Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "EffectLE" |
| 18 | //#define LOG_NDEBUG 0 |
| 19 | #include <cutils/log.h> |
| 20 | #include <assert.h> |
| 21 | #include <stdlib.h> |
| 22 | #include <string.h> |
| 23 | #include <new> |
| 24 | #include <time.h> |
| 25 | #include <math.h> |
| 26 | #include <audio_effects/effect_loudnessenhancer.h> |
| 27 | #include "dsp/core/dynamic_range_compression.h" |
| 28 | |
| 29 | extern "C" { |
| 30 | |
| 31 | // effect_handle_t interface implementation for LE effect |
| 32 | extern const struct effect_interface_s gLEInterface; |
| 33 | |
| 34 | // AOSP Loudness Enhancer UUID: fa415329-2034-4bea-b5dc-5b381c8d1e2c |
| 35 | const effect_descriptor_t gLEDescriptor = { |
| 36 | {0xfe3199be, 0xaed0, 0x413f, 0x87bb, {0x11, 0x26, 0x0e, 0xb6, 0x3c, 0xf1}}, // type |
| 37 | {0xfa415329, 0x2034, 0x4bea, 0xb5dc, {0x5b, 0x38, 0x1c, 0x8d, 0x1e, 0x2c}}, // uuid |
| 38 | EFFECT_CONTROL_API_VERSION, |
| 39 | (EFFECT_FLAG_TYPE_INSERT | EFFECT_FLAG_INSERT_FIRST), |
| 40 | 0, // TODO |
| 41 | 1, |
| 42 | "Loudness Enhancer", |
| 43 | "The Android Open Source Project", |
| 44 | }; |
| 45 | |
| 46 | enum le_state_e { |
| 47 | LOUDNESS_ENHANCER_STATE_UNINITIALIZED, |
| 48 | LOUDNESS_ENHANCER_STATE_INITIALIZED, |
| 49 | LOUDNESS_ENHANCER_STATE_ACTIVE, |
| 50 | }; |
| 51 | |
| 52 | struct LoudnessEnhancerContext { |
| 53 | const struct effect_interface_s *mItfe; |
| 54 | effect_config_t mConfig; |
| 55 | uint8_t mState; |
| 56 | int32_t mTargetGainmB;// target gain in mB |
| 57 | // in this implementation, there is no coupling between the compression on the left and right |
| 58 | // channels |
Jean-Michel Trivi | cd0c468 | 2013-09-25 18:43:55 -0700 | [diff] [blame] | 59 | le_fx::AdaptiveDynamicRangeCompression* mCompressor; |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 60 | }; |
| 61 | |
| 62 | // |
| 63 | //--- Local functions (not directly used by effect interface) |
| 64 | // |
| 65 | |
| 66 | void LE_reset(LoudnessEnhancerContext *pContext) |
| 67 | { |
| 68 | ALOGV(" > LE_reset(%p)", pContext); |
| 69 | |
Jean-Michel Trivi | cd0c468 | 2013-09-25 18:43:55 -0700 | [diff] [blame] | 70 | if (pContext->mCompressor != NULL) { |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 71 | float targetAmp = pow(10, pContext->mTargetGainmB/2000.0f); // mB to linear amplification |
| 72 | ALOGV("LE_reset(): Target gain=%dmB <=> factor=%.2fX", pContext->mTargetGainmB, targetAmp); |
Jean-Michel Trivi | cd0c468 | 2013-09-25 18:43:55 -0700 | [diff] [blame] | 73 | pContext->mCompressor->Initialize(targetAmp, pContext->mConfig.inputCfg.samplingRate); |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 74 | } else { |
| 75 | ALOGE("LE_reset(%p): null compressors, can't apply target gain", pContext); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | static inline int16_t clamp16(int32_t sample) |
| 80 | { |
| 81 | if ((sample>>15) ^ (sample>>31)) |
| 82 | sample = 0x7FFF ^ (sample>>31); |
| 83 | return sample; |
| 84 | } |
| 85 | |
| 86 | //---------------------------------------------------------------------------- |
| 87 | // LE_setConfig() |
| 88 | //---------------------------------------------------------------------------- |
