mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-15 06:08:35 +00:00
99 lines
2.8 KiB
C++
99 lines
2.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
|
|
*
|
|
* ScummVM is the legal property of its developers, whose names
|
|
* are too numerous to list here. Please refer to the COPYRIGHT
|
|
* file distributed with this source distribution.
|
|
*
|
|
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
* $URL$
|
|
* $Id$
|
|
*
|
|
*/
|
|
|
|
#include "groovie/groovie.h"
|
|
#include "groovie/player.h"
|
|
|
|
namespace Groovie {
|
|
|
|
VideoPlayer::VideoPlayer(GroovieEngine *vm) :
|
|
_vm(vm), _syst(vm->_system), _file(NULL), _audioStream(NULL) {
|
|
}
|
|
|
|
bool VideoPlayer::load(Common::SeekableReadStream *file, uint16 flags) {
|
|
_file = file;
|
|
_flags = flags;
|
|
_audioStream = NULL;
|
|
|
|
uint16 fps = loadInternal();
|
|
|
|
if (fps != 0) {
|
|
_millisBetweenFrames = 1000 / fps;
|
|
_begunPlaying = false;
|
|
return true;
|
|
} else {
|
|
_file = NULL;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool VideoPlayer::playFrame() {
|
|
bool end = true;
|
|
|
|
// Process the next frame while the file is open
|
|
if (_file) {
|
|
end = playFrameInternal();
|
|
}
|
|
|
|
// The file has been completely processed
|
|
if (end) {
|
|
_file = NULL;
|
|
|
|
// Wait for pending audio
|
|
if (_audioStream) {
|
|
if (_audioStream->endOfData()) {
|
|
// Mark the audio stream as finished (no more data will be appended)
|
|
_audioStream->finish();
|
|
} else {
|
|
// Don't end if there's still audio playing
|
|
end = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
return end;
|
|
}
|
|
|
|
void VideoPlayer::waitFrame() {
|
|
uint32 currTime = _syst->getMillis();
|
|
if (!_begunPlaying) {
|
|
_begunPlaying = true;
|
|
_lastFrameTime = currTime;
|
|
} else {
|
|
uint32 millisDiff = currTime - _lastFrameTime;
|
|
if (millisDiff < _millisBetweenFrames) {
|
|
debugC(7, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::Player: Delaying %d (currTime=%d, _lastFrameTime=%d, millisDiff=%d, _millisBetweenFrame=%d)",
|
|
_millisBetweenFrames - millisDiff, currTime, _lastFrameTime, millisDiff, _millisBetweenFrames);
|
|
_syst->delayMillis(_millisBetweenFrames - millisDiff);
|
|
currTime = _syst->getMillis();
|
|
debugC(7, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::Player: Finished delay at %d", currTime);
|
|
}
|
|
debugC(6, kGroovieDebugVideo | kGroovieDebugAll, "Groovie::Player: Frame displayed at %d (%f FPS)", currTime, 1000.0 / (currTime - _lastFrameTime));
|
|
_lastFrameTime = currTime;
|
|
}
|
|
}
|
|
|
|
} // End of Groovie namespace
|