phi_post.h
资源名称:NETVIDEO.rar [点击查看]
上传用户:sun1608
上传日期:2007-02-02
资源大小:6116k
文件大小:4k
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.
- */
- /*====================================================================*/
- /*======================================================================*/
- /* */
- /* INCLUDE_FILE: PHI_POST.H */
- /* PACKAGE: WDBxx */
- /* COMPONENT: Post-processing Module */
- /* */
- /*======================================================================*/
- #ifndef _phi_post_h_
- #define _phi_post_h_
- #include "phi_priv.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- /*======================================================================*/
- /* Function Prototype: PHI_InitPostProcessor */
- /*======================================================================*/
- void /* Return Value: Void */
- PHI_InitPostProcessor
- (
- const long lpc_order, /* In: Order of LPC */
- PHI_PRIV_TYPE *PHI_Priv /* In/Out: private data (instance context)*/
- );
- /*======================================================================*/
- /* Function Prototype: PHI_ClosePostProcessor */
- /*======================================================================*/
- void /* Return Value: Void */
- PHI_ClosePostProcessor
- (
- PHI_PRIV_TYPE *PHI_Priv /* In/Out: private data (instance context)*/
- );
- /*======================================================================*/
- /* Function Prototype: celp_postprocessing */
- /*======================================================================*/
- void /* Return Value: Void */
- celp_postprocessing
- (
- const float synth_signal[], /*In: Input sig [0..sbfrm_size -1]*/
- float PP_synth_signal[], /*Out: Postprocessed ooutput */
- const float int_Qlpc_coefficients[], /*In: Decoded LPC coefficients */
- const long lpc_order, /*In: Order of LPC */
- const long sbfrm_size, /*In: #Samps to be processed */
- const long acb_delay, /*In: Pitch-like information */
- const float adaptive_gain, /*In: DON'T KNOW WHY IT IS NEEDED */
- PHI_PRIV_TYPE *PHI_Priv /* In/Out: private data (instance context)*/
- );
- #ifdef __cplusplus
- }
- #endif
- #endif /* #ifndef _phi_post_h_ */
- /*======================================================================*/
- /* H I S T O R Y */
- /*======================================================================*/
- /* 08-08-96 R. Taori Initial Version */