| 89 | // Purpose: Set input and output audio configuration. |
| 90 | // |
| 91 | // Inputs: |
| 92 | // pContext: effect engine context |
| 93 | // pConfig: pointer to effect_config_t structure holding input and output |
| 94 | // configuration parameters |
| 95 | // |
| 96 | // Outputs: |
| 97 | // |
| 98 | //---------------------------------------------------------------------------- |
| 99 | |
| 100 | int LE_setConfig(LoudnessEnhancerContext *pContext, effect_config_t *pConfig) |
| 101 | { |
| 102 | ALOGV("LE_setConfig(%p)", pContext); |
| 103 | |
| 104 | if (pConfig->inputCfg.samplingRate != pConfig->outputCfg.samplingRate) return -EINVAL; |
| 105 | if (pConfig->inputCfg.channels != pConfig->outputCfg.channels) return -EINVAL; |
| 106 | if (pConfig->inputCfg.format != pConfig->outputCfg.format) return -EINVAL; |
| 107 | if (pConfig->inputCfg.channels != AUDIO_CHANNEL_OUT_STEREO) return -EINVAL; |
| 108 | if (pConfig->outputCfg.accessMode != EFFECT_BUFFER_ACCESS_WRITE && |
| 109 | pConfig->outputCfg.accessMode != EFFECT_BUFFER_ACCESS_ACCUMULATE) return -EINVAL; |
| 110 | if (pConfig->inputCfg.format != AUDIO_FORMAT_PCM_16_BIT) return -EINVAL; |
| 111 | |
| 112 | pContext->mConfig = *pConfig; |
| 113 | |
| 114 | LE_reset(pContext); |
| 115 | |
| 116 | return 0; |
| 117 | } |
| 118 | |
| 119 | |
| 120 | //---------------------------------------------------------------------------- |
| 121 | // LE_getConfig() |
| 122 | //---------------------------------------------------------------------------- |
| 123 | // Purpose: Get input and output audio configuration. |
| 124 | // |
| 125 | // Inputs: |
| 126 | // pContext: effect engine context |
| 127 | // pConfig: pointer to effect_config_t structure holding input and output |
| 128 | // configuration parameters |
| 129 | // |
| 130 | // Outputs: |
| 131 | // |
| 132 | //---------------------------------------------------------------------------- |
| 133 | |
| 134 | void LE_getConfig(LoudnessEnhancerContext *pContext, effect_config_t *pConfig) |
| 135 | { |
| 136 | *pConfig = pContext->mConfig; |
| 137 | } |
| 138 | |
| 139 | |
| 140 | //---------------------------------------------------------------------------- |
| 141 | // LE_init() |
| 142 | //---------------------------------------------------------------------------- |
| 143 | // Purpose: Initialize engine with default configuration. |
| 144 | // |
| 145 | // Inputs: |
| 146 | // pContext: effect engine context |
| 147 | // |
| 148 | // Outputs: |
| 149 | // |
| 150 | //---------------------------------------------------------------------------- |
| 151 | |
| 152 | int LE_init(LoudnessEnhancerContext *pContext) |
| 153 | { |
| 154 | ALOGV("LE_init(%p)", pContext); |
| 155 | |
| 156 | pContext->mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ; |
| 157 | pContext->mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_STEREO; |
| 158 | pContext->mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT; |
| 159 | pContext->mConfig.inputCfg.samplingRate = 44100; |
| 160 | pContext->mConfig.inputCfg.bufferProvider.getBuffer = NULL; |
| 161 | pContext->mConfig.inputCfg.bufferProvider.releaseBuffer = NULL; |
