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Diffstat (limited to 'core/XvidVbr.h')
| -rw-r--r-- | core/XvidVbr.h | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/core/XvidVbr.h b/core/XvidVbr.h new file mode 100644 index 000000000..ea9d3b703 --- /dev/null +++ b/core/XvidVbr.h @@ -0,0 +1,231 @@ +/****************************************************************************** + * + * XviD VBR Library + * + * Copyright (C) 2002 Edouard Gomez <[email protected]> + * + * The curve treatment algorithm is based on work done by Foxer <email?> and + * Dirk Knop <[email protected]> for the XviD vfw dynamic library. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + *****************************************************************************/ + +#ifndef __XVID_VBR_H__ +#define __XVID_VBR_H__ + +#define VBR_VERSION 0 + +/****************************************************************************** + * Function types used in the vbr controler + *****************************************************************************/ + +typedef int (vbr_init_function)(void *state); +typedef vbr_init_function *vbr_init_function_ptr; + +typedef int (vbr_get_quant_function)(void *state); +typedef vbr_get_quant_function *vbr_get_quant_function_ptr; + +typedef int (vbr_get_intra_function)(void *state); +typedef vbr_get_intra_function *vbr_get_intra_function_ptr; + +typedef int (vbr_update_function)(void *state, + int quant, + int intra, + int header_bytes, + int total_bytes, + int kblocks, + int mblocks, + int ublocks); +typedef vbr_update_function *vbr_update_function_ptr; + +typedef int (vbr_finish_function)(void *state); +typedef vbr_finish_function *vbr_finish_function_ptr; + +/****************************************************************************** + * The VBR CONTROLER structure - the spin of the library + *****************************************************************************/ + +typedef struct _vbr_control_t +{ + + /* All modes - specifies what VBR algorithm has to be used */ + int mode; + + /* All modes - specifies what fps the movie uses */ + float fps; + + /* All modes */ + int debug; + + /* + * For VBR_MODE_2PASS_1/2 - specifies from/to what file the vbr + * controller has to write/read stats + */ + char *filename; + + /* For VBR_MODE_2PASS_2 - Target size */ + int desired_bitrate; + + /* For VBR_MODE_2PASS_2 - Credits parameters */ + int credits_mode; + int credits_start; + int credits_start_begin; + int credits_start_end; + int credits_end; + int credits_end_begin; + int credits_end_end; + int credits_quant_ratio; + int credits_fixed_quant; + int credits_quant_i; + int credits_quant_p; + int credits_start_size; + int credits_end_size; + + /* For VBR_MODE_2PASS_2 - keyframe parameters */ + int keyframe_boost; + int kftreshold; + int kfreduction; + int min_key_interval; + int max_key_interval; + + /* For VBR_MODE_2PASS_2 - Normal curve */ + int curve_compression_high; + int curve_compression_low; + + /* For VBR_MODE_2PASS_2 - Alternate curve parameters */ + int use_alt_curve; + int alt_curve_type; + int alt_curve_low_dist; + int alt_curve_high_dist; + int alt_curve_min_rel_qual; + int alt_curve_use_auto; + int alt_curve_auto_str; + int alt_curve_use_auto_bonus_bias; + int alt_curve_bonus_bias; + int bitrate_payback_method; + int bitrate_payback_delay; + int max_iquant; + int min_iquant; + int max_pquant; + int min_pquant; + int twopass_max_bitrate; + int twopass_max_overflow_improvement; + int twopass_max_overflow_degradation; + + /* + * For VBR_MODE_FIXED_QUANT - the quantizer that has to be used for all + * frames + */ + int fixed_quant; + + /* ----------- Internal data - Do not modify ----------- */ + void *debug_file; + void *pass1_file; + + long long desired_size; + + int cur_frame; + int nb_frames; + int nb_keyframes; + + int *keyframe_locations; + int last_keyframe; + + double credits_start_curve; + double credits_end_curve; + double movie_curve; + double average_frame; + double alt_curve_low; + double alt_curve_low_diff; + double alt_curve_high; + double alt_curve_high_diff; + double alt_curve_mid_qual; + double alt_curve_qual_dev; + double curve_bias_bonus; + double curve_comp_scale; + double curve_comp_error; + + int pass1_quant; + int pass1_intra; + int pass1_bytes; + + int bytes1; + int bytes2; + int desired_bytes2; + int max_framesize; + int last_quant; + int quant_count[32]; + double quant_error[32]; + + int overflow; + int KFoverflow; + int KFoverflow_partial; + int KF_idx; + + int debug_quant_count[32]; + + /* ----------- Internal data - do not modify ----------- */ + vbr_init_function_ptr init; + vbr_get_quant_function_ptr getquant; + vbr_get_intra_function_ptr getintra; + vbr_update_function_ptr update; + vbr_finish_function_ptr finish; + +}vbr_control_t; + +/****************************************************************************** + * Constants + *****************************************************************************/ + +/* Constants for the mode member */ +#define VBR_MODE_1PASS 0x01 +#define VBR_MODE_2PASS_1 0x02 +#define VBR_MODE_2PASS_2 0x04 +#define VBR_MODE_FIXED_QUANT 0x08 + +/* Constants for the credits mode */ +#define VBR_CREDITS_MODE_RATE 0x01 +#define VBR_CREDITS_MODE_QUANT 0x02 +#define VBR_CREDITS_MODE_SIZE 0x04 + +/* Alternate curve treatment types */ +#define VBR_ALT_CURVE_SOFT 0x01 +#define VBR_ALT_CURVE_LINEAR 0x02 +#define VBR_ALT_CURVE_AGGRESIVE 0x04 + +/* Payback modes */ +#define VBR_PAYBACK_BIAS 0x01 +#define VBR_PAYBACK_PROPORTIONAL 0x02 + +/****************************************************************************** + * VBR API + *****************************************************************************/ + +extern int vbrSetDefaults(vbr_control_t *state); +extern int vbrInit(vbr_control_t *state); +extern int vbrGetQuant(vbr_control_t *state); +extern int vbrGetIntra(vbr_control_t *state); +extern int vbrUpdate(vbr_control_t *state, + int quant, + int intra, + int header_bytes, + int total_bytes, + int kblocks, + int mblocks, + int ublocks); +extern int vbrFinish(vbr_control_t *state); + +#endif |