-/* -*- c-basic-offset: 8; default-tab-width: 8; -*- */
-
/*
Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
*/
+#include <stdint.h>
#include "player.h"
#include "film.h"
#include "ffmpeg_decoder.h"
#include "playlist.h"
#include "job.h"
#include "image.h"
+#include "ratio.h"
+#include "resampler.h"
using std::list;
using std::cout;
using std::min;
+using std::max;
using std::vector;
+using std::pair;
+using std::map;
using boost::shared_ptr;
using boost::weak_ptr;
using boost::dynamic_pointer_cast;
+#define DEBUG_PLAYER 1
+
+class Piece
+{
+public:
+ Piece (shared_ptr<Content> c)
+ : content (c)
+ , video_position (c->start ())
+ , audio_position (c->start ())
+ {}
+
+ Piece (shared_ptr<Content> c, shared_ptr<Decoder> d)
+ : content (c)
+ , decoder (d)
+ , video_position (c->start ())
+ , audio_position (c->start ())
+ {}
+
+ shared_ptr<Content> content;
+ shared_ptr<Decoder> decoder;
+ Time video_position;
+ Time audio_position;
+};
+
+#ifdef DEBUG_PLAYER
+std::ostream& operator<<(std::ostream& s, Piece const & p)
+{
+ if (dynamic_pointer_cast<FFmpegContent> (p.content)) {
+ s << "\tffmpeg ";
+ } else if (dynamic_pointer_cast<ImageMagickContent> (p.content)) {
+ s << "\timagemagick";
+ } else if (dynamic_pointer_cast<SndfileContent> (p.content)) {
+ s << "\tsndfile ";
+ }
+
+ s << " at " << p.content->start() << " until " << p.content->end();
+
+ return s;
+}
+#endif
+
Player::Player (shared_ptr<const Film> f, shared_ptr<const Playlist> p)
: _film (f)
, _playlist (p)
, _video (true)
, _audio (true)
- , _subtitles (true)
- , _have_valid_decoders (false)
- , _position (0)
- , _audio_buffers (MAX_AUDIO_CHANNELS, 0)
- , _last_video (0)
- , _last_was_black (false)
- , _last_audio (0)
+ , _have_valid_pieces (false)
+ , _video_position (0)
+ , _audio_position (0)
+ , _audio_buffers (f->dcp_audio_channels(), 0)
{
_playlist->Changed.connect (bind (&Player::playlist_changed, this));
_playlist->ContentChanged.connect (bind (&Player::content_changed, this, _1, _2));
+ set_video_container_size (_film->container()->size (_film->full_frame ()));
}
void
_audio = false;
}
-void
-Player::disable_subtitles ()
-{
- _subtitles = false;
-}
-
bool
Player::pass ()
{
- if (!_have_valid_decoders) {
- setup_decoders ();
- _have_valid_decoders = true;
+ if (!_have_valid_pieces) {
+ setup_pieces ();
+ _have_valid_pieces = true;
}
- /* Here we are just finding the active decoder with the earliest last emission time, then
- calling pass on it. If there is no decoder, we skip our position on until there is.
- Hence this method will cause video and audio to be emitted, and it is up to the
- process_{video,audio} methods to tidy it up.
- */
+#ifdef DEBUG_PLAYER
+ cout << "= PASS\n";
+#endif
- Time earliest_pos = TIME_MAX;
- shared_ptr<DecoderRecord> earliest;
- Time next_wait = TIME_MAX;
-
- for (list<shared_ptr<DecoderRecord> >::iterator i = _decoders.begin(); i != _decoders.end(); ++i) {
- Time const ts = (*i)->content->time();
- Time const te = (*i)->content->time() + (*i)->content->length (_film);
- if (ts <= _position && te > _position) {
- Time const pos = ts + (*i)->last;
- if (pos < earliest_pos) {
- earliest_pos = pos;
- earliest = *i;
- }
- }
+ Time earliest_t = TIME_MAX;
+ shared_ptr<Piece> earliest;
+ enum {
+ VIDEO,
+ AUDIO
+ } type = VIDEO;
- if (ts > _position) {
- next_wait = min (next_wait, ts - _position);
- }
- }
+ for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
+ if ((*i)->decoder->done ()) {
+ continue;
+ }
- if (earliest) {
- earliest->decoder->pass ();
- _position = earliest->last;
- } else if (next_wait < TIME_MAX) {
- _position += next_wait;
- } else {
- return true;
- }
+ if (dynamic_pointer_cast<VideoDecoder> ((*i)->decoder)) {
+ if ((*i)->video_position < earliest_t) {
+ earliest_t = (*i)->video_position;
+ earliest = *i;
+ type = VIDEO;
+ }
+ }
+
+ if (dynamic_pointer_cast<AudioDecoder> ((*i)->decoder)) {
+ if ((*i)->audio_position < earliest_t) {
+ earliest_t = (*i)->audio_position;
+ earliest = *i;
+ type = AUDIO;
+ }
+ }
+ }
+
+ if (!earliest) {
+#ifdef DEBUG_PLAYER
