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void-packages/srcpkgs/electron12/files/patches/chromium-sndio.patch

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diff -Naur chromium-83.0.4103.97.orig/media/BUILD.gn chromium-83.0.4103.97/media/BUILD.gn
--- media/BUILD.gn.orig 2020-06-03 20:40:26.000000000 +0200
+++ media/BUILD.gn 2020-06-13 17:32:28.510395975 +0200
@@ -65,6 +65,9 @@
defines += [ "DLOPEN_PULSEAUDIO" ]
}
}
+ if (use_sndio) {
+ defines += [ "USE_SNDIO" ]
+ }
if (use_cras) {
defines += [ "USE_CRAS" ]
}
diff -Naur chromium-83.0.4103.97.orig/media/audio/BUILD.gn chromium-83.0.4103.97/media/audio/BUILD.gn
--- media/audio/BUILD.gn.orig 2020-06-03 20:39:37.000000000 +0200
+++ media/audio/BUILD.gn 2020-06-13 17:32:28.511395969 +0200
@@ -236,6 +236,17 @@
sources += [ "linux/audio_manager_linux.cc" ]
}
+ if (use_sndio) {
+ libs += [ "sndio" ]
+ sources += [
+ "sndio/audio_manager_sndio.cc",
+ "sndio/sndio_input.cc",
+ "sndio/sndio_input.h",
+ "sndio/sndio_output.cc",
+ "sndio/sndio_output.h"
+ ]
+ }
+
if (use_alsa) {
libs += [ "asound" ]
sources += [
diff -Naur chromium-83.0.4103.97.orig/media/audio/linux/audio_manager_linux.cc chromium-83.0.4103.97/media/audio/linux/audio_manager_linux.cc
--- media/audio/linux/audio_manager_linux.cc.orig 2020-06-03 20:39:37.000000000 +0200
+++ media/audio/linux/audio_manager_linux.cc 2020-06-13 18:09:43.623333167 +0200
@@ -19,6 +19,11 @@
#include "media/audio/pulse/audio_manager_pulse.h"
#include "media/audio/pulse/pulse_util.h"
#endif
+#if defined(USE_SNDIO)
+#include "media/audio/sndio/audio_manager_sndio.h"
+#include "media/audio/sndio/sndio_input.h"
+#include "media/audio/sndio/sndio_output.h"
+#endif
namespace media {
@@ -26,7 +31,8 @@
kPulse,
kAlsa,
kCras,
- kAudioIOMax = kCras // Must always be equal to largest logged entry.
+ kSndio,
+ kAudioIOMax = kSndio // Must always be equal to largest logged entry.
};
std::unique_ptr<media::AudioManager> CreateAudioManager(
@@ -39,6 +45,16 @@
audio_log_factory);
}
+#if defined(USE_SNDIO)
+ struct sio_hdl *hdl = sio_open(SIO_DEVANY, SIO_PLAY, 0);
+ if (hdl != NULL) {
+ sio_close(hdl);
+ UMA_HISTOGRAM_ENUMERATION("Media.LinuxAudioIO", kSndio, kAudioIOMax + 1);
+ return std::make_unique<AudioManagerSndio>(std::move(audio_thread),
+ audio_log_factory);
+ }
+#endif
+
#if defined(USE_CRAS)
if (base::CommandLine::ForCurrentProcess()->HasSwitch(switches::kUseCras)) {
UMA_HISTOGRAM_ENUMERATION("Media.LinuxAudioIO", kCras, kAudioIOMax + 1);
diff -Naur chromium-83.0.4103.97.orig/media/audio/sndio/audio_manager_sndio.cc chromium-83.0.4103.97/media/audio/sndio/audio_manager_sndio.cc
--- media/audio/sndio/audio_manager_sndio.cc.orig 1970-01-01 01:00:00.000000000 +0100
+++ media/audio/sndio/audio_manager_sndio.cc 2020-06-13 17:32:28.511395969 +0200
@@ -0,0 +1,148 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "media/audio/sndio/audio_manager_sndio.h"
+
+#include "base/metrics/histogram_macros.h"
+#include "base/memory/ptr_util.h"
+#include "media/audio/audio_device_description.h"
+#include "media/audio/audio_output_dispatcher.h"
+#include "media/audio/sndio/sndio_input.h"
+#include "media/audio/sndio/sndio_output.h"
+#include "media/base/limits.h"
+#include "media/base/media_switches.h"
+
+namespace media {
+
+
+// Maximum number of output streams that can be open simultaneously.
