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https://github.com/mpv-player/mpv
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e27d606714
for the system, names starting with _ are reserved at file level. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25635 b3059339-0415-0410-9bf9-f77b7e298cf2
232 lines
6.2 KiB
C
232 lines
6.2 KiB
C
/******************************************************************************
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*
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* XviD VBR Library
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*
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* Copyright (C) 2002 Edouard Gomez <ed.gomez@wanadoo.fr>
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*
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* The curve treatment algorithm is based on work done by Foxer <email?> and
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* Dirk Knop <dknop@gwdg.de> for the XviD vfw dynamic library.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#ifndef XVID_VBR_H
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#define XVID_VBR_H
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#define VBR_VERSION 0
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/******************************************************************************
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* Function types used in the vbr controler
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*****************************************************************************/
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typedef int (vbr_init_function)(void *state);
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typedef vbr_init_function *vbr_init_function_ptr;
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typedef int (vbr_get_quant_function)(void *state);
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typedef vbr_get_quant_function *vbr_get_quant_function_ptr;
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typedef int (vbr_get_intra_function)(void *state);
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typedef vbr_get_intra_function *vbr_get_intra_function_ptr;
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typedef int (vbr_update_function)(void *state,
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int quant,
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int intra,
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int header_bytes,
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int total_bytes,
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int kblocks,
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int mblocks,
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int ublocks);
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typedef vbr_update_function *vbr_update_function_ptr;
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typedef int (vbr_finish_function)(void *state);
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typedef vbr_finish_function *vbr_finish_function_ptr;
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/******************************************************************************
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* The VBR CONTROLER structure - the spin of the library
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*****************************************************************************/
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typedef struct vbr_control_t
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{
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/* All modes - specifies what VBR algorithm has to be used */
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int mode;
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/* All modes - specifies what fps the movie uses */
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float fps;
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/* All modes */
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int debug;
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/*
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* For VBR_MODE_2PASS_1/2 - specifies from/to what file the vbr
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* controller has to write/read stats
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*/
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char *filename;
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/* For VBR_MODE_2PASS_2 - Target size */
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int desired_bitrate;
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/* For VBR_MODE_2PASS_2 - Credits parameters */
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int credits_mode;
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int credits_start;
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int credits_start_begin;
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int credits_start_end;
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int credits_end;
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int credits_end_begin;
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int credits_end_end;
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int credits_quant_ratio;
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int credits_fixed_quant;
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int credits_quant_i;
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int credits_quant_p;
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int credits_start_size;
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int credits_end_size;
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/* For VBR_MODE_2PASS_2 - keyframe parameters */
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int keyframe_boost;
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int kftreshold;
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int kfreduction;
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int min_key_interval;
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int max_key_interval;
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/* For VBR_MODE_2PASS_2 - Normal curve */
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int curve_compression_high;
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int curve_compression_low;
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/* For VBR_MODE_2PASS_2 - Alternate curve parameters */
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int use_alt_curve;
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int alt_curve_type;
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int alt_curve_low_dist;
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int alt_curve_high_dist;
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int alt_curve_min_rel_qual;
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int alt_curve_use_auto;
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int alt_curve_auto_str;
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int alt_curve_use_auto_bonus_bias;
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int alt_curve_bonus_bias;
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int bitrate_payback_method;
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int bitrate_payback_delay;
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int max_iquant;
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int min_iquant;
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int max_pquant;
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int min_pquant;
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int twopass_max_bitrate;
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int twopass_max_overflow_improvement;
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int twopass_max_overflow_degradation;
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/*
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* For VBR_MODE_FIXED_QUANT - the quantizer that has to be used for all
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* frames
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*/
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int fixed_quant;
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/* ----------- Internal data - Do not modify ----------- */
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void *debug_file;
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void *pass1_file;
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long long desired_size;
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int cur_frame;
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int nb_frames;
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int nb_keyframes;
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int *keyframe_locations;
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int last_keyframe;
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double credits_start_curve;
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double credits_end_curve;
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double movie_curve;
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double average_frame;
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double alt_curve_low;
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double alt_curve_low_diff;
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double alt_curve_high;
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double alt_curve_high_diff;
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double alt_curve_mid_qual;
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double alt_curve_qual_dev;
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double curve_bias_bonus;
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double curve_comp_scale;
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double curve_comp_error;
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int pass1_quant;
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int pass1_intra;
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int pass1_bytes;
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int bytes1;
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int bytes2;
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int desired_bytes2;
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int max_framesize;
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int last_quant;
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int quant_count[32];
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double quant_error[32];
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int overflow;
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int KFoverflow;
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int KFoverflow_partial;
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int KF_idx;
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int debug_quant_count[32];
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/* ----------- Internal data - do not modify ----------- */
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vbr_init_function_ptr init;
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vbr_get_quant_function_ptr getquant;
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vbr_get_intra_function_ptr getintra;
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vbr_update_function_ptr update;
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vbr_finish_function_ptr finish;
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}vbr_control_t;
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/******************************************************************************
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* Constants
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*****************************************************************************/
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/* Constants for the mode member */
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#define VBR_MODE_1PASS 0x01
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#define VBR_MODE_2PASS_1 0x02
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#define VBR_MODE_2PASS_2 0x04
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#define VBR_MODE_FIXED_QUANT 0x08
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/* Constants for the credits mode */
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#define VBR_CREDITS_MODE_RATE 0x01
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#define VBR_CREDITS_MODE_QUANT 0x02
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#define VBR_CREDITS_MODE_SIZE 0x04
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/* Alternate curve treatment types */
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#define VBR_ALT_CURVE_SOFT 0x01
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#define VBR_ALT_CURVE_LINEAR 0x02
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#define VBR_ALT_CURVE_AGGRESIVE 0x04
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/* Payback modes */
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#define VBR_PAYBACK_BIAS 0x01
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#define VBR_PAYBACK_PROPORTIONAL 0x02
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/******************************************************************************
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* VBR API
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*****************************************************************************/
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extern int vbrSetDefaults(vbr_control_t *state);
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extern int vbrInit(vbr_control_t *state);
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extern int vbrGetQuant(vbr_control_t *state);
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extern int vbrGetIntra(vbr_control_t *state);
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extern int vbrUpdate(vbr_control_t *state,
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int quant,
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int intra,
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int header_bytes,
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int total_bytes,
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int kblocks,
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int mblocks,
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int ublocks);
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extern int vbrFinish(vbr_control_t *state);
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#endif /* XVID_VBR_H */
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