/*
- Copyright (C) 2013 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 "subrip_decoder.h"
+#include "subrip_content.h"
+#include "dcp_content.h"
#include "playlist.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 "dcp_content.h"
+#include "dcp_decoder.h"
+#include "dcp_subtitle_content.h"
+#include "dcp_subtitle_decoder.h"
+#include "audio_processor.h"
+#include <boost/foreach.hpp>
+#include <stdint.h>
+#include <algorithm>
+
+#include "i18n.h"
+
+#define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), Log::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 boost::shared_ptr;
using boost::weak_ptr;
using boost::dynamic_pointer_cast;
using boost::optional;
-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)
+ , _ignore_video (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));
- set_video_container_size (fit_ratio_within (_film->container()->ratio (), _film->full_frame ()));
-}
+ 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 ();
- }
-
- /* Interrogate all our pieces to find the one with the earliest decoded data */
+ list<shared_ptr<Piece> > old_pieces = _pieces;
+ _pieces.clear ();
- shared_ptr<Piece> earliest_piece;
- shared_ptr<Decoded> earliest_decoded;
- DCPTime earliest_time = TIME_MAX;
- DCPTime earliest_audio = TIME_MAX;
+ ContentList content = _playlist->content ();
- for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
+ for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
- shared_ptr<Decoded> dec = (*i)->decoder->peek ();
+ if (!(*i)->paths_valid ()) {
+ continue;
+ }
+
+ shared_ptr<Decoder> decoder;
+ optional<FrameRateChange> frc;
- if (dec) {
- dec->set_dcp_times ((*i)->frc.speed_up, (*i)->content->position());
+ /* Work out a FrameRateChange for the best overlap video for this content, in case we need it below */
+ DCPTime best_overlap_t;
+ 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;
+ }
+
+ DCPTime const overlap = max (vc->position(), (*i)->position()) - min (vc->end(), (*i)->end());
+ if (overlap > best_overlap_t) {
+ best_overlap = vc;
+ best_overlap_t = overlap;
+ }
}
- if (dec && dec->dcp_time < earliest_time) {
- earliest_piece = *i;
- earliest_decoded = dec;
- earliest_time = dec->dcp_time;
+ optional<FrameRateChange> best_overlap_frc;
+ if (best_overlap) {
+ 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 */
+ best_overlap_frc = FrameRateChange (_film->video_frame_rate(), _film->video_frame_rate ());
}
- if (dynamic_pointer_cast<DecodedAudio> (dec) && dec->dcp_time < earliest_audio) {
- earliest_audio = dec->dcp_time;
+ /* FFmpeg */
+ shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
+ if (fc) {
+ decoder.reset (new FFmpegDecoder (fc, _film->log()));
+ frc = FrameRateChange (fc->video_frame_rate(), _film->video_frame_rate());
}
- }
-
- if (!earliest_piece) {
- flush ();
- return true;
- }
- if (earliest_audio != TIME_MAX) {
- TimedAudioBuffers<DCPTime> tb = _audio_merger.pull (earliest_audio);
- Audio (tb.audio, tb.time);
- _audio_position += _film->audio_frames_to_time (tb.audio->frames ());
- }
+ shared_ptr<const DCPContent> dc = dynamic_pointer_cast<const DCPContent> (*i);
+ if (dc) {
+ decoder.reset (new DCPDecoder (dc));
+ frc = FrameRateChange (dc->video_frame_rate(), _film->video_frame_rate());
+ }
- /* Emit the earliest thing */
+ /* 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;
+ }
+ }
- 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);
+ if (!decoder) {
+ decoder.reset (new ImageDecoder (ic));
+ }
- if (dv && _video) {
- DCPTime const half_frame = TIME_HZ / (2 * _film->video_frame_rate ());
- if (!_just_did_inaccurate_seek && earliest_time > (_video_position + half_frame)) {
+ frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate());
+ }
- /* See if we're inside some video content */
- list<shared_ptr<Piece> >::iterator i = _pieces.begin();
- while (i != _pieces.end() && ((*i)->content->position() >= _video_position || _video_position >= (*i)->content->end())) {
- ++i;
- }
+ /* SndfileContent */
+ shared_ptr<const SndfileContent> sc = dynamic_pointer_cast<const SndfileContent> (*i);
+ if (sc) {
