3 changed files with 265 additions and 1 deletions
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package com.utun.chat.data |
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import android.media.AudioAttributes |
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import android.media.AudioDeviceInfo |
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import android.media.AudioFormat |
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import android.media.AudioManager |
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import android.media.AudioRouting |
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import android.media.AudioTimestamp |
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import android.media.AudioTrack |
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import android.os.Build |
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import android.os.Handler |
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/** Один выход без промежуточной PCM-очереди. I/O и close сериализованы; владелец — playback worker. */ |
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internal class CallAudioOutput private constructor( |
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val track: AudioTrack?, private var handle: Long, private val manager: AudioManager |
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) { |
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val fast = handle != 0L |
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val name = if (fast) "AAudio" else "AudioTrack" |
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private val sample = LongArray(10) |
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private var accepted = 0L |
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private var closed = false |
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val playState: Int get() = track?.playState ?: if (closed) AudioTrack.PLAYSTATE_STOPPED else AudioTrack.PLAYSTATE_PLAYING |
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val bufferSizeInFrames: Int get() = track?.bufferSizeInFrames ?: sample[4].toInt() |
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val bufferCapacityInFrames: Int get() = track?.bufferCapacityInFrames ?: sample[5].toInt() |
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val underrunCount: Int get() = track?.underrunCount ?: sample[3].toInt() |
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val performanceMode: Int get() = track?.performanceMode ?: AudioTrack.PERFORMANCE_MODE_LOW_LATENCY |
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val startThresholdInFrames: Int get() = if (track != null && Build.VERSION.SDK_INT >= 31) track.startThresholdInFrames else bufferSizeInFrames |
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val routedDevice: AudioDeviceInfo? get() = track?.routedDevice ?: |
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manager.getDevices(AudioManager.GET_DEVICES_OUTPUTS).firstOrNull { it.id.toLong() == sample[6] } |
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@Synchronized fun play() { check(!closed); track?.play() } |
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@Synchronized fun pause() { if (!closed) track?.pause() } |
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@Synchronized fun write(pcm: ShortArray, offset: Int, count: Int): Int { |
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check(!closed) |
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val n = track?.write(pcm, offset, count, AudioTrack.WRITE_NON_BLOCKING) ?: CallOutputNative.write(handle, pcm, offset, count) |
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if (n > 0) accepted += n |
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return n |
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} |
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val playbackHeadPosition: Int @Synchronized get() = track?.playbackHeadPosition ?: |
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CallOutputNative.head(handle).coerceIn(0, accepted).toInt() |
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@Synchronized fun getTimestamp(stamp: AudioTimestamp): Boolean { |
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if (closed) return false |
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track?.let { return it.getTimestamp(stamp) } |
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CallOutputNative.sample(handle, sample) |
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if (sample[1] < 0 || sample[2] < 0) return false |
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stamp.framePosition = sample[1]; stamp.nanoTime = sample[2] |
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return true |
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} |
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@Synchronized fun setBufferSizeInFrames(frames: Int): Int { |
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check(!closed) |
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track?.let { return it.setBufferSizeInFrames(frames) } |
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val actual = CallOutputNative.buffer(handle, frames) |
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CallOutputNative.sample(handle, sample) |
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return actual |
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} |
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@Synchronized fun setStartThresholdInFrames(frames: Int): Int = |
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if (track != null && Build.VERSION.SDK_INT >= 31) track.setStartThresholdInFrames(frames) else frames |
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@Synchronized fun setPreferredDevice(device: AudioDeviceInfo?): Boolean = track?.setPreferredDevice(device) ?: true |
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fun addOnRoutingChangedListener(listener: AudioRouting.OnRoutingChangedListener, handler: Handler) { |
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track?.addOnRoutingChangedListener(listener, handler) |
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} |
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fun removeOnRoutingChangedListener(listener: AudioRouting.OnRoutingChangedListener) { |
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track?.removeOnRoutingChangedListener(listener) |
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} |
