/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/time.h>
#include <SLES/OpenSLES.h>
#ifdef ANDROID
#include <SLES/OpenSLES_Android.h>
#endif
#define MAX_NUMBER_INTERFACES 2
//-----------------------------------------------------------------
/* Exits the application if an error is encountered */
#define ExitOnError(x) ExitOnErrorFunc(x,__LINE__)
void ExitOnErrorFunc( SLresult result , int line)
{
if (SL_RESULT_SUCCESS != result) {
fprintf(stdout, "%u error code encountered at line %d, exiting\n", result, line);
exit(EXIT_FAILURE);
}
}
//-----------------------------------------------------------------
/* Play an audio URIs on the given stream type */
void TestStreamTypeConfiguration( SLObjectItf sl, const char* path, const SLint32 type)
{
SLresult result;
SLEngineItf EngineItf;
/* Objects this application uses: one player and an ouput mix */
SLObjectItf player, outputMix;
/* Source of audio data to play */
SLDataSource audioSource;
SLDataLocator_URI uri;
SLDataFormat_MIME mime;
/* Data sinks for the audio player */
SLDataSink audioSink;
SLDataLocator_OutputMix locator_outputmix;
/* Play, Volume and AndroidStreamType interfaces for the audio player */
SLPlayItf playItf;
SLPrefetchStatusItf prefetchItf;
#ifdef ANDROID
SLAndroidConfigurationItf configItf;
#endif
SLboolean required[MAX_NUMBER_INTERFACES];
SLInterfaceID iidArray[MAX_NUMBER_INTERFACES];
/* Get the SL Engine Interface which is implicit */
result = (*sl)->GetInterface(sl, SL_IID_ENGINE, (void*)&EngineItf);
ExitOnError(result);
/* Initialize arrays required[] and iidArray[] */
for (int i=0 ; i < MAX_NUMBER_INTERFACES ; i++) {
required[i] = SL_BOOLEAN_FALSE;
iidArray[i] = SL_IID_NULL;
}
/* ------------------------------------------------------ */
/* Configuration of the output mix */
/* Create Output Mix object to be used by the player */
result = (*EngineItf)->CreateOutputMix(EngineItf, &outputMix, 0, iidArray, required);
ExitOnError(result);
/* Realize the Output Mix object in synchronous mode */
result = (*outputMix)->Realize(outputMix, SL_BOOLEAN_FALSE);
ExitOnError(result);
/* Setup the data sink structure */
locator_outputmix.locatorType = SL_DATALOCATOR_OUTPUTMIX;
locator_outputmix.outputMix = outputMix;
audioSink.pLocator = (void*)&locator_outputmix;
audioSink.pFormat = NULL;
/* ------------------------------------------------------ */
/* Configuration of the player */
/* Set arrays required[] and iidArray[] for SLAndroidConfigurationItf interfaces */
/* (SLPlayItf is implicit) */
required[0] = SL_BOOLEAN_TRUE;
iidArray[0] = SL_IID_PREFETCHSTATUS;
#ifdef ANDROID
required[1] = SL_BOOLEAN_TRUE;
iidArray[1] = SL_IID_ANDROIDCONFIGURATION;
#endif
/* Setup the data source structure for the URI */
uri.locatorType = SL_DATALOCATOR_URI;
uri.URI = (SLchar*) path;
mime.formatType = SL_DATAFORMAT_MIME;
/* this is how ignored mime information is specified, according to OpenSL ES spec
* in 9.1.6 SLDataFormat_MIME and 8.23 SLMetadataTraversalItf GetChildInfo */
mime.mimeType = (SLchar*)NULL;
mime.containerType = SL_CONTAINERTYPE_UNSPECIFIED;
audioSource.pFormat = (void*)&mime;
audioSource.pLocator = (void*)&uri;
/* Create the audio player */
result = (*EngineItf)->CreateAudioPlayer(EngineItf, &player, &audioSource, &audioSink,
MAX_NUMBER_INTERFACES, iidArray, required);
ExitOnError(result);
/* Retrieve the configuration interface before the player is realized so its resources
* can be configured.