| 162 | pContext->mConfig.inputCfg.bufferProvider.cookie = NULL; |
| 163 | pContext->mConfig.inputCfg.mask = EFFECT_CONFIG_ALL; |
| 164 | pContext->mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE; |
| 165 | pContext->mConfig.outputCfg.channels = AUDIO_CHANNEL_OUT_STEREO; |
| 166 | pContext->mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT; |
| 167 | pContext->mConfig.outputCfg.samplingRate = 44100; |
| 168 | pContext->mConfig.outputCfg.bufferProvider.getBuffer = NULL; |
| 169 | pContext->mConfig.outputCfg.bufferProvider.releaseBuffer = NULL; |
| 170 | pContext->mConfig.outputCfg.bufferProvider.cookie = NULL; |
| 171 | pContext->mConfig.outputCfg.mask = EFFECT_CONFIG_ALL; |
| 172 | |
| 173 | pContext->mTargetGainmB = LOUDNESS_ENHANCER_DEFAULT_TARGET_GAIN_MB; |
| 174 | float targetAmp = pow(10, pContext->mTargetGainmB/2000.0f); // mB to linear amplification |
| 175 | ALOGV("LE_init(): Target gain=%dmB <=> factor=%.2fX", pContext->mTargetGainmB, targetAmp); |
| 176 | |
Jean-Michel Trivi | cd0c468 | 2013-09-25 18:43:55 -0700 | [diff] [blame] | 177 | if (pContext->mCompressor == NULL) { |
| 178 | pContext->mCompressor = new le_fx::AdaptiveDynamicRangeCompression(); |
| 179 | pContext->mCompressor->Initialize(targetAmp, pContext->mConfig.inputCfg.samplingRate); |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 180 | } |
| 181 | |
| 182 | LE_setConfig(pContext, &pContext->mConfig); |
| 183 | |
| 184 | return 0; |
| 185 | } |
| 186 | |
| 187 | // |
| 188 | //--- Effect Library Interface Implementation |
| 189 | // |
| 190 | |
| 191 | int LELib_Create(const effect_uuid_t *uuid, |
Eric Laurent | 0f714a4 | 2015-06-19 15:33:57 -0700 | [diff] [blame] | 192 | int32_t sessionId __unused, |
| 193 | int32_t ioId __unused, |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 194 | effect_handle_t *pHandle) { |
| 195 | ALOGV("LELib_Create()"); |
| 196 | int ret; |
| 197 | int i; |
| 198 | |
| 199 | if (pHandle == NULL || uuid == NULL) { |
| 200 | return -EINVAL; |
| 201 | } |
| 202 | |
| 203 | if (memcmp(uuid, &gLEDescriptor.uuid, sizeof(effect_uuid_t)) != 0) { |
| 204 | return -EINVAL; |
| 205 | } |
| 206 | |
| 207 | LoudnessEnhancerContext *pContext = new LoudnessEnhancerContext; |
| 208 | |
| 209 | pContext->mItfe = &gLEInterface; |
| 210 | pContext->mState = LOUDNESS_ENHANCER_STATE_UNINITIALIZED; |
| 211 | |
Jean-Michel Trivi | cd0c468 | 2013-09-25 18:43:55 -0700 | [diff] [blame] | 212 | pContext->mCompressor = NULL; |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 213 | ret = LE_init(pContext); |
| 214 | if (ret < 0) { |
| 215 | ALOGW("LELib_Create() init failed"); |
| 216 | delete pContext; |
| 217 | return ret; |
| 218 | } |
| 219 | |
| 220 | *pHandle = (effect_handle_t)pContext; |
| 221 | |
| 222 | pContext->mState = LOUDNESS_ENHANCER_STATE_INITIALIZED; |
| 223 | |
| 224 | ALOGV(" LELib_Create context is %p", pContext); |
| 225 | |
| 226 | return 0; |
| 227 | |
| 228 | } |
| 229 | |
| 230 | int LELib_Release(effect_handle_t handle) { |
| 231 | LoudnessEnhancerContext * pContext = (LoudnessEnhancerContext *)handle; |
| 232 | |
| 233 | ALOGV("LELib_Release %p", handle); |
| 234 | if (pContext == NULL) { |
| 235 | return -EINVAL; |
| 236 | } |