+ decoder.reset (new SndfileDecoder (sc));
+ frc = best_overlap_frc;
+ }
- if (i == _pieces.end() || !_last_incoming_video.video || !_have_valid_pieces) {
- /* We're outside all video content */
- emit_black ();
- } else {
- _last_incoming_video.video->dcp_time = _video_position;
- emit_video (_last_incoming_video.weak_piece, _last_incoming_video.video);
- }
+ /* SubRipContent */
+ shared_ptr<const SubRipContent> rc = dynamic_pointer_cast<const SubRipContent> (*i);
+ if (rc) {
+ decoder.reset (new SubRipDecoder (rc));
+ frc = best_overlap_frc;
+ }
- } else {
- if (
- dv->dcp_time >= _video_position &&
- !earliest_piece->content->trimmed (dv->dcp_time - earliest_piece->content->position ())
- ) {
-
- emit_video (earliest_piece, dv);
- }
-
- earliest_piece->decoder->get ();
+ /* DCPSubtitleContent */
+ shared_ptr<const DCPSubtitleContent> dsc = dynamic_pointer_cast<const DCPSubtitleContent> (*i);
+ if (dsc) {
+ decoder.reset (new DCPSubtitleDecoder (dsc));
+ frc = best_overlap_frc;
}
- } else if (da && _audio) {
- if (!_just_did_inaccurate_seek && earliest_time > _audio_position) {
- emit_silence (earliest_time - _audio_position);
- } else {
- emit_audio (earliest_piece, da);
- earliest_piece->decoder->get ();
+ shared_ptr<VideoDecoder> vd = dynamic_pointer_cast<VideoDecoder> (decoder);
+ if (vd && _ignore_video) {
+ vd->set_ignore_video ();
}
- } else if (ds && _video) {
- _in_subtitle.piece = earliest_piece;
- _in_subtitle.subtitle = ds;
- update_subtitle ();
- earliest_piece->decoder->get ();
- }
- _just_did_inaccurate_seek = false;
+ _pieces.push_back (shared_ptr<Piece> (new Piece (*i, decoder, frc.get ())));
+ }
- return false;
+ _have_valid_pieces = true;
}
void
-Player::emit_video (weak_ptr<Piece> weak_piece, shared_ptr<DecodedVideo> video)
+Player::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());
-
- 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;
- }
-
- shared_ptr<PlayerImage> pi (
- new PlayerImage (
- video->image,
- content->crop(),
- image_size,
- _video_container_size,
- _film->scaler()
- )
- );
-
if (
- _film->with_subtitles () &&
- _out_subtitle.subtitle->image &&
- video->dcp_time >= _out_subtitle.subtitle->dcp_time && video->dcp_time <= _out_subtitle.subtitle->dcp_time_to
+ 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
) {
+
+ _have_valid_pieces = false;
+ Changed (frequent);
- Position<int> const container_offset (
- (_video_container_size.width - image_size.width) / 2,
- (_video_container_size.height - image_size.width) / 2
- );
-
- pi->set_subtitle (_out_subtitle.subtitle->image, _out_subtitle.position + container_offset);
+ } 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 == VideoContentProperty::VIDEO_CROP ||
+ property == VideoContentProperty::VIDEO_SCALE ||
+ property == VideoContentProperty::VIDEO_FRAME_RATE ||
+ property == VideoContentProperty::VIDEO_FADE_IN ||
+ property == VideoContentProperty::VIDEO_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;
- _video_position = rint (video->dcp_time + TIME_HZ / _film->video_frame_rate());
}
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;
- }
+ _have_valid_pieces = false;
+ Changed (false);
+}
- shared_ptr<AudioContent> content = dynamic_pointer_cast<AudioContent> (piece->content);
- assert (content);
+void
+Player::set_video_container_size (dcp::Size s)
+{
+ _video_container_size = s;
- /* Gain */
- if (content->audio_gain() != 0) {
- shared_ptr<AudioBuffers> gain (new AudioBuffers (audio->data));
- gain->apply_gain (content->audio_gain ());
- audio->data = gain;
- }
+ _black_image.reset (new Image (PIX_FMT_RGB24, _video_container_size, true));
+ _black_image->make_black ();
+}
- 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 || p == Film::VIDEO_FRAME_RATE) {
+ 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;
-
- /* 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;
+list<PositionImage>
+Player::transform_image_subtitles (list<ImageSubtitle> subs) const
+{
+ list<PositionImage> all;
+
+ 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
+ ),
+ Position<int> (
+ rint (_video_container_size.width * i->rectangle.x),
