Mercurial > hg > sv-dependency-builds
annotate src/libvorbis-1.3.3/lib/bitrate.h @ 86:98c1576536ae
Bring in flac, ogg, vorbis
| author | Chris Cannam <cannam@all-day-breakfast.com> |
|---|---|
| date | Tue, 19 Mar 2013 17:37:49 +0000 |
| parents | |
| children |
| rev | line source |
|---|---|
| cannam@86 | 1 /******************************************************************** |
| cannam@86 | 2 * * |
| cannam@86 | 3 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * |
| cannam@86 | 4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
| cannam@86 | 5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
| cannam@86 | 6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
| cannam@86 | 7 * * |
| cannam@86 | 8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * |
| cannam@86 | 9 * by the Xiph.Org Foundation http://www.xiph.org/ * |
| cannam@86 | 10 * * |
| cannam@86 | 11 ******************************************************************** |
| cannam@86 | 12 |
| cannam@86 | 13 function: bitrate tracking and management |
| cannam@86 | 14 last mod: $Id: bitrate.h 13293 2007-07-24 00:09:47Z xiphmont $ |
| cannam@86 | 15 |
| cannam@86 | 16 ********************************************************************/ |
| cannam@86 | 17 |
| cannam@86 | 18 #ifndef _V_BITRATE_H_ |
| cannam@86 | 19 #define _V_BITRATE_H_ |
| cannam@86 | 20 |
| cannam@86 | 21 #include "vorbis/codec.h" |
| cannam@86 | 22 #include "codec_internal.h" |
| cannam@86 | 23 #include "os.h" |
| cannam@86 | 24 |
| cannam@86 | 25 /* encode side bitrate tracking */ |
| cannam@86 | 26 typedef struct bitrate_manager_state { |
| cannam@86 | 27 int managed; |
| cannam@86 | 28 |
| cannam@86 | 29 long avg_reservoir; |
| cannam@86 | 30 long minmax_reservoir; |
| cannam@86 | 31 long avg_bitsper; |
| cannam@86 | 32 long min_bitsper; |
| cannam@86 | 33 long max_bitsper; |
| cannam@86 | 34 |
| cannam@86 | 35 long short_per_long; |
| cannam@86 | 36 double avgfloat; |
| cannam@86 | 37 |
| cannam@86 | 38 vorbis_block *vb; |
| cannam@86 | 39 int choice; |
| cannam@86 | 40 } bitrate_manager_state; |
| cannam@86 | 41 |
| cannam@86 | 42 typedef struct bitrate_manager_info{ |
| cannam@86 | 43 long avg_rate; |
| cannam@86 | 44 long min_rate; |
| cannam@86 | 45 long max_rate; |
| cannam@86 | 46 long reservoir_bits; |
| cannam@86 | 47 double reservoir_bias; |
| cannam@86 | 48 |
| cannam@86 | 49 double slew_damp; |
| cannam@86 | 50 |
| cannam@86 | 51 } bitrate_manager_info; |
| cannam@86 | 52 |
| cannam@86 | 53 extern void vorbis_bitrate_init(vorbis_info *vi,bitrate_manager_state *bs); |
| cannam@86 | 54 extern void vorbis_bitrate_clear(bitrate_manager_state *bs); |
| cannam@86 | 55 extern int vorbis_bitrate_managed(vorbis_block *vb); |
| cannam@86 | 56 extern int vorbis_bitrate_addblock(vorbis_block *vb); |
| cannam@86 | 57 extern int vorbis_bitrate_flushpacket(vorbis_dsp_state *vd, ogg_packet *op); |
| cannam@86 | 58 |
| cannam@86 | 59 #endif |