#include "imagemagick_content.h"
#include "sndfile_decoder.h"
#include "sndfile_content.h"
+#include "subtitle_content.h"
#include "playlist.h"
#include "job.h"
#include "image.h"
#include "ratio.h"
#include "resampler.h"
+#include "scaler.h"
using std::list;
using std::cout;
, _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));
+ _playlist->ContentChanged.connect (bind (&Player::content_changed, this, _1, _2, _3));
_film->Changed.connect (bind (&Player::film_changed, this, _1));
set_video_container_size (_film->container()->size (_film->full_frame ()));
}
}
#ifdef DEBUG_PLAYER
- cout << "= PASS " << this << "\n";
+ cout << "= PASS\n";
#endif
Time earliest_t = TIME_MAX;
continue;
}
- if (dynamic_pointer_cast<VideoDecoder> ((*i)->decoder)) {
+ if (_video && dynamic_pointer_cast<VideoDecoder> ((*i)->decoder)) {
if ((*i)->video_position < earliest_t) {
earliest_t = (*i)->video_position;
earliest = *i;
}
}
- if (dynamic_pointer_cast<AudioDecoder> ((*i)->decoder)) {
+ if (
_audio && dynamic_pointer_cast<AudioDecoder> ((*i)->decoder)) {
if ((*i)->audio_position < earliest_t) {
earliest_t = (*i)->audio_position;
earliest = *i;
case VIDEO:
if (earliest_t > _video_position) {
#ifdef DEBUG_PLAYER
- cout << "no video here; emitting black frame.\n";
+ cout << "no video here; emitting black frame (earliest=" << earliest_t << ", video_position=" << _video_position << ").\n";
#endif
emit_black ();
} else {
return;
}
- image = image->crop (content->crop(), true);
+ shared_ptr<Image> work_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);
+ work_image = work_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());
- }
+ Time time = content->start() + (frame * frc.factor() * TIME_HZ / _film->dcp_video_frame_rate());
+
+ if (_film->with_subtitles () && _out_subtitle.image && time >= _out_subtitle.from && time <= _out_subtitle.to) {
+ work_image->alpha_blend (_out_subtitle.image, _out_subtitle.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));
+ shared_ptr<Image> im (new Image (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;
+ im->copy (work_image, Position<int> ((_video_container_size.width - image_size.width) / 2, (_video_container_size.height - image_size.height) / 2));
+ work_image = im;
}
- Time time = content->start() + (frame * frc.factor() * TIME_HZ / _film->dcp_video_frame_rate());
-
- Video (image, same, time);
+#ifdef DCPOMATIC_DEBUG
+ _last_video = piece->content;
+#endif
+
+ Video (work_image, same, time);
time += TIME_HZ / _film->dcp_video_frame_rate();
if (frc.repeat) {
- Video (image, true, time);
+ Video (work_image, true, time);
time += TIME_HZ / _film->dcp_video_frame_rate();
}
shared_ptr<AudioContent> content = dynamic_pointer_cast<AudioContent> (piece->content);
assert (content);
+ /* Resample */
if (content->content_audio_frame_rate() != content->output_audio_frame_rate()) {
- audio = resampler(content)->run (audio);
+ shared_ptr<Resampler> r = resampler (content);
+ audio = r->run (audio);
}
/* Remap channels */
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);
+ if (i->first < audio->channels() && i->second < dcp_mapped->channels()) {
+ dcp_mapped->accumulate_channel (audio.get(), i->first, i->second);
+ }
+ }
+
+ audio = dcp_mapped;
+
+ Time time = content->start() + (frame * TIME_HZ / _film->dcp_audio_frame_rate()) + (content->audio_delay() * TIME_HZ / 1000);
+
+ /* We must cut off anything that comes before the start of all time */
+ if (time < 0) {
+ int const frames = - time * _film->dcp_audio_frame_rate() / TIME_HZ;
+ if (frames >= audio->frames ()) {
+ return;
+ }
+
+ shared_ptr<AudioBuffers> trimmed (new AudioBuffers (audio->channels(), audio->frames() - frames));
+ trimmed->copy_from (audio.get(), audio->frames() - frames, frames, 0);
+
+ audio = trimmed;
+ time = 0;
}
/* 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 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 = _film->time_to_audio_frames (time - _audio_position);
+ if (N > _audio_buffers.frames()) {
+ /* We need some extra silence before whatever is in the buffers */
+ _audio_buffers.ensure_size (N);
+ _audio_buffers.move (0, N - _audio_buffers.frames(), _audio_buffers.frames ());
+ _audio_buffers.make_silent (0, _audio_buffers.frames());
+ _audio_buffers.set_frames (N);
+ }
assert (N <= _audio_buffers.frames());
shared_ptr<AudioBuffers> emit (new AudioBuffers (_audio_buffers.channels(), N));
emit->copy_from (&_audio_buffers, N, 0, 0);
}
-/** @return true on error */
+/** Seek so that the next pass() will yield (approximately) the requested frame.
+ * Pass accurate = true to try harder to get close to the request.
+ * @return true on error
+ */
void
-Player::seek (Time t)
+Player::seek (Time t, bool accurate)
{
if (!_have_valid_pieces) {
setup_pieces ();
s = max (static_cast<Time> (0), s);
s = min (vc->length(), s);
+ (*i)->video_position = (*i)->audio_position = vc->start() + s;
+
FrameRateConversion frc (vc->video_frame_rate(), _film->dcp_video_frame_rate());
+ /* Here we are converting from time (in the DCP) to a frame number in the content.
