/*
* Copyright (C) 2011 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 <unistd.h>
//#include <sys/time.h>
#include <SLES/OpenSLES.h>
#define MAX_NUMBER_INTERFACES 2
#define MAX_NUMBER_PLAYERS 40
#define PREFETCHEVENT_ERROR_CANDIDATE \
(SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE)
/* the OpenSL ES engine from which we create all other resources */
SLObjectItf slEngine;
SLEngineItf engineItf;
SLObjectItf outputMix;
SLboolean required[MAX_NUMBER_INTERFACES];
SLInterfaceID iidArray[MAX_NUMBER_INTERFACES];
SLObjectItf audioPlayer[MAX_NUMBER_PLAYERS];
bool validplayer[MAX_NUMBER_PLAYERS];
int playerNum[MAX_NUMBER_PLAYERS];
SLPlayItf playItfs[MAX_NUMBER_PLAYERS];
SLVolumeItf volItfs[MAX_NUMBER_PLAYERS];
SLPrefetchStatusItf prefetchItfs[MAX_NUMBER_PLAYERS];
SLDataSource audioSource;
SLDataLocator_URI uri;
SLDataFormat_MIME mime;
SLDataSink audioSink;
SLDataLocator_OutputMix locator_outputmix;
//-----------------------------------------------------------------
//* Exits the application if an error is encountered */
#define CheckErr(x) ExitOnErrorFunc(x, -1, __LINE__)
#define CheckErrPlyr(x, id) ExitOnErrorFunc(x, id, __LINE__)
void ExitOnErrorFunc( SLresult result, int playerId, int line)
{
if (SL_RESULT_SUCCESS != result) {
if (playerId == -1) {
fprintf(stderr, "Error %u code encountered at line %d, exiting\n", result, line);
} else {
fprintf(stderr, "Error %u code encountered at line %d for player %d, exiting\n",
result, line, playerId);
}
exit(EXIT_FAILURE);
}
}
//-----------------------------------------------------------------
/* PrefetchStatusItf callback for an audio player */
void PrefetchEventCallback( SLPrefetchStatusItf caller, void *pContext, SLuint32 event)
{
SLresult res;
SLpermille level = 0;
int* pPlayerId = (int*)pContext;
res = (*caller)->GetFillLevel(caller, &level); CheckErrPlyr(res, *pPlayerId);
SLuint32 status;
//fprintf(stdout, "PrefetchEventCallback: received event %u\n", event);
res = (*caller)->GetPrefetchStatus(caller, &status); CheckErrPlyr(res, *pPlayerId);
if ((PREFETCHEVENT_ERROR_CANDIDATE == (event & PREFETCHEVENT_ERROR_CANDIDATE))
&& (level == 0) && (status == SL_PREFETCHSTATUS_UNDERFLOW)) {
fprintf(stdout, "PrefetchEventCallback: Error while prefetching data for player %d, "
"exiting\n", *pPlayerId);
exit(EXIT_FAILURE);
}
if (event & SL_PREFETCHEVENT_FILLLEVELCHANGE) {
fprintf(stdout, "PrefetchEventCallback: Buffer fill level is = %d for player %d\n",
level, *pPlayerId);
}
if (event & SL_PREFETCHEVENT_STATUSCHANGE) {
fprintf(stdout, "PrefetchEventCallback: Prefetch Status is = %u for player %d\n",
status, *pPlayerId);
}
}
//-----------------------------------------------------------------
/* PlayItf callback for playback events */
void PlayEventCallback(
SLPlayItf caller,
void *pContext,
SLuint32 event)
{
SLresult res;
int* pPlayerId = (int*)pContext;
if (SL_PLAYEVENT_HEADATEND & event) {
fprintf(stdout, "SL_PLAYEVENT_HEADATEND reached for player %d\n", *pPlayerId);
//SignalEos();
}
if (SL_PLAYEVENT_HEADATNEWPOS & event) {
SLmillisecond pMsec = 0;
res = (*caller)->GetPosition(caller, &pMsec); CheckErrPlyr(res, *pPlayerId);
fprintf(stdout, "SL_PLAYEVENT_HEADATNEWPOS current position=%ums for player %d\n",
pMsec, *pPlayerId);
}
if (SL_PLAYEVENT_HEADATMARKER & event) {
SLmillisecond pMsec = 0;
res = (*caller)->GetPosition(caller, &pMsec); CheckErrPlyr(res, *pPlayerId);
fprintf(stdout, "SL_PLAYEVENT_HEADATMARKER current position=%ums for player %d\n",
pMsec, *pPlayerId);
}
}
//-----------------------------------------------------------------
void TestSetup(const char* path) {
SLint32 numOutputs = 0;
SLuint32 deviceID = 0;
SLresult res;
/* Create the engine */
SLEngineOption EngineOption[] = {
