51 #define FRAGMENT_PIXELS 8 60 #define SB_NOT_CODED 0 61 #define SB_PARTIALLY_CODED 1 62 #define SB_FULLY_CODED 2 67 #define MAXIMUM_LONG_BIT_RUN 4129 69 #define MODE_INTER_NO_MV 0 71 #define MODE_INTER_PLUS_MV 2 72 #define MODE_INTER_LAST_MV 3 73 #define MODE_INTER_PRIOR_LAST 4 74 #define MODE_USING_GOLDEN 5 75 #define MODE_GOLDEN_MV 6 76 #define MODE_INTER_FOURMV 7 77 #define CODING_MODE_COUNT 8 126 { 0, 0 }, { 1, 0 }, { 1, 1 }, { 0, 1 },
127 { 0, 2 }, { 0, 3 }, { 1, 3 }, { 1, 2 },
128 { 2, 2 }, { 2, 3 }, { 3, 3 }, { 3, 2 },
129 { 3, 1 }, { 2, 1 }, { 2, 0 }, { 3, 0 }
156 #define MIN_DEQUANT_VAL 2 202 int fragment_width[2];
203 int fragment_height[2];
206 int fragment_start[3];
212 int8_t (*motion_val[2])[2];
215 uint16_t coded_dc_scale_factor[2][64];
216 uint32_t coded_ac_scale_factor[64];
220 uint16_t qr_base[2][3][64];
239 int16_t *dct_tokens[3][64];
241 #define TOKEN_EOB(eob_run) ((eob_run) << 2) 242 #define TOKEN_ZERO_RUN(coeff, zero_run) (((coeff) * 512) + ((zero_run) << 2) + 1) 243 #define TOKEN_COEFF(coeff) (((coeff) * 4) + 2) 249 int num_coded_frags[3][64];
254 int *coded_fragment_list[3];
258 int num_kf_coded_fragment[3];
353 for (i = 0; i < 16; i++) {
366 for (j = 0; j < 2; j++)
367 for (i = 0; i < 7; i++)
370 for (i = 0; i < 2; i++)
384 int sb_x, sb_y,
plane;
387 for (plane = 0; plane < 3; plane++) {
395 for (sb_y = 0; sb_y < sb_height; sb_y++)
396 for (sb_x = 0; sb_x < sb_width; sb_x++)
397 for (i = 0; i < 16; i++) {
399 y = 4 * sb_y + hilbert_offset[
i][1];
401 if (x < frag_width && y < frag_height)
419 int i,
plane, inter, qri, bmi, bmj, qistart;
421 for (inter = 0; inter < 2; inter++) {
422 for (plane = 0; plane < 3; plane++) {
427 if (s->
qps[qpi] <= sum)
433 for (i = 0; i < 64; i++) {
437 (2 * s->
qr_size[inter][plane][qri]);
439 int qmin = 8 << (inter + !
i);
440 int qscale = i ? ac_scale_factor : dc_scale_factor;
441 int qbias = (1 + inter) * 3;
443 (i == 0 || s->
version < 2) ? av_clip((qscale * coeff) / 100 * 4, qmin, 4096)
444 : (qscale * (coeff - qbias) / 100 + qbias) * 4;
470 int superblock_starts[3] = {
474 int current_superblock = 0;
476 int num_partial_superblocks = 0;
479 int current_fragment;
481 int plane0_num_coded_frags = 0;
490 while (current_superblock < s->superblock_count &&
get_bits_left(gb) > 0) {
498 if (current_run == 34)
503 "Invalid partially coded superblock run length\n");
509 current_superblock += current_run;
511 num_partial_superblocks += current_run;
516 if (num_partial_superblocks < s->superblock_count) {
517 int superblocks_decoded = 0;
519 current_superblock = 0;
523 while (superblocks_decoded < s->superblock_count - num_partial_superblocks &&
532 if (current_run == 34)
535 for (j = 0; j < current_run; current_superblock++) {
538 "Invalid fully coded superblock run length\n");
548 superblocks_decoded += current_run;
554 if (num_partial_superblocks) {
571 for (plane = 0; plane < 3; plane++) {
572 int sb_start = superblock_starts[
plane];
575 int num_coded_frags = 0;
579 for (i = sb_start; i < sb_end; i++) {
