/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2014 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 <algorithm>
#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 "playlist.h"
#include "job.h"
#include "image.h"
+#include "image_proxy.h"
#include "ratio.h"
-#include "resampler.h"
#include "log.h"
#include "scaler.h"
#include "render_subtitles.h"
+#include "config.h"
+#include "content_video.h"
+#include "player_video_frame.h"
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;
-
-class Piece
-{
-public:
- Piece (shared_ptr<Content> c)
- : content (c)
- , video_position (c->position ())
- , audio_position (c->position ())
- , repeat_to_do (0)
- , repeat_done (0)
- {}
-
- Piece (shared_ptr<Content> c, shared_ptr<Decoder> d)
- : content (c)
- , decoder (d)
- , video_position (c->position ())
- , audio_position (c->position ())
- {}
-
- /** Set this piece to repeat a video frame a given number of times */
- void set_repeat (IncomingVideo video, int num)
- {
- repeat_video = video;
- repeat_to_do = num;
- repeat_done = 0;
- }
-
- void reset_repeat ()
- {
- repeat_video.image.reset ();
- repeat_to_do = 0;
- repeat_done = 0;
- }
-
- bool repeating () const
- {
- return repeat_done != repeat_to_do;
- }
-
- void repeat (Player* player)
- {
- player->process_video (
- repeat_video.weak_piece,
- repeat_video.image,
- repeat_video.eyes,
- repeat_done > 0,
- repeat_video.frame,
- (repeat_done + 1) * (TIME_HZ / player->_film->video_frame_rate ())
- );
-
- ++repeat_done;
- }
-
- shared_ptr<Content> content;
- shared_ptr<Decoder> decoder;
- /** Time of the last video we emitted relative to the start of the DCP */
- Time video_position;
- /** Time of the last audio we emitted relative to the start of the DCP */
- Time audio_position;
-
- IncomingVideo repeat_video;
- int repeat_to_do;
- int repeat_done;
-};
+using boost::optional;
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)
+ , _approximate_size (false)
+ , _burn_subtitles (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;
-}
-
-void
-Player::disable_audio ()
+Player::setup_pieces ()
{
- _audio = false;
-}
+ list<shared_ptr<Piece> > old_pieces = _pieces;
+ _pieces.clear ();
-bool
-Player::pass ()
-{
- if (!_have_valid_pieces) {
- setup_pieces ();
- }
+ ContentList content = _playlist->content ();
- Time earliest_t = TIME_MAX;
- shared_ptr<Piece> earliest;
- enum {
- VIDEO,
- AUDIO
- } type = VIDEO;
+ for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
- for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- if ((*i)->decoder->done ()) {
+ 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);
-
- if (_video && vd) {
- if ((*i)->video_position < earliest_t) {
- earliest_t = (*i)->video_position;
- earliest = *i;
- type = VIDEO;
- }
- }
-
- if (_audio && ad && ad->has_audio ()) {
- if ((*i)->audio_position < earliest_t) {
- earliest_t = (*i)->audio_position;
- earliest = *i;
- type = AUDIO;
- }
- }
- }
-
- if (!earliest) {
- flush ();
- return true;
- }
-
- switch (type) {
- case VIDEO:
- if (earliest_t > _video_position) {
- emit_black ();
- } else {
- if (earliest->repeating ()) {
- earliest->repeat (this);
- } else {
- earliest->decoder->pass ();
- }
- }
- 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 ());
- }
- }
- }
- }
- 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 ()) {
+
+ shared_ptr<Decoder> decoder;
+ optional<FrameRateChange> frc;
+
+ /* 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;
}
-
- 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 (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 Image> image, Eyes eyes, 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.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);
-
- FrameRateConversion frc (content->video_frame_rate(), _film->video_frame_rate());
- if (frc.skip && (frame % 2) == 1) {
- return;
- }
-
