4 * This file is part of Libav.
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/frame.h"
27 #include "libavutil/mem.h"
29 #include "bitstream.h"
42 typedef struct HQXLUT {
48 typedef struct HQXAC {
49 int lut_bits, extra_bits;
55 typedef int (*mb_decode_func)(struct HQXContext *ctx,
56 int slice_no, int x, int y);
58 typedef struct HQXSlice {
60 DECLARE_ALIGNED(16, int16_t, block)[16][64];
63 typedef struct HQXContext {
68 mb_decode_func decode_func;
70 int format, dcb, width, height;
74 unsigned int data_size;
75 uint32_t slice_off[17];
81 #define HQX_DC_VLC_BITS 9
83 extern const HQXAC ff_hqx_ac[NUM_HQX_AC];
85 int ff_hqx_init_vlcs(HQXContext *ctx);
87 #endif /* AVCODEC_HQX_H */