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@Synchronized fun release() { |
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if (closed) return |
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closed = true |
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if (handle != 0L) { CallOutputNative.close(handle); handle = 0 } |
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track?.release() |
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} |
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companion object { |
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fun open(manager: AudioManager, deviceId: Int, tryFast: Boolean): CallAudioOutput { |
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if (tryFast && Build.VERSION.SDK_INT >= 31) { |
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val handle = CallOutputNative.open(deviceId) |
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if (handle != 0L) return CallAudioOutput(null, handle, manager).also { CallOutputNative.sample(handle, it.sample) } |
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} |
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val min = AudioTrack.getMinBufferSize(48000, AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT) |
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check(min > 0) { "AudioTrack minimum=$min" } |
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val track = AudioTrack.Builder() |
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.setAudioAttributes(AudioAttributes.Builder().setUsage(AudioAttributes.USAGE_VOICE_COMMUNICATION) |
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.setContentType(AudioAttributes.CONTENT_TYPE_SPEECH).build()) |
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.setAudioFormat(AudioFormat.Builder().setSampleRate(48000).setEncoding(AudioFormat.ENCODING_PCM_16BIT) |
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.setChannelMask(AudioFormat.CHANNEL_OUT_MONO).build()) |
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.setBufferSizeInBytes((min * 2).coerceAtLeast(3840)).setTransferMode(AudioTrack.MODE_STREAM) |
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.setPerformanceMode(AudioTrack.PERFORMANCE_MODE_LOW_LATENCY).build() |
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if (track.state != AudioTrack.STATE_INITIALIZED) { track.release(); error("AudioTrack not initialized") } |
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LogManager.addLog("INFO", "CallAudio", "output fallback=AudioTrack device=$deviceId tryFast=$tryFast") |
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return CallAudioOutput(track, 0, manager) |
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} |
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} |
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} |
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internal object CallOutputNative { |
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init { System.loadLibrary("utun") } |
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external fun open(deviceId: Int): Long |
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external fun write(handle: Long, pcm: ShortArray, offset: Int, count: Int): Int |
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external fun head(handle: Long): Long |
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external fun sample(handle: Long, out: LongArray) |
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external fun buffer(handle: Long, frames: Int): Int |
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external fun close(handle: Long) |
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external fun suspendClock(id: Long, epoch: Long) |
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} |
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/* AAudio I/O без дополнительной PCM-очереди. Kotlin сериализует операции одного handle.
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* write передаёт по аппаратному периоду: blocking pacing AAudio держит заданный запас, |
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* NON_BLOCKING способен заполнить всю ёмкость MMAP независимо от рабочего bufferSize. */ |
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#include <aaudio/AAudio.h> |
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#include <jni.h> |
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#include <dlfcn.h> |
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#include <stdint.h> |
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#include <time.h> |
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#include "debug_config.h" |
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#include "mem.h" |
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#include "call/call_audio.h" |
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struct call_output { |
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AAudioStream* stream; |
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int burst; |
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int error; |
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}; |
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static int64_t monotonic_ns(void) { |
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struct timespec now; |
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clock_gettime(CLOCK_MONOTONIC, &now); |
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return (int64_t)now.tv_sec * 1000000000 + now.tv_nsec; |
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} |
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static void output_error(const char* operation, int result) { |
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DEBUG_WARN(DEBUG_CATEGORY_CALL, "AAudio %s result=%d reason=%s", operation, result, AAudio_convertResultToText(result)); |
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} |
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JNIEXPORT jlong JNICALL Java_com_utun_chat_data_CallOutputNative_open(JNIEnv* env, jobject self, jint device) { |
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(void)env; (void)self; |
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/* Речевые атрибуты появились в API 28; libutun загружается также на API 26. */ |
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void (*set_usage)(AAudioStreamBuilder*, aaudio_usage_t) = dlsym(RTLD_DEFAULT, "AAudioStreamBuilder_setUsage"); |