+static const int kMaxOutputStreams = 4;
+
+// Default sample rate for input and output streams.
+static const int kDefaultSampleRate = 48000;
+
+void AddDefaultDevice(AudioDeviceNames* device_names) {
+ DCHECK(device_names->empty());
+ device_names->push_front(AudioDeviceName::CreateDefault());
+}
+
+bool AudioManagerSndio::HasAudioOutputDevices() {
+ return true;
+}
+
+bool AudioManagerSndio::HasAudioInputDevices() {
+ return true;
+}
+
+void AudioManagerSndio::GetAudioInputDeviceNames(
+ AudioDeviceNames* device_names) {
+ DCHECK(device_names->empty());
+ AddDefaultDevice(device_names);
+}
+
+void AudioManagerSndio::GetAudioOutputDeviceNames(
+ AudioDeviceNames* device_names) {
+ AddDefaultDevice(device_names);
+}
+
+const char* AudioManagerSndio::GetName() {
+ return "SNDIO";
+}
+
+AudioParameters AudioManagerSndio::GetInputStreamParameters(
+ const std::string& device_id) {
+ static const int kDefaultInputBufferSize = 1024;
+
+ int user_buffer_size = GetUserBufferSize();
+ int buffer_size = user_buffer_size ?
+ user_buffer_size : kDefaultInputBufferSize;
+
+ return AudioParameters(
+ AudioParameters::AUDIO_PCM_LOW_LATENCY, CHANNEL_LAYOUT_STEREO,
+ kDefaultSampleRate, buffer_size);
+}
+
+AudioManagerSndio::AudioManagerSndio(std::unique_ptr<AudioThread> audio_thread,
+ AudioLogFactory* audio_log_factory)
+ : AudioManagerBase(std::move(audio_thread),
+ audio_log_factory) {
+ DLOG(WARNING) << "AudioManagerSndio";
+ SetMaxOutputStreamsAllowed(kMaxOutputStreams);
+}
+
+AudioManagerSndio::~AudioManagerSndio() {
+ Shutdown();
+}
+
+AudioOutputStream* AudioManagerSndio::MakeLinearOutputStream(
+ const AudioParameters& params,
+ const LogCallback& log_callback) {
+ DCHECK_EQ(AudioParameters::AUDIO_PCM_LINEAR, params.format());
+ return MakeOutputStream(params);
+}
+
+AudioOutputStream* AudioManagerSndio::MakeLowLatencyOutputStream(
+ const AudioParameters& params,
+ const std::string& device_id,
+ const LogCallback& log_callback) {
+ DLOG_IF(ERROR, !device_id.empty()) << "Not implemented!";
+ DCHECK_EQ(AudioParameters::AUDIO_PCM_LOW_LATENCY, params.format());
+ return MakeOutputStream(params);
+}
+
+AudioInputStream* AudioManagerSndio::MakeLinearInputStream(
+ const AudioParameters& params,
+ const std::string& device_id,
+ const LogCallback& log_callback) {
+ DCHECK_EQ(AudioParameters::AUDIO_PCM_LINEAR, params.format());
+ return MakeInputStream(params);
+}
+
+AudioInputStream* AudioManagerSndio::MakeLowLatencyInputStream(
+ const AudioParameters& params,
+ const std::string& device_id,
+ const LogCallback& log_callback) {
+ DCHECK_EQ(AudioParameters::AUDIO_PCM_LOW_LATENCY, params.format());
+ return MakeInputStream(params);
+}
+
+AudioParameters AudioManagerSndio::GetPreferredOutputStreamParameters(
+ const std::string& output_device_id,
+ const AudioParameters& input_params) {
+ // TODO(tommi): Support |output_device_id|.
