IOutputMixExt.cpp revision 4f064c143ef2b26347130a49788116b5d2e1252a
1b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten/* 2b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * Copyright (C) 2010 The Android Open Source Project 3b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * 4b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * Licensed under the Apache License, Version 2.0 (the "License"); 5b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * you may not use this file except in compliance with the License. 6b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * You may obtain a copy of the License at 7b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * 8b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * http://www.apache.org/licenses/LICENSE-2.0 9b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * 10b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * Unless required by applicable law or agreed to in writing, software 11b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * distributed under the License is distributed on an "AS IS" BASIS, 12b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * See the License for the specific language governing permissions and 14b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten * limitations under the License. 15b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten */ 16b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten 17b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten/* OutputMixExt implementation */ 18b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten 19b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten#include "sles_allinclusive.h" 20e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten#include <math.h> 21b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten 22b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten#ifdef USE_OUTPUTMIXEXT 23b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten 24b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten// Used by SDL but not specific to or dependent on SDL 25b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten 26343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten/** \brief Summary of the gain, as an optimization for the mixer */ 27e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten 2840d1c40832a448e23d0bb37512aee53222575c2eGlenn Kastentypedef enum { 29e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten GAIN_MUTE = 0, // mValue == 0.0f within epsilon 30e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten GAIN_UNITY = 1, // mValue == 1.0f within epsilon 31e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten GAIN_OTHER = 2 // 0.0f < mValue < 1.0f 3240d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten} Summary; 3340d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten 34ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 35343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten/** \brief Check whether a track has any data for us to read */ 364b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 37369f3138f19f7102bf0f98b890ab84c8df633a93Glenn Kastenstatic SLboolean track_check(Track *track) 384b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten{ 394b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten SLboolean trackHasData = SL_BOOLEAN_FALSE; 404b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 414b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten CAudioPlayer *audioPlayer = track->mAudioPlayer; 424b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (NULL != audioPlayer) { 434b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 444b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // track is initialized 454b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 464b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten object_lock_exclusive(&audioPlayer->mObject); 474b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 484b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten SLboolean doBroadcast = SL_BOOLEAN_FALSE; 494b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten const BufferHeader *oldFront; 504b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 514b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (audioPlayer->mBufferQueue.mClearRequested) { 524b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // application thread(s) that call BufferQueue::Clear while mixer is active 534b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // is active will block synchronously until mixer acknowledges the Clear request 544b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten audioPlayer->mBufferQueue.mFront = &audioPlayer->mBufferQueue.mArray[0]; 554b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten audioPlayer->mBufferQueue.mRear = &audioPlayer->mBufferQueue.mArray[0]; 564b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten audioPlayer->mBufferQueue.mState.count = 0; 574f064c143ef2b26347130a49788116b5d2e1252aGlenn Kasten audioPlayer->mBufferQueue.mState.playIndex = 0; 584b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten audioPlayer->mBufferQueue.mClearRequested = SL_BOOLEAN_FALSE; 594b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten track->mReader = NULL; 604b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten track->mAvail = 0; 614b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten doBroadcast = SL_BOOLEAN_TRUE; 624b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten } 634b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 644b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten switch (audioPlayer->mPlay.mState) { 654b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 664b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten case SL_PLAYSTATE_PLAYING: // continue playing current track data 674b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (0 < track->mAvail) { 684b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten trackHasData = SL_BOOLEAN_TRUE; 694b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten break; 704b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten } 714b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 724b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // try to get another buffer from queue 734b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten oldFront = audioPlayer->mBufferQueue.mFront; 744b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (oldFront != audioPlayer->mBufferQueue.mRear) { 754b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten assert(0 < audioPlayer->mBufferQueue.mState.count); 764b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten track->mReader = oldFront->mBuffer; 774b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten track->mAvail = oldFront->mSize; 784b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // note that the buffer stays on the queue while we are reading 794b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten audioPlayer->mPlay.mState = SL_PLAYSTATE_PLAYING; 804b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten trackHasData = SL_BOOLEAN_TRUE; 814b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten } else { 824b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // no buffers on queue, so playable but not playing 834b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // NTH should be able to call a desperation callback when completely starved, 844b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // or call less often than every buffer based on high/low water-marks 854b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten } 864b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten break; 874b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 884b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten case SL_PLAYSTATE_STOPPING: // application thread(s) called Play::SetPlayState(STOPPED) 894b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten audioPlayer->mPlay.mPosition = (SLmillisecond) 0; 904b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten audioPlayer->mPlay.mState = SL_PLAYSTATE_STOPPED; 914b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten oldFront = audioPlayer->mBufferQueue.mFront; 924b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (oldFront != audioPlayer->mBufferQueue.mRear) { 934b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten assert(0 < audioPlayer->mBufferQueue.mState.count); 944b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten track->mReader = oldFront->mBuffer; 954b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten track->mAvail = oldFront->mSize; 964b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten } 974b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten doBroadcast = SL_BOOLEAN_TRUE; 984b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten break; 994b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 1004b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten case SL_PLAYSTATE_STOPPED: // idle 1014b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten case SL_PLAYSTATE_PAUSED: // idle 1024b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten break; 1034b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 1044b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten default: 1054b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten assert(SL_BOOLEAN_FALSE); 1064b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten break; 1074b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten } 1084b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 1094b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (doBroadcast) 1104b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten object_cond_broadcast(&audioPlayer->mObject); 1114b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 1124b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten object_unlock_exclusive(&audioPlayer->mObject); 1134b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 1144b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten } 1154b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 1164b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten return trackHasData; 1174b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 1184b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten} 1194b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 120343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 121343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten/** \brief This is the mixer for SDL: fill the specified 16-bit stereo PCM buffer */ 122343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 123e5d006b298ce7683d66f7ec86136403cf5fb20d6Glenn Kastenvoid IOutputMixExt_FillBuffer(SLOutputMixExtItf self, void *pBuffer, SLuint32 size) 124b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten{ 125ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten SL_ENTER_INTERFACE_VOID 126ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 127b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten // Force to be a multiple of a frame, assumes stereo 16-bit PCM 128b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten size &= ~3; 129daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten IOutputMixExt *thisExt = (IOutputMixExt *) self; 130d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten IOutputMix *this = &((COutputMix *) InterfaceToIObject(thisExt))->mOutputMix; 131b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten unsigned activeMask = this->mActiveMask; 132b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten SLboolean mixBufferHasData = SL_BOOLEAN_FALSE; 133d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten while (activeMask) { 134d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten unsigned i = ctz(activeMask); 135d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten assert(MAX_TRACK > i); 136d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten activeMask &= ~(1 << i); 137369f3138f19f7102bf0f98b890ab84c8df633a93Glenn Kasten Track *track = &this->mTracks[i]; 1384b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 139b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten // track is allocated 1404b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 1414b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (!track_check(track)) 142b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten continue; 1434b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten 144b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten // track is playing 145b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten void *dstWriter = pBuffer; 146b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten unsigned desired = size; 147b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten SLboolean trackContributedToMix = SL_BOOLEAN_FALSE; 148e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten float gains[STEREO_CHANNELS]; 149e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten Summary summaries[STEREO_CHANNELS]; 150e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten unsigned channel; 151e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten for (channel = 0; channel < STEREO_CHANNELS; ++channel) { 152e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten float gain = track->mGains[channel]; 153e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten gains[channel] = gain; 154e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten Summary summary; 155e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (gain <= 0.001) 156e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten summary = GAIN_MUTE; 157e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten else if (gain >= 0.999) 158e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten summary = GAIN_UNITY; 159e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten else 160e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten summary = GAIN_OTHER; 161e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten summaries[channel] = summary; 1626a357b8fa57b0bc1557cd5ab9f9fb86aabaaa18cGlenn Kasten } 163b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten while (desired > 0) { 164b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten unsigned actual = desired; 165b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten if (track->mAvail < actual) 166b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten actual = track->mAvail; 