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void (*set_content)(AAudioStreamBuilder*, aaudio_content_type_t) = dlsym(RTLD_DEFAULT, "AAudioStreamBuilder_setContentType"); |
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if (!set_usage || !set_content) { |
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DEBUG_INFO(DEBUG_CATEGORY_CALL, "AAudio unavailable: voice attributes missing"); return 0; |
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} |
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AAudioStreamBuilder* builder = NULL; |
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int result = AAudio_createStreamBuilder(&builder); |
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if (result < 0) { output_error("builder", result); return 0; } |
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AAudioStreamBuilder_setDirection(builder, AAUDIO_DIRECTION_OUTPUT); |
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AAudioStreamBuilder_setSampleRate(builder, 48000); |
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AAudioStreamBuilder_setChannelCount(builder, 1); |
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AAudioStreamBuilder_setFormat(builder, AAUDIO_FORMAT_PCM_I16); |
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AAudioStreamBuilder_setPerformanceMode(builder, AAUDIO_PERFORMANCE_MODE_LOW_LATENCY); |
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AAudioStreamBuilder_setSharingMode(builder, AAUDIO_SHARING_MODE_EXCLUSIVE); |
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if (device > 0) AAudioStreamBuilder_setDeviceId(builder, device); |
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set_usage(builder, AAUDIO_USAGE_VOICE_COMMUNICATION); |
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set_content(builder, AAUDIO_CONTENT_TYPE_SPEECH); |
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AAudioStream* stream = NULL; |
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result = AAudioStreamBuilder_openStream(builder, &stream); |
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int deleted = AAudioStreamBuilder_delete(builder); |
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if (deleted < 0) output_error("builder delete", deleted); |
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if (result < 0) { output_error("open", result); return 0; } |
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int burst = AAudioStream_getFramesPerBurst(stream); |
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int performance = AAudioStream_getPerformanceMode(stream); |
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bool (*is_mmap)(AAudioStream*) = dlsym(RTLD_DEFAULT, "AAudioStream_isMMapUsed"); |
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int accepted = performance == AAUDIO_PERFORMANCE_MODE_LOW_LATENCY && burst > 0 && burst <= 480 && |
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AAudioStream_getSampleRate(stream) == 48000 && AAudioStream_getChannelCount(stream) == 1 && |
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AAudioStream_getFormat(stream) == AAUDIO_FORMAT_PCM_I16 && |
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(device <= 0 || AAudioStream_getDeviceId(stream) == device); |
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DEBUG_INFO(DEBUG_CATEGORY_CALL, "AAudio candidate accepted=%d device=%d requested=%d rate=%d channels=%d " |
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"performance=%d sharing=%d mmap=%d burst=%d capacity=%d", accepted, AAudioStream_getDeviceId(stream), device, |
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AAudioStream_getSampleRate(stream), AAudioStream_getChannelCount(stream), performance, |
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AAudioStream_getSharingMode(stream), is_mmap ? is_mmap(stream) : -1, burst, AAudioStream_getBufferCapacityInFrames(stream)); |
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if (accepted) { |
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result = AAudioStream_setBufferSizeInFrames(stream, 960); |
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if (result <= 0) { output_error("buffer", result); accepted = 0; } |
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} |
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if (accepted) { |
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result = AAudioStream_requestStart(stream); |
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if (result < 0) { output_error("start", result); accepted = 0; } |
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} |
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if (!accepted) { |
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result = AAudioStream_close(stream); |
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if (result < 0) output_error("close rejected", result); |
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return 0; |
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} |
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struct call_output* output = u_calloc(1, sizeof(*output)); |
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if (!output) { |
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DEBUG_ERROR(DEBUG_CATEGORY_CALL, "AAudio allocation failed"); |
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result = AAudioStream_close(stream); |
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if (result < 0) output_error("close allocation failure", result); |
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return 0; |
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} |
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output->stream = stream; output->burst = burst; |
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return (jlong)(intptr_t)output; |
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} |
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JNIEXPORT jint JNICALL Java_com_utun_chat_data_CallOutputNative_write( |
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JNIEnv* env, jobject self, jlong handle, jshortArray input, jint offset, jint count) { |
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(void)self; |
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struct call_output* output = (struct call_output*)(intptr_t)handle; |
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if (!output || !input || offset < 0 || count <= 0 || count > 960 || offset > (*env)->GetArrayLength(env, input) - count) { |