- Time const relative_time = (frame * frc.factor() * TIME_HZ / _film->video_frame_rate());
- if (content->trimmed (relative_time)) {
- return;
- }
-
- Time const time = content->position() + relative_time + extra - content->trim_start ();
- float const ratio = content->ratio() ? content->ratio()->ratio() : content->video_size_after_crop().ratio();
- libdcp::Size const image_size = fit_ratio_within (ratio, _video_container_size);
-
- shared_ptr<PlayerImage> pi (
- new PlayerImage (
- image,
- content->crop(),
- image_size,
- _video_container_size,
- _film->scaler()
- )
- );
-
- if (_film->with_subtitles () && _out_subtitle.image && time >= _out_subtitle.from && time <= _out_subtitle.to) {
-
- 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.image, _out_subtitle.position + container_offset);
- }
-
-
-#ifdef DCPOMATIC_DEBUG
- _last_video = piece->content;
-#endif
-
- Video (pi, eyes, content->colour_conversion(), same, time);
-
- _last_emit_was_black = false;
- _video_position = piece->video_position = (time + TIME_HZ / _film->video_frame_rate());
-
- if (frc.repeat > 1 && !piece->repeating ()) {
- piece->set_repeat (_last_incoming_video, frc.repeat - 1);
- }
-}
-
-void
-Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers> audio, AudioContent::Frame frame)
-{
- 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));
- 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);
-
- if (content->trimmed (relative_time)) {
- return;
- }
-
- 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))
- );
+
+ 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;
}
}
- }
- audio = dcp_mapped;
-
- /* 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;
- }
-
- 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;
- }
-
- _audio_merger.push (audio, time);
- piece->audio_position += _film->audio_frames_to_time (audio->frames ());
-}
-
-void
-Player::flush ()
-{
- 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));
- }
-
-}
-
-/** 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 (Time t, bool accurate)
-{
- if (!_have_valid_pieces) {
- setup_pieces ();
- }
-
- if (_pieces.empty ()) {
- return;
- }
-
- 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<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 ());
}
- /* 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);
-
- /* Hence set the piece positions to the `global' time */
- (*i)->video_position = (*i)->audio_position = vc->position() + s;
-
- /* And seek the decoder */
- dynamic_pointer_cast<VideoDecoder>((*i)->decoder)->seek (
- vc->time_to_content_video_frames (s + vc->trim_start ()), accurate
- );
-
- (*i)->reset_repeat ();
- }
-
- _video_position = _audio_position = t;
-
- /* XXX: don't seek audio because we don't need to... */
-}
-
-void
-Player::setup_pieces ()
-{
- list<shared_ptr<Piece> > old_pieces = _pieces;
-
- _pieces.clear ();
-
- ContentList content = _playlist->content ();
- sort (content.begin(), content.end(), ContentSorter ());
-
- for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
-
- shared_ptr<Piece> piece (new Piece (*i));
-
- /* XXX: into content? */
-
+ /* FFmpeg */
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, 0));
- fd->Audio.connect (bind (&Player::process_audio, this, weak_ptr<Piece> (piece), _1, _2));
- fd->ImageSubtitle.connect (bind (&Player::process_image_subtitle, this, weak_ptr<Piece> (piece), _1, _2, _3, _4));
- fd->TextSubtitle.connect (bind (&Player::process_text_subtitle, this, weak_ptr<Piece> (piece), _1));
-
- fd->seek (fc->time_to_content_video_frames (fc->trim_start ()), true);
- piece->decoder = fd;
+ decoder.reset (new FFmpegDecoder (fc, _film->log()));
+ frc = FrameRateChange (fc->video_frame_rate(), _film->video_frame_rate());
}
-
+
+ /* ImageContent */
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;
+ decoder = imd;
}
}
- 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, 0));
- piece->decoder = id;
