35 #define BITSTREAM_READER_LE 50 {8, {0, 4, 5, 4, 4, 4, 6, 6}},
51 {12, {0, 2, 2, 3, 3, 3, 3, 5, 3, 2, 2, 2}},
52 {12, {0, 2, 3, 4, 3, 3, 3, 3, 4, 3, 2, 2}},
53 {12, {0, 3, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2}},
54 {13, {0, 4, 4, 3, 3, 3, 3, 2, 3, 3, 2, 1, 1}},
55 {9, {0, 4, 4, 4, 4, 3, 3, 3, 2}},
56 {10, {0, 4, 4, 4, 4, 3, 3, 2, 2, 2}},
57 {12, {0, 4, 4, 4, 3, 3, 2, 3, 2, 2, 2, 2}}
62 {10, {1, 2, 3, 4, 4, 7, 5, 5, 4, 1}},
63 {11, {2, 3, 4, 4, 4, 7, 5, 4, 3, 3, 2}},
64 {12, {2, 4, 5, 5, 5, 5, 6, 4, 4, 3, 1, 1}},
65 {13, {3, 3, 4, 4, 5, 6, 6, 4, 4, 3, 2, 1, 1}},
66 {11, {3, 4, 4, 5, 5, 5, 6, 5, 4, 2, 2}},
67 {13, {3, 4, 5, 5, 5, 5, 6, 4, 3, 3, 2, 1, 1}},
68 {13, {3, 4, 5, 5, 5, 6, 5, 4, 3, 3, 2, 1, 1}},
69 {9, {3, 4, 4, 5, 5, 5, 6, 5, 5}}
76 ptrdiff_t pitch,
int mc_type);
78 const int16_t *ref_buf2,
79 ptrdiff_t pitch,
int mc_type,
int mc_type2);
82 int offs,
int mv_x,
int mv_y,
int mv_x2,
int mv_y2,
83 int mc_type,
int mc_type2)
85 int ref_offs = offs + mv_y * band->
pitch + mv_x;
88 int ref_size = (mc_type > 1) * band->
pitch + (mc_type & 1);
93 av_assert0(buf_size - min_size - ref_size >= ref_offs);
99 int ref_offs2 = offs + mv_y2 * band->
pitch + mv_x2;
100 int ref_size2 = (mc_type2 > 1) * band->
pitch + (mc_type2 & 1);
101 if (offs < 0 || ref_offs2 < 0 || !band->b_ref_buf)
103 if (buf_size - min_size - ref_size2 < ref_offs2)
108 band->
pitch, mc_type2);
110 mc_avg(band->
buf + offs, band->
ref_buf + ref_offs,
129 int pos,
i, j, codes_per_row, prefix, not_last_row;
130 uint16_t codewords[256];
135 for (i = 0; i < cb->
num_rows; i++) {
136 codes_per_row = 1 << cb->
xbits[
i];
137 not_last_row = (i != cb->
num_rows - 1);
138 prefix = ((1 <<
i) - 1) << (cb->
xbits[
i] + not_last_row);
140 for (j = 0; j < codes_per_row; j++) {
144 bits[
pos] = i + cb->
xbits[
i] + not_last_row;
148 codewords[
pos] = prefix | j;
166 for (i = 0; i < 8; i++) {
167 ivi_mb_vlc_tabs[
i].
table = table_data + i * 2 * 8192;
170 &ivi_mb_vlc_tabs[i], 1);
171 ivi_blk_vlc_tabs[
i].
table = table_data + (i * 2 + 1) * 8192;
174 &ivi_blk_vlc_tabs[i], 1);
218 huff_tab->
tab = (which_tab) ? &ivi_blk_vlc_tabs[7]
219 : &ivi_mb_vlc_tabs [7];
232 for (i = 0; i < new_huff.
num_rows; i++)
247 "Error while initializing custom vlc table!\n");
254 huff_tab->
tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->
tab_sel]
255 : &ivi_mb_vlc_tabs [huff_tab->
tab_sel];
270 for (p = 0; p < 3; p++) {
272 for (b = 0; b < planes[p].
num_bands; b++) {
273 av_freep(&planes[p].bands[b].bufs[0]);
274 av_freep(&planes[p].bands[b].bufs[1]);
275 av_freep(&planes[p].bands[b].bufs[2]);
276 av_freep(&planes[p].bands[b].bufs[3]);
278 if (planes[p].bands[b].blk_vlc.cust_tab.table)
281 av_freep(&planes[p].bands[b].tiles[t].mbs);
282 av_freep(&planes[p].bands[b].tiles);
293 uint32_t b_width, b_height, align_fac, width_aligned,
294 height_aligned, buf_size;
313 for (p = 0; p < 3; p++) {
315 if (!planes[p].
bands)
322 : (planes[p].
width + 1) >> 1;
324 : (planes[p].
height + 1) >> 1;
328 align_fac = p ? 8 : 16;
329 width_aligned =
FFALIGN(b_width , align_fac);
330 height_aligned =
FFALIGN(b_height, align_fac);
331 buf_size = width_aligned * height_aligned *
sizeof(int16_t);
333 for (b = 0; b < planes[p].
num_bands; b++) {
334 band = &planes[p].
bands[
b];
337 band->
width = b_width;
339 band->
pitch = width_aligned;
340 band->
aheight = height_aligned;
355 int p,
int b,
int t_height,
int t_width)
360 for (y = 0; y < band->
height; y += t_height) {
361 for (x = 0; x < band->
width; x += t_width) {
394 int tile_width,
int tile_height)
396 int p,
b, x_tiles, y_tiles, t_width, t_height,
ret;
399 for (p = 0; p < 3; p++) {
400 t_width = !p ? tile_width : (tile_width + 3) >> 2;
401 t_height = !p ? tile_height : (tile_height + 3) >> 2;
403 if (!p && planes[0].num_bands == 4) {
404 if (t_width % 2 || t_height % 2) {
411 if(t_width<=0 || t_height<=0)
414 for (b = 0; b < planes[p].
num_bands; b++) {
415 band = &planes[p].
bands[
b];
438 p, b, t_height, t_width);
478 band->
pitch, blk_size);
486 int mv_x2,
int mv_y2,
487 int *prev_dc,
int is_intra,
488 int mc_type,
int mc_type2,
489 uint32_t
quant,
int offs,
496 uint32_t sym = 0, lo, hi, q;
499 int num_coeffs = blk_size * blk_size;
500 int col_mask = blk_size - 1;
506 if (min_size > buf_size)
515 memset(trvec, 0, num_coeffs *
sizeof(trvec[0]));
517 memset(col_flags, 0,
sizeof(col_flags));
518 while (scan_pos <= num_coeffs) {
542 if (scan_pos >= num_coeffs || scan_pos < 0)
544 pos = band->
scan[scan_pos];
547 ff_dlog(avctx,
"Val = 0 encountered!\n");
551 val = val * q +
FFSIGN(val) * (((q ^ 1) - 1) >> 1);
554 col_flags[pos & col_mask] |= !!
