void CPulseAEStream::SetVolume(float volume)
{
if (!m_Initialized)
return;
if (!pa_threaded_mainloop_in_thread(m_MainLoop))
pa_threaded_mainloop_lock(m_MainLoop);
if (volume > 0.f)
{
m_Volume = volume;
pa_volume_t paVolume = pa_sw_volume_from_linear((double)(m_Volume * m_MaxVolume));
pa_cvolume_set(&m_ChVolume, m_SampleSpec.channels, paVolume);
}
else
pa_cvolume_mute(&m_ChVolume,m_SampleSpec.channels);
pa_operation *op = pa_context_set_sink_input_volume(m_Context, pa_stream_get_index(m_Stream), &m_ChVolume, NULL, NULL);
if (op == NULL)
CLog::Log(LOGERROR, "PulseAudio: Failed to set volume");
else
pa_operation_unref(op);
if (!pa_threaded_mainloop_in_thread(m_MainLoop))
pa_threaded_mainloop_unlock(m_MainLoop);
}
int main(int argc, char *argv[]) {
pa_mempool *pool;
pa_sample_spec a, b;
pa_cvolume v;
pa_log_set_level(PA_LOG_DEBUG);
pa_assert_se(pool = pa_mempool_new(FALSE, 0));
a.channels = b.channels = 1;
a.rate = b.rate = 44100;
v.channels = a.channels;
v.values[0] = pa_sw_volume_from_linear(0.5);
for (a.format = 0; a.format < PA_SAMPLE_MAX; a.format ++) {
for (b.format = 0; b.format < PA_SAMPLE_MAX; b.format ++) {
pa_resampler *forth, *back;
pa_memchunk i, j, k;
printf("=== %s -> %s -> %s -> /2\n",
pa_sample_format_to_string(a.format),
pa_sample_format_to_string(b.format),
pa_sample_format_to_string(a.format));
pa_assert_se(forth = pa_resampler_new(pool, &a, NULL, &b, NULL, PA_RESAMPLER_AUTO, 0));
pa_assert_se(back = pa_resampler_new(pool, &b, NULL, &a, NULL, PA_RESAMPLER_AUTO, 0));
i.memblock = generate_block(pool, &a);
i.length = pa_memblock_get_length(i.memblock);
i.index = 0;
pa_resampler_run(forth, &i, &j);
pa_resampler_run(back, &j, &k);
printf("before: ");
dump_block(&a, &i);
printf("after : ");
dump_block(&b, &j);
printf("reverse: ");
dump_block(&a, &k);
pa_memblock_unref(j.memblock);
pa_memblock_unref(k.memblock);
pa_volume_memchunk(&i, &a, &v);
printf("volume: ");
dump_block(&a, &i);
pa_memblock_unref(i.memblock);
pa_resampler_free(forth);
pa_resampler_free(back);
}
}
pa_mempool_free(pool);
return 0;
}
void PulseAudioInput::SetGain(long m_gain)
{
pa_cvolume v;
v.values[0] = pa_sw_volume_from_linear(m_gain);
pa_cvolume_set(&v, 2, v.values[0]);
// pa_volume_t gain = pa_sw_volume_from_linear(m_gain);
// pa_cvolume_set(mp_vol, 1, gain);
return;
}
int main(PA_GCC_UNUSED int argc, PA_GCC_UNUSED char *argv[]) {
pa_volume_t v;
for (v = PA_VOLUME_MUTED; v <= PA_VOLUME_NORM*2; v += 256) {
double dB = pa_sw_volume_to_dB(v);
double f = pa_sw_volume_to_linear(v);
printf("Volume: %3i; percent: %i%%; decibel %0.2f; linear = %0.2f; volume(decibel): %3i; volume(linear): %3i\n",
v, (v*100)/PA_VOLUME_NORM, dB, f, pa_sw_volume_from_dB(dB), pa_sw_volume_from_linear(f));
}
return 0;
}
pa_volume_t pa_sw_volume_from_dB(double dB) {
if (isinf(dB) < 0 || dB <= PA_DECIBEL_MININFTY)
return PA_VOLUME_MUTED;
return pa_sw_volume_from_linear(dB_to_linear(dB));
}
bool CPulseAESound::Initialize()
{
/* we dont re-init the wav loader in PA as PA handles the samplerate */
