| 1 | /******************************************************************** |
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| 2 | * * |
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| 3 | * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * |
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| 4 | * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
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| 5 | * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
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| 6 | * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
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| 7 | * * |
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| 8 | * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 * |
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| 9 | * by the Xiph.Org Foundation http://www.xiph.org/ * |
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| 10 | * * |
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| 11 | ******************************************************************** |
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| 12 | |
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| 13 | function: vorbis encode-engine setup |
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| 14 | last mod: $Id: vorbisenc.h 13293 2007-07-24 00:09:47Z xiphmont $ |
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| 15 | |
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| 16 | ********************************************************************/ |
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| 17 | |
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| 18 | #ifndef _OV_ENC_H_ |
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| 19 | #define _OV_ENC_H_ |
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| 20 | |
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| 21 | #ifdef __cplusplus |
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| 22 | extern "C" |
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| 23 | { |
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| 24 | #endif /* __cplusplus */ |
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| 25 | |
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| 26 | #include "codec.h" |
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| 27 | |
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| 28 | extern int vorbis_encode_init(vorbis_info *vi, |
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| 29 | long channels, |
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| 30 | long rate, |
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| 31 | |
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| 32 | long max_bitrate, |
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| 33 | long nominal_bitrate, |
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| 34 | long min_bitrate); |
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| 35 | |
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| 36 | extern int vorbis_encode_setup_managed(vorbis_info *vi, |
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| 37 | long channels, |
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| 38 | long rate, |
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| 39 | |
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| 40 | long max_bitrate, |
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| 41 | long nominal_bitrate, |
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| 42 | long min_bitrate); |
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| 43 | |
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| 44 | extern int vorbis_encode_setup_vbr(vorbis_info *vi, |
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| 45 | long channels, |
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| 46 | long rate, |
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| 47 | |
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| 48 | float quality /* quality level from 0. (lo) to 1. (hi) */ |
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| 49 | ); |
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| 50 | |
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| 51 | extern int vorbis_encode_init_vbr(vorbis_info *vi, |
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| 52 | long channels, |
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| 53 | long rate, |
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| 54 | |
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| 55 | float base_quality /* quality level from 0. (lo) to 1. (hi) */ |
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| 56 | ); |
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| 57 | |
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| 58 | extern int vorbis_encode_setup_init(vorbis_info *vi); |
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| 59 | |
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| 60 | extern int vorbis_encode_ctl(vorbis_info *vi,int number,void *arg); |
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| 61 | |
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| 62 | /* deprecated rate management supported only for compatability */ |
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| 63 | #define OV_ECTL_RATEMANAGE_GET 0x10 |
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| 64 | #define OV_ECTL_RATEMANAGE_SET 0x11 |
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| 65 | #define OV_ECTL_RATEMANAGE_AVG 0x12 |
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| 66 | #define OV_ECTL_RATEMANAGE_HARD 0x13 |
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| 67 | |
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| 68 | struct ovectl_ratemanage_arg { |
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| 69 | int management_active; |
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| 70 | |
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| 71 | long bitrate_hard_min; |
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| 72 | long bitrate_hard_max; |
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| 73 | double bitrate_hard_window; |
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| 74 | |
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| 75 | long bitrate_av_lo; |
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| 76 | long bitrate_av_hi; |
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| 77 | double bitrate_av_window; |
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| 78 | double bitrate_av_window_center; |
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| 79 | }; |
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| 80 | |
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| 81 | |
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| 82 | /* new rate setup */ |
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| 83 | #define OV_ECTL_RATEMANAGE2_GET 0x14 |
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| 84 | #define OV_ECTL_RATEMANAGE2_SET 0x15 |
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| 85 | |
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| 86 | struct ovectl_ratemanage2_arg { |
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| 87 | int management_active; |
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| 88 | |
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| 89 | long bitrate_limit_min_kbps; |
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| 90 | long bitrate_limit_max_kbps; |
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| 91 | long bitrate_limit_reservoir_bits; |
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| 92 | double bitrate_limit_reservoir_bias; |
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| 93 | |
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| 94 | long bitrate_average_kbps; |
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| 95 | double bitrate_average_damping; |
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| 96 | }; |
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| 97 | |
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| 98 | |
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| 99 | |
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| 100 | #define OV_ECTL_LOWPASS_GET 0x20 |
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| 101 | #define OV_ECTL_LOWPASS_SET 0x21 |
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| 102 | |
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| 103 | #define OV_ECTL_IBLOCK_GET 0x30 |
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| 104 | #define OV_ECTL_IBLOCK_SET 0x31 |
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| 105 | |
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| 106 | #ifdef __cplusplus |
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| 107 | } |
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| 108 | #endif /* __cplusplus */ |
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| 109 | |
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| 110 | #endif |
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| 111 | |
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| 112 | |
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