val;
557 if (scan_pos < 0 || scan_pos >= num_coeffs && sym != rvmap->
eob_sym)
562 *prev_dc += trvec[0];
564 col_flags[0] |= !!*prev_dc;
574 band->
pitch, col_flags);
578 return ivi_mc(band, mc, mc_avg, offs, mv_x, mv_y, mv_x2, mv_y2,
597 int mbn,
blk, num_blocks, blk_size,
ret, is_intra;
598 int mc_type = 0, mc_type2 = -1;
599 int mv_x = 0, mv_y = 0, mv_x2 = 0, mv_y2 = 0;
601 uint32_t cbp,
quant, buf_offs;
611 num_blocks = (band->
mb_size != blk_size) ? 4 : 1;
624 for (mbn = 0, mb = tile->
mbs; mbn < tile->num_MBs; mb++, mbn++) {
625 is_intra = !mb->
type;
637 quant = scale_tab[
quant];
645 mc_type = ((mv_y & 1) << 1) | (mv_x & 1);
646 mc_type2 = ((mv_y2 & 1) << 1) | (mv_x2 & 1);
657 int dmv_x, dmv_y, cx, cy;
664 if (mb->
xpos + dmv_x < 0 ||
666 mb->
ypos + dmv_y < 0 ||
671 if (mb->
type == 2 || mb->
type == 3) {
672 int dmv_x, dmv_y, cx, cy;
679 if (mb->
xpos + dmv_x < 0 ||
681 mb->
ypos + dmv_y < 0 ||
688 for (blk = 0; blk < num_blocks; blk++) {
691 buf_offs += blk_size;
692 }
else if (blk == 2) {
693 buf_offs -= blk_size;
694 buf_offs += blk_size * band->
pitch;
699 mc_avg_with_delta_func,
700 mv_x, mv_y, mv_x2, mv_y2,
702 mc_type, mc_type2, quant,
708 int min_size = (blk_size - 1) * band->
pitch + blk_size;
710 if (min_size > buf_size)
720 ret =
ivi_mc(band, mc_no_delta_func, mc_avg_no_delta_func,
721 buf_offs, mv_x, mv_y, mv_x2, mv_y2,
749 int x, y, need_mc, mbn,
blk, num_blocks, mv_x, mv_y, mc_type;
750 int offs, mb_offset, row_offset,
ret;
759 int pitch = band->
pitch;
763 "parameters %d in ivi_process_empty_tile()\n",
768 offs = tile->
ypos * pitch + tile->
xpos;
771 row_offset = mb_size * pitch;
774 for (y = tile->
ypos; y < (tile->
ypos + tile->
height); y += mb_size) {
777 for (x = tile->
xpos; x < xend; x += mb_size) {
806 int dmv_x, dmv_y, cx, cy;
808 dmv_x = mb->
mv_x >> is_halfpel;
809 dmv_y = mb->
mv_y >> is_halfpel;
810 cx = mb->
mv_x & is_halfpel;
811 cy = mb->
mv_y & is_halfpel;
813 if ( mb->
xpos + dmv_x < 0
814 || mb->
xpos + dmv_x + mb_size + cx > pitch
815 || mb->
ypos + dmv_y < 0
816 || mb->
ypos + dmv_y + mb_size + cy > band->
aheight) {
826 mb_offset += mb_size;
832 num_blocks = (mb_size != band->
blk_size) ? 4 : 1;
836 for (mbn = 0, mb = tile->
mbs; mbn < tile->num_MBs; mb++, mbn++) {
842 mc_type = ((mv_y & 1) << 1) | (mv_x & 1);
847 for (blk = 0; blk < num_blocks; blk++) {
850 ret =
ivi_mc(band, mc_no_delta_func, 0, offs,
851 mv_x, mv_y, 0, 0, mc_type, -1);
860 for (y = 0; y < tile->
height; y++) {
861 memcpy(dst, src, tile->
width*
sizeof(band->
buf[0]));
872 static uint16_t ivi_calc_band_checksum(
const IVIBandDesc *band)
880 for (y = 0; y < band->
height; src += band->
pitch, y++)
881 for (x = 0; x < band->
width; x++)
906 for (y = 0; y < plane->
height; y++) {
909 for (x = 0; x <
w; x++) {
910 int t = src[x] + 128;
915 for (x = 0; x <
w; x++)
928 return band->
bufs[
i];
978 for (i = 0; i < band->
num_corr; i++) {
979 idx1 = band->
corr[i * 2];
980 idx2 = band->
corr[i * 2 + 1];
992 tile = &band->
tiles[t];
1005 ff_dlog(avctx,
"Empty tile encountered!\n");
1021 "Corrupted tile data encountered!\n");
1027 "Tile data_size mismatch!\n");
1038 for (i = band->
num_corr-1; i >= 0; i--) {
1039 idx1 = band->
corr[i*2];
1040 idx2 = band->
corr[i*2+1];
1051 uint16_t chksum = ivi_calc_band_checksum(band);
1054 "Band checksum mismatch! Plane %d, band %d, " 1055 "received: %"PRIx32
", calculated: %"PRIx16
"\n",
1072 int buf_size = avpkt->
size;
1084 "Error while decoding picture header: %d\n", result);
1115 for (p = 0; p < 3; p++) {
1120 "Error while decoding band: %d, plane: %d\n", b, p);
1130 for (p = 0; p < 3; p++) {
1232 0, 8, 16, 24, 32, 40, 48, 56,
1233 1, 9, 17, 25, 33, 41, 49, 57,
1234 2, 10, 18, 26, 34, 42, 50, 58,
1235 3, 11, 19, 27, 35, 43, 51, 59,
1236 4, 12, 20, 28, 36, 44, 52, 60,
1237 5, 13, 21, 29, 37, 45, 53, 61,
1238 6, 14, 22, 30, 38, 46, 54, 62,
1239 7, 15, 23, 31, 39, 47, 55, 63
1243 0, 1, 2, 3, 4, 5, 6, 7,
1244 8, 9, 10, 11, 12, 13, 14, 15,
1245 16, 17, 18, 19, 20, 21, 22, 23,
1246 24, 25, 26, 27, 28, 29, 30, 31,
1247 32, 33, 34, 35, 36, 37, 38, 39,
1248 40, 41, 42, 43, 44, 45, 46, 47,
1249 48, 49, 50, 51, 52, 53, 54, 55,
1250 56, 57, 58, 59, 60, 61, 62, 63
1254 0, 1, 4, 8, 5, 2, 3, 6, 9, 12, 13, 10, 7, 11, 14, 15
1266 {1, 1, 0, 1, 1, 0, 1, 1, 2, 2, 1, 1, 1, 1, 3, 3,
1267 1, 1, 2, 2, 1, 1, 4, 4, 1, 1, 1, 1, 2, 2, 5, 5,
1268 1, 1, 3, 3, 1, 1, 6, 6, 1, 2, 1, 2, 7, 7, 1, 1,
1269 8, 8, 1, 1, 4, 2, 1, 4, 2, 1, 3, 3, 1, 1, 1, 9,
1270 9, 1, 2, 1, 2, 1, 5, 5, 1, 1, 10, 10, 1, 1, 3, 3,
1271 2, 2, 1, 1, 11, 11, 6, 4, 4, 1, 6, 1, 2, 1, 2, 12,