581 for (j = 0; j < 16; j++) {
584 if (current_fragment != -1) {
594 for (i = sb_start; i < sb_end && get_bits_left(gb) > 0; i++) {
599 for (j = 0; j < 16; j++) {
602 if (current_fragment != -1) {
608 if (current_run-- == 0) {
632 plane0_num_coded_frags = num_coded_frags;
634 for (i = 0; i < 64; i++)
643 #define BLOCK_X (2 * mb_x + (k & 1)) 644 #define BLOCK_Y (2 * mb_y + (k >> 1)) 646 #if CONFIG_VP4_DECODER 655 while ((bits =
show_bits(gb, 9)) == 0x1ff) {
664 skip_bits(gb, 2 + n); \ 665 v += (1 << n) + get_bits(gb, n); } 666 #define thresh(n) (0x200 - (0x80 >> n)) 667 #define else_if(n) else if (bits < thresh(n)) body(n) 670 }
else if (bits < thresh(0)) {
692 *next_block_pattern_table = 0;
702 int next_block_pattern_table;
703 int bit, current_run, has_partial;
715 current_run = vp4_get_mb_count(s, gb);
727 current_run = vp4_get_mb_count(s, gb);
732 current_run = vp4_get_mb_count(s, gb);
742 next_block_pattern_table = 0;
744 for (plane = 0; plane < 3; plane++) {
753 for (sb_y = 0; sb_y < sb_height; sb_y++) {
754 for (sb_x = 0; sb_x < sb_width; sb_x++) {
755 for (j = 0; j < 4; j++) {
756 int mb_x = 2 * sb_x + (j >> 1);
757 int mb_y = 2 * sb_y + (j >> 1) ^ (j & 1);
758 int mb_coded, pattern, coded;
760 if (mb_x >= mb_width || mb_y >= mb_height)
768 pattern = vp4_get_block_pattern(s, gb, &next_block_pattern_table);
772 for (k = 0; k < 4; k++) {
776 coded = pattern & (8 >> k);
795 int i, j, k, sb_x, sb_y;
797 int current_macroblock;
798 int current_fragment;
813 for (i = 0; i < 8; i++)
815 for (i = 0; i < 8; i++)
816 custom_mode_alphabet[
get_bits(gb, 3)] =
i;
817 alphabet = custom_mode_alphabet;
828 for (j = 0; j < 4; j++) {
829 int mb_x = 2 * sb_x + (j >> 1);
830 int mb_y = 2 * sb_y + (((j >> 1) + j) & 1);
840 for (k = 0; k < 4; k++) {
858 for (k = 0; k < 4; k++) {
864 #define SET_CHROMA_MODES \ 865 if (frag[s->fragment_start[1]].coding_method != MODE_COPY) \ 866 frag[s->fragment_start[1]].coding_method = coding_mode; \ 867 if (frag[s->fragment_start[2]].coding_method != MODE_COPY) \ 868 frag[s->fragment_start[2]].coding_method = coding_mode; 877 for (k = 0; k < 2; k++) {
882 for (k = 0; k < 4; k++) {
899 return last_motion < 0 ? -v : v;
908 int j, k, sb_x, sb_y;
912 int last_motion_x = 0;
913 int last_motion_y = 0;
914 int prior_last_motion_x = 0;
915 int prior_last_motion_y = 0;
916 int last_gold_motion_x = 0;
917 int last_gold_motion_y = 0;
918 int current_macroblock;
919 int current_fragment;
935 for (j = 0; j < 4; j++) {
936 int mb_x = 2 * sb_x + (j >> 1);
937 int mb_y = 2 * sb_y + (((j >> 1) + j) & 1);
947 if (coding_mode == 2) {
948 last_gold_motion_x = motion_x[0] =
vp4_get_mv(s, gb, 0, last_gold_motion_x);
949 last_gold_motion_y = motion_y[0] =
vp4_get_mv(s, gb, 1, last_gold_motion_y);
954 if (coding_mode == 0) {
957 }
else if (coding_mode == 1) {
961 motion_x[0] =
vp4_get_mv(s, gb, 0, last_motion_x);
962 motion_y[0] =
vp4_get_mv(s, gb, 1, last_motion_y);
967 prior_last_motion_x = last_motion_x;
968 prior_last_motion_y = last_motion_y;