+ cout << "no earliest piece.\n";
+#endif
+
+ flush ();
+ return true;
+ }
+
+ switch (type) {
+ case VIDEO:
+ if (earliest_t > _video_position) {
+#ifdef DEBUG_PLAYER
+ cout << "no video here; emitting black frame.\n";
+#endif
+ emit_black ();
+ } else {
+#ifdef DEBUG_PLAYER
+ cout << "Pass " << *earliest << "\n";
+#endif
+ earliest->decoder->pass ();
+ }
+ break;
+
+ case AUDIO:
+ if (earliest_t > _audio_position) {
+#ifdef DEBUG_PLAYER
+ cout << "no audio here; emitting silence.\n";
+#endif
+ emit_silence (_film->time_to_audio_frames (earliest_t - _audio_position));
+ } else {
+#ifdef DEBUG_PLAYER
+ cout << "Pass " << *earliest << "\n";
+#endif
+ earliest->decoder->pass ();
+ }
+ break;
+ }
+
+#ifdef DEBUG_PLAYER
+ cout << "\tpost pass " << _video_position << " " << _audio_position << "\n";
+#endif
return false;
}
void
-Player::process_video (shared_ptr<DecoderRecord> dr, shared_ptr<const Image> image, bool same, shared_ptr<Subtitle> sub, Time time)
+Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image, bool same, VideoContent::Frame frame)
{
- shared_ptr<VideoDecoder> vd = dynamic_pointer_cast<VideoDecoder> (dr->decoder);
-
- Time const global_time = dr->content->time() + time;
- while ((global_time - _last_video) > 1) {
- /* Fill in with black */
- emit_black_frame ();
- }
+ 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->dcp_video_frame_rate());
+ if (frc.skip && (frame % 2) == 1) {
+ return;
+ }
+
+ image = image->crop (content->crop(), true);
+
+ libdcp::Size const image_size = content->ratio()->size (_video_container_size);
+
+ image = image->scale_and_convert_to_rgb (image_size, _film->scaler(), true);
+
+#if 0
+ if (film->with_subtitles ()) {
+ shared_ptr<Subtitle> sub;
+ if (_timed_subtitle && _timed_subtitle->displayed_at (t)) {
+ sub = _timed_subtitle->subtitle ();
+ }
+
+ if (sub) {
+ dcpomatic::Rect const tx = subtitle_transformed_area (
+ float (image_size.width) / content->video_size().width,
+ float (image_size.height) / content->video_size().height,
+ sub->area(), film->subtitle_offset(), film->subtitle_scale()
+ );
+
+ shared_ptr<Image> im = sub->image()->scale (tx.size(), film->scaler(), true);
+ image->alpha_blend (im, tx.position());
+ }
+ }
+#endif
+
+ if (image_size != _video_container_size) {
+ assert (image_size.width <= _video_container_size.width);
+ assert (image_size.height <= _video_container_size.height);
+ shared_ptr<Image> im (new SimpleImage (PIX_FMT_RGB24, _video_container_size, true));
+ im->make_black ();
+ im->copy (image, Position ((_video_container_size.width - image_size.width) / 2, (_video_container_size.height - image_size.height) / 2));
+ image = im;
+ }
+
+ Time time = content->start() + (frame * frc.factor() * TIME_HZ / _film->dcp_video_frame_rate());
+
+ Video (image, same, time);
+ time += TIME_HZ / _film->dcp_video_frame_rate();
+
+ if (frc.repeat) {
+ Video (image, true, time);
+ time += TIME_HZ / _film->dcp_video_frame_rate();
+ }
- Video (image, same, sub, global_time);
- dr->last = time;
- _last_video = global_time;
- _last_was_black = false;
+ _video_position = piece->video_position = time;
}
void
-Player::process_audio (shared_ptr<DecoderRecord> dr, shared_ptr<const AudioBuffers> audio, Time time)
+Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers> audio, AudioContent::Frame frame)
{
- /* XXX: mapping */
+ shared_ptr<Piece> piece = weak_piece.lock ();
+ if (!piece) {
+ return;
+ }
+
+ shared_ptr<AudioContent> content = dynamic_pointer_cast<AudioContent> (piece->content);
+ assert (content);
+
+ if (content->content_audio_frame_rate() != content->output_audio_frame_rate()) {
+ audio = resampler(content)->run (audio);
+ }
+
+ /* Remap channels */
+ shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->dcp_audio_channels(), audio->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) {
+ dcp_mapped->accumulate_channel (audio.get(), i->first, i->second);
+ }
/* The time of this audio may indicate that some of our buffered audio is not going to
be added to any more, so it can be emitted.
