Cody Schuffelen | 134ff03 | 2019-11-22 00:25:32 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2018 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 | #include "common/vsoc/lib/audio_data_region_view.h" |
| 18 | #include "common/vsoc/lib/circqueue_impl.h" |
| 19 | #include "common/vsoc/lib/vsoc_audio_message.h" |
| 20 | #include "host/libs/config/cuttlefish_config.h" |
| 21 | |
| 22 | #include "WaveWriter.h" |
| 23 | |
| 24 | #include <android-base/logging.h> |
| 25 | #include <gflags/gflags.h> |
| 26 | #include <iostream> |
| 27 | #include <signal.h> |
| 28 | |
| 29 | using AudioDataRegionView = vsoc::audio_data::AudioDataRegionView; |
| 30 | using WaveWriter = android::WaveWriter; |
| 31 | |
| 32 | DEFINE_string(output_file, "", "Location of the output audio file."); |
| 33 | DEFINE_bool(verbose, false, "Enable verbose logging."); |
| 34 | |
| 35 | volatile bool gDone = false; |
| 36 | static void SigIntHandler(int /* sig */) { |
| 37 | gDone = true; |
| 38 | } |
| 39 | |
| 40 | int main(int argc, char **argv) { |
| 41 | ::android::base::InitLogging(argv, android::base::StderrLogger); |
| 42 | google::ParseCommandLineFlags(&argc, &argv, true); |
| 43 | |
| 44 | LOG_IF(FATAL, FLAGS_output_file.empty()) |
| 45 | << "--output_file must be specified."; |
| 46 | |
| 47 | AudioDataRegionView *audio_data_rv = |
| 48 | AudioDataRegionView::GetInstance(vsoc::GetDomain().c_str()); |
| 49 | |
| 50 | auto worker = audio_data_rv->StartWorker(); |
| 51 | |
| 52 | std::unique_ptr<WaveWriter> writer; |
| 53 | int64_t frameCount = 0LL; |
| 54 | |
| 55 | // The configuration the writer is setup for. |
| 56 | gce_audio_message writer_hdr; |
| 57 | |
| 58 | uint8_t buffer[4096]; |
| 59 | |
| 60 | gDone = false; |
| 61 | |
| 62 | struct sigaction act; |
| 63 | sigemptyset(&act.sa_mask); |
| 64 | act.sa_flags = 0; |
| 65 | act.sa_handler = SigIntHandler; |
| 66 | |
| 67 | struct sigaction oact; |
| 68 | sigaction(SIGINT, &act, &oact); |
| 69 | |
| 70 | while (!gDone) { |
| 71 | intptr_t res = audio_data_rv->data()->audio_queue.Read( |
| 72 | audio_data_rv, |
| 73 | reinterpret_cast<char *>(buffer), |
| 74 | sizeof(buffer)); |
| 75 | |
| 76 | if (res < 0) { |
| 77 | std::cerr << "CircularPacketQueue::Read returned " << res << std::endl; |
| 78 | continue; |
| 79 | } |
| 80 | |
| 81 | CHECK_GE(static_cast<size_t>(res), sizeof(gce_audio_message)); |
| 82 | |
| 83 | gce_audio_message hdr; |
| 84 | std::memcpy(&hdr, buffer, sizeof(gce_audio_message)); |
| 85 | |
| 86 | if (hdr.message_type != gce_audio_message::DATA_SAMPLES) { |
| 87 | continue; |
| 88 | } |
| 89 | |
| 90 | const size_t payloadSize = res - sizeof(gce_audio_message); |
| 91 | |
| 92 | if (FLAGS_verbose) { |
| 93 | std::cerr |
| 94 | << "stream " |
| 95 | << hdr.stream_number |
| 96 | << ", frame " |
| 97 | << hdr.frame_num |
| 98 | << ", rate " |
| 99 | << hdr.frame_rate |
| 100 | << ", channel_mask " |
| 101 | << hdr.channel_mask |
| 102 | << ", format " |
| 103 | << hdr.format |
| 104 | << ", payload_size " |
| 105 | << payloadSize |
| 106 | << std::endl; |
| 107 | } |
| 108 | |
| 109 | if (!writer) { |
| 110 | const size_t numChannels = hdr.frame_size / sizeof(int16_t); |
| 111 | |
| 112 | writer.reset( |
| 113 | new WaveWriter(FLAGS_output_file.c_str(), numChannels, hdr.frame_rate)); |
| 114 | |
| 115 | frameCount = hdr.frame_num; |
| 116 | writer_hdr = hdr; |
| 117 | } else if (writer_hdr.frame_size != hdr.frame_size |
| 118 | || writer_hdr.frame_rate != hdr.frame_rate |
| 119 | || writer_hdr.stream_number != hdr.stream_number) { |
| 120 | std::cerr << "Audio configuration changed. Aborting." << std::endl; |
| 121 | break; |
| 122 | } |
| 123 | |
| 124 | int64_t framesMissing = hdr.frame_num - frameCount; |
| 125 | if (framesMissing > 0) { |
| 126 | // TODO(andih): Insert silence here, if necessary. |
| 127 | } |
| 128 | |
| 129 | frameCount = hdr.frame_num; |
| 130 | |
| 131 | writer->Append(&buffer[sizeof(gce_audio_message)], payloadSize); |
| 132 | } |
| 133 | |
| 134 | std::cout << "DONE" << std::endl; |
| 135 | |
| 136 | return 0; |
| 137 | } |
| 138 | |