Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 "BufferProvider" |
| 18 | //#define LOG_NDEBUG 0 |
| 19 | |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 20 | #include <audio_utils/primitives.h> |
| 21 | #include <audio_utils/format.h> |
jiabin | dce8f8c | 2018-12-10 17:49:31 -0800 | [diff] [blame^] | 22 | #include <audio_utils/channels.h> |
Andy Hung | 068561c | 2017-01-03 17:09:32 -0800 | [diff] [blame] | 23 | #include <external/sonic/sonic.h> |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 24 | #include <media/audiohal/EffectBufferHalInterface.h> |
Mikhail Naganov | a0c9133 | 2016-09-19 10:01:12 -0700 | [diff] [blame] | 25 | #include <media/audiohal/EffectHalInterface.h> |
| 26 | #include <media/audiohal/EffectsFactoryHalInterface.h> |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 27 | #include <media/AudioResamplerPublic.h> |
Andy Hung | 068561c | 2017-01-03 17:09:32 -0800 | [diff] [blame] | 28 | #include <media/BufferProviders.h> |
Mikhail Naganov | 9fe9401 | 2016-10-14 14:57:40 -0700 | [diff] [blame] | 29 | #include <system/audio_effects/effect_downmix.h> |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 30 | #include <utils/Log.h> |
| 31 | |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 32 | #ifndef ARRAY_SIZE |
| 33 | #define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0])) |
| 34 | #endif |
| 35 | |
| 36 | namespace android { |
| 37 | |
| 38 | // ---------------------------------------------------------------------------- |
| 39 | |
| 40 | template <typename T> |
| 41 | static inline T min(const T& a, const T& b) |
| 42 | { |
| 43 | return a < b ? a : b; |
| 44 | } |
| 45 | |
| 46 | CopyBufferProvider::CopyBufferProvider(size_t inputFrameSize, |
| 47 | size_t outputFrameSize, size_t bufferFrameCount) : |
| 48 | mInputFrameSize(inputFrameSize), |
| 49 | mOutputFrameSize(outputFrameSize), |
| 50 | mLocalBufferFrameCount(bufferFrameCount), |
| 51 | mLocalBufferData(NULL), |
| 52 | mConsumed(0) |
| 53 | { |
| 54 | ALOGV("CopyBufferProvider(%p)(%zu, %zu, %zu)", this, |
| 55 | inputFrameSize, outputFrameSize, bufferFrameCount); |
| 56 | LOG_ALWAYS_FATAL_IF(inputFrameSize < outputFrameSize && bufferFrameCount == 0, |
| 57 | "Requires local buffer if inputFrameSize(%zu) < outputFrameSize(%zu)", |
| 58 | inputFrameSize, outputFrameSize); |
| 59 | if (mLocalBufferFrameCount) { |
| 60 | (void)posix_memalign(&mLocalBufferData, 32, mLocalBufferFrameCount * mOutputFrameSize); |
| 61 | } |
| 62 | mBuffer.frameCount = 0; |
| 63 | } |
| 64 | |
| 65 | CopyBufferProvider::~CopyBufferProvider() |
| 66 | { |
| 67 | ALOGV("~CopyBufferProvider(%p)", this); |
| 68 | if (mBuffer.frameCount != 0) { |
| 69 | mTrackBufferProvider->releaseBuffer(&mBuffer); |
| 70 | } |
| 71 | free(mLocalBufferData); |
| 72 | } |
| 73 | |
Glenn Kasten | d79072e | 2016-01-06 08:41:20 -0800 | [diff] [blame] | 74 | status_t CopyBufferProvider::getNextBuffer(AudioBufferProvider::Buffer *pBuffer) |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 75 | { |
Glenn Kasten | d79072e | 2016-01-06 08:41:20 -0800 | [diff] [blame] | 76 | //ALOGV("CopyBufferProvider(%p)::getNextBuffer(%p (%zu))", |
| 77 | // this, pBuffer, pBuffer->frameCount); |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 78 | if (mLocalBufferFrameCount == 0) { |
Glenn Kasten | d79072e | 2016-01-06 08:41:20 -0800 | [diff] [blame] | 79 | status_t res = mTrackBufferProvider->getNextBuffer(pBuffer); |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 80 | if (res == OK) { |
| 81 | copyFrames(pBuffer->raw, pBuffer->raw, pBuffer->frameCount); |
| 82 | } |
| 83 | return res; |
| 84 | } |
| 85 | if (mBuffer.frameCount == 0) { |
| 86 | mBuffer.frameCount = pBuffer->frameCount; |
Glenn Kasten | d79072e | 2016-01-06 08:41:20 -0800 | [diff] [blame] | 87 | status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer); |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 88 | // At one time an upstream buffer provider had |
| 89 | // res == OK and mBuffer.frameCount == 0, doesn't seem to happen now 7/18/2014. |
| 90 | // |
| 91 | // By API spec, if res != OK, then mBuffer.frameCount == 0. |
| 92 | // but there may be improper implementations. |
| 93 | ALOG_ASSERT(res == OK || mBuffer.frameCount == 0); |
| 94 | if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe. |
| 95 | pBuffer->raw = NULL; |
| 96 | pBuffer->frameCount = 0; |
| 97 | return res; |
| 98 | } |
| 99 | mConsumed = 0; |
| 100 | } |
| 101 | ALOG_ASSERT(mConsumed < mBuffer.frameCount); |
| 102 | size_t count = min(mLocalBufferFrameCount, mBuffer.frameCount - mConsumed); |