*/
- if (time > _last_audio) {
+ Time const time = content->start() + (frame * TIME_HZ / _film->dcp_audio_frame_rate());
+
+ if (time > _audio_position) {
/* We can emit some audio from our buffers */
- OutputAudioFrame const N = min (_film->time_to_audio_frames (time - _last_audio), static_cast<OutputAudioFrame> (_audio_buffers.frames()));
+ OutputAudioFrame const N = _film->time_to_audio_frames (time - _audio_position);
+ assert (N <= _audio_buffers.frames());
shared_ptr<AudioBuffers> emit (new AudioBuffers (_audio_buffers.channels(), N));
emit->copy_from (&_audio_buffers, N, 0, 0);
- Audio (emit, _last_audio);
- _last_audio += _film->audio_frames_to_time (N);
+ Audio (emit, _audio_position);
+ _audio_position = piece->audio_position = time + _film->audio_frames_to_time (N);
/* And remove it from our buffers */
if (_audio_buffers.frames() > N) {
}
/* Now accumulate the new audio into our buffers */
+ _audio_buffers.ensure_size (_audio_buffers.frames() + audio->frames());
+ _audio_buffers.accumulate_frames (audio.get(), 0, 0, audio->frames ());
+ _audio_buffers.set_frames (_audio_buffers.frames() + audio->frames());
+}
- if (_audio_buffers.frames() == 0) {
- /* We have no remaining data. Emit silence up to the start of this new data */
- if ((time - _last_audio) > 0) {
- emit_silence (time - _last_audio);
- }
- }
+void
+Player::flush ()
+{
+ if (_audio_buffers.frames() > 0) {
+ shared_ptr<AudioBuffers> emit (new AudioBuffers (_audio_buffers.channels(), _audio_buffers.frames()));
+ emit->copy_from (&_audio_buffers, _audio_buffers.frames(), 0, 0);
+ Audio (emit, _audio_position);
+ _audio_position += _film->audio_frames_to_time (_audio_buffers.frames ());
+ _audio_buffers.set_frames (0);
+ }
- _audio_buffers.ensure_size (time - _last_audio + audio->frames());
- _audio_buffers.accumulate (audio.get(), 0, _film->time_to_audio_frames (time - _last_audio));
- dr->last = time + _film->audio_frames_to_time (audio->frames ());
+ while (_video_position < _audio_position) {
+ emit_black ();
+ }
+
+ while (_audio_position < _video_position) {
+ emit_silence (_film->time_to_audio_frames (_video_position - _audio_position));
+ }
+
}
/** @return true on error */
-bool
+void
Player::seek (Time t)
{
- if (!_have_valid_decoders) {
- setup_decoders ();
- _have_valid_decoders = true;
+ if (!_have_valid_pieces) {
+ setup_pieces ();
+ _have_valid_pieces = true;
}
- if (_decoders.empty ()) {
- return true;
+ if (_pieces.empty ()) {
+ return;
}
- /* XXX */
+ 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;
+ }
+
+ Time s = t - vc->start ();
+ s = max (static_cast<Time> (0), s);
+ s = min (vc->length(), s);
+
+ FrameRateConversion frc (vc->video_frame_rate(), _film->dcp_video_frame_rate());
+ VideoContent::Frame f = s * _film->dcp_video_frame_rate() / (frc.factor() * TIME_HZ);
+ dynamic_pointer_cast<VideoDecoder>((*i)->decoder)->seek (f);
+ }
/* XXX: don't seek audio because we don't need to... */
-
- return false;
}
void
Player::seek_back ()
{
- /* XXX */
-}
-void
-Player::seek_forward ()
-{
- /* XXX */
}
-
void
-Player::setup_decoders ()
+Player::setup_pieces ()
{
- list<shared_ptr<DecoderRecord> > old_decoders = _decoders;
+ list<shared_ptr<Piece> > old_pieces = _pieces;
- _decoders.clear ();
+ _pieces.clear ();
Playlist::ContentList content = _playlist->content ();
+ sort (content.begin(), content.end(), ContentSorter ());
+
for (Playlist::ContentList::iterator i = content.begin(); i != content.end(); ++i) {
- shared_ptr<DecoderRecord> dr (new DecoderRecord);
- dr->content = *i;
-
+ shared_ptr<Piece> piece (new Piece (*i));
+
/* XXX: into content? */
shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
if (fc) {
- shared_ptr<FFmpegDecoder> fd (new FFmpegDecoder (_film, fc, _video, _audio, _subtitles));