969 last_motion_x = motion_x[0];
970 last_motion_y = motion_y[0];
976 prior_last_motion_x = last_motion_x;
977 prior_last_motion_y = last_motion_y;
981 for (k = 0; k < 4; k++) {
984 if (coding_mode == 0) {
987 }
else if (coding_mode == 1) {
991 motion_x[k] =
vp4_get_mv(s, gb, 0, prior_last_motion_x);
992 motion_y[k] =
vp4_get_mv(s, gb, 1, prior_last_motion_y);
994 last_motion_x = motion_x[k];
995 last_motion_y = motion_y[k];
1005 motion_x[0] = last_motion_x;
1006 motion_y[0] = last_motion_y;
1015 motion_x[0] = prior_last_motion_x;
1016 motion_y[0] = prior_last_motion_y;
1019 prior_last_motion_x = last_motion_x;
1020 prior_last_motion_y = last_motion_y;
1021 last_motion_x = motion_x[0];
1022 last_motion_y = motion_y[0];
1035 for (k = 0; k < 4; k++) {
1039 s->
motion_val[0][current_fragment][0] = motion_x[k];
1040 s->
motion_val[0][current_fragment][1] = motion_y[k];
1042 s->
motion_val[0][current_fragment][0] = motion_x[0];
1043 s->
motion_val[0][current_fragment][1] = motion_y[0];
1049 motion_x[0] =
RSHIFT(motion_x[0] + motion_x[1] +
1050 motion_x[2] + motion_x[3], 2);
1051 motion_y[0] =
RSHIFT(motion_y[0] + motion_y[1] +
1052 motion_y[2] + motion_y[3], 2);
1055 motion_x[0] = (motion_x[0] >> 1) | (motion_x[0] & 1);
1056 motion_y[0] = (motion_y[0] >> 1) | (motion_y[0] & 1);
1063 motion_x[0] =
RSHIFT(motion_x[0] + motion_x[1], 1);
1064 motion_y[0] =
RSHIFT(motion_y[0] + motion_y[1], 1);
1065 motion_x[1] =
RSHIFT(motion_x[2] + motion_x[3], 1);
1066 motion_y[1] =
RSHIFT(motion_y[2] + motion_y[3], 1);
1068 motion_x[1] = motion_x[0];
1069 motion_y[1] = motion_y[0];
1072 motion_x[0] = (motion_x[0] >> 1) | (motion_x[0] & 1);
1073 motion_x[1] = (motion_x[1] >> 1) | (motion_x[1] & 1);
1076 for (k = 0; k < 2; k++) {
1082 for (k = 0; k < 4; k++) {
1102 int qpi,
i, j, bit, run_length, blocks_decoded, num_blocks_at_qpi;
1105 for (qpi = 0; qpi < s->
nqps - 1 && num_blocks > 0; qpi++) {
1106 i = blocks_decoded = num_blocks_at_qpi = 0;
1118 if (run_length == 34)
1120 blocks_decoded += run_length;
1123 num_blocks_at_qpi += run_length;
1125 for (j = 0; j < run_length; i++) {
1134 }
while (blocks_decoded < num_blocks &&
get_bits_left(gb) > 0);
1136 num_blocks -= num_blocks_at_qpi;
1152 int bits_to_get, zero_run;
1156 bits_to_get =
get_bits(gb, bits_to_get);
1197 if (num_coeffs < 0) {
1199 "Invalid number of coefficients at level %d\n", coeff_index);
1203 if (eob_run > num_coeffs) {
1205 blocks_ended = num_coeffs;
1206 eob_run -= num_coeffs;
1209 blocks_ended = eob_run;
1215 dct_tokens[j++] = blocks_ended << 2;
1219 token =
get_vlc2(gb, vlc_table, 11, 3);
1221 if ((
unsigned) token <= 6
U) {
1228 if (eob_run > num_coeffs - coeff_i) {
1229 dct_tokens[j++] =
TOKEN_EOB(num_coeffs - coeff_i);
1230 blocks_ended += num_coeffs - coeff_i;
1231 eob_run -= num_coeffs - coeff_i;
1232 coeff_i = num_coeffs;
1235 blocks_ended += eob_run;
1239 }
else if (token >= 0) {
1240 zero_run =
get_coeff(gb, token, &coeff);
1250 all_fragments[coded_fragment_list[coeff_i]].
