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-rw-r--r--src/libxinevdec/svq1.c1507
1 files changed, 0 insertions, 1507 deletions
diff --git a/src/libxinevdec/svq1.c b/src/libxinevdec/svq1.c
deleted file mode 100644
index 6c93eb1ab..000000000
--- a/src/libxinevdec/svq1.c
+++ /dev/null
@@ -1,1507 +0,0 @@
-/*
- * Copyright (C) 2002-2003 the xine project
- *
- * This file is part of xine, a unix video player.
- *
- * xine 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.
- *
- * xine 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
- *
- * $Id: svq1.c,v 1.32 2004/02/09 22:04:11 jstembridge Exp $
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "xine_internal.h"
-#include "video_out.h"
-#include "buffer.h"
-#include "bswap.h"
-#include "xineutils.h"
-
-#include "svq1_codebooks.h"
-
-#define VIDEOBUFSIZE 128 * 1024
-
-#define MEDIAN(a,b,c) ((a < b != b >= c) ? b : ((a < c != c > b) ? c : a))
-
-#define SVQ1_BLOCK_SKIP 0
-#define SVQ1_BLOCK_INTER 1
-#define SVQ1_BLOCK_INTER_4V 2
-#define SVQ1_BLOCK_INTRA 3
-
-#define SVQ1_FRAME_INTRA 0
-#define SVQ1_FRAME_INTER 1
-#define SVQ1_FRAME_DROPPABLE 2
-
-
-/* memory bit stream */
-typedef struct bit_buffer_s {
- uint8_t *buffer;
- unsigned int bitpos;
- unsigned int length;
-} bit_buffer_t;
-
-/* variable length (bit) code */
-typedef struct vlc_code_s {
- int16_t value :10,
- length :6;
-} vlc_code_t;
-
-/* motion vector (prediction) */
-typedef struct svq1_pmv_s {
- int x;
- int y;
-} svq1_pmv_t;
-
-typedef struct svq1_s {
- int frame_code;
- int frame_type;
- int frame_width;
- int frame_height;
- int luma_width;
- int luma_height;
- int chroma_width;
- int chroma_height;
- svq1_pmv_t *motion;
- uint8_t *current;
- uint8_t *previous;
- int offsets[3];
- int reference_frame;
-
- uint8_t *base[3];
- int width;
- int height;
- double ratio;
-} svq1_t;
-
-typedef struct {
- video_decoder_class_t decoder_class;
-} svq1_class_t;
-
-typedef struct svq1dec_decoder_s {
- video_decoder_t video_decoder;
-
- svq1_class_t *class;
- xine_stream_t *stream;
-
- int64_t video_step;
- int decoder_ok;
-
- unsigned char *buf;
- int bufsize;
- int size;
-
- svq1_t *svq1;
-} svq1dec_decoder_t;
-
-
-/* standard video sizes */
-static struct { int width; int height; } frame_size_table[8] = {
- { 160, 120 }, { 128, 96 }, { 176, 144 }, { 352, 288 },
- { 704, 576 }, { 240, 180 }, { 320, 240 }, { -1, -1 }
-};
-
-/* block type, codes 000 .. 1xx */
-static vlc_code_t block_type_table[8] = {
- { SVQ1_BLOCK_INTRA, 3 }, { SVQ1_BLOCK_INTER_4V, 3 },
- { SVQ1_BLOCK_INTER, 2 }, { SVQ1_BLOCK_INTER, 2 },
- { SVQ1_BLOCK_SKIP, 1 }, { SVQ1_BLOCK_SKIP, 1 },
- { SVQ1_BLOCK_SKIP, 1 }, { SVQ1_BLOCK_SKIP, 1 }
-};
-
-/* motion vector, codes 0000011 .. 011xxxx */
-static vlc_code_t motion_table_0[61] = {
- { 7, 8 }, { 6, 8 }, { 5, 8 }, { 4, 7 }, { 4, 7 },
- { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 },
- { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 },
- { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }
-};
-
-/* motion vector, codes 000000000010 ... 0000010111xx */
-static vlc_code_t motion_table_1[94] = {
- {32, 13}, {31, 13}, {30, 12}, {30, 12}, {29, 12}, {29, 12},
- {28, 12}, {28, 12}, {27, 12}, {27, 12}, {26, 12}, {26, 12}, {25, 12}, {25, 12},
- {24, 11}, {24, 11}, {24, 11}, {24, 11}, {23, 11}, {23, 11}, {23, 11}, {23, 11},
- {22, 11}, {22, 11}, {22, 11}, {22, 11}, {21, 11}, {21, 11}, {21, 11}, {21, 11},
- {20, 11}, {20, 11}, {20, 11}, {20, 11}, {19, 11}, {19, 11}, {19, 11}, {19, 11},
- {18, 11}, {18, 11}, {18, 11}, {18, 11}, {17, 11}, {17, 11}, {17, 11}, {17, 11},
- {16, 11}, {16, 11}, {16, 11}, {16, 11}, {15, 11}, {15, 11}, {15, 11}, {15, 11},
- {14, 11}, {14, 11}, {14, 11}, {14, 11}, {13, 11}, {13, 11}, {13, 11}, {13, 11},
- {12, 11}, {12, 11}, {12, 11}, {12, 11}, {11, 11}, {11, 11}, {11, 11}, {11, 11},
- {10, 10}, {10, 10}, {10, 10}, {10, 10}, {10, 10}, {10, 10}, {10, 10}, {10, 10},
- { 9, 10}, { 9, 10}, { 9, 10}, { 9, 10}, { 9, 10}, { 9, 10}, { 9, 10}, { 9, 10},
- { 8, 10}, { 8, 10}, { 8, 10}, { 8, 10}, { 8, 10}, { 8, 10}, { 8, 10}, { 8, 10},
-};
-
-/* inter-coded vector codebook count tables, codes 000000 ... 111111 */
-static vlc_code_t inter_vector_tables[6][64] = {
- /* 4x2 vector, codes 0000xxx ... 11xxxxx */
- { { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 },
- { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 },
- { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 },
- { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 },
- {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 },
- {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 } },
-
- /* 4x4 vector, codes 0000xxx ... 11xxxxx */
- { { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 },
- { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 },
- { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 },
- { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 },
- {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 },
- {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 }, {-1, 2 } },
-
- /* 8x4 vector, codes 00000xx ... 1xxxxxx */
- { { 6, 5 }, { 6, 5 }, { 5, 5 }, { 5, 5 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 },
- { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 } },
-
- /* 8x8 vector, codes 00000xx ... 1xxxxxx */
- { { 6, 5 }, { 6, 5 }, { 5, 5 }, { 5, 5 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 },
- { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 } },
-
- /* 16x8 vector, codes 00000xx ... 1xxxxxx */
- { { 6, 5 }, { 6, 5 }, { 5, 5 }, { 5, 5 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 },
- { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 }, { 2, 4 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 }, { 0, 3 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 } },
-
- /* 16x16 vector, codes 000000x ... 1xxxxxx */
- { { 6, 6 }, { 5, 6 }, { 4, 5 }, { 4, 5 }, { 3, 5 }, { 3, 5 }, { 2, 5 }, { 2, 5 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 },
- { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 },
- {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 }, {-1, 1 } }
-};
-
-/* vector codebook count tables, codes 0000000 ... 1111111 */
