test-mixer.cpp revision e93b6b7347a7846c8fd746542364ec11b0cd5124
1e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung/* 2e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * Copyright (C) 2014 The Android Open Source Project 3e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * 4e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * Licensed under the Apache License, Version 2.0 (the "License"); 5e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * you may not use this file except in compliance with the License. 6e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * You may obtain a copy of the License at 7e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * 8e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * http://www.apache.org/licenses/LICENSE-2.0 9e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * 10e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * Unless required by applicable law or agreed to in writing, software 11e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * distributed under the License is distributed on an "AS IS" BASIS, 12e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * See the License for the specific language governing permissions and 14e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * limitations under the License. 15e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung */ 16e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 17e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung#include <stdio.h> 18e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung#include <inttypes.h> 19e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung#include <math.h> 20e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung#include <vector> 21e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung#include <audio_utils/primitives.h> 22e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung#include <audio_utils/sndfile.h> 23e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung#include <media/AudioBufferProvider.h> 24e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung#include "AudioMixer.h" 25e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung#include "test_utils.h" 26e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 27e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung/* Testing is typically through creation of an output WAV file from several 28e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * source inputs, to be later analyzed by an audio program such as Audacity. 29e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * 30e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * Sine or chirp functions are typically more useful as input to the mixer 31e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * as they show up as straight lines on a spectrogram if successfully mixed. 32e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * 33e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * A sample shell script is provided: mixer_to_wave_tests.sh 34e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung */ 35e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 36e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hungusing namespace android; 37e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 38e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hungstatic void usage(const char* name) { 39e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung fprintf(stderr, "Usage: %s [-f] [-m] [-c channels]" 40e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung " [-s sample-rate] [-o <output-file>] [-a <aux-buffer-file>] [-P csv]" 41e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung " (<input-file> | <command>)+\n", name); 42e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, " -f enable floating point input track\n"); 43e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, " -m enable floating point mixer output\n"); 44e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung fprintf(stderr, " -c number of mixer output channels\n"); 45e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, " -s mixer sample-rate\n"); 46e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, " -o <output-file> WAV file, pcm16 (or float if -m specified)\n"); 47e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, " -a <aux-buffer-file>\n"); 48e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, " -P # frames provided per call to resample() in CSV format\n"); 49e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, " <input-file> is a WAV file\n"); 50e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, " <command> can be 'sine:<channels>,<frequency>,<samplerate>'\n"); 51e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, " 'chirp:<channels>,<samplerate>'\n"); 52e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung} 53e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 54e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hungstatic int writeFile(const char *filename, const void *buffer, 55e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung uint32_t sampleRate, uint32_t channels, size_t frames, bool isBufferFloat) { 56e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (filename == NULL) { 57e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung return 0; // ok to pass in NULL filename 58e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 59e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // write output to file. 60e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung SF_INFO info; 61e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung info.frames = 0; 62e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung info.samplerate = sampleRate; 63e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung info.channels = channels; 64e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung info.format = SF_FORMAT_WAV | (isBufferFloat ? SF_FORMAT_FLOAT : SF_FORMAT_PCM_16); 65e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung printf("saving file:%s channels:%d samplerate:%d frames:%d\n", 66e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung filename, info.channels, info.samplerate, frames); 67e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung SNDFILE *sf = sf_open(filename, SFM_WRITE, &info); 68e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (sf == NULL) { 69e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung perror(filename); 70e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung return EXIT_FAILURE; 71e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 72e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (isBufferFloat) { 73e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung (void) sf_writef_float(sf, (float*)buffer, frames); 74e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } else { 75e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung (void) sf_writef_short(sf, (short*)buffer, frames); 76e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 77e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung sf_close(sf); 78e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung return EXIT_SUCCESS; 79e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung} 80e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 81e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hungint main(int argc, char* argv[]) { 82e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung const char* const progname = argv[0]; 83e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung bool useInputFloat = false; 84e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung bool useMixerFloat = false; 85e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung bool useRamp = true; 86e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung uint32_t outputSampleRate = 48000; 87e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung uint32_t outputChannels = 2; // stereo for now 88e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung std::vector<int> Pvalues; 89e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung const char* outputFilename = NULL; 90e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung const char* auxFilename = NULL; 91e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung std::vector<int32_t> Names; 92e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung std::vector<SignalProvider> Providers; 93e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 94e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung for (int ch; (ch = getopt(argc, argv, "fmc:s:o:a:P:")) != -1;) { 95e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung switch (ch) { 96e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung case 'f': 97e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung useInputFloat = true; 98e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung break; 99e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung case 'm': 100e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung useMixerFloat = true; 101e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung break; 102e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung case 'c': 103e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung outputChannels = atoi(optarg); 104e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung break; 105e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung case 's': 106e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung outputSampleRate = atoi(optarg); 107e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung break; 108e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung case 'o': 109e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung outputFilename = optarg; 110e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung break; 111e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung case 'a': 112e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung auxFilename = optarg; 113e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung break; 114e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung case 'P': 115e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (parseCSV(optarg, Pvalues) < 0) { 116e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, "incorrect syntax for -P option\n"); 117e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung return EXIT_FAILURE; 118e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 119e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung break; 120e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung case '?': 121e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung default: 122e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung usage(progname); 123e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung return EXIT_FAILURE; 124e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 125e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 126e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung argc -= optind; 127e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung argv += optind; 128e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 129e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (argc == 0) { 130e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung usage(progname); 131e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung return EXIT_FAILURE; 132e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 133e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if ((unsigned)argc > AudioMixer::MAX_NUM_TRACKS) { 134e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, "too many tracks: %d > %u", argc, AudioMixer::MAX_NUM_TRACKS); 135e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung return EXIT_FAILURE; 136e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 137e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 138e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung size_t outputFrames = 0; 139e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 140e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // create providers for each track 141e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers.resize(argc); 142e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung for (int i = 0; i < argc; ++i) { 143e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung static const char chirp[] = "chirp:"; 144e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung static const char sine[] = "sine:"; 145e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung static const double kSeconds = 1; 146e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 147e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (!strncmp(argv[i], chirp, strlen(chirp))) { 148e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung std::vector<int> v; 149e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 150e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung parseCSV(argv[i] + strlen(chirp), v); 151e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (v.size() == 2) { 152e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung printf("creating chirp(%d %d)\n", v[0], v[1]); 153e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (useInputFloat) { 154e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers[i].setChirp<float>(v[0], 0, v[1]/2, v[1], kSeconds); 155e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } else { 156e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers[i].setChirp<int16_t>(v[0], 0, v[1]/2, v[1], kSeconds); 157e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 158e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers[i].setIncr(Pvalues); 159e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } else { 160e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, "malformed input '%s'\n", argv[i]); 161e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 162e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } else if (!strncmp(argv[i], sine, strlen(sine))) { 163e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung std::vector<int> v; 164e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 165e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung parseCSV(argv[i] + strlen(sine), v); 166e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (v.size() == 3) { 167e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung printf("creating sine(%d %d %d)\n", v[0], v[1], v[2]); 168e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (useInputFloat) { 169e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers[i].setSine<float>(v[0], v[1], v[2], kSeconds); 170e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } else { 171e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers[i].setSine<int16_t>(v[0], v[1], v[2], kSeconds); 172e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 173e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers[i].setIncr(Pvalues); 174e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } else { 175e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung fprintf(stderr, "malformed input '%s'\n", argv[i]); 176e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 177e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } else { 178e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung printf("creating filename(%s)\n", argv[i]); 179e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (useInputFloat) { 180e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers[i].setFile<float>(argv[i]); 181e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } else { 182e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers[i].setFile<short>(argv[i]); 183e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 184e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Providers[i].setIncr(Pvalues); 185e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 186e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // calculate the number of output frames 187e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung size_t nframes = (int64_t) Providers[i].getNumFrames() * outputSampleRate 188e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung / Providers[i].getSampleRate(); 189e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (i == 0 || outputFrames > nframes) { // choose minimum for outputFrames 190e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung outputFrames = nframes; 191e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 192e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 193e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 194e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // create the output buffer. 195e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung const size_t outputFrameSize = outputChannels 196e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung * (useMixerFloat ? sizeof(float) : sizeof(int16_t)); 197e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung const size_t outputSize = outputFrames * outputFrameSize; 198e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung const audio_channel_mask_t outputChannelMask = 199e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung audio_channel_out_mask_from_count(outputChannels); 200e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung void *outputAddr = NULL; 201e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung (void) posix_memalign(&outputAddr, 32, outputSize); 202e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung memset(outputAddr, 0, outputSize); 203e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 204e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // create the aux buffer, if needed. 