9ad5184453
Build cross platform desktop apps with JavaScript, HTML, and CSS. It's easier than you think. If you can build a website, you can build a desktop app. Electron is a framework for creating native applications with web technologies like JavaScript, HTML, and CSS. It takes care of the hard parts so you can focus on the core of your application. WWW: https://electronjs.org/
94 lines
3.1 KiB
C++
94 lines
3.1 KiB
C++
--- media/audio/sndio/sndio_input.h.orig 2022-02-07 13:39:41 UTC
|
|
+++ media/audio/sndio/sndio_input.h
|
|
@@ -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/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(const SndioAudioInputStream&) = delete;
|
|
+ SndioAudioInputStream& operator=(const SndioAudioInputStream&) = delete;
|
|
+
|
|
+ ~SndioAudioInputStream() override;
|
|
+
|
|
+ // Implementation of AudioInputStream.
|
|
+ OpenOutcome 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;
|
|
+};
|
|
+
|
|
+} // namespace media
|
|
+
|
|
+#endif // MEDIA_AUDIO_SNDIO_SNDIO_INPUT_H_
|