+ DLOG_IF(ERROR, !output_device_id.empty()) << "Not implemented!";
+ static const int kDefaultOutputBufferSize = 2048;
+
+ ChannelLayout channel_layout = CHANNEL_LAYOUT_STEREO;
+ int sample_rate = kDefaultSampleRate;
+ int buffer_size = kDefaultOutputBufferSize;
+ if (input_params.IsValid()) {
+ sample_rate = input_params.sample_rate();
+ channel_layout = input_params.channel_layout();
+ buffer_size = std::min(buffer_size, input_params.frames_per_buffer());
+ }
+
+ int user_buffer_size = GetUserBufferSize();
+ if (user_buffer_size)
+ buffer_size = user_buffer_size;
+
+ return AudioParameters(
+ AudioParameters::AUDIO_PCM_LOW_LATENCY, channel_layout,
+ sample_rate, buffer_size);
+}
+
+AudioInputStream* AudioManagerSndio::MakeInputStream(
+ const AudioParameters& params) {
+ DLOG(WARNING) << "MakeInputStream";
+ return new SndioAudioInputStream(this,
+ AudioDeviceDescription::kDefaultDeviceId, params);
+}
+
+AudioOutputStream* AudioManagerSndio::MakeOutputStream(
+ const AudioParameters& params) {
+ DLOG(WARNING) << "MakeOutputStream";
+ return new SndioAudioOutputStream(params, this);
+}
+
+} // namespace media
diff -Naur chromium-83.0.4103.97.orig/media/audio/sndio/audio_manager_sndio.h chromium-83.0.4103.97/media/audio/sndio/audio_manager_sndio.h
--- media/audio/sndio/audio_manager_sndio.h.orig 1970-01-01 01:00:00.000000000 +0100
+++ media/audio/sndio/audio_manager_sndio.h 2020-06-13 17:32:28.511395969 +0200
@@ -0,0 +1,65 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_AUDIO_SNDIO_AUDIO_MANAGER_SNDIO_H_
+#define MEDIA_AUDIO_SNDIO_AUDIO_MANAGER_SNDIO_H_
+
+#include <set>
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/threading/thread.h"
+#include "media/audio/audio_manager_base.h"
+
+namespace media {
+
+class MEDIA_EXPORT AudioManagerSndio : public AudioManagerBase {
+ public:
+ AudioManagerSndio(std::unique_ptr<AudioThread> audio_thread,
+ AudioLogFactory* audio_log_factory);
+ ~AudioManagerSndio() override;
+
+ // Implementation of AudioManager.
+ bool HasAudioOutputDevices() override;
+ bool HasAudioInputDevices() override;
+ void GetAudioInputDeviceNames(AudioDeviceNames* device_names) override;
+ void GetAudioOutputDeviceNames(AudioDeviceNames* device_names) override;
+ AudioParameters GetInputStreamParameters(
+ const std::string& device_id) override;
+ const char* GetName() override;
+
+ // Implementation of AudioManagerBase.
+ AudioOutputStream* MakeLinearOutputStream(
+ const AudioParameters& params,
+ const LogCallback& log_callback) override;
+ AudioOutputStream* MakeLowLatencyOutputStream(
+ const AudioParameters& params,
+ const std::string& device_id,
+ const LogCallback& log_callback) override;
+ AudioInputStream* MakeLinearInputStream(
+ const AudioParameters& params,
+ const std::string& device_id,
+ const LogCallback& log_callback) override;
+ AudioInputStream* MakeLowLatencyInputStream(
+ const AudioParameters& params,
+ const std::string& device_id,
+ const LogCallback& log_callback) override;
+
+ protected:
+ AudioParameters GetPreferredOutputStreamParameters(
+ const std::string& output_device_id,
+ const AudioParameters& input_params) override;
+
+ private:
+ // Called by MakeLinearOutputStream and MakeLowLatencyOutputStream.
