summaryrefslogtreecommitdiffstats
path: root/media/libstagefright/codecs/aacdec
diff options
context:
space:
mode:
authorAndreas Huber <andih@google.com>2011-07-13 12:38:46 -0700
committerAndreas Huber <andih@google.com>2011-07-13 14:14:08 -0700
commit87e031caf905145cb6e362a8c60f02736b87deef (patch)
tree409d1a2a489620450bb671353db86d995064d74c /media/libstagefright/codecs/aacdec
parent42e549e4ab54802d788c43e3a04a85b7a1a95e97 (diff)
downloadframeworks_av-87e031caf905145cb6e362a8c60f02736b87deef.zip
frameworks_av-87e031caf905145cb6e362a8c60f02736b87deef.tar.gz
frameworks_av-87e031caf905145cb6e362a8c60f02736b87deef.tar.bz2
Remove old-style software decoders.
Change-Id: Ie0729d6a65470ffdc38229791f25a75a22c724d8
Diffstat (limited to 'media/libstagefright/codecs/aacdec')
-rw-r--r--media/libstagefright/codecs/aacdec/AACDecoder.cpp335
-rw-r--r--media/libstagefright/codecs/aacdec/Android.mk1
2 files changed, 0 insertions, 336 deletions
diff --git a/media/libstagefright/codecs/aacdec/AACDecoder.cpp b/media/libstagefright/codecs/aacdec/AACDecoder.cpp
deleted file mode 100644
index d2e3eaa..0000000
--- a/media/libstagefright/codecs/aacdec/AACDecoder.cpp
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
- * Copyright (C) 2009 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 "AACDecoder.h"
-#define LOG_TAG "AACDecoder"
-
-#include "../../include/ESDS.h"
-
-#include "pvmp4audiodecoder_api.h"
-
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/MediaBufferGroup.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MetaData.h>
-
-namespace android {
-
-AACDecoder::AACDecoder(const sp<MediaSource> &source)
- : mSource(source),
- mStarted(false),
- mBufferGroup(NULL),
- mConfig(new tPVMP4AudioDecoderExternal),
- mDecoderBuf(NULL),
- mAnchorTimeUs(0),
- mNumSamplesOutput(0),
- mInputBuffer(NULL) {
-
- sp<MetaData> srcFormat = mSource->getFormat();
-
- int32_t sampleRate;
- CHECK(srcFormat->findInt32(kKeySampleRate, &sampleRate));
-
- mMeta = new MetaData;
- mMeta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW);
-
- // We'll always output stereo, regardless of how many channels are
- // present in the input due to decoder limitations.
- mMeta->setInt32(kKeyChannelCount, 2);
- mMeta->setInt32(kKeySampleRate, sampleRate);
-
- int64_t durationUs;
- if (srcFormat->findInt64(kKeyDuration, &durationUs)) {
- mMeta->setInt64(kKeyDuration, durationUs);
- }
- mMeta->setCString(kKeyDecoderComponent, "AACDecoder");
-
- mInitCheck = initCheck();
-}
-
-status_t AACDecoder::initCheck() {
- memset(mConfig, 0, sizeof(tPVMP4AudioDecoderExternal));
- mConfig->outputFormat = OUTPUTFORMAT_16PCM_INTERLEAVED;
- mConfig->aacPlusEnabled = 1;
-
- // The software decoder doesn't properly support mono output on
- // AACplus files. Always output stereo.