+ rint (_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<float> (),
+ _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
- */
-void
-Player::seek (DCPTime t, bool accurate)
+/** @return All PlayerVideos at the given time (there may be two frames for 3D) */
+list<shared_ptr<PlayerVideo> >
+Player::get_video (DCPTime time, bool accurate)
{
if (!_have_valid_pieces) {
setup_pieces ();
}
- if (_pieces.empty ()) {
- return;
- }
+ list<shared_ptr<Piece> > ov = overlaps<VideoContent> (
+ time,
+ time + DCPTime::from_frames (1, _film->video_frame_rate ())
+ );
- 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);
+ list<shared_ptr<PlayerVideo> > pvf;
- /* Convert this to the content time */
- ContentTime ct = (s * (*i)->frc.speed_up) + (*i)->content->trim_start ();
+ if (ov.empty ()) {
+ /* No video content at this time */
+ pvf.push_back (black_player_video_frame (time));
+ } else {
+ /* Create a PlayerVideo from the content's video at this time */
- /* And seek the decoder */
- (*i)->decoder->seek (ct, accurate);
+ shared_ptr<Piece> piece = ov.back ();
+ shared_ptr<VideoDecoder> decoder = dynamic_pointer_cast<VideoDecoder> (piece->decoder);
+ DCPOMATIC_ASSERT (decoder);
+ shared_ptr<VideoContent> content = dynamic_pointer_cast<VideoContent> (piece->content);
+ DCPOMATIC_ASSERT (content);
+
+ 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));
+ return pvf;
+ }
+
+ dcp::Size image_size = content->scale().size (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),
+ content->crop (),
+ content->fade (i->frame),
+ image_size,
+ _video_container_size,
+ i->eyes,
+ i->part,
+ content->colour_conversion ()
+ )
+ )
+ );
+ }
}
- _video_position = time_round_up (t, TIME_HZ / _film->video_frame_rate());
- _audio_position = time_round_up (t, TIME_HZ / _film->audio_frame_rate());
+ /* Add subtitles (for possible burn-in) to whatever PlayerVideos we got */
- _audio_merger.clear (_audio_position);
+ PlayerSubtitles ps = get_subtitles (time, DCPTime::from_frames (1, _film->video_frame_rate ()), false);
- 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<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 ()) {
+ sub_images.push_back (render_subtitles (ps.text, _video_container_size));
}
+
+ if (!sub_images.empty ()) {
+ for (list<shared_ptr<PlayerVideo> >::const_iterator i = pvf.begin(); i != pvf.end(); ++i) {
+ (*i)->set_subtitle (merge (sub_images));
+ }
+ }
+
+ return pvf;
}
-void
-Player::setup_pieces ()
+shared_ptr<AudioBuffers>
+Player::get_audio (DCPTime time, DCPTime length, bool accurate)
{
- list<shared_ptr<Piece> > old_pieces = _pieces;
- _pieces.clear ();
+ if (!_have_valid_pieces) {
+ setup_pieces ();
+ }
- ContentList content = _playlist->content ();
+ Frame const length_frames = length.frames (_film->audio_frame_rate ());
- for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
+ shared_ptr<AudioBuffers> audio (new AudioBuffers (_film->audio_channels(), length_frames));
+ audio->make_silent ();
+
+ list<shared_ptr<Piece> > ov = overlaps<AudioContent> (time, time + length);
+ if (ov.empty ()) {
+ return audio;
+ }
- shared_ptr<Decoder> decoder;
- optional<FrameRateChange> frc;
+ for (list<shared_ptr<Piece> >::iterator i = ov.begin(); i != ov.end(); ++i) {
- 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<AudioContent> content = dynamic_pointer_cast<AudioContent> ((*i)->content);
+ DCPOMATIC_ASSERT (content);
+ shared_ptr<AudioDecoder> decoder = dynamic_pointer_cast<AudioDecoder> ((*i)->decoder);
+ DCPOMATIC_ASSERT (decoder);
- if (!decoder) {
- decoder.reset (new ImageDecoder (_film, ic));
+ /* 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 (_film->audio_frame_rate ());
+ if (request_frames < 0) {
+ request_frames = 0;
}
-
- frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate());
+ request = DCPTime ();
}
- shared_ptr<const SndfileContent> sc = dynamic_pointer_cast<const SndfileContent> (*i);
- if (sc) {
- decoder.reset (new SndfileDecoder (_film, sc));
+ Frame const content_frame = dcp_to_content_audio (*i, request);
- /* 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.