| 103 | count = min(count, pBuffer->frameCount); |
| 104 | pBuffer->raw = mLocalBufferData; |
| 105 | pBuffer->frameCount = count; |
| 106 | copyFrames(pBuffer->raw, (uint8_t*)mBuffer.raw + mConsumed * mInputFrameSize, |
| 107 | pBuffer->frameCount); |
| 108 | return OK; |
| 109 | } |
| 110 | |
| 111 | void CopyBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer) |
| 112 | { |
| 113 | //ALOGV("CopyBufferProvider(%p)::releaseBuffer(%p(%zu))", |
| 114 | // this, pBuffer, pBuffer->frameCount); |
| 115 | if (mLocalBufferFrameCount == 0) { |
| 116 | mTrackBufferProvider->releaseBuffer(pBuffer); |
| 117 | return; |
| 118 | } |
| 119 | // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount"); |
| 120 | mConsumed += pBuffer->frameCount; // TODO: update for efficiency to reuse existing content |
| 121 | if (mConsumed != 0 && mConsumed >= mBuffer.frameCount) { |
| 122 | mTrackBufferProvider->releaseBuffer(&mBuffer); |
| 123 | ALOG_ASSERT(mBuffer.frameCount == 0); |
| 124 | } |
| 125 | pBuffer->raw = NULL; |
| 126 | pBuffer->frameCount = 0; |
| 127 | } |
| 128 | |
| 129 | void CopyBufferProvider::reset() |
| 130 | { |
| 131 | if (mBuffer.frameCount != 0) { |
| 132 | mTrackBufferProvider->releaseBuffer(&mBuffer); |
| 133 | } |
| 134 | mConsumed = 0; |
| 135 | } |
| 136 | |
| 137 | DownmixerBufferProvider::DownmixerBufferProvider( |
| 138 | audio_channel_mask_t inputChannelMask, |
| 139 | audio_channel_mask_t outputChannelMask, audio_format_t format, |
| 140 | uint32_t sampleRate, int32_t sessionId, size_t bufferFrameCount) : |
| 141 | CopyBufferProvider( |
| 142 | audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(inputChannelMask), |
| 143 | audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(outputChannelMask), |
| 144 | bufferFrameCount) // set bufferFrameCount to 0 to do in-place |
| 145 | { |
Mikhail Naganov | 66916c2 | 2017-01-24 17:46:33 -0800 | [diff] [blame] | 146 | ALOGV("DownmixerBufferProvider(%p)(%#x, %#x, %#x %u %d %d)", |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 147 | this, inputChannelMask, outputChannelMask, format, |
Mikhail Naganov | 66916c2 | 2017-01-24 17:46:33 -0800 | [diff] [blame] | 148 | sampleRate, sessionId, (int)bufferFrameCount); |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 149 | if (!sIsMultichannelCapable) { |
| 150 | ALOGE("DownmixerBufferProvider() error: not multichannel capable"); |
| 151 | return; |
| 152 | } |
| 153 | mEffectsFactory = EffectsFactoryHalInterface::create(); |
Mikhail Naganov | 1dc9867 | 2016-08-18 17:50:29 -0700 | [diff] [blame] | 154 | if (mEffectsFactory == 0) { |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 155 | ALOGE("DownmixerBufferProvider() error: could not obtain the effects factory"); |
| 156 | return; |
| 157 | } |
| 158 | if (mEffectsFactory->createEffect(&sDwnmFxDesc.uuid, |
| 159 | sessionId, |
| 160 | SESSION_ID_INVALID_AND_IGNORED, |
| 161 | &mDownmixInterface) != 0) { |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 162 | ALOGE("DownmixerBufferProvider() error creating downmixer effect"); |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 163 | mDownmixInterface.clear(); |
| 164 | mEffectsFactory.clear(); |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 165 | return; |
| 166 | } |
| 167 | // channel input configuration will be overridden per-track |
| 168 | mDownmixConfig.inputCfg.channels = inputChannelMask; // FIXME: Should be bits |
| 169 | mDownmixConfig.outputCfg.channels = outputChannelMask; // FIXME: should be bits |
| 170 | mDownmixConfig.inputCfg.format = format; |
| 171 | mDownmixConfig.outputCfg.format = format; |
| 172 | mDownmixConfig.inputCfg.samplingRate = sampleRate; |
| 173 | mDownmixConfig.outputCfg.samplingRate = sampleRate; |
| 174 | mDownmixConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ; |
| 175 | mDownmixConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE; |
| 176 | // input and output buffer provider, and frame count will not be used as the downmix effect |
| 177 | // process() function is called directly (see DownmixerBufferProvider::getNextBuffer()) |
| 178 | mDownmixConfig.inputCfg.mask = EFFECT_CONFIG_SMP_RATE | EFFECT_CONFIG_CHANNELS | |
| 179 | EFFECT_CONFIG_FORMAT | EFFECT_CONFIG_ACC_MODE; |
| 180 | mDownmixConfig.outputCfg.mask = mDownmixConfig.inputCfg.mask; |
| 181 | |
Mikhail Naganov | 66916c2 | 2017-01-24 17:46:33 -0800 | [diff] [blame] | 182 | mInFrameSize = |
| 183 | audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(inputChannelMask); |
| 184 | mOutFrameSize = |
