int main(int argc, char **argv)
{
SLresult result;
bool loop = false;
// process command line parameters
char *prog = argv[0];
int i;
for (i = 1; i < argc; ++i) {
char *arg = argv[i];
if (arg[0] != '-')
break;
bool bad = false; // whether the option string is invalid
if (!strncmp(arg, "--mix-preset", 12)) {
if ('\0' == arg[12]) {
outputMixPresetItfRequested = true;
} else if ('=' == arg[12]) {
outputMixPresetNumber = atoi(&arg[13]);
outputMixPresetItfRequested = true;
} else {
bad = true;
}
} else if (!strncmp(arg, "--mix-name", 10)) {
if ('\0' == arg[10]) {
outputMixEnvironmentalItfRequested = true;
} else if ('=' == arg[10]) {
outputMixEnvironmentalName = &arg[11];
outputMixEnvironmentalItfRequested = true;
} else {
bad = true;
}
} else if (!strncmp(arg, "--player-preset", 15)) {
if ('\0' == arg[15]) {
playerPresetItfRequested = true;
} else if ('=' == arg[15]) {
playerPresetNumber = atoi(&arg[16]);
playerPresetItfRequested = true;
} else {
bad = true;
}
} else if (!strncmp(arg, "--player-name", 13)) {
if ('\0' == arg[13]) {
playerEnvironmentalItfRequested = true;
} else if ('=' == arg[13]) {
playerEnvironmentalName = &arg[14];
playerEnvironmentalItfRequested = true;
} else {
bad = true;
}
} else if (!strcmp(arg, "--loop")) {
loop = true;
} else {
bad = true;
}
if (bad) {
fprintf(stderr, "%s: unknown option %s ignored\n", prog, arg);
}
}
if (argc - i != 1) {
fprintf(stderr, "usage: %s --mix-preset=# --mix-name=I3DL2 --player-preset=# "
"--player-name=I3DL2 --loop filename\n", prog);
return EXIT_FAILURE;
}
char *pathname = argv[i];
const SLEnvironmentalReverbSettings *envSettings;
if (NULL != outputMixEnvironmentalName) {
envSettings = lookupEnvName(outputMixEnvironmentalName);
if (NULL == envSettings) {
fprintf(stderr, "%s: output mix environmental reverb name %s not found, "
"available names are:\n", prog, outputMixEnvironmentalName);
printEnvNames();
return EXIT_FAILURE;
}
outputMixEnvironmentalSettings = *envSettings;
}
if (NULL != playerEnvironmentalName) {
envSettings = lookupEnvName(playerEnvironmentalName);
if (NULL == envSettings) {
fprintf(stderr, "%s: player environmental reverb name %s not found, "
"available names are:\n", prog, playerEnvironmentalName);
printEnvNames();
return EXIT_FAILURE;
}
playerEnvironmentalSettings = *envSettings;
}
// create engine
SLObjectItf engineObject;
result = slCreateEngine(&engineObject, 0, NULL, 0, NULL, NULL);
assert(SL_RESULT_SUCCESS == result);
result = (*engineObject)->Realize(engineObject, SL_BOOLEAN_FALSE);
assert(SL_RESULT_SUCCESS == result);
SLEngineItf engineEngine;
result = (*engineObject)->GetInterface(engineObject, SL_IID_ENGINE, &engineEngine);
assert(SL_RESULT_SUCCESS == result);
// create output mix
SLInterfaceID mix_ids[2];
SLboolean mix_req[2];
SLuint32 count = 0;
if (outputMixPresetItfRequested) {
mix_req[count] = SL_BOOLEAN_TRUE;
mix_ids[count++] = SL_IID_PRESETREVERB;
}
if (outputMixEnvironmentalItfRequested) {
mix_req[count] = SL_BOOLEAN_TRUE;
mix_ids[count++] = SL_IID_ENVIRONMENTALREVERB;
}
SLObjectItf mixObject;
result = (*engineEngine)->CreateOutputMix(engineEngine, &mixObject, count, mix_ids, mix_req);
assert(SL_RESULT_SUCCESS == result);
result = (*mixObject)->Realize(mixObject, SL_BOOLEAN_FALSE);
assert(SL_RESULT_SUCCESS == result);
// configure preset reverb on output mix
SLPresetReverbItf outputMixPresetReverb;