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DEBUG_ERROR(DEBUG_CATEGORY_CALL, "AAudio invalid write offset=%d count=%d", offset, count); return AAUDIO_ERROR_ILLEGAL_ARGUMENT; |
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} |
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if (output->error) return output->error; |
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int16_t pcm[960]; |
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(*env)->GetShortArrayRegion(env, input, offset, count, pcm); |
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if ((*env)->ExceptionCheck(env)) { DEBUG_ERROR(DEBUG_CATEGORY_CALL, "AAudio JNI PCM copy failed"); return AAUDIO_ERROR_INTERNAL; } |
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int accepted = 0; |
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int64_t deadline = monotonic_ns() + 100000000; |
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while (accepted < count) { |
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int64_t timeout = deadline - monotonic_ns(); |
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if (timeout <= 0) break; |
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int n = count - accepted < output->burst ? count - accepted : output->burst; |
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int result = AAudioStream_write(output->stream, pcm + accepted, n, timeout); |
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if (result < 0) { output_error("write", result); output->error = result; return accepted ? accepted : result; } |
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if (!result) break; |
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accepted += result; |
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} |
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return accepted; |
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} |
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JNIEXPORT jlong JNICALL Java_com_utun_chat_data_CallOutputNative_head(JNIEnv* env, jobject self, jlong handle) { |
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(void)env; (void)self; |
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struct call_output* output = (struct call_output*)(intptr_t)handle; |
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if (!output) { DEBUG_ERROR(DEBUG_CATEGORY_CALL, "AAudio head without output"); return -1; } |
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return AAudioStream_getFramesRead(output->stream); |
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} |
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/* head, timestamp frame/ns, underruns, buffer, capacity, device, performance, error, written. */ |
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JNIEXPORT void JNICALL Java_com_utun_chat_data_CallOutputNative_sample(JNIEnv* env, jobject self, jlong handle, jlongArray out) { |
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(void)self; |
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struct call_output* output = (struct call_output*)(intptr_t)handle; |
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if (!output || !out || (*env)->GetArrayLength(env, out) != 10) { |
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DEBUG_ERROR(DEBUG_CATEGORY_CALL, "AAudio invalid sample"); return; |
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} |
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AAudioStream* s = output->stream; |
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int64_t frame = -1, ns = -1; |
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int result = AAudioStream_getTimestamp(s, CLOCK_MONOTONIC, &frame, &ns); |
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if (result < 0) { frame = -1; ns = -1; } |
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jlong values[10] = {AAudioStream_getFramesRead(s), frame, ns, AAudioStream_getXRunCount(s), |
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AAudioStream_getBufferSizeInFrames(s), AAudioStream_getBufferCapacityInFrames(s), AAudioStream_getDeviceId(s), |
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AAudioStream_getPerformanceMode(s), output->error, AAudioStream_getFramesWritten(s)}; |
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(*env)->SetLongArrayRegion(env, out, 0, 10, values); |
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} |
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JNIEXPORT jint JNICALL Java_com_utun_chat_data_CallOutputNative_buffer(JNIEnv* env, jobject self, jlong handle, jint frames) { |
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(void)env; (void)self; |
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struct call_output* output = (struct call_output*)(intptr_t)handle; |
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if (!output || frames < 960) { DEBUG_ERROR(DEBUG_CATEGORY_CALL, "AAudio invalid buffer=%d", frames); return -1; } |
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int result = AAudioStream_setBufferSizeInFrames(output->stream, frames); |
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if (result < 0) output_error("buffer change", result); |
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return result; |
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} |
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JNIEXPORT void JNICALL Java_com_utun_chat_data_CallOutputNative_close(JNIEnv* env, jobject self, jlong handle) { |
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(void)env; (void)self; |
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struct call_output* output = (struct call_output*)(intptr_t)handle; |
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if (!output) return; |
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int result = AAudioStream_close(output->stream); |
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if (result < 0) output_error("close", result); |
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u_free(output); |
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} |
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JNIEXPORT void JNICALL Java_com_utun_chat_data_CallOutputNative_suspendClock(JNIEnv* env, jobject self, jlong id, jlong epoch) { |
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(void)env; (void)self; |
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call_audio_suspend_device(id, epoch); |
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} |
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