+ AudioOutputStream* MakeOutputStream(const AudioParameters& params);
+ AudioInputStream* MakeInputStream(const AudioParameters& params);
+
+ DISALLOW_COPY_AND_ASSIGN(AudioManagerSndio);
+};
+
+} // namespace media
+
+#endif // MEDIA_AUDIO_SNDIO_AUDIO_MANAGER_SNDIO_H_
diff -Naur chromium-83.0.4103.97.orig/media/audio/sndio/sndio_input.cc chromium-83.0.4103.97/media/audio/sndio/sndio_input.cc
--- media/audio/sndio/sndio_input.cc.orig 1970-01-01 01:00:00.000000000 +0100
+++ media/audio/sndio/sndio_input.cc 2020-06-13 17:32:28.511395969 +0200
@@ -0,0 +1,200 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/bind.h"
+#include "base/logging.h"
+#include "base/macros.h"
+#include "media/base/audio_timestamp_helper.h"
+#include "media/audio/sndio/audio_manager_sndio.h"
+#include "media/audio/audio_manager.h"
+#include "media/audio/sndio/sndio_input.h"
+
+namespace media {
+
+static const SampleFormat kSampleFormat = kSampleFormatS16;
+
+void SndioAudioInputStream::OnMoveCallback(void *arg, int delta)
+{
+ SndioAudioInputStream* self = static_cast<SndioAudioInputStream*>(arg);
+
+ self->hw_delay += delta;
+}
+
+void *SndioAudioInputStream::ThreadEntry(void *arg) {
+ SndioAudioInputStream* self = static_cast<SndioAudioInputStream*>(arg);
+
+ self->ThreadLoop();
+ return NULL;
+}
+
+SndioAudioInputStream::SndioAudioInputStream(AudioManagerBase* manager,
+ const std::string& device_name,
+ const AudioParameters& params)
+ : manager(manager),
+ params(params),
+ audio_bus(AudioBus::Create(params)),
+ state(kClosed) {
+}
+
+SndioAudioInputStream::~SndioAudioInputStream() {
+ if (state != kClosed)
+ Close();
+}
+
+bool SndioAudioInputStream::Open() {
+ struct sio_par par;
+ int sig;
+
+ if (state != kClosed)
+ return false;
+
+ if (params.format() != AudioParameters::AUDIO_PCM_LINEAR &&
+ params.format() != AudioParameters::AUDIO_PCM_LOW_LATENCY) {
+ LOG(WARNING) << "Unsupported audio format.";
+ return false;
+ }
+
+ sio_initpar(&par);
+ par.rate = params.sample_rate();
+ par.rchan = params.channels();
+ par.bits = SampleFormatToBitsPerChannel(kSampleFormat);
+ par.bps = par.bits / 8;
+ par.sig = sig = par.bits != 8 ? 1 : 0;
+ par.le = SIO_LE_NATIVE;
+ par.appbufsz = params.frames_per_buffer();
+
+ hdl = sio_open(SIO_DEVANY, SIO_REC, 0);
+
+ if (hdl == NULL) {
+ LOG(ERROR) << "Couldn't open audio device.";
+ return false;
+ }
+
+ if (!sio_setpar(hdl, &par) || !sio_getpar(hdl, &par)) {
+ LOG(ERROR) << "Couldn't set audio parameters.";
+ goto bad_close;
+ }
+
+ if (par.rate != (unsigned int)params.sample_rate() ||
+ par.rchan != (unsigned int)params.channels() ||
+ par.bits != (unsigned int)SampleFormatToBitsPerChannel(kSampleFormat) ||
+ par.sig != (unsigned int)sig ||
+ (par.bps > 1 && par.le != SIO_LE_NATIVE) ||
+ (par.bits != par.bps * 8)) {
+ LOG(ERROR) << "Unsupported audio parameters.";
+ goto bad_close;
+ }
+ state = kStopped;
+ buffer = new char[audio_bus->frames() * params.GetBytesPerFrame(kSampleFormat)];
+ sio_onmove(hdl, &OnMoveCallback, this);
+ return true;
+bad_close:
+ sio_close(hdl);
+ return false;
+}
+
+void SndioAudioInputStream::Start(AudioInputCallback* cb) {
+
+ StartAgc();
+
+ state = kRunning;
+ hw_delay = 0;
+ callback = cb;
+ sio_start(hdl);
+ if (pthread_create(&thread, NULL, &ThreadEntry, this) != 0) {
+ LOG(ERROR) << "Failed to create real-time thread for recording.";
+ sio_stop(hdl);
+ state = kStopped;
+ }
+}
+
+void SndioAudioInputStream::Stop() {
+
+ if (state == kStopped)
+ return;
+
+ state = kStopWait;
+ pthread_join(thread, NULL);
+ sio_stop(hdl);
+ state = kStopped;
+
+ StopAgc();
+}
+
+void SndioAudioInputStream::Close() {
+
+ if (state == kClosed)
+ return;
+
+ if (state == kRunning)
+ Stop();
+
+ state = kClosed;
+ delete [] buffer;
+ sio_close(hdl);
+
+ manager->ReleaseInputStream(this);
+}
+
+double SndioAudioInputStream::GetMaxVolume() {
+ // Not supported
+ return 0.0;
+}
+
+void SndioAudioInputStream::SetVolume(double volume) {
+ // Not supported. Do nothing.
