quicktime.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */
 
//
// Heavily based on ffmpeg code.
//
// Copyright (c) 2001 Fabrice Bellard.
// First version by Francois Revol revol@free.fr
// Seek function by Gael Chardon gael.dev@4now.net
//
 
#ifndef COMMON_QUICKTIME_H
#define COMMON_QUICKTIME_H
 
#include "common/array.h"
#include "common/scummsys.h"
#include "common/path.h"
#include "common/stream.h"
#include "common/rational.h"
#include "common/types.h"
#include "common/rect.h"
 
namespace Common {
    class MacResManager;
 
class QuickTimeParser {
public:
    QuickTimeParser();
    virtual ~QuickTimeParser();
 
    bool parseFile(const Path &filename);
 
    bool parseStream(SeekableReadStream *stream, DisposeAfterUse::Flag disposeFileHandle = DisposeAfterUse::YES);
 
    void close();
 
    void flattenEditLists();
 
    void setChunkBeginOffset(uint32 offset) { _beginOffset = offset; }
 
    uint32 getTimeScale() const { return _timeScale; }
 
    bool isOpen() const { return _fd != nullptr; }
 
    enum class QTVRType {
        OTHER,
        OBJECT,
        PANORAMA
    };
 
protected:
    // This is the file handle from which data is read from. It can be the actual file handle or a decompressed stream.
    SeekableReadStream *_fd;
 
    struct TimeToSampleEntry {
        int count;
        int duration; // media time
    };
 
    struct SampleToChunkEntry {
        uint32 first;
        uint32 count;
        uint32 id;
    };
 
    struct EditListEntry {
        uint32 trackDuration; // movie time
        uint32 timeOffset;    // movie time
        int32 mediaTime;      // media time
        Rational mediaRate;
    };
 
public:
    struct Track;
 
protected:
    class SampleDesc {
    public:
        SampleDesc(Track *parentTrack, uint32 codecTag);
        virtual ~SampleDesc();
 
        uint32 getCodecTag() const { return _codecTag; }
 
        SeekableReadStream *_extraData;
        byte _objectTypeMP4;
 
    protected:
        Track *_parentTrack;
        uint32 _codecTag;
    };
 
public:
    enum CodecType {
        CODEC_TYPE_MOV_OTHER,
        CODEC_TYPE_VIDEO,
        CODEC_TYPE_AUDIO,
        CODEC_TYPE_MIDI,
        CODEC_TYPE_PANO
    };
 
    enum class GraphicsMode {
        COPY                 = 0x0,   // Directly copy the source image over the destination.
        DITHER_COPY          = 0x40,  // Dither the image (if needed), otherwise copy.
        BLEND                = 0x20,  // Blend source and destination pixel colors using opcolor values.
        TRANSPARENT          = 0x24,  // Replace destination with source if not equal to opcolor.
        STRAIGHT_ALPHA       = 0x100, // Blend source and destination pixels, with the proportion controlled by the alpha channel.
        PREMUL_WHITE_ALPHA   = 0x101, // Blend after removing pre-multiplied white from the source.
        PREMUL_BLACK_ALPHA   = 0x102, // Blend after removing pre-multiplied black from the source.
        STRAIGHT_ALPHA_BLEND = 0x104, // Similar to straight alpha, but the alpha for each channel is combined with the corresponding opcolor channel.
        COMPOSITION          = 0x103  // Render offscreen and then dither-copy to the main screen (tracks only).
    };
 
    struct PanoramaNode {
        uint32 nodeID = 0;
        uint32 timestamp = 0;
    };
 
    struct PanoramaInformation {
        String name;
        uint32 defNodeID = 0;
        float defZoom = 0.0f;
        Array<PanoramaNode> nodes;
    };
 
    struct PanoSampleHeader {
        uint32 nodeID;
 
        float defHPan;
        float defVPan;
        float defZoom;
 
        // Constraints for this node; zero for default
        float minHPan;
        float minVPan;
        float maxHPan;
        float maxVPan;
        float minZoom;
        float maxZoom;
 
        int32 nameStrOffset;
        int32 commentStrOffset;
    };
 
    struct PanoHotSpot {
        uint16 id;
        uint32 type;
        uint32 typeData; // for link and navg, the ID in the link and navg table
 
        // Canonical view for this hotspot
        float viewHPan;
        float viewVPan;
        float viewZoom;
 
        Rect rect;
 
        int32 mouseOverCursorID;
        int32 mouseDownCursorID;
        int32 mouseUpCursorID;
 
        int32 nameStrOffset;
        int32 commentStrOffset;
    };
 
    struct PanoHotSpotTable {
        Array<PanoHotSpot> hotSpots;
 
        PanoHotSpot *get(uint16 id) {
            for (uint i = 0; i < hotSpots.size(); i++)
                if (hotSpots[i].id == id)
                    return &hotSpots[i];
 
            return nullptr;
        }
    };
 
    struct PanoStringTable {
        String strings;
 
        String getString(int32 offset) const;
        void debugPrint(int level, uint32 debugChannel, String prefix) const;
    };
 
    struct PanoLink {
        uint16 id;
        uint16 toNodeID;
 
        // Values to set at the destination node
        float toHPan;
        float toVPan;
        float toZoom;
 
        int32 nameStrOffset;
        int32 commentStrOffset;
    };
 
    struct PanoLinkTable {
        Array<PanoLink> links;
 