1272 8, 1, 12, 7, 8, 7, 1, 16, 1, 16, 1, 3, 3, 13, 1, 13,
1273 2, 2, 1, 15, 1, 5, 14, 15, 1, 5, 14, 1, 17, 8, 17, 8,
1274 1, 4, 4, 2, 2, 1, 25, 25, 24, 24, 1, 3, 1, 3, 1, 8,
1275 6, 7, 6, 1, 18, 8, 18, 1, 7, 23, 2, 2, 23, 1, 1, 21,
1276 22, 9, 9, 22, 19, 1, 21, 5, 19, 5, 1, 33, 20, 33, 20, 8,
1277 4, 4, 1, 32, 2, 2, 8, 3, 32, 26, 3, 1, 7, 7, 26, 6,
1278 1, 6, 1, 1, 16, 1, 10, 1, 10, 2, 16, 29, 28, 2, 29, 28,
1279 1, 27, 5, 8, 5, 27, 1, 8, 3, 7, 3, 31, 41, 31, 1, 41,
1280 6, 1, 6, 7, 4, 4, 1, 1, 2, 1, 2, 11, 34, 30, 11, 1,
1281 30, 15, 15, 34, 36, 40, 36, 40, 35, 35, 37, 37, 39, 39, 38, 38},
1284 { 1, -1, 0, 2, -2, 0, 3, -3, 1, -1, 4, -4, 5, -5, 1, -1,
1285 6, -6, 2, -2, 7, -7, 1, -1, 8, -8, 9, -9, 3, -3, 1, -1,
1286 10, -10, 2, -2, 11, -11, 1, -1, 12, 4, -12, -4, 1, -1, 13, -13,
1287 1, -1, 14, -14, 2, 5, 15, -2, -5, -15, -3, 3, 16, -16, 17, 1,
1288 -1, -17, 6, 18, -6, -18, 2, -2, 19, -19, 1, -1, 20, -20, 4, -4,
1289 7, -7, 21, -21, 1, -1, 2, 3, -3, 22, -2, -22, 8, 23, -8, 1,
1290 2, -23, -1, 2, -2, -2, 24, 1, -24, -1, 25, 5, -5, 1, -25, -1,
1291 9, -9, 26, 1, -26, 3, 1, -1, 27, -3, -1, -27, 1, 3, -1, -3,
1292 28, -4, 4, 10, -10, -28, 1, -1, 1, -1, 29, 6, -29, -6, 30, -4,
1293 3, 3, -3, -30, 1, 4, -1, 31, -3, 1, 11, -11, -1, -31, 32, -1,
1294 -1, 2, -2, 1, 1, -32, 1, 4, -1, -4, 33, -1, 1, 1, -1, 5,
1295 5, -5, -33, -1, -12, 12, -5, -7, 1, 1, 7, 34, 4, -4, -1, 4,
1296 -34, -4, 35, 36, -2, -35, -2, -36, 2, 13, 2, -1, 1, -13, 1, -1,
1297 37, 1, -5, 6, 5, -1, 38, -6, -8, 5, 8, -1, 1, 1, -37, -1,
1298 5, 39, -5, -5, 6, -6, -38, -39, -14, 40, 14, 2, 1, 1, -2, -40,
1299 -1, -2, 2, -1, -1, -1, 1, 1, 1, -1, 1, -1, 1, -1, 1, -1}
1305 {0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 8, 6, 8, 7,
1306 7, 9, 9, 10, 10, 11, 11, 1, 12, 1, 12, 13, 13, 16, 14, 16,
1307 14, 15, 15, 17, 17, 18, 0, 18, 19, 20, 21, 19, 22, 21, 20, 22,
1308 25, 24, 2, 25, 24, 23, 23, 2, 26, 28, 26, 28, 29, 27, 29, 27,
1309 33, 33, 1, 32, 1, 3, 32, 30, 36, 3, 36, 30, 31, 31, 35, 34,
1310 37, 41, 34, 35, 37, 4, 41, 4, 49, 8, 8, 49, 40, 38, 5, 38,
1311 40, 39, 5, 39, 42, 43, 42, 7, 57, 6, 43, 44, 6, 50, 7, 44,
1312 57, 48, 50, 48, 45, 45, 46, 47, 51, 46, 47, 58, 1, 51, 58, 1,
1313 52, 59, 53, 9, 52, 55, 55, 59, 53, 56, 54, 56, 54, 9, 64, 64,
1314 60, 63, 60, 63, 61, 62, 61, 62, 2, 10, 2, 10, 11, 1, 11, 13,
1315 12, 1, 12, 13, 16, 16, 8, 8, 14, 3, 3, 15, 14, 15, 4, 4,
1316 1, 17, 17, 5, 1, 7, 7, 5, 6, 1, 2, 2, 6, 22, 1, 25,
1317 21, 22, 8, 24, 1, 21, 25, 24, 8, 18, 18, 23, 9, 20, 23, 33,
1318 29, 33, 20, 1, 19, 1, 29, 36, 9, 36, 19, 41, 28, 57, 32, 3,
1319 28, 3, 1, 27, 49, 49, 1, 32, 26, 26, 2, 4, 4, 7, 57, 41,
1320 2, 7, 10, 5, 37, 16, 10, 27, 8, 8, 13, 16, 37, 13, 1, 5},
1323 {0, 1, -1, 1, -1, 1, -1, 1, -1, 1, -1, 1, 1, -1, -1, 1,
1324 -1, 1, -1, 1, -1, 1, -1, 2, 1, -2, -1, 1, -1, 1, 1, -1,
1325 -1, 1, -1, 1, -1, 1, 0, -1, 1, 1, 1, -1, 1, -1, -1, -1,
1326 1, 1, 2, -1, -1, 1, -1, -2, 1, 1, -1, -1, 1, 1, -1, -1,
1327 1, -1, 3, 1, -3, 2, -1, 1, 1, -2, -1, -1, -1, 1, 1, 1,
1328 1, 1, -1, -1, -1, 2, -1, -2, 1, 2, -2, -1, 1, 1, 2, -1,
1329 -1, 1, -2, -1, 1, 1, -1, 2, 1, 2, -1, 1, -2, -1, -2, -1,
1330 -1, 1, 1, -1, 1, -1, 1, 1, 1, -1, -1, 1, 4, -1, -1, -4,
1331 1, 1, 1, 2, -1, -1, 1, -1, -1, 1, -1, -1, 1, -2, 1, -1,
1332 1, 1, -1, -1, 1, 1, -1, -1, 3, 2, -3, -2, 2, 5, -2, 2,
1333 2, -5, -2, -2, -2, 2, -3, 3, 2, 3, -3, 2, -2, -2, 3, -3,
1334 6, 2, -2, 3, -6, 3, -3, -3, 3, 7, -4, 4, -3, 2, -7, 2,
1335 2, -2, -4, 2, 8, -2, -2, -2, 4, 2, -2, 2, 3, 2, -2, -2,
1336 2, 2, -2, -8, -2, 9, -2, 2, -3, -2, 2, -2, 2, 2, 2, 4,
1337 -2, -4, 10, 2, 2, -2, -9, -2, 2, -2, 5, 4, -4, 4, -2, 2,
1338 -5, -4, -3, 4, 2, -3, 3, -2, -5, 5, 3, 3, -2, -3, -10, -4}
1344 {1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 0, 1, 1, 5, 5,
1345 2, 2, 6, 6, 7, 7, 1, 8, 1, 8, 3, 3, 9, 9, 1, 2,
1346 2, 1, 4, 10, 4, 10, 11, 11, 1, 5, 12, 12, 1, 5, 13, 13,
1347 3, 3, 6, 6, 2, 2, 14, 14, 16, 16, 15, 7, 15, 8, 8, 7,
1348 1, 1, 17, 17, 4, 4, 1, 1, 18, 18, 2, 2, 5, 5, 25, 3,
1349 9, 3, 25, 9, 19, 24, 19, 24, 1, 21, 20, 1, 21, 22, 20, 22,
1350 23, 23, 8, 6, 33, 6, 8, 33, 7, 7, 26, 26, 1, 32, 1, 32,
1351 28, 4, 28, 10, 29, 27, 27, 10, 41, 4, 29, 2, 2, 41, 36, 31,
1352 49, 31, 34, 30, 34, 36, 30, 35, 1, 49, 11, 5, 35, 11, 1, 3,
1353 3, 5, 37, 37, 8, 40, 8, 40, 12, 12, 42, 42, 1, 38, 16, 57,
1354 1, 6, 16, 39, 38, 6, 7, 7, 13, 13, 39, 43, 2, 43, 57, 2,
1355 50, 9, 44, 9, 50, 4, 15, 48, 44, 4, 1, 15, 48, 14, 14, 1,
1356 45, 45, 8, 3, 5, 8, 51, 47, 3, 46, 46, 47, 5, 51, 1, 17,
1357 17, 58, 1, 58, 2, 52, 52, 2, 53, 7, 59, 6, 6, 56, 53, 55,
