diff --git a/CMakeLists.txt b/CMakeLists.txt index c915d2ee..d0bae7d7 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,6 +1,6 @@ cmake_minimum_required(VERSION 3.2) -project(snapcast LANGUAGES CXX VERSION 0.23.100) +project(snapcast LANGUAGES CXX VERSION 0.23.101) set(PROJECT_DESCRIPTION "Multiroom client-server audio player") set(PROJECT_URL "https://github.com/badaix/snapcast") diff --git a/client/Makefile b/client/Makefile index 3e73aba5..184b6fc5 100644 --- a/client/Makefile +++ b/client/Makefile @@ -14,7 +14,7 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see . -VERSION = 0.23.100 +VERSION = 0.23.101 BIN = snapclient ifeq ($(TARGET), FREEBSD) diff --git a/client/player/alsa_player.cpp b/client/player/alsa_player.cpp index 3cf8832e..fff67c43 100644 --- a/client/player/alsa_player.cpp +++ b/client/player/alsa_player.cpp @@ -16,287 +16,52 @@ along with this program. If not, see . ***/ +#include + #include "alsa_player.hpp" #include "common/aixlog.hpp" #include "common/snap_exception.hpp" #include "common/str_compat.hpp" -#include "common/utils/string_utils.hpp" -using namespace std::chrono_literals; +//#define BUFFER_TIME 120000 +#define PERIOD_TIME 30000 + using namespace std; namespace player { - -static constexpr std::chrono::milliseconds BUFFER_TIME = 80ms; -static constexpr int PERIODS = 4; - -#define exp10(x) (exp((x)*log(10))) - - static constexpr auto LOG_TAG = "Alsa"; -static constexpr auto DEFAULT_MIXER = "PCM"; - AlsaPlayer::AlsaPlayer(boost::asio::io_context& io_context, const ClientSettings::Player& settings, std::shared_ptr stream) - : Player(io_context, settings, stream), handle_(nullptr), ctl_(nullptr), mixer_(nullptr), elem_(nullptr), sd_(io_context), timer_(io_context) + : Player(io_context, settings, stream), handle_(nullptr) { - if (settings_.mixer.mode == ClientSettings::Mixer::Mode::hardware) - { - string tmp; - if (settings_.mixer.parameter.empty()) - mixer_name_ = DEFAULT_MIXER; - else - mixer_name_ = utils::string::split_left(settings_.mixer.parameter, ':', tmp); - - string card; - // default:CARD=ALSA[,DEV=x] => default - mixer_device_ = utils::string::split_left(settings_.pcm_device.name, ':', card); - if (!card.empty()) - { - auto pos = card.find("CARD="); - if (pos != string::npos) - { - card = card.substr(pos + 5); - card = utils::string::split_left(card, ',', tmp); - int card_idx = snd_card_get_index(card.c_str()); - if ((card_idx >= 0) && (card_idx < 32)) - mixer_device_ = "hw:" + std::to_string(card_idx); - } - } - - LOG(DEBUG, LOG_TAG) << "Mixer: " << mixer_name_ << ", device: " << mixer_device_ << "\n"; - } - - buffer_time_ = BUFFER_TIME; - periods_ = PERIODS; - auto params = utils::string::split_pairs(settings.parameter, ',', '='); - if (params.find("buffer_time") != params.end()) - buffer_time_ = std::chrono::milliseconds(std::max(cpt::stoi(params["buffer_time"]), 10)); - if (params.find("fragments") != params.end()) - periods_ = std::max(cpt::stoi(params["fragments"]), 2); - - LOG(INFO, LOG_TAG) << "Using buffer_time: " << buffer_time_.count() / 1000 << " ms, fragments: " << periods_ << "\n"; -} - - -void AlsaPlayer::setHardwareVolume(double volume, bool muted) -{ - std::lock_guard lock(mutex_); - if (elem_ == nullptr) - return; - - last_change_ = std::chrono::steady_clock::now(); - try - { - int val = muted ? 