2012-07-11 19:15:24 +02:00
|
|
|
|
|
|
|
|
|
|
/* -----------------------------------------------------------------------------------------------------------
|
|
|
|
|
|
Software License for The Fraunhofer FDK AAC Codec Library for Android
|
|
|
|
|
|
|
2013-08-09 02:26:40 +02:00
|
|
|
|
<EFBFBD> Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur F<EFBFBD>rderung der angewandten Forschung e.V.
|
2012-07-11 19:15:24 +02:00
|
|
|
|
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
|
|
|
|
|
|
----------------------------------------------------------------------------------------------------------- */
|
|
|
|
|
|
|
|
|
|
|
|
/********************** Fraunhofer IIS FDK AAC Encoder lib ******************
|
|
|
|
|
|
|
|
|
|
|
|
Author(s): V. Bacigalupo
|
|
|
|
|
|
Description: Metadata Encoder library interface functions
|
|
|
|
|
|
|
|
|
|
|
|
******************************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
#ifndef _METADATA_MAIN_H
|
|
|
|
|
|
#define _METADATA_MAIN_H
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Includes ******************************************************************/
|
|
|
|
|
|
#include "aacenc_lib.h"
|
|
|
|
|
|
#include "aacenc.h"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* Defines *******************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
/* Data Types ****************************************************************/
|
|
|
|
|
|
|
|
|
|
|
|
typedef enum {
|
|
|
|
|
|
METADATA_OK = 0x0000, /*!< No error happened. All fine. */
|
|
|
|
|
|
METADATA_INVALID_HANDLE = 0x0020, /*!< Handle passed to function call was invalid. */
|
|
|
|
|
|
METADATA_MEMORY_ERROR = 0x0021, /*!< Memory allocation failed. */
|
|
|
|
|
|
METADATA_INIT_ERROR = 0x0040, /*!< General initialization error. */
|
|
|
|
|
|
METADATA_ENCODE_ERROR = 0x0060 /*!< The encoding process was interrupted by an unexpected error. */
|
|
|
|
|
|
|
|
|
|
|
|
} FDK_METADATA_ERROR;
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
* Meta Data handle.
|
|
|
|
|
|
*/
|
|
|
|
|
|
typedef struct FDK_METADATA_ENCODER *HANDLE_FDK_METADATA_ENCODER;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
* \brief Open a Meta Data instance.
|
|
|
|
|
|
*
|
|
|
|
|
|
* \param phMetadataEnc A pointer to a Meta Data handle to be allocated. Initialized on return.
|
|
|
|
|
|
*
|
|
|
|
|
|
* \return
|
|
|
|
|
|
* - METADATA_OK, on succes.
|
|
|
|
|
|
* - METADATA_INVALID_HANDLE, METADATA_MEMORY_ERROR, on failure.
|
|
|
|
|
|
*/
|
|
|
|
|
|
FDK_METADATA_ERROR FDK_MetadataEnc_Open(
|
|
|
|
|
|
HANDLE_FDK_METADATA_ENCODER *phMetadataEnc
|
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
* \brief Initialize a Meta Data instance.
|
|
|
|
|
|
*
|
|
|
|
|
|
* \param hMetadataEnc Meta Data handle.
|
|
|
|
|
|
* \param resetStates Indication for full reset of all states.
|
|
|
|
|
|
* \param metadataMode Configures metat data output format (0,1,2).
|
|
|
|
|
|
* \param audioDelay Delay cause by the audio encoder.
|
|
|
|
|
|
* \param frameLength Number of samples to be processes within one frame.
|
|
|
|
|
|
* \param sampleRate Sampling rat in Hz of audio input signal.
|
|
|
|
|
|
* \param nChannels Number of audio input channels.
|
|
|
|
|
|
* \param channelMode Channel configuration which is used by the encoder.
|
|
|
|
|
|
* \param channelOrder Channel order of the input data. (WAV, MPEG)
|
|
|
|
|
|
*
|
|
|
|
|
|
* \return
|
|
|
|
|
|
* - METADATA_OK, on succes.
|
|
|
|
|
|
* - METADATA_INVALID_HANDLE, METADATA_INIT_ERROR, on failure.
