mirror of
https://github.com/id-Software/DOOM-3.git
synced 2026-03-20 17:10:42 +01:00
85 lines
2.7 KiB
C
85 lines
2.7 KiB
C
/********************************************************************
|
|
* *
|
|
* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
|
|
* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
|
|
* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
|
|
* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
|
|
* *
|
|
* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
|
|
* by the XIPHOPHORUS Company http://www.xiph.org/ *
|
|
* *
|
|
********************************************************************
|
|
|
|
function: bitrate tracking and management
|
|
last mod: $Id: bitrate.h,v 1.7 2002/07/11 06:40:48 xiphmont Exp $
|
|
|
|
********************************************************************/
|
|
|
|
#ifndef _V_BITRATE_H_
|
|
#define _V_BITRATE_H_
|
|
|
|
#include "../vorbis/codec.h"
|
|
#include "codec_internal.h"
|
|
#include "os.h"
|
|
|
|
/* encode side bitrate tracking */
|
|
typedef struct bitrate_manager_state {
|
|
ogg_uint32_t *queue_binned;
|
|
ogg_uint32_t *queue_actual;
|
|
int queue_size;
|
|
|
|
int queue_head;
|
|
int queue_bins;
|
|
|
|
long *avg_binacc;
|
|
int avg_center;
|
|
int avg_tail;
|
|
ogg_uint32_t avg_centeracc;
|
|
ogg_uint32_t avg_sampleacc;
|
|
ogg_uint32_t avg_sampledesired;
|
|
ogg_uint32_t avg_centerdesired;
|
|
|
|
long *minmax_binstack;
|
|
long *minmax_posstack;
|
|
long *minmax_limitstack;
|
|
long minmax_stackptr;
|
|
|
|
long minmax_acctotal;
|
|
int minmax_tail;
|
|
ogg_uint32_t minmax_sampleacc;
|
|
ogg_uint32_t minmax_sampledesired;
|
|
|
|
int next_to_flush;
|
|
int last_to_flush;
|
|
|
|
double avgfloat;
|
|
|
|
/* unfortunately, we need to hold queued packet data somewhere */
|
|
oggpack_buffer *packetbuffers;
|
|
ogg_packet *packets;
|
|
|
|
} bitrate_manager_state;
|
|
|
|
typedef struct bitrate_manager_info{
|
|
/* detailed bitrate management setup */
|
|
double queue_avg_time;
|
|
double queue_avg_center;
|
|
double queue_minmax_time;
|
|
double queue_hardmin;
|
|
double queue_hardmax;
|
|
double queue_avgmin;
|
|
double queue_avgmax;
|
|
|
|
double avgfloat_downslew_max;
|
|
double avgfloat_upslew_max;
|
|
|
|
} bitrate_manager_info;
|
|
|
|
extern void vorbis_bitrate_init(vorbis_info *vi,bitrate_manager_state *bs);
|
|
extern void vorbis_bitrate_clear(bitrate_manager_state *bs);
|
|
extern int vorbis_bitrate_managed(vorbis_block *vb);
|
|
extern int vorbis_bitrate_addblock(vorbis_block *vb);
|
|
extern int vorbis_bitrate_flushpacket(vorbis_dsp_state *vd, ogg_packet *op);
|
|
|
|
#endif
|