0 : 1; - int err = snd_mixer_selem_set_playback_switch_all(elem_, val); - if (err < 0) - LOG(ERROR, LOG_TAG) << "Failed to mute, error: " << snd_strerror(err) << "\n"; - - long minv, maxv; - if ((err = snd_mixer_selem_get_playback_dB_range(elem_, &minv, &maxv)) == 0) - { - double min_norm = exp10((minv - maxv) / 6000.0); - volume = volume * (1 - min_norm) + min_norm; - double mixer_volume = 6000.0 * log10(volume) + maxv; - - LOG(DEBUG, LOG_TAG) << "Mixer playback dB range [" << minv << ", " << maxv << "], volume: " << volume << ", mixer volume: " << mixer_volume << "\n"; - if ((err = snd_mixer_selem_set_playback_dB_all(elem_, mixer_volume, 0)) < 0) - throw SnapException(std::string("Failed to set playback volume, error: ") + snd_strerror(err)); - } - else - { - if ((err = snd_mixer_selem_get_playback_volume_range(elem_, &minv, &maxv)) < 0) - throw SnapException(std::string("Failed to get playback volume range, error: ") + snd_strerror(err)); - - auto mixer_volume = volume * (maxv - minv) + minv; - LOG(DEBUG, LOG_TAG) << "Mixer playback volume range [" << minv << ", " << maxv << "], volume: " << volume << ", mixer volume: " << mixer_volume - << "\n"; - if ((err = snd_mixer_selem_set_playback_volume_all(elem_, mixer_volume)) < 0) - throw SnapException(std::string("Failed to set playback volume, error: ") + snd_strerror(err)); - } - } - catch (const std::exception& e) - { - LOG(ERROR, LOG_TAG) << "Exception: " << e.what() << "\n"; - uninitMixer(); - } -} - - -bool AlsaPlayer::getHardwareVolume(double& volume, bool& muted) -{ - try - { - std::lock_guard lock(mutex_); - if (elem_ == nullptr) - throw SnapException("Mixer not initialized"); - - long vol; - int err = 0; - while (snd_mixer_handle_events(mixer_) > 0) - this_thread::sleep_for(1us); - long minv, maxv; - if ((err = snd_mixer_selem_get_playback_dB_range(elem_, &minv, &maxv)) == 0) - { - if ((err = snd_mixer_selem_get_playback_dB(elem_, SND_MIXER_SCHN_MONO, &vol)) < 0) - throw SnapException(std::string("Failed to get playback volume, error: ") + snd_strerror(err)); - - volume = pow(10, (vol - maxv) / 6000.0); - if (minv != SND_CTL_TLV_DB_GAIN_MUTE) - { - double min_norm = pow(10, (minv - maxv) / 6000.0); - volume = (volume - min_norm) / (1 - min_norm); - } - } - else - { - if ((err = snd_mixer_selem_get_playback_volume_range(elem_, &minv, &maxv)) < 0) - throw SnapException(std::string("Failed to get playback volume range, error: ") + snd_strerror(err)); - if ((err = snd_mixer_selem_get_playback_volume(elem_, SND_MIXER_SCHN_MONO, &vol)) < 0) - throw SnapException(std::string("Failed to get playback volume, error: ") + snd_strerror(err)); - - vol -= minv; - maxv = maxv - minv; - volume = static_cast(vol) / static_cast(maxv); - } - int val; - if ((err = snd_mixer_selem_get_playback_switch(elem_, SND_MIXER_SCHN_MONO, &val)) < 0) - throw SnapException(std::string("Failed to get mute state, error: ") + snd_strerror(err)); - muted = (val == 0); - LOG(DEBUG, LOG_TAG) << "Get volume, mixer volume range [" << minv << ", " << maxv << "], volume: " << volume << ", muted: " << muted << "\n"; - snd_mixer_handle_events(mixer_); - return true; - } - catch (const std::exception& e) - { - LOG(ERROR, LOG_TAG) << "Exception: " << e.what() << "\n"; - return false; - } -} - - -void AlsaPlayer::waitForEvent() -{ - sd_.async_wait(boost::asio::posix::stream_descriptor::wait_read, [this](const