aboutsummaryrefslogtreecommitdiffstats
path: root/fdk-aac/libAACdec/src/aacdec_drc.h
diff options
context:
space:
mode:
authorMatthias P. Braendli <matthias.braendli@mpb.li>2019-11-11 11:38:02 +0100
committerMatthias P. Braendli <matthias.braendli@mpb.li>2019-11-11 11:38:02 +0100
commit0e5af65c467b2423a0b857ae3ad98c91acc1e190 (patch)
treed07f69550d8886271e44fe79c4dcfb299cafbd38 /fdk-aac/libAACdec/src/aacdec_drc.h
parentefe406d9724f959c8bc2a31802559ca6d41fd897 (diff)
downloadODR-AudioEnc-0e5af65c467b2423a0b857ae3ad98c91acc1e190.tar.gz
ODR-AudioEnc-0e5af65c467b2423a0b857ae3ad98c91acc1e190.tar.bz2
ODR-AudioEnc-0e5af65c467b2423a0b857ae3ad98c91acc1e190.zip
Include patched FDK-AAC in the repository
The initial idea was to get the DAB+ patch into upstream, but since that follows the android source releases, there is no place for a custom DAB+ patch there. So instead of having to maintain a patched fdk-aac that has to have the same .so version as the distribution package on which it is installed, we prefer having a separate fdk-aac-dab library to avoid collision. At that point, there's no reason to keep fdk-aac in a separate repository, as odr-audioenc is the only tool that needs DAB+ encoding support. Including it here simplifies installation, and makes it consistent with toolame-dab, also shipped in this repository. DAB+ decoding support (needed by ODR-SourceCompanion, dablin, etisnoop, welle.io and others) can be done using upstream FDK-AAC.
Diffstat (limited to 'fdk-aac/libAACdec/src/aacdec_drc.h')
-rw-r--r--fdk-aac/libAACdec/src/aacdec_drc.h192
1 files changed, 192 insertions, 0 deletions
diff --git a/fdk-aac/libAACdec/src/aacdec_drc.h b/fdk-aac/libAACdec/src/aacdec_drc.h
new file mode 100644
index 0000000..924ec6f
--- /dev/null
+++ b/fdk-aac/libAACdec/src/aacdec_drc.h
@@ -0,0 +1,192 @@
+/* -----------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
+Forschung e.V. All rights reserved.
+
+ 1. INTRODUCTION
+The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
+that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
+scheme for digital audio. This FDK AAC Codec software is intended to be used on
+a wide variety of Android devices.
+
+AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
+general perceptual audio codecs. AAC-ELD is considered the best-performing
+full-bandwidth communications codec by independent studies and is widely
+deployed. AAC has been standardized by ISO and IEC as part of the MPEG
+specifications.
+
+Patent licenses for necessary patent claims for the FDK AAC Codec (including
+those of Fraunhofer) may be obtained through Via Licensing
+(www.vialicensing.com) or through the respective patent owners individually for
+the purpose of encoding or decoding bit streams in products that are compliant
+with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
+Android devices already license these patent claims through Via Licensing or
+directly from the patent owners, and therefore FDK AAC Codec software may
+already be covered under those patent licenses when it is used for those
+licensed purposes only.
+
+Commercially-licensed AAC software libraries, including floating-point versions
+with enhanced sound quality, are also available from Fraunhofer. Users are
+encouraged to check the Fraunhofer website for additional applications
+information and documentation.
+
+2. COPYRIGHT LICENSE
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted without payment of copyright license fees provided that you
+satisfy the following conditions:
+
+You must retain the complete text of this software license in redistributions of
+the FDK AAC Codec or your modifications thereto in source code form.
+
+You must retain the complete text of this software license in the documentation
+and/or other materials provided with redistributions of the FDK AAC Codec or
+your modifications thereto in binary form. You must make available free of
+charge copies of the complete source code of the FDK AAC Codec and your
+modifications thereto to recipients of copies in binary form.
+
+The name of Fraunhofer may not be used to endorse or promote products derived
+from this library without prior written permission.
+
+You may not charge copyright license fees for anyone to use, copy or distribute
+the FDK AAC Codec software or your modifications thereto.
+
+Your modified versions of the FDK AAC Codec must carry prominent notices stating
+that you changed the software and the date of any change. For modified versions
+of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
+must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
+AAC Codec Library for Android."
+
+3. NO PATENT LICENSE
+
+NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
+limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
+Fraunhofer provides no warranty of patent non-infringement with respect to this
+software.
+
+You may use this FDK AAC Codec software or modifications thereto only for
+purposes that are authorized by appropriate patent licenses.
+
+4. DISCLAIMER
+
+This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
+holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
+including but not limited to the implied warranties of merchantability and
+fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
+or consequential damages, including but not limited to procurement of substitute
+goods or services; loss of use, data, or profits, or business interruption,
+however caused and on any theory of liability, whether in contract, strict
+liability, or tort (including negligence), arising in any way out of the use of
+this software, even if advised of the possibility of such damage.
