54 typedef struct svq1_pmv_s {
70 0x00, 0xD5, 0x7F, 0xAA, 0xFE, 0x2B, 0x81, 0x54,
71 0x29, 0xFC, 0x56, 0x83, 0xD7, 0x02, 0xA8, 0x7D,
72 0x52, 0x87, 0x2D, 0xF8, 0xAC, 0x79, 0xD3, 0x06,
73 0x7B, 0xAE, 0x04, 0xD1, 0x85, 0x50, 0xFA, 0x2F,
74 0xA4, 0x71, 0xDB, 0x0E, 0x5A, 0x8F, 0x25, 0xF0,
75 0x8D, 0x58, 0xF2, 0x27, 0x73, 0xA6, 0x0C, 0xD9,
76 0xF6, 0x23, 0x89, 0x5C, 0x08, 0xDD, 0x77, 0xA2,
77 0xDF, 0x0A, 0xA0, 0x75, 0x21, 0xF4, 0x5E, 0x8B,
78 0x9D, 0x48, 0xE2, 0x37, 0x63, 0xB6, 0x1C, 0xC9,
79 0xB4, 0x61, 0xCB, 0x1E, 0x4A, 0x9F, 0x35, 0xE0,
80 0xCF, 0x1A, 0xB0, 0x65, 0x31, 0xE4, 0x4E, 0x9B,
81 0xE6, 0x33, 0x99, 0x4C, 0x18, 0xCD, 0x67, 0xB2,
82 0x39, 0xEC, 0x46, 0x93, 0xC7, 0x12, 0xB8, 0x6D,
83 0x10, 0xC5, 0x6F, 0xBA, 0xEE, 0x3B, 0x91, 0x44,
84 0x6B, 0xBE, 0x14, 0xC1, 0x95, 0x40, 0xEA, 0x3F,
85 0x42, 0x97, 0x3D, 0xE8, 0xBC, 0x69, 0xC3, 0x16,
86 0xEF, 0x3A, 0x90, 0x45, 0x11, 0xC4, 0x6E, 0xBB,
87 0xC6, 0x13, 0xB9, 0x6C, 0x38, 0xED, 0x47, 0x92,
88 0xBD, 0x68, 0xC2, 0x17, 0x43, 0x96, 0x3C, 0xE9,
89 0x94, 0x41, 0xEB, 0x3E, 0x6A, 0xBF, 0x15, 0xC0,
90 0x4B, 0x9E, 0x34, 0xE1, 0xB5, 0x60, 0xCA, 0x1F,
91 0x62, 0xB7, 0x1D, 0xC8, 0x9C, 0x49, 0xE3, 0x36,
92 0x19, 0xCC, 0x66, 0xB3, 0xE7, 0x32, 0x98, 0x4D,
93 0x30, 0xE5, 0x4F, 0x9A, 0xCE, 0x1B, 0xB1, 0x64,
94 0x72, 0xA7, 0x0D, 0xD8, 0x8C, 0x59, 0xF3, 0x26,
95 0x5B, 0x8E, 0x24, 0xF1, 0xA5, 0x70, 0xDA, 0x0F,
96 0x20, 0xF5, 0x5F, 0x8A, 0xDE, 0x0B, 0xA1, 0x74,
97 0x09, 0xDC, 0x76, 0xA3, 0xF7, 0x22, 0x88, 0x5D,
98 0xD6, 0x03, 0xA9, 0x7C, 0x28, 0xFD, 0x57, 0x82,
99 0xFF, 0x2A, 0x80, 0x55, 0x01, 0xD4, 0x7E, 0xAB,
100 0x84, 0x51, 0xFB, 0x2E, 0x7A, 0xAF, 0x05, 0xD0,
101 0xAD, 0x78, 0xD2, 0x07, 0x53, 0x86, 0x2C, 0xF9
104 #define SVQ1_PROCESS_VECTOR() \
105 for (; level > 0; i++) { \
113 if (get_bits1(bitbuf) == 0) \
116 list[n++] = list[i]; \
117 list[n++] = list[i] + \
118 (((level & 1) ? pitch : 1) << (level / 2 + 1)); \
121 #define SVQ1_ADD_CODEBOOK() \
123 for (j = 0; j < stages; j++) { \
124 n3 = codebook[entries[j]] ^ 0x80808080; \
125 n1 += (n3 & 0xFF00FF00) >> 8; \
126 n2 += n3 & 0x00FF00FF; \
130 if (n1 & 0xFF00FF00) { \
131 n3 = (n1 >> 15 & 0x00010001 | 0x01000100) - 0x00010001; \
133 n1 |= (~n1 >> 15 & 0x00010001 | 0x01000100) - 0x00010001; \
