-/* -*- 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 "null_content.h"
+#include "black_decoder.h"
+#include "silence_decoder.h"
using std::list;
using std::cout;
using std::min;
+using std::max;
using std::vector;
using boost::shared_ptr;
using boost::weak_ptr;
using boost::dynamic_pointer_cast;
+struct Piece
+{
+ Piece (shared_ptr<Content> c, shared_ptr<Decoder> d)
+ : content (c)
+ , decoder (d)
+ {}
+
+ shared_ptr<Content> content;
+ shared_ptr<Decoder> decoder;
+};
+
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)
+ , _have_valid_pieces (false)
, _position (0)
- , _audio_buffers (MAX_AUDIO_CHANNELS, 0)
- , _last_video (0)
- , _last_was_black (false)
- , _last_audio (0)
+ , _audio_buffers (f->dcp_audio_channels(), 0)
+ , _next_audio (0)
{
_playlist->Changed.connect (bind (&Player::playlist_changed, this));
_playlist->ContentChanged.connect (bind (&Player::content_changed, this, _1, _2));
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.
+ calling pass on it.
*/
- 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;
- if (ts > _position) {
- next_wait = min (next_wait, ts - _position);
- }
- }
+ for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
+ cout << "check " << (*i)->content->file()
+ << " start=" << (*i)->content->start()
+ << ", next=" << (*i)->decoder->next()
+ << ", end=" << (*i)->content->end() << "\n";
+
+ 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 (!_audio && dynamic_pointer_cast<AudioDecoder> ((*i)->decoder) && !dynamic_pointer_cast<VideoDecoder> ((*i)->decoder)) {
+ continue;
+ }
+
+ Time const t = (*i)->content->start() + (*i)->decoder->next();
+ if (t < earliest_t) {
+ cout << "\t candidate; " << t << " " << (t / TIME_HZ) << ".\n";
+ earliest_t = t;
+ earliest = *i;
+ }
+ }
+
+ if (!earliest) {
+ flush ();
+ return true;
+ }
+
+ cout << "PASS:\n";
+ cout << "\tpass " << earliest->content->file() << " ";
+ if (dynamic_pointer_cast<FFmpegContent> (earliest->content)) {
+ cout << " FFmpeg.\n";
+ } else if (dynamic_pointer_cast<ImageMagickContent> (earliest->content)) {
+ cout << " ImageMagickContent.\n";
+ } else if (dynamic_pointer_cast<SndfileContent> (earliest->content)) {
+ cout << " SndfileContent.\n";
+ } else if (dynamic_pointer_cast<BlackDecoder> (earliest->decoder)) {
+ cout << " Black.\n";
+ } else if (dynamic_pointer_cast<SilenceDecoder> (earliest->decoder)) {
+ cout << " Silence.\n";
+ }
+
+ earliest->decoder->pass ();
+ _position = earliest->content->start() + earliest->decoder->next ();
+ cout << "\tpassed to " << _position << " " << (_position / TIME_HZ) << "\n";
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<Content> weak_content, shared_ptr<const Image> image, bool same, Time time)
{
- 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 ();
- }
-
- Video (image, same, sub, global_time);
- dr->last = time;
- _last_video = global_time;
- _last_was_black = false;
+ shared_ptr<Content> content = weak_content.lock ();
+ if (!content) {
+ return;
+ }
+
+ time += content->start ();
+
+ Video (image, same, time);
}
void
-Player::process_audio (shared_ptr<DecoderRecord> dr, shared_ptr<const AudioBuffers> audio, Time time)
+Player::process_audio (weak_ptr<Content> weak_content, shared_ptr<const AudioBuffers> audio, Time time)
{
- /* XXX: mapping */
-
+ shared_ptr<Content> content = weak_content.lock ();
+ if (!content) {
+ return;
+ }
+
/* 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 += content->start ();
+
+ if (time > _next_audio) {
/* 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 - _next_audio);
+ 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, _next_audio);
+ _next_audio += _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);
- }
- }
-
- _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 ());
+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, _next_audio);
+ _next_audio += _film->audio_frames_to_time (_audio_buffers.frames ());
+ _audio_buffers.set_frames (0);