| 237 | pContext->mState = LOUDNESS_ENHANCER_STATE_UNINITIALIZED; |
Jean-Michel Trivi | cd0c468 | 2013-09-25 18:43:55 -0700 | [diff] [blame] | 238 | if (pContext->mCompressor != NULL) { |
| 239 | delete pContext->mCompressor; |
| 240 | pContext->mCompressor = NULL; |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 241 | } |
| 242 | delete pContext; |
| 243 | |
| 244 | return 0; |
| 245 | } |
| 246 | |
| 247 | int LELib_GetDescriptor(const effect_uuid_t *uuid, |
| 248 | effect_descriptor_t *pDescriptor) { |
| 249 | |
| 250 | if (pDescriptor == NULL || uuid == NULL){ |
| 251 | ALOGV("LELib_GetDescriptor() called with NULL pointer"); |
| 252 | return -EINVAL; |
| 253 | } |
| 254 | |
| 255 | if (memcmp(uuid, &gLEDescriptor.uuid, sizeof(effect_uuid_t)) == 0) { |
| 256 | *pDescriptor = gLEDescriptor; |
| 257 | return 0; |
| 258 | } |
| 259 | |
| 260 | return -EINVAL; |
| 261 | } /* end LELib_GetDescriptor */ |
| 262 | |
| 263 | // |
| 264 | //--- Effect Control Interface Implementation |
| 265 | // |
| 266 | int LE_process( |
| 267 | effect_handle_t self, audio_buffer_t *inBuffer, audio_buffer_t *outBuffer) |
| 268 | { |
| 269 | LoudnessEnhancerContext * pContext = (LoudnessEnhancerContext *)self; |
| 270 | |
| 271 | if (pContext == NULL) { |
| 272 | return -EINVAL; |
| 273 | } |
| 274 | |
| 275 | if (inBuffer == NULL || inBuffer->raw == NULL || |
| 276 | outBuffer == NULL || outBuffer->raw == NULL || |
| 277 | inBuffer->frameCount != outBuffer->frameCount || |
| 278 | inBuffer->frameCount == 0) { |
| 279 | return -EINVAL; |
| 280 | } |
| 281 | |
| 282 | //ALOGV("LE about to process %d samples", inBuffer->frameCount); |
| 283 | uint16_t inIdx; |
| 284 | float inputAmp = pow(10, pContext->mTargetGainmB/2000.0f); |
Jean-Michel Trivi | cd0c468 | 2013-09-25 18:43:55 -0700 | [diff] [blame] | 285 | float leftSample, rightSample; |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 286 | for (inIdx = 0 ; inIdx < inBuffer->frameCount ; inIdx++) { |
Jean-Michel Trivi | cd0c468 | 2013-09-25 18:43:55 -0700 | [diff] [blame] | 287 | // makeup gain is applied on the input of the compressor |
| 288 | leftSample = inputAmp * (float)inBuffer->s16[2*inIdx]; |
| 289 | rightSample = inputAmp * (float)inBuffer->s16[2*inIdx +1]; |
| 290 | pContext->mCompressor->Compress(&leftSample, &rightSample); |
| 291 | inBuffer->s16[2*inIdx] = (int16_t) leftSample; |
| 292 | inBuffer->s16[2*inIdx +1] = (int16_t) rightSample; |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 293 | } |
| 294 | |
| 295 | if (inBuffer->raw != outBuffer->raw) { |
| 296 | if (pContext->mConfig.outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE) { |
| 297 | for (size_t i = 0; i < outBuffer->frameCount*2; i++) { |
| 298 | outBuffer->s16[i] = clamp16(outBuffer->s16[i] + inBuffer->s16[i]); |
| 299 | } |
| 300 | } else { |
| 301 | memcpy(outBuffer->raw, inBuffer->raw, outBuffer->frameCount * 2 * sizeof(int16_t)); |
| 302 | } |
| 303 | } |
| 304 | if (pContext->mState != LOUDNESS_ENHANCER_STATE_ACTIVE) { |
| 305 | return -ENODATA; |
| 306 | } |
| 307 | return 0; |
| 308 | } |
| 309 | |
| 310 | int LE_command(effect_handle_t self, uint32_t cmdCode, uint32_t cmdSize, |
