/*
- Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2017 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
#include "content_subtitle.h"
#include "dcp_decoder.h"
#include "image_decoder.h"
+#include "resampler.h"
+#include "compose.hpp"
#include <dcp/reel.h>
#include <dcp/reel_sound_asset.h>
#include <dcp/reel_subtitle_asset.h>
, _always_burn_subtitles (false)
, _fast (false)
, _play_referenced (false)
- , _audio_merger (_film->audio_channels(), _film->audio_frame_rate())
+ , _audio_merger (_film->audio_frame_rate())
{
_film_changed_connection = _film->Changed.connect (bind (&Player::film_changed, this, _1));
_playlist_changed_connection = _playlist->Changed.connect (bind (&Player::playlist_changed, this));
set_video_container_size (_film->frame_size ());
film_changed (Film::AUDIO_PROCESSOR);
+
+ seek (DCPTime (), true);
}
void
decoder->audio->set_ignore ();
}
- if (decoder->audio && _fast) {
- decoder->audio->set_fast ();
- }
-
shared_ptr<DCPDecoder> dcp = dynamic_pointer_cast<DCPDecoder> (decoder);
if (dcp && _play_referenced) {
dcp->set_decode_referenced ();
}
}
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ if (i->content->audio) {
+ BOOST_FOREACH (AudioStreamPtr j, i->content->audio->streams()) {
+ _stream_states[j] = StreamState (i, i->content->position ());
+ }
+ }
+ }
+
+ if (!_play_referenced) {
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ shared_ptr<DCPContent> dc = dynamic_pointer_cast<DCPContent> (i->content);
+ if (dc) {
+ if (dc->reference_video()) {
+ _no_video.push_back (DCPTimePeriod (dc->position(), dc->end()));
+ }
+ if (dc->reference_audio()) {
+ _no_audio.push_back (DCPTimePeriod (dc->position(), dc->end()));
+ }
+ }
+ }
+ }
+
+ _last_video_time = optional<DCPTime> ();
+ _last_audio_time = optional<DCPTime> ();
_have_valid_pieces = true;
}
void
Player::set_video_container_size (dcp::Size s)
{
+ if (s == _video_container_size) {
+ return;
+ }
+
_video_container_size = s;
_black_image.reset (new Image (AV_PIX_FMT_RGB24, _video_container_size, true));
_black_image->make_black ();
+
+ Changed (false);
}
void
Player::resampled_audio_to_dcp (shared_ptr<const Piece> piece, Frame f) const
{
/* See comment in dcp_to_content_video */
- DCPTime const d = DCPTime::from_frames (f, _film->audio_frame_rate()) - DCPTime (piece->content->trim_start (), piece->frc);
+ DCPTime const d = DCPTime::from_frames (f, _film->audio_frame_rate()) - DCPTime (piece->content->trim_start(), piece->frc);
return max (DCPTime (), d + piece->content->position ());
}
}
shared_ptr<Piece> earliest;
- DCPTime earliest_position;
+ DCPTime earliest_content;
+
BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
- DCPTime const t = i->content->position() + DCPTime (i->decoder->position(), i->frc);
- if (!earliest || t < earliest_position) {
- earliest_position = t;
- earliest = i;
+ if (!i->done) {
+ DCPTime const t = i->content->position() + DCPTime (i->decoder->position(), i->frc);
+ if (!earliest || t < earliest_content) {
+ earliest_content = t;
+ earliest = i;
+ }
}
}
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();
+ }
+ fill_audio (remaining_audio);
return true;
}
- earliest->decoder->pass ();
+ 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);
+ }
+ }
/* Emit any audio that is ready */
- pair<shared_ptr<AudioBuffers>, DCPTime> audio = _audio_merger.pull (earliest_position);
- if (audio.first->frames() > 0) {
- DCPOMATIC_ASSERT (audio.second >= _last_audio_time);
- DCPTime t = _last_audio_time;
- while (t < audio.second) {
- /* Silence up to the time of this new audio */
- DCPTime block = min (DCPTime::from_seconds (0.5), audio.second - t);
- shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), block.frames_round(_film->audio_frame_rate())));
- silence->make_silent ();
- Audio (silence, t);
- t += block;
+ DCPTime pull_from = _playlist->length ();
