src/cpp/CPulseStreamSpec.cpp

   1 /*
   2  * Copyright (c) 2015 Samsung Electronics Co., Ltd All Rights Reserved
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17
  18 #include "CAudioIODef.h"
  19
  20
  21 using namespace std;
  22 using namespace tizen_media_audio;
  23
  24
  25 static const char* STREAM_NAME_INPUT               = "CAPTURE";
  26 static const char* STREAM_NAME_INPUT_LOW_LATENCY   = "LOW LATENCY CAPTURE";
  27 static const char* STREAM_NAME_INPUT_HIGH_LATENCY  = "HIGH LATENCY CAPTURE";
  28 static const char* STREAM_NAME_INPUT_VOIP          = "VOIP CAPTURE";
  29
  30 static const char* STREAM_NAME_OUTPUT              = "PLAYBACK";
  31 static const char* STREAM_NAME_OUTPUT_LOW_LATENCY  = "LOW LATENCY PLAYBACK";
  32 static const char* STREAM_NAME_OUTPUT_HIGH_LATENCY = "HIGH LATENCY PLAYBACK";
  33 static const char* STREAM_NAME_OUTPUT_VOIP         = "VOIP PLAYBACK";
  34
  35
  36 CPulseStreamSpec::CPulseStreamSpec() throw (CAudioError)
  37         : mLatency(STREAM_LATENCY_INPUT_MID), mStreamName(NULL) {
  38     _adjustSpec();
  39 }
  40
  41 CPulseStreamSpec::CPulseStreamSpec(EStreamLatency latency, CAudioInfo& audioInfo) throw (CAudioError)
  42         : mLatency(latency), mAudioInfo(audioInfo), mStreamName(NULL) {
  43     _adjustSpec();
  44 }
  45
  46 CPulseStreamSpec::CPulseStreamSpec(EStreamLatency latency, CAudioInfo& audioInfo, int customLatency) throw (CAudioError)
  47         : mLatency(latency), mAudioInfo(audioInfo), mStreamName(NULL) {
  48     _adjustSpec();
  49 }
  50
  51 CPulseStreamSpec::~CPulseStreamSpec() {
  52 }
  53
  54 void CPulseStreamSpec::_adjustSpec() throw (CAudioError) {
  55     // Sets a sampleRate
  56     mSampleSpec.rate = mAudioInfo.getSampleRate();
  57
  58     // Convert channels for PA
  59     switch (mAudioInfo.getChannel()) {
  60     case CAudioInfo::CHANNEL_MONO:
  61         mSampleSpec.channels = 1;
  62         break;
  63
  64     case CAudioInfo::CHANNEL_STEREO:
  65     default:
  66         mSampleSpec.channels = 2;
  67         break;
  68     }
  69
  70     // Convert format for PA
  71     switch (mAudioInfo.getSampleType()) {
  72     case CAudioInfo::SAMPLE_TYPE_U8:
  73         mSampleSpec.format = PA_SAMPLE_U8;
  74         break;
  75
  76     case CAudioInfo::SAMPLE_TYPE_S16_LE:
  77     default:
  78         mSampleSpec.format = PA_SAMPLE_S16LE;
  79         break;
  80     }
  81
  82     // Sets channelmap
  83     pa_channel_map_init_auto(&mChannelMap, mSampleSpec.channels, PA_CHANNEL_MAP_ALSA);
  84
  85     // Sets stream name
  86     switch (mLatency) {
  87     case STREAM_LATENCY_OUTPUT_MID:
  88         mStreamName = STREAM_NAME_OUTPUT;
  89         break;
  90
  91     case STREAM_LATENCY_OUTPUT_HIGH:
  92         mStreamName = STREAM_NAME_OUTPUT_HIGH_LATENCY;
  93         break;
  94
  95     case STREAM_LATENCY_OUTPUT_LOW:
  96         mStreamName = STREAM_NAME_OUTPUT_LOW_LATENCY;
  97         break;
  98
  99     case STREAM_LATENCY_OUTPUT_VOIP:
 100          mStreamName = STREAM_NAME_OUTPUT_VOIP;
 101          break;
 102
 103     case STREAM_LATENCY_INPUT_HIGH:
 104         mStreamName = STREAM_NAME_INPUT_HIGH_LATENCY;
 105         break;
 106
 107     case STREAM_LATENCY_INPUT_LOW:
 108         mStreamName = STREAM_NAME_INPUT_LOW_LATENCY;
 109         break;
 110
 111     case STREAM_LATENCY_INPUT_VOIP:
 112         mStreamName = STREAM_NAME_INPUT_VOIP;
 113         break;
 114
 115     case STREAM_LATENCY_INPUT_MID:
 116     default:
 117         mStreamName = STREAM_NAME_INPUT;
 118         break;
 119     }
 120 }
 121
 122 CPulseStreamSpec::EStreamLatency CPulseStreamSpec::getStreamLatency() {
 123     return mLatency;
 124 }
 125
 126 CAudioInfo CPulseStreamSpec::getAudioInfo() {
 127     return mAudioInfo;
 128 }
 129
 130 pa_sample_spec CPulseStreamSpec::getSampleSpec() {
 131     return mSampleSpec;
 132 }
 133
 134 pa_channel_map CPulseStreamSpec::getChannelMap() {
 135     return mChannelMap;
 136 }
 137
 138 const char* CPulseStreamSpec::getStreamName() {
 139     return mStreamName;
 140 }