| 311 | void *pCmdData, uint32_t *replySize, void *pReplyData) { |
| 312 | |
| 313 | LoudnessEnhancerContext * pContext = (LoudnessEnhancerContext *)self; |
| 314 | int retsize; |
| 315 | |
| 316 | if (pContext == NULL || pContext->mState == LOUDNESS_ENHANCER_STATE_UNINITIALIZED) { |
| 317 | return -EINVAL; |
| 318 | } |
| 319 | |
| 320 | // ALOGV("LE_command command %d cmdSize %d",cmdCode, cmdSize); |
| 321 | switch (cmdCode) { |
| 322 | case EFFECT_CMD_INIT: |
| 323 | if (pReplyData == NULL || *replySize != sizeof(int)) { |
| 324 | return -EINVAL; |
| 325 | } |
| 326 | *(int *) pReplyData = LE_init(pContext); |
| 327 | break; |
| 328 | case EFFECT_CMD_SET_CONFIG: |
| 329 | if (pCmdData == NULL || cmdSize != sizeof(effect_config_t) |
Eric Laurent | 0f714a4 | 2015-06-19 15:33:57 -0700 | [diff] [blame] | 330 | || pReplyData == NULL || replySize == NULL || *replySize != sizeof(int)) { |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 331 | return -EINVAL; |
| 332 | } |
| 333 | *(int *) pReplyData = LE_setConfig(pContext, |
| 334 | (effect_config_t *) pCmdData); |
| 335 | break; |
| 336 | case EFFECT_CMD_GET_CONFIG: |
| 337 | if (pReplyData == NULL || |
| 338 | *replySize != sizeof(effect_config_t)) { |
| 339 | return -EINVAL; |
| 340 | } |
| 341 | LE_getConfig(pContext, (effect_config_t *)pReplyData); |
| 342 | break; |
| 343 | case EFFECT_CMD_RESET: |
| 344 | LE_reset(pContext); |
| 345 | break; |
| 346 | case EFFECT_CMD_ENABLE: |
Eric Laurent | 0f714a4 | 2015-06-19 15:33:57 -0700 | [diff] [blame] | 347 | if (pReplyData == NULL || replySize == NULL || *replySize != sizeof(int)) { |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 348 | return -EINVAL; |
| 349 | } |
| 350 | if (pContext->mState != LOUDNESS_ENHANCER_STATE_INITIALIZED) { |
| 351 | return -ENOSYS; |
| 352 | } |
| 353 | pContext->mState = LOUDNESS_ENHANCER_STATE_ACTIVE; |
| 354 | ALOGV("EFFECT_CMD_ENABLE() OK"); |
| 355 | *(int *)pReplyData = 0; |
| 356 | break; |
| 357 | case EFFECT_CMD_DISABLE: |
| 358 | if (pReplyData == NULL || *replySize != sizeof(int)) { |
| 359 | return -EINVAL; |
| 360 | } |
| 361 | if (pContext->mState != LOUDNESS_ENHANCER_STATE_ACTIVE) { |
| 362 | return -ENOSYS; |
| 363 | } |
| 364 | pContext->mState = LOUDNESS_ENHANCER_STATE_INITIALIZED; |
| 365 | ALOGV("EFFECT_CMD_DISABLE() OK"); |
| 366 | *(int *)pReplyData = 0; |
| 367 | break; |
| 368 | case EFFECT_CMD_GET_PARAM: { |
| 369 | if (pCmdData == NULL || |
| 370 | cmdSize != (int)(sizeof(effect_param_t) + sizeof(uint32_t)) || |
Eric Laurent | 0f714a4 | 2015-06-19 15:33:57 -0700 | [diff] [blame] | 371 | pReplyData == NULL || replySize == NULL || |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 372 | *replySize < (int)(sizeof(effect_param_t) + sizeof(uint32_t) + sizeof(uint32_t))) { |
| 373 | return -EINVAL; |
| 374 | } |
| 375 | memcpy(pReplyData, pCmdData, sizeof(effect_param_t) + sizeof(uint32_t)); |
| 376 | effect_param_t *p = (effect_param_t *)pReplyData; |
| 377 | p->status = 0; |
| 378 | *replySize = sizeof(effect_param_t) + sizeof(uint32_t); |
| 379 | if (p->psize != sizeof(uint32_t)) { |
| 380 | p->status = -EINVAL; |
| 381 | break; |
| 382 | } |
| 383 | switch (*(uint32_t *)p->data) { |
| 384 | case LOUDNESS_ENHANCER_PARAM_TARGET_GAIN_MB: |
