- );
- }
+
+ /* SndfileContent */
+ shared_ptr<const SndfileContent> sc = dynamic_pointer_cast<const SndfileContent> (i);
+ if (sc) {
+ decoder.reset (new SndfileDecoder (sc, _fast));
+
+ /* Work out a FrameRateChange for the best overlap video for this content */
+ DCPTime best_overlap_t;
+ shared_ptr<VideoContent> best_overlap;
+ BOOST_FOREACH (shared_ptr<Content> j, _playlist->content ()) {
+ shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (j);
+ if (!vc) {
+ continue;
}
- }
- }
- break;
- }
- if (_audio) {
- boost::optional<Time> audio_done_up_to;
- for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- if ((*i)->decoder->done ()) {
- continue;
+ DCPTime const overlap = min (vc->end(), i->end()) - max (vc->position(), i->position());
+ if (overlap > best_overlap_t) {
+ best_overlap = vc;
+ best_overlap_t = overlap;
+ }
}
- shared_ptr<AudioDecoder> ad = dynamic_pointer_cast<AudioDecoder> ((*i)->decoder);
- if (ad && ad->has_audio ()) {
- audio_done_up_to = min (audio_done_up_to.get_value_or (TIME_MAX), (*i)->audio_position);
+ if (best_overlap) {
+ frc = FrameRateChange (best_overlap->video_frame_rate(), _film->video_frame_rate ());
+ } else {
+ /* No video overlap; e.g. if the DCP is just audio */
+ frc = FrameRateChange (_film->video_frame_rate(), _film->video_frame_rate ());
}
}
- if (audio_done_up_to) {
- TimedAudioBuffers<Time> tb = _audio_merger.pull (audio_done_up_to.get ());
- Audio (tb.audio, tb.time);
- _audio_position += _film->audio_frames_to_time (tb.audio->frames ());
- }
- }
-
- return false;
-}
-
-/** @param extra Amount of extra time to add to the content frame's time (for repeat) */
-void
-Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const ImageProxy> image, Eyes eyes, Part part, bool same, VideoContent::Frame frame, Time extra)
-{
- /* Keep a note of what came in so that we can repeat it if required */
- _last_incoming_video.weak_piece = weak_piece;
- _last_incoming_video.image = image;
- _last_incoming_video.eyes = eyes;
- _last_incoming_video.part = part;
- _last_incoming_video.same = same;
- _last_incoming_video.frame = frame;
- _last_incoming_video.extra = extra;
-
- shared_ptr<Piece> piece = weak_piece.lock ();
- if (!piece) {
- return;
- }
-
- shared_ptr<VideoContent> content = dynamic_pointer_cast<VideoContent> (piece->content);
- assert (content);
+ /* It's questionable whether subtitle content should have a video frame rate; perhaps
+ it should be assumed that any subtitle content has been prepared at the same rate
+ as simultaneous video content (like we do with audio).
+ */
- FrameRateChange frc (content->video_frame_rate(), _film->video_frame_rate());
- if (frc.skip && (frame % 2) == 1) {
- return;
- }
+ /* SubRipContent */
+ shared_ptr<const SubRipContent> rc = dynamic_pointer_cast<const SubRipContent> (i);
+ if (rc) {
+ decoder.reset (new SubRipDecoder (rc));
+ frc = FrameRateChange (rc->subtitle_video_frame_rate(), _film->video_frame_rate());
+ }
- Time const relative_time = (frame * frc.factor() * TIME_HZ / _film->video_frame_rate());
- if (content->trimmed (relative_time)) {
- return;
- }
+ /* DCPSubtitleContent */
+ shared_ptr<const DCPSubtitleContent> dsc = dynamic_pointer_cast<const DCPSubtitleContent> (i);
+ if (dsc) {
+ decoder.reset (new DCPSubtitleDecoder (dsc));
+ frc = FrameRateChange (dsc->subtitle_video_frame_rate(), _film->video_frame_rate());
+ }
- Time const time = content->position() + relative_time + extra - content->trim_start ();
- libdcp::Size const image_size = content->scale().size (content, _video_container_size, _film->frame_size ());
+ shared_ptr<VideoDecoder> vd = dynamic_pointer_cast<VideoDecoder> (decoder);
+ if (vd && _ignore_video) {
+ vd->set_ignore_video ();
+ }
- shared_ptr<PlayerVideoFrame> pi (
- new PlayerVideoFrame (
- image,
- content->crop(),
- image_size,
- _video_container_size,
- _film->scaler(),
- eyes,
- part,
- content->colour_conversion()
- )
- );
-
- if (_film->with_subtitles ()) {
- for (list<Subtitle>::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
- if (i->covers (time)) {
- /* This may be true for more than one of _subtitles, but the last (latest-starting)
- one is the one we want to use, so that's ok.