+}
+
+double SndioAudioInputStream::GetVolume() {
+ // Not supported.
+ return 0.0;
+}
+
+bool SndioAudioInputStream::IsMuted() {
+ // Not supported.
+ return false;
+}
+
+void SndioAudioInputStream::SetOutputDeviceForAec(
+ const std::string& output_device_id) {
+ // Not supported.
+}
+
+void SndioAudioInputStream::ThreadLoop(void) {
+ size_t todo, n;
+ char *data;
+ unsigned int nframes;
+ double normalized_volume = 0.0;
+
+ nframes = audio_bus->frames();
+
+ while (state == kRunning && !sio_eof(hdl)) {
+
+ GetAgcVolume(&normalized_volume);
+
+ // read one block
+ todo = nframes * params.GetBytesPerFrame(kSampleFormat);
+ data = buffer;
+ while (todo > 0) {
+ n = sio_read(hdl, data, todo);
+ if (n == 0)
+ return; // unrecoverable I/O error
+ todo -= n;
+ data += n;
+ }
+ hw_delay -= nframes;
+
+ // convert frames count to TimeDelta
+ const base::TimeDelta delay = AudioTimestampHelper::FramesToTime(hw_delay,
+ params.sample_rate());
+
+ // push into bus
+ audio_bus->FromInterleaved(buffer, nframes, SampleFormatToBytesPerChannel(kSampleFormat));
+
+ // invoke callback
+ callback->OnData(audio_bus.get(), base::TimeTicks::Now() - delay, 1.);
+ }
+}
+
+} // namespace media
diff -Naur chromium-83.0.4103.97.orig/media/audio/sndio/sndio_input.h chromium-83.0.4103.97/media/audio/sndio/sndio_input.h
--- media/audio/sndio/sndio_input.h.orig 1970-01-01 01:00:00.000000000 +0100
+++ media/audio/sndio/sndio_input.h 2020-06-13 17:32:28.511395969 +0200
@@ -0,0 +1,91 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_AUDIO_SNDIO_SNDIO_INPUT_H_
+#define MEDIA_AUDIO_SNDIO_SNDIO_INPUT_H_
+
+#include <stdint.h>
+#include <string>
+#include <sndio.h>
+
+#include "base/compiler_specific.h"
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "base/time/time.h"
+#include "media/audio/agc_audio_stream.h"
+#include "media/audio/audio_io.h"
+#include "media/audio/audio_device_description.h"
+#include "media/base/audio_parameters.h"
+
+namespace media {
+
+class AudioManagerBase;
+
+// Implementation of AudioOutputStream using sndio(7)
+class SndioAudioInputStream : public AgcAudioStream<AudioInputStream> {
+ public:
+ // Pass this to the constructor if you want to attempt auto-selection
+ // of the audio recording device.
+ static const char kAutoSelectDevice[];
+
+ // Create a PCM Output stream for the SNDIO device identified by
+ // |device_name|. If unsure of what to use for |device_name|, use
+ // |kAutoSelectDevice|.
+ SndioAudioInputStream(AudioManagerBase* audio_manager,
+ const std::string& device_name,
+ const AudioParameters& params);
+
+ ~SndioAudioInputStream() override;
+
+ // Implementation of AudioInputStream.
