Move Codec2-related code from hardware/google/av
Test: None
Bug: 112362730
Change-Id: Ie2f8ff431d65c40333f267ab9877d47089adeea4
diff --git a/media/codec2/components/aac/DrcPresModeWrap.cpp b/media/codec2/components/aac/DrcPresModeWrap.cpp
new file mode 100644
index 0000000..5b9aebc
--- /dev/null
+++ b/media/codec2/components/aac/DrcPresModeWrap.cpp
@@ -0,0 +1,372 @@
+/*
+ * Copyright (C) 2014 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 "DrcPresModeWrap.h"
+
+#include <assert.h>
+
+#define LOG_TAG "C2SoftAacDrcWrapper"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+//#define DRC_PRES_MODE_WRAP_DEBUG
+
+#define GPM_ENCODER_TARGET_LEVEL 64
+#define MAX_TARGET_LEVEL 40
+
+CDrcPresModeWrapper::CDrcPresModeWrapper()
+{
+ mDataUpdate = true;
+
+ /* Data from streamInfo. */
+ /* Initialized to the same values as in the aac decoder */
+ mStreamPRL = -1;
+ mStreamDRCPresMode = -1;
+ mStreamNrAACChan = 0;
+ mStreamNrOutChan = 0;
+
+ /* Desired values (set by user). */
+ /* Initialized to the same values as in the aac decoder */
+ mDesTarget = -1;
+ mDesAttFactor = 0;
+ mDesBoostFactor = 0;
+ mDesHeavy = 0;
+
+ mEncoderTarget = -1;
+
+ /* Values from last time. */
+ /* Initialized to the same values as the desired values */
+ mLastTarget = -1;
+ mLastAttFactor = 0;
+ mLastBoostFactor = 0;
+ mLastHeavy = 0;
+}
+
+CDrcPresModeWrapper::~CDrcPresModeWrapper()
+{
+}
+
+void
+CDrcPresModeWrapper::setDecoderHandle(const HANDLE_AACDECODER handle)
+{
+ mHandleDecoder = handle;
+}
+
+void
+CDrcPresModeWrapper::submitStreamData(CStreamInfo* pStreamInfo)
+{
+ assert(pStreamInfo);
+
+ if (mStreamPRL != pStreamInfo->drcProgRefLev) {
+ mStreamPRL = pStreamInfo->drcProgRefLev;
+ mDataUpdate = true;
+#ifdef DRC_PRES_MODE_WRAP_DEBUG
+ ALOGV("DRC presentation mode wrapper: drcProgRefLev is %d\n", mStreamPRL);
+#endif
+ }
+
+ if (mStreamDRCPresMode != pStreamInfo->drcPresMode) {
+ mStreamDRCPresMode = pStreamInfo->drcPresMode;
+ mDataUpdate = true;
+#ifdef DRC_PRES_MODE_WRAP_DEBUG
+ ALOGV("DRC presentation mode wrapper: drcPresMode is %d\n", mStreamDRCPresMode);
+#endif
+ }
+
+ if (mStreamNrAACChan != pStreamInfo->aacNumChannels) {
+ mStreamNrAACChan = pStreamInfo->aacNumChannels;
+ mDataUpdate = true;
+#ifdef DRC_PRES_MODE_WRAP_DEBUG
+ ALOGV("DRC presentation mode wrapper: aacNumChannels is %d\n", mStreamNrAACChan);
+#endif
+ }
+
+ if (mStreamNrOutChan != pStreamInfo->numChannels) {
+ mStreamNrOutChan = pStreamInfo->numChannels;
+ mDataUpdate = true;
+#ifdef DRC_PRES_MODE_WRAP_DEBUG
+ ALOGV("DRC presentation mode wrapper: numChannels is %d\n", mStreamNrOutChan);
+#endif
+ }
+
+
+
+ if (mStreamNrOutChan<mStreamNrAACChan) {
+ mIsDownmix = true;
+ } else {
+ mIsDownmix = false;
+ }
+
+ if (mIsDownmix && (mStreamNrOutChan == 1)) {
+ mIsMonoDownmix = true;
+ } else {
+ mIsMonoDownmix = false;
+ }
+
+ if (mIsDownmix && mStreamNrOutChan == 2){
+ mIsStereoDownmix = true;
+ } else {
+ mIsStereoDownmix = false;
+ }
+
+}
+
+void
+CDrcPresModeWrapper::setParam(const DRC_PRES_MODE_WRAP_PARAM param, const int value)
+{
+ switch (param) {
+ case DRC_PRES_MODE_WRAP_DESIRED_TARGET:
+ mDesTarget = value;
+ break;
+ case DRC_PRES_MODE_WRAP_DESIRED_ATT_FACTOR:
+ mDesAttFactor = value;
+ break;
+ case DRC_PRES_MODE_WRAP_DESIRED_BOOST_FACTOR:
+ mDesBoostFactor = value;
+ break;
+ case DRC_PRES_MODE_WRAP_DESIRED_HEAVY:
+ mDesHeavy = value;
+ break;
+ case DRC_PRES_MODE_WRAP_ENCODER_TARGET:
+ mEncoderTarget = value;
+ break;
+ default:
+ break;
+ }
+ mDataUpdate = true;
+}
+
+void
+CDrcPresModeWrapper::update()
+{