- */
- Position<int> const container_offset (
- (_video_container_size.width - image_size.width) / 2,
- (_video_container_size.height - image_size.width) / 2
- );
-
- pi->set_subtitle (i->out_image(), i->out_position() + container_offset);
- }
+ shared_ptr<AudioDecoder> ad = dynamic_pointer_cast<AudioDecoder> (decoder);
+ if (ad && _ignore_audio) {
+ ad->set_ignore_audio ();
}
+
+ _pieces.push_back (shared_ptr<Piece> (new Piece (i, decoder, frc.get ())));
}
- /* Clear out old subtitles */
- for (list<Subtitle>::iterator i = _subtitles.begin(); i != _subtitles.end(); ) {
- list<Subtitle>::iterator j = i;
- ++j;
-
- if (i->ends_before (time)) {
- _subtitles.erase (i);
- }
+ _have_valid_pieces = true;
+}
- i = j;
+void
+Player::playlist_content_changed (weak_ptr<Content> w, int property, bool frequent)
+{
+ shared_ptr<Content> c = w.lock ();
+ if (!c) {
+ return;
}
-#ifdef DCPOMATIC_DEBUG
- _last_video = piece->content;
-#endif
+ if (
+ property == ContentProperty::POSITION ||
+ property == ContentProperty::LENGTH ||
+ property == ContentProperty::TRIM_START ||
+ property == ContentProperty::TRIM_END ||
+ property == ContentProperty::PATH ||
+ property == VideoContentProperty::VIDEO_FRAME_TYPE ||
+ property == DCPContentProperty::CAN_BE_PLAYED
+ ) {
- Video (pi, same, time);
+ _have_valid_pieces = false;
+ Changed (frequent);
- _last_emit_was_black = false;
- _video_position = piece->video_position = (time + TIME_HZ / _film->video_frame_rate());
+ } else if (
+ property == SubtitleContentProperty::USE_SUBTITLES ||
+ property == SubtitleContentProperty::SUBTITLE_X_OFFSET ||
+ property == SubtitleContentProperty::SUBTITLE_Y_OFFSET ||
+ property == SubtitleContentProperty::SUBTITLE_X_SCALE ||
+ property == SubtitleContentProperty::SUBTITLE_Y_SCALE ||
+ property == SubtitleContentProperty::FONTS ||
+ property == VideoContentProperty::VIDEO_CROP ||
+ property == VideoContentProperty::VIDEO_SCALE ||
+ property == VideoContentProperty::VIDEO_FRAME_RATE ||
+ property == VideoContentProperty::VIDEO_FADE_IN ||
+ property == VideoContentProperty::VIDEO_FADE_OUT ||
+ property == VideoContentProperty::COLOUR_CONVERSION
+ ) {
- if (frc.repeat > 1 && !piece->repeating ()) {
- piece->set_repeat (_last_incoming_video, frc.repeat - 1);
+ Changed (frequent);
}
}
-/** @param already_resampled true if this data has already been through the chain up to the resampler */
void
-Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers> audio, AudioContent::Frame frame, bool already_resampled)
+Player::set_video_container_size (dcp::Size s)
{
- shared_ptr<Piece> piece = weak_piece.lock ();
- if (!piece) {
- return;
- }
+ _video_container_size = s;
- shared_ptr<AudioContent> content = dynamic_pointer_cast<AudioContent> (piece->content);
- assert (content);
+ _black_image.reset (new Image (PIX_FMT_RGB24, _video_container_size, true));
+ _black_image->make_black ();
+}
- if (!already_resampled) {
- /* 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);
- 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);
+void
+Player::playlist_changed ()
+{
+ _have_valid_pieces = false;
+ Changed (false);
+}
- if (content->trimmed (relative_time)) {
- return;
- }
+void
+Player::film_changed (Film::Property p)
+{
+ /* Here we should notice Film properties that affect our output, and
+ alert listeners that our output now would be different to how it was
+ last time we were run.
+ */
- Time time = content->position() + (content->audio_delay() * TIME_HZ / 1000) + relative_time - content->trim_start ();
-
- /* Remap channels */
- shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), audio->frames()));
- dcp_mapped->make_silent ();
-
- AudioMapping map = content->audio_mapping ();
- for (int i = 0; i < map.content_channels(); ++i) {
- for (int j = 0; j < _film->audio_channels(); ++j) {
- if (map.get (i, static_cast<libdcp::Channel> (j)) > 0) {
- dcp_mapped->accumulate_channel (
- audio.get(),
- i,
- static_cast<libdcp::Channel> (j),
- map.get (i, static_cast<libdcp::Channel> (j))
- );
- }
+ if (p == Film::CONTAINER) {
+ Changed (false);
+ } else if (p == Film::VIDEO_FRAME_RATE) {
+ /* Pieces contain a FrameRateChange which contains the DCP frame rate,
+ so we need new pieces here.