dc =
coeff;
1255 if (coeff_index + zero_run > 64) {
1257 "Invalid zero run of %d with %d coeffs left\n",
1258 zero_run, 64 - coeff_index);
1259 zero_run = 64 - coeff_index;
1264 for (i = coeff_index + 1; i <= coeff_index + zero_run; i++)
1279 for (i = coeff_index + 1; i < 64; i++)
1284 s->
dct_tokens[plane + 1][coeff_index] = dct_tokens + j;
1285 else if (coeff_index < 63)
1286 s->
dct_tokens[0][coeff_index + 1] = dct_tokens + j;
1294 int fragment_height);
1306 int residual_eob_run = 0;
1321 0, residual_eob_run);
1322 if (residual_eob_run < 0)
1323 return residual_eob_run;
1332 1, residual_eob_run);
1333 if (residual_eob_run < 0)
1334 return residual_eob_run;
1336 2, residual_eob_run);
1337 if (residual_eob_run < 0)
1338 return residual_eob_run;
1355 for (i = 1; i <= 5; i++) {
1359 for (i = 6; i <= 14; i++) {
1363 for (i = 15; i <= 27; i++) {
1367 for (i = 28; i <= 63; i++) {
1373 for (i = 1; i <= 63; i++) {
1374 residual_eob_run =
unpack_vlcs(s, gb, y_tables[i], i,
1375 0, residual_eob_run);
1376 if (residual_eob_run < 0)
1377 return residual_eob_run;
1379 residual_eob_run =
unpack_vlcs(s, gb, c_tables[i], i,
1380 1, residual_eob_run);
1381 if (residual_eob_run < 0)
1382 return residual_eob_run;
1383 residual_eob_run =
unpack_vlcs(s, gb, c_tables[i], i,
1384 2, residual_eob_run);
1385 if (residual_eob_run < 0)
1386 return residual_eob_run;
1392 #if CONFIG_VP4_DECODER 1409 while (!eob_tracker[coeff_i]) {
1416 if ((
unsigned) token <= 6
U) {
1419 eob_tracker[coeff_i] = eob_run - 1;
1421 }
else if (token >= 0) {
1422 zero_run =
get_coeff(gb, token, &coeff);
1425 if (coeff_i + zero_run > 64) {
1427 "Invalid zero run of %d with %d coeffs left\n",
1428 zero_run, 64 - coeff_i);
1429 zero_run = 64 - coeff_i;
1432 coeff_i += zero_run;
1448 eob_tracker[coeff_i]--;
1462 for (i = 0; i < 4; i++)
1465 for (j = 1; j < 5; j++)
1466 for (i = 0; i < 4; i++)
1467 vp4_dc_predictor_reset(&dc_pred[j][i + 1]);
1474 for (i = 0; i < 4; i++)
1477 for (i = 1; i < 5; i++)
1478 dc_pred[i][0] = dc_pred[i][4];
1488 dc += dc_pred[-6].
dc;
1493 dc += dc_pred[6].
dc;
1497 if (count != 2 && dc_pred[-1].
type ==
type) {
1498 dc += dc_pred[-1].
dc;
1502 if (count != 2 && dc_pred[1].
type ==
type) {
1503 dc += dc_pred[1].
dc;
1508 return count == 2 ? dc / 2 : last_dc[
type];
1515 for (plane = 0; plane < 3; plane++) {
1516 for (i = 0; i < 64; i++) {
1531 int plane, sb_y, sb_x;
1532 int eob_tracker[64];
1548 tables[0][0] = &s->
dc_vlc[dc_y_table];
1549 tables[1][0] = &s->
dc_vlc[dc_c_table];
1550 for (i = 1; i <= 5; i++) {
1551 tables[0][
i] = &s->
ac_vlc_1[ac_y_table];
1552 tables[1][
i] = &s->
ac_vlc_1[ac_c_table];
1554 for (i = 6; i <= 14; i++) {
1555 tables[0][
i] = &s->
ac_vlc_2[ac_y_table];
1556 tables[1][
i] = &s->
ac_vlc_2[ac_c_table];
1558 for (i = 15; i <= 27; i++) {
1559 tables[0][
i] = &s->
ac_vlc_3[ac_y_table];
1560 tables[1][
i] = &s->
ac_vlc_3[ac_c_table];
1562 for (i = 28; i <= 63; i++) {
1563 tables[0][
i] = &s->
ac_vlc_4[ac_y_table];
1564 tables[1][
i] = &s->
ac_vlc_4[ac_c_table];
1567 vp4_set_tokens_base(s);
1569 memset(last_dc, 0,
sizeof(last_dc));
1572 memset(eob_tracker, 0,
sizeof(eob_tracker));
1578 for (j = 0; j < 6; j++)
1579 for (i = 0; i < 6; i++)
1580 vp4_dc_predictor_reset(&dc_pred[j][i]);
1584 vp4_dc_pred_before(s, dc_pred, sb_x);
1585 for (j = 0; j < 16; j++) {
1588 int x = 4 * sb_x + hx;
1589 int y = 4 * sb_y + hy;
