1 files changed, 191 insertions, 0 deletions
diff --git a/devel/electron38/files/patch-media_audio_sndio_sndio__output.cc b/devel/electron38/files/patch-media_audio_sndio_sndio__output.cc
new file mode 100644
index 000000000000..3d7dbef6dad9
--- /dev/null
+++ b/devel/electron38/files/patch-media_audio_sndio_sndio__output.cc
@@ -0,0 +1,191 @@
+--- media/audio/sndio/sndio_output.cc.orig	2025-09-10 14:34:08 UTC
++++ media/audio/sndio/sndio_output.cc
+@@ -0,0 +1,188 @@
++// 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_sample_types.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() {
++  if (params.format() != AudioParameters::AUDIO_PCM_LINEAR &&
++      params.format() != AudioParameters::AUDIO_PCM_LOW_LATENCY) {
++    LOG(WARNING) << "Unsupported audio format.";
++    return false;
++  }
++  state = kStopped;
++  volpending = 0;
++  vol = SIO_MAXVOL;
++  buffer = new char[audio_bus->frames() * params.GetBytesPerFrame(kSampleFormat)];
++  return true;
++}
++
++void SndioAudioOutputStream::Close() {
++  if (state == kClosed)
++    goto release;
++  if (state == kRunning)
++    Stop();
++  state = kClosed;
++  delete [] buffer;
++release:
++  manager->ReleaseOutputStream(this);  // Calls the destructor
++}
++
++void SndioAudioOutputStream::Start(AudioSourceCallback* callback) {
++  struct sio_par par;
++  int sig;
++
++  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;
++  }
++  if (!sio_setpar(hdl, &par) || !sio_getpar(hdl, &par)) {
++    LOG(ERROR) << "Couldn't set audio parameters.";
++    sio_close(hdl);
++    return;
++  }
++  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.";
++    sio_close(hdl);
++    return;
++  }
++
++  sio_onmove(hdl, &OnMoveCallback, this);
++  sio_onvol(hdl, &OnVolCallback, this);
++
++  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);
++    sio_close(hdl);
++    state = kStopped;
++  }
++}
++
++void SndioAudioOutputStream::Stop() {
++  if (state == kStopped)
++    return;
++  state = kStopWait;
++  pthread_join(thread, NULL);
++  sio_stop(hdl);
++  sio_close(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(), {}, audio_bus.get());
++    audio_bus->ToInterleaved<SignedInt16SampleTypeTraits>(count, reinterpret_cast<int16_t*>(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