if (outputMixPresetItfRequested) {
result = (*mixObject)->GetInterface(mixObject, SL_IID_PRESETREVERB, &outputMixPresetReverb);
assert(SL_RESULT_SUCCESS == result);
SLuint16 getPresetReverb = 12345;
result = (*outputMixPresetReverb)->GetPreset(outputMixPresetReverb, &getPresetReverb);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix default preset reverb number = %u\n", getPresetReverb);
if (outputMixPresetNumber != ((SLuint16) ~0)) {
result = (*outputMixPresetReverb)->SetPreset(outputMixPresetReverb,
outputMixPresetNumber);
if (SL_RESULT_SUCCESS == result) {
result = (*outputMixPresetReverb)->GetPreset(outputMixPresetReverb,
&getPresetReverb);
assert(SL_RESULT_SUCCESS == result);
assert(getPresetReverb == outputMixPresetNumber);
printf("Output mix preset reverb successfully changed to %u\n",
outputMixPresetNumber);
} else {
printf("Unable to set output mix preset reverb to %u, result=%u\n",
outputMixPresetNumber, result);
}
}
}
// configure environmental reverb on output mix
SLEnvironmentalReverbItf outputMixEnvironmentalReverb;
if (outputMixEnvironmentalItfRequested) {
result = (*mixObject)->GetInterface(mixObject, SL_IID_ENVIRONMENTALREVERB,
&outputMixEnvironmentalReverb);
assert(SL_RESULT_SUCCESS == result);
SLEnvironmentalReverbSettings getSettings;
result = (*outputMixEnvironmentalReverb)->GetEnvironmentalReverbProperties(
outputMixEnvironmentalReverb, &getSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix default environmental reverb settings\n");
printf("------------------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&getSettings);
printf("\n");
if (outputMixEnvironmentalName != NULL) {
result = (*outputMixEnvironmentalReverb)->SetEnvironmentalReverbProperties(
outputMixEnvironmentalReverb, &outputMixEnvironmentalSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix new environmental reverb settings\n");
printf("--------------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&outputMixEnvironmentalSettings);
printf("\n");
result = (*outputMixEnvironmentalReverb)->GetEnvironmentalReverbProperties(
outputMixEnvironmentalReverb, &getSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix read environmental reverb settings\n");
printf("--------------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&getSettings);
printf("\n");
if (!slesutCompareEnvironmentalReverbSettings(&getSettings,
&outputMixEnvironmentalSettings)) {
printf("Warning: new and read are different; check details above\n");
} else {
printf("New and read match, life is good\n");
}
}
}
// create audio player
SLDataLocator_URI locURI = {SL_DATALOCATOR_URI, (SLchar *) pathname};
SLDataFormat_MIME dfMIME = {SL_DATAFORMAT_MIME, NULL, SL_CONTAINERTYPE_UNSPECIFIED};
SLDataSource audioSrc = {&locURI, &dfMIME};
SLDataLocator_OutputMix locOutputMix = {SL_DATALOCATOR_OUTPUTMIX, mixObject};
SLDataSink audioSnk = {&locOutputMix, NULL};
SLInterfaceID player_ids[5];
SLboolean player_req[5];
count = 0;
if (playerPresetItfRequested) {
player_req[count] = SL_BOOLEAN_TRUE;
player_ids[count++] = SL_IID_PRESETREVERB;
}
if (playerEnvironmentalItfRequested) {
player_req[count] = SL_BOOLEAN_TRUE;
player_ids[count++] = SL_IID_ENVIRONMENTALREVERB;
}
if (outputMixPresetItfRequested || outputMixEnvironmentalItfRequested) {
player_req[count] = SL_BOOLEAN_TRUE;
player_ids[count++] = SL_IID_EFFECTSEND;
}
if (loop) {
