First submission of audio effect library from NXP software.

This CL contains the first open sourceable version of the audio effect library from NXP software.
The effects implemented are:
- Bass boost
- Virtualizer (stereo widening)
- Equalizer
- Spectrum analyzer

Source file for the effect engines are located under libeffects/lvm/lib
The wrapper implementing the interface with the audio effect framework in under libeffects/lvm/wrapper

The code of other effect libraries has also been reorganized fo clarity:
- the effect factory is now under libeffects/factory
- the test equalizer and reverb effects are under libeffect/testlibs
- the visualizer is under libeffects/virtualizer

Change-Id: I8d91e2181f81b89f8fc0c1e1e6bf552c5809b2eb

1 files changed, 0 insertions, 401 deletions

diff --git a/media/libeffects/EffectVisualizer.cpp b/media/libeffects/EffectVisualizer.cpp
deleted file mode 100644
index bcda06e..0000000
--- a/media/libeffects/EffectVisualizer.cpp
+++ /dev/null
@@ -1,401 +0,0 @@
-/*
- * Copyright (C) 2010 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.
- */
-
-#define LOG_TAG "Visualizer"
-//#define LOG_NDEBUG 0
-#include <cutils/log.h>
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include <new>
-#include <media/EffectVisualizerApi.h>
-
-namespace android {
-
-// effect_interface_t interface implementation for visualizer effect
-extern "C" const struct effect_interface_s gVisualizerInterface;
-
-// Google Visualizer UUID: d069d9e0-8329-11df-9168-0002a5d5c51b
-const effect_descriptor_t gVisualizerDescriptor = {
-        {0xe46b26a0, 0xdddd, 0x11db, 0x8afd, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // type
-        {0xd069d9e0, 0x8329, 0x11df, 0x9168, {0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b}}, // uuid
-        EFFECT_API_VERSION,
-        (EFFECT_FLAG_TYPE_INSERT | EFFECT_FLAG_INSERT_FIRST),
-        0, // TODO
-        1,
-        "Visualizer",
-        "Google Inc.",
-};
-
-enum visualizer_state_e {
-    VISUALIZER_STATE_UNINITIALIZED,
-    VISUALIZER_STATE_INITIALIZED,
-    VISUALIZER_STATE_ACTIVE,
-};
-
-struct VisualizerContext {
-    const struct effect_interface_s *mItfe;
-    effect_config_t mConfig;
-    uint32_t mState;
-    uint32_t mCaptureIdx;
-    uint32_t mCaptureSize;
-    uint32_t mCurrentBuf;
-    uint8_t mCaptureBuf[2][VISUALIZER_CAPTURE_SIZE_MAX];
-};
-
-
-//
-//--- Local functions
-//
-
-void Visualizer_reset(VisualizerContext *pContext)
-{
-    pContext->mCaptureIdx = 0;
-    pContext->mCurrentBuf = 0;
-    memset(pContext->mCaptureBuf[0], 0, VISUALIZER_CAPTURE_SIZE_MAX);
-    memset(pContext->mCaptureBuf[1], 0, VISUALIZER_CAPTURE_SIZE_MAX);
-}
-
-//----------------------------------------------------------------------------
-// Visualizer_configure()
-//----------------------------------------------------------------------------
-// Purpose: Set input and output audio configuration.
-//
-// Inputs:
-//  pContext:   effect engine context
-//  pConfig:    pointer to effect_config_t structure holding input and output
-//      configuration parameters
-//
-// Outputs:
-//
-//----------------------------------------------------------------------------
-
-int Visualizer_configure(VisualizerContext *pContext, effect_config_t *pConfig)
-{
-    LOGV("Visualizer_configure start");
-
-    if (pConfig->inputCfg.samplingRate != pConfig->outputCfg.samplingRate) return -EINVAL;
-    if (pConfig->inputCfg.channels != pConfig->outputCfg.channels) return -EINVAL;
-    if (pConfig->inputCfg.format != pConfig->outputCfg.format) return -EINVAL;
-    if (pConfig->inputCfg.channels != CHANNEL_STEREO) return -EINVAL;
-    if (pConfig->outputCfg.accessMode != EFFECT_BUFFER_ACCESS_WRITE &&
-            pConfig->outputCfg.accessMode != EFFECT_BUFFER_ACCESS_ACCUMULATE) return -EINVAL;
-    if (pConfig->inputCfg.format != SAMPLE_FORMAT_PCM_S15) return -EINVAL;
-
-    memcpy(&pContext->mConfig, pConfig, sizeof(effect_config_t));
-
-    Visualizer_reset(pContext);
-
-    return 0;
-}
-
-
-//----------------------------------------------------------------------------
-// Visualizer_init()
-//----------------------------------------------------------------------------
-// Purpose: Initialize engine with default configuration.