+ }
}
/** @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 */
+// cout << "seek to " << t << " " << (t / TIME_HZ) << "\n";
- /* XXX: don't seek audio because we don't need to... */
+ for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
+ Time s = t - (*i)->content->start ();
+ s = max (static_cast<Time> (0), s);
+ s = min ((*i)->content->length(), s);
+// cout << "seek [" << (*i)->content->file() << "," << (*i)->content->start() << "," << (*i)->content->end() << "] to " << s << "\n";
+ (*i)->decoder->seek (s);
+ }
- return false;
+ /* XXX: don't seek audio because we don't need to... */
}
void
Player::seek_back ()
{
- /* XXX */
+
}
void
Player::seek_forward ()
{
- /* XXX */
+
+}
+
+void
+Player::add_black_piece (Time s, Time len)
+{
+ shared_ptr<NullContent> nc (new NullContent (_film, s, len));
+ nc->set_ratio (_film->container ());
+ shared_ptr<BlackDecoder> bd (new BlackDecoder (_film, nc));
+ bd->Video.connect (bind (&Player::process_video, this, nc, _1, _2, _3));
+ _pieces.push_back (shared_ptr<Piece> (new Piece (nc, bd)));
+ cout << "\tblack @ " << s << " -- " << (s + len) << "\n";
+}
+
+void
+Player::add_silent_piece (Time s, Time len)
+{
+ shared_ptr<NullContent> nc (new NullContent (_film, s, len));
+ shared_ptr<SilenceDecoder> sd (new SilenceDecoder (_film, nc));
+ sd->Audio.connect (bind (&Player::process_audio, this, nc, _1, _2));
+ _pieces.push_back (shared_ptr<Piece> (new Piece (nc, sd)));
+ cout << "\tsilence @ " << s << " -- " << (s + len) << "\n";
}
void
-Player::setup_decoders ()
+Player::setup_pieces ()
{
- list<shared_ptr<DecoderRecord> > old_decoders = _decoders;
+ cout << "----- Player SETUP PIECES.\n";
- _decoders.clear ();
+ list<shared_ptr<Piece> > old_pieces = _pieces;
+
+ _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<Decoder> decoder;
/* XXX: into content? */
if (fc) {
shared_ptr<FFmpegDecoder> fd (new FFmpegDecoder (_film, fc, _video, _audio, _subtitles));
- 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, *i, _1, _2, _3));
+ fd->Audio.connect (bind (&Player::process_audio, this, *i, _1, _2));
- dr->decoder = fd;
+ decoder = fd;
+ cout << "\tFFmpeg @ " << fc->start() << " -- " << fc->end() << "\n";
}
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, *i, _1, _2, _3));
}
- dr->decoder = id;
+ decoder = id;
+ cout << "\tImageMagick @ " << ic->start() << " -- " << ic->end() << "\n";
}
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, *i, _1, _2));
+
+ decoder = sd;
+ cout << "\tSndfile @ " << sc->start() << " -- " << sc->end() << "\n";
+ }
+
+ _pieces.push_back (shared_ptr<Piece> (new Piece (*i, decoder)));
+ }
- dr->decoder = sd;
+ /* Fill in visual gaps with black and audio gaps with silence */
+
+ Time video_pos = 0;
+ Time audio_pos = 0;
+ list<shared_ptr<Piece> > pieces_copy = _pieces;
+ for (list<shared_ptr<Piece> >::iterator i = pieces_copy.begin(); i != pieces_copy.end(); ++i) {
+ if (dynamic_pointer_cast<VideoContent> ((*i)->content)) {
+ Time const diff = (*i)->content->start() - video_pos;
+ if (diff > 0) {
+ add_black_piece (video_pos, diff);
+ }
+ video_pos = (*i)->content->end();
}
- _decoders.push_back (dr);
+ shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> ((*i)->content);
+ if (ac && ac->audio_channels()) {
+ Time const diff = (*i)->content->start() - audio_pos;
+ if (diff > 0) {
+ add_silent_piece (video_pos, diff);
+ }
+ audio_pos = (*i)->content->end();
+ }
}
- _position = 0;
+ if (video_pos < audio_pos) {
+ add_black_piece (video_pos, audio_pos - video_pos);
+ } else if (audio_pos < video_pos) {
+ add_silent_piece (audio_pos, video_pos - audio_pos);
+ }
}
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;
-}
-
-void
-Player::emit_black_frame ()
-{
- 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);
-}
-
-void
-Player::emit_silence (Time t)
-{
- 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;
- }
+ _have_valid_pieces = false;
}
projects / dcpomatic.git / blobdiff