if (!m_wavLoader.IsValid())
return false;
m_sampleSpec.format = PA_SAMPLE_FLOAT32NE;
m_sampleSpec.rate = m_wavLoader.GetSampleRate();
m_sampleSpec.channels = m_wavLoader.GetChannelLayout().Count();
if (!pa_sample_spec_valid(&m_sampleSpec))
{
CLog::Log(LOGERROR, "CPulseAESound::Initialize - Invalid sample spec");
return false;
}
struct pa_channel_map map;
map.channels = m_sampleSpec.channels;
switch (map.channels)
{
case 1:
map.map[0] = PA_CHANNEL_POSITION_MONO;
break;
case 2:
map.map[0] = PA_CHANNEL_POSITION_FRONT_LEFT;
map.map[1] = PA_CHANNEL_POSITION_FRONT_RIGHT;
break;
default:
CLog::Log(LOGERROR, "CPulseAESound::Initialize - We do not yet support multichannel sounds");
return false;
}
m_maxVolume = CAEFactory::GetEngine()->GetVolume();
m_volume = 1.0f;
pa_volume_t paVolume = pa_sw_volume_from_linear((double)(m_volume * m_maxVolume));
pa_cvolume_set(&m_chVolume, m_sampleSpec.channels, paVolume);
pa_threaded_mainloop_lock(m_mainLoop);
if ((m_stream = pa_stream_new(m_context, m_pulseName.c_str(), &m_sampleSpec, &map)) == NULL)
{
CLog::Log(LOGERROR, "CPulseAESound::Initialize - Could not create a stream");
pa_threaded_mainloop_unlock(m_mainLoop);
return false;
}
pa_stream_set_state_callback(m_stream, CPulseAESound::StreamStateCallback, this);
pa_stream_set_write_callback(m_stream, CPulseAESound::StreamWriteCallback, this);
if (pa_stream_connect_upload(m_stream, m_wavLoader.GetFrameCount() * pa_frame_size(&m_sampleSpec)) != 0)
{
CLog::Log(LOGERROR, "CPulseAESound::Initialize - Could not initialize the stream");
pa_stream_disconnect(m_stream);
m_stream = NULL;
pa_threaded_mainloop_unlock(m_mainLoop);
return false;
}
/* check if the stream failed */
if (pa_stream_get_state(m_stream) == PA_STREAM_FAILED)
{
CLog::Log(LOGERROR, "CPulseAESound::Initialize - Waited for the stream but it failed");
pa_stream_disconnect(m_stream);
m_stream = NULL;
pa_threaded_mainloop_unlock(m_mainLoop);
return false;
}
pa_threaded_mainloop_unlock(m_mainLoop);
return true;
}
CPulseAEStream::CPulseAEStream(pa_context *context, pa_threaded_mainloop *mainLoop, enum AEDataFormat format, unsigned int sampleRate, CAEChannelInfo channelLayout, unsigned int options) : m_fader(this)
{
ASSERT(channelLayout.Count());
m_Destroyed = false;
m_Initialized = false;
m_Paused = false;
m_Stream = NULL;
m_Context = context;
m_MainLoop = mainLoop;
m_format = format;
m_sampleRate = sampleRate;
m_channelLayout = channelLayout;
m_options = options;
m_DrainOperation = NULL;
m_slave = NULL;
pa_threaded_mainloop_lock(m_MainLoop);
m_SampleSpec.channels = channelLayout.Count();
m_SampleSpec.rate = m_sampleRate;
switch (m_format)
{
case AE_FMT_U8 : m_SampleSpec.format = PA_SAMPLE_U8; break;
case AE_FMT_S16NE : m_SampleSpec.format = PA_SAMPLE_S16NE; break;
case AE_FMT_S16LE : m_SampleSpec.format = PA_SAMPLE_S16LE; break;
case AE_FMT_S16BE : m_SampleSpec.format = PA_SAMPLE_S16BE; break;
case AE_FMT_S24NE3: m_SampleSpec.format = PA_SAMPLE_S24NE; break;