167b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten // force actual to be a frame multiple 168b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten if (actual > 0) { 169b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten assert(NULL != track->mReader); 170276cab2d983b892d1b634474b6249f6bec400c76Glenn Kasten stereo *mixBuffer = (stereo *) dstWriter; 171276cab2d983b892d1b634474b6249f6bec400c76Glenn Kasten const stereo *source = (const stereo *) track->mReader; 172276cab2d983b892d1b634474b6249f6bec400c76Glenn Kasten unsigned j; 173e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (GAIN_MUTE != summaries[0] || GAIN_MUTE != summaries[1]) { 17440d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten if (mixBufferHasData) { 17540d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten // apply gain during add 176e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (GAIN_UNITY != summaries[0] || GAIN_UNITY != summaries[1]) { 17740d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten for (j = 0; j < actual; j += sizeof(stereo), ++mixBuffer, ++source) { 178e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten mixBuffer->left += (short) (source->left * track->mGains[0]); 179e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten mixBuffer->right += (short) (source->right * track->mGains[1]); 18040d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten } 18140d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten // no gain adjustment needed, so do a simple add 18240d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten } else { 18340d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten for (j = 0; j < actual; j += sizeof(stereo), ++mixBuffer, ++source) { 18440d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten mixBuffer->left += source->left; 18540d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten mixBuffer->right += source->right; 18640d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten } 18740d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten } 18840d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten } else { 18940d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten // apply gain during copy 190e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (GAIN_UNITY != summaries[0] || GAIN_UNITY != summaries[1]) { 19140d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten for (j = 0; j < actual; j += sizeof(stereo), ++mixBuffer, ++source) { 192e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten mixBuffer->left = (short) (source->left * track->mGains[0]); 193e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten mixBuffer->right = (short) (source->right * track->mGains[1]); 19440d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten } 19540d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten // no gain adjustment needed, so do a simple copy 19640d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten } else { 19740d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten memcpy(dstWriter, track->mReader, actual); 19840d1c40832a448e23d0bb37512aee53222575c2eGlenn Kasten } 199276cab2d983b892d1b634474b6249f6bec400c76Glenn Kasten } 200b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten trackContributedToMix = SL_BOOLEAN_TRUE; 201b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten } 202b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten dstWriter = (char *) dstWriter + actual; 203b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten desired -= actual; 204b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten track->mReader = (char *) track->mReader + actual; 205b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten track->mAvail -= actual; 206b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten if (track->mAvail == 0) { 2074b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten IBufferQueue *bufferQueue = &track->mAudioPlayer->mBufferQueue; 2084b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten interface_lock_exclusive(bufferQueue); 2094b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten const BufferHeader *oldFront, *newFront, *rear; 2104b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten oldFront = bufferQueue->mFront; 2114b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten rear = bufferQueue->mRear; 2124b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // a buffer stays on queue while playing, so it better still be there 2134b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten assert(oldFront != rear); 2144b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten newFront = oldFront; 2154b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (++newFront == &bufferQueue->mArray[bufferQueue->mNumBuffers + 1]) 2164b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten newFront = bufferQueue->mArray; 2174b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten bufferQueue->mFront = (BufferHeader *) newFront; 2184b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten assert(0 < bufferQueue->mState.count); 2194b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten --bufferQueue->mState.count; 2204b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (newFront != rear) { 2214b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // we don't acknowledge application requests between buffers 2224b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // within the same mixer frame 223b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten assert(0 < bufferQueue->mState.count); 2244b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten track->mReader = newFront->mBuffer; 2254b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten track->mAvail = newFront->mSize; 2264b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten } 2274b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // else we would set play state to playable but not playing during next mixer 2284b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // frame if the queue is still empty at that time 2294b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten ++bufferQueue->mState.playIndex; 2304b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten slBufferQueueCallback callback = bufferQueue->mCallback; 2314b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten void *context = bufferQueue->mContext; 2324b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten interface_unlock_exclusive(bufferQueue); 2334b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // The callback function is called on each buffer completion 2344b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (NULL != callback) { 2354b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten (*callback)((SLBufferQueueItf) bufferQueue, context); 2364b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // Maybe it enqueued another buffer, or maybe it didn't. 2374b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // We will find out later during the next mixer frame. 