- mConfig->desiredChannels = 2;
-
- UInt32 memRequirements = PVMP4AudioDecoderGetMemRequirements();
- mDecoderBuf = malloc(memRequirements);
-
- status_t err = PVMP4AudioDecoderInitLibrary(mConfig, mDecoderBuf);
- if (err != MP4AUDEC_SUCCESS) {
- LOGE("Failed to initialize MP4 audio decoder");
- return UNKNOWN_ERROR;
- }
-
- uint32_t type;
- const void *data;
- size_t size;
- sp<MetaData> meta = mSource->getFormat();
- if (meta->findData(kKeyESDS, &type, &data, &size)) {
- ESDS esds((const char *)data, size);
- CHECK_EQ(esds.InitCheck(), (status_t)OK);
-
- const void *codec_specific_data;
- size_t codec_specific_data_size;
- esds.getCodecSpecificInfo(
- &codec_specific_data, &codec_specific_data_size);
-
- mConfig->pInputBuffer = (UChar *)codec_specific_data;
- mConfig->inputBufferCurrentLength = codec_specific_data_size;
- mConfig->inputBufferMaxLength = 0;
-
- if (PVMP4AudioDecoderConfig(mConfig, mDecoderBuf)
- != MP4AUDEC_SUCCESS) {
- return ERROR_UNSUPPORTED;
- }
- }
- return OK;
-}
-
-AACDecoder::~AACDecoder() {
- if (mStarted) {
- stop();
- }
-
- delete mConfig;
- mConfig = NULL;
-}
-
-status_t AACDecoder::start(MetaData *params) {
- CHECK(!mStarted);
-
- mBufferGroup = new MediaBufferGroup;
- mBufferGroup->add_buffer(new MediaBuffer(4096 * 2));
-
- mSource->start();
-
- mAnchorTimeUs = 0;
- mNumSamplesOutput = 0;
- mStarted = true;
- mNumDecodedBuffers = 0;
- mUpsamplingFactor = 2;
-
- return OK;
-}
-
-status_t AACDecoder::stop() {
- CHECK(mStarted);
-
- if (mInputBuffer) {
- mInputBuffer->release();
- mInputBuffer = NULL;
- }
-
- free(mDecoderBuf);
- mDecoderBuf = NULL;
-
- delete mBufferGroup;
- mBufferGroup = NULL;
-
- mSource->stop();
-
- mStarted = false;
-
- return OK;
-}
-
-sp<MetaData> AACDecoder::getFormat() {
- return mMeta;
-}
-
-status_t AACDecoder::read(
- MediaBuffer **out, const ReadOptions *options) {
- status_t err;
-
- *out = NULL;
-
- int64_t seekTimeUs;
- ReadOptions::SeekMode mode;
- if (options && options->getSeekTo(&seekTimeUs, &mode)) {
- CHECK(seekTimeUs >= 0);
-
- mNumSamplesOutput = 0;
-
- if (mInputBuffer) {
- mInputBuffer->release();
- mInputBuffer = NULL;
- }
-
- // Make sure that the next buffer output does not still
- // depend on fragments from the last one decoded.
- PVMP4AudioDecoderResetBuffer(mDecoderBuf);
- } else {
- seekTimeUs = -1;
- }
-
- if (mInputBuffer == NULL) {
- err = mSource->read(&mInputBuffer, options);
-
- if (err != OK) {
- return err;
- }
-
- int64_t timeUs;
- if (mInputBuffer->meta_data()->findInt64(kKeyTime, &timeUs)) {
- mAnchorTimeUs = timeUs;
- mNumSamplesOutput = 0;
- } else {
- // We must have a new timestamp after seeking.
- CHECK(seekTimeUs < 0);
- }
- }
-
- MediaBuffer *buffer;
- CHECK_EQ(mBufferGroup->acquire_buffer(&buffer), (status_t)OK);
-
- mConfig->pInputBuffer =
- (UChar *)mInputBuffer->data() + mInputBuffer->range_offset();
-
- mConfig->inputBufferCurrentLength = mInputBuffer->range_length();
- mConfig->inputBufferMaxLength = 0;
- mConfig->inputBufferUsedLength = 0;
- mConfig->remainderBits = 0;
-
- mConfig->pOutputBuffer = static_cast<Int16 *>(buffer->data());
- mConfig->pOutputBuffer_plus = &mConfig->pOutputBuffer[2048];
- mConfig->repositionFlag = false;
-
- Int decoderErr = PVMP4AudioDecodeFrame(mConfig, mDecoderBuf);
-
- /*
- * AAC+/eAAC+ streams can be signalled in two ways: either explicitly
- * or implicitly, according to MPEG4 spec. AAC+/eAAC+ is a dual
- * rate system and the sampling rate in the final output is actually
- * doubled compared with the core AAC decoder sampling rate.
- *
- * Explicit signalling is done by explicitly defining SBR audio object
- * type in the bitstream. Implicit signalling is done by embedding
- * SBR content in AAC extension payload specific to SBR, and hence
- * requires an AAC decoder to perform pre-checks on actual audio frames.
- *
- * Thus, we could not say for sure whether a stream is
- * AAC+/eAAC+ until the first data frame is decoded.