-static vlc_code_t intra_vector_tables[6][128] = {
- /* 4x2 vector, codes 00000xx ... 1xxxxxx */
- { { 5, 5 }, { 5, 5 }, { 5, 5 }, { 5, 5 }, {-1, 5 }, {-1, 5 }, {-1, 5 }, {-1, 5 },
- { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 },
- { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 },
- { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 },
- { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 },
- { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } },
-
- /* 4x4 vector, codes 0000xxx ... 11xxxxx */
- { { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 },
- {-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 }, {-1, 4 },
- { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 },
- { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 },
- { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 },
- { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 },
- { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 },
- { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 }, { 3, 3 },
- { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 },
- { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 },
- { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 },
- { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 },
- { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 }, { 0, 2 } },
-
- /* 8x4 vector, codes 00000xx ... 1xxxxxx */
- { { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, {-1, 5 }, {-1, 5 }, {-1, 5 }, {-1, 5 },
- { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 },
- { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 }, { 5, 4 },
- { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 },
- { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 },
- { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 }, { 4, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } },
-
- /* 8x8 vector, codes 000000x ... 1xxxxxx */
- { { 2, 6 }, { 2, 6 }, {-1, 6 }, {-1, 6 }, { 5, 5 }, { 5, 5 }, { 5, 5 }, { 5, 5 },
- { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 }, { 6, 4 },
- { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 }, { 4, 4 },
- { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } },
-
- /* 16x8 vector, codes 000000x ... 1xxxxxx */
- { { 4, 6 }, { 4, 6 }, {-1, 6 }, {-1, 6 }, { 5, 5 }, { 5, 5 }, { 5, 5 }, { 5, 5 },
- { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 },
- { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 },
- { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 }, { 6, 3 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } },
-
- /* 16x16 vector, codes 0000000 ... 1xxxxxx */
- { { 5, 7 }, {-1, 7 }, { 4, 6 }, { 4, 6 }, { 6, 5 }, { 6, 5 }, { 6, 5 }, { 6, 5 },
- { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 }, { 3, 4 },
- { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 },
- { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 }, { 2, 3 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 }, { 1, 2 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 } }
-};
-
-/* intra mean value, codes 00100101 ... 1111xxxx */
-static vlc_code_t intra_mean_table_0[219] = {
- {135, 8 }, {136, 8 }, {165, 8 },
- {134, 8 }, {129, 8 }, {164, 8 }, {163, 8 }, {133, 8 }, {162, 8 }, {174, 8 }, {175, 8 },
- {161, 8 }, {160, 8 }, {159, 8 }, {158, 8 }, {157, 8 }, {156, 8 }, {155, 8 }, {154, 8 },
- {153, 8 }, {151, 8 }, {152, 8 }, {132, 8 }, {110, 8 }, {131, 8 }, {108, 8 }, {130, 8 },
- {166, 8 }, {105, 8 }, {104, 8 }, {103, 8 }, {127, 8 }, {101, 8 }, {167, 8 }, {168, 8 },
- { 98, 8 }, {128, 8 }, { 48, 8 }, { 95, 8 }, { 62, 8 }, { 93, 8 }, { 92, 8 }, { 91, 8 },
- { 90, 8 }, { 89, 8 }, { 60, 8 }, { 87, 8 }, { 86, 8 }, { 57, 8 }, { 84, 8 }, { 83, 8 },
- { 82, 8 }, { 81, 8 }, { 80, 8 }, { 79, 8 }, { 78, 8 }, { 77, 8 }, { 76, 8 }, { 75, 8 },
- { 74, 8 }, { 73, 8 }, { 72, 8 }, { 71, 8 }, { 70, 8 }, { 69, 8 }, { 68, 8 }, { 67, 8 },
- { 66, 8 }, { 65, 8 }, { 56, 8 }, { 63, 8 }, { 23, 8 }, { 61, 8 }, { 30, 8 }, { 59, 8 },
- { 58, 8 }, { 52, 8 }, { 29, 8 }, { 55, 8 }, { 54, 8 }, { 53, 8 }, { 50, 8 }, { 51, 8 },
- { 22, 8 }, { 49, 8 }, { 85, 7 }, { 85, 7 }, { 97, 7 }, { 97, 7 }, { 88, 7 }, { 88, 7 },
- { 64, 7 }, { 64, 7 }, { 94, 7 }, { 94, 7 }, {106, 7 }, {106, 7 }, {107, 7 }, {107, 7 },
- {109, 7 }, {109, 7 }, {111, 7 }, {111, 7 }, {112, 7 }, {112, 7 }, {113, 7 }, {113, 7 },
- {114, 7 }, {114, 7 }, {115, 7 }, {115, 7 }, {116, 7 }, {116, 7 }, {117, 7 }, {117, 7 },
- {118, 7 }, {118, 7 }, {119, 7 }, {119, 7 }, {120, 7 }, {120, 7 }, { 99, 7 }, { 99, 7 },
- {102, 7 }, {102, 7 }, { 28, 7 }, { 28, 7 }, {100, 7 }, {100, 7 }, { 96, 7 }, { 96, 7 },
- {139, 7 }, {139, 7 }, { 24, 7 }, { 24, 7 }, { 1, 7 }, { 1, 7 }, {138, 7 }, {138, 7 },
- {121, 7 }, {121, 7 }, {122, 7 }, {122, 7 }, {123, 7 }, {123, 7 }, {124, 7 }, {124, 7 },
- {125, 7 }, {125, 7 }, {126, 7 }, {126, 7 }, {137, 7 }, {137, 7 }, {140, 7 }, {140, 7 },
- {150, 7 }, {150, 7 }, {144, 7 }, {144, 7 }, {141, 7 }, {141, 7 }, {142, 7 }, {142, 7 },
- {143, 7 }, {143, 7 }, {145, 7 }, {145, 7 }, {147, 7 }, {147, 7 }, {146, 7 }, {146, 7 },
- { 27, 6 }, { 27, 6 }, { 27, 6 }, { 27, 6 }, {148, 6 }, {148, 6 }, {148, 6 }, {148, 6 },
- {149, 6 }, {149, 6 }, {149, 6 }, {149, 6 }, { 0, 6 }, { 0, 6 }, { 0, 6 }, { 0, 6 },
- { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 },
- { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 }, { 26, 4 },
- { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 },
- { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }, { 25, 4 }
-};
-
-/* intra mean value, codes 0000001101 ... 001001001x */
-static vlc_code_t intra_mean_table_1[135] = {
- {218, 10}, {219, 10}, {220, 10},
- {221, 10}, {222, 10}, {217, 10}, {230, 10}, {215, 10}, {208, 10}, {207, 10}, {206, 10},
- {214, 10}, {204, 10}, {223, 10}, {224, 10}, {225, 10}, {226, 10}, {227, 10}, {228, 10},
- {229, 10}, {213, 10}, {212, 10}, {231, 10}, {232, 10}, {211, 10}, {210, 10}, {236, 10},
- {209, 10}, {216, 10}, {205, 10}, { 18, 10}, {186, 9 }, {186, 9 }, {185, 9 }, {185, 9 },
- {184, 9 }, {184, 9 }, {182, 9 }, {182, 9 }, {183, 9 }, {183, 9 }, {180, 9 }, {180, 9 },