+ if (!decoder) {
+ decoder.reset (new ImageDecoder (ic));
}
+
+ frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate());
}
+ /* SndfileContent */
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));
-
- piece->decoder = sd;
+ decoder.reset (new SndfileDecoder (sc));
+ frc = best_overlap_frc;
}
+ /* SubRipContent */
shared_ptr<const SubRipContent> rc = dynamic_pointer_cast<const SubRipContent> (*i);
if (rc) {
- shared_ptr<SubRipDecoder> sd (new SubRipDecoder (_film, rc));
- sd->TextSubtitle.connect (bind (&Player::process_text_subtitle, this, weak_ptr<Piece> (piece), _1));
-
- piece->decoder = sd;
+ decoder.reset (new SubRipDecoder (rc));
+ frc = best_overlap_frc;
}
- _pieces.push_back (piece);
+ _pieces.push_back (shared_ptr<Piece> (new Piece (*i, decoder, frc.get ())));
}
_have_valid_pieces = true;
}
if (
- property == ContentProperty::POSITION || property == ContentProperty::LENGTH ||
- property == ContentProperty::TRIM_START || property == ContentProperty::TRIM_END ||
- property == VideoContentProperty::VIDEO_FRAME_TYPE
+ property == ContentProperty::POSITION ||
+ property == ContentProperty::LENGTH ||
+ property == ContentProperty::TRIM_START ||
+ property == ContentProperty::TRIM_END ||
+ property == ContentProperty::PATH ||
+ property == VideoContentProperty::VIDEO_FRAME_TYPE
) {
_have_valid_pieces = false;
Changed (frequent);
- } else if (property == SubtitleContentProperty::SUBTITLE_OFFSET || property == SubtitleContentProperty::SUBTITLE_SCALE) {
-
- update_subtitle_from_image ();
- update_subtitle_from_text ();
- Changed (frequent);
-
} else if (
- property == VideoContentProperty::VIDEO_CROP || property == VideoContentProperty::VIDEO_RATIO ||
+ property == SubtitleContentProperty::SUBTITLE_X_OFFSET ||
+ property == SubtitleContentProperty::SUBTITLE_Y_OFFSET ||
+ property == SubtitleContentProperty::SUBTITLE_SCALE ||
+ property == VideoContentProperty::VIDEO_CROP ||
+ property == VideoContentProperty::VIDEO_SCALE ||
property == VideoContentProperty::VIDEO_FRAME_RATE
) {
- Changed (frequent);
-
- } else if (property == ContentProperty::PATH) {
-
Changed (frequent);
}
}
}
void
-Player::set_video_container_size (libdcp::Size s)
+Player::set_video_container_size (dcp::Size s)
{
_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")
- )
- );
+ _black_image.reset (new Image (PIX_FMT_RGB24, _video_container_size, true));
+ _black_image->make_black ();
}
-shared_ptr<Resampler>
-Player::resampler (shared_ptr<AudioContent> c, bool create)
+void
+Player::film_changed (Film::Property p)
{
- map<shared_ptr<AudioContent>, shared_ptr<Resampler> >::iterator i = _resamplers.find (c);
- if (i != _resamplers.end ()) {
- return i->second;
- }
+ /* 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 (!create) {
- return shared_ptr<Resampler> ();
+ if (p == Film::SCALER || p == Film::WITH_SUBTITLES || p == Film::CONTAINER || p == Film::VIDEO_FRAME_RATE) {
+ Changed (false);
}
-
- _film->log()->log (
- String::compose (
- "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;
}
-void
-Player::emit_black ()
+list<PositionImage>
+Player::process_content_image_subtitles (shared_ptr<SubtitleContent> content, list<shared_ptr<ContentImageSubtitle> > subs) const
{
-#ifdef DCPOMATIC_DEBUG
- _last_video.reset ();
-#endif
+ list<PositionImage> all;
+
+ for (list<shared_ptr<ContentImageSubtitle> >::const_iterator i = subs.begin(); i != subs.end(); ++i) {
+ if (!(*i)->image) {
+ continue;
+ }
- 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;
+ dcpomatic::Rect<double> in_rect = (*i)->rectangle;
+ dcp::Size scaled_size;
+
+ in_rect.x += content->subtitle_x_offset ();
+ in_rect.y += content->subtitle_y_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 * content->subtitle_scale ();
+ scaled_size.height = in_rect.height * _video_container_size.height * content->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.