- */
+ BOOST_FOREACH (AudioStreamPtr j, content->audio_streams ()) {
+
+ /* 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);
- 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;
- }
+ /* Gain */
+ if (content->audio_gain() != 0) {
+ shared_ptr<AudioBuffers> gain (new AudioBuffers (all.audio));
+ gain->apply_gain (content->audio_gain ());
+ all.audio = gain;
+ }
- 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;
+ /* 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.content_channels(); ++i) {
+ for (int j = 0; j < _film->audio_channels(); ++j) {
+ if (map.get (i, static_cast<dcp::Channel> (j)) > 0) {
+ dcp_mapped->accumulate_channel (
+ all.audio.get(),
+ i,
+ j,
+ map.get (i, static_cast<dcp::Channel> (j))
+ );
+ }
}
}
- 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_processor) {
+ dcp_mapped = _audio_processor->run (dcp_mapped);
}
- }
-
- decoder->seek ((*i)->trim_start (), true);
- _pieces.push_back (shared_ptr<Piece> (new Piece (*i, decoder, frc.get ())));
+ all.audio = dcp_mapped;
+
+ audio->accumulate_frames (
+ all.audio.get(),
+ content_frame - all.frame,
+ offset.frames (_film->audio_frame_rate()),
+ min (Frame (all.audio->frames()), request_frames)
+ );
+ }
}
- _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;
- }
-
- 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);
-
- } else if (property == SubtitleContentProperty::SUBTITLE_OFFSET || property == SubtitleContentProperty::SUBTITLE_SCALE) {
-
- update_subtitle ();
- Changed (frequent);
-
- } else if (property == VideoContentProperty::VIDEO_CROP || property == VideoContentProperty::VIDEO_RATIO) {
-
- Changed (frequent);
-
- } else if (property == ContentProperty::PATH) {
+ /* s is the offset of t from the start position of this content */
+ DCPTime s = t - piece->content->position ();
+ s = DCPTime (max (DCPTime::Type (0), s.get ()));
+ s = DCPTime (min (piece->content->length_after_trim().get(), s.get()));
- Changed (frequent);
- }
+ /* Convert this to the content frame */
+ return DCPTime (s + piece->content->trim_start()).frames (_film->video_frame_rate()) / piece->frc.factor ();
}
-void
-Player::playlist_changed ()
+DCPTime
+Player::content_video_to_dcp (shared_ptr<const Piece> piece, Frame f) const
{
- _have_valid_pieces = false;
- Changed (false);
+ DCPTime t = DCPTime::from_frames (f * piece->frc.factor (), _film->video_frame_rate()) - piece->content->trim_start () + piece->content->position ();
+ if (t < DCPTime ()) {
+ t = DCPTime ();
+ }
+
+ return t;
}
-void
-Player::set_video_container_size (libdcp::Size s)
+Frame
+Player::dcp_to_content_audio (shared_ptr<const Piece> piece, DCPTime t) const
{
- _video_container_size = s;
+ /* s is the offset of t from the start position of this content */
+ DCPTime s = t - piece->content->position ();
+ s = DCPTime (max (DCPTime::Type (0), s.get ()));
+ s = DCPTime (min (piece->content->length_after_trim().get(), s.get()));
- 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")
- )
- );
+ /* Convert this to the content frame */
+ return DCPTime (s + piece->content->trim_start()).frames (_film->audio_frame_rate());
}
-void
-Player::emit_black ()
+ContentTime
+Player::dcp_to_content_subtitle (shared_ptr<const Piece> piece, DCPTime t) const
{
-#ifdef DCPOMATIC_DEBUG
- _last_video.reset ();
-#endif
+ /* s is the offset of t from the start position of this content */
