2019-03-23 06:08:10 +00:00
|
|
|
#include "slaud.h"
|
|
|
|
|
|
|
|
#include <SDL.h>
|
|
|
|
|
|
|
|
SLAudioRenderer::SLAudioRenderer()
|
|
|
|
: m_AudioContext(nullptr),
|
|
|
|
m_AudioStream(nullptr)
|
|
|
|
{
|
2019-04-28 18:01:54 +00:00
|
|
|
SLAudio_SetLogFunction(SLAudioRenderer::slLogCallback, nullptr);
|
2019-03-23 06:08:10 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
bool SLAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* opusConfig)
|
|
|
|
{
|
|
|
|
m_AudioContext = SLAudio_CreateContext();
|
|
|
|
if (m_AudioContext == nullptr) {
|
|
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
|
|
|
|
"SLAudio_CreateContext() failed");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
m_AudioStream = SLAudio_CreateStream(m_AudioContext,
|
|
|
|
opusConfig->sampleRate,
|
|
|
|
opusConfig->channelCount,
|
|
|
|
SAMPLES_PER_FRAME * sizeof(short) * opusConfig->channelCount,
|
|
|
|
1);
|
|
|
|
if (m_AudioStream == nullptr) {
|
|
|
|
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
|
|
|
|
"SLAudio_CreateStream() failed");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
|
|
|
|
"Using SLAudio renderer");
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
SLAudioRenderer::~SLAudioRenderer()
|
|
|
|
{
|
|
|
|
if (m_AudioStream != nullptr) {
|
|
|
|
SLAudio_FreeStream(m_AudioStream);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (m_AudioContext != nullptr) {
|
|
|
|
SLAudio_FreeContext(m_AudioContext);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
bool SLAudioRenderer::submitAudio(short* audioBuffer, int audioSize)
|
|
|
|
{
|
|
|
|
void* outputBuffer = SLAudio_BeginFrame(m_AudioStream);
|
|
|
|
|
|
|
|
if (outputBuffer != nullptr) {
|
|
|
|
memcpy(outputBuffer, audioBuffer, audioSize);
|
|
|
|
SLAudio_SubmitFrame(m_AudioStream);
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
2019-04-28 18:01:54 +00:00
|
|
|
|
|
|
|
void SLAudioRenderer::slLogCallback(void *context, ESLAudioLog logLevel, const char *message)
|
|
|
|
{
|
|
|
|
SDL_LogPriority priority;
|
|
|
|
|
|
|
|
switch (logLevel)
|
|
|
|
{
|
|
|
|
case k_ESLAudioLogError:
|
|
|
|
priority = SDL_LOG_PRIORITY_ERROR;
|
|
|
|
break;
|
|
|
|
case k_ESLAudioLogWarning:
|
|
|
|
priority = SDL_LOG_PRIORITY_WARN;
|
|
|
|
break;
|
|
|
|
case k_ESLAudioLogInfo:
|
|
|
|
priority = SDL_LOG_PRIORITY_INFO;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
case k_ESLAudioLogDebug:
|
|
|
|
priority = SDL_LOG_PRIORITY_DEBUG;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION,
|
|
|
|
priority,
|
|
|
|
"SLAudio: %s",
|
|
|
|
message);
|
|
|
|
}
|