+ */
+
+ all.push_back (
+ PositionImage (
+ (*i)->image->scale (
+ scaled_size,
+ Scaler::from_id ("bicubic"),
+ (*i)->image->pixel_format (),
+ true
+ ),
+ Position<int> (
+ rint (_video_container_size.width * (in_rect.x + (in_rect.width * (1 - content->subtitle_scale ()) / 2))),
+ rint (_video_container_size.height * (in_rect.y + (in_rect.height * (1 - content->subtitle_scale ()) / 2)))
+ )
+ )
+ );
+ }
+
+ return all;
}
-void
-Player::emit_silence (OutputAudioFrame most)
+list<PositionImage>
+Player::process_content_text_subtitles (list<shared_ptr<ContentTextSubtitle> > sub) const
{
- if (most == 0) {
- return;
+ list<PositionImage> all;
+ for (list<shared_ptr<ContentTextSubtitle> >::const_iterator i = sub.begin(); i != sub.end(); ++i) {
+ if (!(*i)->subs.empty ()) {
+ all.push_back (render_subtitles ((*i)->subs, _video_container_size));
+ }
}
-
- 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);
+
+ return all;
}
void
-Player::film_changed (Film::Property p)
+Player::set_approximate_size ()
{
- /* 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 || p == Film::VIDEO_FRAME_RATE) {
- Changed (false);
- }
+ _approximate_size = true;
}
-void
-Player::process_image_subtitle (weak_ptr<Piece> weak_piece, shared_ptr<Image> image, dcpomatic::Rect<double> rect, Time from, Time to)
+shared_ptr<PlayerVideoFrame>
+Player::black_player_video_frame () const
{
- _image_subtitle.piece = weak_piece;
- _image_subtitle.image = image;
- _image_subtitle.rect = rect;
- _image_subtitle.from = from;
- _image_subtitle.to = to;
-
- update_subtitle_from_image ();
+ return shared_ptr<PlayerVideoFrame> (
+ new PlayerVideoFrame (
+ shared_ptr<const ImageProxy> (new RawImageProxy (_black_image)),
+ Crop (),
+ _video_container_size,
+ _video_container_size,
+ Scaler::from_id ("bicubic"),
+ EYES_BOTH,
+ PART_WHOLE,
+ Config::instance()->colour_conversions().front().conversion
+ )
+ );
}
-void
-Player::process_text_subtitle (weak_ptr<Piece>, list<libdcp::Subtitle> s)
+shared_ptr<PlayerVideoFrame>
+Player::content_to_player_video_frame (
+ shared_ptr<VideoContent> content,
+ ContentVideo content_video,
+ list<shared_ptr<Piece> > subs,
+ DCPTime time,
+ dcp::Size image_size) const
{
- _text_subtitles = s;
+ shared_ptr<PlayerVideoFrame> pvf (
+ new PlayerVideoFrame (
+ content_video.image,
+ content->crop (),
+ image_size,
+ _video_container_size,
+ _film->scaler(),
+ content_video.eyes,
+ content_video.part,
+ content->colour_conversion ()
+ )
+ );
+
- update_subtitle_from_text ();
+ /* Add subtitles */
+
+ list<PositionImage> sub_images;
+
+ for (list<shared_ptr<Piece> >::const_iterator i = subs.begin(); i != subs.end(); ++i) {
+ shared_ptr<SubtitleDecoder> subtitle_decoder = dynamic_pointer_cast<SubtitleDecoder> ((*i)->decoder);
+ shared_ptr<SubtitleContent> subtitle_content = dynamic_pointer_cast<SubtitleContent> ((*i)->content);
+ ContentTime const from = dcp_to_content_subtitle (*i, time);
+ ContentTime const to = from + ContentTime::from_frames (1, content->video_frame_rate ());
+
+ list<shared_ptr<ContentImageSubtitle> > image_subtitles = subtitle_decoder->get_image_subtitles (from, to);
+ if (!image_subtitles.empty ()) {
+ list<PositionImage> im = process_content_image_subtitles (
+ subtitle_content,
+ image_subtitles
+ );
+
+ copy (im.begin(), im.end(), back_inserter (sub_images));
+ }
+
+ if (_burn_subtitles) {
+ list<shared_ptr<ContentTextSubtitle> > text_subtitles = subtitle_decoder->get_text_subtitles (from, to);
+ if (!text_subtitles.empty ()) {
+ list<PositionImage> im = process_content_text_subtitles (text_subtitles);
+ copy (im.begin(), im.end(), back_inserter (sub_images));
+ }
+ }
+ }
+
+ if (!sub_images.empty ()) {
+ pvf->set_subtitle (merge (sub_images));
