, _always_burn_subtitles (false)
, _fast (false)
, _play_referenced (false)
+ , _last_seek_accurate (true)
, _audio_merger (_film->audio_frame_rate())
{
_film_changed_connection = _film->Changed.connect (bind (&Player::film_changed, this, _1));
}
if (decoder->subtitle) {
- decoder->subtitle->ImageData.connect (bind (&Player::image_subtitle, this, weak_ptr<Piece> (piece), _1));
- decoder->subtitle->TextData.connect (bind (&Player::text_subtitle, this, weak_ptr<Piece> (piece), _1));
+ decoder->subtitle->ImageStart.connect (bind (&Player::image_subtitle_start, this, weak_ptr<Piece> (piece), _1));
+ decoder->subtitle->TextStart.connect (bind (&Player::text_subtitle_start, this, weak_ptr<Piece> (piece), _1));
+ decoder->subtitle->Stop.connect (bind (&Player::subtitle_stop, this, weak_ptr<Piece> (piece), _1));
}
}
_ignore_video = true;
}
-/** Set this player never to produce any audio data */
-void
-Player::set_ignore_audio ()
-{
- _ignore_audio = true;
-}
-
/** Set whether or not this player should always burn text subtitles into the image,
* regardless of the content settings.
* @param burn true to always burn subtitles, false to obey content settings.
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 overlaps;
-}
-
bool
Player::pass ()
{
}
}
- if (!earliest) {
- /* No more content; fill up with silent black */
- DCPTimePeriod remaining_video (DCPTime(), _playlist->length());
- if (_last_video_time) {
- remaining_video.from = _last_video_time.get() + one_video_frame();
- }
- fill_video (remaining_video);
- DCPTimePeriod remaining_audio (DCPTime(), _playlist->length());
- if (_last_audio_time) {
- remaining_audio.from = _last_audio_time.get();
+ if (earliest) {
+ earliest->done = earliest->decoder->pass ();
+ if (earliest->done && earliest->content->audio) {
+ /* Flush the Player audio system for this piece */
+ BOOST_FOREACH (AudioStreamPtr i, earliest->content->audio->streams()) {
+ audio_flush (earliest, i);
+ }
}
- fill_audio (remaining_audio);
- return true;
}
- earliest->done = earliest->decoder->pass ();
- if (earliest->done && earliest->content->audio) {
- /* Flush the Player audio system for this piece */
- BOOST_FOREACH (AudioStreamPtr i, earliest->content->audio->streams()) {
- audio_flush (earliest, i);
- }
+ DCPTime fill_towards = earliest ? earliest_content : _playlist->length();
+
+ optional<DCPTime> fill_from;
+ if (_last_video_time) {
+ /* No seek; fill towards the next thing that might happen (or the end of the playlist) */
+ fill_from = _last_video_time;
+ } else if (_last_seek_time && !_playlist->video_content_at(_last_seek_time.get())) {
+ /* Seek into an empty area; fill from the seek time */
+ fill_from = _last_seek_time;
+ }
+
+ if (fill_from && ((fill_towards - fill_from.get())) > one_video_frame()) {
+ emit_video (black_player_video_frame(), fill_from.get());
+ } else if (_playlist->length() == DCPTime()) {
+ emit_video (black_player_video_frame(), DCPTime());
+ }
+
+ if (!earliest && !fill_from) {
+ return true;
}
/* Emit any audio that is ready */
list<pair<shared_ptr<AudioBuffers>, DCPTime> > audio = _audio_merger.pull (pull_from);
for (list<pair<shared_ptr<AudioBuffers>, DCPTime> >::iterator i = audio.begin(); i != audio.end(); ++i) {
- DCPOMATIC_ASSERT (!_last_audio_time || i->second >= _last_audio_time.get());
+ if (_last_audio_time && i->second < _last_audio_time.get()) {
+ /* There has been an accurate seek and we have received some audio before the seek time;
+ discard it.
