qqnxsndhelpers_p.h File Reference

(b5f353a5c3ff5f20b7e3a724b34d49bf88357f47)

#include <alsa/asoundlib.h>
#include <QtCore/qbytearray.h>
#include <QtCore/qloggingcategory.h>
#include <QtMultimedia/qaudioformat.h>
#include <QtMultimedia/private/qaudiohelpers_p.h>
#include <chrono>
#include <cstddef>
#include <cstdint>
#include <memory>
#include <optional>

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Classes
class	QnxSndHelpers::WakePipe
struct	QnxSndHelpers::HintsDeleter
struct	QnxSndHelpers::PcmOpenConfig
struct	QnxSndHelpers::PcmOpenResult

Namespaces
namespace	QnxSndHelpers

Typedefs
using	QnxSndHelpers::HintsGuard = std::unique_ptr<void *, HintsDeleter>

Enumerations
enum class	QnxSndHelpers::PollOutcome { QnxSndHelpers::Ready , QnxSndHelpers::Woken , QnxSndHelpers::Error }

Functions
PollOutcome	QnxSndHelpers::pollPcm (snd_pcm_t *handle, const WakePipe &wake)
snd_pcm_format_t	QnxSndHelpers::mapSampleFormat (QAudioFormat::SampleFormat) noexcept
int	QnxSndHelpers::recoverFromXrun (snd_pcm_t *handle, int err)
int	QnxSndHelpers::startPcm (snd_pcm_t *handle)
void	QnxSndHelpers::setWorkerRealtimePriority (const QLoggingCategory &category)
PcmOpenResult	QnxSndHelpers::openConfiguredPcm (const PcmOpenConfig &config)

Variables
constexpr int	QnxSndHelpers::kSuspendResumeRetryLimit = 5
constexpr std::chrono::milliseconds	QnxSndHelpers::kSuspendResumeRetryDelay { 100 }
constexpr unsigned	QnxSndHelpers::kDefaultPeriodCount = 3
constexpr unsigned	QnxSndHelpers::kMinPeriodCount = 2
constexpr unsigned	QnxSndHelpers::kMaxPeriodCount = 16
constexpr snd_pcm_uframes_t	QnxSndHelpers::kDefaultPeriodFrames = 1024
constexpr int	QnxSndHelpers::kMinWorkerPriority = 11
constexpr int	QnxSndHelpers::kMaxWorkerPriority = 23
constexpr int	QnxSndHelpers::kDefaultWorkerPriority = 20