- {181, 9 }, {181, 9 }, {178, 9 }, {178, 9 }, {187, 9 }, {187, 9 }, {176, 9 }, {176, 9 },
- {188, 9 }, {188, 9 }, {179, 9 }, {179, 9 }, {173, 9 }, {173, 9 }, {172, 9 }, {172, 9 },
- {171, 9 }, {171, 9 }, {170, 9 }, {170, 9 }, {169, 9 }, {169, 9 }, {189, 9 }, {189, 9 },
- {190, 9 }, {190, 9 }, {191, 9 }, {191, 9 }, {192, 9 }, {192, 9 }, {193, 9 }, {193, 9 },
- {194, 9 }, {194, 9 }, {195, 9 }, {195, 9 }, {196, 9 }, {196, 9 }, {197, 9 }, {197, 9 },
- {198, 9 }, {198, 9 }, {200, 9 }, {200, 9 }, {201, 9 }, {201, 9 }, {202, 9 }, {202, 9 },
- {203, 9 }, {203, 9 }, {199, 9 }, {199, 9 }, {177, 9 }, {177, 9 }, { 40, 9 }, { 40, 9 },
- { 39, 9 }, { 39, 9 }, { 38, 9 }, { 38, 9 }, { 37, 9 }, { 37, 9 }, { 36, 9 }, { 36, 9 },
- { 35, 9 }, { 35, 9 }, { 34, 9 }, { 34, 9 }, { 33, 9 }, { 33, 9 }, { 32, 9 }, { 32, 9 },
- { 31, 9 }, { 31, 9 }, { 21, 9 }, { 21, 9 }, { 11, 9 }, { 11, 9 }, { 41, 9 }, { 41, 9 },
- { 45, 9 }, { 45, 9 }, { 44, 9 }, { 44, 9 }, { 42, 9 }, { 42, 9 }, { 43, 9 }, { 43, 9 },
- { 47, 9 }, { 47, 9 }, { 46, 9 }, { 46, 9 }
-};
-
-/* intra mean value, codes 00000000000001 ... 00000011001xxx */
-static vlc_code_t intra_mean_table_2[207] = {
- {255, 14}, { 14, 14}, { 13, 14}, { 17, 12}, { 17, 12}, { 17, 12}, { 17, 12},
- {243, 11}, {243, 11}, {243, 11}, {243, 11}, {243, 11}, {243, 11}, {243, 11}, {243, 11},
- {242, 11}, {242, 11}, {242, 11}, {242, 11}, {242, 11}, {242, 11}, {242, 11}, {242, 11},
- {241, 11}, {241, 11}, {241, 11}, {241, 11}, {241, 11}, {241, 11}, {241, 11}, {241, 11},
- {240, 11}, {240, 11}, {240, 11}, {240, 11}, {240, 11}, {240, 11}, {240, 11}, {240, 11},
- {237, 11}, {237, 11}, {237, 11}, {237, 11}, {237, 11}, {237, 11}, {237, 11}, {237, 11},
- {239, 11}, {239, 11}, {239, 11}, {239, 11}, {239, 11}, {239, 11}, {239, 11}, {239, 11},
- {235, 11}, {235, 11}, {235, 11}, {235, 11}, {235, 11}, {235, 11}, {235, 11}, {235, 11},
- {234, 11}, {234, 11}, {234, 11}, {234, 11}, {234, 11}, {234, 11}, {234, 11}, {234, 11},
- {233, 11}, {233, 11}, {233, 11}, {233, 11}, {233, 11}, {233, 11}, {233, 11}, {233, 11},
- {244, 11}, {244, 11}, {244, 11}, {244, 11}, {244, 11}, {244, 11}, {244, 11}, {244, 11},
- {238, 11}, {238, 11}, {238, 11}, {238, 11}, {238, 11}, {238, 11}, {238, 11}, {238, 11},
- { 20, 11}, { 20, 11}, { 20, 11}, { 20, 11}, { 20, 11}, { 20, 11}, { 20, 11}, { 20, 11},
- {248, 11}, {248, 11}, {248, 11}, {248, 11}, {248, 11}, {248, 11}, {248, 11}, {248, 11},
- {249, 11}, {249, 11}, {249, 11}, {249, 11}, {249, 11}, {249, 11}, {249, 11}, {249, 11},
- {250, 11}, {250, 11}, {250, 11}, {250, 11}, {250, 11}, {250, 11}, {250, 11}, {250, 11},
- {251, 11}, {251, 11}, {251, 11}, {251, 11}, {251, 11}, {251, 11}, {251, 11}, {251, 11},
- {252, 11}, {252, 11}, {252, 11}, {252, 11}, {252, 11}, {252, 11}, {252, 11}, {252, 11},
- {253, 11}, {253, 11}, {253, 11}, {253, 11}, {253, 11}, {253, 11}, {253, 11}, {253, 11},
- {254, 11}, {254, 11}, {254, 11}, {254, 11}, {254, 11}, {254, 11}, {254, 11}, {254, 11},
- { 12, 11}, { 12, 11}, { 12, 11}, { 12, 11}, { 12, 11}, { 12, 11}, { 12, 11}, { 12, 11},
- { 10, 11}, { 10, 11}, { 10, 11}, { 10, 11}, { 10, 11}, { 10, 11}, { 10, 11}, { 10, 11},
- {245, 11}, {245, 11}, {245, 11}, {245, 11}, {245, 11}, {245, 11}, {245, 11}, {245, 11},
- {247, 11}, {247, 11}, {247, 11}, {247, 11}, {247, 11}, {247, 11}, {247, 11}, {247, 11},
- { 19, 11}, { 19, 11}, { 19, 11}, { 19, 11}, { 19, 11}, { 19, 11}, { 19, 11}, { 19, 11},
- {246, 11}, {246, 11}, {246, 11}, {246, 11}, {246, 11}, {246, 11}, {246, 11}, {246, 11}
-};
-
-/* intra mean value, codes 00000000000000000000 ... 000000000000001xxxxx */
-static vlc_code_t intra_mean_table_3[64] = {
- { 6, 20}, { 3, 20}, { 4, 20}, { 5, 20}, { 7, 20}, { 8, 20}, { 9, 19}, { 9, 19},
- { 2, 17}, { 2, 17}, { 2, 17}, { 2, 17}, { 2, 17}, { 2, 17}, { 2, 17}, { 2, 17},
- { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16},
- { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16}, { 16, 16},
- { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15},
- { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15},
- { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15},
- { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}, { 15, 15}
-};
-
-/* inter mean value, codes 00001011 ... 1xxxxxxx */
-static vlc_code_t inter_mean_table_0[245] = {
- { 10, 8 }, { 12, 8 }, { 11, 8 }, {-11, 8 }, {-12, 8 },
- {-10, 8 }, { -9, 8 }, { -7, 7 }, { -7, 7 }, { -6, 7 }, { -6, 7 }, { 8, 7 }, { 8, 7 },
- { -8, 7 }, { -8, 7 }, { 9, 7 }, { 9, 7 }, { 6, 7 }, { 6, 7 }, { 7, 7 }, { 7, 7 },
- { -5, 6 }, { -5, 6 }, { -5, 6 }, { -5, 6 }, { -4, 6 }, { -4, 6 }, { -4, 6 }, { -4, 6 },
- { 5, 6 }, { 5, 6 }, { 5, 6 }, { 5, 6 }, { 4, 6 }, { 4, 6 }, { 4, 6 }, { 4, 6 },
- { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 }, { 3, 5 },
- { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 }, { 2, 5 },
- { -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 }, { -2, 5 },
- { -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 }, { -3, 5 },
- { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 },
- { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 }, { -1, 4 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 }, { 1, 3 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 },
- { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }, { 0, 1 }
-};
-
-/* inter mean value, codes 000000010010 ... 00001011xxxx */
-static vlc_code_t inter_mean_table_1[158] = {
- {-30, 12}, {-31, 12}, {-32, 12}, {-33, 12}, { 31, 12}, {-34, 12},
- {-35, 12}, { 29, 12}, { 30, 12}, { 33, 12}, { 34, 12}, { 32, 12}, {-29, 11}, {-29, 11},
- {-28, 11}, {-28, 11}, { 28, 11}, { 28, 11}, {-27, 11}, {-27, 11}, {-26, 11}, {-26, 11},
- { 27, 11}, { 27, 11}, { 26, 11}, { 26, 11}, { 25, 11}, { 25, 11}, { 24, 11}, { 24, 11},
- { 23, 11}, { 23, 11}, { 22, 11}, { 22, 11}, {-24, 11}, {-24, 11}, {-25, 11}, {-25, 11},
- {-23, 10}, {-23, 10}, {-23, 10}, {-23, 10}, {-21, 10}, {-21, 10}, {-21, 10}, {-21, 10},
- {-20, 10}, {-20, 10}, {-20, 10}, {-20, 10}, {-19, 10}, {-19, 10}, {-19, 10}, {-19, 10},
- {-18, 10}, {-18, 10}, {-18, 10}, {-18, 10}, {-22, 10}, {-22, 10}, {-22, 10}, {-22, 10},
- { 19, 10}, { 19, 10}, { 19, 10}, { 19, 10}, { 21, 10}, { 21, 10}, { 21, 10}, { 21, 10},
