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112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2001 *
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* by the Xiph.Org Foundation http://www.xiph.org/ *
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* *
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********************************************************************
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function: vorbis encode-engine setup
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last mod: $Id: vorbisenc.h 13293 2007-07-24 00:09:47Z xiphmont $
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********************************************************************/
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#ifndef _OV_ENC_H_
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#define _OV_ENC_H_
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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#include "codec.h"
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extern int vorbis_encode_init(vorbis_info *vi,
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long channels,
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long rate,
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long max_bitrate,
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long nominal_bitrate,
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long min_bitrate);
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extern int vorbis_encode_setup_managed(vorbis_info *vi,
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long channels,
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long rate,
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long max_bitrate,
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long nominal_bitrate,
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long min_bitrate);
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extern int vorbis_encode_setup_vbr(vorbis_info *vi,
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long channels,
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long rate,
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float quality /* quality level from 0. (lo) to 1. (hi) */
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);
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extern int vorbis_encode_init_vbr(vorbis_info *vi,
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long channels,
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long rate,
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float base_quality /* quality level from 0. (lo) to 1. (hi) */
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);
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extern int vorbis_encode_setup_init(vorbis_info *vi);
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extern int vorbis_encode_ctl(vorbis_info *vi,int number,void *arg);
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/* deprecated rate management supported only for compatability */
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#define OV_ECTL_RATEMANAGE_GET 0x10
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#define OV_ECTL_RATEMANAGE_SET 0x11
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#define OV_ECTL_RATEMANAGE_AVG 0x12
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#define OV_ECTL_RATEMANAGE_HARD 0x13
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struct ovectl_ratemanage_arg {
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int management_active;
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long bitrate_hard_min;
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long bitrate_hard_max;
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double bitrate_hard_window;
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long bitrate_av_lo;
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long bitrate_av_hi;
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double bitrate_av_window;
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double bitrate_av_window_center;
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};
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/* new rate setup */
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#define OV_ECTL_RATEMANAGE2_GET 0x14
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#define OV_ECTL_RATEMANAGE2_SET 0x15
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struct ovectl_ratemanage2_arg {
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int management_active;
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long bitrate_limit_min_kbps;
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long bitrate_limit_max_kbps;
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long bitrate_limit_reservoir_bits;
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double bitrate_limit_reservoir_bias;
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long bitrate_average_kbps;
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double bitrate_average_damping;
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};
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#define OV_ECTL_LOWPASS_GET 0x20
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#define OV_ECTL_LOWPASS_SET 0x21
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#define OV_ECTL_IBLOCK_GET 0x30
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#define OV_ECTL_IBLOCK_SET 0x31
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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