+ */
+ _have_valid_pieces = false;
+ Changed (false);
+ } else if (p == Film::AUDIO_PROCESSOR) {
+ if (_film->audio_processor ()) {
+ _audio_processor = _film->audio_processor()->clone (_film->audio_frame_rate ());
}
}
+}
- audio = dcp_mapped;
+list<PositionImage>
+Player::transform_image_subtitles (list<ImageSubtitle> subs) const
+{
+ list<PositionImage> all;
- /* 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;
- if (frames >= audio->frames ()) {
- return;
+ for (list<ImageSubtitle>::const_iterator i = subs.begin(); i != subs.end(); ++i) {
+ if (!i->image) {
+ continue;
}
- shared_ptr<AudioBuffers> trimmed (new AudioBuffers (audio->channels(), audio->frames() - frames));
- trimmed->copy_from (audio.get(), audio->frames() - frames, frames, 0);
-
- audio = trimmed;
- time = 0;
+ /* We will scale the subtitle up to fit _video_container_size */
+ dcp::Size scaled_size (i->rectangle.width * _video_container_size.width, i->rectangle.height * _video_container_size.height);
+
+ /* Then we need a corrective translation, consisting of two parts:
+ *
+ * 1. that which is the result of the scaling of the subtitle by _video_container_size; this will be
+ * rect.x * _video_container_size.width and rect.y * _video_container_size.height.
+ *
+ * 2. that to shift the origin of the scale by subtitle_scale to the centre of the subtitle; this will be
+ * (width_before_subtitle_scale * (1 - subtitle_x_scale) / 2) and
+ * (height_before_subtitle_scale * (1 - subtitle_y_scale) / 2).
+ *
+ * Combining these two translations gives these expressions.
+ */
+
+ all.push_back (
+ PositionImage (
+ i->image->scale (
+ scaled_size,
+ dcp::YUV_TO_RGB_REC601,
+ i->image->pixel_format (),
+ true
+ ),
+ Position<int> (
+ lrint (_video_container_size.width * i->rectangle.x),
+ lrint (_video_container_size.height * i->rectangle.y)
+ )
+ )
+ );
}
- _audio_merger.push (audio, time);
- piece->audio_position += _film->audio_frames_to_time (audio->frames ());
+ return all;
}
-void
-Player::flush ()
+shared_ptr<PlayerVideo>
+Player::black_player_video_frame (DCPTime time) const
{
- TimedAudioBuffers<Time> tb = _audio_merger.flush ();
- if (_audio && tb.audio) {
- Audio (tb.audio, tb.time);
- _audio_position += _film->audio_frames_to_time (tb.audio->frames ());
- }
-
- while (_video && _video_position < _audio_position) {
- emit_black ();
- }
-
- while (_audio && _audio_position < _video_position) {
- emit_silence (_film->time_to_audio_frames (_video_position - _audio_position));
- }
-
+ return shared_ptr<PlayerVideo> (
+ new PlayerVideo (
+ shared_ptr<const ImageProxy> (new RawImageProxy (_black_image)),
+ time,
+ Crop (),
+ optional<double> (),
+ _video_container_size,
+ _video_container_size,
+ EYES_BOTH,
+ PART_WHOLE,
+ PresetColourConversion::all().front().conversion
+ )
+ );
}
-/** Seek so that the next pass() will yield (approximately) the requested frame.
- * Pass accurate = true to try harder to get close to the request.
- * @return true on error
+/** @return All PlayerVideos at the given time. There may be none if the content
+ * at `time' is a DCP which we are passing through (i.e. referring to by reference)
+ * or 2 if we have 3D.