player_req[count] = SL_BOOLEAN_TRUE;
player_ids[count++] = SL_IID_SEEK;
}
player_req[count] = SL_BOOLEAN_TRUE;
player_ids[count++] = SL_IID_PREFETCHSTATUS;
SLObjectItf playerObject;
result = (*engineEngine)->CreateAudioPlayer(engineEngine, &playerObject, &audioSrc,
&audioSnk, count, player_ids, player_req);
assert(SL_RESULT_SUCCESS == result);
// realize audio player
result = (*playerObject)->Realize(playerObject, SL_BOOLEAN_FALSE);
assert(SL_RESULT_SUCCESS == result);
// if reverb is on output mix (aux effect), then enable it for this player
if (outputMixPresetItfRequested || outputMixEnvironmentalItfRequested) {
SLEffectSendItf playerEffectSend;
result = (*playerObject)->GetInterface(playerObject, SL_IID_EFFECTSEND, &playerEffectSend);
assert(SL_RESULT_SUCCESS == result);
SLboolean enabled;
SLmillibel directLevel;
SLmillibel sendLevel;
if (outputMixPresetItfRequested) {
result = (*playerEffectSend)->IsEnabled(playerEffectSend, outputMixPresetReverb,
&enabled);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix preset reverb: player effect send default enabled = %s\n",
enabled ? "true" : "false");
directLevel = 12345;
result = (*playerEffectSend)->GetDirectLevel(playerEffectSend, &directLevel);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix preset reverb: player effect send default direct level = %d\n",
directLevel);
sendLevel = 12345;
result = (*playerEffectSend)->GetSendLevel(playerEffectSend, outputMixPresetReverb,
&sendLevel);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix preset reverb: player effect send default send level = %d\n",
sendLevel);
if (outputMixPresetNumber != ((SLuint16) ~0)) {
result = (*playerEffectSend)->EnableEffectSend(playerEffectSend,
outputMixPresetReverb, SL_BOOLEAN_TRUE, (SLmillibel) 0);
assert(SL_RESULT_SUCCESS == result);
result = (*playerEffectSend)->IsEnabled(playerEffectSend, outputMixPresetReverb,
&enabled);
assert(SL_RESULT_SUCCESS == result);
directLevel = 12345;
result = (*playerEffectSend)->GetDirectLevel(playerEffectSend, &directLevel);
assert(SL_RESULT_SUCCESS == result);
sendLevel = 12345;
result = (*playerEffectSend)->GetSendLevel(playerEffectSend, outputMixPresetReverb,
&sendLevel);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix preset reverb: player effect send new enabled = %s, direct level"
" = %d, send level = %d\n", enabled ? "true" : "false", directLevel, sendLevel);
}
}
if (outputMixEnvironmentalItfRequested) {
if (outputMixEnvironmentalName != NULL) {
result = (*playerEffectSend)->IsEnabled(playerEffectSend,
outputMixEnvironmentalReverb, &enabled);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix environmental reverb: player effect send default enabled = %s\n",
enabled ? "true" : "false");
directLevel = 12345;
result = (*playerEffectSend)->GetDirectLevel(playerEffectSend, &directLevel);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix environmental reverb: player effect send default direct level"
" = %d\n", directLevel);
sendLevel = 12345;
result = (*playerEffectSend)->GetSendLevel(playerEffectSend,
outputMixEnvironmentalReverb, &sendLevel);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix environmental reverb: player effect send default send level"
" = %d\n", sendLevel);
result = (*playerEffectSend)->EnableEffectSend(playerEffectSend,
outputMixEnvironmentalReverb, SL_BOOLEAN_TRUE, (SLmillibel) 0);
