/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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,
+ DCP-o-matic 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.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
-#include <stdint.h>
#include "player.h"
#include "film.h"
-#include "ffmpeg_decoder.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 "audio_buffers.h"
+#include "content_audio.h"
+#include "dcp_content.h"
#include "job.h"
#include "image.h"
+#include "raw_image_proxy.h"
#include "ratio.h"
#include "log.h"
-#include "scaler.h"
+#include "render_subtitles.h"
+#include "config.h"
+#include "content_video.h"
+#include "player_video.h"
+#include "frame_rate_change.h"
+#include "audio_processor.h"
+#include "playlist.h"
+#include "referenced_reel_asset.h"
+#include "decoder_factory.h"
+#include "decoder.h"
+#include "video_decoder.h"
+#include "audio_decoder.h"
+#include "subtitle_content.h"
+#include "subtitle_decoder.h"
+#include "ffmpeg_content.h"
+#include "audio_content.h"
+#include "content_subtitle.h"
+#include "dcp_decoder.h"
+#include "image_decoder.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__), 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;
+using boost::scoped_ptr;
-class Piece
-{
-public:
- Piece (shared_ptr<Content> c, shared_ptr<Decoder> d, FrameRateChange f)
- : content (c)
- , decoder (d)
- , frc (f)
- {}
-
- shared_ptr<Content> content;
- shared_ptr<Decoder> decoder;
- FrameRateChange frc;
-};
-
-Player::Player (shared_ptr<const Film> f, shared_ptr<const Playlist> p)
- : _film (f)
- , _playlist (p)
- , _video (true)
- , _audio (true)
- , _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)
- , _just_did_inaccurate_seek (false)
- , _approximate_size (false)
+static bool
+has_video (Content* c)
{
- _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 ()));
+ return static_cast<bool>(c->video);
}
-void
-Player::disable_video ()
+static bool
+has_audio (Content* c)
{
- _video = false;
+ return static_cast<bool>(c->audio);
}
-void
-Player::disable_audio ()
+static bool
+has_subtitle (Content* c)
{
- _audio = false;
+ return static_cast<bool>(c->subtitle);
}
-bool
-Player::pass ()
+Player::Player (shared_ptr<const Film> film, shared_ptr<const Playlist> playlist)
+ : _film (film)
+ , _playlist (playlist)
+ , _have_valid_pieces (false)
+ , _ignore_video (false)
+ , _ignore_audio (false)
+ , _always_burn_subtitles (false)
+ , _fast (false)
+ , _play_referenced (false)
{
- if (!_have_valid_pieces) {
- setup_pieces ();
- }
-
- /* Interrogate all our pieces to find the one with the earliest decoded data */
+ _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 ());
- shared_ptr<Piece> earliest_piece;
- shared_ptr<Decoded> earliest_decoded;
- DCPTime earliest_time = TIME_MAX;
- DCPTime earliest_audio = TIME_MAX;
+ film_changed (Film::AUDIO_PROCESSOR);
+}
- for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
+void
+Player::setup_pieces ()
+{
+ _pieces.clear ();
- shared_ptr<Decoded> dec = (*i)->decoder->peek ();
+ BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
- if (dec) {
- dec->set_dcp_times ((*i)->frc.speed_up, (*i)->content->position());
+ if (!i->paths_valid ()) {
+ continue;
}
- if (dec && dec->dcp_time < earliest_time) {
- earliest_piece = *i;
- earliest_decoded = dec;
- earliest_time = dec->dcp_time;
- }
+ shared_ptr<Decoder> decoder = decoder_factory (i, _film->log());
+ FrameRateChange frc (i->active_video_frame_rate(), _film->video_frame_rate());
- if (dynamic_pointer_cast<DecodedAudio> (dec) && dec->dcp_time < earliest_audio) {
- earliest_audio = dec->dcp_time;
+ if (!decoder) {
+ /* Not something that we can decode; e.g. Atmos content */
+ continue;
}
- }
-
- if (!earliest_piece) {
- flush ();
- return true;
- }
-
- if (earliest_audio != TIME_MAX) {
- TimedAudioBuffers<DCPTime> tb = _audio_merger.pull (earliest_audio);
- Audio (tb.audio, tb.time);
- /* This assumes that the audio_frames_to_time conversion is exact
- so that there are no accumulated errors caused by rounding.
