/[svn]/linuxsampler/trunk/src/drivers/audio/AudioChannel.h
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revision 1000 by schoenebeck, Tue Jun 27 22:57:37 2006 UTC revision 1001 by schoenebeck, Wed Dec 27 16:17:08 2006 UTC
# Line 37  namespace LinuxSampler { Line 37  namespace LinuxSampler {
37       *       *
38       * This class is used for routing audio signals between arbitrary sources       * This class is used for routing audio signals between arbitrary sources
39       * and destinations. You can either create a normal channel like:       * and destinations. You can either create a normal channel like:
40       *       * @code
41       *  AudioChannel c1(512); // create unnamed channel       *  AudioChannel c1(512); // create unnamed channel
42       *  AudioChannel c2(512, "Effect send mono channel"); // create named channel       *  AudioChannel c2(512, "Effect send mono channel"); // create named channel
43       *       * @endcode
44       * Or you can create a mix channel, e.g. the following would create a       * Or you can create a mix channel, e.g. the following would create a
45       * normal channel first, and the second channel is just a copy of the       * normal channel first, and the second channel is just a copy of the
46       * first channel:       * first channel:
47       *       * @code
48       *  AudioChannel mono_chan(512, "Effect send channel"); // real channel       *  AudioChannel mono_chan(512, "Effect send channel"); // real channel
49       *  AudioChannel mix_chan(&mono_chan, "Effect send mono channel"); // mix channel       *  AudioChannel mix_chan(&mono_chan, "Effect send mono channel"); // mix channel
50       *       * @endcode
51       * So in the last example, when writing to 'mix_chan' the signal will       * So in the last example, when writing to 'mix_chan' the signal will
52       * actually be mixed to the 'mono_chan' channel, so this is an easy way       * actually be mixed to the 'mono_chan' channel, so this is an easy way
53       * to downmix a signal source which has more audio channels than the       * to downmix a signal source which has more audio channels than the
# Line 90  namespace LinuxSampler { Line 90  namespace LinuxSampler {
90              inline float*        Buffer()     { return pBuffer;      } ///< Audio signal buffer              inline float*        Buffer()     { return pBuffer;      } ///< Audio signal buffer
91              inline AudioChannel* MixChannel() { return pMixChannel;  } ///< In case this channel is a mix channel, then it will return a pointer to the real channel this channel refers to, NULL otherwise.              inline AudioChannel* MixChannel() { return pMixChannel;  } ///< In case this channel is a mix channel, then it will return a pointer to the real channel this channel refers to, NULL otherwise.
92              inline void          Clear()      { memset(pBuffer, 0, uiBufferSize * sizeof(float)); } ///< Reset audio buffer with silence              inline void          Clear()      { memset(pBuffer, 0, uiBufferSize * sizeof(float)); } ///< Reset audio buffer with silence
93                void CopyTo(AudioChannel* pDst, const uint Samples);
94                void CopyTo(AudioChannel* pDst, const uint Samples, const float fLevel);
95              std::map<String,DeviceRuntimeParameter*> ChannelParameters();              std::map<String,DeviceRuntimeParameter*> ChannelParameters();
96    
97              // constructors / destructor              // constructors / destructor
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