+ for (map<AudioStreamPtr, StreamState>::const_iterator i = _stream_states.begin(); i != _stream_states.end(); ++i) {
+ if (!i->second.piece->done && i->second.last_push_end < pull_from) {
+ pull_from = i->second.last_push_end;
+ }
+ }
+
+ 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) {
+ 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 (audio.first, audio.second);
- _last_audio_time = audio.second;
+ Audio (i->first, i->second);
+ _last_audio_time = i->second + DCPTime::from_frames(i->first->frames(), _film->audio_frame_rate());
}
return false;
return;
}
+ FrameRateChange frc(piece->content->active_video_frame_rate(), _film->video_frame_rate());
+ if (frc.skip && (video.frame % 2) == 1) {
+ return;
+ }
+
/* Time and period of the frame we will emit */
- DCPTime const time = content_video_to_dcp (piece, video.frame.index());
- DCPTimePeriod const period (time, time + DCPTime::from_frames (1, _film->video_frame_rate()));
+ 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()) {
+ return;
+ }
/* Get any subtitles */
/* Fill gaps */
- if (_last_time) {
- /* XXX: this may not work for 3D */
- DCPTime const frame = DCPTime::from_frames (1, _film->video_frame_rate());
- for (DCPTime i = _last_time.get() + frame; i < time; i += frame) {
- if (_playlist->video_content_at(i) && _last_video) {
- Video (shared_ptr<PlayerVideo> (new PlayerVideo (*_last_video)), i);
- } else {
- Video (black_player_video_frame (), i);
- }
- }
+ if (_last_video_time) {
+ fill_video (DCPTimePeriod (_last_video_time.get() + one_video_frame(), time));
}
_last_video.reset (
new PlayerVideo (
video.image,
piece->content->video->crop (),
- piece->content->video->fade (video.frame.index()),
+ piece->content->video->fade (video.frame),
piece->content->video->scale().size (
piece->content->video, _video_container_size, _film->frame_size ()
),
_video_container_size,
- video.frame.eyes(),
+ video.eyes,
video.part,
piece->content->video->colour_conversion ()
)
_last_video->set_subtitle (subtitles.get ());
}
- _last_time = time;
+ _last_video_time = time;
- Video (_last_video, *_last_time);
+ Video (_last_video, *_last_video_time);
/* Discard any subtitles we no longer need */
}
void
-Player::audio (weak_ptr<Piece> wp, AudioStreamPtr stream, ContentAudio content_audio)
+Player::audio_flush (shared_ptr<Piece> piece, AudioStreamPtr stream)
{
- shared_ptr<Piece> piece = wp.lock ();
- if (!piece) {
+ shared_ptr<AudioContent> content = piece->content->audio;
+ DCPOMATIC_ASSERT (content);
+
+ shared_ptr<Resampler> r = resampler (content, stream, false);
+ if (!r) {
return;
}
- shared_ptr<AudioContent> content = piece->content->audio;
- DCPOMATIC_ASSERT (content);
+ 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;
+
+ /* Compute time in the DCP */
+ DCPTime time = resampled_audio_to_dcp (piece, content_audio.frame) + DCPTime::from_seconds (content->delay() / 1000.0);
- shared_ptr<AudioBuffers> audio = content_audio.audio;
+ audio_transform (content, stream, content_audio, time);
+}
+
+/** Do our common processing on some audio */
+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) {
- shared_ptr<AudioBuffers> gain (new AudioBuffers (audio));
+ shared_ptr<AudioBuffers> gain (new AudioBuffers (content_audio.audio));
gain->apply_gain (content->gain ());
- audio = gain;
+ content_audio.audio = gain;
}
- /* XXX: end-trimming used to be checked here */
-
- /* Compute time in the DCP */
- DCPTime const time = resampled_audio_to_dcp (piece, content_audio.frame) + DCPTime::from_seconds (content->delay() / 1000);
+ /* Remap */
- /* Remap channels */
- shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), audio->frames()));
+ shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), content_audio.audio->frames()));
dcp_mapped->make_silent ();
AudioMapping map = stream->mapping ();
for (int j = 0; j < dcp_mapped->channels(); ++j) {