*/
-void
-Player::seek (Time t, bool accurate)
+list<shared_ptr<PlayerVideo> >
+Player::get_video (DCPTime time, bool accurate)
{
if (!_have_valid_pieces) {
setup_pieces ();
}
- if (_pieces.empty ()) {
- return;
+ /* Find subtitles for possible burn-in */
+
+ PlayerSubtitles ps = get_subtitles (time, DCPTime::from_frames (1, _film->video_frame_rate ()), false, true);
+
+ list<PositionImage> sub_images;
+
+ /* Image subtitles */
+ list<PositionImage> c = transform_image_subtitles (ps.image);
+ copy (c.begin(), c.end(), back_inserter (sub_images));
+
+ /* Text subtitles (rendered to an image) */
+ if (!ps.text.empty ()) {
+ list<PositionImage> s = render_subtitles (ps.text, ps.fonts, _video_container_size);
+ copy (s.begin (), s.end (), back_inserter (sub_images));
}
- for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> ((*i)->content);
- if (!vc) {
- continue;
- }
+ optional<PositionImage> subtitles;
+ if (!sub_images.empty ()) {
+ subtitles = merge (sub_images);
+ }
+
+ /* Find pieces containing video which is happening now */
- /* s is the offset of t from the start position of this content */
- Time s = t - vc->position ();
- s = max (static_cast<Time> (0), s);
- s = min (vc->length_after_trim(), s);
+ list<shared_ptr<Piece> > ov = overlaps<VideoContent> (
+ time,
+ time + DCPTime::from_frames (1, _film->video_frame_rate ()) - DCPTime::delta()
+ );
- /* Hence set the piece positions to the `global' time */
- (*i)->video_position = (*i)->audio_position = vc->position() + s;
+ list<shared_ptr<PlayerVideo> > pvf;
- /* And seek the decoder */
- dynamic_pointer_cast<VideoDecoder>((*i)->decoder)->seek (
- vc->time_to_content_video_frames (s + vc->trim_start ()), accurate
- );
+ if (ov.empty ()) {
+ /* No video content at this time */
+ pvf.push_back (black_player_video_frame (time));
+ } else {
+ /* Some video content at this time */
+ shared_ptr<Piece> last = *(ov.rbegin ());
+ VideoFrameType const last_type = dynamic_pointer_cast<VideoContent> (last->content)->video_frame_type ();
+
+ /* Get video from appropriate piece(s) */
+ BOOST_FOREACH (shared_ptr<Piece> piece, ov) {
+
+ shared_ptr<VideoDecoder> decoder = dynamic_pointer_cast<VideoDecoder> (piece->decoder);
+ DCPOMATIC_ASSERT (decoder);
+ shared_ptr<VideoContent> video_content = dynamic_pointer_cast<VideoContent> (piece->content);
+ DCPOMATIC_ASSERT (video_content);
+
+ shared_ptr<DCPContent> dcp_content = dynamic_pointer_cast<DCPContent> (video_content);
+ if (dcp_content && dcp_content->reference_video () && !_play_referenced) {
+ continue;
+ }
- (*i)->reset_repeat ();
+ bool const use =
+ /* always use the last video */
+ piece == last ||
+ /* with a corresponding L/R eye if appropriate */
+ (last_type == VIDEO_FRAME_TYPE_3D_LEFT && video_content->video_frame_type() == VIDEO_FRAME_TYPE_3D_RIGHT) ||
+ (last_type == VIDEO_FRAME_TYPE_3D_RIGHT && video_content->video_frame_type() == VIDEO_FRAME_TYPE_3D_LEFT);
+
+ if (use) {
+ /* We want to use this piece */
+ list<ContentVideo> content_video = decoder->get_video (dcp_to_content_video (piece, time), accurate);
+ if (content_video.empty ()) {
+ pvf.push_back (black_player_video_frame (time));
+ } else {
+ dcp::Size image_size = video_content->scale().size (video_content, _video_container_size, _film->frame_size ());
+
+ for (list<ContentVideo>::const_iterator i = content_video.begin(); i != content_video.end(); ++i) {
+ pvf.push_back (
+ shared_ptr<PlayerVideo> (
+ new PlayerVideo (
+ i->image,
+ content_video_to_dcp (piece, i->frame),
+ video_content->crop (),
+ video_content->fade (i->frame),
+ image_size,
+ _video_container_size,
+ i->eyes,
+ i->part,
+ video_content->colour_conversion ()
+ )
+ )
+ );
+ }
+ }
+ } else {
+ /* Discard unused video */
+ decoder->get_video (dcp_to_content_video (piece, time), accurate);
+ }
+ }
}
- _video_position = _audio_position = t;
+ if (subtitles) {
+ BOOST_FOREACH (shared_ptr<PlayerVideo> p, pvf) {
+ p->set_subtitle (subtitles.get ());
+ }
+ }
- /* XXX: don't seek audio because we don't need to... */
+ return pvf;
}
-void
-Player::setup_pieces ()
+/** @return Audio data or 0 if the only audio data here is referenced DCP data */
+shared_ptr<AudioBuffers>
+Player::get_audio (DCPTime time, DCPTime length, bool accurate)
{