+ // Get Data from Decoder
+ int progRefLevel = mStreamPRL;
+ int drcPresMode = mStreamDRCPresMode;
+
+ // by default, do as desired
+ int newTarget = mDesTarget;
+ int newAttFactor = mDesAttFactor;
+ int newBoostFactor = mDesBoostFactor;
+ int newHeavy = mDesHeavy;
+
+ if (mDataUpdate) {
+ // sanity check
+ if (mDesTarget < MAX_TARGET_LEVEL){
+ mDesTarget = MAX_TARGET_LEVEL; // limit target level to -10 dB or below
+ newTarget = MAX_TARGET_LEVEL;
+ }
+
+ if (mEncoderTarget != -1) {
+ if (mDesTarget<124) { // if target level > -31 dB
+ if ((mIsStereoDownmix == false) && (mIsMonoDownmix == false)) {
+ // no stereo or mono downmixing, calculated scaling of light DRC
+ /* use as little compression as possible */
+ newAttFactor = 0;
+ newBoostFactor = 0;
+ if (mDesTarget<progRefLevel) { // if target level > PRL
+ if (mEncoderTarget < mDesTarget) { // if mEncoderTarget > target level
+ // mEncoderTarget > target level > PRL
+ int calcFactor;
+ float calcFactor_norm;
+ // 0.0f < calcFactor_norm < 1.0f
+ calcFactor_norm = (float)(mDesTarget - progRefLevel) /
+ (float)(mEncoderTarget - progRefLevel);
+ calcFactor = (int)(calcFactor_norm*127.0f); // 0 <= calcFactor < 127
+ // calcFactor is the lower limit
+ newAttFactor = (calcFactor>newAttFactor) ? calcFactor : newAttFactor;
+ // new AttFactor will be always = calcFactor, as it is set to 0 before.
+ newBoostFactor = newAttFactor;
+ } else {
+ /* target level > mEncoderTarget > PRL */
+ // newTDLimiterEnable = 1;
+ // the time domain limiter must always be active in this case.
+ // It is assumed that the framework activates it by default
+ newAttFactor = 127;
+ newBoostFactor = 127;
+ }
+ } else { // target level <= PRL
+ // no restrictions required
+ // newAttFactor = newAttFactor;
+ }
+ } else { // downmixing
+ // if target level > -23 dB or mono downmix
+ if ( (mDesTarget<92) || mIsMonoDownmix ) {
+ newHeavy = 1;
+ } else {
+ // we perform a downmix, so, we need at least full light DRC
+ newAttFactor = 127;
+ }
+ }
+ } else { // target level <= -31 dB
+ // playback -31 dB: light DRC only needed if we perform downmixing
+ if (mIsDownmix) { // we do downmixing
+ newAttFactor = 127;
+ }
+ }
+ }
+ else { // handle other used encoder target levels
+
+ // Sanity check: DRC presentation mode is only specified for max. 5.1 channels
+ if (mStreamNrAACChan > 6) {
+ drcPresMode = 0;
+ }
+
+ switch (drcPresMode) {
+ case 0:
+ default: // presentation mode not indicated
+ {
+
+ if (mDesTarget<124) { // if target level > -31 dB
+ // no stereo or mono downmixing
+ if ((mIsStereoDownmix == false) && (mIsMonoDownmix == false)) {
+ if (mDesTarget<progRefLevel) { // if target level > PRL
+ // newTDLimiterEnable = 1;
+ // the time domain limiter must always be active in this case.
+ // It is assumed that the framework activates it by default
+ newAttFactor = 127; // at least, use light compression
+ } else { // target level <= PRL
+ // no restrictions required
+ // newAttFactor = newAttFactor;
+ }
+ } else { // downmixing
+ // newTDLimiterEnable = 1;
+ // the time domain limiter must always be active in this case.
+ // It is assumed that the framework activates it by default
+
+ // if target level > -23 dB or mono downmix
+ if ( (mDesTarget < 92) || mIsMonoDownmix ) {
+ newHeavy = 1;
+ } else{
+ // we perform a downmix, so, we need at least full light DRC
+ newAttFactor = 127;
+ }
+ }
+ } else { // target level <= -31 dB
+ if (mIsDownmix) { // we do downmixing.
+ // newTDLimiterEnable = 1;
+ // the time domain limiter must always be active in this case.