-//
-// Inputs:
-//  pContext:   effect engine context
-//
-// Outputs:
-//
-//----------------------------------------------------------------------------
-
-int Visualizer_init(VisualizerContext *pContext)
-{
-    pContext->mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
-    pContext->mConfig.inputCfg.channels = CHANNEL_STEREO;
-    pContext->mConfig.inputCfg.format = SAMPLE_FORMAT_PCM_S15;
-    pContext->mConfig.inputCfg.samplingRate = 44100;
-    pContext->mConfig.inputCfg.bufferProvider.getBuffer = NULL;
-    pContext->mConfig.inputCfg.bufferProvider.releaseBuffer = NULL;
-    pContext->mConfig.inputCfg.bufferProvider.cookie = NULL;
-    pContext->mConfig.inputCfg.mask = EFFECT_CONFIG_ALL;
-    pContext->mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE;
-    pContext->mConfig.outputCfg.channels = CHANNEL_STEREO;
-    pContext->mConfig.outputCfg.format = SAMPLE_FORMAT_PCM_S15;
-    pContext->mConfig.outputCfg.samplingRate = 44100;
-    pContext->mConfig.outputCfg.bufferProvider.getBuffer = NULL;
-    pContext->mConfig.outputCfg.bufferProvider.releaseBuffer = NULL;
-    pContext->mConfig.outputCfg.bufferProvider.cookie = NULL;
-    pContext->mConfig.outputCfg.mask = EFFECT_CONFIG_ALL;
-
-    pContext->mCaptureSize = VISUALIZER_CAPTURE_SIZE_MAX;
-
-    Visualizer_configure(pContext, &pContext->mConfig);
-
-    return 0;
-}
-
-//
-//--- Effect Library Interface Implementation
-//
-
-extern "C" int EffectQueryNumberEffects(uint32_t *pNumEffects) {
-    *pNumEffects = 1;
-    return 0;
-}
-
-extern "C" int EffectQueryEffect(uint32_t index, effect_descriptor_t *pDescriptor) {
-    if (pDescriptor == NULL) {
-        return -EINVAL;
-    }
-    if (index > 0) {
-        return -EINVAL;
-    }
-    memcpy(pDescriptor, &gVisualizerDescriptor, sizeof(effect_descriptor_t));
-    return 0;
-}
-
-extern "C" int EffectCreate(effect_uuid_t *uuid,
-        int32_t sessionId,
-        int32_t ioId,
-        effect_interface_t *pInterface) {
-    int ret;
-    int i;
-
-    if (pInterface == NULL || uuid == NULL) {
-        return -EINVAL;
-    }
-
-    if (memcmp(uuid, &gVisualizerDescriptor.uuid, sizeof(effect_uuid_t)) != 0) {
-        return -EINVAL;
-    }
-
-    VisualizerContext *pContext = new VisualizerContext;
-
-    pContext->mItfe = &gVisualizerInterface;
-    pContext->mState = VISUALIZER_STATE_UNINITIALIZED;
-
-    ret = Visualizer_init(pContext);
-    if (ret < 0) {
-        LOGW("EffectCreate() init failed");
-        delete pContext;
-        return ret;
-    }
-
-    *pInterface = (effect_interface_t)pContext;
-
-    pContext->mState = VISUALIZER_STATE_INITIALIZED;
-
-    LOGV("EffectCreate %p", pContext);
-
-    return 0;
-
-}
-
-extern "C" int EffectRelease(effect_interface_t interface) {
-    VisualizerContext * pContext = (VisualizerContext *)interface;
-
-    LOGV("EffectRelease %p", interface);
-    if (pContext == NULL) {
-        return -EINVAL;
-    }
-    pContext->mState = VISUALIZER_STATE_UNINITIALIZED;
-    delete pContext;
-
-    return 0;
-}
-
-//
-//--- Effect Control Interface Implementation
-//
-
-static inline int16_t clamp16(int32_t sample)
-{
-    if ((sample>>15) ^ (sample>>31))
-        sample = 0x7FFF ^ (sample>>31);