assert(SL_RESULT_SUCCESS == result);
result = (*playerEffectSend)->IsEnabled(playerEffectSend,
outputMixEnvironmentalReverb, &enabled);
assert(SL_RESULT_SUCCESS == result);
directLevel = 12345;
result = (*playerEffectSend)->GetDirectLevel(playerEffectSend, &directLevel);
assert(SL_RESULT_SUCCESS == result);
sendLevel = 12345;
result = (*playerEffectSend)->GetSendLevel(playerEffectSend,
outputMixEnvironmentalReverb, &sendLevel);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix environmental reverb: player effect send new enabled = %s, "
"direct level = %d, send level = %d\n", enabled ? "true" : "false",
directLevel, sendLevel);
}
}
}
// configure preset reverb on player
SLPresetReverbItf playerPresetReverb;
if (playerPresetItfRequested) {
result = (*playerObject)->GetInterface(playerObject, SL_IID_PRESETREVERB,
&playerPresetReverb);
assert(SL_RESULT_SUCCESS == result);
SLuint16 getPresetReverb = 12345;
result = (*playerPresetReverb)->GetPreset(playerPresetReverb, &getPresetReverb);
if (SL_RESULT_SUCCESS == result) {
printf("Player default preset reverb %u\n", getPresetReverb);
if (playerPresetNumber != ((SLuint16) ~0)) {
result = (*playerPresetReverb)->SetPreset(playerPresetReverb, playerPresetNumber);
if (SL_RESULT_SUCCESS == result) {
result = (*playerPresetReverb)->GetPreset(playerPresetReverb, &getPresetReverb);
assert(SL_RESULT_SUCCESS == result);
assert(getPresetReverb == playerPresetNumber);
printf("Player preset reverb successfully changed to %u\n", playerPresetNumber);
} else {
printf("Unable to set player preset reverb to %u, result=%u\n",
playerPresetNumber, result);
}
}
} else {
printf("Unable to get player default preset reverb, result=%u\n", result);
}
}
// configure environmental reverb on player
SLEnvironmentalReverbItf playerEnvironmentalReverb;
if (playerEnvironmentalItfRequested) {
result = (*playerObject)->GetInterface(playerObject, SL_IID_ENVIRONMENTALREVERB,
&playerEnvironmentalReverb);
assert(SL_RESULT_SUCCESS == result);
SLEnvironmentalReverbSettings getSettings;
memset(&getSettings, 0, sizeof(getSettings));
result = (*playerEnvironmentalReverb)->GetEnvironmentalReverbProperties(
playerEnvironmentalReverb, &getSettings);
if (SL_RESULT_SUCCESS == result) {
printf("Player default environmental reverb settings\n");
printf("--------------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&getSettings);
printf("\n");
if (playerEnvironmentalName != NULL) {
result = (*playerEnvironmentalReverb)->SetEnvironmentalReverbProperties(
playerEnvironmentalReverb, &playerEnvironmentalSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Player new environmental reverb settings\n");
printf("----------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&playerEnvironmentalSettings);
printf("\n");
result = (*playerEnvironmentalReverb)->GetEnvironmentalReverbProperties(
playerEnvironmentalReverb, &getSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Player read environmental reverb settings\n");
printf("-----------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&getSettings);
printf("\n");
if (!slesutCompareEnvironmentalReverbSettings(&getSettings,
&playerEnvironmentalSettings)) {
printf("Warning: new and read are different; check details above\n");
} else {
printf("New and read match, life is good\n");
}
}
} else {
printf("Unable to get player default environmental reverb properties, result=%u\n",
