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 static const char* STREAM_LATENCY_LOW  = "low";
  36 static const char* STREAM_LATENCY_MID  = "mid";
  37 static const char* STREAM_LATENCY_HIGH = "high";
  38 static const char* STREAM_LATENCY_VOIP = "voip";
  39
  40
  41 CPulseStreamSpec::CPulseStreamSpec() throw (CAudioError) :
  42     __mLatency(EStreamLatency::STREAM_LATENCY_INPUT_MID),
  43     __mStreamName(NULL) {
  44     __adjustSpec();
  45 }
  46
  47 CPulseStreamSpec::CPulseStreamSpec(EStreamLatency latency, CAudioInfo& audioInfo) throw (CAudioError) :
  48     __mLatency(latency),
  49     __mAudioInfo(audioInfo),
  50     __mStreamName(NULL) {
  51     __adjustSpec();
  52 }
  53
  54 CPulseStreamSpec::CPulseStreamSpec(EStreamLatency latency, CAudioInfo& audioInfo, int customLatency) throw (CAudioError) :
  55     __mLatency(latency),
  56     __mAudioInfo(audioInfo),
  57     __mStreamName(NULL) {
  58     __adjustSpec();
  59 }
  60
  61 CPulseStreamSpec::~CPulseStreamSpec() {
  62 }
  63
  64 void CPulseStreamSpec::__adjustSpec() throw (CAudioError) {
  65     // Sets a sampleRate
  66     __mSampleSpec.rate = __mAudioInfo.getSampleRate();
  67
  68     // Convert channels for PA
  69     switch (__mAudioInfo.getChannel()) {
  70     case CAudioInfo::EChannel::CHANNEL_MONO:
  71         __mSampleSpec.channels = 1;
  72         break;
  73
  74     case CAudioInfo::EChannel::CHANNEL_STEREO:
  75     default:
  76         __mSampleSpec.channels = 2;
  77         break;
  78     }
  79
  80     // Convert format for PA
  81     switch (__mAudioInfo.getSampleType()) {
  82     case CAudioInfo::ESampleType::SAMPLE_TYPE_U8:
  83         __mSampleSpec.format = PA_SAMPLE_U8;
  84         break;
  85
  86     case CAudioInfo::ESampleType::SAMPLE_TYPE_S16_LE:
  87     default:
  88         __mSampleSpec.format = PA_SAMPLE_S16LE;
  89         break;
  90     }
  91
  92     // Sets channelmap
  93     pa_channel_map_init_auto(&__mChannelMap, __mSampleSpec.channels, PA_CHANNEL_MAP_ALSA);
  94
  95     // Sets stream name
  96     switch (__mLatency) {
  97     case EStreamLatency::STREAM_LATENCY_OUTPUT_MID:
  98         __mStreamName = STREAM_NAME_OUTPUT;
  99         break;
 100
 101     case EStreamLatency::STREAM_LATENCY_OUTPUT_HIGH:
 102         __mStreamName = STREAM_NAME_OUTPUT_HIGH_LATENCY;
 103         break;
 104
 105     case EStreamLatency::STREAM_LATENCY_OUTPUT_LOW:
 106         __mStreamName = STREAM_NAME_OUTPUT_LOW_LATENCY;
 107         break;
 108
 109     case EStreamLatency::STREAM_LATENCY_OUTPUT_VOIP:
 110         __mStreamName = STREAM_NAME_OUTPUT_VOIP;
 111         break;
 112
 113     case EStreamLatency::STREAM_LATENCY_INPUT_HIGH:
 114         __mStreamName = STREAM_NAME_INPUT_HIGH_LATENCY;
 115         break;
 116
 117     case EStreamLatency::STREAM_LATENCY_INPUT_LOW:
 118         __mStreamName = STREAM_NAME_INPUT_LOW_LATENCY;
 119         break;
 120
 121     case EStreamLatency::STREAM_LATENCY_INPUT_VOIP:
 122         __mStreamName = STREAM_NAME_INPUT_VOIP;
 123         break;
 124
 125     case EStreamLatency::STREAM_LATENCY_INPUT_MID:
 126     default:
 127         __mStreamName = STREAM_NAME_INPUT;
 128         break;
 129     }
 130 }
 131
 132 CPulseStreamSpec::EStreamLatency CPulseStreamSpec::getStreamLatency() {
 133     return __mLatency;
 134 }
 135
 136 const char* CPulseStreamSpec::getStreamLatencyToString() {
 137     const char* latency;
 138
 139     switch (__mLatency) {
 140     case EStreamLatency::STREAM_LATENCY_INPUT_LOW:
 141     case EStreamLatency::STREAM_LATENCY_OUTPUT_LOW:
 142         latency = STREAM_LATENCY_LOW;
 143         break;
 144     case EStreamLatency::STREAM_LATENCY_INPUT_MID:
 145     case EStreamLatency::STREAM_LATENCY_OUTPUT_MID:
 146         latency = STREAM_LATENCY_MID;
 147         break;
 148     case EStreamLatency::STREAM_LATENCY_INPUT_HIGH:
 149     case EStreamLatency::STREAM_LATENCY_OUTPUT_HIGH:
 150         latency = STREAM_LATENCY_HIGH;
 151         break;
 152     case EStreamLatency::STREAM_LATENCY_INPUT_VOIP:
 153     case EStreamLatency::STREAM_LATENCY_OUTPUT_VOIP:
 154         latency = STREAM_LATENCY_VOIP;
 155         break;
 156     default:
 157         latency = STREAM_LATENCY_MID;
 158         break;
 159     }
 160
 161     return latency;
 162 }
 163
 164 CAudioInfo& CPulseStreamSpec::getAudioInfo() {
 165     return __mAudioInfo;
 166 }
 167
 168 pa_sample_spec CPulseStreamSpec::getSampleSpec() {
 169     return __mSampleSpec;
 170 }
 171
 172 pa_channel_map CPulseStreamSpec::getChannelMap() {
 173     return __mChannelMap;
 174 }
 175
 176 const char* CPulseStreamSpec::getStreamName() {
 177     return __mStreamName;
 178 }