- */
- _audio_position += _film->audio_frames_to_time (tb.audio->frames ());
- }
-
- /* Emit the earliest thing */
-
- shared_ptr<DecodedVideo> dv = dynamic_pointer_cast<DecodedVideo> (earliest_decoded);
- shared_ptr<DecodedAudio> da = dynamic_pointer_cast<DecodedAudio> (earliest_decoded);
- shared_ptr<DecodedSubtitle> ds = dynamic_pointer_cast<DecodedSubtitle> (earliest_decoded);
-
- /* Will be set to false if we shouldn't consume the peeked DecodedThing */
- bool consume = true;
-
- /* This is the margin either side of _{video,audio}_position that we will accept
- as a starting point for a frame consecutive to the previous.
- */
- DCPTime const margin = TIME_HZ / (2 * _film->video_frame_rate ());
-
- if (dv && _video) {
-
- if (_just_did_inaccurate_seek) {
-
- /* Just emit; no subtlety */
- emit_video (earliest_piece, dv);
- step_video_position (dv);
-
- } else if (dv->dcp_time - _video_position > margin) {
-
- /* Too far ahead */
-
- list<shared_ptr<Piece> >::iterator i = _pieces.begin();
- while (i != _pieces.end() && ((*i)->content->position() >= _video_position || _video_position >= (*i)->content->end())) {
- ++i;
- }
-
- if (i == _pieces.end() || !_last_incoming_video.video || !_have_valid_pieces) {
- /* We're outside all video content */
- emit_black ();
- } else {
- /* We're inside some video; repeat the frame */
- _last_incoming_video.video->dcp_time = _video_position;
- emit_video (_last_incoming_video.weak_piece, _last_incoming_video.video);
- step_video_position (_last_incoming_video.video);
- }
- consume = false;
-
- } else if (abs (dv->dcp_time - _video_position) < margin) {
- /* We're ok */
- emit_video (earliest_piece, dv);
- step_video_position (dv);
- } else {
- /* Too far behind: skip */
+ if (decoder->video && _ignore_video) {
+ decoder->video->set_ignore ();
}
- _just_did_inaccurate_seek = false;
+ if (decoder->audio && _ignore_audio) {
+ decoder->audio->set_ignore ();
+ }
- } else if (da && _audio) {
+ if (decoder->audio && _fast) {
+ decoder->audio->set_fast ();
+ }
- if (da->dcp_time - _audio_position > margin) {
- /* Too far ahead */
- emit_silence (da->dcp_time - _audio_position);
- consume = false;
- } else if (abs (da->dcp_time - _audio_position) < margin) {
- /* We're ok */
- emit_audio (earliest_piece, da);
- } else {
- /* Too far behind: skip */
+ shared_ptr<DCPDecoder> dcp = dynamic_pointer_cast<DCPDecoder> (decoder);
+ if (dcp && _play_referenced) {
+ dcp->set_decode_referenced ();
}
-
- } else if (ds && _video) {
- _in_subtitle.piece = earliest_piece;
- _in_subtitle.subtitle = ds;
- update_subtitle ();
+
+ _pieces.push_back (shared_ptr<Piece> (new Piece (i, decoder, frc)));
}
- if (consume) {
- earliest_piece->decoder->consume ();
- }
-
- return false;
+ _have_valid_pieces = true;
}
void
-Player::emit_video (weak_ptr<Piece> weak_piece, shared_ptr<DecodedVideo> video)
+Player::playlist_content_changed (weak_ptr<Content> w, int property, bool frequent)
{
- /* 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.video = video;
-
- shared_ptr<Piece> piece = weak_piece.lock ();
- if (!piece) {
+ shared_ptr<Content> c = w.lock ();
+ if (!c) {
return;
}
- shared_ptr<VideoContent> content = dynamic_pointer_cast<VideoContent> (piece->content);
- assert (content);
-
- FrameRateChange frc (content->video_frame_rate(), _film->video_frame_rate());
+ if (
+ property == ContentProperty::POSITION ||
+ property == ContentProperty::LENGTH ||
+ property == ContentProperty::TRIM_START ||