+ Hence we need to use the DCP's frame rate and the double/skip correction, not
+ the source's rate.
+ */
VideoContent::Frame f = s * _film->dcp_video_frame_rate() / (frc.factor() * TIME_HZ);
- dynamic_pointer_cast<VideoDecoder>((*i)->decoder)->seek (f);
+ dynamic_pointer_cast<VideoDecoder>((*i)->decoder)->seek (f, accurate);
}
+ _video_position = _audio_position = t;
+
/* XXX: don't seek audio because we don't need to... */
}
-
-void
-Player::seek_back ()
-{
-
-}
-
void
Player::setup_pieces ()
{
fd->Video.connect (bind (&Player::process_video, this, piece, _1, _2, _3));
fd->Audio.connect (bind (&Player::process_audio, this, piece, _1, _2));
+ fd->Subtitle.connect (bind (&Player::process_subtitle, this, piece, _1, _2, _3, _4));
piece->decoder = fd;
}
}
void
-Player::content_changed (weak_ptr<Content> w, int p)
+Player::content_changed (weak_ptr<Content> w, int property, bool frequent)
{
shared_ptr<Content> c = w.lock ();
if (!c) {
}
if (
- p == ContentProperty::START || p == ContentProperty::LENGTH ||
- p == VideoContentProperty::VIDEO_CROP || p == VideoContentProperty::VIDEO_RATIO
+ property == ContentProperty::START || property == ContentProperty::LENGTH ||
+ property == VideoContentProperty::VIDEO_CROP || property == VideoContentProperty::VIDEO_RATIO
) {
_have_valid_pieces = false;
- Changed ();
+ Changed (frequent);
+
+ } else if (property == SubtitleContentProperty::SUBTITLE_OFFSET || property == SubtitleContentProperty::SUBTITLE_SCALE) {
+ update_subtitle ();
+ Changed (frequent);
}
}
Player::playlist_changed ()
{
_have_valid_pieces = false;
- Changed ();
+ Changed (false);
}
void
Player::set_video_container_size (libdcp::Size s)
{
_video_container_size = s;
- _black_frame.reset (new SimpleImage (PIX_FMT_RGB24, _video_container_size, true));
+ _black_frame.reset (new Image (PIX_FMT_RGB24, _video_container_size, true));
_black_frame->make_black ();
}
void
Player::emit_black ()
{
+#ifdef DCPOMATIC_DEBUG
+ _last_video.reset ();
+#endif
+
/* XXX: use same here */
Video (_black_frame, false, _video_position);
_video_position += _film->video_frames_to_time (1);
last time we were run.
*/
- if (
- p == Film::SCALER || p == Film::WITH_SUBTITLES ||
- p == Film::SUBTITLE_SCALE || p == Film::SUBTITLE_OFFSET ||
- p == Film::CONTAINER
- ) {
-
- Changed ();
+ if (p == Film::SCALER || p == Film::WITH_SUBTITLES || p == Film::CONTAINER) {
+ Changed (false);
+ }
+}
+
+void
+Player::process_subtitle (weak_ptr<Piece> weak_piece, shared_ptr<Image> image, dcpomatic::Rect<double> rect, Time from, Time to)
+{
+ _in_subtitle.piece = weak_piece;
+ _in_subtitle.image = image;
+ _in_subtitle.rect = rect;
+ _in_subtitle.from = from;
+ _in_subtitle.to = to;
+
+ update_subtitle ();
+}
+
+void
+Player::update_subtitle ()
+{
+ shared_ptr<Piece> piece = _in_subtitle.piece.lock ();
+ if (!piece) {
+ return;
}
+
+ if (!_in_subtitle.image) {
+ _out_subtitle.image.reset ();
+ return;
+ }
+
+ shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (piece->content);
+ assert (sc);
+
+ dcpomatic::Rect<double> in_rect = _in_subtitle.rect;
+ libdcp::Size scaled_size;
+
+ in_rect.y += sc->subtitle_offset ();
+
+ /* We will scale the subtitle up to fit _video_container_size, and also by the additional subtitle_scale */
+ scaled_size.width = in_rect.width * _video_container_size.width * sc->subtitle_scale ();
+ scaled_size.height = in_rect.height * _video_container_size.height * sc->subtitle_scale ();
+
+ /* Then we need a corrective translation, consisting of two parts:
+ *
+ * 1. that which is the result of the scaling of the subtitle by _video_container_size; this will be
+ * rect.x * _video_container_size.width and rect.y * _video_container_size.height.
+ *
+ * 2. that to shift the origin of the scale by subtitle_scale to the centre of the subtitle; this will be
+ * (width_before_subtitle_scale * (1 - subtitle_scale) / 2) and
+ * (height_before_subtitle_scale * (1 - subtitle_scale) / 2).
+ *
+ * Combining these two translations gives these expressions.
+ */
+
+ _out_subtitle.position.x = rint (_video_container_size.width * (in_rect.x + (in_rect.width * (1 - sc->subtitle_scale ()) / 2)));
+ _out_subtitle.position.y = rint (_video_container_size.height * (in_rect.y + (in_rect.height * (1 - sc->subtitle_scale ()) / 2)));
+
+ _out_subtitle.image = _in_subtitle.image->scale (libdcp::Size (scaled_size.width, scaled_size.height), Scaler::from_id ("bicubic"), true);
+ _out_subtitle.from = _in_subtitle.from + piece->content->start ();
+ _out_subtitle.to = _in_subtitle.to + piece->content->start ();
}
projects / dcpomatic.git / blobdiff