boost::system::error_code& ec) { - if (ec) - { - // TODO: fd is "Bad" after unplugging/plugging USB DAC, i.e. after init/uninit/init cycle - LOG(DEBUG, LOG_TAG) << "waitForEvent error: " << ec.message() << "\n"; - return; - } - - std::lock_guard lock(mutex_); - if (ctl_ == nullptr) - return; - - unsigned short revents; - snd_ctl_poll_descriptors_revents(ctl_, fd_.get(), 1, &revents); - if (revents & POLLIN || (revents == 0)) - { - snd_ctl_event_t* event; - snd_ctl_event_alloca(&event); - - if (((snd_ctl_read(ctl_, event) >= 0) && (snd_ctl_event_get_type(event) == SND_CTL_EVENT_ELEM)) || (revents == 0)) - { - auto now = std::chrono::steady_clock::now(); - if (now - last_change_ < 1s) - { - LOG(DEBUG, LOG_TAG) << "Last volume change by server: " << std::chrono::duration_cast(now - last_change_).count() - << " ms => ignoring volume change\n"; - waitForEvent(); - return; - } - // Sometimes the old volume is reported after this event has been raised. - // As workaround we defer getting the volume by 20ms. - timer_.cancel(); - timer_.expires_after(20ms); - timer_.async_wait([this](const boost::system::error_code& ec) { - if (!ec) - { - double volume; - bool muted; - if (getHardwareVolume(volume, muted)) - { - LOG(DEBUG, LOG_TAG) << "Volume: " << volume << ", muted: " << muted << "\n"; - notifyVolumeChange(volume, muted); - } - } - }); - } - } - waitForEvent(); - }); -} - -void AlsaPlayer::initMixer() -{ - if (settings_.mixer.mode != ClientSettings::Mixer::Mode::hardware) - return; - - LOG(DEBUG, LOG_TAG) << "initMixer\n"; - std::lock_guard lock(mutex_); - int err; - if ((err = snd_ctl_open(&ctl_, mixer_device_.c_str(), SND_CTL_READONLY)) < 0) - throw SnapException("Can't open control for " + mixer_device_ + ", error: " + snd_strerror(err)); - if ((err = snd_ctl_subscribe_events(ctl_, 1)) < 0) - throw SnapException("Can't subscribe for events for " + mixer_device_ + ", error: " + snd_strerror(err)); - fd_ = std::unique_ptr>(new pollfd(), [](pollfd* p) { - close(p->fd); - delete p; - }); - err = snd_ctl_poll_descriptors(ctl_, fd_.get(), 1); - LOG(DEBUG, LOG_TAG) << "Filled " << err << " poll descriptors, poll descriptor count: " << snd_ctl_poll_descriptors_count(ctl_) << ", fd: " << fd_->fd - << "\n"; - - snd_mixer_selem_id_t* sid; - snd_mixer_selem_id_alloca(&sid); - int mix_index = 0; - // sets simple-mixer index and name - snd_mixer_selem_id_set_index(sid, mix_index); - snd_mixer_selem_id_set_name(sid, mixer_name_.c_str()); - - if ((err = snd_mixer_open(&mixer_, 0)) < 0) - throw SnapException(std::string("Failed to open mixer, error: ") + snd_strerror(err)); - if ((err = snd_mixer_attach(mixer_, mixer_device_.c_str())) < 0) - throw SnapException("Failed to attach mixer to " + mixer_device_ + ", error: " + snd_strerror(err)); - if ((err = snd_mixer_selem_register(mixer_, NULL, NULL)) < 0) - throw SnapException(std::string("Failed to register selem, error: ") + snd_strerror(err)); - if ((err = snd_mixer_load(mixer_)) < 0) - throw SnapException(std::string("Failed to load mixer, error: ") + snd_strerror(err)); - elem_ = snd_mixer_find_selem(mixer_, sid); - if (!elem_) - throw SnapException("Failed to find mixer: " + mixer_name_); - - sd_ = boost::asio::posix::stream_descriptor(io_context_, fd_->fd); - waitForEvent(); } void AlsaPlayer::initAlsa() { - std::lock_guard