// AudioAdapterParams.cpp #include "AudioAdapterParams.h" #include #include status_t _AudioAdapterParams::store(int32 parameterID, const void* data, size_t size) { if (size < sizeof(int32)) return B_NO_MEMORY; const uint32 d = *(uint32*)data; switch (parameterID) { // input format restrictions (0='wildcard') case P_INPUT_FORMAT: inputFormat.format = d; break; case P_INPUT_CHANNEL_COUNT: inputFormat.channel_count = d; break; // output format restrictions (0='wildcard') case P_OUTPUT_FORMAT: outputFormat.format = d; break; case P_OUTPUT_CHANNEL_COUNT: outputFormat.channel_count = d; break; default: return B_BAD_INDEX; } return B_OK; } status_t _AudioAdapterParams::retrieve( int32 parameterID, void* data, size_t* ioSize) { if(*ioSize < sizeof(int32)) { *ioSize = sizeof(int32); return B_NO_MEMORY; } switch(parameterID) { // input format restrictions (0='wildcard') case P_INPUT_FORMAT: *(uint32*)data = inputFormat.format; break; case P_INPUT_CHANNEL_COUNT: *(uint32*)data = inputFormat.channel_count; break; // output format restrictions (0='wildcard') case P_OUTPUT_FORMAT: *(uint32*)data = outputFormat.format; PRINT(("P_OUTPUT_FORMAT retrieved\n")); //+++++ break; case P_OUTPUT_CHANNEL_COUNT: *(uint32*)data = outputFormat.channel_count; break; default: return B_BAD_INDEX; } return B_OK; } void _AudioAdapterParams::populateGroup( BParameterGroup* group) { BParameterGroup* inputGroup = group->MakeGroup("Input Format"); BNullParameter* groupName; BDiscreteParameter* param; groupName = inputGroup->MakeNullParameter( 0, B_MEDIA_NO_TYPE, "Input Format", B_GENERIC); param = inputGroup->MakeDiscreteParameter( P_INPUT_FORMAT, B_MEDIA_NO_TYPE, "Sample format:", B_GENERIC); param->AddItem( 0, "*"); param->AddItem( media_multi_audio_format::B_AUDIO_FLOAT, "float"); param->AddItem( media_multi_audio_format::B_AUDIO_SHORT, "short"); param->AddItem( media_multi_audio_format::B_AUDIO_INT, "int32"); param->AddItem( media_multi_audio_format::B_AUDIO_UCHAR, "uint8"); param = inputGroup->MakeDiscreteParameter( P_INPUT_CHANNEL_COUNT, B_MEDIA_NO_TYPE, "Channels:", B_GENERIC); param->AddItem( 0, "*"); param->AddItem( 1, "mono"); param->AddItem( 2, "stereo"); param->AddItem( 4, "4"); param->AddItem( 8, "8"); BParameterGroup* outputGroup = group->MakeGroup("Output Format"); groupName = outputGroup->MakeNullParameter( 0, B_MEDIA_NO_TYPE, "Output Format", B_GENERIC); param = outputGroup->MakeDiscreteParameter( P_OUTPUT_FORMAT, B_MEDIA_NO_TYPE, "Sample format:", B_GENERIC); param->AddItem( 0, "*"); param->AddItem( media_multi_audio_format::B_AUDIO_FLOAT, "float"); param->AddItem( media_multi_audio_format::B_AUDIO_SHORT, "short"); param->AddItem( media_multi_audio_format::B_AUDIO_INT, "int32"); param->AddItem( media_multi_audio_format::B_AUDIO_UCHAR, "uint8"); param = outputGroup->MakeDiscreteParameter( P_OUTPUT_CHANNEL_COUNT, B_MEDIA_NO_TYPE, "Channels:", B_GENERIC); param->AddItem( 0, "*"); param->AddItem( 1, "mono"); param->AddItem( 2, "stereo"); param->AddItem( 4, "4"); param->AddItem( 8, "8"); } // END -- AudioAdapterParams.cpp