-    return sample;
-}
-
-extern "C" int Visualizer_process(
-        effect_interface_t self,audio_buffer_t *inBuffer, audio_buffer_t *outBuffer)
-{
-    android::VisualizerContext * pContext = (android::VisualizerContext *)self;
-
-    if (pContext == NULL) {
-        return -EINVAL;
-    }
-    if (pContext->mState != VISUALIZER_STATE_ACTIVE) {
-        return -ENODATA;
-    }
-
-    if (inBuffer == NULL || inBuffer->raw == NULL ||
-        outBuffer == NULL || outBuffer->raw == NULL ||
-        inBuffer->frameCount != outBuffer->frameCount ||
-        inBuffer->frameCount == 0) {
-        return -EINVAL;
-    }
-
-    // all code below assumes stereo 16 bit PCM output and input
-    uint32_t captIdx;
-    uint32_t inIdx;
-    uint8_t *buf = pContext->mCaptureBuf[pContext->mCurrentBuf];
-    for (inIdx = 0, captIdx = pContext->mCaptureIdx;
-         inIdx < inBuffer->frameCount && captIdx < pContext->mCaptureSize;
-         inIdx++, captIdx++) {
-        int32_t smp = inBuffer->s16[2 * inIdx] + inBuffer->s16[2 * inIdx + 1];
-        smp = (smp + (1 << 8)) >> 9;
-        buf[captIdx] = ((uint8_t)smp)^0x80;
-    }
-    pContext->mCaptureIdx = captIdx;
-
-    // go to next buffer when buffer full
-    if (pContext->mCaptureIdx == pContext->mCaptureSize) {
-        pContext->mCurrentBuf ^= 1;
-        pContext->mCaptureIdx = 0;
-    }
-
-    if (inBuffer->raw != outBuffer->raw) {
-        if (pContext->mConfig.outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE) {
-            for (size_t i = 0; i < outBuffer->frameCount*2; i++) {
-                outBuffer->s16[i] = clamp16(outBuffer->s16[i] + inBuffer->s16[i]);
-            }
-        } else {
-            memcpy(outBuffer->raw, inBuffer->raw, outBuffer->frameCount * 2 * sizeof(int16_t));
-        }
-    }
-    return 0;
-}   // end Visualizer_process
-
-extern "C" int Visualizer_command(effect_interface_t self, int cmdCode, int cmdSize,
-        void *pCmdData, int *replySize, void *pReplyData) {
-
-    android::VisualizerContext * pContext = (android::VisualizerContext *)self;
-    int retsize;
-
-    if (pContext == NULL || pContext->mState == VISUALIZER_STATE_UNINITIALIZED) {
-        return -EINVAL;
-    }
-
-//    LOGV("Visualizer_command command %d cmdSize %d",cmdCode, cmdSize);
-
-    switch (cmdCode) {
-    case EFFECT_CMD_INIT:
-        if (pReplyData == NULL || *replySize != sizeof(int)) {
-            return -EINVAL;
-        }
-        *(int *) pReplyData = Visualizer_init(pContext);
-        break;
-    case EFFECT_CMD_CONFIGURE:
-        if (pCmdData == NULL || cmdSize != sizeof(effect_config_t)
-                || pReplyData == NULL || *replySize != sizeof(int)) {
-            return -EINVAL;
-        }
-        *(int *) pReplyData = Visualizer_configure(pContext,
-                (effect_config_t *) pCmdData);
-        break;
-    case EFFECT_CMD_RESET:
-        Visualizer_reset(pContext);
-        break;
-    case EFFECT_CMD_ENABLE:
-        if (pReplyData == NULL || *replySize != sizeof(int)) {
-            return -EINVAL;
-        }
-        if (pContext->mState != VISUALIZER_STATE_INITIALIZED) {
-            return -ENOSYS;
-        }
-        pContext->mState = VISUALIZER_STATE_ACTIVE;
