celp_encoder.h
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上传日期:2007-02-02
资源大小:6116k
文件大小:8k
源码类别:
流媒体/Mpeg4/MP4
开发平台:
Visual C++
- /*====================================================================*/
- /* MPEG-4 Audio (ISO/IEC 14496-3) Copyright Header */
- /*====================================================================*/
- /*
- This software module was originally developed by Rakesh Taori and Andy
- Gerrits (Philips Research Laboratories, Eindhoven, The Netherlands) in
- the course of development of the MPEG-4 Audio (ISO/IEC 14496-3). This
- software module is an implementation of a part of one or more MPEG-4
- Audio (ISO/IEC 14496-3) tools as specified by the MPEG-4 Audio
- (ISO/IEC 14496-3). ISO/IEC gives users of the MPEG-4 Audio (ISO/IEC
- 14496-3) free license to this software module or modifications thereof
- for use in hardware or software products claiming conformance to the
- MPEG-4 Audio (ISO/IEC 14496-3). Those intending to use this software
- module in hardware or software products are advised that its use may
- infringe existing patents. The original developer of this software
- module and his/her company, the subsequent editors and their
- companies, and ISO/IEC have no liability for use of this software
- module or modifications thereof in an implementation. Copyright is not
- released for non MPEG-4 Audio (ISO/IEC 14496-3) conforming products.
- CN1 retains full right to use the code for his/her own purpose, assign
- or donate the code to a third party and to inhibit third parties from
- using the code for non MPEG-4 Audio (ISO/IEC 14496-3) conforming
- products. This copyright notice must be included in all copies or
- derivative works. Copyright 1996.
- */
- /*====================================================================*/
- /*======================================================================*/
- /* */
- /* SOURCE_FILE: PHI_COD.H */
- /* PACKAGE: WDBXX_1.0 */
- /* COMPONENT: Analysis-by-Synthesis CELP Framework (CODER) */
- /* */
- /*======================================================================*/
- #ifndef _phi_cod_h_
- #define _phi_cod_h_
- #ifdef __cplusplus
- extern "C" {
- #endif
- /**
- #include "lpc_common.h"
- **/
- /*======================================================================*/
- /* Function prototype: celp_coder */
- /*======================================================================*/
- void celp_coder
- (
- float **InputSignal, /* In: Multichannel Speech */
- BsBitStream *bitStream, /* Out: Bitstream */
- long sampling_frequency, /* In: Sampling Frequency */
- long bit_rate, /* In: Bit rate */
- long ExcitationMode, /* In: Excitation Mode */
- long SampleRateMode,
- long QuantizationMode, /* In: Type of Quantization */
- long FineRateControl, /* In: Fine Rate Control switch */
- long LosslessCodingMode, /* In: Lossless Coding Mode */
- long RPE_configuration, /* In: Wideband configuration */
- long Wideband_VQ, /* In: Wideband VQ mode */
- long MPE_Configuration, /* In: Narrowband configuration */
- long NumEnhLayers, /* In: Number of Enhancement Layers */
- long BandwidthScalabilityMode, /* In: bandwidth switch */
- long BWS_configuration, /* In: BWS_configuration */
- long PreProcessingSW, /* In: PreProcessingSW */
- long frame_size, /* In: Frame size */
- long n_subframes, /* In: Number of subframes */
- long sbfrm_size, /* In: Subframe size */
- long lpc_order, /* In: Order of LPc */
- long num_lpc_indices, /* In: Number of LPC indices */
- long num_shape_cbks, /* In: Number of Shape Codebooks */
- long num_gain_cbks, /* In: Number of Gain Codebooks */
- long n_lpc_analysis, /* In: Number of LPCs per frame */
- long window_offsets[], /* In: Offset for LPC-frame v.window*/
- long window_sizes[], /* In: LPC Analysis Window size */
- long max_n_lag_candidates, /* In: Maximum search candidates */
- float min_pitch_frequency, /* IN: Min Pitch Frequency */
- float max_pitch_frequency, /* IN: Max Pitch Frequency */
- long org_frame_bit_allocation[], /* In: Frame BIt alolocation */
- void *InstanceContext /* In/Out: instance context */
- );
- /*======================================================================*/
- /* Function Prototype:celp_initialisation_encoder */
- /*======================================================================*/
- void celp_initialisation_encoder
- (
- BsBitStream *hdrStream, /* Out: Bitstream */
- long bit_rate, /* In: bit rate */
- long sampling_frequency, /* In: sampling frequency */
- long ExcitationMode, /* In: Excitation Mode */
- long SampleRateMode, /* In: SampleRate Mode */
- long QuantizationMode, /* In: Type of Quantization */
- long FineRateControl, /* In: Fine Rate Control switch */
- long LosslessCodingMode, /* In: Lossless Coding Mode */
- long *RPE_configuration, /* In: RPE_configuration */
- long Wideband_VQ, /* Out: Wideband VQ mode */
- long *MPE_Configuration, /* Out: Multi-Pulse Exc. configuration */
- long NumEnhLayers, /* In: Number of Enhancement Layers for NB */
- long BandwidthScalabilityMode, /* In: bandwidth switch */
- long *BWS_Configuration, /* Out: BWS_configuration */
- long BWS_nb_bitrate, /* In: narrowband bitrate for BWS */
- long InputConfiguration, /* In: RPE/MPE Configuration for FRC */
- long *frame_size, /* Out: frame size */
- long *n_subframes, /* Out: number of subframes */
- long *sbfrm_size, /* Out: subframe size */
- long *lpc_order, /* Out: LP analysis order */
- long *num_lpc_indices, /* Out: number of LPC indices */
- long *num_shape_cbks, /* Out: number of Shape Codebooks */
- long *num_gain_cbks, /* Out: number of Gain Codebooks */
- long *n_lpc_analysis, /* Out: number of LP analysis per frame*/
- long **window_offsets, /* Out: window offset for each LP ana */
- long **window_sizes, /* Out: window size for each LP ana */
- long *n_lag_candidates, /* Out: number of pitch candidates */
- float *min_pitch_frequency, /* Out: minimum pitch frequency */
- float *max_pitch_frequency, /* Out: maximum pitch frequency */
- long **org_frame_bit_allocation, /* Out: bit num. for each index */
- void **InstanceContext, /* Out: handle to initialised instance context */
- int sysFlag /* In: system interface(flexmux) flag */
- );
- /*======================================================================*/
- /* Function Prototype: celp_close_encoder */
- /*======================================================================*/
- void celp_close_encoder
- (
- long ExcitationMode, /* In: Excitation Mode */
- long SampleRateMode,
- long BandwidthScalabilityMode,
- long sbfrm_size, /* In: subframe size */
- long frame_bit_allocation[], /* In: bit num. for each index */
- long window_offsets[], /* In: window offset for each LP ana */
- long window_sizes[], /* In: window size for each LP ana */
- long n_lpc_analysis, /* In: number of LP analysis/frame */
- void **InstanceContext /* In/Out: handle to instance context */
- );
- #ifdef __cplusplus
- }
- #endif
- #endif /* #ifndef _phi_cod_h_*/