- list<shared_ptr<Piece> > old_pieces = _pieces;
+ if (!_have_valid_pieces) {
+ setup_pieces ();
+ }
- _pieces.clear ();
+ Frame const length_frames = length.frames_round (_film->audio_frame_rate ());
- ContentList content = _playlist->content ();
- sort (content.begin(), content.end(), ContentSorter ());
+ shared_ptr<AudioBuffers> audio (new AudioBuffers (_film->audio_channels(), length_frames));
+ audio->make_silent ();
- for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
+ list<shared_ptr<Piece> > ov = overlaps<AudioContent> (time, time + length);
+ if (ov.empty ()) {
+ return audio;
+ }
- if (!(*i)->paths_valid ()) {
- continue;
+ bool all_referenced = true;
+ BOOST_FOREACH (shared_ptr<Piece> i, ov) {
+ shared_ptr<AudioContent> audio_content = dynamic_pointer_cast<AudioContent> (i->content);
+ shared_ptr<DCPContent> dcp_content = dynamic_pointer_cast<DCPContent> (i->content);
+ if (audio_content && (!dcp_content || !dcp_content->reference_audio ())) {
+ /* There is audio content which is not from a DCP or not set to be referenced */
+ all_referenced = false;
}
+ }
- shared_ptr<Piece> piece (new Piece (*i));
-
- /* XXX: into content? */
+ if (all_referenced && !_play_referenced) {
+ return shared_ptr<AudioBuffers> ();
+ }
- 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, weak_ptr<Piece> (piece), _1, _2, _3, _4, _5, 0));
- fd->Audio.connect (bind (&Player::process_audio, this, weak_ptr<Piece> (piece), _1, _2, false));
- fd->Subtitle.connect (bind (&Player::process_subtitle, this, weak_ptr<Piece> (piece), _1, _2, _3, _4));
-
- fd->seek (fc->time_to_content_video_frames (fc->trim_start ()), true);
- piece->decoder = fd;
+ BOOST_FOREACH (shared_ptr<Piece> i, ov) {
+
+ shared_ptr<AudioContent> content = dynamic_pointer_cast<AudioContent> (i->content);
+ DCPOMATIC_ASSERT (content);
+ shared_ptr<AudioDecoder> decoder = dynamic_pointer_cast<AudioDecoder> (i->decoder);
+ DCPOMATIC_ASSERT (decoder);
+
+ /* The time that we should request from the content */
+ DCPTime request = time - DCPTime::from_seconds (content->audio_delay() / 1000.0);
+ Frame request_frames = length_frames;
+ DCPTime offset;
+ if (request < DCPTime ()) {
+ /* We went off the start of the content, so we will need to offset
+ the stuff we get back.
+ */
+ offset = -request;
+ request_frames += request.frames_round (_film->audio_frame_rate ());
+ if (request_frames < 0) {
+ request_frames = 0;
+ }
+ request = DCPTime ();
}
-
- shared_ptr<const ImageContent> ic = dynamic_pointer_cast<const ImageContent> (*i);
- if (ic) {
- bool reusing = false;
-
- /* See if we can re-use an old ImageDecoder */
- for (list<shared_ptr<Piece> >::const_iterator j = old_pieces.begin(); j != old_pieces.end(); ++j) {
- shared_ptr<ImageDecoder> imd = dynamic_pointer_cast<ImageDecoder> ((*j)->decoder);
- if (imd && imd->content() == ic) {
- piece = *j;
- reusing = true;
+
+ Frame const content_frame = dcp_to_resampled_audio (i, request);
+
+ BOOST_FOREACH (AudioStreamPtr j, content->audio_streams ()) {
+
+ if (j->channels() == 0) {
+ /* Some content (e.g. DCPs) can have streams with no channels */
+ continue;
+ }
+
+ /* Audio from this piece's decoder stream (which might be more or less than what we asked for) */
+ ContentAudio all = decoder->get_audio (j, content_frame, request_frames, accurate);
+
+ /* Gain */
+ if (content->audio_gain() != 0) {
+ shared_ptr<AudioBuffers> gain (new AudioBuffers (all.audio));
+ gain->apply_gain (content->audio_gain ());
+ all.audio = gain;
+ }
+
+ /* Remap channels */
+ shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), all.audio->frames()));
+ dcp_mapped->make_silent ();
+ AudioMapping map = j->mapping ();
+ for (int i = 0; i < map.input_channels(); ++i) {
+ for (int j = 0; j < _film->audio_channels(); ++j) {
+ if (map.get (i, j) > 0) {
+ dcp_mapped->accumulate_channel (
+ all.audio.get(),
+ i,
+ j,
+ map.get (i, j)
+ );
+ }
}
}
- if (!reusing) {
- shared_ptr<ImageDecoder> id (new ImageDecoder (_film, ic));
- id->Video.connect (bind (&Player::process_video, this, weak_ptr<Piece> (piece), _1, _2, _3, _4, _5, 0));
- piece->decoder = id;
+ if (_audio_processor) {
+ dcp_mapped = _audio_processor->run (dcp_mapped, _film->audio_channels ());
}
- }
