audioloop.cpp revision f1d5aa162c02a16b7195a43a9bcea4d592600ac4
1#include "SineSource.h" 2 3#include <binder/ProcessState.h> 4#include <media/mediarecorder.h> 5#include <media/stagefright/foundation/ADebug.h> 6#include <media/stagefright/AMRWriter.h> 7#include <media/stagefright/AudioPlayer.h> 8#include <media/stagefright/AudioSource.h> 9#include <media/stagefright/MediaDefs.h> 10#include <media/stagefright/MetaData.h> 11#include <media/stagefright/OMXClient.h> 12#include <media/stagefright/OMXCodec.h> 13 14#include <system/audio.h> 15 16using namespace android; 17 18int main() { 19 // We only have an AMR-WB encoder on sholes... 20 static bool outputWBAMR = false; 21 static const int32_t kSampleRate = outputWBAMR ? 16000 : 8000; 22 static const int32_t kNumChannels = 1; 23 24 android::ProcessState::self()->startThreadPool(); 25 26 OMXClient client; 27 CHECK_EQ(client.connect(), (status_t)OK); 28 29#if 0 30 sp<MediaSource> source = new SineSource(kSampleRate, kNumChannels); 31#else 32 sp<MediaSource> source = new AudioSource( 33 AUDIO_SOURCE_DEFAULT, 34 kSampleRate, 35 kNumChannels == 1 36 ? AUDIO_CHANNEL_IN_MONO 37 : AUDIO_CHANNEL_IN_STEREO); 38#endif 39 40 sp<MetaData> meta = new MetaData; 41 42 meta->setCString( 43 kKeyMIMEType, 44 outputWBAMR ? MEDIA_MIMETYPE_AUDIO_AMR_WB 45 : MEDIA_MIMETYPE_AUDIO_AMR_NB); 46 47 meta->setInt32(kKeyChannelCount, kNumChannels); 48 meta->setInt32(kKeySampleRate, kSampleRate); 49 50 int32_t maxInputSize; 51 if (source->getFormat()->findInt32(kKeyMaxInputSize, &maxInputSize)) { 52 meta->setInt32(kKeyMaxInputSize, maxInputSize); 53 } 54 55 sp<MediaSource> encoder = OMXCodec::Create( 56 client.interface(), 57 meta, true /* createEncoder */, 58 source); 59 60#if 1 61 sp<AMRWriter> writer = new AMRWriter("/sdcard/out.amr"); 62 writer->addSource(encoder); 63 writer->start(); 64 sleep(10); 65 writer->stop(); 66#else 67 sp<MediaSource> decoder = OMXCodec::Create( 68 client.interface(), 69 meta, false /* createEncoder */, 70 encoder); 71 72#if 0 73 AudioPlayer *player = new AudioPlayer(NULL); 74 player->setSource(decoder); 75 76 player->start(); 77 78 sleep(10); 79 80 player->stop(); 81 82 delete player; 83 player = NULL; 84#elif 0 85 CHECK_EQ(decoder->start(), (status_t)OK); 86 87 MediaBuffer *buffer; 88 while (decoder->read(&buffer) == OK) { 89 // do something with buffer 90 91 putchar('.'); 92 fflush(stdout); 93 94 buffer->release(); 95 buffer = NULL; 96 } 97 98 CHECK_EQ(decoder->stop(), (status_t)OK); 99#endif 100#endif 101 102 return 0; 103} 104