lock(mutex_); + unsigned int tmp, rate; + int pcm, channels; + snd_pcm_hw_params_t* params; const SampleFormat& format = stream_->getFormat(); - unsigned int rate = format.rate(); - int channels = format.channels(); - int err; + rate = format.rate(); + channels = format.channels(); - // Open the PCM device in playback mode - if ((err = snd_pcm_open(&handle_, settings_.pcm_device.name.c_str(), SND_PCM_STREAM_PLAYBACK, 0)) < 0) - throw SnapException("Can't open " + settings_.pcm_device.name + ", error: " + snd_strerror(err), err); + /* Open the PCM device in playback mode */ + if ((pcm = snd_pcm_open(&handle_, settings_.pcm_device.name.c_str(), SND_PCM_STREAM_PLAYBACK, 0)) < 0) + throw SnapException("Can't open " + settings_.pcm_device.name + " PCM device: " + snd_strerror(pcm)); - // struct snd_pcm_playback_info_t pinfo; - // if ((pcm = snd_pcm_playback_info( pcm_handle, &pinfo)) < 0) - // fprintf(stderr, "Error: playback info error: %s\n", snd_strerror(err)); - // printf("buffer: '%d'\n", pinfo.buffer_size); - - // Allocate parameters object and fill it with default values - snd_pcm_hw_params_t* params; + /* struct snd_pcm_playback_info_t pinfo; + if ( (pcm = snd_pcm_playback_info( pcm_handle, &pinfo )) < 0 ) + fprintf( stderr, "Error: playback info error: %s\n", snd_strerror( err ) ); + printf("buffer: '%d'\n", pinfo.buffer_size); + */ + /* Allocate parameters object and fill it with default values*/ snd_pcm_hw_params_alloca(¶ms); - if ((err = snd_pcm_hw_params_any(handle_, params)) < 0) - throw SnapException("Can't fill params: " + string(snd_strerror(err))); + + if ((pcm = snd_pcm_hw_params_any(handle_, params)) < 0) + throw SnapException("Can't fill params: " + string(snd_strerror(pcm))); snd_output_t* output; if (snd_output_buffer_open(&output) == 0) @@ -310,9 +75,9 @@ void AlsaPlayer::initAlsa() snd_output_close(output); } - // Set parameters - if ((err = snd_pcm_hw_params_set_access(handle_, params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) - throw SnapException("Can't set interleaved mode: " + string(snd_strerror(err))); + /* Set parameters */ + if ((pcm = snd_pcm_hw_params_set_access(handle_, params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) + throw SnapException("Can't set interleaved mode: " + string(snd_strerror(pcm))); snd_pcm_format_t snd_pcm_format; if (format.bits() == 8) @@ -326,8 +91,8 @@ void AlsaPlayer::initAlsa() else throw SnapException("Unsupported sample format: " + cpt::to_string(format.bits())); - err = snd_pcm_hw_params_set_format(handle_, params, snd_pcm_format); - if (err == -EINVAL) + pcm = snd_pcm_hw_params_set_format(handle_, params, snd_pcm_format); + if (pcm == -EINVAL) { if (snd_pcm_format == SND_PCM_FORMAT_S24_LE) { @@ -340,11 +105,12 @@ void AlsaPlayer::initAlsa() } } - err = snd_pcm_hw_params_set_format(handle_, params, snd_pcm_format); - if (err < 0) + pcm = snd_pcm_hw_params_set_format(handle_, params, snd_pcm_format); + if (pcm < 0) { + cerr << "error: " << pcm << "\n"; stringstream ss; - ss << "Can't set format: " << string(snd_strerror(err)) << ", supported: "; + ss << "Can't set format: " << string(snd_strerror(pcm)) << ", supported: "; for (int format = 0; format <= (int)SND_PCM_FORMAT_LAST; format++) { snd_pcm_format_t snd_pcm_format = static_cast(format); @@ -354,58 +120,31 @@ void AlsaPlayer::initAlsa() throw