{(SLuint32) SL_ENGINEOPTION_THREADSAFE,
(SLuint32) SL_BOOLEAN_TRUE}};
res = slCreateEngine( &slEngine, 1, EngineOption, 0, NULL, NULL);
CheckErr(res);
/* Realizing the SL Engine in synchronous mode. */
res = (*slEngine)->Realize(slEngine, SL_BOOLEAN_FALSE);
CheckErr(res);
/* Get the SL Engine Interface which is implicit */
res = (*slEngine)->GetInterface(slEngine, SL_IID_ENGINE, (void*)&engineItf);
CheckErr(res);
/* Create Output Mix object to be used by player */
res = (*engineItf)->CreateOutputMix(engineItf, &outputMix, 0,
iidArray, required); CheckErr(res);
/* Realizing the Output Mix object in synchronous mode. */
res = (*outputMix)->Realize(outputMix, SL_BOOLEAN_FALSE);
CheckErr(res);
/* Setup the data source structure for the URI */
// the syntax below is more future-proof than the individual field initialization
// with regards to OpenSL ES 1.1 but adds scary compilation warnings
//uri = { SL_DATALOCATOR_URI /*locatorType*/, (SLchar*) path /*URI*/ };
//mime = { /*formatType*/ SL_DATAFORMAT_MIME, /*mimeType*/ (SLchar*)NULL,
// /*containerType*/ SL_CONTAINERTYPE_UNSPECIFIED };
uri.locatorType = SL_DATALOCATOR_URI;
uri.URI = (SLchar*) path;
mime.formatType = SL_DATAFORMAT_MIME;
mime.mimeType = (SLchar*)NULL;
mime.containerType = SL_CONTAINERTYPE_UNSPECIFIED;
audioSource.pFormat = (void *)&mime;
audioSource.pLocator = (void *)&uri;
/* Setup the data sink structure */
locator_outputmix.locatorType = SL_DATALOCATOR_OUTPUTMIX;
locator_outputmix.outputMix = outputMix;
audioSink.pLocator = (void *)&locator_outputmix;
audioSink.pFormat = NULL;
/* Initialize arrays required[] and iidArray[] */
for (int i=0 ; i < MAX_NUMBER_INTERFACES ; i++) {
required[i] = SL_BOOLEAN_FALSE;
iidArray[i] = SL_IID_NULL;
}
/* Set arrays required[] and iidArray[] for VOLUME and PREFETCHSTATUS interface */
required[0] = SL_BOOLEAN_TRUE;
iidArray[0] = SL_IID_VOLUME;
required[1] = SL_BOOLEAN_TRUE;
iidArray[1] = SL_IID_PREFETCHSTATUS;
fprintf(stdout, "TestSetup(%s) completed\n", path);
}
//-----------------------------------------------------------------
void TestTeardown() {
/* Destroy Output Mix object */
(*outputMix)->Destroy(outputMix);
/* Shutdown OpenSL ES */
(*slEngine)->Destroy(slEngine);
}
//-----------------------------------------------------------------
/**
* Create a player and, if the creation is successful,
* configure it, and start playing.
*/
void CreatePlayer(int playerId) {
SLresult res;
playerNum[playerId] = playerId;
/* Create the audio player */
res = (*engineItf)->CreateAudioPlayer(engineItf, &audioPlayer[playerId],
&audioSource, &audioSink, MAX_NUMBER_INTERFACES, iidArray, required);
if (SL_RESULT_SUCCESS != res) {
// do not abort the test, just flag the player as not a candidate for destruction
fprintf(stdout, "CreateAudioPlayer for player %d failed\n", playerId);
validplayer[playerId] = false;
return;
}
validplayer[playerId] = true;
/* Realizing the player in synchronous mode. */
res = (*audioPlayer[playerId])->Realize(audioPlayer[playerId], SL_BOOLEAN_FALSE);
if (SL_RESULT_SUCCESS != res) {
// do not abort the test, just stop the player initialization here
fprintf(stdout, "Realize for player %d failed\n", playerId);
// this player is still a candidate for destruction
return;
}
// after this point, any failure is a test failure
/* Get interfaces */
res = (*audioPlayer[playerId])->GetInterface(audioPlayer[playerId], SL_IID_PLAY,
(void*)&playItfs[playerId]);
CheckErrPlyr(res, playerId);
res = (*audioPlayer[playerId])->GetInterface(audioPlayer[playerId], SL_IID_VOLUME,
(void*)&volItfs[playerId]);
CheckErrPlyr(res, playerId);
res = (*audioPlayer[playerId])->GetInterface(audioPlayer[playerId], SL_IID_PREFETCHSTATUS,
(void*)&prefetchItfs[playerId]);
CheckErrPlyr(res, playerId);