| 185 | audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(outputChannelMask); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 186 | status_t status; |
Kevin Rocard | 7588ff4 | 2018-01-08 11:11:30 -0800 | [diff] [blame] | 187 | status = mEffectsFactory->mirrorBuffer( |
Mikhail Naganov | 66916c2 | 2017-01-24 17:46:33 -0800 | [diff] [blame] | 188 | nullptr, mInFrameSize * bufferFrameCount, &mInBuffer); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 189 | if (status != 0) { |
| 190 | ALOGE("DownmixerBufferProvider() error %d while creating input buffer", status); |
| 191 | mDownmixInterface.clear(); |
| 192 | mEffectsFactory.clear(); |
| 193 | return; |
| 194 | } |
Kevin Rocard | 7588ff4 | 2018-01-08 11:11:30 -0800 | [diff] [blame] | 195 | status = mEffectsFactory->mirrorBuffer( |
Mikhail Naganov | 66916c2 | 2017-01-24 17:46:33 -0800 | [diff] [blame] | 196 | nullptr, mOutFrameSize * bufferFrameCount, &mOutBuffer); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 197 | if (status != 0) { |
| 198 | ALOGE("DownmixerBufferProvider() error %d while creating output buffer", status); |
| 199 | mInBuffer.clear(); |
| 200 | mDownmixInterface.clear(); |
| 201 | mEffectsFactory.clear(); |
| 202 | return; |
| 203 | } |
Mikhail Naganov | 2f60755 | 2017-01-11 16:09:03 -0800 | [diff] [blame] | 204 | mDownmixInterface->setInBuffer(mInBuffer); |
| 205 | mDownmixInterface->setOutBuffer(mOutBuffer); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 206 | |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 207 | int cmdStatus; |
| 208 | uint32_t replySize = sizeof(int); |
| 209 | |
| 210 | // Configure downmixer |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 211 | status = mDownmixInterface->command( |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 212 | EFFECT_CMD_SET_CONFIG /*cmdCode*/, sizeof(effect_config_t) /*cmdSize*/, |
| 213 | &mDownmixConfig /*pCmdData*/, |
| 214 | &replySize, &cmdStatus /*pReplyData*/); |
| 215 | if (status != 0 || cmdStatus != 0) { |
| 216 | ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while configuring downmixer", |
| 217 | status, cmdStatus); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 218 | mOutBuffer.clear(); |
| 219 | mInBuffer.clear(); |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 220 | mDownmixInterface.clear(); |
| 221 | mEffectsFactory.clear(); |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 222 | return; |
| 223 | } |
| 224 | |
| 225 | // Enable downmixer |
| 226 | replySize = sizeof(int); |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 227 | status = mDownmixInterface->command( |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 228 | EFFECT_CMD_ENABLE /*cmdCode*/, 0 /*cmdSize*/, NULL /*pCmdData*/, |
| 229 | &replySize, &cmdStatus /*pReplyData*/); |
| 230 | if (status != 0 || cmdStatus != 0) { |
| 231 | ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while enabling downmixer", |
| 232 | status, cmdStatus); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 233 | mOutBuffer.clear(); |
| 234 | mInBuffer.clear(); |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 235 | mDownmixInterface.clear(); |
| 236 | mEffectsFactory.clear(); |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 237 | return; |
| 238 | } |
| 239 | |
| 240 | // Set downmix type |
| 241 | // parameter size rounded for padding on 32bit boundary |
| 242 | const int psizePadded = ((sizeof(downmix_params_t) - 1)/sizeof(int) + 1) * sizeof(int); |
| 243 | const int downmixParamSize = |
| 244 | sizeof(effect_param_t) + psizePadded + sizeof(downmix_type_t); |
| 245 | effect_param_t * const param = (effect_param_t *) malloc(downmixParamSize); |
| 246 | param->psize = sizeof(downmix_params_t); |
| 247 | const downmix_params_t downmixParam = DOWNMIX_PARAM_TYPE; |
| 248 | memcpy(param->data, &downmixParam, param->psize); |
| 249 | const downmix_type_t downmixType = DOWNMIX_TYPE_FOLD; |
| 250 | param->vsize = sizeof(downmix_type_t); |
| 251 | memcpy(param->data + psizePadded, &downmixType, param->vsize); |
| 252 | replySize = sizeof(int); |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 253 | status = mDownmixInterface->command( |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 254 | EFFECT_CMD_SET_PARAM /* cmdCode */, downmixParamSize /* cmdSize */, |
| 255 | param /*pCmdData*/, &replySize, &cmdStatus /*pReplyData*/); |
| 256 | free(param); |
| 257 | if (status != 0 || cmdStatus != 0) { |
| 258 | ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while setting downmix type", |
| 259 | status, cmdStatus); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 260 | mOutBuffer.clear(); |