SnapException(ss.str()); } - if ((err = snd_pcm_hw_params_set_channels(handle_, params, channels)) < 0) - throw SnapException("Can't set channel count: " + string(snd_strerror(err))); + if ((pcm = snd_pcm_hw_params_set_channels(handle_, params, channels)) < 0) + throw SnapException("Can't set channels number: " + string(snd_strerror(pcm))); - if ((err = snd_pcm_hw_params_set_rate_near(handle_, params, &rate, nullptr)) < 0) - throw SnapException("Can't set rate: " + string(snd_strerror(err))); - if (rate != format.rate()) - LOG(WARNING, LOG_TAG) << "Could not set sample rate to " << format.rate() << " Hz, using: " << rate << " Hz\n"; + if ((pcm = snd_pcm_hw_params_set_rate_near(handle_, params, &rate, nullptr)) < 0) + throw SnapException("Can't set rate: " + string(snd_strerror(pcm))); - unsigned int period_time = buffer_time_.count() / periods_; - unsigned int max_period_time = period_time; - if ((err = snd_pcm_hw_params_get_period_time_max(params, &max_period_time, nullptr)) < 0) - { - LOG(ERROR, LOG_TAG) << "Can't get max period time: " << snd_strerror(err) << "\n"; - } - else - { - if (period_time > max_period_time) - { - LOG(INFO, LOG_TAG) << "Period time too large, changing from " << period_time << " to " << max_period_time << "\n"; - period_time = max_period_time; - } - } - // unsigned int min_period_time = period_time; - // if ((err = snd_pcm_hw_params_get_period_time_min(params, &min_period_time, nullptr)) < 0) - // { - // LOG(ERROR, LOG_TAG) << "Can't get min period time: " << snd_strerror(err) << "\n"; - // } - // else - // { - // if (period_time < min_period_time) - // { - // LOG(INFO, LOG_TAG) << "Period time too small, changing from " << period_time << " to " << min_period_time << "\n"; - // period_time = min_period_time; - // } - // } + unsigned int period_time; + snd_pcm_hw_params_get_period_time_max(params, &period_time, nullptr); + if (period_time > PERIOD_TIME) + period_time = PERIOD_TIME; - if ((err = snd_pcm_hw_params_set_period_time_near(handle_, params, &period_time, nullptr)) < 0) - throw SnapException("Can't set period time: " + string(snd_strerror(err))); + unsigned int buffer_time = 4 * period_time; - unsigned int buffer_time = buffer_time_.count(); - if ((err = snd_pcm_hw_params_set_buffer_time_near(handle_, params, &buffer_time, 0)) < 0) - throw SnapException("Can't set periods: " + string(snd_strerror(err))); + snd_pcm_hw_params_set_period_time_near(handle_, params, &period_time, nullptr); + snd_pcm_hw_params_set_buffer_time_near(handle_, params, &buffer_time, nullptr); - // unsigned int periods = periods_; - // if ((err = snd_pcm_hw_params_set_periods_near(handle_, params, &periods, 0)) < 0) - // throw SnapException("Can't set periods: " + string(snd_strerror(err))); + // long unsigned int periodsize = stream_->format.msRate() * 50;//2*rate/50; + // if ((pcm = snd_pcm_hw_params_set_buffer_size_near(pcm_handle, params, &periodsize)) < 0) + // LOG(ERROR, LOG_TAG) << "Unable to set buffer size " << (long int)periodsize << ": " << snd_strerror(pcm) << "\n"; - // Write parameters - if ((err = snd_pcm_hw_params(handle_, params)) < 0) - throw SnapException("Can't set hardware parameters: " + string(snd_strerror(err))); + /* Write parameters */ + if ((pcm = snd_pcm_hw_params(handle_, params)) < 0) + throw SnapException("Can't set hardware parameters: " + string(snd_strerror(pcm))); - // Resume information + /* Resume information */ unsigned int periods; if (snd_pcm_hw_params_get_periods(params, &periods, nullptr) < 0) periods = round((double)buffer_time / (double)period_time); @@ -414,7 +153,21 @@ void AlsaPlayer::initAlsa() << ", buffer time: " << buffer_time << " us, periods: " << periods << ", period time: " << period_time << " us, period frames: " << frames_ << "\n"; - // Allocate buffer to hold single period + LOG(DEBUG, LOG_TAG) << "PCM name: " << snd_pcm_name(handle_) << "\n"; + LOG(DEBUG, LOG_TAG) << "PCM state: " << snd_pcm_state_name(snd_pcm_state(handle_)) << "\n"; + snd_pcm_hw_params_get_channels(params, &tmp); + LOG(DEBUG, LOG_TAG) << "channels: " << tmp << "\n"; + + snd_pcm_hw_params_get_rate(params, &tmp, nullptr); + LOG(DEBUG, LOG_TAG) << "rate: " << tmp << " bps\n"; + + /* Allocate buffer to hold single period */ + snd_pcm_hw_params_get_period_size(params, &frames_, nullptr); + LOG(INFO, LOG_TAG) << "frames: " << frames_ << "\n"; + + snd_pcm_hw_params_get_period_time(params, &tmp, nullptr); + LOG(DEBUG, LOG_TAG) << "period time: " << tmp << "\n"; + snd_pcm_sw_params_t* swparams; snd_pcm_sw_params_alloca(&swparams); snd_pcm_sw_params_current(handle_, swparams); @@ -423,74 +176,23 @@ void AlsaPlayer::initAlsa() snd_pcm_sw_params_set_start_threshold(handle_, swparams, frames_); // snd_pcm_sw_params_set_stop_threshold(pcm_handle, swparams, frames_); snd_pcm_sw_params(handle_, swparams); - - if (snd_pcm_state(handle_) == SND_PCM_STATE_PREPARED) - { - if ((err = snd_pcm_start(handle_)) < 0) - LOG(DEBUG, LOG_TAG) << "Failed to start PCM: " << snd_strerror(err) << "\n"; - } - - if (ctl_ == nullptr) - initMixer(); } -void AlsaPlayer::uninitAlsa(bool uninit_mixer) +void AlsaPlayer::uninitAlsa() { - std::lock_guard lock(mutex_); - if (uninit_mixer) - uninitMixer(); - if (handle_ != nullptr) { - snd_pcm_drop(handle_); + snd_pcm_drain(handle_); snd_pcm_close(handle_); handle_ = nullptr; } } -void AlsaPlayer::uninitMixer() -{ - if (settings_.mixer.mode != ClientSettings::Mixer::Mode::hardware) - return; - - LOG(DEBUG, LOG_TAG) << "uninitMixer\n"; - std::lock_guard lock(mutex_); - if (sd_.is_open()) - { - boost::system::error_code ec; - sd_.cancel(ec); - } - if (ctl_ != nullptr) - { - snd_ctl_close(ctl_); - ctl_ = nullptr; - } - if (mixer_ != nullptr) - { - snd_mixer_close(mixer_); - mixer_ = nullptr; - } - fd_ = nullptr; - elem_ = nullptr; -} - - void AlsaPlayer::start() { - try - { - initAlsa(); - } - catch (const SnapException& e) - { - LOG(ERROR, LOG_TAG) << "Exception: " << e.what() << ", code: " << e.code() << "\n"; - // Accept "Device or ressource busy", the worker loop will retry - if (e.code() != -EBUSY) - throw; - } - + initAlsa(); Player::start(); } @@ -504,7 +206,7 @@ AlsaPlayer::~AlsaPlayer() void AlsaPlayer::stop() { Player::stop(); - uninitAlsa(true); + uninitAlsa(); } @@ -513,36 +215,6 @@ bool AlsaPlayer::needsThread() const return true; } - -bool AlsaPlayer::getAvailDelay(snd_pcm_sframes_t& avail, snd_pcm_sframes_t& delay) -{ - int result = snd_pcm_avail_delay(handle_, &avail, &delay); - if (result < 0) - { - LOG(WARNING, LOG_TAG) << "snd_pcm_avail_delay failed: " << snd_strerror(result) << " (" << result << "), avail: " << avail << ", delay: " << delay - << ", using snd_pcm_avail amd snd_pcm_delay.