AudioMixer.h revision 7d5b26230a179cd7bcc01f6578cd80d8c15a92a5
199e53b86eebb605b70dd7591b89bf61a9414ed0eGlenn Kasten/* 265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** 365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** Copyright 2007, The Android Open Source Project 465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** 565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** Licensed under the Apache License, Version 2.0 (the "License"); 665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** you may not use this file except in compliance with the License. 765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** You may obtain a copy of the License at 865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** 965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** http://www.apache.org/licenses/LICENSE-2.0 1065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** 1165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** Unless required by applicable law or agreed to in writing, software 1265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** distributed under the License is distributed on an "AS IS" BASIS, 1365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** See the License for the specific language governing permissions and 1565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian** limitations under the License. 1665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian*/ 1765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#ifndef ANDROID_AUDIO_MIXER_H 1965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#define ANDROID_AUDIO_MIXER_H 2065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 2165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <stdint.h> 2265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include <sys/types.h> 2365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 247d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi#include <utils/threads.h> 257d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi 2665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include "AudioBufferProvider.h" 2765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#include "AudioResampler.h" 2865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 297d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi#include <audio_effects/effect_downmix.h> 307d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi#include <system/audio.h> 317d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi 3265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopiannamespace android { 3365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 3465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// ---------------------------------------------------------------------------- 3565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 3665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianclass AudioMixer 3765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian{ 3865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianpublic: 395c94b6c7689a335e26a86e8a0d04b56dc627738eGlenn Kasten AudioMixer(size_t frameCount, uint32_t sampleRate, 405c94b6c7689a335e26a86e8a0d04b56dc627738eGlenn Kasten uint32_t maxNumTracks = MAX_NUM_TRACKS); 4165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 42c19e22450e6e3d07594c935c7a9522e85e909e82Glenn Kasten /*virtual*/ ~AudioMixer(); // non-virtual saves a v-table, restore if sub-classed 4365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 4465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static const uint32_t MAX_NUM_TRACKS = 32; 457d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi // maximum number of channels supported by the mixer 4665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static const uint32_t MAX_NUM_CHANNELS = 2; 477d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi // maximum number of channels supported for the content 487d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi static const uint32_t MAX_NUM_CHANNELS_TO_DOWNMIX = 8; 4965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 5065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static const uint16_t UNITY_GAIN = 0x1000; 5165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 5265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian enum { // names 5365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 549c56d4ae6212c21ce5fd71ed534eb195983a07c1Glenn Kasten // track names (MAX_NUM_TRACKS units) 5565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian TRACK0 = 0x1000, 5665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 571c48c3c61970527b97892ab6a2daae8eaac26964Glenn Kasten // 0x2000 is unused 5865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 5965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // setParameter targets 6065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian TRACK = 0x3000, 6165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian RESAMPLE = 0x3001, 6265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian RAMP_VOLUME = 0x3002, // ramp to new volume 6365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian VOLUME = 0x3003, // don't ramp 6465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 6565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // set Parameter names 6665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // for target TRACK 670d255b2d9061ba31f13ada3fc0f7e51916407176Jean-Michel Trivi CHANNEL_MASK = 0x4000, 6865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian FORMAT = 0x4001, 6965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian MAIN_BUFFER = 0x4002, 7065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian AUX_BUFFER = 0x4003, 717d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi DOWNMIX_TYPE = 0X4004, 72362c4e697d8e9c034e964ac7b40227e054491547Glenn Kasten // for target RESAMPLE 7365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian SAMPLE_RATE = 0x4100, 74243f5f91755c01614a8cafe90b0806396e22d553Eric Laurent RESET = 0x4101, 75362c4e697d8e9c034e964ac7b40227e054491547Glenn Kasten // for target RAMP_VOLUME and VOLUME (8 channels max) 7665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian VOLUME0 = 0x4200, 7765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian VOLUME1 = 0x4201, 7865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian AUXLEVEL = 0x4210, 7965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian }; 8065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 8165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 829c56d4ae6212c21ce5fd71ed534eb195983a07c1Glenn Kasten // For all APIs with "name": TRACK0 <= name < TRACK0 + MAX_NUM_TRACKS 8317a736c3e1d062d7fc916329eb32aef8935614afGlenn Kasten 8417a736c3e1d062d7fc916329eb32aef8935614afGlenn Kasten // Allocate a track name. Returns new track name if successful, -1 on failure. 8565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int getTrackName(); 8617a736c3e1d062d7fc916329eb32aef8935614afGlenn Kasten 8717a736c3e1d062d7fc916329eb32aef8935614afGlenn Kasten // Free an allocated track by name 8865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian void deleteTrackName(int name); 8965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 9017a736c3e1d062d7fc916329eb32aef8935614afGlenn Kasten // Enable or disable an allocated track by name 919c56d4ae6212c21ce5fd71ed534eb195983a07c1Glenn Kasten void enable(int name); 929c56d4ae6212c21ce5fd71ed534eb195983a07c1Glenn Kasten void disable(int name); 9365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 949c56d4ae6212c21ce5fd71ed534eb195983a07c1Glenn Kasten void setParameter(int name, int target, int param, void *value); 9565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 969c56d4ae6212c21ce5fd71ed534eb195983a07c1Glenn Kasten void setBufferProvider(int name, AudioBufferProvider* bufferProvider); 974ff14bae91075eb274eb1c2975982358946e7e63John Grossman void process(int64_t pts); 9865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 9965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian uint32_t trackNames() const { return mTrackNames; } 10065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 101c59c004a3a6042c0990d71179f88eee2ce781e3cGlenn Kasten size_t getUnreleasedFrames(int name) const; 102071ccd5a9702500f3f7d62ef881300914926184dEric Laurent 10365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopianprivate: 10465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 10565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian enum { 1067d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi NEEDS_CHANNEL_COUNT__MASK = 0x00000007, 10765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_FORMAT__MASK = 0x000000F0, 10865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_MUTE__MASK = 0x00000100, 10965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_RESAMPLE__MASK = 0x00001000, 11065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_AUX__MASK = 0x00010000, 11165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian }; 11265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 11365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian enum { 11465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_CHANNEL_1 = 0x00000000, 11565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_CHANNEL_2 = 0x00000001, 11665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 11765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_FORMAT_16 = 0x00000010, 11865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 11965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_MUTE_DISABLED = 0x00000000, 12065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_MUTE_ENABLED = 0x00000100, 12165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 12265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_RESAMPLE_DISABLED = 0x00000000, 12365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_RESAMPLE_ENABLED = 0x00001000, 12465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 12565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_AUX_DISABLED = 0x00000000, 12665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian NEEDS_AUX_ENABLED = 0x00010000, 12765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian }; 12865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 12965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian struct state_t; 13065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian struct track_t; 1317d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi class DownmixerBufferProvider; 13265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 13365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian typedef void (*hook_t)(track_t* t, int32_t* output, size_t numOutFrames, int32_t* temp, int32_t* aux); 13465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static const int BLOCKSIZE = 16; // 4 cache lines 13565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 13665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian struct track_t { 13765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian uint32_t needs; 13865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 13965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian union { 140bf71f1e7948406492376c6cbd5e6a30c8cb670e4Glenn Kasten int16_t volume[MAX_NUM_CHANNELS]; // [0]3.12 fixed point 14165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int32_t volumeRL; 14265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian }; 14365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 