| 261 | mInBuffer.clear(); |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 262 | mDownmixInterface.clear(); |
| 263 | mEffectsFactory.clear(); |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 264 | return; |
| 265 | } |
| 266 | ALOGV("DownmixerBufferProvider() downmix type set to %d", (int) downmixType); |
| 267 | } |
| 268 | |
| 269 | DownmixerBufferProvider::~DownmixerBufferProvider() |
| 270 | { |
| 271 | ALOGV("~DownmixerBufferProvider (%p)", this); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 272 | if (mDownmixInterface != 0) { |
| 273 | mDownmixInterface->close(); |
| 274 | } |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 275 | } |
| 276 | |
| 277 | void DownmixerBufferProvider::copyFrames(void *dst, const void *src, size_t frames) |
| 278 | { |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 279 | mInBuffer->setExternalData(const_cast<void*>(src)); |
| 280 | mInBuffer->setFrameCount(frames); |
Mikhail Naganov | 66916c2 | 2017-01-24 17:46:33 -0800 | [diff] [blame] | 281 | mInBuffer->update(mInFrameSize * frames); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 282 | mOutBuffer->setFrameCount(frames); |
Mikhail Naganov | 66916c2 | 2017-01-24 17:46:33 -0800 | [diff] [blame] | 283 | mOutBuffer->setExternalData(dst); |
| 284 | if (dst != src) { |
| 285 | // Downmix may be accumulating, need to populate the output buffer |
| 286 | // with the dst data. |
| 287 | mOutBuffer->update(mOutFrameSize * frames); |
| 288 | } |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 289 | // may be in-place if src == dst. |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 290 | status_t res = mDownmixInterface->process(); |
| 291 | if (res == OK) { |
Mikhail Naganov | 66916c2 | 2017-01-24 17:46:33 -0800 | [diff] [blame] | 292 | mOutBuffer->commit(mOutFrameSize * frames); |
Mikhail Naganov | 022b995 | 2017-01-04 16:36:51 -0800 | [diff] [blame] | 293 | } else { |
| 294 | ALOGE("DownmixBufferProvider error %d", res); |
| 295 | } |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 296 | } |
| 297 | |
| 298 | /* call once in a pthread_once handler. */ |
| 299 | /*static*/ status_t DownmixerBufferProvider::init() |
| 300 | { |
| 301 | // find multichannel downmix effect if we have to play multichannel content |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 302 | sp<EffectsFactoryHalInterface> effectsFactory = EffectsFactoryHalInterface::create(); |
Mikhail Naganov | 1dc9867 | 2016-08-18 17:50:29 -0700 | [diff] [blame] | 303 | if (effectsFactory == 0) { |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 304 | ALOGE("AudioMixer() error: could not obtain the effects factory"); |
| 305 | return NO_INIT; |
| 306 | } |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 307 | uint32_t numEffects = 0; |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 308 | int ret = effectsFactory->queryNumberEffects(&numEffects); |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 309 | if (ret != 0) { |
| 310 | ALOGE("AudioMixer() error %d querying number of effects", ret); |
| 311 | return NO_INIT; |
| 312 | } |
| 313 | ALOGV("EffectQueryNumberEffects() numEffects=%d", numEffects); |
| 314 | |
| 315 | for (uint32_t i = 0 ; i < numEffects ; i++) { |
Mikhail Naganov | 4a3d5c2 | 2016-08-15 13:47:42 -0700 | [diff] [blame] | 316 | if (effectsFactory->getDescriptor(i, &sDwnmFxDesc) == 0) { |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 317 | ALOGV("effect %d is called %s", i, sDwnmFxDesc.name); |
| 318 | if (memcmp(&sDwnmFxDesc.type, EFFECT_UIID_DOWNMIX, sizeof(effect_uuid_t)) == 0) { |
| 319 | ALOGI("found effect \"%s\" from %s", |
| 320 | sDwnmFxDesc.name, sDwnmFxDesc.implementor); |
| 321 | sIsMultichannelCapable = true; |
| 322 | break; |
| 323 | } |
| 324 | } |
| 325 | } |
| 326 | ALOGW_IF(!sIsMultichannelCapable, "unable to find downmix effect"); |
| 327 | return NO_INIT; |
| 328 | } |
| 329 | |
| 330 | /*static*/ bool DownmixerBufferProvider::sIsMultichannelCapable = false; |
| 331 | /*static*/ effect_descriptor_t DownmixerBufferProvider::sDwnmFxDesc; |
| 332 | |
| 333 | RemixBufferProvider::RemixBufferProvider(audio_channel_mask_t inputChannelMask, |
| 334 | audio_channel_mask_t outputChannelMask, audio_format_t format, |
| 335 | size_t bufferFrameCount) : |
| 336 | CopyBufferProvider( |
| 337 | audio_bytes_per_sample(format) |
| 338 | * audio_channel_count_from_out_mask(inputChannelMask), |
| 339 | audio_bytes_per_sample(format) |
| 340 | * audio_channel_count_from_out_mask(outputChannelMask), |
| 341 | bufferFrameCount), |