+ */
+ pair<shared_ptr<AudioBuffers>, DCPTime> cut = discard_audio (i->first, i->second, *_last_audio_time);
+ if (!cut.first) {
+ continue;
+ }
+ *i = cut;
+ }
+
if (_last_audio_time) {
fill_audio (DCPTimePeriod (_last_audio_time.get(), i->second));
}
+
Audio (i->first, i->second);
_last_audio_time = i->second + DCPTime::from_frames(i->first->frames(), _film->audio_frame_rate());
}
return false;
}
+optional<PositionImage>
+Player::subtitles_for_frame (DCPTime time) const
+{
+ list<PositionImage> subtitles;
+
+ BOOST_FOREACH (PlayerSubtitles i, _active_subtitles.get_burnt (time, _always_burn_subtitles)) {
+
+ /* Image subtitles */
+ list<PositionImage> c = transform_image_subtitles (i.image);
+ copy (c.begin(), c.end(), back_inserter (subtitles));
+
+ /* Text subtitles (rendered to an image) */
+ if (!i.text.empty ()) {
+ list<PositionImage> s = render_subtitles (i.text, i.fonts, _video_container_size, time);
+ copy (s.begin(), s.end(), back_inserter (subtitles));
+ }
+ }
+
+ if (subtitles.empty ()) {
+ return optional<PositionImage> ();
+ }
+
+ return merge (subtitles);
+}
+
void
Player::video (weak_ptr<Piece> wp, ContentVideo video)
{
DCPTime const time = content_video_to_dcp (piece, video.frame);
DCPTimePeriod const period (time, time + one_video_frame());
- /* Discard if it's outside the content's period */
- if (time < piece->content->position() || time >= piece->content->end()) {
+ /* Discard if it's outside the content's period or if it's before the last accurate seek */
+ if (
+ time < piece->content->position() ||
+ time >= piece->content->end() ||
+ (_last_seek_time && _last_seek_accurate && time < _last_seek_time.get())) {
return;
}
- /* Get any subtitles */
-
- optional<PositionImage> subtitles;
-
- for (list<pair<PlayerSubtitles, DCPTimePeriod> >::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
-
- if (!i->second.overlap (period)) {
- continue;
- }
-
- list<PositionImage> sub_images;
-
- /* Image subtitles */
- list<PositionImage> c = transform_image_subtitles (i->first.image);
- copy (c.begin(), c.end(), back_inserter (sub_images));
-
- /* Text subtitles (rendered to an image) */
- if (!i->first.text.empty ()) {
- list<PositionImage> s = render_subtitles (i->first.text, i->first.fonts, _video_container_size, time);
- copy (s.begin (), s.end (), back_inserter (sub_images));
- }
-
- if (!sub_images.empty ()) {
- subtitles = merge (sub_images);
- }
- }
-
- /* Fill gaps */
+ /* Fill gaps caused by (the hopefully rare event of) a decoder not emitting contiguous video. We have to do this here
+ as in the problematic case we are about to emit a frame which is not contiguous with the previous.
+ */
if (_last_video_time) {
- fill_video (DCPTimePeriod (_last_video_time.get() + one_video_frame(), time));
+ /* XXX: this may not work for 3D */
+ BOOST_FOREACH (DCPTimePeriod i, subtract(DCPTimePeriod (_last_video_time.get(), time), _no_video)) {
+ for (DCPTime j = i.from; j < i.to; j += one_video_frame()) {
+ if (_last_video) {
+ emit_video (shared_ptr<PlayerVideo> (new PlayerVideo (*_last_video)), j);
+ } else {
+ emit_video (black_player_video_frame(), j);
+ }
+ }
+ }
}
_last_video.reset (
)
);
- if (subtitles) {
- _last_video->set_subtitle (subtitles.get ());
- }
-
- _last_video_time = time;
-
- Video (_last_video, *_last_video_time);
-
- /* Discard any subtitles we no longer need */
-
- for (list<pair<PlayerSubtitles, DCPTimePeriod> >::iterator i = _subtitles.begin (); i != _subtitles.end(); ) {
- list<pair<PlayerSubtitles, DCPTimePeriod> >::iterator tmp = i;
- ++tmp;
-
- if (i->second.to < time) {
- _subtitles.erase (i);
- }
-
- i = tmp;
- }
