status_t M2VDecoder::read(
MediaBuffer **out, const ReadOptions *options) {
*out = NULL;
//LOGI("M2VDecoder::read in");
int64_t seekTimeUs;
ReadOptions::SeekMode mode;
if (options && options->getSeekTo(&seekTimeUs, &mode)) {
ALOGV("seek requested to %lld us (%.2f secs)", seekTimeUs, seekTimeUs / 1E6);
CHECK(seekTimeUs >= 0);
mPendingSeekTimeUs = seekTimeUs;
mPendingSeekMode = mode;
if (mInputBuffer) {
mInputBuffer->release();
mInputBuffer = NULL;
}
sDecApi.reset_class_On2Decoder(pOn2Dec);
}
if (mInputBuffer == NULL) {
ALOGV("fetching new input buffer.");
bool seeking = false;
for (;;) {
if (mPendingSeekTimeUs >= 0) {
ALOGV("reading data from timestamp %lld (%.2f secs)",
mPendingSeekTimeUs, mPendingSeekTimeUs / 1E6);
}
ReadOptions seekOptions;
if (mPendingSeekTimeUs >= 0) {
seeking = true;
seekOptions.setSeekTo(mPendingSeekTimeUs, mPendingSeekMode);
mPendingSeekTimeUs = -1;
}
status_t err = mSource->read(&mInputBuffer, &seekOptions);
seekOptions.clearSeekTo();
if (err != OK) {
*out = NULL;
return (*out == NULL) ? err : (status_t)OK;
}
if (mInputBuffer->range_length() > 0) {
break;
}
mInputBuffer->release();
mInputBuffer = NULL;
}
if (seeking) {
int64_t targetTimeUs;
if (mInputBuffer->meta_data()->findInt64(kKeyTargetTime, &targetTimeUs)
&& targetTimeUs >= 0) {
mTargetTimeUs = targetTimeUs;
} else {
mTargetTimeUs = -1;
}
}
}
MediaBuffer *aOutBuf = new MediaBuffer(sizeof(VPU_FRAME));
uint8_t * aOutBuffer = (uint8_t *)aOutBuf->data();
uint32_t aOutputLength = 0;
uint8_t * pInput = (uint8_t *)mInputBuffer->data();
uint32_t aInBufSize = mInputBuffer->range_length();
//int64_t inputTime = 0LL;
//mInputBuffer->meta_data()->findInt64(kKeyTime, &inputTime);
int64_t outputTime = 0LL;
/*if(mNumFramesOutput == 0)
{
pInput += 16;
aInBufSize -= 16;
}*/
//LOGI("before decoder m2v inputlen %d",aInBufSize);
//LOGI("inpout data %c %c %c %c",pInput[0],pInput[1],pInput[2],pInput[3]);
memset(aOutBuffer,0,sizeof(VPU_FRAME));
if(sDecApi.dec_oneframe_class_On2Decoder(
pOn2Dec,
aOutBuffer,
(uint32_t*)&aOutputLength,
pInput,
&aInBufSize)){
sDecApi.get_oneframe_class_On2Decoder(pOn2Dec, aOutBuffer,(uint32_t*)&aOutputLength);
aOutBuf->releaseframe();
mInputBuffer->release();
mInputBuffer = NULL;
ALOGE("m2vdec failed");
return UNKNOWN_ERROR;
}
//LOGI("after decoder m2v aInBufSize %d aOutputLength %d ",aInBufSize,aOutputLength);
if(mInputBuffer)
{
mInputBuffer->release();
mInputBuffer = NULL;
}
if (mInputBuffer == NULL) {
for (;;)
{
status_t err = mSource->read(&mInputBuffer);
if (err != OK) {
*out = NULL;
return (*out == NULL) ? err : (status_t)OK;
}
if (mInputBuffer->range_length() > 0) {
break;
}
mInputBuffer->release();
mInputBuffer = NULL;
}
}
sDecApi.get_oneframe_class_On2Decoder(pOn2Dec, aOutBuffer,(uint32_t*)&aOutputLength);
if(aOutputLength)
mNumFramesOutput++;
VPU_FRAME *frame = (VPU_FRAME *)aOutBuffer;
outputTime = ((int64_t)(frame->ShowTime.TimeHigh) <<32) | ((int64_t)(frame->ShowTime.TimeLow));
outputTime *=1000;
aOutBuf->meta_data()->setInt64(kKeyTime,outputTime);
if(aOutputLength <= 0)
aOutBuf->set_range(0, 0);
*out = aOutBuf;
//LOGI("M2VDecoder::read out");
return OK;
}