144bf71f1e7948406492376c6cbd5e6a30c8cb670e4Glenn Kasten int32_t prevVolume[MAX_NUM_CHANNELS]; 14565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1463b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten // 16-byte boundary 1473b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten 148bf71f1e7948406492376c6cbd5e6a30c8cb670e4Glenn Kasten int32_t volumeInc[MAX_NUM_CHANNELS]; 14965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int32_t auxInc; 15065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int32_t prevAuxLevel; 15165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1523b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten // 16-byte boundary 1533b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten 1543b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten int16_t auxLevel; // 0 <= auxLevel <= MAX_GAIN_INT, but signed for mul performance 15565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian uint16_t frameCount; 15665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1573b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten uint8_t channelCount; // 1 or 2, redundant with (needs & NEEDS_CHANNEL_COUNT__MASK) 1583b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten uint8_t format; // always 16 1593b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten uint16_t enabled; // actually bool 1607d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi audio_channel_mask_t channelMask; 16165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1627d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi // actual buffer provider used by the track hooks, see DownmixerBufferProvider below 1637d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi // for how the Track buffer provider is wrapped by another one when dowmixing is required 16465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian AudioBufferProvider* bufferProvider; 1653b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten 1663b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten // 16-byte boundary 1673b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten 1683b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten mutable AudioBufferProvider::Buffer buffer; // 8 bytes 16965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 17065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian hook_t hook; 17154c3b66444ebfb9f2265ee70ac3b76ccefa0506aGlenn Kasten const void* in; // current location in buffer 17265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1733b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten // 16-byte boundary 1743b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten 17565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian AudioResampler* resampler; 17665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian uint32_t sampleRate; 17765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int32_t* mainBuffer; 17865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int32_t* auxBuffer; 17965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 1803b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten // 16-byte boundary 1813b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten 1824ff14bae91075eb274eb1c2975982358946e7e63John Grossman uint64_t localTimeFreq; 1834ff14bae91075eb274eb1c2975982358946e7e63John Grossman 1847d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi DownmixerBufferProvider* downmixerBufferProvider; // 4 bytes 1857d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi 1867d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi int32_t padding; 1873b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten 1883b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten // 16-byte boundary 1893b81acab52b7140c1b8b20be2d67be3e221637e7Glenn Kasten 19065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian bool setResampler(uint32_t sampleRate, uint32_t devSampleRate); 191c59c004a3a6042c0990d71179f88eee2ce781e3cGlenn Kasten bool doesResample() const { return resampler != NULL; } 192c59c004a3a6042c0990d71179f88eee2ce781e3cGlenn Kasten void resetResampler() { if (resampler != NULL) resampler->reset(); } 19365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian void adjustVolumeRamp(bool aux); 194c59c004a3a6042c0990d71179f88eee2ce781e3cGlenn Kasten size_t getUnreleasedFrames() const { return resampler != NULL ? 195c59c004a3a6042c0990d71179f88eee2ce781e3cGlenn Kasten resampler->getUnreleasedFrames() : 0; }; 19665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian }; 19765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 19865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian // pad to 32-bytes to fill cache line 19965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian struct state_t { 20065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian uint32_t enabledTracks; 20165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian uint32_t needsChanged; 20265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian size_t frameCount; 203a111792f1314479c649d1d44c30c2caf70c00c2aGlenn Kasten void (*hook)(state_t* state, int64_t pts); // one of process__*, never NULL 20465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int32_t *outputTemp; 20565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int32_t *resampleTemp; 20665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian int32_t reserved[2]; 2075c94b6c7689a335e26a86e8a0d04b56dc627738eGlenn Kasten // FIXME allocate dynamically to save some memory when maxNumTracks < MAX_NUM_TRACKS 208bf71f1e7948406492376c6cbd5e6a30c8cb670e4Glenn Kasten track_t tracks[MAX_NUM_TRACKS]; __attribute__((aligned(32))); 20965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian }; 21065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 