- { 20, 10}, { 20, 10}, { 20, 10}, { 20, 10}, { 18, 10}, { 18, 10}, { 18, 10}, { 18, 10},
- {-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 }, {-14, 9 },
- {-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 }, {-17, 9 },
- { 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 }, { 16, 9 },
- { 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 }, { 13, 9 },
- { 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 }, { 14, 9 },
- { 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 }, { 15, 9 },
- { 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 }, { 17, 9 },
- {-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 }, {-13, 9 },
- {-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 }, {-16, 9 },
- {-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 }, {-15, 9 }
-};
-
-/* inter mean value, codes 000000000010111 ... 0000000100011xx */
-static vlc_code_t inter_mean_table_2[121] = {
- { 61, 15},
- { 52, 15}, { 58, 15}, {-56, 15}, {-57, 15}, { 59, 15}, {-55, 15}, { 60, 15}, {-54, 15},
- { 53, 15}, {-62, 15}, {-60, 15}, {-59, 15}, {-58, 15}, { 57, 15}, { 56, 15}, {-53, 15},
- { 55, 15}, { 54, 15}, { 50, 14}, { 50, 14}, { 45, 14}, { 45, 14}, {-52, 14}, {-52, 14},
- {-51, 14}, {-51, 14}, {-50, 14}, {-50, 14}, { 46, 14}, { 46, 14}, {-49, 14}, {-49, 14},
- {-48, 14}, {-48, 14}, { 48, 14}, { 48, 14}, {-47, 14}, {-47, 14}, { 49, 14}, { 49, 14},
- {-45, 14}, {-45, 14}, {-44, 14}, {-44, 14}, { 47, 14}, { 47, 14}, { 51, 14}, { 51, 14},
- { 44, 14}, { 44, 14}, {-46, 14}, {-46, 14}, {-43, 13}, {-43, 13}, {-43, 13}, {-43, 13},
- {-42, 13}, {-42, 13}, {-42, 13}, {-42, 13}, {-41, 13}, {-41, 13}, {-41, 13}, {-41, 13},
- {-40, 13}, {-40, 13}, {-40, 13}, {-40, 13}, {-39, 13}, {-39, 13}, {-39, 13}, {-39, 13},
- {-38, 13}, {-38, 13}, {-38, 13}, {-38, 13}, {-37, 13}, {-37, 13}, {-37, 13}, {-37, 13},
- {-36, 13}, {-36, 13}, {-36, 13}, {-36, 13}, { 42, 13}, { 42, 13}, { 42, 13}, { 42, 13},
- { 36, 13}, { 36, 13}, { 36, 13}, { 36, 13}, { 43, 13}, { 43, 13}, { 43, 13}, { 43, 13},
- { 41, 13}, { 41, 13}, { 41, 13}, { 41, 13}, { 40, 13}, { 40, 13}, { 40, 13}, { 40, 13},
- { 35, 13}, { 35, 13}, { 35, 13}, { 35, 13}, { 39, 13}, { 39, 13}, { 39, 13}, { 39, 13},
- { 38, 13}, { 38, 13}, { 38, 13}, { 38, 13}, { 37, 13}, { 37, 13}, { 37, 13}, { 37, 13}
-};
-
-/* inter mean value, codes 000000000000100101 ... 0000000000101101xx */
-static vlc_code_t inter_mean_table_3[147] = {
- {111, 18}, {102, 18}, { 99, 18},
- {-86, 18}, { 97, 18}, {-97, 18}, { 96, 18}, {-95, 18}, {-76, 18}, {-77, 18}, {-78, 18},
- {-85, 18}, {-80, 18}, {-81, 18}, { 89, 18}, { 90, 18}, {-84, 18}, {-89, 18}, { 80, 18},
- {-90, 18}, {-88, 18}, { 92, 18}, { 93, 18}, { 95, 18}, {-109,18}, {-79, 17}, {-79, 17},
- {-83, 17}, {-83, 17}, {-75, 17}, {-75, 17}, {-74, 17}, {-74, 17}, {-73, 17}, {-73, 17},
- {-72, 17}, {-72, 17}, { 87, 17}, { 87, 17}, { 86, 17}, { 86, 17}, { 75, 17}, { 75, 17},
- { 85, 17}, { 85, 17}, { 84, 17}, { 84, 17}, { 81, 17}, { 81, 17}, { 79, 17}, { 79, 17},
- { 74, 17}, { 74, 17}, { 72, 17}, { 72, 17}, { 82, 17}, { 82, 17}, { 78, 17}, { 78, 17},
- { 83, 17}, { 83, 17}, { 76, 17}, { 76, 17}, { 73, 17}, { 73, 17}, { 77, 17}, { 77, 17},
- { 70, 16}, { 70, 16}, { 70, 16}, { 70, 16}, { 69, 16}, { 69, 16}, { 69, 16}, { 69, 16},
- { 64, 16}, { 64, 16}, { 64, 16}, { 64, 16}, {-68, 16}, {-68, 16}, {-68, 16}, {-68, 16},
- {-66, 16}, {-66, 16}, {-66, 16}, {-66, 16}, { 68, 16}, { 68, 16}, { 68, 16}, { 68, 16},
- {-69, 16}, {-69, 16}, {-69, 16}, {-69, 16}, { 65, 16}, { 65, 16}, { 65, 16}, { 65, 16},
- { 71, 16}, { 71, 16}, { 71, 16}, { 71, 16}, {-70, 16}, {-70, 16}, {-70, 16}, {-70, 16},
- {-65, 16}, {-65, 16}, {-65, 16}, {-65, 16}, {-67, 16}, {-67, 16}, {-67, 16}, {-67, 16},
- {-63, 16}, {-63, 16}, {-63, 16}, {-63, 16}, {-71, 16}, {-71, 16}, {-71, 16}, {-71, 16},
- { 67, 16}, { 67, 16}, { 67, 16}, { 67, 16}, {-61, 16}, {-61, 16}, {-61, 16}, {-61, 16},
- {-64, 16}, {-64, 16}, {-64, 16}, {-64, 16}, { 63, 16}, { 63, 16}, { 63, 16}, { 63, 16},
- { 62, 16}, { 62, 16}, { 62, 16}, { 62, 16}, { 66, 16}, { 66, 16}, { 66, 16}, { 66, 16}
-};
-
-/* inter mean value, codes 00000000000001001001 ... 0000000000001001001x */
-static vlc_code_t inter_mean_table_4[75] = {
- {142, 20}, {135, 20}, {125, 20}, {123, 20}, {122, 20}, {119, 20}, {117, 20},
- {113, 20}, {104, 20}, {103, 20}, {-120,20}, {-114,20}, {-108,20}, {-104,20}, {-102,20},
- {-101,20}, {-93, 20}, {-91, 19}, {-91, 19}, {-96, 19}, {-96, 19}, { 88, 19}, { 88, 19},
- { 91, 19}, { 91, 19}, { 94, 19}, { 94, 19}, {121, 19}, {121, 19}, {120, 19}, {120, 19},
- {-110,19}, {-110,19}, {118, 19}, {118, 19}, {115, 19}, {115, 19}, {114, 19}, {114, 19},
- {112, 19}, {112, 19}, {107, 19}, {107, 19}, {110, 19}, {110, 19}, {109, 19}, {109, 19},
- {108, 19}, {108, 19}, {-103,19}, {-103,19}, {106, 19}, {106, 19}, {105, 19}, {105, 19},
- {-100,19}, {-100,19}, {101, 19}, {101, 19}, {100, 19}, {100, 19}, {-99, 19}, {-99, 19},
- {-82, 19}, {-82, 19}, {-87, 19}, {-87, 19}, {-94, 19}, {-94, 19}, {-98, 19}, {-98, 19},
- { 98, 19}, { 98, 19}, {-92, 19}, {-92, 19}
-};
-
-/* inter mean value, codes 0000000000000000000000 ... 000000000000010010001x */
-static vlc_code_t inter_mean_table_5[292] = {
- {255, 22}, {254, 22}, {253, 22}, {252, 22}, {251, 22}, {250, 22}, {249, 22}, {248, 22},
- {247, 22}, {246, 22}, {245, 22}, {244, 22}, {243, 22}, {242, 22}, {241, 22}, {240, 22},
- {239, 22}, {238, 22}, {237, 22}, {236, 22}, {235, 22}, {234, 22}, {233, 22}, {232, 22},
- {231, 22}, {230, 22}, {229, 22}, {228, 22}, {227, 22}, {226, 22}, {225, 22}, {224, 22},
- {223, 22}, {222, 22}, {221, 22}, {220, 22}, {219, 22}, {218, 22}, {217, 22}, {216, 22},
- {215, 22}, {214, 22}, {213, 22}, {212, 22}, {211, 22}, {210, 22}, {209, 22}, {208, 22},
- {207, 22}, {206, 22}, {205, 22}, {204, 22}, {203, 22}, {202, 22}, {201, 22}, {200, 22},
- {199, 22}, {198, 22}, {197, 22}, {196, 22}, {195, 22}, {194, 22}, {193, 22}, {192, 22},
- {191, 22}, {190, 22}, {189, 22}, {188, 22}, {187, 22}, {186, 22}, {185, 22}, {184, 22},
- {183, 22}, {182, 22}, {181, 22}, {180, 22}, {179, 22}, {178, 22}, {177, 22}, {176, 22},
- {175, 22}, {174, 22}, {173, 22}, {172, 22}, {171, 22}, {170, 22}, {169, 22}, {168, 22},