+ // It is assumed that the framework activates it by default
+ newAttFactor = 127;
+ }
+ }
+ }
+ break;
+
+ // Presentation mode 1 and 2 according to ETSI TS 101 154:
+ // Digital Video Broadcasting (DVB); Specification for the use of Video and Audio Coding
+ // in Broadcasting Applications based on the MPEG-2 Transport Stream,
+ // section C.5.4., "Decoding", and Table C.33
+ // ISO DRC -> newHeavy = 0 (Use light compression, MPEG-style)
+ // Compression_value -> newHeavy = 1 (Use heavy compression, DVB-style)
+ // scaling restricted -> newAttFactor = 127
+
+ case 1: // presentation mode 1, Light:-31/Heavy:-23
+ {
+ if (mDesTarget < 124) { // if target level > -31 dB
+ // playback up to -23 dB
+ newHeavy = 1;
+ } else { // target level <= -31 dB
+ // playback -31 dB
+ if (mIsDownmix) { // we do downmixing.
+ newAttFactor = 127;
+ }
+ }
+ }
+ break;
+
+ case 2: // presentation mode 2, Light:-23/Heavy:-23
+ {
+ if (mDesTarget < 124) { // if target level > -31 dB
+ // playback up to -23 dB
+ if (mIsMonoDownmix) { // if mono downmix
+ newHeavy = 1;
+ } else {
+ newHeavy = 0;
+ newAttFactor = 127;
+ }
+ } else { // target level <= -31 dB
+ // playback -31 dB
+ newHeavy = 0;
+ if (mIsDownmix) { // we do downmixing.
+ newAttFactor = 127;
+ }
+ }
+ }
+ break;
+
+ } // switch()
+ } // if (mEncoderTarget == GPM_ENCODER_TARGET_LEVEL)
+
+ // sanity again
+ if (newHeavy == 1) {
+ newBoostFactor=127; // not really needed as the same would be done by the decoder anyway
+ newAttFactor = 127;
+ }
+
+ // update the decoder
+ if (newTarget != mLastTarget) {
+ aacDecoder_SetParam(mHandleDecoder, AAC_DRC_REFERENCE_LEVEL, newTarget);
+ mLastTarget = newTarget;
+#ifdef DRC_PRES_MODE_WRAP_DEBUG
+ if (newTarget != mDesTarget)
+ ALOGV("DRC presentation mode wrapper: forced target level to %d (from %d)\n", newTarget, mDesTarget);
+ else
+ ALOGV("DRC presentation mode wrapper: set target level to %d\n", newTarget);
+#endif
+ }
+
+ if (newAttFactor != mLastAttFactor) {
+ aacDecoder_SetParam(mHandleDecoder, AAC_DRC_ATTENUATION_FACTOR, newAttFactor);
+ mLastAttFactor = newAttFactor;
+#ifdef DRC_PRES_MODE_WRAP_DEBUG
+ if (newAttFactor != mDesAttFactor)
+ ALOGV("DRC presentation mode wrapper: forced attenuation factor to %d (from %d)\n", newAttFactor, mDesAttFactor);
+ else
+ ALOGV("DRC presentation mode wrapper: set attenuation factor to %d\n", newAttFactor);
+#endif
+ }
+
+ if (newBoostFactor != mLastBoostFactor) {
+ aacDecoder_SetParam(mHandleDecoder, AAC_DRC_BOOST_FACTOR, newBoostFactor);
+ mLastBoostFactor = newBoostFactor;
+#ifdef DRC_PRES_MODE_WRAP_DEBUG
+ if (newBoostFactor != mDesBoostFactor)
+ ALOGV("DRC presentation mode wrapper: forced boost factor to %d (from %d)\n",
+ newBoostFactor, mDesBoostFactor);
+ else
+ ALOGV("DRC presentation mode wrapper: set boost factor to %d\n", newBoostFactor);
+#endif
+ }
+
+ if (newHeavy != mLastHeavy) {
+ aacDecoder_SetParam(mHandleDecoder, AAC_DRC_HEAVY_COMPRESSION, newHeavy);
+ mLastHeavy = newHeavy;
+#ifdef DRC_PRES_MODE_WRAP_DEBUG
+ if (newHeavy != mDesHeavy)
+ ALOGV("DRC presentation mode wrapper: forced heavy compression to %d (from %d)\n",
+ newHeavy, mDesHeavy);
+ else
+ ALOGV("DRC presentation mode wrapper: set heavy compression to %d\n", newHeavy);
+#endif
+ }
+
+#ifdef DRC_PRES_MODE_WRAP_DEBUG
+ ALOGV("DRC config: tgt_lev: %3d, cut: %3d, boost: %3d, heavy: %d\n", newTarget,
+ newAttFactor, newBoostFactor, newHeavy);
+#endif
+ mDataUpdate = false;
+
+ } // if (mDataUpdate)
+}