1601 if (vp4_unpack_vlcs(s, gb, tables[!!plane], plane, eob_tracker, fragment) < 0)
1607 vp4_dc_pred(s, this_dc_pred, last_dc, dc_block_type, plane);
1609 this_dc_pred->
type = dc_block_type,
1612 vp4_dc_pred_after(s, dc_pred, sb_x);
1617 vp4_set_tokens_base(s);
1628 #define COMPATIBLE_FRAME(x) \ 1629 (compatible_frame[s->all_fragments[x].coding_method] == current_frame_type) 1630 #define DC_COEFF(u) s->all_fragments[u].dc 1635 int fragment_height)
1643 int i = first_fragment;
1648 int vl, vul, vu, vur;
1660 static const int predictor_transform[16][4] = {
1674 { -104, 116, 0, 116 },
1676 { -104, 116, 0, 116 }
1685 static const unsigned char compatible_frame[9] = {
1696 int current_frame_type;
1712 for (y = 0; y < fragment_height; y++) {
1714 for (x = 0; x < fragment_width; x++, i++) {
1718 current_frame_type =
1729 u = i - fragment_width;
1734 ul = i - fragment_width - 1;
1739 if (x + 1 < fragment_width) {
1740 ur = i - fragment_width + 1;
1747 if (transform == 0) {
1750 predicted_dc = last_dc[current_frame_type];
1754 (predictor_transform[
transform][0] * vul) +
1755 (predictor_transform[transform][1] * vu) +
1756 (predictor_transform[
transform][2] * vur) +
1757 (predictor_transform[transform][3] * vl);
1759 predicted_dc /= 128;
1763 if ((transform == 15) || (transform == 13)) {
1764 if (
FFABS(predicted_dc - vu) > 128)
1766 else if (
FFABS(predicted_dc - vl) > 128)
1768 else if (
FFABS(predicted_dc - vul) > 128)
1776 last_dc[current_frame_type] =
DC_COEFF(i);
1783 int ystart,
int yend)
1797 for (y = ystart; y < yend; y++) {
1798 for (x = 0; x <
width; x++) {
1808 stride, bounding_values);
1815 stride, bounding_values);
1821 if ((x < width - 1) &&
1824 plane_data + 8 * x + 8,
1825 stride, bounding_values);
1831 if ((y < height - 1) &&
1834 plane_data + 8 * x + 8 * stride,
1835 stride, bounding_values);
1841 plane_data += 8 *
stride;
1852 int16_t *dequantizer = s->
qmat[frag->
qpi][inter][
plane];
1858 switch (token & 3) {
1867 i += (token >> 2) & 0x7f;
1872 block[perm[
i]] = (token >> 9) * dequantizer[perm[i]];
1876 block[perm[
i]] = (token >> 2) * dequantizer[perm[i]];
1887 block[0] = frag->
dc * s->
qmat[0][inter][
plane][0];
1906 y_flipped == s->
height ? INT_MAX
1937 int motion_y,
int y)
1941 int border = motion_y & 1;
1949 ref_row = y + (motion_y >> 1);
1950 ref_row =
FFMAX(
FFABS(ref_row), ref_row + 8 + border);
1955 #if CONFIG_VP4_DECODER 1959 static int vp4_mc_loop_filter(
Vp3DecodeContext *s,
int plane,
int motion_x,
int motion_y,
int bx,
int by,
1962 int motion_shift =
plane ? 4 : 2;
1963 int subpel_mask =
plane ? 3 : 1;
1969 int x_subpel, y_subpel;
1970 int x_offset, y_offset;
1972 int block_width =
plane ? 8 : 16;
1976 #define loop_stride 12 1980 x = 8 * bx + motion_x / motion_shift;
1981 y = 8 * by + motion_y / motion_shift;
1983 x_subpel = motion_x & subpel_mask;
1984 y_subpel = motion_y & subpel_mask;
1986 if (x_subpel || y_subpel) {
1996 x2 = x + block_width;
1997 y2 = y + block_width;
1999 if (x2 < 0 || x2 >= plane_width || y2 < 0 || y2 >= plane_height)
2002 x_offset = (-(x + 2) & 7) + 2;
2003 y_offset = (-(y + 2) & 7) + 2;
2005 if (x_offset > 8 + x_subpel && y_offset > 8 + y_subpel)
2010 12, 12, src_x - 1, src_y - 1,
2014 if (x_offset <= 8 + x_subpel)
2017 if (y_offset <= 8 + y_subpel)
2025 if (!x_offset && !y_offset)
2030 12, 12, src_x - 1, src_y - 1,
2038 s->
vp3dsp.