+ shared_ptr<FFmpegDecoder> fd (new FFmpegDecoder (_film, fc, _video, _audio));
- fd->Video.connect (bind (&Player::process_video, this, dr, _1, _2, _3, _4));
- fd->Audio.connect (bind (&Player::process_audio, this, dr, _1, _2));
+ fd->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3));
+ fd->Audio.connect (bind (&Player::process_audio, this, piece, _1, _2));
- dr->decoder = fd;
+ piece->decoder = fd;
}
shared_ptr<const ImageMagickContent> ic = dynamic_pointer_cast<const ImageMagickContent> (*i);
shared_ptr<ImageMagickDecoder> id;
/* See if we can re-use an old ImageMagickDecoder */
- for (list<shared_ptr<DecoderRecord> >::const_iterator i = old_decoders.begin(); i != old_decoders.end(); ++i) {
- shared_ptr<ImageMagickDecoder> imd = dynamic_pointer_cast<ImageMagickDecoder> ((*i)->decoder);
+ for (list<shared_ptr<Piece> >::const_iterator j = old_pieces.begin(); j != old_pieces.end(); ++j) {
+ shared_ptr<ImageMagickDecoder> imd = dynamic_pointer_cast<ImageMagickDecoder> ((*j)->decoder);
if (imd && imd->content() == ic) {
id = imd;
}
if (!id) {
id.reset (new ImageMagickDecoder (_film, ic));
- id->Video.connect (bind (&Player::process_video, this, dr, _1, _2, _3, _4));
+ id->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3));
}
- dr->decoder = id;
+ piece->decoder = id;
}
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, dr, _1, _2));
+ sd->Audio.connect (bind (&Player::process_audio, this, piece, _1, _2));
- dr->decoder = sd;
+ piece->decoder = sd;
}
- _decoders.push_back (dr);
+ _pieces.push_back (piece);
}
- _position = 0;
+#ifdef DEBUG_PLAYER
+ cout << "=== Player setup:\n";
+ for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
+ cout << *(i->get()) << "\n";
+ }
+#endif
}
void
return;
}
- if (p == VideoContentProperty::VIDEO_LENGTH) {
- _have_valid_decoders = false;
+ if (p == ContentProperty::START || p == ContentProperty::LENGTH) {
+ _have_valid_pieces = false;
}
}
void
Player::playlist_changed ()
{
- _have_valid_decoders = false;
+ _have_valid_pieces = false;
}
void
-Player::emit_black_frame ()
+Player::set_video_container_size (libdcp::Size s)
{
- shared_ptr<SimpleImage> image (new SimpleImage (AV_PIX_FMT_RGB24, libdcp::Size (128, 128), true));
- Video (image, _last_was_black, shared_ptr<Subtitle> (), _last_video);
- _last_video += _film->video_frames_to_time (1);
+ _video_container_size = s;
+ _black_frame.reset (new SimpleImage (PIX_FMT_RGB24, _video_container_size, true));
+ _black_frame->make_black ();
}
-void
-Player::emit_silence (Time t)
+shared_ptr<Resampler>
+Player::resampler (shared_ptr<AudioContent> c)
{
- OutputAudioFrame frames = _film->time_to_audio_frames (t);
- while (frames) {
- /* Do this in half-second chunks so we don't overwhelm anybody */
- OutputAudioFrame this_time = min (_film->dcp_audio_frame_rate() / 2, frames);
- shared_ptr<AudioBuffers> silence (new AudioBuffers (MAX_AUDIO_CHANNELS, this_time));
- silence->make_silent ();
- Audio (silence, _last_audio);
- _last_audio += _film->audio_frames_to_time (this_time);
- frames -= this_time;
+ map<shared_ptr<AudioContent>, shared_ptr<Resampler> >::iterator i = _resamplers.find (c);
+ if (i != _resamplers.end ()) {
+ return i->second;
}
+
+ 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 ()
+{
+ /* XXX: use same here */
+ Video (_black_frame, false, _video_position);
+ _video_position += _film->video_frames_to_time (1);
}
+
+void
+Player::emit_silence (OutputAudioFrame most)
+{
+ OutputAudioFrame N = min (most, _film->dcp_audio_frame_rate() / 2);
+ shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->dcp_audio_channels(), N));
+ silence->make_silent ();
+ Audio (silence, _audio_position);
+ _audio_position += _film->audio_frames_to_time (N);
+}
+
+
+
projects / dcpomatic.git / blobdiff