|
|
|
|
|
|
*/
|
|
|
|
|
|
FDK_METADATA_ERROR FDK_MetadataEnc_Init(
|
|
|
|
|
|
HANDLE_FDK_METADATA_ENCODER hMetadataEnc,
|
|
|
|
|
|
const INT resetStates,
|
|
|
|
|
|
const INT metadataMode,
|
|
|
|
|
|
const INT audioDelay,
|
|
|
|
|
|
const UINT frameLength,
|
|
|
|
|
|
const UINT sampleRate,
|
|
|
|
|
|
const UINT nChannels,
|
|
|
|
|
|
const CHANNEL_MODE channelMode,
|
|
|
|
|
|
const CHANNEL_ORDER channelOrder
|
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
* \brief Calculate Meta Data processing.
|
|
|
|
|
|
*
|
|
|
|
|
|
* This function treats all step necessary for meta data processing.
|
|
|
|
|
|
* - Receive new meta data and make usable.
|
|
|
|
|
|
* - Calculate DRC compressor and extract meta data info.
|
|
|
|
|
|
* - Make meta data available for extern use.
|
|
|
|
|
|
* - Apply audio data and meta data delay compensation.
|
|
|
|
|
|
*
|
|
|
|
|
|
* \param hMetadataEnc Meta Data handle.
|
|
|
|
|
|
* \param pAudioSamples Pointer to audio input data. Existing function overwrites audio data with delayed audio samples.
|
|
|
|
|
|
* \param nAudioSamples Number of input audio samples to be prcessed.
|
|
|
|
|
|
* \param pMetadata Pointer to Metat Data input.
|
|
|
|
|
|
* \param ppMetaDataExtPayload Pointer to extension payload array. Filled on return.
|
|
|
|
|
|
* \param nMetaDataExtensions Pointer to variable to describe number of available extension payloads. Filled on return.
|
|
|
|
|
|
* \param matrix_mixdown_idx Pointer to variable for matrix mixdown coefficient. Filled on return.
|
|
|
|
|
|
*
|
|
|
|
|
|
* \return
|
|
|
|
|
|
* - METADATA_OK, on succes.
|
|
|
|
|
|
* - METADATA_INVALID_HANDLE, METADATA_ENCODE_ERROR, on failure.
|
|
|
|
|
|
*/
|
|
|
|
|
|
FDK_METADATA_ERROR FDK_MetadataEnc_Process(
|
|
|
|
|
|
HANDLE_FDK_METADATA_ENCODER hMetadataEnc,
|
|
|
|
|
|
INT_PCM * const pAudioSamples,
|
|
|
|
|
|
const INT nAudioSamples,
|
|
|
|
|
|
const AACENC_MetaData * const pMetadata,
|
|
|
|
|
|
AACENC_EXT_PAYLOAD ** ppMetaDataExtPayload,
|
|
|
|
|
|
UINT * nMetaDataExtensions,
|
|
|
|
|
|
INT * matrix_mixdown_idx
|
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
* \brief Close the Meta Data instance.
|
|
|
|
|
|
*
|
|
|
|
|
|
* Deallocate instance and free whole memory.
|
|
|
|
|
|
*
|
|
|
|
|
|
* \param phMetaData Pointer to the Meta Data handle to be deallocated.
|
|
|
|
|
|
*
|
|
|
|
|
|
* \return
|
|
|
|
|
|
* - METADATA_OK, on succes.
|
|
|
|
|
|
* - METADATA_INVALID_HANDLE, on failure.
|
|
|
|
|
|
*/
|
|
|
|
|
|
FDK_METADATA_ERROR FDK_MetadataEnc_Close(
|
|
|
|
|
|
HANDLE_FDK_METADATA_ENCODER *phMetaData
|
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
|
* \brief Get Meta Data Encoder delay.
|
|
|
|
|
|
*
|
|
|
|
|
|
* \param hMetadataEnc Meta Data Encoder handle.
|
|
|
|
|
|
*
|
|
|
|
|
|
* \return Delay caused by Meta Data module.
|
|
|
|
|
|
*/
|
|
|
|
|
|
INT FDK_MetadataEnc_GetDelay(
|
|
|
|
|
|
HANDLE_FDK_METADATA_ENCODER hMetadataEnc
|
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
#endif /* _METADATA_MAIN_H */
|
|
|
|
|
|
|
