#include "playlist.h"
#include "job.h"
#include "image.h"
-#include "null_content.h"
-#include "black_decoder.h"
-#include "silence_decoder.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
-struct Piece
+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<NullContent> (p.content)) {
- if (dynamic_pointer_cast<SilenceDecoder> (p.decoder)) {
- s << "\tsilence ";
- } else {
- s << "\tblack ";
- }
- } else if (dynamic_pointer_cast<FFmpegContent> (p.content)) {
+ if (dynamic_pointer_cast<FFmpegContent> (p.content)) {
s << "\tffmpeg ";
} else if (dynamic_pointer_cast<ImageMagickContent> (p.content)) {
s << "\timagemagick";
, _video (true)
, _audio (true)
, _have_valid_pieces (false)
- , _position (0)
+ , _video_position (0)
+ , _audio_position (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));
+ set_video_container_size (_film->container()->size (_film->full_frame ()));
}
void
_have_valid_pieces = true;
}
- /* Here we are just finding the active decoder with the earliest last emission time, then
- calling pass on it.
- */
+#ifdef DEBUG_PLAYER
+ cout << "= PASS\n";
+#endif
Time earliest_t = TIME_MAX;
shared_ptr<Piece> earliest;
+ enum {
+ VIDEO,
+ AUDIO
+ } type = VIDEO;
for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
if ((*i)->decoder->done ()) {
continue;
}
- if (!_audio && dynamic_pointer_cast<AudioDecoder> ((*i)->decoder) && !dynamic_pointer_cast<VideoDecoder> ((*i)->decoder)) {
- continue;
+ if (dynamic_pointer_cast<VideoDecoder> ((*i)->decoder)) {
+ if ((*i)->video_position < earliest_t) {
+ earliest_t = (*i)->video_position;
+ earliest = *i;
+ type = VIDEO;
+ }
}
-
- Time const t = (*i)->content->start() + (*i)->decoder->position();
- if (t < earliest_t) {
- earliest_t = t;
- earliest = *i;
+
+ 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;
}
- earliest->decoder->pass ();
- _position = earliest->content->start() + earliest->decoder->position ();
+ 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 (weak_ptr<Content> weak_content, shared_ptr<const Image> image, bool same, Time time)
+Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image, bool same, VideoContent::Frame frame)
{
- shared_ptr<Content> content = weak_content.lock ();
- if (!content) {
+ 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);
- time += content->start ();
+ 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_position = piece->video_position = time;
}
void
-Player::process_audio (weak_ptr<Content> weak_content, shared_ptr<const AudioBuffers> audio, Time time)
+Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers> audio, AudioContent::Frame frame)
{
- shared_ptr<Content> content = weak_content.lock ();
- if (!content) {
+ 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.
*/
- time += content->start ();
+ Time const time = content->start() + (frame * TIME_HZ / _film->dcp_audio_frame_rate());
- cout << "Player gets " << audio->frames() << " @ " << time << " cf " << _next_audio << "\n";
-
- if (time > _next_audio) {
+ if (time > _audio_position) {
/* We can emit some audio from our buffers */
- OutputAudioFrame const N = _film->time_to_audio_frames (time - _next_audio);
+ 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, _next_audio);
- _next_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) {
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 (emit, _audio_position);
+ _audio_position += _film->audio_frames_to_time (_audio_buffers.frames ());
_audio_buffers.set_frames (0);
}
+
+ 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 */
}
for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- Time s = t - (*i)->content->start ();
+ 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 ((*i)->content->length(), s);
- (*i)->decoder->seek (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... */
}
-void
-Player::seek_forward ()
-{
-
-}
-
-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)));
-}
-
-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)));
-}
-
-
void
Player::setup_pieces ()
{
for (Playlist::ContentList::iterator i = content.begin(); i != content.end(); ++i) {
- shared_ptr<Decoder> decoder;
-
+ 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));
- fd->Video.connect (bind (&Player::process_video, this, *i, _1, _2, _3));
- fd->Audio.connect (bind (&Player::process_audio, this, *i, _1, _2));
- if (_video_container_size) {
- fd->set_video_container_size (_video_container_size.get ());
- }
+ fd->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3));
+ fd->Audio.connect (bind (&Player::process_audio, this, piece, _1, _2));
- decoder = fd;
+ piece->decoder = fd;
}
shared_ptr<const ImageMagickContent> ic = dynamic_pointer_cast<const ImageMagickContent> (*i);
if (!id) {
id.reset (new ImageMagickDecoder (_film, ic));
- id->Video.connect (bind (&Player::process_video, this, *i, _1, _2, _3));
- if (_video_container_size) {
- id->set_video_container_size (_video_container_size.get ());
- }
+ id->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3));
}
- 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, *i, _1, _2));
+ sd->Audio.connect (bind (&Player::process_audio, this, piece, _1, _2));
- decoder = sd;
+ piece->decoder = sd;
}
- _pieces.push_back (shared_ptr<Piece> (new Piece (*i, decoder)));
- }
-
- /* 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();
- }
-
- 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();
- }
- }
-
- 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);
+ _pieces.push_back (piece);
}
#ifdef DEBUG_PLAYER
Player::set_video_container_size (libdcp::Size s)
{
_video_container_size = s;
- for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- shared_ptr<VideoDecoder> vd = dynamic_pointer_cast<VideoDecoder> ((*i)->decoder);
- if (vd) {
- vd->set_video_container_size (s);
- }
+ _black_frame.reset (new SimpleImage (PIX_FMT_RGB24, _video_container_size, true));
+ _black_frame->make_black ();
+}
+
+shared_ptr<Resampler>
+Player::resampler (shared_ptr<AudioContent> c)
+{
+ 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