- {167, 22}, {166, 22}, {-256,22}, {164, 22}, {-211,22}, {162, 22}, {161, 22}, {160, 22},
- {-210,22}, {-168,22}, {157, 22}, {156, 22}, {155, 22}, {154, 22}, {153, 22}, {152, 22},
- {151, 22}, {150, 22}, {149, 22}, {148, 22}, {147, 22}, {146, 22}, {145, 22}, {144, 22},
- {143, 22}, {-208,22}, {141, 22}, {140, 22}, {139, 22}, {-200,22}, {137, 22}, {136, 22},
- {-198,22}, {134, 22}, {133, 22}, {-196,22}, {-201,22}, {130, 22}, {129, 22}, {128, 22},
- {127, 22}, {126, 22}, {-195,22}, {124, 22}, {-167,22}, {-166,22}, {-165,22}, {-164,22},
- {-163,22}, {-162,22}, {-161,22}, {-180,22}, {-160,22}, {-159,22}, {-158,22}, {-157,22},
- {-156,22}, {-155,22}, {-154,22}, {-153,22}, {-152,22}, {-151,22}, {-150,22}, {-149,22},
- {-148,22}, {-147,22}, {-146,22}, {-145,22}, {-144,22}, {-143,22}, {-142,22}, {-141,22},
- {-140,22}, {-139,22}, {-138,22}, {-137,22}, {-136,22}, {-135,22}, {-134,22}, {-133,22},
- {-132,22}, {-131,22}, {-130,22}, {-129,22}, {-126,22}, {-125,22}, {-124,22}, {-123,22},
- {-122,22}, {-121,22}, {-118,22}, {-116,22}, {-115,22}, {-113,22}, {-112,22}, {-107,22},
- {-106,22}, {-169,22}, {-170,22}, {-171,22}, {-172,22}, {-173,22}, {-174,22}, {-175,22},
- {-176,22}, {-177,22}, {-178,22}, {-187,22}, {-179,22}, {-181,22}, {-182,22}, {-183,22},
- {-184,22}, {-185,22}, {-186,22}, {-235,22}, {-188,22}, {-189,22}, {-190,22}, {-191,22},
- {-192,22}, {-193,22}, {-194,22}, {-197,22}, {-255,22}, {-254,22}, {-253,22}, {-252,22},
- {-251,22}, {-250,22}, {-249,22}, {-248,22}, {-247,22}, {-246,22}, {-245,22}, {-244,22},
- {-243,22}, {-242,22}, {-241,22}, {-240,22}, {-239,22}, {-238,22}, {-237,22}, {-232,22},
- {-236,22}, {-234,22}, {-233,22}, {-217,22}, {-231,22}, {-230,22}, {-229,22}, {-228,22},
- {-227,22}, {-226,22}, {-225,22}, {-224,22}, {-223,22}, {-222,22}, {-221,22}, {-220,22},
- {-219,22}, {-216,22}, {-202,22}, {-205,22}, {-215,22}, {-214,22}, {-213,22}, {-204,22},
- {-212,22}, {-209,22}, {-218,22}, {-199,22}, {-207,22}, {-206,22}, {165, 21}, {165, 21},
- {131, 21}, {131, 21}, {163, 21}, {163, 21}, {-203,21}, {-203,21}, {116, 21}, {116, 21},
- {159, 21}, {159, 21}, {138, 21}, {138, 21}, {158, 21}, {158, 21}, {-105,21}, {-105,21},
- {-111,21}, {-111,21}, {132, 21}, {132, 21}, {128, 21}, {128, 21}, {-127,21}, {-127,21},
- {-119,21}, {-119,21}, {-117,21}, {-117,21}
-};
-
-
-static uint32_t get_bits (bit_buffer_t *bitbuf, int count) {
- uint32_t result;
-
- /* avoid buffer overflow */
- if ((bitbuf->bitpos + 24) >= bitbuf->length) {
- int i;
-
- /* load upto 24 bits of data on sub-byte offset */
- result = 0;
-
- for (i=(bitbuf->bitpos & ~0x7); i < bitbuf->length; i+=8) {
- result |= bitbuf->buffer[i >> 3] << (24 + (bitbuf->bitpos - i));
- }
- } else {
- /* load 32 bits of data (byte-aligned) */
- result = BE_32 (&bitbuf->buffer[bitbuf->bitpos >> 3]);
-
- /* compensate for sub-byte offset */
- result <<= (bitbuf->bitpos & 0x7);
- }
-
- /* flush num bits */
- bitbuf->bitpos += count;
-
- /* return num bits */
- return result >> (32 - count);
-}
-
-/*
- * Return next 32 bits (left aligned).
- */
-static uint32_t get_bit_cache(bit_buffer_t *bitbuf) {
- uint32_t result;
-
- /* avoid buffer overflow */
- if ((bitbuf->bitpos + 24) >= bitbuf->length) {
- int i;
-
- /* load upto 24 bits of data on sub-byte offset */
- result = 0;
-
- for (i=(bitbuf->bitpos & ~0x7); i < bitbuf->length; i+=8) {
- result |= bitbuf->buffer[i >> 3] << (24 + (bitbuf->bitpos - i));
- }
- } else {
- /* load 32 bits of data (byte-aligned) */
- result = BE_32 (&bitbuf->buffer[bitbuf->bitpos >> 3]);
-
- /* compensate for sub-byte offset */
- result <<= (bitbuf->bitpos & 0x7);
- }
-
- return result;
-}
-
-static int decode_svq1_block (bit_buffer_t *bitbuf, uint8_t *pixels, int pitch, int intra) {
- uint32_t bit_cache;
- vlc_code_t *vlc;
- uint8_t *list[63];
- uint32_t *dst;
- uint32_t *codebook;
- int entries[6];
- int i, j, m, n;
- int mean, stages;
- int x, y, width, height, level;
- uint32_t n1, n2, n3, n4;
-
- /* initialize list for breadth first processing of vectors */
- list[0] = pixels;
-
- /* recursively process vector */
- for (i=0, m=1, n=1, level=5; i < n; i++) {
- for (; level > 0; i++) {
-
- /* process next depth */
- if (i == m) {
- m = n;
-
- if (--level == 0)
- break;
- }
-
- /* divide block if next bit set */
- if (get_bits (bitbuf, 1) == 0)
- break;
-
- /* add child nodes */
- list[n++] = list[i];
- list[n++] = list[i] + (((level & 1) ? pitch : 1) << ((level / 2) + 1));
- }
-
- /* destination address and vector size */
- dst = (uint32_t *) list[i];
- width = 1 << ((4 + level) /2);
- height = 1 << ((3 + level) /2);
-
- /* get number of stages (-1 skips vector, 0 for mean only) */
- bit_cache = get_bit_cache (bitbuf);
-
- if (intra)
- vlc = &intra_vector_tables[level][bit_cache >> (32 - 7)];
- else
- vlc = &inter_vector_tables[level][bit_cache >> (32 - 6)];
-
- /* flush bits */
- stages = vlc->value;
- bitbuf->bitpos += vlc->length;
-
- if (stages == -1) {
- if (intra) {
- for (y=0; y < height; y++) {
- memset (&dst[y*(pitch / 4)], 0, width);
- }
- }
- continue; /* skip vector */
- }
-
- if ((stages > 0) && (level >= 4)) {
- return -1; /* invalid vector */
- }
-
- /* get mean value for vector */
- bit_cache = get_bit_cache (bitbuf);
-
- if (intra) {
- if (bit_cache >= 0x25000000)
- vlc = &intra_mean_table_0[(bit_cache >> (32 - 8)) - 37];
- else if (bit_cache >= 0x03400000)
- vlc = &intra_mean_table_1[(bit_cache >> (32 - 10)) - 13];
- else if (bit_cache >= 0x00040000)
- vlc = &intra_mean_table_2[(bit_cache >> (32 - 14)) - 1];
- else
- vlc = &intra_mean_table_3[bit_cache >> (32 - 20)];
- } else {
- if (bit_cache >= 0x0B000000)
- vlc = &inter_mean_table_0[(bit_cache >> (32 - 8)) - 11];
- else if (bit_cache >= 0x01200000)
- vlc = &inter_mean_table_1[(bit_cache >> (32 - 12)) - 18];
- else if (bit_cache >= 0x002E0000)
- vlc = &inter_mean_table_2[(bit_cache >> (32 - 15)) - 23];
- else if (bit_cache >= 0x00094000)
- vlc = &inter_mean_table_3[(bit_cache >> (32 - 18)) - 37];
- else if (bit_cache >= 0x00049000)
- vlc = &inter_mean_table_4[(bit_cache >> (32 - 20)) - 73];
- else
- vlc = &inter_mean_table_5[bit_cache >> (32 - 22)];
- }
-
- /* flush bits */
- mean = vlc->value;