+ DCPTime s = t - piece->content->position ();
+ s = DCPTime (max (DCPTime::Type (0), s.get ()));
+ s = DCPTime (min (piece->content->length_after_trim().get(), s.get()));
- 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;
+ return ContentTime (s + piece->content->trim_start(), piece->frc);
}
void
-Player::emit_silence (DCPTime most)
+PlayerStatistics::dump (shared_ptr<Log> log) 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;
+ log->log (String::compose ("Video: %1 good %2 skipped %3 black %4 repeat", video.good, video.skip, video.black, video.repeat), Log::TYPE_GENERAL);
+ log->log (String::compose ("Audio: %1 good %2 skipped %3 silence", audio.good, audio.skip, audio.silence.seconds()), Log::TYPE_GENERAL);
}
-void
-Player::film_changed (Film::Property p)
+PlayerStatistics const &
+Player::statistics () const
{
- /* 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.
- */
-
- if (p == Film::SCALER || p == Film::WITH_SUBTITLES || p == Film::CONTAINER) {
- Changed (false);
- }
+ return _statistics;
}
-void
-Player::update_subtitle ()
+PlayerSubtitles
+Player::get_subtitles (DCPTime time, DCPTime length, bool starting)
{
- shared_ptr<Piece> piece = _in_subtitle.piece.lock ();
- if (!piece) {
- return;
- }
+ list<shared_ptr<Piece> > subs = overlaps<SubtitleContent> (time, time + length);
- if (!_in_subtitle.subtitle->image) {
- _out_subtitle.subtitle->image.reset ();
- return;
- }
+ PlayerSubtitles ps (time, length);
- 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.subtitle->image = _in_subtitle.subtitle->image->scale (
- scaled_size,
- Scaler::from_id ("bicubic"),
- _in_subtitle.subtitle->image->pixel_format (),
- true
- );
-
- _out_subtitle.subtitle->dcp_time = _in_subtitle.subtitle->dcp_time;
- _out_subtitle.subtitle->dcp_time = _in_subtitle.subtitle->dcp_time;
-}
+ 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 ()) {
+ continue;
+ }
-/** 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 ()
-{
- if (!_last_incoming_video.video || !_have_valid_pieces) {
- return false;
- }
+ 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);
+ }
- emit_video (
- _last_incoming_video.weak_piece,
- _last_incoming_video.video
- );
+ 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_v_position (s.v_position() + subtitle_content->subtitle_y_offset ());
+ s.set_size (s.size() * max (subtitle_content->subtitle_x_scale(), subtitle_content->subtitle_y_scale()));
+ ps.text.push_back (s);
+ }
+ }
+ }
- return true;
+ return ps;
}
-void
-Player::set_approximate_size ()
-{
- _approximate_size = 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)
+list<shared_ptr<Font> >
+Player::get_subtitle_fonts ()
{
+ if (!_have_valid_pieces) {
+ setup_pieces ();
+ }
-}
+ 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));
+ }
+ }
-void
-PlayerImage::set_subtitle (shared_ptr<const Image> image, Position<int> pos)
-{
- _subtitle_image = image;
- _subtitle_position = pos;
+ return fonts;
}
-shared_ptr<Image>
-PlayerImage::image (AVPixelFormat format, bool aligned)
+/** Set this player never to produce any video data */
+void
+Player::set_ignore_video ()
{
- 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);
-
- if (_subtitle_image) {
- out->alpha_blend (_subtitle_image, _subtitle_position);
- }
-
- return out;
+ _ignore_video = true;
}
-