+ emit_video (_last_video, time);
}
void
}
pair<shared_ptr<const AudioBuffers>, Frame> ro = r->flush ();
+ if (ro.first->frames() == 0) {
+ return;
+ }
+
ContentAudio content_audio;
content_audio.audio = ro.first;
content_audio.frame = ro.second;
void
Player::audio_transform (shared_ptr<AudioContent> content, AudioStreamPtr stream, ContentAudio content_audio, DCPTime time)
{
+ DCPOMATIC_ASSERT (content_audio.audio->frames() > 0);
+
/* Gain */
if (content->gain() != 0) {
void
Player::audio (weak_ptr<Piece> wp, AudioStreamPtr stream, ContentAudio content_audio)
{
+ DCPOMATIC_ASSERT (content_audio.audio->frames() > 0);
+
shared_ptr<Piece> piece = wp.lock ();
if (!piece) {
return;
if (stream->frame_rate() != content->resampled_frame_rate()) {
shared_ptr<Resampler> r = resampler (content, stream, true);
pair<shared_ptr<const AudioBuffers>, Frame> ro = r->run (content_audio.audio, content_audio.frame);
+ if (ro.first->frames() == 0) {
+ return;
+ }
content_audio.audio = ro.first;
content_audio.frame = ro.second;
}
/* Remove anything that comes before the start or after the end of the content */
if (time < piece->content->position()) {
- DCPTime const discard_time = piece->content->position() - time;
- Frame discard_frames = discard_time.frames_round(_film->audio_frame_rate());
- Frame remaining_frames = content_audio.audio->frames() - discard_frames;
- if (remaining_frames <= 0) {
+ pair<shared_ptr<AudioBuffers>, DCPTime> cut = discard_audio (content_audio.audio, time, piece->content->position());
+ if (!cut.first) {
/* This audio is entirely discarded */
return;
}
- shared_ptr<AudioBuffers> cut (new AudioBuffers (content_audio.audio->channels(), remaining_frames));
- cut->copy_from (content_audio.audio.get(), remaining_frames, discard_frames, 0);
- content_audio.audio = cut;
- time += discard_time;
+ content_audio.audio = cut.first;
+ time = cut.second;
} else if (time > piece->content->end()) {
/* Discard it all */
return;
} else if (end > piece->content->end()) {
Frame const remaining_frames = DCPTime(piece->content->end() - time).frames_round(_film->audio_frame_rate());
+ DCPOMATIC_ASSERT (remaining_frames > 0);
shared_ptr<AudioBuffers> cut (new AudioBuffers (content_audio.audio->channels(), remaining_frames));
cut->copy_from (content_audio.audio.get(), remaining_frames, 0, 0);
content_audio.audio = cut;
}
void
-Player::image_subtitle (weak_ptr<Piece> wp, ContentImageSubtitle subtitle)
+Player::image_subtitle
_start (weak_ptr<Piece> wp, ContentImageSubtitle subtitle)
{
shared_ptr<Piece> piece = wp.lock ();
if (!piece) {
PlayerSubtitles ps;
ps.image.push_back (subtitle.sub);
- DCPTimePeriod period (content_time_to_dcp (piece, subtitle.period().from), content_time_to_dcp (piece, subtitle.period().to));
+ DCPTime from (content_time_to_dcp (piece, subtitle.from()));
- if (piece->content->subtitle->use() && (piece->content->subtitle->burn() || _always_burn_subtitles)) {
- _subtitles.push_back (make_pair (ps, period));
- } else {
- Subtitle (ps, period);
- }
+ _active_subtitles.add_from (wp, ps, from);
}
void
-Player::text_subtitle (weak_ptr<Piece> wp, ContentTextSubtitle subtitle)
+Player::text_subtitle
_start (weak_ptr<Piece> wp, ContentTextSubtitle subtitle)
{
shared_ptr<Piece> piece = wp.lock ();
if (!piece) {
}
PlayerSubtitles ps;
- DCPTimePeriod const period (content_time_to_dcp (piece, subtitle.period().from), content_time_to_dcp (piece, subtitle.period().to));
+ DCPTime const from (content_time_to_dcp (piece, subtitle.from()));
BOOST_FOREACH (dcp::SubtitleString s, subtitle.subs) {
s.set_h_position (s.h_position() + piece->content->subtitle->x_offset ());