- bitbuf->bitpos += vlc->length;
-
- if (intra && stages == 0) {
- for (y=0; y < height; y++) {
- memset (&dst[y*(pitch / 4)], mean, width);
- }
- } else {
- codebook = (uint32_t *) (intra ? intra_codebooks[level] : inter_codebooks[level]);
- bit_cache = get_bits (bitbuf, 4*stages);
-
- /* calculate codebook entries for this vector */
- for (j=0; j < stages; j++) {
- entries[j] = (((bit_cache >> (4*(stages - j - 1))) & 0xF) + 16*j) << (level + 1);
- }
-
- mean -= (stages * 128);
- n4 = ((mean + (mean >> 31)) << 16) | (mean & 0xFFFF);
-
- for (y=0; y < height; y++) {
- for (x=0; x < (width / 4); x++, codebook++) {
- if (intra) {
- n1 = n4;
- n2 = n4;
- } else {
- n3 = dst[x];
-
- /* add mean value to vector */
- n1 = ((n3 & 0xFF00FF00) >> 8) + n4;
- n2 = (n3 & 0x00FF00FF) + n4;
- }
-
- /* add codebook entries to vector */
- for (j=0; j < stages; j++) {
- n3 = codebook[entries[j]] ^ 0x80808080;
- n1 += ((n3 & 0xFF00FF00) >> 8);
- n2 += (n3 & 0x00FF00FF);
- }
-
- /* clip to [0..255] */
- if (n1 & 0xFF00FF00) {
- n3 = ((( n1 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;
- n1 += 0x7F007F00;
- n1 |= (((~n1 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;
- n1 &= (n3 & 0x00FF00FF);
- }
-
- if (n2 & 0xFF00FF00) {
- n3 = ((( n2 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;
- n2 += 0x7F007F00;
- n2 |= (((~n2 >> 15) & 0x00010001) | 0x01000100) - 0x00010001;
- n2 &= (n3 & 0x00FF00FF);
- }
-
- /* store result */
- dst[x] = (n1 << 8) | n2;
- }
-
- dst += (pitch / 4);
- }
- }
- }
-
- return 0;
-}
-
-static int decode_motion_vector (bit_buffer_t *bitbuf, svq1_pmv_t *mv, svq1_pmv_t **pmv) {
- uint32_t bit_cache;
- vlc_code_t *vlc;
- int diff, sign;
- int i;
-
- for (i=0; i < 2; i++) {
-
- /* get motion code */
- bit_cache = get_bit_cache (bitbuf);
-
- if (!(bit_cache & 0xFFE00000))
- return -1; /* invalid vlc code */
-
- if (bit_cache & 0x80000000) {
- diff = 0;
-
- /* flush bit */
- bitbuf->bitpos++;
-
- } else {
- if (bit_cache >= 0x06000000) {
- vlc = &motion_table_0[(bit_cache >> (32 - 7)) - 3];
- } else {
- vlc = &motion_table_1[(bit_cache >> (32 - 12)) - 2];
- }
-
- /* decode motion vector differential */
- sign = (int) (bit_cache << (vlc->length - 1)) >> 31;
- diff = (vlc->value ^ sign) - sign;
-
- /* flush bits */
- bitbuf->bitpos += vlc->length;
- }
-
- /* add median of motion vector predictors and clip result */
- if (i == 1)
- mv->y = ((diff + MEDIAN(pmv[0]->y, pmv[1]->y, pmv[2]->y)) << 26) >> 26;
- else
- mv->x = ((diff + MEDIAN(pmv[0]->x, pmv[1]->x, pmv[2]->x)) << 26) >> 26;
- }
-
- return 0;
-}
-
-static void clip_motion_vector (int x, int y, int width, int height, svq1_pmv_t *mv) {
-
- if (mv->x < -2*x)
- mv->x = -2*x;
- else if (mv->x > 2*(width - x))
- mv->x = 2*(width - x);
-
- if (mv->y < -2*y)
- mv->y = -2*y;
- else if (mv->y > 2*(height - y))
- mv->y = 2*(height - y);
-}
-
-static void skip_block (uint8_t *current, uint8_t *previous, int pitch, int x, int y) {
- uint8_t *src;
- uint8_t *dst;
- int i;
-
- src = &previous[x + y*pitch];
- dst = current;
-
- for (i=0; i < 16; i++) {
- memcpy (dst, src, 16);
- src += pitch;
- dst += pitch;
- }
-}
-
-static int motion_inter_block (bit_buffer_t *bitbuf,
- uint8_t *current, uint8_t *previous, int pitch,
- svq1_pmv_t *motion,
- unsigned int x, unsigned int y,
- unsigned int width, unsigned int height) {
- uint8_t *src;
- uint8_t *dst;
- svq1_pmv_t mv;
- svq1_pmv_t *pmv[3];
- int sx, sy;
- int result;
-
- /* predict and decode motion vector */
- pmv[0] = &motion[0];
- pmv[1] = &motion[(x / 8) + 2];
- pmv[2] = &motion[(x / 8) + 4];
-
- if (y == 0) {
- pmv[1] = pmv[0];
- pmv[2] = pmv[0];
- }
-
- result = decode_motion_vector (bitbuf, &mv, pmv);
-
- if (result != 0)
- return result;
-
- motion[0].x = mv.x;
- motion[0].y = mv.y;
- motion[(x / 8) + 2].x = mv.x;
- motion[(x / 8) + 2].y = mv.y;
- motion[(x / 8) + 3].x = mv.x;
- motion[(x / 8) + 3].y = mv.y;
-
- /* clip motion vector to frame border */
- clip_motion_vector (x, y, (width - 16), (height - 16), &mv);
-
- src = &previous[(x + (mv.x >> 1)) + (y + (mv.y >> 1))*pitch];
- dst = current;
-
- /* form prediction */
- if (mv.y & 0x1) {
- if (mv.x & 0x1) {
- for (sy=0; sy < 16; sy++) {
- for (sx=0; sx < 16; sx++) {
- dst[sx] = (src[sx] + src[sx + 1] + src[sx + pitch] + src[sx + pitch + 1] + 2) >> 2;
- }
- src += pitch;
- dst += pitch;
- }
- } else {
- for (sy=0; sy < 16; sy++) {
- for (sx=0; sx < 16; sx++) {
- dst[sx] = (src[sx] + src[sx + pitch] + 1) >> 1;
- }
- src += pitch;
- dst += pitch;
- }
- }
- } else {
- if (mv.x & 0x1) {
- for (sy=0; sy < 16; sy++) {
- for (sx=0; sx < 16; sx++) {
- dst[sx] = (src[sx] + src[sx + 1] + 1) >> 1;
- }
- src += pitch;
- dst += pitch;
- }
- } else {
- for (sy=0; sy < 16; sy++) {
- memcpy (dst, src, 16);
- src += pitch;
- dst += pitch;
- }
- }
- }
-
- return 0;
-}
-
-static int motion_inter_4v_block (bit_buffer_t *bitbuf,
- uint8_t *current, uint8_t *previous, int pitch,
- svq1_pmv_t *motion,
- unsigned int x, unsigned int y,
- unsigned int width, unsigned int height) {
- uint8_t *src;
- uint8_t *dst;
- svq1_pmv_t mv;
- svq1_pmv_t *pmv[4];
- int sx, sy;
- int i, result;
-
- /* predict and decode motion vector (0) */
- pmv[0] = &motion[0];
- pmv[1] = &motion[(x / 8) + 2];
- pmv[2] = &motion[(x / 8) + 4];
-
- if (y == 0) {
- pmv[1] = pmv[0];
- pmv[2] = pmv[0];
- }
-
- result = decode_motion_vector (bitbuf, &mv, pmv);
-
- if (result != 0)
- return result;
-
- /* predict and decode motion vector (1) */
- pmv[0] = &mv;
- pmv[1] = &motion[(x / 8) + 3];
-
- if (y == 0) {
- pmv[1] = pmv[0];
- pmv[2] = pmv[0];
- }
-
- result = decode_motion_vector (bitbuf, &motion[0], pmv);
-
- if (result != 0)
- return result;
-
- /* predict and decode motion vector (2) */
- pmv[1] = &motion[0];
- pmv[2] = &motion[(x / 8) + 1];
-
- result = decode_motion_vector (bitbuf, &motion[(x / 8) + 2], pmv);
-
- if (result != 0)
- return result;
-
- /* predict and decode motion vector (3) */
- pmv[2] = &motion[(x / 8) + 2];
- pmv[3] = &motion[(x / 8) + 3];
-
- result = decode_motion_vector (bitbuf, pmv[3], pmv);
-
- if (result != 0)
- return result;
-
- /* clip motion vectors to frame border */
- clip_motion_vector (x, y, (width - 8), (height - 8), pmv[0]);