case AE_FMT_S24NE4: m_SampleSpec.format = PA_SAMPLE_S24_32NE; break;
case AE_FMT_S32NE : m_SampleSpec.format = PA_SAMPLE_S32NE; break;
case AE_FMT_S32LE : m_SampleSpec.format = PA_SAMPLE_S32LE; break;
case AE_FMT_S32BE : m_SampleSpec.format = PA_SAMPLE_S32BE; break;
case AE_FMT_FLOAT : m_SampleSpec.format = PA_SAMPLE_FLOAT32NE; break;
#if PA_CHECK_VERSION(1,0,0)
case AE_FMT_DTS :
case AE_FMT_EAC3 :
case AE_FMT_AC3 : m_SampleSpec.format = PA_SAMPLE_S16NE; break;
#endif
default:
CLog::Log(LOGERROR, "PulseAudio: Invalid format %i", format);
pa_threaded_mainloop_unlock(m_MainLoop);
m_format = AE_FMT_INVALID;
return;
}
if (!pa_sample_spec_valid(&m_SampleSpec))
{
CLog::Log(LOGERROR, "PulseAudio: Invalid sample spec");
pa_threaded_mainloop_unlock(m_MainLoop);
Destroy();
return /*false*/;
}
m_frameSize = pa_frame_size(&m_SampleSpec);
struct pa_channel_map map;
map.channels = m_channelLayout.Count();
for (unsigned int ch = 0; ch < m_channelLayout.Count(); ++ch)
switch(m_channelLayout[ch])
{
case AE_CH_NULL: break;
case AE_CH_MAX : break;
case AE_CH_RAW : break;
case AE_CH_FL : map.map[ch] = PA_CHANNEL_POSITION_FRONT_LEFT ; break;
case AE_CH_FR : map.map[ch] = PA_CHANNEL_POSITION_FRONT_RIGHT ; break;
case AE_CH_FC : map.map[ch] = PA_CHANNEL_POSITION_FRONT_CENTER ; break;
case AE_CH_BC : map.map[ch] = PA_CHANNEL_POSITION_REAR_CENTER ; break;
case AE_CH_BL : map.map[ch] = PA_CHANNEL_POSITION_REAR_LEFT ; break;
case AE_CH_BR : map.map[ch] = PA_CHANNEL_POSITION_REAR_RIGHT ; break;
case AE_CH_LFE : map.map[ch] = PA_CHANNEL_POSITION_LFE ; break;
case AE_CH_FLOC: map.map[ch] = PA_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER ; break;
case AE_CH_FROC: map.map[ch] = PA_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER; break;
case AE_CH_SL : map.map[ch] = PA_CHANNEL_POSITION_SIDE_LEFT ; break;
case AE_CH_SR : map.map[ch] = PA_CHANNEL_POSITION_SIDE_RIGHT ; break;
case AE_CH_TC : map.map[ch] = PA_CHANNEL_POSITION_TOP_CENTER ; break;
case AE_CH_TFL : map.map[ch] = PA_CHANNEL_POSITION_TOP_FRONT_LEFT ; break;
case AE_CH_TFR : map.map[ch] = PA_CHANNEL_POSITION_TOP_FRONT_RIGHT ; break;
case AE_CH_TFC : map.map[ch] = PA_CHANNEL_POSITION_TOP_CENTER ; break;
case AE_CH_TBL : map.map[ch] = PA_CHANNEL_POSITION_TOP_REAR_LEFT ; break;
case AE_CH_TBR : map.map[ch] = PA_CHANNEL_POSITION_TOP_REAR_RIGHT ; break;
case AE_CH_TBC : map.map[ch] = PA_CHANNEL_POSITION_TOP_REAR_CENTER ; break;
default: break;
}
m_MaxVolume = CAEFactory::GetEngine()->GetVolume();
m_Volume = 1.0f;
pa_volume_t paVolume = pa_sw_volume_from_linear((double)(m_Volume * m_MaxVolume));
pa_cvolume_set(&m_ChVolume, m_SampleSpec.channels, paVolume);
#if PA_CHECK_VERSION(1,0,0)
pa_format_info *info[1];
info[0] = pa_format_info_new();
switch(m_format)
{
case AE_FMT_DTS : info[0]->encoding = PA_ENCODING_DTS_IEC61937 ; break;
case AE_FMT_EAC3: info[0]->encoding = PA_ENCODING_EAC3_IEC61937; break;
case AE_FMT_AC3 : info[0]->encoding = PA_ENCODING_AC3_IEC61937 ; break;