+ property == ContentProperty::TRIM_END ||
+ property == ContentProperty::PATH ||
+ property == VideoContentProperty::FRAME_TYPE ||
+ property == DCPContentProperty::CAN_BE_PLAYED ||
+ property == SubtitleContentProperty::COLOUR ||
+ property == SubtitleContentProperty::OUTLINE ||
+ property == SubtitleContentProperty::SHADOW ||
+ property == SubtitleContentProperty::EFFECT_COLOUR ||
+ property == FFmpegContentProperty::SUBTITLE_STREAM ||
+ property == VideoContentProperty::COLOUR_CONVERSION
+ ) {
- 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);
- if (_approximate_size) {
- image_size.width &= ~3;
- image_size.height &= ~3;
- }
+ _have_valid_pieces = false;
+ Changed (frequent);
- shared_ptr<PlayerImage> pi (
- new PlayerImage (
- video->image,
- content->crop(),
- image_size,
- _video_container_size,
- _film->scaler()
- )
- );
-
- if (
- _film->with_subtitles () &&
- _out_subtitle.image &&
- video->dcp_time >= _out_subtitle.from && video->dcp_time <= _out_subtitle.to
+ } else if (
+ property == SubtitleContentProperty::LINE_SPACING ||
+ property == SubtitleContentProperty::Y_SCALE
) {
- Position<int> const container_offset (
- (_video_container_size.width - image_size.width) / 2,
- (_video_container_size.height - image_size.height) / 2
- );
+ /* These changes just need the pieces' decoders to be reset.
+ It's quite possible that other changes could be handled by
+ this branch rather than the _have_valid_pieces = false branch
+ above. This would make things a lot faster.
+ */
- pi->set_subtitle (_out_subtitle.image, _out_subtitle.position + container_offset);
+ reset_pieces ();
+ Changed (frequent);
+
+ } else if (
+ property == ContentProperty::VIDEO_FRAME_RATE ||
+ property == SubtitleContentProperty::USE ||
+ property == SubtitleContentProperty::X_OFFSET ||
+ property == SubtitleContentProperty::Y_OFFSET ||
+ property == SubtitleContentProperty::X_SCALE ||
+ property == SubtitleContentProperty::FONTS ||
+ property == VideoContentProperty::CROP ||
+ property == VideoContentProperty::SCALE ||
+ property == VideoContentProperty::FADE_IN ||
+ property == VideoContentProperty::FADE_OUT
+ ) {
+
+ Changed (frequent);
}
-
-#ifdef DCPOMATIC_DEBUG
- _last_video = piece->content;
-#endif
-
- Video (pi, video->eyes, content->colour_conversion(), video->same, video->dcp_time);
-
- _last_emit_was_black = false;
}
void
-Player::step_video_position (shared_ptr<DecodedVideo> video)
+Player::set_video_container_size (dcp::Size s)
{
- /* This is a bit of a hack; don't update _video_position if EYES_RIGHT is on its way */
- if (video->eyes != EYES_LEFT) {
- /* This assumes that the video_frames_to_time conversion is exact
- so that there are no accumulated errors caused by rounding.
- */
- _video_position += _film->video_frames_to_time (1);
- }
+ _video_container_size = s;
+
+ _black_image.reset (new Image (AV_PIX_FMT_RGB24, _video_container_size, true));
+ _black_image->make_black ();
}
void
-Player::emit_audio (weak_ptr<Piece> weak_piece, shared_ptr<DecodedAudio> audio)
+Player::playlist_changed ()
{
- shared_ptr<Piece> piece = weak_piece.lock ();
- if (!piece) {
- return;
- }
-
- 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->data));
- gain->apply_gain (content->audio_gain ());
- audio->data = gain;
- }
+ _have_valid_pieces = false;
+ Changed (false);
+}
- if (content->trimmed (audio->dcp_time - content->position ())) {
- 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.