+ bool Open() override;
+ void Start(AudioInputCallback* callback) override;
+ void Stop() override;
+ void Close() override;
+ double GetMaxVolume() override;
+ void SetVolume(double volume) override;
+ double GetVolume() override;
+ bool IsMuted() override;
+ void SetOutputDeviceForAec(const std::string& output_device_id) override;
+
+ private:
+
+ enum StreamState {
+ kClosed, // Not opened yet
+ kStopped, // Device opened, but not started yet
+ kRunning, // Started, device playing
+ kStopWait // Stopping, waiting for the real-time thread to exit
+ };
+
+ // C-style call-backs
+ static void OnMoveCallback(void *arg, int delta);
+ static void* ThreadEntry(void *arg);
+
+ // Continuously moves data from the device to the consumer
+ void ThreadLoop();
+ // Our creator, the audio manager needs to be notified when we close.
+ AudioManagerBase* manager;
+ // Parameters of the source
+ AudioParameters params;
+ // We store data here for consumer
+ std::unique_ptr<AudioBus> audio_bus;
+ // Call-back that consumes recorded data
+ AudioInputCallback* callback; // Valid during a recording session.
+ // Handle of the audio device
+ struct sio_hdl* hdl;
+ // Current state of the stream
+ enum StreamState state;
+ // High priority thread running ThreadLoop()
+ pthread_t thread;
+ // Number of frames buffered in the hardware
+ int hw_delay;
+ // Temporary buffer where data is stored sndio-compatible format
+ char* buffer;
+
+ DISALLOW_COPY_AND_ASSIGN(SndioAudioInputStream);
+};
+
+} // namespace media
+
+#endif // MEDIA_AUDIO_SNDIO_SNDIO_INPUT_H_
diff -Naur chromium-83.0.4103.97.orig/media/audio/sndio/sndio_output.cc chromium-83.0.4103.97/media/audio/sndio/sndio_output.cc
--- media/audio/sndio/sndio_output.cc.orig 1970-01-01 01:00:00.000000000 +0100
+++ media/audio/sndio/sndio_output.cc 2020-06-13 17:32:28.511395969 +0200
@@ -0,0 +1,183 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/logging.h"
+#include "base/time/time.h"
+#include "base/time/default_tick_clock.h"
+#include "media/audio/audio_manager_base.h"
+#include "media/base/audio_timestamp_helper.h"
+#include "media/audio/sndio/sndio_output.h"
+
+namespace media {
+
+static const SampleFormat kSampleFormat = kSampleFormatS16;
+
+void SndioAudioOutputStream::OnMoveCallback(void *arg, int delta) {
+ SndioAudioOutputStream* self = static_cast<SndioAudioOutputStream*>(arg);
+
+ self->hw_delay -= delta;
+}
+
+void SndioAudioOutputStream::OnVolCallback(void *arg, unsigned int vol) {
+ SndioAudioOutputStream* self = static_cast<SndioAudioOutputStream*>(arg);
+
+ self->vol = vol;
+}
+
+void *SndioAudioOutputStream::ThreadEntry(void *arg) {
+ SndioAudioOutputStream* self = static_cast<SndioAudioOutputStream*>(arg);
+
+ self->ThreadLoop();
+ return NULL;
+}
+
+SndioAudioOutputStream::SndioAudioOutputStream(const AudioParameters& params,
+ AudioManagerBase* manager)
