1 /*  This file is part of the KDE project.

     2 

     3     Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 

     5     This library is free software: you can redistribute it and/or modify

     6     it under the terms of the GNU Lesser General Public License as published by

     7     the Free Software Foundation, either version 2.1 or 3 of the License.

     8 

     9     This library is distributed in the hope that it will be useful,

    10     but WITHOUT ANY WARRANTY; without even the implied warranty of

    11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12     GNU Lesser General Public License for more details.

    13 

    14     You should have received a copy of the GNU Lesser General Public License

    15     along with this library.  If not, see <http://www.gnu.org/licenses/>.

    16 */

    17 

    18 #ifndef Phonon_QT7_QUICKTIMEAUDIOPLAYER_H

    19 #define Phonon_QT7_QUICKTIMEAUDIOPLAYER_H

    20 

    21 #include "backendheader.h"

    22 

    23 #ifdef QUICKTIME_C_API_AVAILABLE

    24     #include <QuickTime/QuickTime.h>

    25     #undef check // avoid name clash;

    26 #endif

    27 

    28 #include <phonon/mediasource.h>

    29 #include <Carbon/Carbon.h>

    30 #include <QtCore/QString>

    31 #include "audionode.h"

    32 

    33 QT_BEGIN_NAMESPACE

    34 

    35 namespace Phonon

    36 {

    37 namespace QT7

    38 {

    39     class AudioGraph;

    40     class MediaNodeEvent;

    41     class QuickTimeVideoPlayer;

    42 

    43     class QuickTimeAudioPlayer : public AudioNode

    44     {

    45         public:

    46             enum State {Playing, Paused, NoMedia, NoState};

    47 

    48             QuickTimeAudioPlayer();

    49             virtual ~QuickTimeAudioPlayer();

    50 

    51             void play();

    52             void pause();

    53             void seek(quint64 milliseconds);

    54             void enableAudio(bool enable);

    55 	        bool audioEnabled();

    56             void flush();

    57 

    58             void setVideoPlayer(QuickTimeVideoPlayer *videoPlayer);

    59             void unsetVideoPlayer();

    60 

    61             bool hasAudio();

    62             bool isPlaying();

    63             void scheduleAudioToGraph();

    64             long regularTaskFrequency();

    65             quint64 currentTime();

    66             QString currentTimeString();

    67             QuickTimeVideoPlayer *videoPlayer();

    68 

    69             ComponentDescription getAudioNodeDescription() const;

    70             void initializeAudioUnit();

    71             bool fillInStreamSpecification(AudioConnection *connection, ConnectionSide side);

    72             void mediaNodeEvent(const MediaNodeEvent *event);

    73 

    74             static bool soundPlayerIsAwailable();

    75 

    76         private:

    77             void initSoundExtraction();

    78             void newGraphNotification();

    79             void allocateSoundSlices();

    80             void scheduleSoundSlices();

    81 

    82             State m_state;

    83             QuickTimeVideoPlayer *m_videoPlayer;

    84 

    85 #ifdef QUICKTIME_C_API_AVAILABLE

    86             MovieAudioExtractionRef m_audioExtractionRef;

    87 #endif

    88 

    89             ScheduledAudioSlice *m_sliceList;

    90             AudioChannelLayout *m_audioChannelLayout;

    91             UInt32 m_audioChannelLayoutSize;

    92             AudioStreamBasicDescription m_audioStreamDescription;

    93 

    94             bool m_discrete;

    95             bool m_playerUnitStarted;

    96             bool m_audioExtractionComplete;

    97             bool m_audioEnabled;

    98             bool m_audioUnitIsReset;

    99 

   100             long m_samplesRemaining;

   101             int m_sliceCount;

   102             int m_maxExtractionPacketCount;

   103 

   104             Float64 m_sampleTimeStamp;

   105             quint64 m_startTime;

   106     };

   107 

   108 }} // namespace Phonon::QT7

   109 

   110 QT_END_NAMESPACE

   111 

   112 #endif // Phonon_QT7_QUICKTIMEAUDIOPLAYER_H