1358 7, 55, 1, 54, 59, 56, 54, 10, 1, 10, 4, 60, 1, 60, 8, 4,
1359 8, 64, 64, 61, 1, 63, 3, 63, 62, 61, 5, 11, 5, 3, 11, 62},
1362 { 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 0, 3, -3, 1, -1,
1363 2, -2, 1, -1, 1, -1, 4, 1, -4, -1, 2, -2, 1, -1, 5, 3,
1364 -3, -5, 2, 1, -2, -1, 1, -1, 6, 2, 1, -1, -6, -2, 1, -1,
1365 3, -3, 2, -2, 4, -4, 1, -1, 1, -1, 1, 2, -1, 2, -2, -2,
1366 7, -7, 1, -1, 3, -3, 8, -8, 1, -1, 5, -5, 3, -3, 1, 4,
1367 2, -4, -1, -2, 1, 1, -1, -1, 9, 1, 1, -9, -1, 1, -1, -1,
1368 1, -1, 3, -3, 1, 3, -3, -1, 3, -3, 1, -1, 10, 1, -10, -1,
1369 1, 4, -1, 2, 1, -1, 1, -2, 1, -4, -1, 6, -6, -1, 1, 1,
1370 1, -1, 1, 1, -1, -1, -1, 1, 11, -1, -2, 4, -1, 2, -11, 5,
1371 -5, -4, -1, 1, 4, 1, -4, -1, -2, 2, 1, -1, 12, 1, -2, 1,
1372 -12, 4, 2, 1, -1, -4, 4, -4, 2, -2, -1, 1, 7, -1, -1, -7,
1373 -1, -3, 1, 3, 1, 5, 2, 1, -1, -5, 13, -2, -1, 2, -2, -13,
1374 1, -1, 5, 6, 5, -5, 1, 1, -6, 1, -1, -1, -5, -1, 14, 2,
1375 -2, 1, -14, -1, 8, 1, -1, -8, 1, 5, 1, 5, -5, 1, -1, 1,
1376 -5, -1, 15, 1, -1, -1, -1, 3, -15, -3, 6, 1, 16, -1, 6, -6,
1377 -6, 1, -1, 1, -16, 1, 7, -1, 1, -1, -6, -3, 6, -7, 3, -1}
1383 {0, 1, 1, 2, 2, 3, 3, 4, 4, 1, 1, 5, 5, 6, 6, 7,
1384 7, 8, 8, 9, 9, 2, 2, 10, 10, 1, 1, 11, 11, 12, 12, 3,
1385 3, 13, 13, 0, 14, 14, 16, 15, 16, 15, 4, 4, 17, 1, 17, 1,
1386 5, 5, 18, 18, 2, 2, 6, 6, 8, 19, 7, 8, 7, 19, 20, 20,
1387 21, 21, 22, 24, 22, 24, 23, 23, 1, 1, 25, 25, 3, 3, 26, 26,
1388 9, 9, 27, 27, 28, 28, 33, 29, 4, 33, 29, 1, 4, 1, 32, 32,
1389 2, 2, 31, 10, 30, 10, 30, 31, 34, 34, 5, 5, 36, 36, 35, 41,
1390 35, 11, 41, 11, 37, 1, 8, 8, 37, 6, 1, 6, 40, 7, 7, 40,
1391 12, 38, 12, 39, 39, 38, 49, 13, 49, 13, 3, 42, 3, 42, 16, 16,
1392 43, 43, 14, 14, 1, 1, 44, 15, 44, 15, 2, 2, 57, 48, 50, 48,
1393 57, 50, 4, 45, 45, 4, 46, 47, 47, 46, 1, 51, 1, 17, 17, 51,
1394 8, 9, 9, 5, 58, 8, 58, 5, 52, 52, 55, 56, 53, 56, 55, 59,
1395 59, 53, 54, 1, 6, 54, 7, 7, 6, 1, 2, 3, 2, 3, 64, 60,
1396 60, 10, 10, 64, 61, 62, 61, 63, 1, 63, 62, 1, 18, 24, 18, 4,
1397 25, 4, 8, 21, 21, 1, 24, 22, 25, 22, 8, 11, 19, 11, 23, 1,
1398 20, 23, 19, 20, 5, 12, 5, 1, 16, 2, 12, 13, 2, 13, 1, 16},
1401 { 0, 1, -1, 1, -1, 1, -1, 1, -1, 2, -2, 1, -1, 1, -1, 1,
1402 -1, 1, -1, 1, -1, 2, -2, 1, -1, 3, -3, 1, -1, 1, -1, 2,
1403 -2, 1, -1, 0, 1, -1, 1, 1, -1, -1, 2, -2, 1, 4, -1, -4,
1404 2, -2, 1, -1, -3, 3, 2, -2, 2, 1, 2, -2, -2, -1, 1, -1,
1405 1, -1, 1, 1, -1, -1, 1, -1, 5, -5, 1, -1, 3, -3, 1, -1,
1406 2, -2, 1, -1, 1, -1, 1, 1, 3, -1, -1, 6, -3, -6, -1, 1,
1407 4, -4, 1, 2, 1, -2, -1, -1, 1, -1, 3, -3, 1, -1, 1, 1,
1408 -1, 2, -1, -2, 1, 7, -3, 3, -1, 3, -7, -3, 1, -3, 3, -1,
1409 2, 1, -2, 1, -1, -1, 1, 2, -1, -2, -4, -1, 4, 1, 2, -2,
1410 1, -1, -2, 2, 8, -8, -1, 2, 1, -2, -5, 5, 1, -1, -1, 1,
1411 -1, 1, 4, -1, 1, -4, -1, -1, 1, 1, 9, 1, -9, 2, -2, -1,
1412 -4, 3, -3, -4, -1, 4, 1, 4, 1, -1, 1, -1, 1, 1, -1, 1,
1413 -1, -1, -1, 10, 4, 1, 4, -4, -4, -10, 6, 5, -6, -5, 1, -1,
1414 1, 3, -3, -1, 1, -1, -1, -1, 11, 1, 1, -11, -2, -2, 2, 5,
1415 -2, -5, -5, 2, -2, 12, 2, -2, 2, 2, 5, -3, -2, 3, -2, -12,
1416 -2, 2, 2, 2, -5, 3, 5, 13, -3, 7, -3, -3, -7, 3, -13, 3}
1422 {0, 1, 1, 1, 2, 2, 1, 3, 3, 1, 1, 1, 4, 4, 1, 5,
1423 2, 1, 5, 2, 1, 1, 6, 6, 1, 1, 1, 1, 1, 7, 3, 1,
1424 2, 3, 0, 1, 2, 7, 1, 1, 1, 8, 1, 1, 8, 1, 1, 1,
1425 9, 1, 9, 1, 2, 1, 1, 2, 1, 1, 10, 4, 1, 10, 1, 4,
1426 1, 1, 1, 1, 1, 3, 1, 1, 1, 3, 2, 1, 5, 1, 1, 1,
1427 2, 5, 1, 11, 1, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1428 2, 1, 6, 1, 6, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 12,
1429 3, 1, 12, 1, 1, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 1,
1430 4, 1, 1, 1, 2, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1,
1431 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 5,
1432 1, 1, 1, 1, 1, 7, 1, 7, 1, 1, 2, 3, 1, 1, 1, 1,
1433 5, 1, 1, 1, 1, 1, 1, 2, 13, 1, 1, 1, 1, 1, 1, 1,
1434 1, 1, 1, 1, 1, 1, 1, 1, 13, 2, 1, 1, 4, 1, 1, 1,
1435 3, 1, 6, 1, 1, 1, 14, 1, 1, 1, 1, 1, 14, 6, 1, 1,
1436 1, 1, 15, 2, 4, 1, 2, 3, 15, 1, 1, 1, 8, 1, 1, 8,
1437 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1},
1440 { 0, 1, -1, 2, 1, -1, -2, 1, -1, 3, -3, 4, 1, -1, -4, 1,
1441 2, 5, -1, -2, -5, 6, 1, -1, -6, 7, -7, 8, -8, 1, 2, 9,
1442 3, -2, 0, -9, -3, -1, 10, -10, 11, 1, -11, 12, -1, -12, 13, -13,
1443 1, 14, -1, -14, 4, 15, -15, -4, 16, -16, 1, 2, 17, -1, -17, -2,
1444 18, -18, 19, -19, 20, 3, -20, 21, -21, -3, 5, 22, 2, -22, -23, 23,
1445 -5, -2, 24, 1, -24, -1, 25, -25, 26, -26, -27, 27, 28, 29, -28, -29,