+ }
+
+ return pvf;
}
-/** Update _out_subtitle from _image_subtitle */
-void
-Player::update_subtitle_from_image ()
+/** @return All PlayerVideoFrames at the given time (there may be two frames for 3D) */
+list<shared_ptr<PlayerVideoFrame> >
+Player::get_video (DCPTime time, bool accurate)
{
- shared_ptr<Piece> piece = _image_subtitle.piece.lock ();
- if (!piece) {
- return;
+ if (!_have_valid_pieces) {
+ setup_pieces ();
}
+
+ list<shared_ptr<Piece> > ov = overlaps<VideoContent> (
+ time,
+ time + DCPTime::from_frames (1, _film->video_frame_rate ())
+ );
- if (!_image_subtitle.image) {
- _out_subtitle.image.reset ();
- return;
+ list<shared_ptr<PlayerVideoFrame> > pvf;
+
+ if (ov.empty ()) {
+ /* No video content at this time */
+ pvf.push_back (black_player_video_frame ());
+ return pvf;
}
- shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (piece->content);
- assert (sc);
-
- dcpomatic::Rect<double> in_rect = _image_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 = _image_subtitle.image->scale (
- scaled_size,
- Scaler::from_id ("bicubic"),
- _image_subtitle.image->pixel_format (),
- true
- );
+ /* Create a PlayerVideoFrame from the content's video at this time */
- /* XXX: hack */
- Time from = _image_subtitle.from;
- Time to = _image_subtitle.to;
- shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (piece->content);
- if (vc) {
- from = rint (from * vc->video_frame_rate() / _film->video_frame_rate());
- to = rint (to * vc->video_frame_rate() / _film->video_frame_rate());
+ shared_ptr<Piece> piece = ov.back ();
+ shared_ptr<VideoDecoder> decoder = dynamic_pointer_cast<VideoDecoder> (piece->decoder);
+ assert (decoder);
+ shared_ptr<VideoContent> content = dynamic_pointer_cast<VideoContent> (piece->content);
+ 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 ());
+ return pvf;
}
-
- _out_subtitle.from = from * piece->content->position ();
- _out_subtitle.to = to + piece->content->position ();
+
+ dcp::Size image_size = content->scale().size (content, _video_container_size, _film->frame_size ());
+ if (_approximate_size) {
+ image_size.width &= ~3;
+ image_size.height &= ~3;
+ }
+
+ for (list<ContentVideo>::const_iterator i = content_video.begin(); i != content_video.end(); ++i) {
+ list<shared_ptr<Piece> > subs = overlaps<SubtitleContent> (
+ time,
+ time + DCPTime::from_frames (1, _film->video_frame_rate ())
+ );
+
+ pvf.push_back (content_to_player_video_frame (content, *i, subs, time, image_size));
+ }
+
+ return pvf;
}
-/** 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 ()
+shared_ptr<AudioBuffers>
+Player::get_audio (DCPTime time, DCPTime length, bool accurate)
{
- if (!_last_incoming_video.image || !_have_valid_pieces) {
- return false;
+ if (!_have_valid_pieces) {
+ setup_pieces ();
}
- process_video (
- _last_incoming_video.weak_piece,
- _last_incoming_video.image,
- _last_incoming_video.eyes,
- _last_incoming_video.same,
- _last_incoming_video.frame,
- _last_incoming_video.extra
- );
+ AudioFrame const length_frames = length.frames (_film->audio_frame_rate ());
- return true;
-}
+ 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;
+ }
-void
-Player::update_subtitle_from_text ()
-{
- if (_text_subtitles.empty ()) {
- _out_subtitle.image.reset ();
- return;
+ for (list<shared_ptr<Piece> >::iterator i = ov.begin(); i != ov.end(); ++i) {
+
+ shared_ptr<AudioContent> content = dynamic_pointer_cast<AudioContent> ((*i)->content);
+ assert (content);
+ shared_ptr<AudioDecoder> decoder = dynamic_pointer_cast<AudioDecoder> ((*i)->decoder);
+ assert (decoder);
+
+ if (content->audio_frame_rate() == 0) {
+ /* This AudioContent has no audio (e.g. if it is an FFmpegContent with no
+ * audio stream).