| 342 | mFormat(format), |
| 343 | mSampleSize(audio_bytes_per_sample(format)), |
| 344 | mInputChannels(audio_channel_count_from_out_mask(inputChannelMask)), |
| 345 | mOutputChannels(audio_channel_count_from_out_mask(outputChannelMask)) |
| 346 | { |
| 347 | ALOGV("RemixBufferProvider(%p)(%#x, %#x, %#x) %zu %zu", |
| 348 | this, format, inputChannelMask, outputChannelMask, |
| 349 | mInputChannels, mOutputChannels); |
Andy Hung | 18aa270 | 2015-05-05 23:48:38 -0700 | [diff] [blame] | 350 | (void) memcpy_by_index_array_initialization_from_channel_mask( |
| 351 | mIdxAry, ARRAY_SIZE(mIdxAry), outputChannelMask, inputChannelMask); |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 352 | } |
| 353 | |
| 354 | void RemixBufferProvider::copyFrames(void *dst, const void *src, size_t frames) |
| 355 | { |
| 356 | memcpy_by_index_array(dst, mOutputChannels, |
| 357 | src, mInputChannels, mIdxAry, mSampleSize, frames); |
| 358 | } |
| 359 | |
| 360 | ReformatBufferProvider::ReformatBufferProvider(int32_t channelCount, |
| 361 | audio_format_t inputFormat, audio_format_t outputFormat, |
| 362 | size_t bufferFrameCount) : |
| 363 | CopyBufferProvider( |
| 364 | channelCount * audio_bytes_per_sample(inputFormat), |
| 365 | channelCount * audio_bytes_per_sample(outputFormat), |
| 366 | bufferFrameCount), |
| 367 | mChannelCount(channelCount), |
| 368 | mInputFormat(inputFormat), |
| 369 | mOutputFormat(outputFormat) |
| 370 | { |
| 371 | ALOGV("ReformatBufferProvider(%p)(%u, %#x, %#x)", |
| 372 | this, channelCount, inputFormat, outputFormat); |
| 373 | } |
| 374 | |
| 375 | void ReformatBufferProvider::copyFrames(void *dst, const void *src, size_t frames) |
| 376 | { |
| 377 | memcpy_by_audio_format(dst, mOutputFormat, src, mInputFormat, frames * mChannelCount); |
| 378 | } |
| 379 | |
Kevin Rocard | e053bfa | 2017-11-09 22:07:34 -0800 | [diff] [blame] | 380 | ClampFloatBufferProvider::ClampFloatBufferProvider(int32_t channelCount, size_t bufferFrameCount) : |
| 381 | CopyBufferProvider( |
| 382 | channelCount * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT), |
| 383 | channelCount * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT), |
| 384 | bufferFrameCount), |
| 385 | mChannelCount(channelCount) |
| 386 | { |
| 387 | ALOGV("ClampFloatBufferProvider(%p)(%u)", this, channelCount); |
| 388 | } |
| 389 | |
| 390 | void ClampFloatBufferProvider::copyFrames(void *dst, const void *src, size_t frames) |
| 391 | { |
| 392 | memcpy_to_float_from_float_with_clamping((float*)dst, (const float*)src, |
| 393 | frames * mChannelCount, |
| 394 | FLOAT_NOMINAL_RANGE_HEADROOM); |
| 395 | } |
| 396 | |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 397 | TimestretchBufferProvider::TimestretchBufferProvider(int32_t channelCount, |
Ricardo Garcia | 5a8a95d | 2015-04-18 14:47:04 -0700 | [diff] [blame] | 398 | audio_format_t format, uint32_t sampleRate, const AudioPlaybackRate &playbackRate) : |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 399 | mChannelCount(channelCount), |
| 400 | mFormat(format), |
| 401 | mSampleRate(sampleRate), |
| 402 | mFrameSize(channelCount * audio_bytes_per_sample(format)), |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 403 | mLocalBufferFrameCount(0), |
| 404 | mLocalBufferData(NULL), |
Ricardo Garcia | f097cae | 2015-04-13 12:17:21 -0700 | [diff] [blame] | 405 | mRemaining(0), |
Ricardo Garcia | 5a8a95d | 2015-04-18 14:47:04 -0700 | [diff] [blame] | 406 | mSonicStream(sonicCreateStream(sampleRate, mChannelCount)), |
Ricardo Garcia | 6c7f062 | 2015-04-30 18:39:16 -0700 | [diff] [blame] | 407 | mFallbackFailErrorShown(false), |
| 408 | mAudioPlaybackRateValid(false) |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 409 | { |
Ricardo Garcia | f097cae | 2015-04-13 12:17:21 -0700 | [diff] [blame] | 410 | LOG_ALWAYS_FATAL_IF(mSonicStream == NULL, |
| 411 | "TimestretchBufferProvider can't allocate Sonic stream"); |
Ricardo Garcia | 5a8a95d | 2015-04-18 14:47:04 -0700 | [diff] [blame] | 412 | |
| 413 | setPlaybackRate(playbackRate); |
| 414 | ALOGV("TimestretchBufferProvider(%p)(%u, %#x, %u %f %f %d %d)", |
| 415 | this, channelCount, format, sampleRate, playbackRate.mSpeed, |
| 416 | playbackRate.mPitch, playbackRate.mStretchMode, playbackRate.mFallbackMode); |
| 417 | mBuffer.frameCount = 0; |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | TimestretchBufferProvider::~TimestretchBufferProvider() |
| 421 | { |
| 422 | ALOGV("~TimestretchBufferProvider(%p)", this); |
