From f013e1afd1e68af5e3b868c26a653bbfb39538f8 Mon Sep 17 00:00:00 2001
From: The Android Open Source Project <initial-contribution@android.com>
Date: Wed, 17 Dec 2008 18:05:43 -0800
Subject: Code drop from //branches/cupcake/...@124589

---
 libs/audioflinger/A2dpAudioInterface.cpp | 186 +++++++++++++++++++++++++++++++
 1 file changed, 186 insertions(+)
 create mode 100644 libs/audioflinger/A2dpAudioInterface.cpp

(limited to 'libs/audioflinger/A2dpAudioInterface.cpp')

diff --git a/libs/audioflinger/A2dpAudioInterface.cpp b/libs/audioflinger/A2dpAudioInterface.cpp
new file mode 100644
index 0000000..d54795c
--- /dev/null
+++ b/libs/audioflinger/A2dpAudioInterface.cpp
@@ -0,0 +1,186 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <math.h>
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "A2dpAudioInterface"
+#include <utils/Log.h>
+#include <utils/String8.h>
+
+#include "A2dpAudioInterface.h"
+#include "audio/liba2dp.h"
+
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+A2dpAudioInterface::A2dpAudioInterface() :
+    mOutput(0)
+{
+}
+
+A2dpAudioInterface::~A2dpAudioInterface()
+{
+    delete mOutput;
+}
+
+status_t A2dpAudioInterface::initCheck()
+{
+    return 0;
+}
+
+AudioStreamOut* A2dpAudioInterface::openOutputStream(
+        int format, int channelCount, uint32_t sampleRate, status_t *status)
+{
+    LOGD("A2dpAudioInterface::openOutputStream %d, %d, %d\n", format, channelCount, sampleRate);
+    Mutex::Autolock lock(mLock);
+    status_t err = 0;
+
+    // only one output stream allowed
+    if (mOutput) {
+        if (status)
+            *status = -1;
+        return NULL;
+    }
+
+    // create new output stream
+    A2dpAudioStreamOut* out = new A2dpAudioStreamOut();
+    if ((err = out->set(format, channelCount, sampleRate)) == NO_ERROR) {
+        mOutput = out;
+    } else {
+        delete out;
+    }
+    
+    if (status)
+        *status = err;
+    return mOutput;
+}
+
+AudioStreamIn* A2dpAudioInterface::openInputStream(
+        int format, int channelCount, uint32_t sampleRate, status_t *status)
+{
+    if (status)
+        *status = -1;
+    return NULL;
+}
+
+status_t A2dpAudioInterface::standby()
+{
+    return 0;
+}
+
+status_t A2dpAudioInterface::setMicMute(bool state)
+{
+    return 0;
+}
+
+status_t A2dpAudioInterface::getMicMute(bool* state)
+{
+    return 0;
+}
+
+status_t A2dpAudioInterface::setParameter(const char *key, const char *value)
+{
+    LOGD("setParameter %s,%s\n", key, value);
+    return 0;
+}
+
+status_t A2dpAudioInterface::setVoiceVolume(float v)
+{
+    return 0;
+}
+
+status_t A2dpAudioInterface::setMasterVolume(float v)
+{
+    return 0;
+}
+
+status_t A2dpAudioInterface::doRouting()
+{
+    return 0;
+}
+
+status_t A2dpAudioInterface::dump(int fd, const Vector<String16>& args)
+{
+    return 0;
+}
+
+// ----------------------------------------------------------------------------
+
+A2dpAudioInterface::A2dpAudioStreamOut::A2dpAudioStreamOut() :
+    mFd(-1), mStartCount(0), mRetryCount(0), mData(NULL),
+    mInitialized(false), mBufferRemaining(0)
+{
+}
+
+status_t A2dpAudioInterface::A2dpAudioStreamOut::set(
+        int format, int channels, uint32_t rate)
+{
+    LOGD("A2dpAudioStreamOut::set %d, %d, %d\n", format, channels, rate);
+
+    // fix up defaults
+    if (format == 0) format = AudioSystem::PCM_16_BIT;
+    if (channels == 0) channels = channelCount();
+    if (rate == 0) rate = sampleRate();
+
+    // check values
+    if ((format != AudioSystem::PCM_16_BIT) ||
+            (channels != channelCount()) ||
+            (rate != sampleRate()))
+        return BAD_VALUE;
+
+    return NO_ERROR;
+}
+
+A2dpAudioInterface::A2dpAudioStreamOut::~A2dpAudioStreamOut()
+{
+    if (mData)
+        a2dp_cleanup(mData);
+}
+
+ssize_t A2dpAudioInterface::A2dpAudioStreamOut::write(const void* buffer, size_t bytes)
+{    
+    if (!mInitialized) {
+        int ret = a2dp_init("00:00:00:00:00:00", 44100, 2, &mData);
+        if (ret)
+            return ret;
+        mInitialized = true;
+    }
+    
+    size_t remaining = bytes;
+    while (remaining > 0) {
+        int written = a2dp_write(mData, buffer, remaining);        
+        remaining -= written;
+        buffer = ((char *)buffer) + written;
+    }
+    
+    return bytes;
+}
+
+status_t A2dpAudioInterface::A2dpAudioStreamOut::standby()
+{
+    return 0;
+}
+
+status_t A2dpAudioInterface::A2dpAudioStreamOut::dump(int fd, const Vector<String16>& args)
+{
+    return NO_ERROR;
+}
+
+
+}; // namespace android
-- 
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