/* * PortMixer * Example API Implementation * * Copyright (c) 2002, 2006 * * Written by Dominic Mazzoni * and Leland Lucius * * PortMixer is intended to work side-by-side with PortAudio, * the Portable Real-Time Audio Library by Ross Bencina and * Phil Burk. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files * (the "Software"), to deal in the Software without restriction, * including without limitation the rights to use, copy, modify, merge, * publish, distribute, sublicense, and/or sell copies of the Software, * and to permit persons to whom the Software is furnished to do so, * subject to the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * Any person wishing to distribute modifications to the Software is * requested to send the modifications to the original developer so that * they can be incorporated into the canonical version. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * */ #include "portaudio.h" #include "portmixer.h" #include "px_mixer.h" typedef struct PxInfo { int example; } PxInfo; int OpenMixer_Platform_API(px_mixer *Px, int index) { PxInfo *info; if (!initialize(Px)) { return FALSE; } info = (PxInfo *) Px->info; return TRUE; } static int initialize(px_mixer *Px) { Px->info = calloc(1, sizeof(PxInfo)); if (Px->info == NULL) { return FALSE; } Px->CloseMixer = close_mixer; Px->GetNumMixers = get_num_mixers; Px->GetMixerName = get_mixer_name; Px->GetMasterVolume = get_master_volume; Px->SetMasterVolume = set_master_volume; Px->SupportsPCMOutputVolume = supports_pcm_output_volume; Px->GetPCMOutputVolume = get_pcm_output_volume; Px->SetPCMOutputVolume = set_pcm_output_volume; Px->GetNumOutputVolumes = get_num_output_volumes; Px->GetOutputVolumeName = get_output_volume_name; Px->GetOutputVolume = get_output_volume; Px->SetOutputVolume = set_output_volume; Px->GetNumInputSources = get_num_input_sources; Px->GetInputSourceName = get_input_source_name; Px->GetCurrentInputSource = get_current_input_source; Px->SetCurrentInputSource = set_current_input_source; Px->GetInputVolume = get_input_volume; Px->SetInputVolume = set_input_volume; Px->SupportsOutputBalance = supports_output_balance; Px->GetOutputBalance = get_output_balance; Px->SetOutputBalance = set_output_balance; Px->SupportsPlaythrough = supports_play_through; Px->GetPlaythrough = get_play_through; Px->SetPlaythrough = set_play_through; return TRUE; } static int cleanup(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; if (info) { free(info); Px->info = NULL; } return FALSE; } static void close_mixer(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return; } static int get_num_mixers(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return 0; } static const char *get_mixer_name(px_mixer *Px, int i) { PxInfo *info = (PxInfo *)Px->info; return NULL; } /* || Master volume */ static PxVolume get_master_volume(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return 0.0; } static void set_master_volume(px_mixer *Px, PxVolume volume) { PxInfo *info = (PxInfo *)Px->info; return; } /* || Main output volume */ static int supports_pcm_output_volume(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return FALSE; } static PxVolume get_pcm_output_volume(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return 0.0; } static void set_pcm_output_volume(px_mixer *Px, PxVolume volume) { PxInfo *info = (PxInfo *)Px->info; return; } /* || All output volumes */ static int get_num_output_volumes(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return 0; } static const char *get_output_volume_name(px_mixer *Px, int i) { PxInfo *info = (PxInfo *)Px->info; return NULL; } static PxVolume get_output_volume(px_mixer *Px, int i) { PxInfo *info = (PxInfo *)Px->info; return 0.0; } static void set_output_volume(px_mixer *Px, int i, PxVolume volume) { PxInfo *info = (PxInfo *)Px->info; return; } /* || Input source */ static int get_num_input_sources(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return 0; } static const char *get_input_source_name(px_mixer *Px, int i) { PxInfo *info = (PxInfo *)Px->info; return NULL; } static int get_current_input_source(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return -1; } static void set_current_input_source(px_mixer *Px, int i) { PxInfo *info = (PxInfo *)Px->info; return; } /* || Input volume */ static PxVolume get_input_volume(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return 0.0; } static void set_input_volume(px_mixer *Px, PxVolume volume) { PxInfo *info = (PxInfo *)Px->info; return; } /* || Balance */ static int supports_output_balance(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return FALSE; } static PxBalance get_output_balance(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return 0.0; } static void set_output_balance(px_mixer *Px, PxBalance balance) { PxInfo *info = (PxInfo *)Px->info; return; } /* || Playthrough */ static int supports_play_through(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return FALSE; } static PxVolume get_play_through(px_mixer *Px) { PxInfo *info = (PxInfo *)Px->info; return 0.0; } void set_play_through(px_mixer *Px, PxVolume volume) { PxInfo *info = (PxInfo *)Px->info; return; }