+ */
- /* Remap channels */
- shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), audio->data->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) {
- if (i->first < audio->data->channels() && i->second < dcp_mapped->channels()) {
- dcp_mapped->accumulate_channel (audio->data.get(), i->first, i->second);
+ 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->data = dcp_mapped;
+list<PositionImage>
+Player::transform_image_subtitles (list<ImageSubtitle> subs) const
+{
+ list<PositionImage> all;
- /* Delay */
- audio->dcp_time += content->audio_delay() * TIME_HZ / 1000;
- if (audio->dcp_time < 0) {
- int const frames = - audio->dcp_time * _film->audio_frame_rate() / TIME_HZ;
- if (frames >= audio->data->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->data->channels(), audio->data->frames() - frames));
- trimmed->copy_from (audio->data.get(), audio->data->frames() - frames, frames, 0);
-
- audio->data = trimmed;
- audio->dcp_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,
+ _fast
+ ),
+ Position<int> (
+ lrint (_video_container_size.width * i->rectangle.x),
+ lrint (_video_container_size.height * i->rectangle.y)
+ )
+ )
+ );
}
- _audio_merger.push (audio->data, audio->dcp_time);
+ return all;
}
-void
-Player::flush ()
+shared_ptr<PlayerVideo>
+Player::black_player_video_frame (DCPTime time) const
{
- TimedAudioBuffers<DCPTime> 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) {
- emit_black ();
- }
-
- while (_audio_position < _video_position) {
- emit_silence (_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 (DCPTime 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 */
- for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- /* s is the offset of t from the start position of this content */
- DCPTime s = t - (*i)->content->position ();
- s = max (static_cast<DCPTime> (0), s);
- s = min ((*i)->content->length_after_trim(), s);
+ PlayerSubtitles ps = get_subtitles (time, DCPTime::from_frames (1, _film->video_frame_rate ()), false, true, accurate);
- /* Convert this to the content time */
- ContentTime ct = (s * (*i)->frc.speed_up) + (*i)->content->trim_start ();
+ list<PositionImage> sub_images;
- /* And seek the decoder */
- (*i)->decoder->seek (ct, accurate);
+ /* 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, time);
+ copy (s.begin (), s.end (), back_inserter (sub_images));
}
- _video_position = time_round_up (t, TIME_HZ / _film->video_frame_rate());
- _audio_position = time_round_up (t, TIME_HZ / _film->audio_frame_rate());
+ optional<PositionImage> subtitles;
+ if (!sub_images.empty ()) {
+ subtitles = merge (sub_images);
+ }
- _audio_merger.clear (_audio_position);
+ /* Find pieces containing video which is happening now */
- if (!accurate) {
- /* We just did an inaccurate seek, so it's likely that the next thing seen
- out of pass() will be a fair distance from _{video,audio}_position. Setting
- this flag stops pass() from trying to fix that: we assume that if it
- was an inaccurate seek then the caller does not care too much about
- inserting black/silence to keep the time tidy.
- */
- _just_did_inaccurate_seek = true;
- }
-}
+ list<shared_ptr<Piece> > ov = overlaps (
+ time,
+ time + DCPTime::from_frames (1, _film->video_frame_rate ()),
+ &has_video
+ );
-void
-Player::setup_pieces ()
-{
- list<shared_ptr<Piece> > old_pieces = _pieces;
- _pieces.clear ();
+ list<shared_ptr<PlayerVideo> > pvf;
- ContentList content = _playlist->content ();
+ 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 = last->content->video->frame_type ();
- for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
+ /* Get video from appropriate piece(s) */
+ BOOST_FOREACH (shared_ptr<Piece> piece, ov) {
- shared_ptr<Decoder> decoder;
- optional<FrameRateChange> frc;