result);
}
}
// get the play interface
SLPlayItf playerPlay;
result = (*playerObject)->GetInterface(playerObject, SL_IID_PLAY, &playerPlay);
assert(SL_RESULT_SUCCESS == result);
// get the prefetch status interface
SLPrefetchStatusItf playerPrefetchStatus;
result = (*playerObject)->GetInterface(playerObject, SL_IID_PREFETCHSTATUS,
&playerPrefetchStatus);
assert(SL_RESULT_SUCCESS == result);
// enable prefetch status callbacks
result = (*playerPrefetchStatus)->RegisterCallback(playerPrefetchStatus, prefetch_callback,
NULL);
assert(SL_RESULT_SUCCESS == result);
result = (*playerPrefetchStatus)->SetCallbackEventsMask(playerPrefetchStatus,
SL_PREFETCHEVENT_STATUSCHANGE | SL_PREFETCHEVENT_FILLLEVELCHANGE);
assert(SL_RESULT_SUCCESS == result);
// set play state to paused to enable pre-fetch so we can get a more reliable duration
result = (*playerPlay)->SetPlayState(playerPlay, SL_PLAYSTATE_PAUSED);
assert(SL_RESULT_SUCCESS == result);
// wait for prefetch status callback to indicate either sufficient data or error
pthread_mutex_lock(&mutex);
while (prefetch_status == SL_PREFETCHSTATUS_UNKNOWN) {
pthread_cond_wait(&cond, &mutex);
}
pthread_mutex_unlock(&mutex);
if (prefetch_status == SL_PREFETCHSTATUS_ERROR) {
fprintf(stderr, "Error during prefetch, exiting\n");
goto destroyRes;
}
// get the duration
SLmillisecond duration;
result = (*playerPlay)->GetDuration(playerPlay, &duration);
assert(SL_RESULT_SUCCESS == result);
if (SL_TIME_UNKNOWN == duration) {
printf("duration: unknown\n");
} else {
printf("duration: %.1f seconds\n", duration / 1000.0);
}
// enable looping
if (loop) {
SLSeekItf playerSeek;
result = (*playerObject)->GetInterface(playerObject, SL_IID_SEEK, &playerSeek);
assert(SL_RESULT_SUCCESS == result);
result = (*playerSeek)->SetLoop(playerSeek, SL_BOOLEAN_TRUE, (SLmillisecond) 0,
SL_TIME_UNKNOWN);
assert(SL_RESULT_SUCCESS == result);
}
// start audio playing
result = (*playerPlay)->SetPlayState(playerPlay, SL_PLAYSTATE_PLAYING);
assert(SL_RESULT_SUCCESS == result);
// wait for audio to finish playing
SLuint32 state;
for (;;) {
result = (*playerPlay)->GetPlayState(playerPlay, &state);
assert(SL_RESULT_SUCCESS == result);
if (SL_PLAYSTATE_PLAYING != state)
break;
usleep(1000000);
}
assert(SL_PLAYSTATE_PAUSED == state);
destroyRes:
// cleanup objects
(*playerObject)->Destroy(playerObject);
(*mixObject)->Destroy(mixObject);
(*engineObject)->Destroy(engineObject);
return EXIT_SUCCESS;
}
int main(int argc, char **argv)
{
SLresult result;
// process command line parameters
char *prog = argv[0];
int i;
for (i = 1; i < argc; ++i) {
char *arg = argv[i];
if (arg[0] != '-')
break;
if (!strncmp(arg, "--mix-preset=", 13)) {
mixPresetNumber = atoi(&arg[13]);
} else if (!strncmp(arg, "--mix-name=", 11)) {
mixEnvName = &arg[11];
} else if (!strncmp(arg, "--player-preset=", 16)) {
playerPresetNumber = atoi(&arg[16]);
} else if (!strncmp(arg, "--player-name=", 14)) {
playerEnvName = &arg[14];
} else {
fprintf(stderr, "%s: unknown option %s ignored\n", prog, arg);
}
}
if (argc - i != 1) {
fprintf(stderr, "usage: %s --mix-preset=# --mix-name=I3DL2 --player-preset=# "
"--player-name=I3DL2 filename\n", prog);
return EXIT_FAILURE;
}
char *pathname = argv[i];
const SLEnvironmentalReverbSettings *envSettings;
if (NULL != mixEnvName) {
envSettings = lookupEnvName(mixEnvName);