+ : manager(manager),
+ params(params),
+ audio_bus(AudioBus::Create(params)),
+ state(kClosed),
+ mutex(PTHREAD_MUTEX_INITIALIZER) {
+}
+
+SndioAudioOutputStream::~SndioAudioOutputStream() {
+ if (state != kClosed)
+ Close();
+}
+
+bool SndioAudioOutputStream::Open() {
+ struct sio_par par;
+ int sig;
+
+ if (params.format() != AudioParameters::AUDIO_PCM_LINEAR &&
+ params.format() != AudioParameters::AUDIO_PCM_LOW_LATENCY) {
+ LOG(WARNING) << "Unsupported audio format.";
+ return false;
+ }
+ sio_initpar(&par);
+ par.rate = params.sample_rate();
+ par.pchan = params.channels();
+ par.bits = SampleFormatToBitsPerChannel(kSampleFormat);
+ par.bps = par.bits / 8;
+ par.sig = sig = par.bits != 8 ? 1 : 0;
+ par.le = SIO_LE_NATIVE;
+ par.appbufsz = params.frames_per_buffer();
+
+ hdl = sio_open(SIO_DEVANY, SIO_PLAY, 0);
+ if (hdl == NULL) {
+ LOG(ERROR) << "Couldn't open audio device.";
+ return false;
+ }
+ if (!sio_setpar(hdl, &par) || !sio_getpar(hdl, &par)) {
+ LOG(ERROR) << "Couldn't set audio parameters.";
+ goto bad_close;
+ }
+ if (par.rate != (unsigned int)params.sample_rate() ||
+ par.pchan != (unsigned int)params.channels() ||
+ par.bits != (unsigned int)SampleFormatToBitsPerChannel(kSampleFormat) ||
+ par.sig != (unsigned int)sig ||
+ (par.bps > 1 && par.le != SIO_LE_NATIVE) ||
+ (par.bits != par.bps * 8)) {
+ LOG(ERROR) << "Unsupported audio parameters.";
+ goto bad_close;
+ }
+ state = kStopped;
+ volpending = 0;
+ vol = 0;
+ buffer = new char[audio_bus->frames() * params.GetBytesPerFrame(kSampleFormat)];
+ sio_onmove(hdl, &OnMoveCallback, this);
+ sio_onvol(hdl, &OnVolCallback, this);
+ return true;
+ bad_close:
+ sio_close(hdl);
+ return false;
+}
+
+void SndioAudioOutputStream::Close() {
+ if (state == kClosed)
+ return;
+ if (state == kRunning)
+ Stop();
+ state = kClosed;
+ delete [] buffer;
+ sio_close(hdl);
+ manager->ReleaseOutputStream(this); // Calls the destructor
+}
+
+void SndioAudioOutputStream::Start(AudioSourceCallback* callback) {
+ state = kRunning;
+ hw_delay = 0;
+ source = callback;
+ sio_start(hdl);
+ if (pthread_create(&thread, NULL, &ThreadEntry, this) != 0) {
+ LOG(ERROR) << "Failed to create real-time thread.";
+ sio_stop(hdl);
+ state = kStopped;
+ }
+}
+
+void SndioAudioOutputStream::Stop() {
+ if (state == kStopped)
+ return;
+ state = kStopWait;
+ pthread_join(thread, NULL);
+ sio_stop(hdl);
+ state = kStopped;
+}
+
+void SndioAudioOutputStream::SetVolume(double v) {
+ pthread_mutex_lock(&mutex);
+ vol = v * SIO_MAXVOL;
+ volpending = 1;
+ pthread_mutex_unlock(&mutex);
+}
+
+void SndioAudioOutputStream::GetVolume(double* v) {
+ pthread_mutex_lock(&mutex);
+ *v = vol * (1. / SIO_MAXVOL);
+ pthread_mutex_unlock(&mutex);
+}
+
+// This stream is always used with sub second buffer sizes, where it's
+// sufficient to simply always flush upon Start().
