dbf-halloween2015
annotate libs/vorbis/bitrate.h @ 3:c37fe5d8a4ed
windows port
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Sun, 01 Nov 2015 06:04:28 +0200 |
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| children |
| rev | line source |
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| nuclear@1 | 1 /******************************************************************** |
| nuclear@1 | 2 * * |
| nuclear@1 | 3 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * |
| nuclear@1 | 4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
| nuclear@1 | 5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
| nuclear@1 | 6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
| nuclear@1 | 7 * * |
| nuclear@1 | 8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * |
| nuclear@1 | 9 * by the Xiph.Org Foundation http://www.xiph.org/ * |
| nuclear@1 | 10 * * |
| nuclear@1 | 11 ******************************************************************** |
| nuclear@1 | 12 |
| nuclear@1 | 13 function: bitrate tracking and management |
| nuclear@1 | 14 last mod: $Id: bitrate.h 13293 2007-07-24 00:09:47Z xiphmont $ |
| nuclear@1 | 15 |
| nuclear@1 | 16 ********************************************************************/ |
| nuclear@1 | 17 |
| nuclear@1 | 18 #ifndef _V_BITRATE_H_ |
| nuclear@1 | 19 #define _V_BITRATE_H_ |
| nuclear@1 | 20 |
| nuclear@1 | 21 #include "vorbis/codec.h" |
| nuclear@1 | 22 #include "codec_internal.h" |
| nuclear@1 | 23 #include "os.h" |
| nuclear@1 | 24 |
| nuclear@1 | 25 /* encode side bitrate tracking */ |
| nuclear@1 | 26 typedef struct bitrate_manager_state { |
| nuclear@1 | 27 int managed; |
| nuclear@1 | 28 |
| nuclear@1 | 29 long avg_reservoir; |
| nuclear@1 | 30 long minmax_reservoir; |
| nuclear@1 | 31 long avg_bitsper; |
| nuclear@1 | 32 long min_bitsper; |
| nuclear@1 | 33 long max_bitsper; |
| nuclear@1 | 34 |
| nuclear@1 | 35 long short_per_long; |
| nuclear@1 | 36 double avgfloat; |
| nuclear@1 | 37 |
| nuclear@1 | 38 vorbis_block *vb; |
| nuclear@1 | 39 int choice; |
| nuclear@1 | 40 } bitrate_manager_state; |
| nuclear@1 | 41 |
| nuclear@1 | 42 typedef struct bitrate_manager_info{ |
| nuclear@1 | 43 long avg_rate; |
| nuclear@1 | 44 long min_rate; |
| nuclear@1 | 45 long max_rate; |
| nuclear@1 | 46 long reservoir_bits; |
| nuclear@1 | 47 double reservoir_bias; |
| nuclear@1 | 48 |
| nuclear@1 | 49 double slew_damp; |
| nuclear@1 | 50 |
| nuclear@1 | 51 } bitrate_manager_info; |
| nuclear@1 | 52 |
| nuclear@1 | 53 extern void vorbis_bitrate_init(vorbis_info *vi,bitrate_manager_state *bs); |
| nuclear@1 | 54 extern void vorbis_bitrate_clear(bitrate_manager_state *bs); |
| nuclear@1 | 55 extern int vorbis_bitrate_managed(vorbis_block *vb); |
| nuclear@1 | 56 extern int vorbis_bitrate_addblock(vorbis_block *vb); |
| nuclear@1 | 57 extern int vorbis_bitrate_flushpacket(vorbis_dsp_state *vd, ogg_packet *op); |
| nuclear@1 | 58 |
| nuclear@1 | 59 #endif |