if (NULL == envSettings) {
fprintf(stderr, "%s: mix environmental reverb name %s not found, "
"available names are:\n", prog, mixEnvName);
printEnvNames();
return EXIT_FAILURE;
}
mixEnvSettings = *envSettings;
}
if (NULL != playerEnvName) {
envSettings = lookupEnvName(playerEnvName);
if (NULL == envSettings) {
fprintf(stderr, "%s: player environmental reverb name %s not found, "
"available names are:\n", prog, playerEnvName);
printEnvNames();
return EXIT_FAILURE;
}
playerEnvSettings = *envSettings;
}
// create engine
SLObjectItf engineObject;
result = slCreateEngine(&engineObject, 0, NULL, 0, NULL, NULL);
assert(SL_RESULT_SUCCESS == result);
result = (*engineObject)->Realize(engineObject, SL_BOOLEAN_FALSE);
assert(SL_RESULT_SUCCESS == result);
SLEngineItf engineEngine;
result = (*engineObject)->GetInterface(engineObject, SL_IID_ENGINE, &engineEngine);
assert(SL_RESULT_SUCCESS == result);
// create output mix
SLInterfaceID mix_ids[2];
SLboolean mix_req[2];
SLuint32 count = 0;
if (mixPresetNumber != ((SLuint16) ~0)) {
mix_req[count] = SL_BOOLEAN_TRUE;
mix_ids[count++] = SL_IID_PRESETREVERB;
}
if (mixEnvName != NULL) {
mix_req[count] = SL_BOOLEAN_TRUE;
mix_ids[count++] = SL_IID_ENVIRONMENTALREVERB;
}
SLObjectItf mixObject;
result = (*engineEngine)->CreateOutputMix(engineEngine, &mixObject, count, mix_ids, mix_req);
assert(SL_RESULT_SUCCESS == result);
result = (*mixObject)->Realize(mixObject, SL_BOOLEAN_FALSE);
assert(SL_RESULT_SUCCESS == result);
// configure preset reverb on output mix
SLPresetReverbItf mixPresetReverb;
if (mixPresetNumber != ((SLuint16) ~0)) {
result = (*mixObject)->GetInterface(mixObject, SL_IID_PRESETREVERB, &mixPresetReverb);
assert(SL_RESULT_SUCCESS == result);
SLuint16 getPresetReverb = 12345;
result = (*mixPresetReverb)->GetPreset(mixPresetReverb, &getPresetReverb);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix default preset reverb %u\n", getPresetReverb);
result = (*mixPresetReverb)->SetPreset(mixPresetReverb, mixPresetNumber);
if (SL_RESULT_SUCCESS == result) {
result = (*mixPresetReverb)->GetPreset(mixPresetReverb, &getPresetReverb);
assert(SL_RESULT_SUCCESS == result);
assert(getPresetReverb == mixPresetNumber);
printf("Output mix preset reverb successfully changed to %u\n", mixPresetNumber);
} else
printf("Unable to set output mix preset reverb to %u, result=%lu\n", mixPresetNumber,
result);
}
// configure environmental reverb on output mix
SLEnvironmentalReverbItf mixEnvironmentalReverb;
if (mixEnvName != NULL) {
result = (*mixObject)->GetInterface(mixObject, SL_IID_ENVIRONMENTALREVERB,
&mixEnvironmentalReverb);
assert(SL_RESULT_SUCCESS == result);
SLEnvironmentalReverbSettings getSettings;
result = (*mixEnvironmentalReverb)->GetEnvironmentalReverbProperties(mixEnvironmentalReverb,
&getSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix default environmental reverb settings\n");
printf("------------------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&getSettings);
printf("\n");
result = (*mixEnvironmentalReverb)->SetEnvironmentalReverbProperties(mixEnvironmentalReverb,
&mixEnvSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix new environmental reverb settings\n");
printf("--------------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&mixEnvSettings);
printf("\n");
result = (*mixEnvironmentalReverb)->GetEnvironmentalReverbProperties(mixEnvironmentalReverb,
&getSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Output mix read environmental reverb settings\n");
printf("--------------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&getSettings);
printf("\n");
if (!slesutCompareEnvronmentalReverbSettings(&getSettings, &mixEnvSettings)) {
printf("Warning: new and read are different; check details above\n");
} else {
printf("New and read match, life is good\n");
}
}
// create audio player
SLDataLocator_URI locURI = {SL_DATALOCATOR_URI, (SLchar *) pathname};
SLDataFormat_MIME dfMIME = {SL_DATAFORMAT_MIME, NULL, SL_CONTAINERTYPE_UNSPECIFIED};
SLDataSource audioSrc = {&locURI, &dfMIME};
SLDataLocator_OutputMix locOutputMix = {SL_DATALOCATOR_OUTPUTMIX, mixObject};
SLDataSink audioSnk = {&locOutputMix, NULL};
SLInterfaceID player_ids[4];
SLboolean player_req[4];
count = 0;
if (playerPresetNumber != ((SLuint16) ~0)) {
player_req[count] = SL_BOOLEAN_TRUE;
player_ids[count++] = SL_IID_PRESETREVERB;
}
if (playerEnvName != NULL) {
player_req[count] = SL_BOOLEAN_TRUE;
player_ids[count++] = SL_IID_ENVIRONMENTALREVERB;
}
if (mixPresetNumber != ((SLuint16) ~0) || mixEnvName != NULL) {
player_req[count] = SL_BOOLEAN_TRUE;
player_ids[count++] = SL_IID_EFFECTSEND;
}
player_req[count] = SL_BOOLEAN_TRUE;
player_ids[count++] = SL_IID_PREFETCHSTATUS;
SLObjectItf playerObject;
result = (*engineEngine)->CreateAudioPlayer(engineEngine, &playerObject, &audioSrc,
&audioSnk, count, player_ids, player_req);
assert(SL_RESULT_SUCCESS == result);
// realize audio player
result = (*playerObject)->Realize(playerObject, SL_BOOLEAN_FALSE);
assert(SL_RESULT_SUCCESS == result);
// if reverb is on output mix (aux effect), then enable it for this player
if (mixPresetNumber != ((SLuint16) ~0) || mixEnvName != NULL) {
SLEffectSendItf playerEffectSend;
result = (*playerObject)->GetInterface(playerObject, SL_IID_EFFECTSEND, &playerEffectSend);
assert(SL_RESULT_SUCCESS == result);
if (mixPresetNumber != ((SLuint16) ~0)) {
result = (*playerEffectSend)->EnableEffectSend(playerEffectSend, mixPresetReverb,
SL_BOOLEAN_TRUE, (SLmillibel) 0);
assert(SL_RESULT_SUCCESS == result);
}
if (mixEnvName != NULL) {
result = (*playerEffectSend)->EnableEffectSend(playerEffectSend, mixEnvironmentalReverb,
SL_BOOLEAN_TRUE, (SLmillibel) 0);
assert(SL_RESULT_SUCCESS == result);
}
}
// configure preset reverb on player
SLPresetReverbItf playerPresetReverb;
if (playerPresetNumber != ((SLuint16) ~0)) {
result = (*playerObject)->GetInterface(playerObject, SL_IID_PRESETREVERB,
&playerPresetReverb);
assert(SL_RESULT_SUCCESS == result);
SLuint16 getPresetReverb = 12345;
result = (*playerPresetReverb)->GetPreset(playerPresetReverb, &getPresetReverb);
assert(SL_RESULT_SUCCESS == result);
printf("Player default preset reverb %u\n", getPresetReverb);
result = (*playerPresetReverb)->SetPreset(playerPresetReverb, playerPresetNumber);
if (SL_RESULT_SUCCESS == result) {
result = (*playerPresetReverb)->GetPreset(playerPresetReverb, &getPresetReverb);
assert(SL_RESULT_SUCCESS == result);
assert(getPresetReverb == playerPresetNumber);
printf("Player preset reverb successfully changed to %u\n", playerPresetNumber);
} else
printf("Unable to set player preset reverb to %u, result=%lu\n", playerPresetNumber,
result);
}
// configure environmental reverb on player