+ shared_ptr<VideoDecoder> decoder = piece->decoder->video;
+ DCPOMATIC_ASSERT (decoder);
- shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
- if (fc) {
- decoder.reset (new FFmpegDecoder (_film, fc, _video, _audio));
- frc = FrameRateChange (fc->video_frame_rate(), _film->video_frame_rate());
- }
-
- 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;
- }
+ shared_ptr<DCPContent> dcp_content = dynamic_pointer_cast<DCPContent> (piece->content);
+ if (dcp_content && dcp_content->reference_video () && !_play_referenced) {
+ continue;
}
- if (!decoder) {
- decoder.reset (new ImageDecoder (_film, ic));
+ 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 && piece->content->video->frame_type() == VIDEO_FRAME_TYPE_3D_RIGHT) ||
+ (last_type == VIDEO_FRAME_TYPE_3D_RIGHT && piece->content->video->frame_type() == VIDEO_FRAME_TYPE_3D_LEFT);
+
+ if (use) {
+ /* We want to use this piece */
+ list<ContentVideo> content_video = decoder->get (dcp_to_content_video (piece, time), accurate);
+ if (content_video.empty ()) {
+ pvf.push_back (black_player_video_frame (time));
+ } else {
+ dcp::Size image_size = piece->content->video->scale().size (
+ piece->content->video, _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,
+ time,
+ piece->content->video->crop (),
+ piece->content->video->fade (i->frame.index()),
+ image_size,
+ _video_container_size,
+ i->frame.eyes(),
+ i->part,
+ piece->content->video->colour_conversion ()
+ )
+ )
+ );
+ }
+ }
+ } else {
+ /* Discard unused video */
+ decoder->get (dcp_to_content_video (piece, time), accurate);
}
+ }
+ }
- frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate());
+ if (subtitles) {
+ BOOST_FOREACH (shared_ptr<PlayerVideo> p, pvf) {
+ p->set_subtitle (subtitles.get ());
}
+ }
+
+ return pvf;
+}
- shared_ptr<const SndfileContent> sc = dynamic_pointer_cast<const SndfileContent> (*i);
- if (sc) {
- decoder.reset (new SndfileDecoder (_film, sc));
+/** @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)
+{
+ if (!_have_valid_pieces) {
+ setup_pieces ();
+ }
- /* Working out the frc for this content is a bit tricky: what if it overlaps
- two pieces of video content with different frame rates? For now, use
- the one with the best overlap.
- */
+ Frame const length_frames = length.frames_round (_film->audio_frame_rate ());
- DCPTime best_overlap_t = 0;
- shared_ptr<VideoContent> best_overlap;
- for (ContentList::iterator j = content.begin(); j != content.end(); ++j) {
- shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (*j);
- if (!vc) {
- continue;
- }
+ shared_ptr<AudioBuffers> audio (new AudioBuffers (_film->audio_channels(), length_frames));
+ audio->make_silent ();
- DCPTime const overlap = max (vc->position(), sc->position()) - min (vc->end(), sc->end());
- if (overlap > best_overlap_t) {
- best_overlap = vc;
- best_overlap_t = overlap;
- }
- }
+ list<shared_ptr<Piece> > ov = overlaps (time, time + length, has_audio);
+ if (ov.empty ()) {
+ return audio;
+ }
- 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 ());
- }
+ bool all_referenced = true;
+ BOOST_FOREACH (shared_ptr<Piece> i, ov) {
+ shared_ptr<DCPContent> dcp_content = dynamic_pointer_cast<DCPContent> (i->content);
+ if (i->content->audio && (!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;
}
+ }
- decoder->seek ((*i)->trim_start (), true);
-
- _pieces.push_back (shared_ptr<Piece> (new Piece (*i, decoder, frc.get ())));
+ if (all_referenced && !_play_referenced) {
+ return shared_ptr<AudioBuffers> ();
}
- _have_valid_pieces = true;
+ BOOST_FOREACH (shared_ptr<Piece> i, ov) {
- /* The Piece for the _last_incoming_video will no longer be valid */
- _last_incoming_video.video.reset ();
+ DCPOMATIC_ASSERT (i->content->audio);
+ shared_ptr<AudioDecoder> decoder = i->decoder->audio;