134 n1 &= n3 & 0x00FF00FF; \
137 if (n2 & 0xFF00FF00) { \
138 n3 = (n2 >> 15 & 0x00010001 | 0x01000100) - 0x00010001; \
140 n2 |= (~n2 >> 15 & 0x00010001 | 0x01000100) - 0x00010001; \
141 n2 &= n3 & 0x00FF00FF; \
144 #define SVQ1_CALC_CODEBOOK_ENTRIES(cbook) \
145 codebook = (const uint32_t *)cbook[level]; \
147 bit_cache = get_bits(bitbuf, 4 * stages); \
149 for (j = 0; j < stages; j++) { \
150 entries[j] = (((bit_cache >> (4 * (stages - j - 1))) & 0xF) + \
151 16 * j) << (level + 1); \
153 mean -= stages * 128; \
154 n4 = mean + (mean >> 31) << 16 | (mean & 0xFFFF);
162 const uint32_t *codebook;
167 uint32_t n1, n2, n3, n4;
173 for (i = 0, m = 1, n = 1, level = 5; i < n; i++) {
177 dst = (uint32_t *)list[i];
178 width = 1 << ((4 +
level) / 2);
179 height = 1 << ((3 +
level) / 2);
182 stages =
get_vlc2(bitbuf, svq1_intra_multistage[level].table, 3, 3) - 1;
185 for (y = 0; y <
height; y++)
186 memset(&dst[y * (pitch / 4)], 0, width);
190 if (stages > 0 && level >= 4) {
192 "Error (svq1_decode_block_intra): invalid vector: stages=%i level=%i\n",
200 for (y = 0; y <
height; y++)
201 memset(&dst[y * (pitch / 4)], mean, width);
205 for (y = 0; y <
height; y++) {
206 for (x = 0; x < width / 4; x++, codebook++) {
211 dst[x] = n1 << 8 | n2;
227 const uint32_t *codebook;
232 uint32_t n1, n2, n3, n4;
238 for (i = 0, m = 1, n = 1, level = 5; i < n; i++) {
242 dst = (uint32_t *)list[i];
243 width = 1 << ((4 +
level) / 2);
244 height = 1 << ((3 +
level) / 2);
247 stages =
get_vlc2(bitbuf, svq1_inter_multistage[level].table, 3, 2) - 1;
252 if ((stages > 0) && (level >= 4)) {
254 "Error (svq1_decode_block_non_intra): invalid vector: stages=%i level=%i\n",
263 for (y = 0; y <
height; y++) {
264 for (x = 0; x < width / 4; x++, codebook++) {
267 n1 = n4 + ((n3 & 0xFF00FF00) >> 8);
268 n2 = n4 + (n3 & 0x00FF00FF);
271 dst[x] = n1 << 8 | n2;
285 for (i = 0; i < 2; i++) {
306 int pitch,
int x,
int y)
312 src = &previous[x + y * pitch];
315 for (i = 0; i < 16; i++) {
316 memcpy(dst, src, 16);
324 int pitch,
svq1_pmv *motion,
int x,
int y,
339 pmv[1] = &motion[x / 8 + 2];
340 pmv[2] = &motion[x / 8 + 4];
349 motion[x / 8 + 2].
x =
350 motion[x / 8 + 3].