- clip_motion_vector ((x + 8), y, (width - 8), (height - 8), pmv[1]);
- clip_motion_vector (x, (y + 8), (width - 8), (height - 8), pmv[2]);
- clip_motion_vector ((x + 8), (y + 8), (width - 8), (height - 8), pmv[3]);
-
- /* form predictions */
- for (i=0; i < 4; i++) {
- src = &previous[(x + (pmv[i]->x >> 1)) + (y + (pmv[i]->y >> 1))*pitch];
- dst = current;
-
- if (pmv[i]->y & 0x1) {
- if (pmv[i]->x & 0x1) {
- for (sy=0; sy < 8; sy++) {
- for (sx=0; sx < 8; sx++) {
- dst[sx] = (src[sx] + src[sx + 1] + src[sx + pitch] + src[sx + pitch + 1] + 2) >> 2;
- }
- src += pitch;
- dst += pitch;
- }
- } else {
- for (sy=0; sy < 8; sy++) {
- for (sx=0; sx < 8; sx++) {
- dst[sx] = (src[sx] + src[sx + pitch] + 1) >> 1;
- }
- src += pitch;
- dst += pitch;
- }
- }
- } else {
- if (pmv[i]->x & 0x1) {
- for (sy=0; sy < 8; sy++) {
- for (sx=0; sx < 8; sx++) {
- dst[sx] = (src[sx] + src[sx + 1] + 1) >> 1;
- }
- src += pitch;
- dst += pitch;
- }
- } else {
- for (sy=0; sy < 8; sy++) {
- memcpy (dst, src, 8);
- src += pitch;
- dst += pitch;
- }
- }
- }
-
- /* select next block */
- if (i & 1) {
- current += 8*(pitch - 1);
- previous += 8*(pitch - 1);
- } else {
- current += 8;
- previous += 8;
- }
- }
-
- return 0;
-}
-
-static int decode_delta_block (bit_buffer_t *bitbuf,
- uint8_t *current, uint8_t *previous, int pitch,
- svq1_pmv_t *motion,
- unsigned int x, unsigned int y,
- unsigned int width, unsigned int height) {
- uint32_t bit_cache;
- uint32_t block_type;
- int result = 0;
-
- /* get block type */
- bit_cache = get_bit_cache (bitbuf);
-
- bit_cache >>= (32 - 3);
- block_type = block_type_table[bit_cache].value;
- bitbuf->bitpos += block_type_table[bit_cache].length;
-
- /* reset motion vectors */
- if (block_type == SVQ1_BLOCK_SKIP || block_type == SVQ1_BLOCK_INTRA) {
- motion[0].x = 0;
- motion[0].y = 0;
- motion[(x / 8) + 2].x = 0;
- motion[(x / 8) + 2].y = 0;
- motion[(x / 8) + 3].x = 0;
- motion[(x / 8) + 3].y = 0;
- }
-
- switch (block_type) {
- case SVQ1_BLOCK_SKIP:
- skip_block (current, previous, pitch, x, y);
- break;
-
- case SVQ1_BLOCK_INTER:
- result = motion_inter_block (bitbuf, current, previous, pitch, motion, x, y, width, height);
-
- if (result != 0)
- break;
-
- result = decode_svq1_block (bitbuf, current, pitch, 0);
- break;
-
- case SVQ1_BLOCK_INTER_4V:
- result = motion_inter_4v_block (bitbuf, current, previous, pitch, motion, x, y, width, height);
-
- if (result != 0)
- break;
-
- result = decode_svq1_block (bitbuf, current, pitch, 0);
- break;
-
- case SVQ1_BLOCK_INTRA:
- result = decode_svq1_block (bitbuf, current, pitch, 1);
- break;
- }
-
- return result;
-}
-
-static int decode_frame_header (bit_buffer_t *bitbuf, svq1_t *svq1) {
- int frame_size_code;
-
- /* unknown field */
- get_bits (bitbuf, 8);
-
- /* frame type */
- svq1->frame_type = get_bits (bitbuf, 2);
-
- if (svq1->frame_type == 3)
- return -1;
-
- if (svq1->frame_type == SVQ1_FRAME_INTRA) {
-
- /* unknown fields */
- if (svq1->frame_code == 0x50 || svq1->frame_code == 0x60) {
- get_bits (bitbuf, 16);
- }
-
- if ((svq1->frame_code ^ 0x10) >= 0x50) {
- bitbuf->bitpos += 8*get_bits (bitbuf, 8);
- }
-
- get_bits (bitbuf, 2);
- get_bits (bitbuf, 2);
- get_bits (bitbuf, 1);
-
- /* load frame size */
- frame_size_code = get_bits (bitbuf, 3);
-
- if (frame_size_code == 7) {
- /* load width, height (12 bits each) */
- svq1->frame_width = get_bits (bitbuf, 12);
- svq1->frame_height = get_bits (bitbuf, 12);
-
- if (!svq1->frame_width || !svq1->frame_height)
- return -1;
- } else {
- /* get width, height from table */
- svq1->frame_width = frame_size_table[frame_size_code].width;
- svq1->frame_height = frame_size_table[frame_size_code].height;
- }
- }
-
- /* unknown fields */
- if (get_bits (bitbuf, 1) == 1) {
- get_bits (bitbuf, 1);
- get_bits (bitbuf, 1);
-
- if (get_bits (bitbuf, 2) != 0)
- return -1;
- }
-
- if (get_bits (bitbuf, 1) == 1) {
- get_bits (bitbuf, 1);
- get_bits (bitbuf, 4);
- get_bits (bitbuf, 1);
- get_bits (bitbuf, 2);
-
- while (get_bits (bitbuf, 1) == 1) {
- get_bits (bitbuf, 8);
- }
- }
-
- return 0;
-}
-
-static int svq1_decode_frame (svq1_t *svq1, uint8_t *buffer, int length) {
- bit_buffer_t bitbuf;
- uint8_t *current, *previous;
- int result, i, x, y, width, height;
- int luma_size, chroma_size;
-
- /* initialize bit buffer */
- bitbuf.buffer = buffer;
- bitbuf.bitpos = 0;
- bitbuf.length = 8*length;
-
- /* decode frame header */
- svq1->frame_code = get_bits (&bitbuf, 22);
-
- if ((svq1->frame_code & ~0x70) || !(svq1->frame_code & 0x60))
- return -1;
-
- /* swap some header bytes (why?) */
- if (svq1->frame_code != 0x20) {
- uint32_t *src = (uint32_t *) (buffer + 4);
-
- for (i=0; i < 4; i++) {
- src[i] = ((src[i] << 16) | (src[i] >> 16)) ^ src[7 - i];
- }
- }
-
- result = decode_frame_header (&bitbuf, svq1);
-
- if (result != 0 || bitbuf.bitpos > bitbuf.length)
- return result;
-
- /* check frame size (changed?) */
- if (((svq1->frame_width + 3) & ~0x3) != svq1->width ||
- ((svq1->frame_height + 3) & ~0x3) != svq1->height) {
-
- /* free current buffers */
- free (svq1->current);
- free (svq1->previous);
- free (svq1->motion);
-
- svq1->width = (svq1->frame_width + 3) & ~0x3;
- svq1->height = (svq1->frame_height + 3) & ~0x3;
- svq1->ratio = (double)svq1->width/(double)svq1->height;
- svq1->luma_width = (svq1->width + 15) & ~0xF;
- svq1->luma_height = (svq1->height + 15) & ~0xF;
- svq1->chroma_width = ((svq1->width / 4) + 15) & ~0xF;
- svq1->chroma_height = ((svq1->height / 4) + 15) & ~0xF;
-
- /* allocate new pixel and motion buffers for updated frame size */
- luma_size = svq1->luma_width * svq1->luma_height;
- chroma_size = svq1->chroma_width * svq1->chroma_height;
-
- svq1->motion = (svq1_pmv_t *) malloc (((svq1->luma_width / 8) + 3) * sizeof(svq1_pmv_t));
- svq1->current = (uint8_t *) malloc (luma_size + 2*chroma_size);
- svq1->previous = (uint8_t *) malloc (luma_size + 2*chroma_size);
- svq1->offsets[0] = 0;
- svq1->offsets[1] = luma_size;
- svq1->offsets[2] = luma_size + chroma_size;
-
- for (i=0; i < 3; i++) {
- svq1->base[i] = svq1->current + svq1->offsets[i];
- }
-
- svq1->reference_frame = 0;
- }
-