*/
#ifdef ANDROID
result = (*player)->GetInterface(player, SL_IID_ANDROIDCONFIGURATION, (void*)&configItf);
ExitOnError(result);
/* Set the Android audio stream type on the player */
result = (*configItf)->SetConfiguration(configItf,
SL_ANDROID_KEY_STREAM_TYPE, &type, sizeof(SLint32));
if (SL_RESULT_PARAMETER_INVALID == result) {
fprintf(stderr, "invalid stream type %d\n", type);
} else {
ExitOnError(result);
}
#endif
/* Realize the player in synchronous mode. */
result = (*player)->Realize(player, SL_BOOLEAN_FALSE); ExitOnError(result);
fprintf(stdout, "URI example: after Realize\n");
/* Get the SLPlayItf, SLPrefetchStatusItf and SLAndroidConfigurationItf interfaces for player */
result = (*player)->GetInterface(player, SL_IID_PLAY, (void*)&playItf);
ExitOnError(result);
result = (*player)->GetInterface(player, SL_IID_PREFETCHSTATUS, (void*)&prefetchItf);
ExitOnError(result);
fprintf(stdout, "Player configured\n");
/* ------------------------------------------------------ */
/* Playback and test */
/* Start the data prefetching by setting the player to the paused state */
result = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PAUSED );
ExitOnError(result);
/* Wait until there's data to play */
SLuint32 prefetchStatus = SL_PREFETCHSTATUS_UNDERFLOW;
while (prefetchStatus != SL_PREFETCHSTATUS_SUFFICIENTDATA) {
usleep(100 * 1000);
(*prefetchItf)->GetPrefetchStatus(prefetchItf, &prefetchStatus);
ExitOnError(result);
}
/* Get duration */
SLmillisecond durationInMsec = SL_TIME_UNKNOWN;
result = (*playItf)->GetDuration(playItf, &durationInMsec);
ExitOnError(result);
if (durationInMsec == SL_TIME_UNKNOWN) {
durationInMsec = 5000;
}
/* Start playback */
result = (*playItf)->SetPlayState( playItf, SL_PLAYSTATE_PLAYING );
ExitOnError(result);
usleep((durationInMsec/2) * 1000);
#ifdef ANDROID
/* Get the stream type during playback */
SLint32 currentType = -1;
SLuint32 valueSize = sizeof(SLint32) * 2; // trying too big on purpose
result = (*configItf)->GetConfiguration(configItf,
SL_ANDROID_KEY_STREAM_TYPE, &valueSize, NULL);
ExitOnError(result);
if (valueSize != sizeof(SLint32)) {
fprintf(stderr, "ERROR: size for stream type is %u, should be %u\n",
valueSize, sizeof(SLint32));
}
result = (*configItf)->GetConfiguration(configItf,
SL_ANDROID_KEY_STREAM_TYPE, &valueSize, ¤tType);
ExitOnError(result);
if (currentType != type) {
fprintf(stderr, "ERROR: stream type is %u, should be %u\n", currentType, type);
}
#endif
usleep((durationInMsec/2) * 1000);
/* Make sure player is stopped */
fprintf(stdout, "Stopping playback\n");
result = (*playItf)->SetPlayState(playItf, SL_PLAYSTATE_STOPPED);
ExitOnError(result);
#ifdef ANDROID
/* Try again to get the stream type, just in case it changed behind our back */
result = (*configItf)->GetConfiguration(configItf,
SL_ANDROID_KEY_STREAM_TYPE, &valueSize, ¤tType);
ExitOnError(result);
if (currentType != type) {
fprintf(stderr, "ERROR: stream type is %u, should be %u\n", currentType, type);
}
#endif
/* Destroy the player */
(*player)->Destroy(player);
/* Destroy Output Mix object */
(*outputMix)->Destroy(outputMix);
}
//-----------------------------------------------------------------
int main(int argc, char* const argv[])
{
SLresult result;
SLObjectItf sl;
fprintf(stdout, "OpenSL ES test %s: exercises SLPlayItf, SLAndroidConfigurationItf\n",
argv[0]);
fprintf(stdout, "and AudioPlayer with SLDataLocator_URI source / OutputMix sink\n");
fprintf(stdout, "Plays a sound on the specified android stream type\n");
if (argc < 3) {
fprintf(stdout, "Usage: \t%s url stream_type\n", argv[0]);
fprintf(stdout, " where stream_type is one of the SL_ANDROID_STREAM_ constants.\n");
fprintf(stdout, "Example: \"%s /sdcard/my.mp3 5\" \n", argv[0]);
fprintf(stdout, "Stream type %d is the default (media or music), %d is notifications\n",
SL_ANDROID_STREAM_MEDIA, SL_ANDROID_STREAM_NOTIFICATION);
return EXIT_FAILURE;
}
SLEngineOption EngineOption[] = {
{(SLuint32) SL_ENGINEOPTION_THREADSAFE, (SLuint32) SL_BOOLEAN_TRUE}
};
result = slCreateEngine( &sl, 1, EngineOption, 0, NULL, NULL);
ExitOnError(result);
/* Realizing the SL Engine in synchronous mode. */
result = (*sl)->Realize(sl, SL_BOOLEAN_FALSE);
ExitOnError(result);
TestStreamTypeConfiguration(sl, argv[1], (SLint32)atoi(argv[2]));
/* Shutdown OpenSL ES */
(*sl)->Destroy(sl);
return EXIT_SUCCESS;
}