v_loop_filter(loop + (y_offset + 1)*loop_stride + 1, loop_stride, bounding_values);
2041 for (i = 0; i < 9; i++)
2042 memcpy(temp + i*
stride, loop + (i + 1) * loop_stride + 1, 9);
2056 int motion_x = 0xdeadbeef, motion_y = 0xdeadbeef;
2057 int motion_halfpel_index;
2059 int plane, first_pixel;
2064 for (plane = 0; plane < 3; plane++) {
2094 for (; sb_y < slice_height; sb_y++) {
2096 for (sb_x = 0; sb_x < slice_width; sb_x++) {
2098 for (j = 0; j < 16; j++) {
2100 y = 4 * sb_y + hilbert_offset[j][1];
2101 fragment = y * fragment_width + x;
2103 i = fragment_start + fragment;
2106 if (x >= fragment_width || y >= fragment_height)
2109 first_pixel = 8 * y * stride + 8 * x;
2114 motion_val[fragment][1],
2121 motion_source = golden_plane;
2123 motion_source = last_plane;
2125 motion_source += first_pixel;
2126 motion_halfpel_index = 0;
2133 int standard_mc = 1;
2134 motion_x = motion_val[fragment][0];
2135 motion_y = motion_val[fragment][1];
2136 #if CONFIG_VP4_DECODER 2137 if (plane && s->
version >= 2) {
2138 motion_x = (motion_x >> 1) | (motion_x & 1);
2139 motion_y = (motion_y >> 1) | (motion_y & 1);
2143 src_x = (motion_x >> 1) + 8 * x;
2144 src_y = (motion_y >> 1) + 8 * y;
2146 motion_halfpel_index = motion_x & 0x01;
2147 motion_source += (motion_x >> 1);
2149 motion_halfpel_index |= (motion_y & 0x01) << 1;
2150 motion_source += ((motion_y >> 1) * stride);
2152 #if CONFIG_VP4_DECODER 2157 if (vp4_mc_loop_filter(s, plane, motion_val[fragment][0], motion_val[fragment][1], x, y, motion_source, stride, src_x, src_y, temp)) {
2158 motion_source =
temp;
2164 if (standard_mc && (
2165 src_x < 0 || src_y < 0 ||
2166 src_x + 9 >= plane_width ||
2167 src_y + 9 >= plane_height)) {
2177 motion_source =
temp;
2188 if (motion_halfpel_index != 3) {
2190 output_plane + first_pixel,
2191 motion_source,
stride, 8);
2195 int d = (motion_x ^ motion_y) >> 31;
2198 motion_source + stride + 1 + d,
2225 output_plane + first_pixel,
2226 last_plane + first_pixel,
2235 FFMIN(4 * sb_y + 3, fragment_height - 1));
2255 int y_fragment_count, c_fragment_count;
2268 memset(s-> num_kf_coded_fragment, -1,
sizeof(s-> num_kf_coded_fragment));
2315 int i, inter,
plane, ret;
2318 int y_fragment_count, c_fragment_count;
2319 #if CONFIG_VP4_DECODER 2346 for (i = 0; i < 64; i++) {
2347 #define TRANSPOSE(x) (((x) >> 3) | (((x) & 7) << 3)) 2355 for (i = 0; i < 3; i++)
2398 for (i = 0; i < 64; i++) {
2408 for (inter = 0; inter < 2; inter++) {
2409 for (plane = 0; plane < 3; plane++) {
2419 for (i = 0; i < 16; i++) {
2445 #if CONFIG_VP4_DECODER 2447 for (i = 0; i < 16; i++) {
2476 for (i = 0; i < 16; i++) {
2525 #if CONFIG_VP4_DECODER 2526 for (j = 0; j < 2; j++)
2527 for (i = 0; i < 7; i++)
2533 for (i = 0; i < 2; i++)
2572 if (src->
f->
data[0])
2590 int qps_changed = 0,
i, err;
2592 #define copy_fields(to, from, start_field, end_field) \ 2593 memcpy(&to->start_field, &from->start_field, \ 2594 (char *) &to->end_field - (char *) &to->start_field) 2596 if (!