res = (*prefetchItfs[playerId])->RegisterCallback(prefetchItfs[playerId], PrefetchEventCallback,
&playerNum[playerId]);
CheckErrPlyr(res, playerId);
res = (*prefetchItfs[playerId])->SetCallbackEventsMask(prefetchItfs[playerId],
SL_PREFETCHEVENT_FILLLEVELCHANGE | SL_PREFETCHEVENT_STATUSCHANGE);
CheckErrPlyr(res, playerId);
/* Set the player volume */
res = (*volItfs[playerId])->SetVolumeLevel( volItfs[playerId], -300);
CheckErrPlyr(res, playerId);
/* Set up the player callback to get events during the decoding */
res = (*playItfs[playerId])->SetMarkerPosition(playItfs[playerId], 2000);
CheckErrPlyr(res, playerId);
res = (*playItfs[playerId])->SetPositionUpdatePeriod(playItfs[playerId], 500);
CheckErrPlyr(res, playerId);
res = (*playItfs[playerId])->SetCallbackEventsMask(playItfs[playerId],
SL_PLAYEVENT_HEADATMARKER | SL_PLAYEVENT_HEADATNEWPOS | SL_PLAYEVENT_HEADATEND);
CheckErrPlyr(res, playerId);
res = (*playItfs[playerId])->RegisterCallback(playItfs[playerId], PlayEventCallback,
&playerNum[playerId]);
CheckErrPlyr(res, playerId);
/* Configure fill level updates every 5 percent */
(*prefetchItfs[playerId])->SetFillUpdatePeriod(prefetchItfs[playerId], 50);
/* Play the URI */
/* first cause the player to prefetch the data */
fprintf(stdout, "Setting player %d to PAUSED\n", playerId);
res = (*playItfs[playerId])->SetPlayState( playItfs[playerId], SL_PLAYSTATE_PAUSED );
CheckErrPlyr(res, playerId);
/* wait until there's data to play */
SLuint32 prefetchStatus = SL_PREFETCHSTATUS_UNDERFLOW;
SLuint32 timeOutIndex = 10; // 1s, should be enough for a local file
while ((prefetchStatus != SL_PREFETCHSTATUS_SUFFICIENTDATA) && (timeOutIndex > 0)) {
usleep(100 * 1000);
res = (*prefetchItfs[playerId])->GetPrefetchStatus(prefetchItfs[playerId], &prefetchStatus);
CheckErrPlyr(res, playerId);
timeOutIndex--;
}
if (timeOutIndex == 0) {
fprintf(stderr, "Prefetch timed out for player %d\n", playerId);
return;
}
res = (*playItfs[playerId])->SetPlayState( playItfs[playerId], SL_PLAYSTATE_PLAYING );
CheckErrPlyr(res, playerId);
/* Display duration */
SLmillisecond durationInMsec = SL_TIME_UNKNOWN;
res = (*playItfs[playerId])->GetDuration(playItfs[playerId], &durationInMsec);
CheckErrPlyr(res, playerId);
if (durationInMsec == SL_TIME_UNKNOWN) {
fprintf(stdout, "Content duration is unknown for player %d\n", playerId);
} else {
fprintf(stdout, "Content duration is %u ms for player %d\n", durationInMsec, playerId);
}
}
//-----------------------------------------------------------------
void DestroyPlayer(int playerId) {
fprintf(stdout, "About to destroy player %d\n", playerId);
/* Destroy the player */
(*audioPlayer[playerId])->Destroy(audioPlayer[playerId]);
}
//-----------------------------------------------------------------
int main(int argc, char* const argv[])
{
fprintf(stdout, "OpenSL ES test %s: creates and destroys as many ", argv[0]);
fprintf(stdout, "AudioPlayer objects as possible (max=%d)\n\n", MAX_NUMBER_PLAYERS);
if (argc == 1) {
fprintf(stdout, "Usage: %s path \n\t%s url\n", argv[0], argv[0]);
fprintf(stdout, "Example: \"%s /sdcard/my.mp3\" or \"%s file:///sdcard/my.mp3\"\n",
argv[0], argv[0]);
exit(EXIT_FAILURE);
}
TestSetup(argv[1]);
for (int i=0 ; i<MAX_NUMBER_PLAYERS ; i++) {
CreatePlayer(i);
}
fprintf(stdout, "After creating %d AudioPlayers\n", MAX_NUMBER_PLAYERS);
/* Wait for an arbitrary amount of time. if playing a long file, the players will still
be playing while the destructions start. */
usleep(10*1000*1000); // 10s
for (int i=0 ; i<MAX_NUMBER_PLAYERS ; i++) {
if (validplayer[i]) {
DestroyPlayer(i);
}
}
fprintf(stdout, "After destroying valid players among %d AudioPlayers\n", MAX_NUMBER_PLAYERS);
TestTeardown();
return EXIT_SUCCESS;
}