-        LOGV("EFFECT_CMD_ENABLE() OK");
-        *(int *)pReplyData = 0;
-        break;
-    case EFFECT_CMD_DISABLE:
-        if (pReplyData == NULL || *replySize != sizeof(int)) {
-            return -EINVAL;
-        }
-        if (pContext->mState != VISUALIZER_STATE_ACTIVE) {
-            return -ENOSYS;
-        }
-        pContext->mState = VISUALIZER_STATE_INITIALIZED;
-        LOGV("EFFECT_CMD_DISABLE() OK");
-        *(int *)pReplyData = 0;
-        break;
-    case EFFECT_CMD_GET_PARAM: {
-        if (pCmdData == NULL ||
-            cmdSize != (int)(sizeof(effect_param_t) + sizeof(uint32_t)) ||
-            pReplyData == NULL ||
-            *replySize < (int)(sizeof(effect_param_t) + sizeof(uint32_t) + sizeof(uint32_t))) {
-            return -EINVAL;
-        }
-        memcpy(pReplyData, pCmdData, sizeof(effect_param_t) + sizeof(uint32_t));
-        effect_param_t *p = (effect_param_t *)pReplyData;
-        p->status = 0;
-        *replySize = sizeof(effect_param_t) + sizeof(uint32_t);
-        if (p->psize != sizeof(uint32_t) ||
-            *(uint32_t *)p->data != VISU_PARAM_CAPTURE_SIZE) {
-            p->status = -EINVAL;
-            break;
-        }
-        LOGV("get mCaptureSize = %d", pContext->mCaptureSize);
-        *((uint32_t *)p->data + 1) = pContext->mCaptureSize;
-        p->vsize = sizeof(uint32_t);
-        *replySize += sizeof(uint32_t);
-        } break;
-    case EFFECT_CMD_SET_PARAM: {
-        if (pCmdData == NULL ||
-            cmdSize != (int)(sizeof(effect_param_t) + sizeof(uint32_t) + sizeof(uint32_t)) ||
-            pReplyData == NULL || *replySize != sizeof(int32_t)) {
-            return -EINVAL;
-        }
-        *(int32_t *)pReplyData = 0;
-        effect_param_t *p = (effect_param_t *)pCmdData;
-        if (p->psize != sizeof(uint32_t) ||
-            p->vsize != sizeof(uint32_t) ||
-            *(uint32_t *)p->data != VISU_PARAM_CAPTURE_SIZE) {
-            *(int32_t *)pReplyData = -EINVAL;
-            break;;
-        }
-        pContext->mCaptureSize = *((uint32_t *)p->data + 1);
-        LOGV("set mCaptureSize = %d", pContext->mCaptureSize);
-        } break;
-    case EFFECT_CMD_SET_DEVICE:
-    case EFFECT_CMD_SET_VOLUME:
-    case EFFECT_CMD_SET_AUDIO_MODE:
-        break;
-
-
-    case VISU_CMD_CAPTURE:
-        if (pReplyData == NULL || *replySize != (int)pContext->mCaptureSize) {
-            LOGV("VISU_CMD_CAPTURE() error *replySize %d pContext->mCaptureSize %d",
-                    *replySize, pContext->mCaptureSize);
-            return -EINVAL;
-        }
-        if (pContext->mState == VISUALIZER_STATE_ACTIVE) {
-            memcpy(pReplyData,
-                   pContext->mCaptureBuf[pContext->mCurrentBuf ^ 1],
-                   pContext->mCaptureSize);
-        } else {
-            memset(pReplyData, 0x80, pContext->mCaptureSize);
-        }
-        break;
-
-    default:
-        LOGW("Visualizer_command invalid command %d",cmdCode);
-        return -EINVAL;
-    }
-
-    return 0;
-}
-
-// effect_interface_t interface implementation for visualizer effect
-const struct effect_interface_s gVisualizerInterface = {
-        Visualizer_process,
-        Visualizer_command
-};
-
-} // namespace
-