\n"; - this_thread::sleep_for(1ms); - avail = snd_pcm_avail(handle_); - result = snd_pcm_delay(handle_, &delay); - if ((result < 0) || (delay < 0)) - { - LOG(WARNING, LOG_TAG) << "snd_pcm_delay failed: " << snd_strerror(result) << " (" << result << "), avail: " << avail << ", delay: " << delay - << "\n"; - return false; - } - // LOG(DEBUG, LOG_TAG) << "snd_pcm_delay: " << delay << ", snd_pcm_avail: " << avail << "\n"; - } - - if (avail < 0) - { - LOG(DEBUG, LOG_TAG) << "snd_pcm_avail failed: " << snd_strerror(avail) << " (" << avail << "), using " << frames_ << "\n"; - avail = frames_; - } - - return true; -} - - void AlsaPlayer::worker() { snd_pcm_sframes_t pcm; @@ -550,6 +222,7 @@ void AlsaPlayer::worker() snd_pcm_sframes_t framesAvail; long lastChunkTick = chronos::getTickCount(); const SampleFormat& format = stream_->getFormat(); + while (active_) { if (handle_ == nullptr) @@ -557,56 +230,65 @@ void AlsaPlayer::worker() try { initAlsa(); - // set the hardware volume. It might have changed when we were not initialized - if (settings_.mixer.mode == ClientSettings::Mixer::Mode::hardware) - setHardwareVolume(volume_, muted_); } catch (const std::exception& e) { LOG(ERROR, LOG_TAG) << "Exception in initAlsa: " << e.what() << endl; chronos::sleep(100); } - if (handle_ == nullptr) - continue; } int wait_result = snd_pcm_wait(handle_, 100); if (wait_result == -EPIPE) { - LOG(ERROR, LOG_TAG) << "XRUN while waiting for PCM: " << snd_strerror(wait_result) << "\n"; + LOG(ERROR, LOG_TAG) << "XRUN: " << snd_strerror(wait_result) << "\n"; snd_pcm_prepare(handle_); } else if (wait_result < 0) { LOG(ERROR, LOG_TAG) << "ERROR. Can't wait for PCM to become ready: " << snd_strerror(wait_result) << "\n"; - uninitAlsa(true); - continue; + uninitAlsa(); } else if (wait_result == 0) { continue; } - if (!getAvailDelay(framesAvail, framesDelay)) - { - this_thread::sleep_for(10ms); - snd_pcm_prepare(handle_); - continue; - } - - if (framesAvail < static_cast(frames_)) + int result = snd_pcm_avail_delay(handle_, &framesAvail, &framesDelay); + if (result < 0) { + // if (result == -EPIPE) + // snd_pcm_prepare(handle_); + // else + // uninitAlsa(); + LOG(WARNING, LOG_TAG) << "snd_pcm_avail_delay failed: " << snd_strerror(result) << ", avail: " << framesAvail << ", delay: " << framesDelay + << ", retrying.\n"; this_thread::sleep_for(5ms); - continue; + int result = snd_pcm_avail_delay(handle_, &framesAvail, &framesDelay); + if (result < 0) + { + this_thread::sleep_for(5ms); + LOG(WARNING, LOG_TAG) << "snd_pcm_avail_delay failed again: " << snd_strerror(result) << ", avail: " << framesAvail + << ", delay: " << framesDelay << ", using snd_pcm_avail and snd_pcm_delay.\n"; + framesAvail = snd_pcm_avail(handle_); + result = snd_pcm_delay(handle_, &framesDelay); + if ((result < 0) || (framesAvail <= 0) || (framesDelay <= 0)) + { + LOG(WARNING, LOG_TAG) << "snd_pcm_avail and snd_pcm_delay failed: " << snd_strerror(result) << ", avail: " << framesAvail + << ", delay: " << framesDelay << "\n"; + this_thread::sleep_for(10ms); + snd_pcm_prepare(handle_); + continue; + } + } } - // LOG(TRACE, LOG_TAG) << "res: " << result << ", framesAvail: " << framesAvail << ", delay: " << framesDelay << ", frames: " << frames_ << "\n"; chronos::usec delay(static_cast(1000 * (double)framesDelay / format.msRate())); // LOG(TRACE, LOG_TAG) << "delay: " << framesDelay << ", delay[ms]: " << delay.count() / 1000 << ", avail: " << framesAvail << "\n"; if (buffer_.size() < static_cast(framesAvail * format.frameSize())) { - LOG(DEBUG, LOG_TAG) << "Resizing buffer from " << buffer_.size() << " to " << framesAvail * format.frameSize() << "\n"; + LOG(INFO, LOG_TAG) << "Resizing buffer from " << buffer_.size() << " to " << framesAvail * format.frameSize() << "\n"; buffer_.resize(framesAvail * format.frameSize()); } if (stream_->getPlayerChunk(buffer_.data(), delay, framesAvail)) @@ -615,13 +297,13 @@ void AlsaPlayer::worker() adjustVolume(buffer_.data(), framesAvail); if ((pcm = snd_pcm_writei(handle_, buffer_.data(), framesAvail)) == -EPIPE) { - LOG(ERROR, LOG_TAG) << "XRUN while writing to PCM: " << snd_strerror(pcm) << "\n"; + LOG(ERROR, LOG_TAG) << "XRUN: " << snd_strerror(pcm) << "\n"; snd_pcm_prepare(handle_); } else if (pcm < 0) { LOG(ERROR, LOG_TAG) << "ERROR. Can't write to PCM device: " << snd_strerror(pcm) << "\n"; - uninitAlsa(true); + uninitAlsa(); } } else @@ -633,7 +315,7 @@ void AlsaPlayer::worker() if ((handle_ != nullptr) && (chronos::getTickCount() - lastChunkTick > 5000)) { LOG(NOTICE, LOG_TAG) << "No chunk received for 5000ms. Closing ALSA.\n"; - uninitAlsa(false); + uninitAlsa(); stream_->clearChunks(); } } diff --git a/client/player/alsa_player.hpp b/client/player/alsa_player.hpp index 32219f89..81a90330 100644 --- a/client/player/alsa_player.hpp +++ b/client/player/alsa_player.hpp @@ -16,13 +16,11 @@ along with this program. If not, see . ***/ -#ifndef ALSA_PLAYER_HPP -#define ALSA_PLAYER_HPP +#ifndef ALSA_PLAYER_H +#define ALSA_PLAYER_H #include "player.hpp" - #include -#include namespace player @@ -40,50 +38,24 @@ public: AlsaPlayer(boost::asio::io_context& io_context, const ClientSettings::Player& settings, std::shared_ptr stream); ~AlsaPlayer() override; + /// Set audio volume in range [0..1] void start() override; void stop() override; /// List the system's audio output devices - static std::vector pcm_list(); + static std::vector pcm_list(void); protected: void worker() override; bool needsThread() const override; private: - /// initialize alsa and the mixer (if neccessary) void initAlsa(); - /// free alsa and optionally the mixer - /// @param uninit_mixer free the mixer - void uninitAlsa(bool uninit_mixer); - bool getAvailDelay(snd_pcm_sframes_t& avail, snd_pcm_sframes_t& delay); - - void initMixer(); - void uninitMixer(); - - bool getHardwareVolume(double& volume, bool& muted) override; - void setHardwareVolume(double volume, bool muted) override; - - void waitForEvent(); + void uninitAlsa(); snd_pcm_t* handle_; - snd_ctl_t* ctl_; - - snd_mixer_t* mixer_; - snd_mixer_elem_t* elem_; - std::string mixer_name_; - std::string mixer_device_; - - std::unique_ptr> fd_; std::vector buffer_; snd_pcm_uframes_t frames_; - boost::asio::posix::stream_descriptor sd_; - std::chrono::time_point last_change_; - std::recursive_mutex mutex_; - boost::asio::steady_timer timer_; - - std::chrono::microseconds buffer_time_; - unsigned int periods_; }; } // namespace player diff --git a/server/Makefile b/server/Makefile index 20923cbb..fc3b9a51 100644 --- a/server/Makefile +++ b/server/Makefile @@ -14,7 +14,7 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see . -VERSION = 0.23.100 +VERSION = 0.23.101 BIN = snapserver ifeq ($(TARGET), FREEBSD)