        PanoLink *get(uint16 id) {
            for (uint i = 0; i < links.size(); i++)
                if (links[i].id == id)
                    return &links[i];
 
            return nullptr;
        }
    };
 
    struct PanoNavigation {
        uint16 id;
 
        // Info for Navigable Movie Controller
        float navgHPan; // the object's orientation in the scene
        float navgVPan;
        float navgZoom;
 
        Rect zoomRect; // Starting rect for zoom out transitions
 
        // Values to set at the destination node
        int32 nameStrOffset;
        int32 commentStrOffset;
    };
 
    struct PanoNavigationTable {
        Array<PanoNavigation> navs;
 
        PanoNavigation *get(uint16 id) {
            for (uint i = 0; i < navs.size(); i++)
                if (navs[i].id == id)
                    return &navs[i];
 
            return nullptr;
        }
    };
 
    struct PanoTrackSample {
        PanoSampleHeader hdr;
        PanoHotSpotTable hotSpotTable;
        PanoStringTable strTable;
        PanoLinkTable linkTable;
        PanoNavigationTable navTable;
    };
 
    struct Track {
        Track();
        ~Track();
 
        uint32 chunkCount;
        uint32 *chunkOffsets;
        int timeToSampleCount;
        TimeToSampleEntry *timeToSample;
        uint32 sampleToChunkCount;
        SampleToChunkEntry *sampleToChunk;
        uint32 sampleSize;
        uint32 sampleCount;
        uint32 *sampleSizes;
        uint32 keyframeCount;
        uint32 *keyframes;
        int32 timeScale; // media time
 
        uint16 width;
        uint16 height;
        CodecType codecType;
 
        Array<SampleDesc *> sampleDescs;
 
        Common::Array<EditListEntry> editList;
 
        uint32 frameCount;    // from stts
        uint32 duration;      // movie time
        uint32 mediaDuration; // media time
        Rational scaleFactorX;
        Rational scaleFactorY;
 
        Common::String volume;
        Common::String filename;
        Common::String path;
        Common::String directory;
        int16 nlvlFrom;
        int16 nlvlTo;
 
        PanoramaInformation panoInfo;
        Array<PanoTrackSample> panoSamples;
 
        GraphicsMode graphicsMode; // Transfer mode
        uint16 opcolor[3];         // RGB values used in the transfer mode specified by graphicsMode.
 
        uint16 soundBalance; // Controls the sound mix between the computer's two speakers, usually set to 0.
 
        uint targetTrack;
    };
 
    enum class MovieType {
        kStandardObject = 1,
        kOldNavigableMovieScene,
        kObjectInScene
    };
 
    struct Navigation {
        uint16 columns = 1;
        uint16 rows = 1;
        uint16 loop_size = 0;      // Number of frames shot at each position
        uint16 frame_duration = 1;
 
        MovieType movie_type = MovieType::kStandardObject;
 
        uint16 loop_ticks = 0;   // Number of ticks before next frame of loop is displayed
 
        float field_of_view = 1.0f;
 
        float startHPan = 1.0f;
        float startVPan = 1.0f;
        float endHPan = 1.0f;
        float endVPan = 1.0f;
        float initialHPan = 1.0f;
        float initialVPan = 1.0f;
    };
 
protected:
    virtual SampleDesc *readSampleDesc(Track *track, uint32 format, uint32 descSize) = 0;
 
    uint32 _timeScale;      // movie time
    uint32 _duration;       // movie time
    Rational _scaleFactorX;
    Rational _scaleFactorY;
    Array<Track *> _tracks;
    Navigation _nav;
    QTVRType _qtvrType;
    uint16 _winX;
    uint16 _winY;
 
    Track *_panoTrack;
 
    void init();
 
private:
    struct Atom {
        uint32 type;
        uint32 offset;
        uint32 size;
    };
 
    struct ParseTable {
        int (QuickTimeParser::*func)(Atom atom);
        uint32 type;
    };
 
    DisposeAfterUse::Flag _disposeFileHandle;
    const ParseTable *_parseTable;
    uint32 _beginOffset;
    MacResManager *_resFork;
    bool _foundMOOV;
 
    void initParseTable();
 
    bool parsePanoramaAtoms();
 
    int readDefault(Atom atom);
    int readLeaf(Atom atom);
    int readDREF(Atom atom);
    int readELST(Atom atom);
    int readHDLR(Atom atom);
    int readMDHD(Atom atom);
    int readMOOV(Atom atom);
    int readMVHD(Atom atom);
    int readTKHD(Atom atom);
    int readTRAK(Atom atom);
    int readSMHD(Atom atom);
    int readSTCO(Atom atom);
    int readSTSC(Atom atom);
    int readSTSD(Atom atom);
    int readSTSS(Atom atom);
    int readSTSZ(Atom atom);
    int readSTTS(Atom atom);
    int readVMHD(Atom atom);
    int readCMOV(Atom atom);
    int readWAVE(Atom atom);
    int readESDS(Atom atom);
    int readSMI(Atom atom);
    int readCTYP(Atom atom);
    int readWLOC(Atom atom);
    int readNAVG(Atom atom);
    int readGMIN(Atom atom);
    int readPINF(Atom atom);
 
    int readPHDR(Atom atom);
    int readPHOT(Atom atom);
    int readSTRT(Atom atom);
    int readPLNK(Atom atom);
    int readPNAV(Atom atom);
};
 
} // End of namespace Common
 
#endif