- shared_ptr<const SndfileContent> sc = dynamic_pointer_cast<const SndfileContent> (*i);
- if (sc) {
- shared_ptr<AudioDecoder> sd (new SndfileDecoder (_film, sc));
- sd->Audio.connect (bind (&Player::process_audio, this, weak_ptr<Piece> (piece), _1, _2, false));
+ all.audio = dcp_mapped;
- piece->decoder = sd;
+ audio->accumulate_frames (
+ all.audio.get(),
+ content_frame - all.frame,
+ offset.frames_round (_film->audio_frame_rate()),
+ min (Frame (all.audio->frames()), request_frames)
+ );
}
-
- _pieces.push_back (piece);
}
- _have_valid_pieces = true;
+ return audio;
}
-void
-Player::content_changed (weak_ptr<Content> w, int property, bool frequent)
+Frame
+Player::dcp_to_content_video (shared_ptr<const Piece> piece, DCPTime t) const
{
- shared_ptr<Content> c = w.lock ();
- if (!c) {
- return;
- }
+ shared_ptr<const VideoContent> vc = dynamic_pointer_cast<const VideoContent> (piece->content);
+ DCPTime s = t - piece->content->position ();
+ s = min (piece->content->length_after_trim(), s);
+ s = max (DCPTime(), s + DCPTime (piece->content->trim_start(), piece->frc));
- if (
- property == ContentProperty::POSITION || property == ContentProperty::LENGTH ||
- property == ContentProperty::TRIM_START || property == ContentProperty::TRIM_END ||
- property == VideoContentProperty::VIDEO_FRAME_TYPE
- ) {
-
- _have_valid_pieces = false;
- Changed (frequent);
+ /* It might seem more logical here to convert s to a ContentTime (using the FrameRateChange)
+ then convert that ContentTime to frames at the content's rate. However this fails for
+ situations like content at 29.9978733fps, DCP at 30fps. The accuracy of the Time type is not
+ enough to distinguish between the two with low values of time (e.g. 3200 in Time units).
- } else if (
- property == SubtitleContentProperty::SUBTITLE_X_OFFSET ||
- property == SubtitleContentProperty::SUBTITLE_Y_OFFSET ||
- property == SubtitleContentProperty::SUBTITLE_X_SCALE ||
- property == SubtitleContentProperty::SUBTITLE_Y_SCALE
- ) {
-
- for (list<Subtitle>::iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
- i->update (_film, _video_container_size);
- }
-
- Changed (frequent);
+ Instead we convert the DCPTime using the DCP video rate then account for any skip/repeat.
+ */
+ return s.frames_floor (piece->frc.dcp) / piece->frc.factor ();
+}
- } else if (
- property == VideoContentProperty::VIDEO_CROP || property == VideoContentProperty::VIDEO_SCALE ||
- property == VideoContentProperty::VIDEO_FRAME_RATE
- ) {
-
- Changed (frequent);
+DCPTime
+Player::content_video_to_dcp (shared_ptr<const Piece> piece, Frame f) const
+{
+ shared_ptr<const VideoContent> vc = dynamic_pointer_cast<const VideoContent> (piece->content);
+ /* See comment in dcp_to_content_video */
+ DCPTime const d = DCPTime::from_frames (f * piece->frc.factor(), piece->frc.dcp) - DCPTime (piece->content->trim_start (), piece->frc);
+ return max (DCPTime (), d + piece->content->position ());
+}
- } else if (property == ContentProperty::PATH) {
+Frame
+Player::dcp_to_resampled_audio (shared_ptr<const Piece> piece, DCPTime t) const
+{
+ DCPTime s = t - piece->content->position ();
+ s = min (piece->content->length_after_trim(), s);
+ /* See notes in dcp_to_content_video */
+ return max (DCPTime (), DCPTime (piece->content->trim_start (), piece->frc) + s).frames_floor (_film->audio_frame_rate ());
+}
- _have_valid_pieces = false;
- Changed (frequent);
- }
+ContentTime
+Player::dcp_to_content_subtitle (shared_ptr<const Piece> piece, DCPTime t) const
+{
+ DCPTime s = t - piece->content->position ();
+ s = min (piece->content->length_after_trim(), s);
+ return max (ContentTime (), ContentTime (s, piece->frc) + piece->content->trim_start());
}
-void
-Player::playlist_changed ()
+DCPTime
+Player::content_subtitle_to_dcp (shared_ptr<const Piece> piece, ContentTime t) const
{
- _have_valid_pieces = false;
- Changed (false);
+ return max (DCPTime (), DCPTime (t - piece->content->trim_start(), piece->frc) + piece->content->position());
}
-void
-Player::set_video_container_size (libdcp::Size s)
+/** @param burnt true to return only subtitles to be burnt, false to return only
+ * subtitles that should not be burnt. This parameter will be ignored if
+ * _always_burn_subtitles is true; in this case, all subtitles will be returned.
