You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
3.0 KiB
118 lines
3.0 KiB
/* Copyright (C) 2005 Ole André Vadla Ravnås <oleavr@gmail.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef MIMIC_PRIVATE_H
|
|
#define MIMIC_PRIVATE_H
|
|
|
|
#include "mimic.h"
|
|
|
|
#define ENCODER_BUFFER_SIZE 16384
|
|
#define ENCODER_QUALITY_DEFAULT 0
|
|
#define ENCODER_QUALITY_MIN 0
|
|
#define ENCODER_QUALITY_MAX 10000
|
|
|
|
struct _MimCtx {
|
|
gboolean encoder_initialized;
|
|
gboolean decoder_initialized;
|
|
|
|
gint frame_width;
|
|
gint frame_height;
|
|
gint quality;
|
|
gint num_coeffs;
|
|
|
|
gint y_stride;
|
|
gint y_row_count;
|
|
gint y_size;
|
|
|
|
gint crcb_stride;
|
|
gint crcb_row_count;
|
|
gint crcb_size;
|
|
|
|
gint num_vblocks_y;
|
|
gint num_hblocks_y;
|
|
|
|
gint num_vblocks_cbcr;
|
|
gint num_hblocks_cbcr;
|
|
|
|
guchar *cur_frame_buf;
|
|
guchar *prev_frame_buf;
|
|
|
|
gint8 vlcdec_lookup[2296];
|
|
|
|
gchar *data_buffer;
|
|
guint data_index;
|
|
|
|
guint32 cur_chunk;
|
|
gint cur_chunk_len;
|
|
|
|
guint32 *chunk_ptr;
|
|
gboolean read_odd;
|
|
|
|
gint frame_num;
|
|
|
|
gint ptr_index;
|
|
guchar *buf_ptrs[16];
|
|
};
|
|
|
|
typedef struct {
|
|
guchar length1;
|
|
guint32 part1;
|
|
|
|
guchar length2;
|
|
guint32 part2;
|
|
} VlcSymbol;
|
|
|
|
typedef struct {
|
|
guint32 magic;
|
|
guchar pos_add;
|
|
guchar num_bits;
|
|
} VlcMagic;
|
|
|
|
void _mimic_init(MimCtx *ctx, gint width, gint height);
|
|
guchar _clamp_value(gint value);
|
|
|
|
guint32 _read_bits(MimCtx *ctx, gint num_bits);
|
|
void _write_bits(MimCtx *ctx, guint32 bits, gint length);
|
|
|
|
void _vlc_encode_block(MimCtx *ctx, const gint *block, gint num_coeffs);
|
|
gboolean _vlc_decode_block(MimCtx *ctx, gint *block, gint num_coeffs);
|
|
|
|
void _fdct_quant_block(MimCtx *ctx, gint *block, const guchar *src,
|
|
gint stride, gboolean is_chrom, gint num_coeffs);
|
|
void _idct_dequant_block(MimCtx *ctx, gint *block, gboolean is_chrom);
|
|
|
|
VlcMagic *_find_magic(guint magic);
|
|
void _initialize_vlcdec_lookup(gint8 *lookup_tbl);
|
|
|
|
void _rgb_to_yuv(const guchar *input_rgb,
|
|
guchar *output_y,
|
|
guchar *output_cb,
|
|
guchar *output_cr,
|
|
gint width,
|
|
gint height);
|
|
void _yuv_to_rgb(const guchar *input_y,
|
|
const guchar *input_cb,
|
|
const guchar *input_cr,
|
|
guchar *output_rgb,
|
|
guint width,
|
|
guint height);
|
|
|
|
void _deblock(guchar *blocks, guint stride, guint row_count);
|
|
|
|
#endif
|
|
|