238b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten } 239b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten } 240e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten // no lock, but safe b/c noone else updates this field 241e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten track->mFrameCounter += actual >> 2; // sizeof(short) * STEREO_CHANNELS 2427a79f519d89eb0e1a5b3f4005484b16d6854d7e2Glenn Kasten // NTH Calling the callback too often, should depend on requested update period 2434b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // FIXME need a lock to get these pointers, and called too often 2444b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (track->mAudioPlayer->mPlay.mCallback) 2454b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten (*track->mAudioPlayer->mPlay.mCallback)(&track->mAudioPlayer->mPlay.mItf, 2464b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten track->mAudioPlayer->mPlay.mContext, SL_PLAYEVENT_HEADMOVING); 247b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten continue; 248b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten } 2494b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // we need more data: desired > 0 but actual == 0 2504b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten if (track_check(track)) 2514b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten continue; 2524b65ef9efdf5aba01bea89d8cdd64f500560a28dGlenn Kasten // underflow: clear out rest of partial buffer (NTH synthesize comfort noise) 253b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten if (!mixBufferHasData && trackContributedToMix) 254b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten memset(dstWriter, 0, actual); 255b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten break; 256b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten } 257b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten if (trackContributedToMix) 258b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten mixBufferHasData = SL_BOOLEAN_TRUE; 259b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten } 260b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten // No active tracks, so output silence 261b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten if (!mixBufferHasData) 262b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten memset(pBuffer, 0, size); 263ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 264ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten SL_LEAVE_INTERFACE_VOID 265b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten} 266b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten 267ed46c29d6a09112dbbf584c82953f63289596fd6Glenn Kasten 268b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kastenstatic const struct SLOutputMixExtItf_ IOutputMixExt_Itf = { 269b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten IOutputMixExt_FillBuffer 270b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten}; 271b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten 272b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kastenvoid IOutputMixExt_init(void *self) 273b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten{ 274b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten IOutputMixExt *this = (IOutputMixExt *) self; 275b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten this->mItf = &IOutputMixExt_Itf; 276b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten} 277b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten 278343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 279343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten/** \brief Called by Object::Destroy for an AudioPlayer to release the associated track */ 280343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 281343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kastenvoid IOutputMixExt_Destroy(CAudioPlayer *this) 282343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten{ 283343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten COutputMix *outputMix = this->mOutputMix; 284343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten if (NULL != outputMix) { 285343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten Track *track = this->mTrack; 286343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten assert(NULL != track); 287343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten assert(track->mAudioPlayer == this); 288343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten unsigned i = track - outputMix->mOutputMix.mTracks; 289343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten assert( /* 0 <= i && */ i < MAX_TRACK); 290343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten unsigned mask = 1 << i; 291343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten // FIXME deadlock possible here due to undocumented lock ordering 292343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten object_lock_exclusive(&outputMix->mObject); 293343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten // FIXME how can we be sure the mixer is not reading from this track right now? 294343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten track->mAudioPlayer = NULL; 295343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten assert(outputMix->mOutputMix.mActiveMask & mask); 296343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten outputMix->mOutputMix.mActiveMask &= ~mask; 297343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten object_unlock_exclusive(&outputMix->mObject); 298343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten this->mTrack = NULL; 299343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten } 300343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten} 301343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 302343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 303343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten/** \brief Called by Engine::CreateAudioPlayer to allocate a track */ 304343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 305acd88797a1d3b8225bab888d29036e245f275be5Glenn KastenSLresult IOutputMixExt_checkAudioPlayerSourceSink(CAudioPlayer *this) 306daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten{ 307e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten this->mTrack = NULL; 308acd88797a1d3b8225bab888d29036e245f275be5Glenn Kasten const SLDataSink *pAudioSnk = &this->mDataSink.u.mSink; 309369f3138f19f7102bf0f98b890ab84c8df633a93Glenn Kasten Track *track = NULL; 310daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten switch (*(SLuint32 *)pAudioSnk->pLocator) { 311daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten case SL_DATALOCATOR_OUTPUTMIX: 312daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten { 313daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten // pAudioSnk->pFormat is ignored 314e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten IOutputMix *om = &((COutputMix *) ((SLDataLocator_OutputMix *) 315e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten pAudioSnk->pLocator)->outputMix)->mOutputMix; 316daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten // allocate an entry within OutputMix for this track 317d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten interface_lock_exclusive(om); 318d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten unsigned availMask = ~om->mActiveMask; 319d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten if (!availMask) { 