+ */
+PlayerSubtitles
+Player::get_subtitles (DCPTime time, DCPTime length, bool starting, bool burnt)
{
- _video_container_size = s;
+ list<shared_ptr<Piece> > subs = overlaps<SubtitleContent> (time, time + length);
- shared_ptr<Image> im (new Image (PIX_FMT_RGB24, _video_container_size, true));
- im->make_black ();
-
- _black_frame.reset (
- new PlayerVideoFrame (
- shared_ptr<ImageProxy> (new RawImageProxy (im, _film->log ())),
- Crop(),
- _video_container_size,
- _video_container_size,
- Scaler::from_id ("bicubic"),
- EYES_BOTH,
- PART_WHOLE,
- ColourConversion ()
- )
- );
+ PlayerSubtitles ps (time, length);
+
+ for (list<shared_ptr<Piece> >::const_iterator j = subs.begin(); j != subs.end(); ++j) {
+ shared_ptr<SubtitleContent> subtitle_content = dynamic_pointer_cast<SubtitleContent> ((*j)->content);
+ if (!subtitle_content->use_subtitles () || (!_always_burn_subtitles && (burnt != subtitle_content->burn_subtitles ()))) {
+ continue;
+ }
+
+ shared_ptr<DCPContent> dcp_content = dynamic_pointer_cast<DCPContent> (subtitle_content);
+ if (dcp_content && dcp_content->reference_subtitle () && !_play_referenced) {
+ continue;
+ }
+
+ shared_ptr<SubtitleDecoder> subtitle_decoder = dynamic_pointer_cast<SubtitleDecoder> ((*j)->decoder);
+ ContentTime const from = dcp_to_content_subtitle (*j, time);
+ /* XXX: this video_frame_rate() should be the rate that the subtitle content has been prepared for */
+ ContentTime const to = from + ContentTime::from_frames (1, _film->video_frame_rate ());
+
+ list<ContentImageSubtitle> image = subtitle_decoder->get_image_subtitles (ContentTimePeriod (from, to), starting);
+ for (list<ContentImageSubtitle>::iterator i = image.begin(); i != image.end(); ++i) {
+
+ /* Apply content's subtitle offsets */
+ i->sub.rectangle.x += subtitle_content->subtitle_x_offset ();
+ i->sub.rectangle.y += subtitle_content->subtitle_y_offset ();
+
+ /* Apply content's subtitle scale */
+ i->sub.rectangle.width *= subtitle_content->subtitle_x_scale ();
+ i->sub.rectangle.height *= subtitle_content->subtitle_y_scale ();
+
+ /* Apply a corrective translation to keep the subtitle centred after that scale */
+ i->sub.rectangle.x -= i->sub.rectangle.width * (subtitle_content->subtitle_x_scale() - 1);
+ i->sub.rectangle.y -= i->sub.rectangle.height * (subtitle_content->subtitle_y_scale() - 1);
+
+ ps.image.push_back (i->sub);
+ }
+
+ list<ContentTextSubtitle> text = subtitle_decoder->get_text_subtitles (ContentTimePeriod (from, to), starting);
+ BOOST_FOREACH (ContentTextSubtitle& ts, text) {
+ BOOST_FOREACH (dcp::SubtitleString s, ts.subs) {
+ s.set_h_position (s.h_position() + subtitle_content->subtitle_x_offset ());
+ s.set_v_position (s.v_position() + subtitle_content->subtitle_y_offset ());
+ float const xs = subtitle_content->subtitle_x_scale();
+ float const ys = subtitle_content->subtitle_y_scale();
+ float const average = s.size() * (xs + ys) / 2;
+ s.set_size (average);
+ if (fabs (1.0 - xs / ys) > dcp::ASPECT_ADJUST_EPSILON) {
+ s.set_aspect_adjust (xs / ys);
+ }
+ s.set_in (dcp::Time(content_subtitle_to_dcp (*j, ts.period().from).seconds()));
+ s.set_out (dcp::Time(content_subtitle_to_dcp (*j, ts.period().to).seconds()));
+ ps.text.push_back (s);
+ ps.add_fonts (subtitle_content->fonts ());
+ }
+ }
+ }
+
+ return ps;
}
-shared_ptr<Resampler>
-Player::resampler (shared_ptr<AudioContent> c, bool create)
+list<shared_ptr<Font> >
+Player::get_subtitle_fonts ()
{
- map<shared_ptr<AudioContent>, shared_ptr<Resampler> >::iterator i = _resamplers.find (c);
- if (i != _resamplers.end ()) {
- return i->second;
+ if (!_have_valid_pieces) {
+ setup_pieces ();
}
- if (!create) {
- return shared_ptr<Resampler> ();
+ list<shared_ptr<Font> > fonts;
+ BOOST_FOREACH (shared_ptr<Piece>& p, _pieces) {
+ shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (p->content);
+ if (sc) {
+ /* XXX: things may go wrong if there are duplicate font IDs
+ with different font files.