s1->current_frame.f->data[0] ||
2608 int y_fragment_count, c_fragment_count;
2616 y_fragment_count *
sizeof(*s->
motion_val[0]));
2618 c_fragment_count *
sizeof(*s->
motion_val[1]));
2622 if ((err = ref_frames(s,
s1)) < 0)
2628 for (
i = 0;
i < 3;
i++) {
2629 if (s->
qps[
i] !=
s1->qps[1]) {
2635 if (s->
qps[0] !=
s1->qps[0])
2649 void *
data,
int *got_frame,
2654 int buf_size = avpkt->
size;
2662 #if CONFIG_THEORA_DECODER 2668 av_log(avctx,
AV_LOG_ERROR,
"midstream reconfiguration with multithreading is unsupported, try -threads 1\n");
2682 }
else if (type == 2) {
2695 "Header packet passed to frame decoder, skipping\n");
2707 for (i = 0; i < 3; i++)
2719 s->
keyframe ?
"key" :
"", avctx->frame_number + 1, s->
qps[0]);
2752 if (avctx->frame_number == 0)
2754 "VP version: %d\n", s->
version);
2760 "Warning, unsupported keyframe coding type?!\n");
2763 #if CONFIG_VP4_DECODER 2765 int mb_height, mb_width;
2766 int mb_width_mul, mb_width_div, mb_height_mul, mb_height_div;
2778 if (mb_width_mul != 1 || mb_width_div != 1 || mb_height_mul != 1 || mb_height_div != 1)
2789 "vp3: first frame not a keyframe\n");
2811 #if CONFIG_VP4_DECODER 2813 if (vp4_unpack_macroblocks(s, &gb)) {
2837 #if CONFIG_VP4_DECODER 2839 if (vp4_unpack_dct_coeffs(s, &gb)) {
2846 for (
i = 0;
i < 3;
i++) {
2860 for (
i = 0;
i < 3;
i++) {
2905 ff_dlog(avctx,
"hti %d hbits %x token %d entry : %d size %d\n",
2936 s-> kf_coded_fragment_list=
NULL;
2950 #if CONFIG_THEORA_DECODER 2958 int visible_width, visible_height, colorspace;
2959 uint8_t offset_x = 0, offset_y = 0;
2973 if (s->
theora < 0x030200) {
2976 "Old (<alpha3) Theora bitstream, flipped image\n");
2984 if (s->
theora >= 0x030200) {
2994 visible_width + offset_x > s->
width ||
2995 visible_height + offset_y > s->
height) {
2997 "Invalid frame dimensions - w:%d h:%d x:%d y:%d (%dx%d).\n",
2998 visible_width, visible_height, offset_x, offset_y,
3005 if (fps.
num && fps.
den) {
3006 if (fps.
num < 0 || fps.
den < 0) {
3011 fps.
den, fps.
num, 1 << 30);
3016 if (aspect.
num && aspect.
den) {
3019 aspect.
num, aspect.
den, 1 << 30);
3023 if (s->
theora < 0x030200)
3030 if (s->
theora >= 0x030200) {
3045 avctx->
width = visible_width;
3046 avctx->
height = visible_height;
3053 if (colorspace == 1)
3055 else if (colorspace == 2)
3058 if (colorspace == 1 || colorspace == 2) {
3070 int i,
n, matrices, inter,
plane;
3075 if (s->
theora >= 0x030200) {
3079 for (i = 0; i < 64; i++)
3083 if (s->
theora >= 0x030200)
3088 for (i = 0; i < 64; i++)
3091 if (s->
theora >= 0x030200)
3096 for (i = 0; i < 64; i++)
3100 if (s->
theora >= 0x030200)
3105 if (matrices > 384) {
3110 for (n = 0; n < matrices; n++)
3111 for (i = 0; i < 64; i++)
3114 for (inter = 0; inter <= 1; inter++) {
3115 for (plane = 0; plane <= 2; plane++) {
3117 if (inter || plane > 0)
3125 qtj = (3 * inter + plane - 1) / 3;
3126 plj = (plane + 2) % 3;
3139 if (i >= matrices) {
3141 "invalid base matrix index\n");
3162 for (s->
hti = 0; s->
hti < 80; s->
hti++) {
3185 const uint8_t *header_start[3];
3200 42, header_start, header_len) < 0) {
3205 for (i = 0; i < 3; i++) {
3206 if (header_len[i] <= 0)
3214 if (!(ptype & 0x80)) {
3237 "Unknown Theora config packet: %d\n", ptype & ~0x80);
3242 "%d bits left in packet %X\n",
3244 if (s->
theora < 0x030200)
3257 .
