1 files changed, 280 insertions, 0 deletions
diff --git a/src/lib/player.cc b/src/lib/player.cc
new file mode 100644
index 000000000..6e2e7ed14
--- /dev/null
+++ b/src/lib/player.cc
@@ -0,0 +1,280 @@
+/*
+    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "player.h"
+#include "film.h"
+#include "ffmpeg_decoder.h"
+#include "imagemagick_decoder.h"
+#include "sndfile_decoder.h"
+#include "playlist.h"
+#include "job.h"
+
+using std::list;
+using boost::shared_ptr;
+
+Player::Player (shared_ptr<const Film> f, shared_ptr<const Playlist> p)
+	: _film (f)
+	, _playlist (p)
+	, _video (true)
+	, _audio (true)
+	, _subtitles (true)
+	, _have_setup_decoders (false)
+	, _ffmpeg_decoder_done (false)
+	, _video_sync (true)
+{
+
+}
+
+void
+Player::disable_video ()
+{
+	_video = false;
+}
+
+void
+Player::disable_audio ()
+{
+	_audio = false;
+}
+
+void
+Player::disable_subtitles ()
+{
+	_subtitles = false;
+}
+
+bool
+Player::pass ()
+{
+	if (!_have_setup_decoders) {
+		setup_decoders ();
+		_have_setup_decoders = true;
+	}
+	
+	bool done = true;
+	
+	if (_playlist->video_from() == Playlist::VIDEO_FFMPEG || _playlist->audio_from() == Playlist::AUDIO_FFMPEG) {
+		if (!_ffmpeg_decoder_done) {
+			if (_ffmpeg_decoder->pass ()) {
+				_ffmpeg_decoder_done = true;
+			} else {
+				done = false;
+			}
+		}
+	}
+
+	if (_playlist->video_from() == Playlist::VIDEO_IMAGEMAGICK) {
+		if (_imagemagick_decoder != _imagemagick_decoders.end ()) {
+			if ((*_imagemagick_decoder)->pass ()) {
+				_imagemagick_decoder++;
+			}
+
+			if (_imagemagick_decoder != _imagemagick_decoders.end ()) {
+				done = false;
+			}
+		}
+	}
+
+	/* XXX: sndfile */
+
+	return done;
+}
+
+void
+Player::set_progress (shared_ptr<Job> job)
+{
+	/* Assume progress can be divined from how far through the video we are */
+	switch (_playlist->video_from ()) {
+	case Playlist::VIDEO_NONE:
+		break;
+	case Playlist::VIDEO_FFMPEG:
+		if (_playlist->video_length ()) {
+			job->set_progress (float(_ffmpeg_decoder->video_frame()) / _playlist->video_length ());
+		}
+		break;
+	case Playlist::VIDEO_IMAGEMAGICK:
+	{
+		int n = 0;
+		for (list<shared_ptr<ImageMagickDecoder> >::iterator i = _imagemagick_decoders.begin(); i != _imagemagick_decoders.end(); ++i) {
+			if (_imagemagick_decoder == i) {
+				job->set_progress (float (n) / _imagemagick_decoders.size ());
+			}
+			++n;
+		}
+		break;
+	}
+	}
+}
+
+void
+Player::process_video (shared_ptr<Image> i, bool same, shared_ptr<Subtitle> s)
+{
+	Video (i, same, s);
+}
+
+void
+Player::process_audio (shared_ptr<AudioBuffers> b)
+{
+	Audio (b);
+}
+
+/** @return true on error */
+bool
+Player::seek (double t)
+{
+	if (!_have_setup_decoders) {
+		setup_decoders ();
+		_have_setup_decoders = true;
+	}
+	
+	bool r = false;
+
+	switch (_playlist->video_from()) {
+	case Playlist::VIDEO_NONE:
+		break;
+	case Playlist::VIDEO_FFMPEG:
+		if (!_ffmpeg_decoder || _ffmpeg_decoder->seek (t)) {
+			r = true;
+		}
+		/* We're seeking, so all `all done' bets are off */
+		_ffmpeg_decoder_done = false;
+		break;
+	case Playlist::VIDEO_IMAGEMAGICK:
+		/* Find the decoder that contains this position */
+		_imagemagick_decoder = _imagemagick_decoders.begin ();