1446 6, 30, 2, -31, -2, -30, 31, -6, -32, 32, 33, -33, 34, -35, -34, 1,
1447 4, -36, -1, 35, 37, 36, 7, -37, 38, -4, -38, 39, 41, 40, -40, -39,
1448 3, 42, -43, -41, -7, -42, 43, -3, 44, -44, 45, -45, 46, 47, 8, -47,
1449 -48, -46, 50, -50, 48, 49, 51, -49, 52, -52, 5, -51, -8, -53, 53, 3,
1450 -56, 56, 55, 54, -54, 2, 60, -2, -55, 58, 9, -5, 59, 57, -57, -63,
1451 -3, -58, -60, -61, 61, -59, -62, -9, 1, 64, 62, 69, -64, 63, 65, -67,
1452 -68, 66, -65, 68, -66, -69, 67, -70, -1, 10, 71, -71, 4, 73, 72, 70,
1453 6, -76, -3, 74, -78, -74, 1, 78, 80, -72, -75, 76, -1, 3, -73, 79,
1454 75, 77, 1, 11, -4, -79, -10, -6, -1, -77, -83, -80, 2, 81, -84, -2,
1455 83, -81, 82, -82, 84, -87, -86, 85, -11, -85, 86, -89, 87, -88, 88, 89}
1461 {1, 1, 0, 2, 1, 2, 1, 3, 3, 1, 1, 4, 4, 2, 2, 1,
1462 1, 5, 5, 6, 1, 6, 1, 7, 7, 3, 3, 2, 8, 2, 8, 1,
1463 1, 0, 9, 9, 1, 1, 10, 4, 10, 4, 11, 11, 2, 1, 2, 1,
1464 12, 12, 3, 3, 1, 1, 13, 5, 5, 13, 14, 1, 1, 14, 2, 2,
1465 6, 6, 15, 1, 1, 15, 16, 4, 7, 16, 4, 7, 1, 1, 3, 3,
1466 8, 8, 2, 2, 1, 1, 17, 17, 1, 1, 18, 18, 5, 5, 2, 2,
1467 1, 1, 9, 19, 9, 19, 20, 3, 3, 20, 1, 10, 21, 1, 10, 4,
1468 4, 21, 22, 6, 6, 22, 1, 1, 23, 24, 2, 2, 23, 24, 11, 1,
1469 1, 11, 7, 25, 7, 1, 1, 25, 8, 8, 3, 26, 3, 1, 12, 2,
1470 2, 26, 1, 12, 5, 5, 27, 4, 1, 4, 1, 27, 28, 1, 28, 13,
1471 1, 13, 2, 29, 2, 1, 32, 6, 1, 30, 14, 29, 14, 6, 3, 31,
1472 3, 1, 30, 1, 32, 31, 33, 9, 33, 1, 1, 7, 9, 7, 2, 2,
1473 1, 1, 4, 36, 34, 4, 5, 10, 10, 5, 34, 1, 1, 35, 8, 8,
1474 36, 3, 35, 1, 15, 3, 2, 1, 16, 15, 16, 2, 37, 1, 37, 1,
1475 1, 1, 6, 6, 38, 1, 38, 11, 1, 39, 39, 40, 11, 2, 41, 4,
1476 40, 1, 2, 4, 1, 1, 1, 41, 3, 1, 3, 1, 5, 7, 5, 7},
1479 { 1, -1, 0, 1, 2, -1, -2, 1, -1, 3, -3, 1, -1, 2, -2, 4,
1480 -4, 1, -1, 1, 5, -1, -5, 1, -1, 2, -2, 3, 1, -3, -1, 6,
1481 -6, 0, 1, -1, 7, -7, 1, 2, -1, -2, 1, -1, 4, 8, -4, -8,
1482 1, -1, 3, -3, 9, -9, 1, 2, -2, -1, 1, 10, -10, -1, 5, -5,
1483 2, -2, 1, 11, -11, -1, 1, 3, 2, -1, -3, -2, 12, -12, 4, -4,
1484 2, -2, -6, 6, 13, -13, 1, -1, 14, -14, 1, -1, 3, -3, 7, -7,
1485 15, -15, 2, 1, -2, -1, 1, 5, -5, -1, -16, 2, 1, 16, -2, 4,
1486 -4, -1, 1, 3, -3, -1, 17, -17, 1, 1, -8, 8, -1, -1, 2, 18,
1487 -18, -2, 3, 1, -3, 19, -19, -1, 3, -3, 6, 1, -6, 20, 2, 9,
1488 -9, -1, -20, -2, 4, -4, 1, -5, 21, 5, -21, -1, 1, -22, -1, 2,
1489 22, -2, 10, 1, -10, 23, 1, 4, -23, 1, 2, -1, -2, -4, -7, 1,
1490 7, -24, -1, 24, -1, -1, 1, 3, -1, -25, 25, 4, -3, -4, 11, -11,
1491 26, -26, 6, 1, 1, -6, -5, -3, 3, 5, -1, -27, 27, 1, 4, -4,
1492 -1, -8, -1, 28, 2, 8, -12, -28, -2, -2, 2, 12, -1, 29, 1, -29,
1493 30, -30, 5, -5, 1, -31, -1, 3, 31, -1, 1, 1, -3, -13, 1, -7,
1494 -1, -32, 13, 7, 32, 33, -33, -1, -9, -34, 9, 34, -6, 5, 6, -5}
1500 {1, 1, 0, 1, 1, 2, 2, 1, 1, 3, 3, 1, 1, 0, 2, 2,
1501 4, 1, 4, 1, 1, 1, 5, 5, 1, 1, 6, 6, 2, 2, 1, 1,
1502 3, 3, 7, 7, 1, 1, 8, 8, 1, 1, 2, 2, 1, 9, 1, 9,
1503 4, 4, 10, 1, 1, 10, 1, 1, 11, 11, 3, 3, 1, 2, 1, 2,
1504 1, 1, 12, 12, 5, 5, 1, 1, 13, 1, 1, 13, 2, 2, 1, 1,
1505 6, 6, 1, 1, 4, 14, 4, 14, 3, 1, 3, 1, 1, 1, 15, 7,
1506 15, 2, 2, 7, 1, 1, 1, 8, 1, 8, 16, 16, 1, 1, 1, 1,
1507 2, 1, 1, 2, 1, 1, 3, 5, 5, 3, 4, 1, 1, 4, 1, 1,
1508 17, 17, 9, 1, 1, 9, 2, 2, 1, 1, 10, 10, 1, 6, 1, 1,
1509 6, 18, 1, 1, 18, 1, 1, 1, 2, 2, 3, 1, 3, 1, 1, 1,
1510 4, 1, 19, 1, 19, 7, 1, 1, 20, 1, 4, 20, 1, 7, 11, 2,
1511 1, 11, 21, 2, 8, 5, 1, 8, 1, 5, 21, 1, 1, 1, 22, 1,
1512 1, 22, 1, 1, 3, 3, 1, 23, 2, 12, 24, 1, 1, 2, 1, 1,
1513 12, 23, 1, 1, 24, 1, 1, 1, 4, 1, 1, 1, 2, 1, 6, 6,
1514 4, 2, 1, 1, 1, 1, 1, 1, 1, 14, 13, 3, 1, 25, 9, 25,
1515 14, 1, 9, 3, 13, 1, 1, 1, 1, 1, 10, 1, 1, 2, 10, 2},
1518 {-20, -1, 0, 2, -2, 1, -1, 3, -3, 1, -1, 4, -4, 0, 2, -2,
1519 1, 5, -1, -5, 6, -6, 1, -1, 7, -7, 1, -1, 3, -3, 8, -8,
1520 2, -2, 1, -1, 9, -9, 1, -1, 10, -10, 4, -4, 11, 1, -11, -1,
1521 2, -2, 1, 12, -12, -1, 13, -13, 1, -1, 3, -3, 14, 5, -14, -5,
1522 -15, 15, -1, 1, 2, -2, 16, -16, 1, 17, -17, -1, 6, -6, 18, -18,
1523 2, -2, -19, 19, -3, 1, 3, -1, 4, 20, -4, 1, -21, 21, 1, 2,
1524 -1, -7, 7, -2, 22, -22, 23, 2, -23, -2, 1, -1, -24, 24, -25, 25,
1525 -8, -26, 26, 8, -27, 27, 5, 3, -3, -5, -4, 28, -28, 4, 29, -29,
1526 1, -1, -2, -30, 30, 2, 9, -9, -31, 31, 2, -2, -32, 3, 32, -33,
1527 -3, 1, 33, -34, -1, 34, -35, 35, -10, 10, -6, 36, 6, -36, 37, -37,
1528 -5, 38, 1, -38, -1, 3, 39, -39, -1, 40, 5, 1, -40, -3, 2, -11,
1529 -41, -2, 1, 11, -3, -4, 41, 3, 42, 4, -1, -43, -42, 43, 1, -44,
1530 45, -1, 44, -45, -7, 7, -46, 1, -12, 2, 1, -47, 46, 12, 47, 48,
1531 -2, -1, -48, 49, -1, -50, -49, 50, -6, -51, 51, 52, -13, 53, -4, 4,
