src/apps/cortex/addons/AudioAdapter/AudioAdapterNode.h

   1 /*
   2  * Copyright (c) 1999-2000, Eric Moon.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions, and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions, and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * 3. The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21  * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  26  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  27  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31
  32 // AudioAdapterNode.h
  33 #ifndef AUDIO_ADAPTER_NODE_H
  34 #define AUDIO_ADAPTER_NODE_H
  35
  36
  37 #include "AudioFilterNode.h"
  38 #include "AudioAdapterParams.h"
  39
  40
  41 class _AudioAdapterNode : public AudioFilterNode {
  42         typedef AudioFilterNode _inherited;
  43
  44         public: // ctor/dtor
  45                 virtual ~_AudioAdapterNode();
  46                 _AudioAdapterNode(const char* name, IAudioOpFactory* opFactory,
  47                         BMediaAddOn* addOn = 0);
  48
  49         public: // AudioFilterNode
  50                 status_t getRequiredInputFormat(media_format& ioFormat);
  51                 status_t getPreferredInputFormat(media_format& ioFormat);
  52                 status_t getRequiredOutputFormat(media_format& ioFormat);
  53
  54                 status_t getPreferredOutputFormat(media_format& ioFormat);
  55
  56                 status_t validateProposedInputFormat(
  57                         const media_format& preferredFormat,
  58                         media_format& ioProposedFormat);
  59
  60                 status_t validateProposedOutputFormat(
  61                         const media_format&     preferredFormat,
  62                         media_format& ioProposedFormat);
  63
  64                 virtual void SetParameterValue(int32 id, bigtime_t changeTime,
  65                         const void* value, size_t size); //nyi
  66
  67         public: // BBufferProducer/Consumer
  68                 virtual status_t Connected(const media_source&  source,
  69                         const media_destination& destination,
  70                         const media_format& format,
  71                         media_input* outInput);
  72
  73                 virtual void Connect(status_t status, const media_source& source,
  74                         const media_destination& destination,
  75                         const media_format& format,
  76                         char* ioName);
  77
  78         private:
  79                 void _attemptInputFormatChange(
  80                 const media_multi_audio_format& format); //nyi
  81
  82                 void _attemptOutputFormatChange(
  83                         const media_multi_audio_format& format); //nyi
  84
  85                 void _broadcastInputFormatParams();
  86                 void _broadcastOutputFormatParams();
  87 };
  88
  89 #endif  // AUDIO_ADAPTER_NODE_H