default: info[0]->encoding = PA_ENCODING_PCM ; break;
}
pa_format_info_set_rate (info[0], m_SampleSpec.rate);
pa_format_info_set_channels (info[0], m_SampleSpec.channels);
pa_format_info_set_channel_map (info[0], &map);
pa_format_info_set_sample_format(info[0], m_SampleSpec.format);
m_Stream = pa_stream_new_extended(m_Context, "audio stream", info, 1, NULL);
pa_format_info_free(info[0]);
#else
m_Stream = pa_stream_new(m_Context, "audio stream", &m_SampleSpec, &map);
#endif
if (m_Stream == NULL)
{
CLog::Log(LOGERROR, "PulseAudio: Could not create a stream");
pa_threaded_mainloop_unlock(m_MainLoop);
Destroy();
return /*false*/;
}
pa_stream_set_state_callback(m_Stream, CPulseAEStream::StreamStateCallback, this);
pa_stream_set_write_callback(m_Stream, CPulseAEStream::StreamRequestCallback, this);
pa_stream_set_latency_update_callback(m_Stream, CPulseAEStream::StreamLatencyUpdateCallback, this);
pa_stream_set_underflow_callback(m_Stream, CPulseAEStream::StreamUnderflowCallback, this);
int flags = PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
if (options && AESTREAM_FORCE_RESAMPLE)
flags |= PA_STREAM_VARIABLE_RATE;
if (pa_stream_connect_playback(m_Stream, NULL, NULL, (pa_stream_flags)flags, &m_ChVolume, NULL) < 0)
{
CLog::Log(LOGERROR, "PulseAudio: Failed to connect stream to output");
pa_threaded_mainloop_unlock(m_MainLoop);
Destroy();
return /*false*/;
}
/* Wait until the stream is ready */
do
{
pa_threaded_mainloop_wait(m_MainLoop);
CLog::Log(LOGDEBUG, "PulseAudio: Stream %s", StreamStateToString(pa_stream_get_state(m_Stream)));
}
while (pa_stream_get_state(m_Stream) != PA_STREAM_READY && pa_stream_get_state(m_Stream) != PA_STREAM_FAILED);
if (pa_stream_get_state(m_Stream) == PA_STREAM_FAILED)
{
CLog::Log(LOGERROR, "PulseAudio: Waited for the stream but it failed");
pa_threaded_mainloop_unlock(m_MainLoop);
Destroy();
return /*false*/;
}
m_cacheSize = pa_stream_writable_size(m_Stream);
pa_threaded_mainloop_unlock(m_MainLoop);
m_Initialized = true;
CLog::Log(LOGINFO, "PulseAEStream::Initialized");
CLog::Log(LOGINFO, " Sample Rate : %d", m_sampleRate);
CLog::Log(LOGINFO, " Sample Format : %s", CAEUtil::DataFormatToStr(m_format));
CLog::Log(LOGINFO, " Channel Count : %d", m_channelLayout.Count());
CLog::Log(LOGINFO, " Channel Layout: %s", ((std::string)m_channelLayout).c_str());
CLog::Log(LOGINFO, " Frame Size : %d", m_frameSize);
CLog::Log(LOGINFO, " Cache Size : %d", m_cacheSize);
Resume();
return /*true*/;
}
void
gst_pulse_cvolume_from_linear (pa_cvolume * v, unsigned channels,
gdouble volume)
{
pa_cvolume_set (v, channels, pa_sw_volume_from_linear (volume));
}
JNIEXPORT jint JNICALL
Java_org_jitsi_impl_neomedia_pulseaudio_PA_sw_1volume_1from_1linear
(JNIEnv *env, jclass clazz, jdouble v)
{
return pa_sw_volume_from_linear(v);
}
pa_volume_t pa_sw_volume_multiply(pa_volume_t a, pa_volume_t b) {
return pa_sw_volume_from_linear(pa_sw_volume_to_linear(a)* pa_sw_volume_to_linear(b));
}
int main(int argc, char *argv[]) {