- /* delta frame requires reference frame */
- if (svq1->frame_type != SVQ1_FRAME_INTRA && !svq1->reference_frame)
- return -1;
-
- /* decode y, u and v components */
- for (i=0; i < 3; i++) {
- if (i == 0) {
- width = svq1->luma_width;
- height = svq1->luma_height;
- } else {
- width = svq1->chroma_width;
- height = svq1->chroma_height;
- }
-
- current = svq1->current + svq1->offsets[i];
- previous = svq1->previous + svq1->offsets[i];
-
- if (svq1->frame_type == SVQ1_FRAME_INTRA) {
- /* keyframe */
- for (y=0; y < height; y+=16) {
- for (x=0; x < width; x+=16) {
- result = decode_svq1_block (&bitbuf, &current[x], width, 1);
-
- if (result != 0 || bitbuf.bitpos > bitbuf.length)
- return result;
- }
-
- current += 16*width;
- }
- } else {
- /* delta frame */
- memset (svq1->motion, 0, ((width / 8) + 3) * sizeof(svq1_pmv_t));
-
- for (y=0; y < height; y+=16) {
- for (x=0; x < width; x+=16) {
- result = decode_delta_block (&bitbuf, &current[x], previous,
- width, svq1->motion, x, y, width, height);
-
- if (result != 0 || bitbuf.bitpos > bitbuf.length)
- return result;
- }
-
- svq1->motion[0].x = 0;
- svq1->motion[0].y = 0;
-
- current += 16*width;
- }
- }
- }
-
- /* update pixel buffers for frame copy */
- for (i=0; i < 3; i++) {
- svq1->base[i] = svq1->current + svq1->offsets[i];
- }
-
- /* update backward reference frame */
- if (svq1->frame_type != SVQ1_FRAME_DROPPABLE) {
- uint8_t *tmp = svq1->previous;
- svq1->previous = svq1->current;
- svq1->current = tmp;
- svq1->reference_frame = 1;
- }
-
- return 0;
-}
-
-static void svq1dec_decode_data (video_decoder_t *this_gen, buf_element_t *buf) {
- svq1dec_decoder_t *this = (svq1dec_decoder_t *) this_gen;
-
- if (buf->decoder_flags & BUF_FLAG_PREVIEW)
- return;
-
- if (buf->decoder_flags & BUF_FLAG_FRAMERATE) {
- this->video_step = buf->decoder_info[0];
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_FRAME_DURATION, this->video_step);
- }
-
- if (buf->decoder_flags & BUF_FLAG_STDHEADER) {
- if (this->buf)
- free (this->buf);
- this->bufsize = VIDEOBUFSIZE;
- this->buf = malloc(this->bufsize);
- this->size = 0;
-
- this->stream->video_out->open (this->stream->video_out, this->stream);
- this->decoder_ok = 1;
-
- /* load the stream/meta info */
- _x_meta_info_set(this->stream, XINE_META_INFO_VIDEOCODEC, "Sorenson Video 1");
-
- } else if (this->decoder_ok) {
-
- if (this->size + buf->size > this->bufsize) {
- this->bufsize = this->size + 2 * buf->size;
- this->buf = realloc (this->buf, this->bufsize);
- }
-
- xine_fast_memcpy (&this->buf[this->size], buf->content, buf->size);
-
- this->size += buf->size;
-
- if (buf->decoder_flags & BUF_FLAG_FRAME_END) {
-
- vo_frame_t *img;
- int result;
-
- result = svq1_decode_frame (this->svq1, this->buf, this->size);
-
- if (this->svq1->width > 0 && this->svq1->height > 0) {
-
- img = this->stream->video_out->get_frame (this->stream->video_out,
- this->svq1->width,
- this->svq1->height,
- this->svq1->ratio,
- XINE_IMGFMT_YV12,
- VO_BOTH_FIELDS);
-
- img->duration = this->video_step;
- img->pts = buf->pts;
- img->bad_frame = (result != 0);
-
- if (result == 0) {
- yuv9_to_yv12 (this->svq1->base[0], this->svq1->luma_width,
- img->base[0], img->pitches[0],
- this->svq1->base[1], this->svq1->chroma_width,
- img->base[1], img->pitches[1],
- this->svq1->base[2], this->svq1->chroma_width,
- img->base[2], img->pitches[2],
- this->svq1->width, this->svq1->height);
- }
-
- img->draw(img, this->stream);
- img->free(img);
- }
-
- this->size = 0;
- }
- }
-}
-
-static void svq1dec_flush (video_decoder_t *this_gen) {
-}
-
-static void svq1dec_reset (video_decoder_t *this_gen) {
- svq1dec_decoder_t *this = (svq1dec_decoder_t *) this_gen;
-
- if (this->svq1) {
- this->svq1->reference_frame = 0;
- }
-
- this->size = 0;
-}
-
-static void svq1dec_discontinuity (video_decoder_t *this_gen) {
-}
-
-static void svq1dec_dispose (video_decoder_t *this_gen) {
-
- svq1dec_decoder_t *this = (svq1dec_decoder_t *) this_gen;
-
- if (this->svq1) {
- free (this->svq1->current);
- free (this->svq1->previous);
- free (this->svq1->motion);
- free (this->svq1);
- this->svq1 = NULL;
- }
-
- if (this->buf) {
- free (this->buf);
- this->buf = NULL;
- }
-
- if (this->decoder_ok) {
- this->decoder_ok = 0;
- this->stream->video_out->close(this->stream->video_out, this->stream);
- }
-
- free (this_gen);
-}
-
-static video_decoder_t *open_plugin (video_decoder_class_t *class_gen, xine_stream_t *stream) {
-
- svq1dec_decoder_t *this ;
-
- this = (svq1dec_decoder_t *) xine_xmalloc (sizeof (svq1dec_decoder_t));
-
- this->video_decoder.decode_data = svq1dec_decode_data;
- this->video_decoder.flush = svq1dec_flush;
- this->video_decoder.reset = svq1dec_reset;
- this->video_decoder.discontinuity = svq1dec_discontinuity;
- this->video_decoder.dispose = svq1dec_dispose;
- this->size = 0;
-
- this->stream = stream;
- this->class = (svq1_class_t *) class_gen;
-
- this->svq1 = (svq1_t *) xine_xmalloc (sizeof(svq1_t));
-
- this->decoder_ok = 0;
- this->buf = NULL;
-
- return &this->video_decoder;
-}
-
-static char *get_identifier (video_decoder_class_t *this) {
- return "SVQ1";
-}
-
-static char *get_description (video_decoder_class_t *this) {
- return "Sorenson Video v1 decoder plugin";
-}
-
-static void dispose_class (video_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- svq1_class_t *this;
-
- this = (svq1_class_t *) xine_xmalloc (sizeof (svq1_class_t));
-
- this->decoder_class.open_plugin = open_plugin;
- this->decoder_class.get_identifier = get_identifier;
- this->decoder_class.get_description = get_description;
- this->decoder_class.dispose = dispose_class;
-
- return this;
-}
-
-/*
- * exported plugin catalog entry
- */
-
-static uint32_t video_types[] = {
- BUF_VIDEO_SORENSON_V1,
- 0
- };
-
-static decoder_info_t dec_info_video = {
- video_types, /* supported types */
- 6 /* priority */
-};
-
-plugin_info_t xine_plugin_info[] = {
- /* type, API, "name", version, special_info, init_function */
- { PLUGIN_VIDEO_DECODER, 18, "svq1", XINE_VERSION_CODE, &dec_info_video, init_plugin },
- { PLUGIN_NONE, 0, "", 0, NULL, NULL }
-};
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-02 04:19:05 +0000