1532 6, 13, -53, -52, -54, 55, 54, -55, -56, -2, 2, -8, 56, 1, -3, -1,
1533 2, 58, 3, 8, -2, 57, -58, -60, -59, -57, -3, 60, 59, -14, 3, 14}
1539 {1, 1, 0, 2, 2, 1, 1, 3, 3, 4, 4, 5, 5, 1, 1, 6,
1540 6, 2, 2, 7, 7, 8, 8, 1, 1, 3, 3, 9, 9, 10, 10, 1,
1541 1, 2, 2, 4, 4, 11, 0, 11, 12, 12, 13, 13, 1, 1, 5, 5,
1542 14, 14, 15, 16, 15, 16, 3, 3, 1, 6, 1, 6, 2, 2, 7, 7,
1543 8, 8, 17, 17, 1, 1, 4, 4, 18, 18, 2, 2, 1, 19, 1, 20,
1544 19, 20, 21, 21, 3, 3, 22, 22, 5, 5, 24, 1, 1, 23, 9, 23,
1545 24, 9, 2, 2, 10, 1, 1, 10, 6, 6, 25, 4, 4, 25, 7, 7,
1546 26, 8, 1, 8, 3, 1, 26, 3, 11, 11, 27, 27, 2, 28, 1, 2,
1547 28, 1, 12, 12, 5, 5, 29, 13, 13, 29, 32, 1, 1, 33, 31, 30,
1548 32, 4, 30, 33, 4, 31, 3, 14, 1, 1, 3, 34, 34, 2, 2, 14,
1549 6, 6, 35, 36, 35, 36, 1, 15, 1, 16, 16, 15, 7, 9, 7, 9,
1550 37, 8, 8, 37, 1, 1, 39, 2, 38, 39, 2, 40, 5, 38, 40, 5,
1551 3, 3, 4, 4, 10, 10, 1, 1, 1, 1, 41, 2, 41, 2, 6, 6,
1552 1, 1, 11, 42, 11, 43, 3, 42, 3, 17, 4, 43, 1, 17, 7, 1,
1553 8, 44, 4, 7, 44, 5, 8, 2, 5, 1, 2, 48, 45, 1, 12, 45,
1554 12, 48, 13, 13, 1, 9, 9, 46, 1, 46, 47, 47, 49, 18, 18, 49},
1557 { 1, -1, 0, 1, -1, 2, -2, 1, -1, 1, -1, 1, -1, 3, -3, 1,
1558 -1, -2, 2, 1, -1, 1, -1, 4, -4, -2, 2, 1, -1, 1, -1, 5,
1559 -5, -3, 3, 2, -2, 1, 0, -1, 1, -1, 1, -1, 6, -6, 2, -2,
1560 1, -1, 1, 1, -1, -1, -3, 3, 7, 2, -7, -2, -4, 4, 2, -2,
1561 2, -2, 1, -1, 8, -8, 3, -3, 1, -1, -5, 5, 9, 1, -9, 1,
1562 -1, -1, 1, -1, -4, 4, 1, -1, 3, -3, 1, -10, 10, 1, 2, -1,
1563 -1, -2, 6, -6, 2, 11, -11, -2, 3, -3, 1, -4, 4, -1, 3, -3,
1564 1, 3, 12, -3, -5, -12, -1, 5, 2, -2, 1, -1, -7, 1, 13, 7,
1565 -1, -13, 2, -2, 4, -4, 1, 2, -2, -1, 1, 14, -14, 1, 1, 1,
1566 -1, -5, -1, -1, 5, -1, -6, 2, -15, 15, 6, 1, -1, -8, 8, -2,
1567 -4, 4, 1, 1, -1, -1, 16, 2, -16, -2, 2, -2, 4, 3, -4, -3,
1568 -1, -4, 4, 1, -17, 17, -1, -9, 1, 1, 9, 1, -5, -1, -1, 5,
1569 -7, 7, 6, -6, 3, -3, 18, -18, 19, -19, 1, -10, -1, 10, -5, 5,
1570 20, -20, -3, 1, 3, 1, 8, -1, -8, 2, 7, -1, -21, -2, 5, 21,
1571 5, -1, -7, -5, 1, -6, -5, -11, 6, 22, 11, 1, 1, -22, -3, -1,
1572 3, -1, 3, -3, -23, 4, -4, 1, 23, -1, 1, -1, 1, -2, 2, -1}
1578 {1, 1, 1, 1, 0, 2, 2, 1, 1, 3, 3, 0, 1, 1, 2, 2,
1579 4, 4, 1, 1, 5, 5, 1, 1, 2, 2, 3, 3, 6, 6, 1, 1,
1580 7, 7, 8, 1, 8, 2, 2, 1, 4, 4, 1, 3, 1, 3, 9, 9,
1581 2, 2, 1, 5, 1, 5, 10, 10, 1, 1, 11, 11, 3, 6, 3, 4,
1582 4, 6, 2, 2, 1, 12, 1, 12, 7, 13, 7, 13, 1, 1, 8, 8,
1583 2, 2, 14, 14, 16, 15, 16, 5, 5, 1, 3, 15, 1, 3, 4, 4,
1584 1, 1, 17, 17, 2, 2, 6, 6, 1, 18, 1, 18, 22, 21, 22, 21,
1585 25, 24, 25, 19, 9, 20, 9, 23, 19, 24, 20, 3, 23, 7, 3, 1,
1586 1, 7, 28, 26, 29, 5, 28, 26, 5, 8, 29, 4, 8, 27, 2, 2,
1587 4, 27, 1, 1, 10, 36, 10, 33, 33, 36, 30, 1, 32, 32, 1, 30,
1588 6, 31, 31, 35, 3, 6, 11, 11, 3, 2, 35, 2, 34, 1, 34, 1,
1589 37, 37, 12, 7, 12, 5, 41, 5, 4, 7, 1, 8, 13, 4, 1, 41,
1590 13, 38, 8, 38, 9, 1, 40, 40, 9, 1, 39, 2, 2, 49, 39, 42,
1591 3, 3, 14, 16, 49, 14, 16, 42, 43, 43, 6, 6, 15, 1, 1, 15,
1592 44, 44, 1, 1, 50, 48, 4, 5, 4, 7, 5, 2, 10, 10, 48, 7,
1593 50, 45, 2, 1, 45, 8, 8, 1, 46, 46, 3, 47, 47, 3, 1, 1},
1596 { 1, -1, 2, -2, 0, 1, -1, 3, -3, 1, -1, 0, 4, -4, 2, -2,
1597 1, -1, 5, -5, 1, -1, 6, -6, 3, -3, 2, -2, 1, -1, 7, -7,
1598 1, -1, 1, 8, -1, 4, -4, -8, 2, -2, 9, 3, -9, -3, 1, -1,
1599 5, -5, 10, 2, -10, -2, 1, -1, 11, -11, 1, -1, -4, 2, 4, 3,
1600 -3, -2, 6, -6, 12, 1, -12, -1, 2, 1, -2, -1, 13, -13, 2, -2,
1601 7, -7, 1, -1, 1, 1, -1, 3, -3, 14, 5, -1, -14, -5, 4, -4,
1602 15, -15, 1, -1, 8, -8, -3, 3, 16, 1, -16, -1, 1, 1, -1, -1,
1603 1, 1, -1, 1, 2, 1, -2, 1, -1, -1, -1, 6, -1, 3, -6, 17,
1604 -17, -3, 1, 1, 1, 4, -1, -1, -4, 3, -1, 5, -3, -1, -9, 9,
1605 -5, 1, 18, -18, 2, 1, -2, 1, -1, -1, 1, 19, -1, 1, -19, -1,
1606 4, 1, -1, 1, 7, -4, -2, 2, -7, 10, -1, -10, 1, 20, -1, -20,
1607 1, -1, 2, 4, -2, 5, 1, -5, 6, -4, 21, 4, 2, -6, -21, -1,
1608 -2, 1, -4, -1, -3, 22, -1, 1, 3, -22, -1, 11, -11, 1, 1, 1,
1609 8, -8, 2, 2, -1, -2, -2, -1, 1, -1, -5, 5, 2, 23, -23, -2,
1610 1, -1, 24, -24, -1, -1, 7, 6, -7, 5, -6, 12, -3, 3, 1, -5,
1611 1, 1, -12, 25, -1, -5, 5, -25, -1, 1, 9, 1, -1, -9, 26, -26}
static av_cold void ivi_init_static_vlc(void)
#define IVI_NUM_TILES(stride, tile_size)
calculate number of tiles in a stride
int is_empty
= 1 if this band doesn't contain any data
const uint8_t ff_ivi_direct_scan_4x4[16]
uint8_t type
macroblock type: 0 - INTRA, 1 - INTER
int num_MBs
number of macroblocks in this tile
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
static const IVIHuffDesc ivi_mb_huff_desc[8]
These are 2x8 predefined Huffman codebooks for coding macroblock/block signals.