pa_volume_t v;
pa_cvolume cv;
float b;
pa_channel_map map;
pa_volume_t md = 0;
unsigned mdn = 0;
if (!getenv("MAKE_CHECK"))
pa_log_set_level(PA_LOG_DEBUG);
pa_log("Attenuation of sample 1 against 32767: %g dB", 20.0*log10(1.0/32767.0));
pa_log("Smallest possible attenuation > 0 applied to 32767: %li", lrint(32767.0*pa_sw_volume_to_linear(1)));
for (v = PA_VOLUME_MUTED; v <= PA_VOLUME_NORM*2; v += 256) {
double dB = pa_sw_volume_to_dB(v);
double f = pa_sw_volume_to_linear(v);
pa_log_debug("Volume: %3i; percent: %i%%; decibel %0.2f; linear = %0.2f; volume(decibel): %3i; volume(linear): %3i",
v, (v*100)/PA_VOLUME_NORM, dB, f, pa_sw_volume_from_dB(dB), pa_sw_volume_from_linear(f));
}
for (v = PA_VOLUME_MUTED; v <= PA_VOLUME_NORM*2; v += 256) {
char s[PA_CVOLUME_SNPRINT_MAX], t[PA_SW_CVOLUME_SNPRINT_DB_MAX];
pa_cvolume_set(&cv, 2, v);
pa_log_debug("Volume: %3i [%s] [%s]", v, pa_cvolume_snprint(s, sizeof(s), &cv), pa_sw_cvolume_snprint_dB(t, sizeof(t), &cv));
}
map.channels = cv.channels = 2;
map.map[0] = PA_CHANNEL_POSITION_LEFT;
map.map[1] = PA_CHANNEL_POSITION_RIGHT;
for (cv.values[0] = PA_VOLUME_MUTED; cv.values[0] <= PA_VOLUME_NORM*2; cv.values[0] += 4096)
for (cv.values[1] = PA_VOLUME_MUTED; cv.values[1] <= PA_VOLUME_NORM*2; cv.values[1] += 4096) {
char s[PA_CVOLUME_SNPRINT_MAX];
pa_log_debug("Volume: [%s]; balance: %2.1f", pa_cvolume_snprint(s, sizeof(s), &cv), pa_cvolume_get_balance(&cv, &map));
}
for (cv.values[0] = PA_VOLUME_MUTED+4096; cv.values[0] <= PA_VOLUME_NORM*2; cv.values[0] += 4096)
for (cv.values[1] = PA_VOLUME_MUTED; cv.values[1] <= PA_VOLUME_NORM*2; cv.values[1] += 4096)
for (b = -1.0f; b <= 1.0f; b += 0.2f) {
char s[PA_CVOLUME_SNPRINT_MAX];
pa_cvolume r;
float k;
pa_log_debug("Before: volume: [%s]; balance: %2.1f", pa_cvolume_snprint(s, sizeof(s), &cv), pa_cvolume_get_balance(&cv, &map));
r = cv;
pa_cvolume_set_balance(&r, &map,b);
k = pa_cvolume_get_balance(&r, &map);
pa_log_debug("After: volume: [%s]; balance: %2.1f (intended: %2.1f) %s", pa_cvolume_snprint(s, sizeof(s), &r), k, b, k < b-.05 || k > b+.5 ? "MISMATCH" : "");
}
for (v = PA_VOLUME_MUTED; v <= PA_VOLUME_NORM*2; v += 51) {
double l = pa_sw_volume_to_linear(v);
pa_volume_t k = pa_sw_volume_from_linear(l);
double db = pa_sw_volume_to_dB(v);
pa_volume_t r = pa_sw_volume_from_dB(db);
pa_volume_t w;
pa_assert(k == v);
pa_assert(r == v);
for (w = PA_VOLUME_MUTED; w < PA_VOLUME_NORM*2; w += 37) {
double t = pa_sw_volume_to_linear(w);
double db2 = pa_sw_volume_to_dB(w);
pa_volume_t p, p1, p2;
double q, qq;
p = pa_sw_volume_multiply(v, w);
qq = db + db2;
p2 = pa_sw_volume_from_dB(qq);
q = l*t;
p1 = pa_sw_volume_from_linear(q);
if (p2 > p && p2 - p > md)
md = p2 - p;
if (p2 < p && p - p2 > md)
md = p - p2;
if (p1 > p && p1 - p > md)
md = p1 - p;
if (p1 < p && p - p1 > md)
md = p - p1;
if (p1 != p || p2 != p)
mdn++;
}
}
pa_log("max deviation: %lu n=%lu", (unsigned long) md, (unsigned long) mdn);
pa_assert(md <= 1);
pa_assert(mdn <= 251);
return 0;
}