+		while (_imagemagick_decoder != _imagemagick_decoders.end ()) {
+			double const this_length = (*_imagemagick_decoder)->video_length() / _film->video_frame_rate ();
+			if (t < this_length) {
+				break;
+			}
+			t -= this_length;
+			++_imagemagick_decoder;
+		}
+
+		if (_imagemagick_decoder != _imagemagick_decoders.end()) {
+			(*_imagemagick_decoder)->seek (t);
+		} else {
+			r = true;
+		}
+		break;
+	}
+
+	/* XXX: don't seek audio because we don't need to... */
+
+	return r;
+}
+
+bool
+Player::seek_to_last ()
+{
+	if (!_have_setup_decoders) {
+		setup_decoders ();
+		_have_setup_decoders = true;
+	}
+
+	bool r = false;
+	
+	switch (_playlist->video_from ()) {
+	case Playlist::VIDEO_NONE:
+		break;
+	case Playlist::VIDEO_FFMPEG:
+		if (!_ffmpeg_decoder || _ffmpeg_decoder->seek_to_last ()) {
+			r = true;
+		}
+
+		/* We're seeking, so all `all done' bets are off */
+		_ffmpeg_decoder_done = false;
+		break;
+	case Playlist::VIDEO_IMAGEMAGICK:
+		if ((*_imagemagick_decoder)->seek_to_last ()) {
+			r = true;
+		}
+		break;
+	}
+
+	/* XXX: don't seek audio because we don't need to... */
+
+	return r;
+}
+
+void
+Player::setup_decoders ()
+{
+	if ((_video && _playlist->video_from() == Playlist::VIDEO_FFMPEG) || (_audio && _playlist->audio_from() == Playlist::AUDIO_FFMPEG)) {
+		_ffmpeg_decoder.reset (
+			new FFmpegDecoder (
+				_film,
+				_playlist->ffmpeg(),
+				_video && _playlist->video_from() == Playlist::VIDEO_FFMPEG,
+				_audio && _playlist->audio_from() == Playlist::AUDIO_FFMPEG,
+				_subtitles && _film->with_subtitles(),
+				_video_sync
+				)
+			);
+	}
+	
+	if (_video && _playlist->video_from() == Playlist::VIDEO_FFMPEG) {
+		_ffmpeg_decoder->connect_video (shared_from_this ());
+	}
+
+	if (_audio && _playlist->audio_from() == Playlist::AUDIO_FFMPEG) {
+		_ffmpeg_decoder->connect_audio (shared_from_this ());
+	}
+
+	if (_video && _playlist->video_from() == Playlist::VIDEO_IMAGEMAGICK) {
+		list<shared_ptr<const ImageMagickContent> > ic = _playlist->imagemagick ();
+		for (list<shared_ptr<const ImageMagickContent> >::iterator i = ic.begin(); i != ic.end(); ++i) {
+			shared_ptr<ImageMagickDecoder> d (new ImageMagickDecoder (_film, *i));
+			_imagemagick_decoders.push_back (d);
+			d->connect_video (shared_from_this ());
+		}
+
+		_imagemagick_decoder = _imagemagick_decoders.begin ();
+	}
+
+	if (_audio && _playlist->audio_from() == Playlist::AUDIO_SNDFILE) {
+		list<shared_ptr<const SndfileContent> > sc = _playlist->sndfile ();
+		for (list<shared_ptr<const SndfileContent> >::iterator i = sc.begin(); i != sc.end(); ++i) {
+			shared_ptr<SndfileDecoder> d (new SndfileDecoder (_film, *i));
+			_sndfile_decoders.push_back (d);
+			d->connect_audio (shared_from_this ());
+		}
+	}
+}
+
+void
+Player::disable_video_sync ()
+{
+	_video_sync = false;
+}
+
+double
+Player::last_video_time () const
+{
+	switch (_playlist->video_from ()) {
+	case Playlist::VIDEO_NONE:
+		return 0;
+	case Playlist::VIDEO_FFMPEG:
+		return _ffmpeg_decoder->last_source_time ();
+	case Playlist::VIDEO_IMAGEMAGICK:
+		return (*_imagemagick_decoder)->last_source_time ();
+	}
+
+	return 0;
+}