2117d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi // AudioBufferProvider that wraps a track AudioBufferProvider by a call to a downmix effect 2127d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi class DownmixerBufferProvider : public AudioBufferProvider { 2137d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi public: 2147d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi virtual status_t getNextBuffer(Buffer* buffer, int64_t pts); 2157d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi virtual void releaseBuffer(Buffer* buffer); 2167d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi DownmixerBufferProvider(); 2177d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi virtual ~DownmixerBufferProvider(); 2187d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi 2197d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi AudioBufferProvider* mTrackBufferProvider; 2207d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi effect_handle_t mDownmixHandle; 2217d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi effect_config_t mDownmixConfig; 2227d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi }; 2237d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi 2249c56d4ae6212c21ce5fd71ed534eb195983a07c1Glenn Kasten // bitmask of allocated track names, where bit 0 corresponds to TRACK0 etc. 22565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian uint32_t mTrackNames; 2265c94b6c7689a335e26a86e8a0d04b56dc627738eGlenn Kasten 2275c94b6c7689a335e26a86e8a0d04b56dc627738eGlenn Kasten // bitmask of configured track names; ~0 if maxNumTracks == MAX_NUM_TRACKS, 2285c94b6c7689a335e26a86e8a0d04b56dc627738eGlenn Kasten // but will have fewer bits set if maxNumTracks < MAX_NUM_TRACKS 2295c94b6c7689a335e26a86e8a0d04b56dc627738eGlenn Kasten const uint32_t mConfiguredNames; 2305c94b6c7689a335e26a86e8a0d04b56dc627738eGlenn Kasten 23165ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian const uint32_t mSampleRate; 23265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 23365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian state_t mState __attribute__((aligned(32))); 23465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 2357d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi // effect descriptor for the downmixer used by the mixer 2367d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi static effect_descriptor_t dwnmFxDesc; 2377d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi // indicates whether a downmix effect has been found and is usable by this mixer 2387d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi static bool isMultichannelCapable; 2397d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi 24065ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian void invalidateState(uint32_t mask); 2417d5b26230a179cd7bcc01f6578cd80d8c15a92a5Jean-Michel Trivi static status_t prepareTrackForDownmix(track_t* pTrack, int trackNum); 24265ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 24365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static void track__genericResample(track_t* t, int32_t* out, size_t numFrames, int32_t* temp, int32_t* aux); 24465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static void track__nop(track_t* t, int32_t* out, size_t numFrames, int32_t* temp, int32_t* aux); 24565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static void track__16BitsStereo(track_t* t, int32_t* out, size_t numFrames, int32_t* temp, int32_t* aux); 24665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static void track__16BitsMono(track_t* t, int32_t* out, size_t numFrames, int32_t* temp, int32_t* aux); 24765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static void volumeRampStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp, int32_t* aux); 24865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian static void volumeStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp, int32_t* aux); 24965ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 2504ff14bae91075eb274eb1c2975982358946e7e63John Grossman static void process__validate(state_t* state, int64_t pts); 2514ff14bae91075eb274eb1c2975982358946e7e63John Grossman static void process__nop(state_t* state, int64_t pts); 2524ff14bae91075eb274eb1c2975982358946e7e63John Grossman static void process__genericNoResampling(state_t* state, int64_t pts); 2534ff14bae91075eb274eb1c2975982358946e7e63John Grossman static void process__genericResampling(state_t* state, int64_t pts); 2544ff14bae91075eb274eb1c2975982358946e7e63John Grossman static void process__OneTrack16BitsStereoNoResampling(state_t* state, 2554ff14bae91075eb274eb1c2975982358946e7e63John Grossman int64_t pts); 25681a028fef62bcadf13fc8550067a3d29c918b3caGlenn Kasten#if 0 2574ff14bae91075eb274eb1c2975982358946e7e63John Grossman static void process__TwoTracks16BitsStereoNoResampling(state_t* state, 2584ff14bae91075eb274eb1c2975982358946e7e63John Grossman int64_t pts); 25981a028fef62bcadf13fc8550067a3d29c918b3caGlenn Kasten#endif 2604ff14bae91075eb274eb1c2975982358946e7e63John Grossman 2614ff14bae91075eb274eb1c2975982358946e7e63John Grossman static int64_t calculateOutputPTS(const track_t& t, int64_t basePTS, 2624ff14bae91075eb274eb1c2975982358946e7e63John Grossman int outputFrameIndex); 26365ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian}; 26465ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 26565ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian// ---------------------------------------------------------------------------- 26665ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian}; // namespace android 26765ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian 26865ab47156e1c7dfcd8cc4266253a5ff30219e7f0Mathias Agopian#endif // ANDROID_AUDIO_MIXER_H 269