Ricardo Garcia | f097cae | 2015-04-13 12:17:21 -0700 | [diff] [blame] | 423 | sonicDestroyStream(mSonicStream); |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 424 | if (mBuffer.frameCount != 0) { |
| 425 | mTrackBufferProvider->releaseBuffer(&mBuffer); |
| 426 | } |
| 427 | free(mLocalBufferData); |
| 428 | } |
| 429 | |
| 430 | status_t TimestretchBufferProvider::getNextBuffer( |
Glenn Kasten | d79072e | 2016-01-06 08:41:20 -0800 | [diff] [blame] | 431 | AudioBufferProvider::Buffer *pBuffer) |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 432 | { |
Glenn Kasten | d79072e | 2016-01-06 08:41:20 -0800 | [diff] [blame] | 433 | ALOGV("TimestretchBufferProvider(%p)::getNextBuffer(%p (%zu))", |
| 434 | this, pBuffer, pBuffer->frameCount); |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 435 | |
| 436 | // BYPASS |
Glenn Kasten | d79072e | 2016-01-06 08:41:20 -0800 | [diff] [blame] | 437 | //return mTrackBufferProvider->getNextBuffer(pBuffer); |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 438 | |
| 439 | // check if previously processed data is sufficient. |
| 440 | if (pBuffer->frameCount <= mRemaining) { |
| 441 | ALOGV("previous sufficient"); |
| 442 | pBuffer->raw = mLocalBufferData; |
| 443 | return OK; |
| 444 | } |
| 445 | |
| 446 | // do we need to resize our buffer? |
| 447 | if (pBuffer->frameCount > mLocalBufferFrameCount) { |
| 448 | void *newmem; |
| 449 | if (posix_memalign(&newmem, 32, pBuffer->frameCount * mFrameSize) == OK) { |
| 450 | if (mRemaining != 0) { |
| 451 | memcpy(newmem, mLocalBufferData, mRemaining * mFrameSize); |
| 452 | } |
| 453 | free(mLocalBufferData); |
| 454 | mLocalBufferData = newmem; |
| 455 | mLocalBufferFrameCount = pBuffer->frameCount; |
| 456 | } |
| 457 | } |
| 458 | |
| 459 | // need to fetch more data |
| 460 | const size_t outputDesired = pBuffer->frameCount - mRemaining; |
Andy Hung | 6d62669 | 2015-08-21 12:53:46 -0700 | [diff] [blame] | 461 | size_t dstAvailable; |
| 462 | do { |
| 463 | mBuffer.frameCount = mPlaybackRate.mSpeed == AUDIO_TIMESTRETCH_SPEED_NORMAL |
| 464 | ? outputDesired : outputDesired * mPlaybackRate.mSpeed + 1; |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 465 | |
Glenn Kasten | d79072e | 2016-01-06 08:41:20 -0800 | [diff] [blame] | 466 | status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer); |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 467 | |
Andy Hung | 6d62669 | 2015-08-21 12:53:46 -0700 | [diff] [blame] | 468 | ALOG_ASSERT(res == OK || mBuffer.frameCount == 0); |
| 469 | if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe. |
| 470 | ALOGV("upstream provider cannot provide data"); |
| 471 | if (mRemaining == 0) { |
| 472 | pBuffer->raw = NULL; |
| 473 | pBuffer->frameCount = 0; |
| 474 | return res; |
| 475 | } else { // return partial count |
| 476 | pBuffer->raw = mLocalBufferData; |
| 477 | pBuffer->frameCount = mRemaining; |
| 478 | return OK; |
| 479 | } |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 480 | } |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 481 | |
Andy Hung | 6d62669 | 2015-08-21 12:53:46 -0700 | [diff] [blame] | 482 | // time-stretch the data |
| 483 | dstAvailable = min(mLocalBufferFrameCount - mRemaining, outputDesired); |
| 484 | size_t srcAvailable = mBuffer.frameCount; |
| 485 | processFrames((uint8_t*)mLocalBufferData + mRemaining * mFrameSize, &dstAvailable, |
| 486 | mBuffer.raw, &srcAvailable); |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 487 | |
Andy Hung | 6d62669 | 2015-08-21 12:53:46 -0700 | [diff] [blame] | 488 | // release all data consumed |
| 489 | mBuffer.frameCount = srcAvailable; |
| 490 | mTrackBufferProvider->releaseBuffer(&mBuffer); |
| 491 | } while (dstAvailable == 0); // try until we get output data or upstream provider fails. |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 492 | |
| 493 | // update buffer vars with the actual data processed and return with buffer |
| 494 | mRemaining += dstAvailable; |
| 495 | |
| 496 | pBuffer->raw = mLocalBufferData; |
| 497 | pBuffer->frameCount = mRemaining; |
| 498 | |
| 499 | return OK; |
| 500 | } |
| 501 | |
| 502 | void TimestretchBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer) |
| 503 | { |
| 504 | ALOGV("TimestretchBufferProvider(%p)::releaseBuffer(%p (%zu))", |
| 505 | this, pBuffer, pBuffer->frameCount); |
| 506 | |
| 507 | // BYPASS |
| 508 | //return mTrackBufferProvider->releaseBuffer(pBuffer); |
| 509 | |
| 510 | // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount"); |
| 511 | if (pBuffer->frameCount < mRemaining) { |
| 512 | memcpy(mLocalBufferData, |
| 513 | (uint8_t*)mLocalBufferData + pBuffer->frameCount * mFrameSize, |