+ DCPOMATIC_ASSERT (decoder);
- _video_position = _audio_position = 0;
-}
+ /* The time that we should request from the content */
+ DCPTime request = time - DCPTime::from_seconds (i->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 ();
+ }
-void
-Player::content_changed (weak_ptr<Content> w, int property, bool frequent)
-{
- shared_ptr<Content> c = w.lock ();
- if (!c) {
- return;
- }
+ Frame const content_frame = dcp_to_resampled_audio (i, request);
- 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);
+ BOOST_FOREACH (AudioStreamPtr j, i->content->audio->streams ()) {
- } else if (property == SubtitleContentProperty::SUBTITLE_OFFSET || property == SubtitleContentProperty::SUBTITLE_SCALE) {
+ if (j->channels() == 0) {
+ /* Some content (e.g. DCPs) can have streams with no channels */
+ continue;
+ }
- update_subtitle ();
- Changed (frequent);
+ /* Audio from this piece's decoder stream (which might be more or less than what we asked for) */
+ ContentAudio all = decoder->get (j, content_frame, request_frames, accurate);
- } else if (property == VideoContentProperty::VIDEO_CROP || property == VideoContentProperty::VIDEO_RATIO) {
-
- Changed (frequent);
+ /* Gain */
+ if (i->content->audio->gain() != 0) {
+ shared_ptr<AudioBuffers> gain (new AudioBuffers (all.audio));
+ gain->apply_gain (i->content->audio->gain ());
+ all.audio = gain;
+ }
- } else if (property == ContentProperty::PATH) {
+ /* 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)
+ );
+ }
+ }
+ }
- Changed (frequent);
+ if (_audio_processor) {
+ dcp_mapped = _audio_processor->run (dcp_mapped, _film->audio_channels ());
+ }
+
+ all.audio = dcp_mapped;
+
+ audio->accumulate_frames (
+ all.audio.get(),
+ content_frame - all.frame,
+ offset.frames_round (_film->audio_frame_rate()),
+ min (Frame (all.audio->frames()), request_frames)
+ );
+ }
}
+
+ return audio;
}
-void
-Player::playlist_changed ()
+Frame
+Player::dcp_to_content_video (shared_ptr<const Piece> piece, DCPTime t) const
{
- _have_valid_pieces = false;
- Changed (false);
+ 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));
+
+ /* 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).
+
+ 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 ();
}
-void
-Player::set_video_container_size (libdcp::Size s)
+DCPTime
+Player::content_video_to_dcp (shared_ptr<const Piece> piece, Frame f) const
{
- _video_container_size = s;
-
- shared_ptr<Image> im (new Image (PIX_FMT_RGB24, _video_container_size, true));
- im->make_black ();
-
- _black_frame.reset (
- new PlayerImage (
- im,
- Crop(),
- _video_container_size,
- _video_container_size,
- Scaler::from_id ("bicubic")
- )
- );
+ /* 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 ());
}
-void
-Player::emit_black ()
+Frame
+Player::dcp_to_resampled_audio (shared_ptr<const Piece> piece, DCPTime t) const
{
-#ifdef DCPOMATIC_DEBUG
- _last_video.reset ();
-#endif
+ 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 ());
+}
- 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;
+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::emit_silence (DCPTime most)
+DCPTime
+Player::content_subtitle_to_dcp (shared_ptr<const Piece> piece, ContentTime t) const
{
- if (most == 0) {
- return;
- }
-
- DCPTime t = min (most, TIME_HZ / 2);
- shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), t * _film->audio_frame_rate() / TIME_HZ));
- silence->make_silent ();
- Audio (silence, _audio_position);
-
- _audio_position += t;
+ return max (DCPTime (), DCPTime (t - piece->content->trim_start(), piece->frc) + piece->content->position());
}
-void
-Player::film_changed (Film::Property p)
+/** @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, bool accurate)
{
- /* 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.