205e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung const size_t auxFrameSize = sizeof(int32_t); // Q4.27 always 206e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung const size_t auxSize = outputFrames * auxFrameSize; 207e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung void *auxAddr = NULL; 208e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (auxFilename) { 209e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung (void) posix_memalign(&auxAddr, 32, auxSize); 210e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung memset(auxAddr, 0, auxSize); 211e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 212e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 213e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // create the mixer. 214e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung const size_t mixerFrameCount = 320; // typical numbers may range from 240 or 960 215e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung AudioMixer *mixer = new AudioMixer(mixerFrameCount, outputSampleRate); 216e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung audio_format_t inputFormat = useInputFloat 217e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT; 218e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung audio_format_t mixerFormat = useMixerFloat 219e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT; 220e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung float f = AudioMixer::UNITY_GAIN_FLOAT / Providers.size(); // normalize volume by # tracks 221e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung static float f0; // zero 222e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 223e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // set up the tracks. 224e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung for (size_t i = 0; i < Providers.size(); ++i) { 225e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung //printf("track %d out of %d\n", i, Providers.size()); 226e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung uint32_t channelMask = audio_channel_out_mask_from_count(Providers[i].getNumChannels()); 227e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung int32_t name = mixer->getTrackName(channelMask, 228e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung inputFormat, AUDIO_SESSION_OUTPUT_MIX); 229e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung ALOG_ASSERT(name >= 0); 230e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung Names.push_back(name); 231e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setBufferProvider(name, &Providers[i]); 232e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER, 233e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung (void *)outputAddr); 234e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter( 235e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung name, 236e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung AudioMixer::TRACK, 237e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung AudioMixer::MIXER_FORMAT, 238e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung (void *)(uintptr_t)mixerFormat); 239e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung mixer->setParameter( 240e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung name, 241e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung AudioMixer::TRACK, 242e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung AudioMixer::FORMAT, 243e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung (void *)(uintptr_t)inputFormat); 244e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter( 245e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung name, 246e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung AudioMixer::TRACK, 247e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung AudioMixer::MIXER_CHANNEL_MASK, 248e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung (void *)(uintptr_t)outputChannelMask); 249e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung mixer->setParameter( 250e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung name, 251e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung AudioMixer::TRACK, 252e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung AudioMixer::CHANNEL_MASK, 253e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung (void *)(uintptr_t)channelMask); 254e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung mixer->setParameter( 255e93b6b7347a7846c8fd746542364ec11b0cd5124Andy Hung name, 256e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung AudioMixer::RESAMPLE, 257e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung AudioMixer::SAMPLE_RATE, 258e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung (void *)(uintptr_t)Providers[i].getSampleRate()); 259e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (useRamp) { 260e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f0); 261e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f0); 262e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME0, &f); 263e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME1, &f); 264e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } else { 265e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f); 266e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f); 267e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 268e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (auxFilename) { 269e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::AUX_BUFFER, 270e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung (void *) auxAddr); 271e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::AUXLEVEL, &f0); 272e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::AUXLEVEL, &f); 273e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 274e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->enable(name); 275e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 276e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 277e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // pump the mixer to process data. 278e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung size_t i; 279e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung for (i = 0; i < outputFrames - mixerFrameCount; i += mixerFrameCount) { 280e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung for (size_t j = 0; j < Names.size(); ++j) { 281e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(Names[j], AudioMixer::TRACK, AudioMixer::MAIN_BUFFER, 282e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung (char *) outputAddr + i * outputFrameSize); 283e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (auxFilename) { 284e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->setParameter(Names[j], AudioMixer::TRACK, AudioMixer::AUX_BUFFER, 285e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung (char *) auxAddr + i * auxFrameSize); 286e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 287e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 288e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung mixer->process(AudioBufferProvider::kInvalidPTS); 289e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 290e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung outputFrames = i; // reset output frames to the data actually produced. 291e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 292e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // write to files 293e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung writeFile(outputFilename, outputAddr, 294e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung outputSampleRate, outputChannels, outputFrames, useMixerFloat); 295e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung if (auxFilename) { 296e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // Aux buffer is always in q4_27 format for now. 297e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung // memcpy_to_i16_from_q4_27(), but with stereo frame count (not sample count) 298e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung ditherAndClamp((int32_t*)auxAddr, (int32_t*)auxAddr, outputFrames >> 1); 299e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung writeFile(auxFilename, auxAddr, outputSampleRate, 1, outputFrames, false); 300e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung } 301e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung 302e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung delete mixer; 303e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung free(outputAddr); 304e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung free(auxAddr); 305e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung return EXIT_SUCCESS; 306e4fc42359cdd9786e521054a3a0491d6bc3a9e1cAndy Hung} 307