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https://github.com/libretro/scummvm.git
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136 lines
3.8 KiB
C++
136 lines
3.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef SHERLOCK_SCALPEL_3DO_MOVIE_DECODER_H
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#define SHERLOCK_SCALPEL_3DO_MOVIE_DECODER_H
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#include "common/rect.h"
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#include "video/video_decoder.h"
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#include "audio/decoders/3do.h"
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namespace Audio {
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class QueuingAudioStream;
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}
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namespace Common {
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class SeekableReadStream;
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}
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namespace Image {
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class Codec;
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}
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namespace Video {
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/**
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* Decoder for 3DO videos.
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*
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* Video decoder used in engines:
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* - sherlock
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* - plumbers
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*/
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class ThreeDOMovieDecoder : public Video::VideoDecoder {
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public:
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ThreeDOMovieDecoder();
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~ThreeDOMovieDecoder() override;
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bool loadStream(Common::SeekableReadStream *stream) override;
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void close() override;
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protected:
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void readNextPacket() override;
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bool supportsAudioTrackSwitching() const override { return true; }
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AudioTrack *getAudioTrack(int index) override;
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private:
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int32 _streamVideoOffset; /* current stream offset for video decoding */
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int32 _streamAudioOffset; /* current stream offset for audio decoding */
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private:
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class StreamVideoTrack : public VideoTrack {
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public:
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StreamVideoTrack(uint32 width, uint32 height, uint32 codecTag, uint32 frameCount);
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~StreamVideoTrack() override;
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bool endOfTrack() const override;
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uint16 getWidth() const override { return _width; }
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uint16 getHeight() const override { return _height; }
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Graphics::PixelFormat getPixelFormat() const override;
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int getCurFrame() const override { return _curFrame; }
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int getFrameCount() const override { return _frameCount; }
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void setNextFrameStartTime(uint32 nextFrameStartTime) { _nextFrameStartTime = nextFrameStartTime; }
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uint32 getNextFrameStartTime() const override { return _nextFrameStartTime; }
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const Graphics::Surface *decodeNextFrame() override { return _surface; }
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void decodeFrame(Common::SeekableReadStream *stream, uint32 videoTimeStamp);
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private:
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const Graphics::Surface *_surface;
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int _curFrame;
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uint32 _frameCount;
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uint32 _nextFrameStartTime;
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Image::Codec *_codec;
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uint16 _width, _height;
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};
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class StreamAudioTrack : public AudioTrack {
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public:
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StreamAudioTrack(uint32 codecTag, uint32 sampleRate, uint32 channels, Audio::Mixer::SoundType soundType, uint32 trackId);
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~StreamAudioTrack() override;
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void queueAudio(Common::SeekableReadStream *stream, uint32 size);
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bool matchesId(uint trackId);
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protected:
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Audio::AudioStream *getAudioStream() const override;
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private:
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Audio::QueuingAudioStream *_audioStream;
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uint32 _totalAudioQueued; /* total amount of milliseconds of audio, that we queued up already */
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public:
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uint32 getTotalAudioQueued() const { return _totalAudioQueued; }
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private:
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int16 decodeSample(uint8 dataNibble);
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uint32 _codecTag;
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uint16 _sampleRate;
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bool _stereo;
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uint32 _trackId;
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Audio::audio_3DO_ADP4_PersistentSpace _ADP4_PersistentSpace;
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Audio::audio_3DO_SDX2_PersistentSpace _SDX2_PersistentSpace;
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};
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Common::SeekableReadStream *_stream;
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StreamVideoTrack *_videoTrack;
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Common::Array<StreamAudioTrack *> _audioTracks;
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};
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} // End of namespace Sherlock
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#endif
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