- */
+ list<shared_ptr<Piece> > subs = overlaps (time, time + length, has_subtitle);
- if (p == Film::SCALER || p == Film::WITH_SUBTITLES || p == Film::CONTAINER) {
- Changed (false);
+ PlayerSubtitles ps (time);
+
+ for (list<shared_ptr<Piece> >::const_iterator j = subs.begin(); j != subs.end(); ++j) {
+ if (!(*j)->content->subtitle->use () || (!_always_burn_subtitles && (burnt != (*j)->content->subtitle->burn ()))) {
+ continue;
+ }
+
+ shared_ptr<DCPContent> dcp_content = dynamic_pointer_cast<DCPContent> ((*j)->content);
+ if (dcp_content && dcp_content->reference_subtitle () && !_play_referenced) {
+ continue;
+ }
+
+ shared_ptr<SubtitleDecoder> subtitle_decoder = (*j)->decoder->subtitle;
+ 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 (ContentTimePeriod (from, to), starting, accurate);
+ for (list<ContentImageSubtitle>::iterator i = image.begin(); i != image.end(); ++i) {
+
+ /* Apply content's subtitle offsets */
+ i->sub.rectangle.x += (*j)->content->subtitle->x_offset ();
+ i->sub.rectangle.y += (*j)->content->subtitle->y_offset ();
+
+ /* Apply content's subtitle scale */
+ i->sub.rectangle.width *= (*j)->content->subtitle->x_scale ();
+ i->sub.rectangle.height *= (*j)->content->subtitle->y_scale ();
+
+ /* Apply a corrective translation to keep the subtitle centred after that scale */
+ i->sub.rectangle.x -= i->sub.rectangle.width * ((*j)->content->subtitle->x_scale() - 1);
+ i->sub.rectangle.y -= i->sub.rectangle.height * ((*j)->content->subtitle->y_scale() - 1);
+
+ ps.image.push_back (i->sub);
+ }
+
+ list<ContentTextSubtitle> text = subtitle_decoder->get_text (ContentTimePeriod (from, to), starting, accurate);
+ BOOST_FOREACH (ContentTextSubtitle& ts, text) {
+ BOOST_FOREACH (dcp::SubtitleString s, ts.subs) {
+ s.set_h_position (s.h_position() + (*j)->content->subtitle->x_offset ());
+ s.set_v_position (s.v_position() + (*j)->content->subtitle->y_offset ());
+ float const xs = (*j)->content->subtitle->x_scale();
+ float const ys = (*j)->content->subtitle->y_scale();
+ float size = s.size();
+
+ /* Adjust size to express the common part of the scaling;
+ e.g. if xs = ys = 0.5 we scale size by 2.
+ */
+ if (xs > 1e-5 && ys > 1e-5) {
+ size *= 1 / min (1 / xs, 1 / ys);
+ }
+ s.set_size (size);
+
+ /* Then express aspect ratio changes */
+ 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(), 1000));
+ s.set_out (dcp::Time(content_subtitle_to_dcp (*j, ts.period().to).seconds(), 1000));
+ ps.text.push_back (s);
+ ps.add_fonts ((*j)->content->subtitle->fonts ());
+ }
+ }
}
+
+ return ps;
}
-void
-Player::update_subtitle ()
+list<shared_ptr<Font> >
+Player::get_subtitle_fonts ()
{
- shared_ptr<Piece> piece = _in_subtitle.piece.lock ();
- if (!piece) {
- return;
+ if (!_have_valid_pieces) {
+ setup_pieces ();
}
- if (!_in_subtitle.subtitle->image) {
- _out_subtitle.image.reset ();
- return;
+ list<shared_ptr<Font> > fonts;
+ BOOST_FOREACH (shared_ptr<Piece>& p, _pieces) {
+ if (p->content->subtitle) {
+ /* XXX: things may go wrong if there are duplicate font IDs
+ with different font files.
+ */
+ list<shared_ptr<Font> > f = p->content->subtitle->fonts ();
+ copy (f.begin(), f.end(), back_inserter (fonts));
+ }
}
- shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (piece->content);
- assert (sc);
-
- dcpomatic::Rect<double> in_rect = _in_subtitle.subtitle->rect;
- libdcp::Size scaled_size;
-
- in_rect.y += sc->subtitle_offset ();
-
- /* We will scale the subtitle up to fit _video_container_size, and also by the additional subtitle_scale */
- scaled_size.width = in_rect.width * _video_container_size.width * sc->subtitle_scale ();
- scaled_size.height = in_rect.height * _video_container_size.height * sc->subtitle_scale ();
-
- /* 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_scale) / 2) and
- * (height_before_subtitle_scale * (1 - subtitle_scale) / 2).
- *
- * Combining these two translations gives these expressions.