SLEnvironmentalReverbItf playerEnvironmentalReverb;
if (playerEnvName != NULL) {
result = (*playerObject)->GetInterface(playerObject, SL_IID_ENVIRONMENTALREVERB,
&playerEnvironmentalReverb);
assert(SL_RESULT_SUCCESS == result);
SLEnvironmentalReverbSettings getSettings;
memset(&getSettings, 0, sizeof(getSettings));
result = (*playerEnvironmentalReverb)->GetEnvironmentalReverbProperties(
playerEnvironmentalReverb, &getSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Player default environmental reverb settings\n");
printf("--------------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&getSettings);
printf("\n");
result = (*playerEnvironmentalReverb)->SetEnvironmentalReverbProperties(
playerEnvironmentalReverb, &playerEnvSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Player new environmental reverb settings\n");
printf("----------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&playerEnvSettings);
printf("\n");
result = (*playerEnvironmentalReverb)->GetEnvironmentalReverbProperties(
playerEnvironmentalReverb, &getSettings);
assert(SL_RESULT_SUCCESS == result);
printf("Player read environmental reverb settings\n");
printf("-----------------------------------------\n");
slesutPrintEnvironmentalReverbSettings(&getSettings);
printf("\n");
if (!slesutCompareEnvronmentalReverbSettings(&getSettings, &playerEnvSettings)) {
printf("Warning: new and read are different; check details above\n");
} else {
printf("New and read match, life is good\n");
}
}
// get the play interface
SLPlayItf playerPlay;
result = (*playerObject)->GetInterface(playerObject, SL_IID_PLAY, &playerPlay);
assert(SL_RESULT_SUCCESS == result);
// set play state to paused to enable pre-fetch so we can get a more reliable duration
result = (*playerPlay)->SetPlayState(playerPlay, SL_PLAYSTATE_PAUSED);
assert(SL_RESULT_SUCCESS == result);
// get the prefetch status interface
SLPrefetchStatusItf playerPrefetchStatus;
result = (*playerObject)->GetInterface(playerObject, SL_IID_PREFETCHSTATUS,
&playerPrefetchStatus);
assert(SL_RESULT_SUCCESS == result);
// poll prefetch status to detect when it completes
SLuint32 prefetchStatus = SL_PREFETCHSTATUS_UNDERFLOW;
SLuint32 timeOutIndex = 100; // 10s
while ((prefetchStatus != SL_PREFETCHSTATUS_SUFFICIENTDATA) && (timeOutIndex > 0)) {
usleep(100 * 1000);
(*playerPrefetchStatus)->GetPrefetchStatus(playerPrefetchStatus, &prefetchStatus);
timeOutIndex--;
}
if (timeOutIndex == 0) {
fprintf(stderr, "\nWe\'re done waiting, failed to prefetch data in time, exiting\n");
goto destroyRes;
}
// get the duration
SLmillisecond duration;
result = (*playerPlay)->GetDuration(playerPlay, &duration);
assert(SL_RESULT_SUCCESS == result);
if (SL_TIME_UNKNOWN == duration) {
printf("duration: unknown\n");
} else {
printf("duration: %.1f seconds\n", duration / 1000.0);
}
// start audio playing
result = (*playerPlay)->SetPlayState(playerPlay, SL_PLAYSTATE_PLAYING);
assert(SL_RESULT_SUCCESS == result);
// wait for audio to finish playing
SLuint32 state;
for (;;) {
result = (*playerPlay)->GetPlayState(playerPlay, &state);
assert(SL_RESULT_SUCCESS == result);
if (SL_PLAYSTATE_PLAYING != state)
break;
usleep(1000000);
}
assert(SL_PLAYSTATE_PAUSED == state);
destroyRes:
// cleanup objects
(*playerObject)->Destroy(playerObject);
(*mixObject)->Destroy(mixObject);
(*engineObject)->Destroy(engineObject);
return EXIT_SUCCESS;
}