static av_always_inline void mv_scale(Mv *dst, Mv *src, int td, int tb)
This structure describes decoded (raw) audio or video data.
ptrdiff_t const GLvoid * data
macroblock/block huffman table descriptor
int(* is_nonnull_frame)(struct IVI45DecContext *ctx)
InvTransformPtr * inv_transform
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
static int ivi_decode_coded_blocks(GetBitContext *gb, const IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg, int mv_x, int mv_y, int mv_x2, int mv_y2, int *prev_dc, int is_intra, int mc_type, int mc_type2, uint32_t quant, int offs, AVCodecContext *avctx)
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
static void skip_bits_long(GetBitContext *s, int n)
Skips the specified number of bits.
static int ivi_huff_desc_cmp(const IVIHuffDesc *desc1, const IVIHuffDesc *desc2)
#define IVI_MBs_PER_TILE(tile_width, tile_height, mb_size)
calculate number of macroblocks in a tile
#define avpriv_request_sample(...)
int8_t b_mv_y
second motion vector (y component)
av_cold int ff_ivi_decode_close(AVCodecContext *avctx)
Close Indeo5 decoder and clean up its context.
#define IVI_VLC_BITS
max number of bits of the ivi's huffman codes
int num_tiles
number of tiles in this band
int dst_buf
buffer index for the currently decoded frame
int16_t * ref_buf
pointer to the reference frame buffer (for motion compensation)
uint8_t eob_sym
end of block symbol
int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
int16_t * buf
pointer to the output buffer for this band
DSP functions (inverse transforms, motion compensations, wavelet recomposition) for Indeo Video Inter...
IVITile * tiles
array of tile descriptors
void(* ivi_mc_avg_func)(int16_t *buf, const int16_t *ref_buf1, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
int is_halfpel
precision of the motion compensation: 0 - fullpel, 1 - halfpel
int(* decode_pic_hdr)(struct IVI45DecContext *ctx, AVCodecContext *avctx)
void av_frame_move_ref(AVFrame *dst, AVFrame *src)
Move everything contained in src to dst and reset src.
int plane
plane number this band belongs to
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
int bufsize
band buffer size in bytes
static const IVIHuffDesc ivi_blk_huff_desc[8]
static block huffman tables
static const struct @322 planes[]
void(* switch_buffers)(struct IVI45DecContext *ctx)
Macro definitions for various function/variable attributes.
void ff_ivi_mc_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
motion compensation without adding delta
RVMapDesc * rv_map
ptr to the RLE table for this band
int8_t b_mv_x
second motion vector (x component)
#define av_assert0(cond)
assert() equivalent, that is always enabled.
static double cb(void *priv, double x, double y)
void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst, const ptrdiff_t dst_pitch)
5/3 wavelet recomposition filter for Indeo5
ptrdiff_t pitch
pitch associated with the buffers above
static int ivi_dec_tile_data_size(GetBitContext *gb)
VLC * tab
index of one of the predefined tables or "7" for custom one
const uint8_t * frame_data
input frame data pointer
const uint16_t * inter_base
quantization matrix for inter blocks
const uint8_t * data_ptr
ptr to the first byte of the band data
static void * prepare_buf(IVI45DecContext *ctx, IVIBandDesc *band, int i)
void ff_ivi_mc_avg_8x8_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
motion compensation without adding delta for B-frames
void ff_ivi_mc_4x4_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
4x4 block motion compensation with adding delta
int inherit_mv
tells if motion vector is inherited from reference macroblock
static int ivi_init_tiles(const IVIBandDesc *band, IVITile *ref_tile, int p, int b, int t_height, int t_width)
static int ivi_mc(const IVIBandDesc *band, ivi_mc_func mc, ivi_mc_avg_func mc_avg, int offs, int mv_x, int mv_y, int mv_x2, int mv_y2, int mc_type, int mc_type2)
int16_t * bufs[4]
array of pointers to the band buffers
const uint8_t ff_ivi_vertical_scan_8x8[64]
Scan patterns shared between indeo4 and indeo5.
static int get_bits_count(const GetBitContext *s)
uint8_t cbp
coded block pattern
int qdelta_present
tells if Qdelta signal is present in the bitstream (Indeo5 only)
#define IVI5_IS_PROTECTED
bitstream reader API header.
static VLC_TYPE table_data[117592][2]
int(* decode_band_hdr)(struct IVI45DecContext *ctx, IVIBandDesc *band, AVCodecContext *avctx)
IVIPlaneDesc planes[3]
color planes
const uint16_t * intra_base
quantization matrix for intra blocks
IVIHuffDesc cust_desc
pointer to the table associated with tab_sel
static int get_bits_left(GetBitContext *gb)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
uint8_t corr[61 *2]
rvmap correction pairs
RVMapDesc rvmap_tabs[9]
local corrected copy of the static rvmap tables
#define init_vlc(vlc, nb_bits, nb_codes,bits, bits_wrap, bits_size,codes, codes_wrap, codes_size,flags)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
av_cold int ff_ivi_init_tiles(IVIPlaneDesc *planes, int tile_width, int tile_height)
Initialize tile and macroblock descriptors.
int ref_buf
inter frame reference buffer index
DCTransformPtr * dc_transform
This file contains structures and macros shared by both Indeo4 and Indeo5 decoders.
void ff_ivi_mc_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
4x4 block motion compensation without adding delta
int64_t max_pixels
The number of pixels per image to maximally accept.
static int ivi_decode_blocks(GetBitContext *gb, const IVIBandDesc *band, IVITile *tile, AVCodecContext *avctx)
static int decode_band(IVI45DecContext *ctx, IVIBandDesc *band, AVCodecContext *avctx)
Decode an Indeo 4 or 5 band.
uint8_t esc_sym
escape symbol
static int ivi_create_huff_from_desc(const IVIHuffDesc *cb, VLC *vlc, int flag)
void ff_ivi_mc_8x8_delta(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
8x8 block motion compensation with adding delta
static int ivi_dc_transform(const IVIBandDesc *band, int *prev_dc, int buf_offs, int blk_size)
run-value (RLE) table descriptor
static VLC ivi_blk_vlc_tabs[8]
static block Huffman tables
int inherit_qdelta
tells if quantiser delta is inherited from reference macroblock
uint8_t num_bands
number of bands this plane subdivided into
const uint8_t ff_ivi_horizontal_scan_8x8[64]
const RVMapDesc ff_ivi_rvmap_tabs[9]
Run-value (RLE) tables.
