/*
* Class: com_spoledge_aacdecoder_Decoder
* Method: nativeDecode
* Signature: (I[SI)I
*/
JNIEXPORT jlong JNICALL Java_com_spoledge_aacdecoder_Decoder_nativeDecode
(JNIEnv *env, jobject thiz, jlong jinfo, jshortArray outBuf, jint outLen)
{
AACDInfo *info = (AACDInfo*) jinfo;
info->env = env;
// prepare internal output buffer :
jshort *jsamples = aacd_prepare_samples( info, outLen );
aacd_decode( info, jsamples, outLen );
// copy samples back to Java heap:
(*env)->SetShortArrayRegion( env, outBuf, 0, info->round_samples, jsamples );
aacd_decode_info2java( info );
info->env = NULL;
return (jlong) info->round_samples;
}
static long aacd_opencore_start( AACDInfo *info, unsigned char *buffer, unsigned long buffer_size)
{
AACD_TRACE( "start() buffer=%x size=%d", (*(unsigned long*)buffer), buffer_size );
AACDOpenCore *oc = (AACDOpenCore*) info->ext;
tPVMP4AudioDecoderExternal *pExt = oc->pExt;
pExt->remainderBits = 0;
pExt->frameLength = 0;
// prepare the first samples buffer:
//pExt->pOutputBuffer = malloc(4096 * sizeof(int16_t));
//pExt->pOutputBuffer_plus = pExt->pOutputBuffer + 2048;
pExt->pOutputBuffer = aacd_prepare_samples( info, 4096 );
pExt->pOutputBuffer_plus = pExt->pOutputBuffer + 2048;
int32_t status;
int frameDecoded = 0;
int attempts = 16;
/* pre-init search adts sync */
while (pExt->frameLength == 0 && attempts--) {
pExt->pInputBuffer = buffer;
pExt->inputBufferMaxLength = buffer_size;
pExt->inputBufferCurrentLength = buffer_size;
pExt->inputBufferUsedLength = 0;
status = PVMP4AudioDecoderConfig(pExt, oc->pMem);
AACD_DEBUG( "start() Status[0]: %d", status );
if (status != MP4AUDEC_SUCCESS) {
status = PVMP4AudioDecodeFrame(pExt, oc->pMem);
AACD_DEBUG( "start() Status[1]: %d", status );
buffer -= pExt->inputBufferUsedLength;
buffer_size -= pExt->inputBufferUsedLength;
if (MP4AUDEC_SUCCESS == status) {
AACD_DEBUG( "start() frameLength: %d\n", pExt->frameLength);
frameDecoded = 1;
continue;
}
}
if (buffer_size <= PVMP4AUDIODECODER_INBUFSIZE) break;
}
if (!frameDecoded)
{
AACD_INFO( "start() No stream info available - trying to decode a frame" );
if (buffer_size >= PVMP4AUDIODECODER_INBUFSIZE) status = PVMP4AudioDecodeFrame(pExt, oc->pMem);
else AACD_WARN( "start() Input buffer too small" );
}
//free( pExt->pOutputBuffer );
if (status != MP4AUDEC_SUCCESS)
{
AACD_ERROR( "start() init failed status=%d", status );
return -1;
}
AACD_DEBUG( "start() bytesconsumed=%d", pExt->inputBufferUsedLength );
int streamType = -1;
if ((pExt->extendedAudioObjectType == MP4AUDIO_AAC_LC) ||
(pExt->extendedAudioObjectType == MP4AUDIO_LTP))
{
streamType = AAC;
}
else if (pExt->extendedAudioObjectType == MP4AUDIO_SBR)
{
streamType = AACPLUS;
}
else if (pExt->extendedAudioObjectType == MP4AUDIO_PS)
{
streamType = ENH_AACPLUS;
}
AACD_DEBUG( "start() streamType=%d", streamType );
if ((AAC == streamType) && (2 == pExt->aacPlusUpsamplingFactor))
{
AACD_INFO( "start() DisableAacPlus" );
PVMP4AudioDecoderDisableAacPlus(pExt, oc->pMem);
}
info->samplerate = pExt->samplingRate;
info->channels = pExt->desiredChannels;
oc->frameSamplesFactor = pExt->desiredChannels;
if (2 == pExt->aacPlusUpsamplingFactor) oc->frameSamplesFactor *= 2;
info->frame_bytesconsumed = pExt->inputBufferUsedLength;
info->frame_samples = pExt->frameLength * oc->frameSamplesFactor;
return pExt->inputBufferUsedLength;
}
static long aacd_opencoremp3_start( AACDInfo *info, unsigned char *buffer, unsigned long buffer_size)
{
AACD_TRACE( "start() buffer=%x size=%d", (*(unsigned long*)buffer), buffer_size );
AACDOpenCoreMP3 *oc = (AACDOpenCoreMP3*) info->ext;
tPVMP3DecoderExternal *pExt = oc->pExt;
// prepare the first samples buffer:
//pExt->pOutputBuffer = malloc(4096 * sizeof(int16_t));
pExt->pOutputBuffer = aacd_prepare_samples( info, 4096 );
pExt->outputFrameSize = 4096;
pExt->pInputBuffer = buffer;
pExt->inputBufferMaxLength = buffer_size;
pExt->inputBufferCurrentLength = buffer_size;
pExt->inputBufferUsedLength = 0;
pExt->crcEnabled = 0;
pExt->equalizerType = flat;
pvmp3_InitDecoder( oc->pExt, oc->pMem );
int32_t status;
int frameDecoded = 0;
int attempts = 16;
int totalConsumed = 0;
pExt->outputFrameSize = 0;
/* pre-init search adts sync */
while (!frameDecoded && attempts--) {
pExt->pInputBuffer = buffer;
pExt->inputBufferMaxLength = buffer_size;
pExt->inputBufferCurrentLength = buffer_size;
pExt->inputBufferUsedLength = 0;
pExt->outputFrameSize = 4096;
status = pvmp3_framedecoder(pExt, oc->pMem);
AACD_DEBUG( "start() Status[0]: %d - consumed %d bytes", status, pExt->inputBufferUsedLength );
totalConsumed += pExt->inputBufferUsedLength;
if (status != NO_DECODING_ERROR) {
AACD_ERROR( "start() frame decode error=%d", status );
if (!pExt->inputBufferUsedLength) {
AACD_ERROR( "start() first frame cannot be decoded - trying to sync again" );
int move = buffer_size < 2048 ? (buffer_size >> 1) : 1024;
buffer += move;
buffer_size -= move;
totalConsumed += move;
pExt->pInputBuffer = buffer;
pExt->inputBufferMaxLength = buffer_size;
pExt->inputBufferCurrentLength = buffer_size;
ERROR_CODE err = pvmp3_frame_synch( oc->pExt, oc->pMem );
if (err == SYNCH_LOST_ERROR) {
AACD_ERROR( "start() cannot re-sync the stream after next %d bytes, status=%d", move, err );
}
else if (err != NO_DECODING_ERROR) {
AACD_ERROR( "start() cannot sync the stream status=%d", err );
break;
}
else {
totalConsumed += pExt->inputBufferUsedLength;
AACD_INFO( "start() sync was successful - used bytes=%d", totalConsumed );
}
}
buffer -= pExt->inputBufferUsedLength;
buffer_size -= pExt->inputBufferUsedLength;
}