x = mv.
x;
352 motion[x / 8 + 2].
y =
353 motion[x / 8 + 3].
y = mv.
y;
355 mv.
x = av_clip(mv.
x, -2 * x, 2 * (width - x - 16));
356 mv.
y = av_clip(mv.
y, -2 * y, 2 * (height - y - 16));
358 src = &previous[(x + (mv.
x >> 1)) + (y + (mv.
y >> 1)) * pitch];
368 int pitch,
svq1_pmv *motion,
int x,
int y,
383 pmv[1] = &motion[(x / 8) + 2];
384 pmv[2] = &motion[(x / 8) + 4];
398 pmv[1] = &motion[(x / 8) + 3];
407 pmv[2] = &motion[(x / 8) + 1];
415 pmv[2] = &motion[(x / 8) + 2];
416 pmv[3] = &motion[(x / 8) + 3];
424 for (i = 0; i < 4; i++) {
425 int mvx = pmv[i]->x + (i & 1) * 16;
426 int mvy = pmv[i]->y + (i >> 1) * 16;
429 mvx = av_clip(mvx, -2 * x, 2 * (width - x - 8));
430 mvy = av_clip(mvy, -2 * y, 2 * (height - y - 8));
432 src = &previous[(x + (mvx >> 1)) + (y + (mvy >> 1)) * pitch];
435 hdsp->
put_pixels_tab[1][((mvy & 1) << 1) | (mvx & 1)](dst, src, pitch, 8);
439 current += 8 * (pitch - 1);
450 int pitch,
svq1_pmv *motion,
int x,
int y,
463 motion[x / 8 + 2].
x =
464 motion[x / 8 + 2].
y =
465 motion[x / 8 + 3].
x =
466 motion[x / 8 + 3].
y = 0;
469 switch (block_type) {
476 pitch, motion, x, y, width, height);
479 av_dlog(avctx,
"Error in svq1_motion_inter_block %i\n", result);
487 pitch, motion, x, y, width, height);
490 av_dlog(avctx,
"Error in svq1_motion_inter_4v_block %i\n", result);
512 for (i = 1; i <= out[0]; i++) {
551 av_dlog(avctx,
"%s checksum (%02x) for packet data\n",
552 (csum == 0) ?
"correct" :
"incorrect", csum);
561 "embedded message: \"%s\"\n", (
char *)msg);
569 frame_size_code =
get_bits(bitbuf, 3);
571 if (frame_size_code == 7) {
611 int buf_size = avpkt->
size;
629 uint32_t *src = (uint32_t *)(buf + 4);
631 for (i = 0; i < 4; i++)
632 src[i] = ((src[i] << 16) | (src[i] >> 16)) ^ src[7 - i];
638 av_dlog(avctx,
"Error in svq1_decode_frame_header %i\n", result);
661 for (i = 0; i < 3; i++) {
673 current = cur->
data[i];
677 for (y = 0; y <
height; y += 16) {
678 for (x = 0; x <
width; x += 16) {
683 "Error in svq1_decode_block %i (keyframe)\n",
688 current += 16 * linesize;
700 memset(pmv, 0, ((width / 8) + 3) *
sizeof(
svq1_pmv));
702 for (y = 0; y <
height; y += 16) {
703 for (x = 0; x <
width; x += 16) {
707 pmv, x, y, width, height);
710 "Error in svq1_decode_delta_block %i\n",
719 current += 16 * linesize;
763 for (i = 0; i < 6; i++) {
764 static const uint8_t sizes[2][6] = { { 14, 10, 14, 18, 16, 18 },
765 { 10, 10, 14, 14, 14, 16 } };
767 svq1_intra_multistage[i].
table = &table[offset];
769 offset += sizes[0][i];
770 init_vlc(&svq1_intra_multistage[i], 3, 8,
774 svq1_inter_multistage[i].
table = &table[offset];
776 offset += sizes[1][i];
777 init_vlc(&svq1_inter_multistage[i], 3, 8,