- */
-
- _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.subtitle->image->scale (
- scaled_size,
- Scaler::from_id ("bicubic"),
- PIX_FMT_RGBA,
- true
- );
-
- _out_subtitle.from = _in_subtitle.subtitle->dcp_time;
- _out_subtitle.to = _in_subtitle.subtitle->dcp_time_to;
+ return fonts;
}
-/** 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 ()
+/** Set this player never to produce any video data */
+void
+Player::set_ignore_video ()
{
- if (!_last_incoming_video.video || !_have_valid_pieces) {
- return false;
- }
-
- emit_video (
- _last_incoming_video.weak_piece,
- _last_incoming_video.video
- );
-
- return true;
+ _ignore_video = true;
}
+/** Set this player never to produce any audio data */
void
-Player::set_approximate_size ()
+Player::set_ignore_audio ()
{
- _approximate_size = true;
+ _ignore_audio = true;
}
-
-
-PlayerImage::PlayerImage (
- shared_ptr<const Image> in,
- Crop crop,
- libdcp::Size inter_size,
- libdcp::Size out_size,
- Scaler const * scaler
- )
- : _in (in)
- , _crop (crop)
- , _inter_size (inter_size)
- , _out_size (out_size)
- , _scaler (scaler)
+
+/** 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::set_always_burn_subtitles (bool burn)
{
+ _always_burn_subtitles = burn;
+}
+void
+Player::set_fast ()
+{
+ _fast = true;
+ _have_valid_pieces = false;
}
void
-PlayerImage::set_subtitle (shared_ptr<const Image> image, Position<int> pos)
+Player::set_play_referenced ()
{
- _subtitle_image = image;
- _subtitle_position = pos;
+ _play_referenced = true;
+ _have_valid_pieces = false;
}
-shared_ptr<Image>
-PlayerImage::image (AVPixelFormat format, bool aligned)
+list<ReferencedReelAsset>
+Player::get_reel_assets ()
{
- shared_ptr<Image> out = _in->crop_scale_window (_crop, _inter_size, _out_size, _scaler, format, aligned);
-
- Position<int> const container_offset ((_out_size.width - _inter_size.width) / 2, (_out_size.height - _inter_size.width) / 2);
+ list<ReferencedReelAsset> a;
- if (_subtitle_image) {
- out->alpha_blend (_subtitle_image, _subtitle_position);
+ BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
+ shared_ptr<DCPContent> j = dynamic_pointer_cast<DCPContent> (i);
+ if (!j) {
+ continue;
+ }
+
+ scoped_ptr<DCPDecoder> decoder;
+ try {
+ decoder.reset (new DCPDecoder (j, _film->log()));
+ } catch (...) {
+ return a;
+ }
+
+ int64_t offset = 0;
+ BOOST_FOREACH (shared_ptr<dcp::Reel> k, decoder->reels()) {
+ DCPTime const from = i->position() + DCPTime::from_frames (offset, _film->video_frame_rate());
+ if (j->reference_video ()) {
+ a.push_back (
+ ReferencedReelAsset (
+ k->main_picture (),
+ DCPTimePeriod (from, from + DCPTime::from_frames (k->main_picture()->duration(), _film->video_frame_rate()))
+ )
+ );
+ }
+
+ if (j->reference_audio ()) {
+ a.push_back (
+ ReferencedReelAsset (
+ k->main_sound (),
+ DCPTimePeriod (from, from + DCPTime::from_frames (k->main_sound()->duration(), _film->video_frame_rate()))
+ )
+ );
+ }
+
+ if (j->reference_subtitle ()) {
+ DCPOMATIC_ASSERT (k->main_subtitle ());
+ a.push_back (
+ ReferencedReelAsset (
+ k->main_subtitle (),
+ DCPTimePeriod (from, from + DCPTime::from_frames (k->main_subtitle()->duration(), _film->video_frame_rate()))
+ )
+ );
+ }
+
+ /* Assume that main picture duration is the length of the reel */
+ offset += k->main_picture()->duration ();
+ }
+ }
+
+ return a;
+}
+
+list<shared_ptr<Piece> >
+Player::overlaps (DCPTime from, DCPTime to, boost::function<bool (Content *)> valid)
+{
+ if (!_have_valid_pieces) {
+ setup_pieces ();
+ }
+
+ list<shared_ptr<Piece> > overlaps;
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ if (valid (i->content.get ()) && i->content->position() < to && i->content->end() > from) {
+ overlaps.push_back (i);
+ }
}
- return out;
+ return overlaps;
}
+void
+Player::reset_pieces ()
+{
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ i->decoder->reset ();
+ }
+}
projects / dcpomatic.git / blobdiff