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Only call pa_cvolme set on stream creation if volume explicitly set.

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Streams without a custom volume set use suitable volume selected
by the PulseAudio server. This is usually the correct choice, since then
stream-restore module can apply old volume to the stream. Also with
Sailfish explicitly setting the volume to streams breaks system volume.

Change-Id: I75f5bf4e7aaafb4bd55510f5ac4ddf03767d494b
Done-with: Juho Hämäläinen <juho.hamalainen@tieto.com>
Reviewed-by: Andrew den Exter <andrew.den.exter@qinetic.com.au>
This commit is contained in:
Robin Burchell
2014-07-22 18:24:22 +02:00
committed by Robin Burchell
parent 1c5ea9561a
commit 5f33d7bea3
2 changed files with 22 additions and 7 deletions
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28
src/plugins/pulseaudio/qaudiooutput_pulse.cpp
View File

@@ -159,6 +159,7 @@ QPulseAudioOutput::QPulseAudioOutput(const QByteArray &device)
, m_audioBuffer(0)
, m_resuming(false)
, m_volume(1.0)
, m_customVolumeRequired(false)
{
connect(m_tickTimer, SIGNAL(timeout()), SLOT(userFeed()));
}
@@ -306,13 +307,25 @@ bool QPulseAudioOutput::open()
pa_stream_set_latency_update_callback(m_stream, outputStreamLatencyCallback, this);
pa_volume_t paVolume;
if (qFuzzyCompare(m_volume, 0.0)) {
paVolume = PA_VOLUME_MUTED;
m_volume = 0.0;
} else {
paVolume = qFloor(m_volume * PA_VOLUME_NORM + 0.5);
/* streams without a custom volume set are expected to already have a
* sensible volume set by Pulse, so we don't set it explicitly.
*
* explicit setting also breaks volume handling on sailfish, where each
* stream's volume is set separately inside pulseaudio, with the
* exception of streams that already have a volume set (i.e. if we set
* it here, we'd ignore system volume).
*/
if (m_customVolumeRequired) {
if (qFuzzyCompare(m_volume, 0.0)) {
paVolume = PA_VOLUME_MUTED;
m_volume = 0.0;
} else {
paVolume = qFloor(m_volume * PA_VOLUME_NORM + 0.5);
}
pa_cvolume_set(&m_chVolume, m_spec.channels, paVolume);
}
pa_cvolume_set(&m_chVolume, m_spec.channels, paVolume);
if (m_bufferSize <= 0 && m_category == LOW_LATENCY_CATEGORY_NAME) {
m_bufferSize = bytesPerSecond * LowLatencyBufferSizeMs / qint64(1000);
@@ -325,7 +338,7 @@ bool QPulseAudioOutput::open()
requestedBuffer.prebuf = (uint32_t)-1;
requestedBuffer.tlength = m_bufferSize;
if (pa_stream_connect_playback(m_stream, m_device.data(), (m_bufferSize > 0) ? &requestedBuffer : NULL, (pa_stream_flags_t)0, &m_chVolume, NULL) < 0) {
if (pa_stream_connect_playback(m_stream, m_device.data(), (m_bufferSize > 0) ? &requestedBuffer : NULL, (pa_stream_flags_t)0, m_customVolumeRequired ? &m_chVolume : NULL, NULL) < 0) {
qWarning() << "pa_stream_connect_playback() failed!";
pa_stream_unref(m_stream);
m_stream = 0;
@@ -636,6 +649,7 @@ void QPulseAudioOutput::setVolume(qreal vol)
{
if (vol >= 0.0 && vol <= 1.0) {
if (!qFuzzyCompare(m_volume, vol)) {
m_customVolumeRequired = true;
m_volume = vol;
if (m_opened) {
QPulseAudioEngine *pulseEngine = QPulseAudioEngine::instance();

1
src/plugins/pulseaudio/qaudiooutput_pulse.h
View File

@@ -142,6 +142,7 @@ private:
QString m_category;
qreal m_volume;
bool m_customVolumeRequired;
pa_cvolume m_chVolume;
pa_sample_spec m_spec;
};