320d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten interface_unlock_exclusive(om); 321d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten // All track slots full in output mix 322daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten return SL_RESULT_MEMORY_FAILURE; 323daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten } 324d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten unsigned i = ctz(availMask); 325d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten assert(MAX_TRACK > i); 326d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten om->mActiveMask |= 1 << i; 327d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten track = &om->mTracks[i]; 328276cab2d983b892d1b634474b6249f6bec400c76Glenn Kasten track->mAudioPlayer = NULL; // only field that is accessed before full initialization 329d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten interface_unlock_exclusive(om); 330e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten this->mTrack = track; 331daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten } 332daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten break; 333daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten default: 334daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten return SL_RESULT_CONTENT_UNSUPPORTED; 335daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten } 336daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten 337d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten // FIXME Wrong place for this initialization; should first pre-allocate a track slot 338d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten // using OutputMixExt.mTrackCount, then initialize full audio player, then do track bit 339d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten // allocation, initialize rest of track, and doubly-link track to player (currently single). 340d07ed7df4ec9338f97f12627690d58ed9b34f25bGlenn Kasten assert(NULL != track); 341acd88797a1d3b8225bab888d29036e245f275be5Glenn Kasten track->mBufferQueue = &this->mBufferQueue; 342276cab2d983b892d1b634474b6249f6bec400c76Glenn Kasten track->mAudioPlayer = this; 343acd88797a1d3b8225bab888d29036e245f275be5Glenn Kasten track->mReader = NULL; 344acd88797a1d3b8225bab888d29036e245f275be5Glenn Kasten track->mAvail = 0; 345e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten track->mGains[0] = 1.0f; 346e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten track->mGains[1] = 1.0f; 347e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten track->mFrameCounter = 0; 348daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten return SL_RESULT_SUCCESS; 349daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten} 350daf661248ff6ea2e21799e5114c78b7c1d49630eGlenn Kasten 351343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 352343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten/** \brief Called when a gain-related field (mute, solo, volume, stereo position, etc.) updated */ 353343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 354e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kastenvoid audioPlayerGainUpdate(CAudioPlayer *audioPlayer) 355e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten{ 356e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten // FIXME need a lock on the track while updating gain 357369f3138f19f7102bf0f98b890ab84c8df633a93Glenn Kasten Track *track = audioPlayer->mTrack; 358e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten 359e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (NULL == track) 360e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten return; 361e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten 362e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten SLboolean mute = audioPlayer->mVolume.mMute; 363b91e32605ecf39e34ad39936b1ee193bb4e30225Glenn Kasten SLuint8 muteMask = audioPlayer->mMuteMask; 364b91e32605ecf39e34ad39936b1ee193bb4e30225Glenn Kasten SLuint8 soloMask = audioPlayer->mSoloMask; 365e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten SLmillibel level = audioPlayer->mVolume.mLevel; 366e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten SLboolean enableStereoPosition = audioPlayer->mVolume.mEnableStereoPosition; 367e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten SLpermille stereoPosition = audioPlayer->mVolume.mStereoPosition; 368e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten 369e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (soloMask) 370e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten muteMask |= ~soloMask; 371e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (mute || !(~muteMask & 3)) { 37218abcc4b70fab1f84d6fbebac3a8e34480a6c4d3Glenn Kasten track->mGains[0] = 0.0f; 37318abcc4b70fab1f84d6fbebac3a8e34480a6c4d3Glenn Kasten track->mGains[1] = 0.0f; 374e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten } else { 37518abcc4b70fab1f84d6fbebac3a8e34480a6c4d3Glenn Kasten float playerGain = powf(10.0f, level / 2000.0f); 376e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten unsigned channel; 377e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten for (channel = 0; channel < STEREO_CHANNELS; ++channel) { 378e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten float gain; 379e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (muteMask & (1 << channel)) 38018abcc4b70fab1f84d6fbebac3a8e34480a6c4d3Glenn Kasten gain = 0.0f; 381e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten else { 382e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten gain = playerGain; 383e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (enableStereoPosition) { 384e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten switch (channel) { 385e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten case 0: 386e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (stereoPosition > 0) 38718abcc4b70fab1f84d6fbebac3a8e34480a6c4d3Glenn Kasten gain *= (1000 - stereoPosition) / 1000.0f; 388e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten break; 389e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten case 1: 390e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten if (stereoPosition < 0) 39118abcc4b70fab1f84d6fbebac3a8e34480a6c4d3Glenn Kasten gain *= (1000 + stereoPosition) / 1000.0f; 392e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten break; 393e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten default: 394e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten assert(SL_BOOLEAN_FALSE); 395e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten break; 396e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten } 397e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten } 398e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten } 399e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten track->mGains[channel] = gain; 400e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten } 401e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten } 402e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten} 403e5bf0d2c9531a7064eb3ddcafaf93ac1b0974037Glenn Kasten 404343c522ebf4f9c321eef8c3b3b2945f1c1cb8846Glenn Kasten 405b7154f2324c8ae44b820c07c69aaa80a4bb9e418Glenn Kasten#endif // USE_OUTPUTMIXEXT 406