+void SndioAudioOutputStream::Flush() {}
+
+void SndioAudioOutputStream::ThreadLoop(void) {
+ int avail, count, result;
+
+ while (state == kRunning) {
+ // Update volume if needed
+ pthread_mutex_lock(&mutex);
+ if (volpending) {
+ volpending = 0;
+ sio_setvol(hdl, vol);
+ }
+ pthread_mutex_unlock(&mutex);
+
+ // Get data to play
+ const base::TimeDelta delay = AudioTimestampHelper::FramesToTime(hw_delay,
+ params.sample_rate());
+ count = source->OnMoreData(delay, base::TimeTicks::Now(), 0, audio_bus.get());
+ audio_bus->ToInterleaved(count, SampleFormatToBytesPerChannel(kSampleFormat), buffer);
+ if (count == 0) {
+ // We have to submit something to the device
+ count = audio_bus->frames();
+ memset(buffer, 0, count * params.GetBytesPerFrame(kSampleFormat));
+ LOG(WARNING) << "No data to play, running empty cycle.";
+ }
+
+ // Submit data to the device
+ avail = count * params.GetBytesPerFrame(kSampleFormat);
+ result = sio_write(hdl, buffer, avail);
+ if (result == 0) {
+ LOG(WARNING) << "Audio device disconnected.";
+ break;
+ }
+
+ // Update hardware pointer
+ hw_delay += count;
+ }
+}
+
+} // namespace media
diff -Naur chromium-83.0.4103.97.orig/media/audio/sndio/sndio_output.h chromium-83.0.4103.97/media/audio/sndio/sndio_output.h
--- media/audio/sndio/sndio_output.h.orig 1970-01-01 01:00:00.000000000 +0100
+++ media/audio/sndio/sndio_output.h 2020-06-13 17:32:28.511395969 +0200
@@ -0,0 +1,86 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MEDIA_AUDIO_SNDIO_SNDIO_OUTPUT_H_
+#define MEDIA_AUDIO_SNDIO_SNDIO_OUTPUT_H_
+
+#include <pthread.h>
+#include <sndio.h>
+
+#include "base/time/tick_clock.h"
+#include "base/time/time.h"
+#include "media/audio/audio_io.h"
+
+namespace media {
+
+class AudioManagerBase;
+
+// Implementation of AudioOutputStream using sndio(7)
+class SndioAudioOutputStream : public AudioOutputStream {
+ public:
+ // The manager is creating this object
+ SndioAudioOutputStream(const AudioParameters& params,
+ AudioManagerBase* manager);
+ virtual ~SndioAudioOutputStream();
+
+ // Implementation of AudioOutputStream.
+ bool Open() override;
+ void Close() override;
+ void Start(AudioSourceCallback* callback) override;
+ void Stop() override;
+ void SetVolume(double volume) override;
+ void GetVolume(double* volume) override;
+ void Flush() override;
+
+ friend void sndio_onmove(void *arg, int delta);
+ friend void sndio_onvol(void *arg, unsigned int vol);
+ friend void *sndio_threadstart(void *arg);
+
+ private:
+ enum StreamState {
+ kClosed, // Not opened yet
+ kStopped, // Device opened, but not started yet
+ kRunning, // Started, device playing
+ kStopWait // Stopping, waiting for the real-time thread to exit
+ };
+
+ // C-style call-backs
+ static void OnMoveCallback(void *arg, int delta);
+ static void OnVolCallback(void *arg, unsigned int vol);
+ static void* ThreadEntry(void *arg);
+
+ // Continuously moves data from the producer to the device
+ void ThreadLoop(void);
+
+ // Our creator, the audio manager needs to be notified when we close.
+ AudioManagerBase* manager;
+ // Parameters of the source
+ AudioParameters params;
+ // Source stores data here
+ std::unique_ptr<AudioBus> audio_bus;
+ // Call-back that produces data to play
+ AudioSourceCallback* source;
+ // Handle of the audio device
+ struct sio_hdl* hdl;
+ // Current state of the stream
+ enum StreamState state;
+ // High priority thread running ThreadLoop()
+ pthread_t thread;
+ // Protects vol, volpending and hw_delay
+ pthread_mutex_t mutex;
+ // Current volume in the 0..SIO_MAXVOL range
+ int vol;
+ // Set to 1 if volumes must be refreshed in the realtime thread
+ int volpending;
+ // Number of frames buffered in the hardware
+ int hw_delay;
+ // Temporary buffer where data is stored sndio-compatible format
+ char* buffer;
+
+ DISALLOW_COPY_AND_ASSIGN(SndioAudioOutputStream);
+};
+
+} // namespace media
+
+#endif // MEDIA_AUDIO_SNDIO_SNDIO_OUTPUT_H_
diff -Naur chromium-83.0.4103.97.orig/media/media_options.gni chromium-83.0.4103.97/media/media_options.gni
--- media/media_options.gni.orig 2020-06-03 20:40:26.000000000 +0200
+++ media/media_options.gni 2020-06-13 17:32:28.512395963 +0200
@@ -119,6 +119,9 @@
# Enables runtime selection of ALSA library for audio.
use_alsa = false
+ # Enable runtime selection of sndio(7)
+ use_sndio = false
+
# Alsa should be used on non-Android, non-Mac POSIX systems.
# Alsa should be used on desktop Chromecast and audio-only Chromecast builds.
if (is_posix && !is_android && !is_mac &&
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