| 385 | ALOGV("get target gain(mB) = %d", pContext->mTargetGainmB); |
| 386 | *((int32_t *)p->data + 1) = pContext->mTargetGainmB; |
| 387 | p->vsize = sizeof(int32_t); |
| 388 | *replySize += sizeof(int32_t); |
| 389 | break; |
| 390 | default: |
| 391 | p->status = -EINVAL; |
| 392 | } |
| 393 | } break; |
| 394 | case EFFECT_CMD_SET_PARAM: { |
| 395 | if (pCmdData == NULL || |
| 396 | cmdSize != (int)(sizeof(effect_param_t) + sizeof(uint32_t) + sizeof(uint32_t)) || |
Eric Laurent | 0f714a4 | 2015-06-19 15:33:57 -0700 | [diff] [blame] | 397 | pReplyData == NULL || replySize == NULL || *replySize != sizeof(int32_t)) { |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 398 | return -EINVAL; |
| 399 | } |
| 400 | *(int32_t *)pReplyData = 0; |
| 401 | effect_param_t *p = (effect_param_t *)pCmdData; |
| 402 | if (p->psize != sizeof(uint32_t) || p->vsize != sizeof(uint32_t)) { |
| 403 | *(int32_t *)pReplyData = -EINVAL; |
| 404 | break; |
| 405 | } |
| 406 | switch (*(uint32_t *)p->data) { |
| 407 | case LOUDNESS_ENHANCER_PARAM_TARGET_GAIN_MB: |
| 408 | pContext->mTargetGainmB = *((int32_t *)p->data + 1); |
| 409 | ALOGV("set target gain(mB) = %d", pContext->mTargetGainmB); |
| 410 | LE_reset(pContext); // apply parameter update |
| 411 | break; |
| 412 | default: |
| 413 | *(int32_t *)pReplyData = -EINVAL; |
| 414 | } |
| 415 | } break; |
| 416 | case EFFECT_CMD_SET_DEVICE: |
| 417 | case EFFECT_CMD_SET_VOLUME: |
| 418 | case EFFECT_CMD_SET_AUDIO_MODE: |
| 419 | break; |
| 420 | |
| 421 | default: |
| 422 | ALOGW("LE_command invalid command %d",cmdCode); |
| 423 | return -EINVAL; |
| 424 | } |
| 425 | |
| 426 | return 0; |
| 427 | } |
| 428 | |
| 429 | /* Effect Control Interface Implementation: get_descriptor */ |
| 430 | int LE_getDescriptor(effect_handle_t self, |
| 431 | effect_descriptor_t *pDescriptor) |
| 432 | { |
| 433 | LoudnessEnhancerContext * pContext = (LoudnessEnhancerContext *) self; |
| 434 | |
| 435 | if (pContext == NULL || pDescriptor == NULL) { |
| 436 | ALOGV("LE_getDescriptor() invalid param"); |
| 437 | return -EINVAL; |
| 438 | } |
| 439 | |
| 440 | *pDescriptor = gLEDescriptor; |
| 441 | |
| 442 | return 0; |
| 443 | } /* end LE_getDescriptor */ |
| 444 | |
| 445 | // effect_handle_t interface implementation for DRC effect |
| 446 | const struct effect_interface_s gLEInterface = { |
| 447 | LE_process, |
| 448 | LE_command, |
| 449 | LE_getDescriptor, |
| 450 | NULL, |
| 451 | }; |
| 452 | |
| 453 | // This is the only symbol that needs to be exported |
| 454 | __attribute__ ((visibility ("default"))) |
| 455 | audio_effect_library_t AUDIO_EFFECT_LIBRARY_INFO_SYM = { |
synergy dev | 9803acb | 2013-12-17 17:48:51 -0800 | [diff] [blame] | 456 | .tag = AUDIO_EFFECT_LIBRARY_TAG, |
| 457 | .version = EFFECT_LIBRARY_API_VERSION, |
| 458 | .name = "Loudness Enhancer Library", |
| 459 | .implementor = "The Android Open Source Project", |
| 460 | .create_effect = LELib_Create, |
| 461 | .release_effect = LELib_Release, |
| 462 | .get_descriptor = LELib_GetDescriptor, |
Jean-Michel Trivi | 6cc3a99 | 2013-09-10 09:15:18 -0700 | [diff] [blame] | 463 | }; |
| 464 | |
| 465 | }; // extern "C" |
| 466 | |