Panda3D
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00001 // Filename: movieAudioCursor.h 00002 // Created by: jyelon (02Jul07) 00003 // 00004 //////////////////////////////////////////////////////////////////// 00005 // 00006 // PANDA 3D SOFTWARE 00007 // Copyright (c) Carnegie Mellon University. All rights reserved. 00008 // 00009 // All use of this software is subject to the terms of the revised BSD 00010 // license. You should have received a copy of this license along 00011 // with this source code in a file named "LICENSE." 00012 // 00013 //////////////////////////////////////////////////////////////////// 00014 00015 #ifndef MOVIEAUDIOCURSOR_H 00016 #define MOVIEAUDIOCURSOR_H 00017 00018 #include "pandabase.h" 00019 #include "namable.h" 00020 #include "texture.h" 00021 #include "pointerTo.h" 00022 class MovieAudio; 00023 00024 //////////////////////////////////////////////////////////////////// 00025 // Class : MovieAudioCursor 00026 // Description : A MovieAudio is actually any source that provides 00027 // a sequence of audio samples. That could include an 00028 // AVI file, a microphone, or an internet TV station. 00029 // A MovieAudioCursor is a handle that lets you read 00030 // data sequentially from a MovieAudio. 00031 // 00032 // Thread safety: each individual MovieAudioCursor 00033 // must be owned and accessed by a single thread. 00034 // It is OK for two different threads to open 00035 // the same file at the same time, as long as they 00036 // use separate MovieAudioCursor objects. 00037 //////////////////////////////////////////////////////////////////// 00038 class EXPCL_PANDA_MOVIES MovieAudioCursor : public TypedWritableReferenceCount { 00039 00040 PUBLISHED: 00041 MovieAudioCursor(MovieAudio *src); 00042 virtual ~MovieAudioCursor(); 00043 INLINE PT(MovieAudio) get_source() const; 00044 INLINE int audio_rate() const; 00045 INLINE int audio_channels() const; 00046 INLINE double length() const; 00047 INLINE bool can_seek() const; 00048 INLINE bool can_seek_fast() const; 00049 INLINE double tell() const; 00050 INLINE void skip_samples(int n); 00051 INLINE bool aborted() const; 00052 virtual int ready() const; 00053 virtual void seek(double offset); 00054 void read_samples(int n, Datagram *dg); 00055 string read_samples(int n); 00056 00057 public: 00058 virtual void read_samples(int n, PN_int16 *data); 00059 00060 protected: 00061 PT(MovieAudio) _source; 00062 int _audio_rate; 00063 int _audio_channels; 00064 double _length; 00065 bool _can_seek; 00066 bool _can_seek_fast; 00067 bool _aborted; 00068 double _last_seek; 00069 PN_int64 _samples_read; 00070 00071 public: 00072 static TypeHandle get_class_type() { 00073 return _type_handle; 00074 } 00075 static void init_type() { 00076 TypedWritableReferenceCount::init_type(); 00077 register_type(_type_handle, "MovieAudioCursor", 00078 TypedWritableReferenceCount::get_class_type()); 00079 } 00080 virtual TypeHandle get_type() const { 00081 return get_class_type(); 00082 } 00083 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00084 00085 private: 00086 static TypeHandle _type_handle; 00087 }; 00088 00089 #include "movieAudioCursor.I" 00090 #include "movieAudio.h" 00091 00092 #endif