| 514 | (mRemaining - pBuffer->frameCount) * mFrameSize); |
| 515 | mRemaining -= pBuffer->frameCount; |
| 516 | } else if (pBuffer->frameCount == mRemaining) { |
| 517 | mRemaining = 0; |
| 518 | } else { |
| 519 | LOG_ALWAYS_FATAL("Releasing more frames(%zu) than available(%zu)", |
| 520 | pBuffer->frameCount, mRemaining); |
| 521 | } |
| 522 | |
| 523 | pBuffer->raw = NULL; |
| 524 | pBuffer->frameCount = 0; |
| 525 | } |
| 526 | |
| 527 | void TimestretchBufferProvider::reset() |
| 528 | { |
| 529 | mRemaining = 0; |
| 530 | } |
| 531 | |
Ricardo Garcia | 5a8a95d | 2015-04-18 14:47:04 -0700 | [diff] [blame] | 532 | status_t TimestretchBufferProvider::setPlaybackRate(const AudioPlaybackRate &playbackRate) |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 533 | { |
Ricardo Garcia | 5a8a95d | 2015-04-18 14:47:04 -0700 | [diff] [blame] | 534 | mPlaybackRate = playbackRate; |
| 535 | mFallbackFailErrorShown = false; |
| 536 | sonicSetSpeed(mSonicStream, mPlaybackRate.mSpeed); |
Ricardo Garcia | f097cae | 2015-04-13 12:17:21 -0700 | [diff] [blame] | 537 | //TODO: pitch is ignored for now |
Ricardo Garcia | 5a8a95d | 2015-04-18 14:47:04 -0700 | [diff] [blame] | 538 | //TODO: optimize: if parameters are the same, don't do any extra computation. |
Ricardo Garcia | 6c7f062 | 2015-04-30 18:39:16 -0700 | [diff] [blame] | 539 | |
| 540 | mAudioPlaybackRateValid = isAudioPlaybackRateValid(mPlaybackRate); |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 541 | return OK; |
| 542 | } |
| 543 | |
| 544 | void TimestretchBufferProvider::processFrames(void *dstBuffer, size_t *dstFrames, |
| 545 | const void *srcBuffer, size_t *srcFrames) |
| 546 | { |
| 547 | ALOGV("processFrames(%zu %zu) remaining(%zu)", *dstFrames, *srcFrames, mRemaining); |
| 548 | // Note dstFrames is the required number of frames. |
| 549 | |
Ricardo Garcia | 6c7f062 | 2015-04-30 18:39:16 -0700 | [diff] [blame] | 550 | if (!mAudioPlaybackRateValid) { |
Ricardo Garcia | 5a8a95d | 2015-04-18 14:47:04 -0700 | [diff] [blame] | 551 | //fallback mode |
Andy Hung | cf8d2c8 | 2016-08-10 16:02:01 -0700 | [diff] [blame] | 552 | // Ensure consumption from src is as expected. |
| 553 | // TODO: add logic to track "very accurate" consumption related to speed, original sampling |
| 554 | // rate, actual frames processed. |
| 555 | |
| 556 | const size_t targetSrc = *dstFrames * mPlaybackRate.mSpeed; |
| 557 | if (*srcFrames < targetSrc) { // limit dst frames to that possible |
| 558 | *dstFrames = *srcFrames / mPlaybackRate.mSpeed; |
| 559 | } else if (*srcFrames > targetSrc + 1) { |
| 560 | *srcFrames = targetSrc + 1; |
| 561 | } |
Ricardo Garcia | 5a8a95d | 2015-04-18 14:47:04 -0700 | [diff] [blame] | 562 | if (*dstFrames > 0) { |
| 563 | switch(mPlaybackRate.mFallbackMode) { |
| 564 | case AUDIO_TIMESTRETCH_FALLBACK_CUT_REPEAT: |
| 565 | if (*dstFrames <= *srcFrames) { |
| 566 | size_t copySize = mFrameSize * *dstFrames; |
| 567 | memcpy(dstBuffer, srcBuffer, copySize); |
| 568 | } else { |
| 569 | // cyclically repeat the source. |
| 570 | for (size_t count = 0; count < *dstFrames; count += *srcFrames) { |
| 571 | size_t remaining = min(*srcFrames, *dstFrames - count); |
| 572 | memcpy((uint8_t*)dstBuffer + mFrameSize * count, |
| 573 | srcBuffer, mFrameSize * remaining); |
| 574 | } |
| 575 | } |
| 576 | break; |
| 577 | case AUDIO_TIMESTRETCH_FALLBACK_DEFAULT: |
| 578 | case AUDIO_TIMESTRETCH_FALLBACK_MUTE: |
| 579 | memset(dstBuffer,0, mFrameSize * *dstFrames); |
| 580 | break; |
| 581 | case AUDIO_TIMESTRETCH_FALLBACK_FAIL: |
| 582 | default: |
| 583 | if(!mFallbackFailErrorShown) { |
| 584 | ALOGE("invalid parameters in TimestretchBufferProvider fallbackMode:%d", |
| 585 | mPlaybackRate.mFallbackMode); |
| 586 | mFallbackFailErrorShown = true; |
| 587 | } |
| 588 | break; |
| 589 | } |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 590 | } |
Ricardo Garcia | 5a8a95d | 2015-04-18 14:47:04 -0700 | [diff] [blame] | 591 | } else { |
| 592 | switch (mFormat) { |
| 593 | case AUDIO_FORMAT_PCM_FLOAT: |
| 594 | if (sonicWriteFloatToStream(mSonicStream, (float*)srcBuffer, *srcFrames) != 1) { |
| 595 | ALOGE("sonicWriteFloatToStream cannot realloc"); |
| 596 | *srcFrames = 0; // cannot consume all of srcBuffer |
| 597 | } |
| 598 | *dstFrames = sonicReadFloatFromStream(mSonicStream, (float*)dstBuffer, *dstFrames); |
| 599 | break; |
| 600 | case AUDIO_FORMAT_PCM_16_BIT: |
| 601 | if (sonicWriteShortToStream(mSonicStream, (short*)srcBuffer, *srcFrames) != 1) { |
| 602 | ALOGE("sonicWriteShortToStream cannot realloc"); |