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
IVIMbInfo * mbs
array of macroblock descriptors
int16_t * b_ref_buf
pointer to the second reference frame buffer (for motion compensation)
static unsigned int show_bits(GetBitContext *s, int n)
Show 1-25 bits.
void ff_ivi_mc_avg_8x8_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
8x8 block motion compensation with adding delta
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
const uint8_t * inter_scale
quantization coefficient for inter blocks
static av_always_inline int get_vlc2(GetBitContext *s, VLC_TYPE(*table)[2], int bits, int max_depth)
Parse a vlc code.
int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab, IVIHuffTab *huff_tab, AVCodecContext *avctx)
Decode a huffman codebook descriptor from the bitstream and select specified huffman table...
static volatile int checksum
static void ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src)
int8_t q_delta
quant delta
uint32_t frame_size
frame size in bytes
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
static VLC ivi_mb_vlc_tabs[8]
static macroblock Huffman tables
IVIHuffTab mb_vlc
current macroblock table descriptor
int is_2d_trans
1 indicates that the two-dimensional inverse transform is used
Libavcodec external API header.
int glob_quant
quant base for this band
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst, const ptrdiff_t dst_pitch)
Haar wavelet recomposition filter for Indeo 4.
av_cold int ff_ivi_init_planes(AVCodecContext *avctx, IVIPlaneDesc *planes, const IVIPicConfig *cfg, int is_indeo4)
Initialize planes (prepares descriptors, allocates buffers etc).
main external API structure.
int aheight
aligned band height
int is_empty
= 1 if this tile doesn't contain any data
static const float bands[]
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
Tag MUST be and< 10hcoeff half pel interpolation filter coefficients, hcoeff[0] are the 2 middle coefficients[1] are the next outer ones and so on, resulting in a filter like:...eff[2], hcoeff[1], hcoeff[0], hcoeff[0], hcoeff[1], hcoeff[2]...the sign of the coefficients is not explicitly stored but alternates after each coeff and coeff[0] is positive, so...,+,-,+,-,+,+,-,+,-,+,...hcoeff[0] is not explicitly stored but found by subtracting the sum of all stored coefficients with signs from 32 hcoeff[0]=32-hcoeff[1]-hcoeff[2]-...a good choice for hcoeff and htaps is htaps=6 hcoeff={40,-10, 2}an alternative which requires more computations at both encoder and decoder side and may or may not be better is htaps=8 hcoeff={42,-14, 6,-2}ref_frames minimum of the number of available reference frames and max_ref_frames for example the first frame after a key frame always has ref_frames=1spatial_decomposition_type wavelet type 0 is a 9/7 symmetric compact integer wavelet 1 is a 5/3 symmetric compact integer wavelet others are reserved stored as delta from last, last is reset to 0 if always_reset||keyframeqlog quality(logarithmic quantizer scale) stored as delta from last, last is reset to 0 if always_reset||keyframemv_scale stored as delta from last, last is reset to 0 if always_reset||keyframe FIXME check that everything works fine if this changes between framesqbias dequantization bias stored as delta from last, last is reset to 0 if always_reset||keyframeblock_max_depth maximum depth of the block tree stored as delta from last, last is reset to 0 if always_reset||keyframequant_table quantization tableHighlevel bitstream structure:==============================--------------------------------------------|Header|--------------------------------------------|------------------------------------|||Block0||||split?||||yes no||||.........intra?||||:Block01:yes no||||:Block02:.................||||:Block03::y DC::ref index:||||:Block04::cb DC::motion x:||||.........:cr DC::motion y:||||.................|||------------------------------------||------------------------------------|||Block1|||...|--------------------------------------------|------------------------------------|||Y subbands||Cb subbands||Cr subbands||||------||------||------|||||LL0||HL0||||LL0||HL0||||LL0||HL0|||||------||------||------||||------||------||------|||||LH0||HH0||||LH0||HH0||||LH0||HH0|||||------||------||------||||------||------||------|||||HL1||LH1||||HL1||LH1||||HL1||LH1|||||------||------||------||||------||------||------|||||HH1||HL2||||HH1||HL2||||HH1||HL2|||||...||...||...|||------------------------------------|--------------------------------------------Decoding process:=================------------|||Subbands|------------||||------------|Intra DC||||LL0 subband prediction------------|\Dequantization-------------------\||Reference frames|\IDWT|--------------|Motion\|||Frame 0||Frame 1||Compensation.OBMC v-------|--------------|--------------.\------> Frame n output Frame Frame<----------------------------------/|...|-------------------Range Coder:============Binary Range Coder:-------------------The implemented range coder is an adapted version based upon"Range encoding: an algorithm for removing redundancy from a digitised message."by G.N.N.Martin.The symbols encoded by the Snow range coder are bits(0|1).The associated probabilities are not fix but change depending on the symbol mix seen so far.bit seen|new state---------+-----------------------------------------------0|256-state_transition_table[256-old_state];1|state_transition_table[old_state];state_transition_table={0, 0, 0, 0, 0, 0, 0, 0, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 190, 191, 192, 194, 194, 195, 196, 197, 198, 199, 200, 201, 202, 202, 204, 205, 206, 207, 208, 209, 209, 210, 211, 212, 213, 215, 215, 216, 217, 218, 219, 220, 220, 222, 223, 224, 225, 226, 227, 227, 229, 229, 230, 231, 232, 234, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 248, 0, 0, 0, 0, 0, 0, 0};FIXME Range Coding of integers:-------------------------FIXME Neighboring Blocks:===================left and top are set to the respective blocks unless they are outside of the image in which case they are set to the Null block top-left is set to the top left block unless it is outside of the image in which case it is set to the left block if this block has no larger parent block or it is at the left side of its parent block and the top right block is not outside of the image then the top right block is used for top-right else the top-left block is used Null block y, cb, cr are 128 level, ref, mx and my are 0 Motion Vector Prediction:=========================1.the motion vectors of all the neighboring blocks are scaled to compensate for the difference of reference frames scaled_mv=(mv *(256 *(current_reference+1)/(mv.reference+1))+128)> the median of the scaled left
int num_corr
number of correction entries
static int ivi_scale_mv(int mv, int mv_scale)
scale motion vector
information for Indeo tile
static int ivi_process_empty_tile(AVCodecContext *avctx, const IVIBandDesc *band, IVITile *tile, int32_t mv_scale)
Handle empty tiles by performing data copying and motion compensation respectively.
static unsigned int get_bits1(GetBitContext *s)
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
IVIBandDesc * bands
array of band descriptors
int32_t checksum
for debug purposes
int rvmap_sel
rvmap table selector
int8_t mv_x
motion vector (x component)
int8_t mv_y
motion vector (y component)
#define IVI_TOSIGNED(val)
convert unsigned values into signed ones (the sign is in the LSB)
int mb_size
macroblock size
static av_cold void ivi_free_buffers(IVIPlaneDesc *planes)
huffman codebook descriptor
IVIMbInfo * ref_mbs
ptr to the macroblock descriptors of the reference tile
static void ivi_output_plane(IVIPlaneDesc *plane, uint8_t *dst, ptrdiff_t dst_pitch)
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
void(* ivi_mc_func)(int16_t *buf, const int16_t *ref_buf, ptrdiff_t pitch, int mc_type)
IVIHuffTab blk_vlc
current block table descriptor
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
common internal api header.
void ff_ivi_mc_avg_4x4_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
4x4 block motion compensation with adding delta
#define INIT_VLC_USE_NEW_STATIC
VLC cust_tab
custom Huffman codebook descriptor
int av_image_check_size2(unsigned int w, unsigned int h, int64_t max_pixels, enum AVPixelFormat pix_fmt, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of a plane of an image with...
const uint8_t * scan
ptr to the scan pattern
uint8_t has_transp
transparency mode status: 1 - enabled
static int ff_thread_once(char *control, void(*routine)(void))
VLC_TYPE(* table)[2]
code, bits
static const uint8_t * align_get_bits(GetBitContext *s)
void ff_ivi_mc_avg_4x4_no_delta(int16_t *buf, const int16_t *ref_buf, const int16_t *ref_buf2, ptrdiff_t pitch, int mc_type, int mc_type2)
4x4 block motion compensation without adding delta for B-frames
int(* decode_mb_info)(struct IVI45DecContext *ctx, IVIBandDesc *band, IVITile *tile, AVCodecContext *avctx)
and forward the result(frame or status change) to the corresponding input.If nothing is possible
information for Indeo macroblock (16x16, 8x8 or 4x4)
IVIHuffTab blk_vlc
vlc table for decoding block data
av_cold void ff_ivi_init_static_vlc(void)
Initialize static codes used for macroblock and block decoding.
const uint8_t * intra_scale
quantization coefficient for intra blocks
color plane (luma or chroma) information
#define FFSWAP(type, a, b)
uint32_t buf_offs
address in the output buffer for this mb
int b_ref_buf
second reference frame buffer index
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later.That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another.Frame references ownership and permissions
information for Indeo wavelet band
static double val(void *priv, double ch)
This structure stores compressed data.
void ff_free_vlc(VLC *vlc)
void * av_mallocz_array(size_t nmemb, size_t size)
int data_size
size of the data in bytes
#define INIT_VLC_OUTPUT_LE