+ */
+ list<shared_ptr<Font> > f = sc->fonts ();
+ copy (f.begin(), f.end(), back_inserter (fonts));
+ }
}
- LOG_GENERAL (
- "Creating new resampler for %1 to %2 with %3 channels", c->content_audio_frame_rate(), c->output_audio_frame_rate(), c->audio_channels()
- );
-
- shared_ptr<Resampler> r (new Resampler (c->content_audio_frame_rate(), c->output_audio_frame_rate(), c->audio_channels()));
- _resamplers[c] = r;
- return r;
+ return fonts;
}
+/** Set this player never to produce any video data */
void
-Player::emit_black ()
+Player::set_ignore_video ()
{
-#ifdef DCPOMATIC_DEBUG
- _last_video.reset ();
-#endif
-
- Video (_black_frame, _last_emit_was_black, _video_position);
- _video_position += _film->video_frames_to_time (1);
- _last_emit_was_black = true;
+ _ignore_video = true;
}
+/** Set this player never to produce any audio data */
void
-Player::emit_silence (OutputAudioFrame most)
+Player::set_ignore_audio ()
{
- 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 ();
- Audio (silence, _audio_position);
- _audio_position += _film->audio_frames_to_time (N);
+ _ignore_audio = true;
}
+/** Set whether or not this player should always burn text subtitles into the image,
+ * regardless of the content settings.
+ * @param burn true to always burn subtitles, false to obey content settings.
+ */
void
-Player::film_changed (Film::Property p)
+Player::set_always_burn_subtitles (bool burn)
{
- /* Here we should notice Film properties that affect our output, and
- alert listeners that our output now would be different to how it was
- last time we were run.
- */
+ _always_burn_subtitles = burn;
+}
- if (p == Film::SCALER || p == Film::WITH_SUBTITLES || p == Film::CONTAINER || p == Film::VIDEO_FRAME_RATE) {
- Changed (false);
- }
+void
+Player::set_fast ()
+{
+ _fast = true;
+ _have_valid_pieces = false;
}
void
-Player::process_subtitle (weak_ptr<Piece> weak_piece, shared_ptr<Image> image, dcpomatic::Rect<double> rect, Time from, Time to)
+Player::set_play_referenced ()
{
- if (!image) {
- /* A null image means that we should stop any current subtitles at `from' */
- for (list<Subtitle>::iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
- i->set_stop (from);
- }
- } else {
- _subtitles.push_back (Subtitle (_film, _video_container_size, weak_piece, image, rect, from, to));
- }
+ _play_referenced = true;
+ _have_valid_pieces = false;
}
-/** Re-emit the last frame that was emitted, using current settings for crop, ratio, scaler and subtitles.
- * @return false if this could not be done.
- */
-bool
-Player::repeat_last_video ()
+list<shared_ptr<dcp::ReelAsset> >
+Player::get_reel_assets ()
{
- if (!_last_incoming_video.image || !_have_valid_pieces) {
- return false;
- }
+ list<shared_ptr<dcp::ReelAsset> > a;
- process_video (
- _last_incoming_video.weak_piece,
- _last_incoming_video.image,
- _last_incoming_video.eyes,
- _last_incoming_video.part,
- _last_incoming_video.same,
- _last_incoming_video.frame,
- _last_incoming_video.extra
- );
+ BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
+ shared_ptr<DCPContent> j = dynamic_pointer_cast<DCPContent> (i);
+ if (!j) {
+ continue;
+ }
+ /* XXX: hack hack hack */
+ DCPDecoder decoder (j, false);
+ if (j->reference_video ()) {
+ a.push_back (decoder.reels().front()->main_picture ());
+ }
+ if (j->reference_audio ()) {
+ a.push_back (decoder.reels().front()->main_sound ());
+ }
+ if (j->reference_subtitle ()) {
+ a.push_back (decoder.reels().front()->main_subtitle ());
+ }
+ }
- return true;
+ return a;
}
projects / dcpomatic.git / blobdiff