- */
- if (++mNumDecodedBuffers <= 2) {
- LOGV("audio/extended audio object type: %d + %d",
- mConfig->audioObjectType, mConfig->extendedAudioObjectType);
- LOGV("aac+ upsampling factor: %d desired channels: %d",
- mConfig->aacPlusUpsamplingFactor, mConfig->desiredChannels);
-
- CHECK(mNumDecodedBuffers > 0);
-
- if (decoderErr != MP4AUDEC_SUCCESS) {
- // If decoding fails this early, the fields in mConfig may
- // not be valid and we cannot recover.
-
- LOGE("Unable to decode aac content, decoder returned error %d",
- decoderErr);
-
- buffer->release();
- buffer = NULL;
-
- mInputBuffer->release();
- mInputBuffer = NULL;
-
- return ERROR_UNSUPPORTED;
- }
-
- if (mNumDecodedBuffers == 1) {
- mUpsamplingFactor = mConfig->aacPlusUpsamplingFactor;
- // Check on the sampling rate to see whether it is changed.
- int32_t sampleRate;
- CHECK(mMeta->findInt32(kKeySampleRate, &sampleRate));
- if (mConfig->samplingRate != sampleRate) {
- mMeta->setInt32(kKeySampleRate, mConfig->samplingRate);
- LOGW("Sample rate was %d Hz, but now is %d Hz",
- sampleRate, mConfig->samplingRate);
- buffer->release();
- mInputBuffer->release();
- mInputBuffer = NULL;
- return INFO_FORMAT_CHANGED;
- }
- } else { // mNumDecodedBuffers == 2
- if (mConfig->extendedAudioObjectType == MP4AUDIO_AAC_LC ||
- mConfig->extendedAudioObjectType == MP4AUDIO_LTP) {
- if (mUpsamplingFactor == 2) {
- // The stream turns out to be not aacPlus mode anyway
- LOGW("Disable AAC+/eAAC+ since extended audio object type is %d",
- mConfig->extendedAudioObjectType);
- mConfig->aacPlusEnabled = 0;
- }
- } else {
- if (mUpsamplingFactor == 1) {
- // aacPlus mode does not buy us anything, but to cause
- // 1. CPU load to increase, and
- // 2. a half speed of decoding
- LOGW("Disable AAC+/eAAC+ since upsampling factor is 1");
- mConfig->aacPlusEnabled = 0;
- }
- }
- }
- }
-
- size_t numOutBytes =
- mConfig->frameLength * sizeof(int16_t) * mConfig->desiredChannels;
- if (mUpsamplingFactor == 2) {
- if (mConfig->desiredChannels == 1) {
- memcpy(&mConfig->pOutputBuffer[1024], &mConfig->pOutputBuffer[2048], numOutBytes * 2);
- }
- numOutBytes *= 2;
- }
-
- if (decoderErr != MP4AUDEC_SUCCESS) {
- LOGW("AAC decoder returned error %d, substituting silence", decoderErr);
-
- memset(buffer->data(), 0, numOutBytes);
-
- // Discard input buffer.
- mInputBuffer->release();
- mInputBuffer = NULL;
-
- // fall through
- }
-
- buffer->set_range(0, numOutBytes);
-
- if (mInputBuffer != NULL) {
- mInputBuffer->set_range(
- mInputBuffer->range_offset() + mConfig->inputBufferUsedLength,
- mInputBuffer->range_length() - mConfig->inputBufferUsedLength);
-
- if (mInputBuffer->range_length() == 0) {
- mInputBuffer->release();
- mInputBuffer = NULL;
- }
- }
-
- buffer->meta_data()->setInt64(
- kKeyTime,
- mAnchorTimeUs
- + (mNumSamplesOutput * 1000000) / mConfig->samplingRate);
-
- mNumSamplesOutput += mConfig->frameLength * mUpsamplingFactor;
-
- *out = buffer;
-
- return OK;
-}
-
-} // namespace android
diff --git a/media/libstagefright/codecs/aacdec/Android.mk b/media/libstagefright/codecs/aacdec/Android.mk
index 359a2ec..20c7bc0 100644
--- a/media/libstagefright/codecs/aacdec/Android.mk
+++ b/media/libstagefright/codecs/aacdec/Android.mk
@@ -143,7 +143,6 @@ LOCAL_SRC_FILES := \
unpack_idx.cpp \
window_tables_fxp.cpp \
pvmp4setaudioconfig.cpp \
- AACDecoder.cpp \
LOCAL_CFLAGS := -DAAC_PLUS -DHQ_SBR -DPARAMETRICSTEREO -DOSCL_IMPORT_REF= -DOSCL_EXPORT_REF= -DOSCL_UNUSED_ARG=