if (map.get (i, static_cast<dcp::Channel> (j)) > 0) {
dcp_mapped->accumulate_channel (
- audio.get(),
+ content_audio.audio.get(),
i,
static_cast<dcp::Channel> (j),
map.get (i, static_cast<dcp::Channel> (j))
}
}
- audio = dcp_mapped;
+ content_audio.audio = dcp_mapped;
+
+ /* Process */
if (_audio_processor) {
- audio = _audio_processor->run (audio, _film->audio_channels ());
+ content_audio.audio = _audio_processor->run (content_audio.audio, _film->audio_channels ());
}
- _audio_merger.push (audio, time);
+ /* Push */
+
+ _audio_merger.push (content_audio.audio, time);
+ DCPOMATIC_ASSERT (_stream_states.find (stream) != _stream_states.end ());
+ _stream_states[stream].last_push_end = time + DCPTime::from_frames (content_audio.audio->frames(), _film->audio_frame_rate());
+}
+
+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;
+ }
+
+ shared_ptr<AudioContent> content = piece->content->audio;
+ DCPOMATIC_ASSERT (content);
+
+ /* Resample */
+ 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;
+ }
+
+ /* Compute time in the DCP */
+ DCPTime time = resampled_audio_to_dcp (piece, content_audio.frame) + DCPTime::from_seconds (content->delay() / 1000.0);
+ /* And the end of this block in the DCP */
+ DCPTime end = time + DCPTime::from_frames(content_audio.audio->frames(), content->resampled_frame_rate());
+
+ /* Remove anything that comes before the start or after the end of the content */
+ if (time < piece->content->position()) {
+ pair<shared_ptr<AudioBuffers>, DCPTime> cut = discard_audio (content_audio.audio, time, piece->content->position());
+ if (!cut.first) {
+ /* This audio is entirely discarded */
+ return;
+ }
+ 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;
+ }
+
+ audio_transform (content, stream, content_audio, time);
}
void
void
Player::seek (DCPTime time, bool accurate)
{
+ if (_audio_processor) {
+ _audio_processor->flush ();
+ }
+
+ for (ResamplerMap::iterator i = _resamplers.begin(); i != _resamplers.end(); ++i) {
+ i->second->flush ();
+ i->second->reset ();
+ }
+
+ _audio_merger.clear ();
+
BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ i->done = false;
if (i->content->position() <= time && time < i->content->end()) {
i->decoder->seek (dcp_to_content_time (i, time), accurate);
}
}
if (accurate) {
- _last_time = time - DCPTime::from_frames (1, _film->video_frame_rate ());
+ _last_video_time = time - one_video_frame ();
+ _last_audio_time = time;
} else {
- _last_time = optional<DCPTime> ();
+ _last_video_time = optional<DCPTime> ();
+ _last_audio_time = optional<DCPTime> ();
+ }
+}
+
+shared_ptr<Resampler>
+Player::resampler (shared_ptr<const AudioContent> content, AudioStreamPtr stream, bool create)
+{
+ ResamplerMap::const_iterator i = _resamplers.find (make_pair (content, stream));
+ if (i != _resamplers.end ()) {
+ return i->second;
+ }
+
+ if (!create) {
+ return shared_ptr<Resampler> ();
+ }
+
+ LOG_GENERAL (
+ "Creating new resampler from %1 to %2 with %3 channels",
+ stream->frame_rate(),
+ content->resampled_frame_rate(),
+ stream->channels()
+ );
+
+ shared_ptr<Resampler> r (
+ new Resampler (stream->frame_rate(), content->resampled_frame_rate(), stream->channels())
+ );
+
+ _resamplers[make_pair(content, stream)] = r;
+ return r;
+}
+
+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);
+ }
+ }
+ }
+}
+
+void
+Player::fill_audio (DCPTimePeriod period)
+{
+ BOOST_FOREACH (DCPTimePeriod i, subtract(period, _no_audio)) {
+ DCPTime t = i.from;
+ while (t < i.to) {
+ DCPTime block = min (DCPTime::from_seconds (0.5), i.to - t);
+ Frame const samples = block.frames_round(_film->audio_frame_rate());
+ if (samples) {
+ shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), samples));
+ silence->make_silent ();
+ Audio (silence, t);
+ }
+ t += block;
+ }
+ }
+}
+
+DCPTime
+Player::one_video_frame () const
+{
+ 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