+ */
+ continue;
+ }
+
+ /* The time that we should request from the content */
+ DCPTime request = time - DCPTime::from_seconds (content->audio_delay() / 1000.0);
+ 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 = DCPTime ();
+ }
+
+ AudioFrame const content_frame = dcp_to_content_audio (*i, request);
+
+ /* Audio from this piece's decoder (which might be more or less than what we asked for) */
+ shared_ptr<ContentAudio> all = decoder->get_audio (content_frame, length_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 = 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<dcp::Channel> (j)) > 0) {
+ dcp_mapped->accumulate_channel (
+ all->audio.get(),
+ i,
+ j,
+ map.get (i, static_cast<dcp::Channel> (j))
+ );
+ }
+ }
+ }
+
+ all->audio = dcp_mapped;
+
+ audio->accumulate_frames (
+ all->audio.get(),
+ content_frame - all->frame,
+ offset.frames (_film->audio_frame_rate()),
+ min (AudioFrame (all->audio->frames()), length_frames) - offset.frames (_film->audio_frame_rate ())
+ );
}
- render_subtitles (_text_subtitles, _video_container_size, _out_subtitle.image, _out_subtitle.position);
+ return audio;
}
-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)
+VideoFrame
+Player::dcp_to_content_video (shared_ptr<const Piece> piece, DCPTime t) const
{
+ /* s is the offset of t from the start position of this content */
+ DCPTime s = t - piece->content->position ();
+ s = DCPTime (max (int64_t (0), s.get ()));
+ s = DCPTime (min (piece->content->length_after_trim().get(), s.get()));
+ /* Convert this to the content frame */
+ return DCPTime (s + piece->content->trim_start()).frames (_film->video_frame_rate()) * piece->frc.factor ();
}
-void
-PlayerImage::set_subtitle (shared_ptr<const Image> image, Position<int> pos)
+AudioFrame
+Player::dcp_to_content_audio (shared_ptr<const Piece> piece, DCPTime t) const
{
- _subtitle_image = image;
- _subtitle_position = pos;
+ /* s is the offset of t from the start position of this content */
+ DCPTime s = t - piece->content->position ();
+ s = DCPTime (max (int64_t (0), s.get ()));
+ s = DCPTime (min (piece->content->length_after_trim().get(), s.get()));
+
+ /* Convert this to the content frame */
+ return DCPTime (s + piece->content->trim_start()).frames (_film->audio_frame_rate());
}
-shared_ptr<Image>
-PlayerImage::image ()
+ContentTime
+Player::dcp_to_content_subtitle (shared_ptr<const Piece> piece, DCPTime t) const
{
- shared_ptr<Image> out = _in->crop_scale_window (_crop, _inter_size, _out_size, _scaler, PIX_FMT_RGB24, false);
+ /* s is the offset of t from the start position of this content */
+ DCPTime s = t - piece->content->position ();
+ s = DCPTime (max (int64_t (0), s.get ()));
+ s = DCPTime (min (piece->content->length_after_trim().get(), s.get()));
- Position<int> const container_offset ((_out_size.width - _inter_size.width) / 2, (_out_size.height - _inter_size.width) / 2);
+ return ContentTime (s, piece->frc);
+}
- if (_subtitle_image) {
- out->alpha_blend (_subtitle_image, _subtitle_position);
- }
+void
+PlayerStatistics::dump (shared_ptr<Log> log) const
+{
+ log->log (String::compose ("Video: %1 good %2 skipped %3 black %4 repeat", video.good, video.skip, video.black, video.repeat));
+ log->log (String::compose ("Audio: %1 good %2 skipped %3 silence", audio.good, audio.skip, audio.silence.seconds()));
+}
- return out;
+PlayerStatistics const &
+Player::statistics () const
+{
+ return _statistics;
}
projects / dcpomatic.git / blobdiff