s.set_aspect_adjust (xs / ys);
}
- s.set_in (dcp::Time(period.from.seconds(), 1000));
- s.set_out (dcp::Time(period.to.seconds(), 1000));
+ s.set_in (dcp::Time(from.seconds(), 1000));
ps.text.push_back (SubtitleString (s, piece->content->subtitle->outline_width()));
ps.add_fonts (piece->content->subtitle->fonts ());
}
- if (piece->content->subtitle->use() && (piece->content->subtitle->burn() || _always_burn_subtitles)) {
- _subtitles.push_back (make_pair (ps, period));
- } else {
- Subtitle (ps, period);
+ _active_subtitles.add_from (wp, ps, from);
+}
+
+void
+Player::subtitle_stop (weak_ptr<Piece> wp, ContentTime to)
+{
+ if (!_active_subtitles.have (wp)) {
+ return;
+ }
+
+ shared_ptr<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
+ }
+
+ DCPTime const dcp_to = content_time_to_dcp (piece, to);
+
+ pair<PlayerSubtitles, DCPTime> from = _active_subtitles.add_to (wp, dcp_to);
+
+ if (piece->content->subtitle->use() && !_always_burn_subtitles && !piece->content->subtitle->burn()) {
+ Subtitle (from.first, DCPTimePeriod (from.second, dcp_to));
}
}
_audio_processor->flush ();
}
+ for (ResamplerMap::iterator i = _resamplers.begin(); i != _resamplers.end(); ++i) {
+ i->second->flush ();
+ i->second->reset ();
+ }
+
+ _audio_merger.clear ();
+ _active_subtitles.clear ();
+
BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
- if (i->content->position() <= time && time < i->content->end()) {
+ if (time < i->content->position()) {
+ /* Before; seek to 0 */
+ i->decoder->seek (ContentTime(), accurate);
+ i->done = false;
+ } else if (i->content->position() <= time && time < i->content->end()) {
+ /* During; seek to position */
i->decoder->seek (dcp_to_content_time (i, time), accurate);
i->done = false;
+ } else {
+ /* After; this piece is done */
+ i->done = true;
}
}
- if (accurate) {
- _last_video_time = time - one_video_frame ();
- _last_audio_time = time;
- } else {
- _last_video_time = optional<DCPTime> ();
- _last_audio_time = optional<DCPTime> ();
- }
+ _last_video_time = optional<DCPTime> ();
+ _last_audio_time = optional<DCPTime> ();
+ _last_seek_time = time;
+ _last_seek_accurate = accurate;
}
shared_ptr<Resampler>
}
void
-Player::fill_video (DCPTimePeriod period)
-{
- /* XXX: this may not work for 3D */
- BOOST_FOREACH (DCPTimePeriod i, subtract(period, _no_video)) {
- for (DCPTime j = i.from; j < i.to; j += one_video_frame()) {
- if (_playlist->video_content_at(j) && _last_video) {
- Video (shared_ptr<PlayerVideo> (new PlayerVideo (*_last_video)), j);
- } else {
- Video (black_player_video_frame(), j);
- }
- }
+Player::emit_video (shared_ptr<PlayerVideo> pv, DCPTime time)
+{
+ optional<PositionImage> subtitles = subtitles_for_frame (time);
+ if (subtitles) {
+ pv->set_subtitle (subtitles.get ());
}
+ Video (pv, time);
+ _last_video_time = time + one_video_frame();
+ _active_subtitles.clear_before (time);
}
void
{
return DCPTime::from_frames (1, _film->video_frame_rate ());
}
+
+pair<shared_ptr<AudioBuffers>, DCPTime>
+Player::discard_audio (shared_ptr<const AudioBuffers> audio, DCPTime time, DCPTime discard_to) const
+{
+ DCPTime const discard_time = discard_to - time;
+ Frame const discard_frames = discard_time.frames_round(_film->audio_frame_rate());
+ Frame remaining_frames = audio->frames() - discard_frames;
+ if (remaining_frames <= 0) {
+ return make_pair(shared_ptr<AudioBuffers>(), DCPTime());
+ }
+ shared_ptr<AudioBuffers> cut (new AudioBuffers (audio->channels(), remaining_frames));
+ cut->copy_from (audio.get(), remaining_frames, discard_frames, 0);
+ return make_pair(cut, time + discard_time);
+}
projects / dcpomatic.git / blobdiff