| 603 | *srcFrames = 0; // cannot consume all of srcBuffer |
| 604 | } |
| 605 | *dstFrames = sonicReadShortFromStream(mSonicStream, (short*)dstBuffer, *dstFrames); |
| 606 | break; |
| 607 | default: |
| 608 | // could also be caught on construction |
| 609 | LOG_ALWAYS_FATAL("invalid format %#x for TimestretchBufferProvider", mFormat); |
Ricardo Garcia | f097cae | 2015-04-13 12:17:21 -0700 | [diff] [blame] | 610 | } |
Andy Hung | c5656cc | 2015-03-26 19:04:33 -0700 | [diff] [blame] | 611 | } |
| 612 | } |
jiabin | dce8f8c | 2018-12-10 17:49:31 -0800 | [diff] [blame^] | 613 | |
| 614 | AdjustChannelsBufferProvider::AdjustChannelsBufferProvider(audio_format_t format, |
| 615 | size_t inChannelCount, size_t outChannelCount, size_t frameCount) : |
| 616 | CopyBufferProvider( |
| 617 | audio_bytes_per_frame(inChannelCount, format), |
| 618 | audio_bytes_per_frame(outChannelCount, format), |
| 619 | frameCount), |
| 620 | mFormat(format), |
| 621 | mInChannelCount(inChannelCount), |
| 622 | mOutChannelCount(outChannelCount), |
| 623 | mSampleSizeInBytes(audio_bytes_per_sample(format)) |
| 624 | { |
| 625 | ALOGV("AdjustBufferProvider(%p)(%#x, %zu, %zu, %zu)", |
| 626 | this, format, inChannelCount, outChannelCount, frameCount); |
| 627 | } |
| 628 | |
| 629 | void AdjustChannelsBufferProvider::copyFrames(void *dst, const void *src, size_t frames) |
| 630 | { |
| 631 | adjust_channels(src, mInChannelCount, dst, mOutChannelCount, mSampleSizeInBytes, |
| 632 | frames * mInChannelCount * mSampleSizeInBytes); |
| 633 | } |
| 634 | |
| 635 | AdjustChannelsNonDestructiveBufferProvider::AdjustChannelsNonDestructiveBufferProvider( |
| 636 | audio_format_t format, size_t inChannelCount, size_t outChannelCount, |
| 637 | audio_format_t contractedFormat, size_t contractedFrameCount, void* contractedBuffer) : |
| 638 | CopyBufferProvider( |
| 639 | audio_bytes_per_frame(inChannelCount, format), |
| 640 | audio_bytes_per_frame(outChannelCount, format), |
| 641 | 0 /*bufferFrameCount*/), |
| 642 | mFormat(format), |
| 643 | mInChannelCount(inChannelCount), |
| 644 | mOutChannelCount(outChannelCount), |
| 645 | mSampleSizeInBytes(audio_bytes_per_sample(format)), |
| 646 | mContractedChannelCount(inChannelCount - outChannelCount), |
| 647 | mContractedFormat(contractedFormat), |
| 648 | mContractedFrameCount(contractedFrameCount), |
| 649 | mContractedBuffer(contractedBuffer), |
| 650 | mContractedWrittenFrames(0) |
| 651 | { |
| 652 | ALOGV("AdjustChannelsNonDestructiveBufferProvider(%p)(%#x, %zu, %zu, %#x, %p)", |
| 653 | this, format, inChannelCount, outChannelCount, contractedFormat, contractedBuffer); |
| 654 | if (mContractedFormat != AUDIO_FORMAT_INVALID && mInChannelCount > mOutChannelCount) { |
| 655 | mContractedFrameSize = audio_bytes_per_frame(mContractedChannelCount, mContractedFormat); |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | status_t AdjustChannelsNonDestructiveBufferProvider::getNextBuffer( |
| 660 | AudioBufferProvider::Buffer* pBuffer) |
| 661 | { |
| 662 | const size_t outFramesLeft = mContractedFrameCount - mContractedWrittenFrames; |
| 663 | if (outFramesLeft < pBuffer->frameCount) { |
| 664 | // Restrict the frame count so that we don't write over the size of the output buffer. |
| 665 | pBuffer->frameCount = outFramesLeft; |
| 666 | } |
| 667 | return CopyBufferProvider::getNextBuffer(pBuffer); |
| 668 | } |
| 669 | |
| 670 | void AdjustChannelsNonDestructiveBufferProvider::copyFrames( |
| 671 | void *dst, const void *src, size_t frames) |
| 672 | { |
| 673 | adjust_channels_non_destructive(src, mInChannelCount, dst, mOutChannelCount, mSampleSizeInBytes, |
| 674 | frames * mInChannelCount * mSampleSizeInBytes); |
| 675 | if (mContractedFormat != AUDIO_FORMAT_INVALID && mContractedBuffer != NULL |
| 676 | && mInChannelCount > mOutChannelCount) { |
| 677 | const size_t contractedIdx = frames * mOutChannelCount * mSampleSizeInBytes; |
| 678 | memcpy_by_audio_format( |
| 679 | (uint8_t*)mContractedBuffer + mContractedWrittenFrames * mContractedFrameSize, |
| 680 | mContractedFormat, (uint8_t*)dst + contractedIdx, mFormat, |
| 681 | mContractedChannelCount * frames); |
| 682 | mContractedWrittenFrames += frames; |
| 683 | } |
| 684 | } |
| 685 | |
| 686 | void AdjustChannelsNonDestructiveBufferProvider::reset() |
| 687 | { |
| 688 | mContractedWrittenFrames = 0; |
| 689 | CopyBufferProvider::reset(); |
| 690 | } |
Andy Hung | 857d5a2 | 2015-03-26 18:46:00 -0700 | [diff] [blame] | 691 | // ---------------------------------------------------------------------------- |
| 692 | } // namespace android |