+
+5. CONTACT INFORMATION
+
+Fraunhofer Institute for Integrated Circuits IIS
+Attention: Audio and Multimedia Departments - FDK AAC LL
+Am Wolfsmantel 33
+91058 Erlangen, Germany
+
+www.iis.fraunhofer.de/amm
+amm-info@iis.fraunhofer.de
+----------------------------------------------------------------------------- */
+
+/**************************** AAC decoder library ******************************
+
+ Author(s): Christian Griebel
+
+ Description: Dynamic range control (DRC) decoder tool for AAC
+
+*******************************************************************************/
+
+#ifndef AACDEC_DRC_H
+#define AACDEC_DRC_H
+
+#include "tp_data.h" /* for program config element support */
+
+#include "aacdec_drc_types.h"
+#include "channel.h"
+#include "FDK_bitstream.h"
+
+#define AACDEC_DRC_DFLT_EXPIRY_FRAMES \
+ (0) /* Default DRC data expiry time in AAC frames */
+
+/* #define AACDEC_DRC_IGNORE_FRAMES_WITH_MULTIPLE_CH_THREADS */ /* The name says
+ it all. */
+/* #define AACDEC_DRC_DEBUG */
+
+/**
+ * \brief DRC module setting parameters
+ */
+typedef enum {
+ DRC_CUT_SCALE = 0,
+ DRC_BOOST_SCALE,
+ TARGET_REF_LEVEL,
+ DRC_BS_DELAY,
+ DRC_DATA_EXPIRY_FRAME,
+ APPLY_NORMALIZATION,
+ APPLY_HEAVY_COMPRESSION,
+ DEFAULT_PRESENTATION_MODE,
+ ENCODER_TARGET_LEVEL,
+ MAX_OUTPUT_CHANNELS,
+ UNIDRC_PRECEDENCE
+} AACDEC_DRC_PARAM;
+
+/**
+ * \brief DRC module interface functions
+ */
+void aacDecoder_drcInit(HANDLE_AAC_DRC self);
+
+void aacDecoder_drcInitChannelData(CDrcChannelData *pDrcChannel);
+
+AAC_DECODER_ERROR aacDecoder_drcSetParam(HANDLE_AAC_DRC self,
+ AACDEC_DRC_PARAM param, INT value);
+
+int aacDecoder_drcMarkPayload(HANDLE_AAC_DRC self, HANDLE_FDK_BITSTREAM hBs,
+ AACDEC_DRC_PAYLOAD_TYPE type);
+
+int aacDecoder_drcProlog(
+ HANDLE_AAC_DRC self, HANDLE_FDK_BITSTREAM hBs,
+ CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
+ UCHAR pceInstanceTag, UCHAR channelMapping[], int validChannels);
+
+/**
+ * \brief Apply DRC. If SBR is present, DRC data is handed over to the SBR
+ * decoder.
+ * \param self AAC decoder instance
+ * \param pSbrDec pointer to SBR decoder instance
+ * \param pAacDecoderChannelInfo AAC decoder channel instance to be processed
+ * \param pDrcDat DRC channel data
+ * \param extGain Pointer to a FIXP_DBL where a externally applyable gain will
+ * be stored into (independently on whether it will be apply internally or not).
+ * At function call the buffer must hold the scale (0 >= scale <
+ * DFRACT_BITS) to be applied on the gain value.
+ * \param ch channel index
+ * \param aacFrameSize AAC frame size
+ * \param bSbrPresent flag indicating that SBR is present, in which case DRC is
+ * handed over to the SBR instance pSbrDec
+ */
+void aacDecoder_drcApply(HANDLE_AAC_DRC self, void *pSbrDec,
+ CAacDecoderChannelInfo *pAacDecoderChannelInfo,
+ CDrcChannelData *pDrcDat, FIXP_DBL *extGain, int ch,
+ int aacFrameSize, int bSbrPresent);
+
+int aacDecoder_drcEpilog(
+ HANDLE_AAC_DRC self, HANDLE_FDK_BITSTREAM hBs,
+ CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo[],
+ UCHAR pceInstanceTag, UCHAR channelMapping[], int validChannels);
+
+/**
+ * \brief Get metadata information found in bitstream.
+ * \param self DRC module instance handle.
+ * \param pPresMode Pointer to field where the presentation mode will be written
+ * to.
+ * \param pProgRefLevel Pointer to field where the program reference level will
+ * be written to.
+ * \return Nothing.
+ */
+void aacDecoder_drcGetInfo(HANDLE_AAC_DRC self, SCHAR *pPresMode,
+ SCHAR *pProgRefLevel);
+
+#endif /* AACDEC_DRC_H */