init = theora_decode_init,
3285 #if CONFIG_VP4_DECODER
av_cold void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
uint8_t idct_scantable[64]
discard all frames except keyframes
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
#define AV_NUM_DATA_POINTERS
int16_t qmat[3][2][3][64]
qmat[qpi][is_inter][plane]
static int init_block_mapping(Vp3DecodeContext *s)
This function sets up all of the various blocks mappings: superblocks <-> fragments, macroblocks <-> fragments, superblocks <-> macroblocks.
#define copy_fields(s, e)
This structure describes decoded (raw) audio or video data.
#define TOKEN_EOB(eob_run)
static void render_slice(Vp3DecodeContext *s, int slice)
static const uint16_t vp4_dc_bias[16][32][2]
static void flush(AVCodecContext *avctx)
int bounding_values_array[256+2]
int coded_width
Bitstream width / height, may be different from width/height e.g.
void(* put_no_rnd_pixels_l2)(uint8_t *dst, const uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h)
Copy 8xH pixels from source to destination buffer using a bilinear filter with no rounding (i...
static const int8_t vp31_intra_c_dequant[64]
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
#define AV_LOG_WARNING
Something somehow does not look correct.
static int init_thread_copy(AVCodecContext *avctx)
static int get_coeff(GetBitContext *gb, int token, int16_t *coeff)
uint16_t qr_base[2][3][64]
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 av_cold int init(AVCodecContext *avctx)
static int theora_decode_tables(AVCodecContext *avctx, GetBitContext *gb)
static const uint16_t fragment_run_length_vlc_table[30][2]
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM / IEC 61966-2-4 xvYCC601 ...
#define avpriv_request_sample(...)
#define MODE_INTER_PLUS_MV
static const int8_t vp31_intra_y_dequant[64]
static av_cold int init_frames(Vp3DecodeContext *s)
AVRational sample_aspect_ratio
sample aspect ratio (0 if unknown) That is the width of a pixel divided by the height of the pixel...
static int unpack_modes(Vp3DecodeContext *s, GetBitContext *gb)
static const uint8_t zero_run_base[32]
void(* v_loop_filter)(uint8_t *src, ptrdiff_t stride, int *bounding_values)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static av_cold int vp3_decode_init(AVCodecContext *avctx)
static const uint8_t coeff_get_bits[32]
int num_kf_coded_fragment[3]
static int theora_decode_header(AVCodecContext *avctx, GetBitContext *gb)
static int unpack_superblocks(Vp3DecodeContext *s, GetBitContext *gb)
static const uint16_t vp4_ac_scale_factor[64]
static void reverse_dc_prediction(Vp3DecodeContext *s, int first_fragment, int fragment_width, int fragment_height)
static av_cold int vp3_decode_end(AVCodecContext *avctx)
#define init_vlc(vlc, nb_bits, nb_codes, bits, bits_wrap, bits_size, codes, codes_wrap, codes_size, flags)
void ff_thread_await_progress(ThreadFrame *f, int n, int field)
Wait for earlier decoding threads to finish reference pictures.
static const uint16_t vp4_ac_bias_0[16][32][2]
int * superblock_fragments
VLC superblock_run_length_vlc
#define MAXIMUM_LONG_BIT_RUN
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
static const uint16_t ac_bias_3[16][32][2]
void(* draw_horiz_band)(struct AVCodecContext *s, const AVFrame *src, int offset[AV_NUM_DATA_POINTERS], int y, int type, int height)
If non NULL, 'draw_horiz_band' is called by the libavcodec decoder to draw a horizontal band...
static const uint16_t dc_bias[16][32][2]
Vp3Fragment * all_fragments
static void init_loop_filter(Vp3DecodeContext *s)
#define COMPATIBLE_FRAME(x)
void(* emulated_edge_mc)(uint8_t *dst, const uint8_t *src, ptrdiff_t dst_linesize, ptrdiff_t src_linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Copy a rectangular area of samples to a temporary buffer and replicate the border samples...
static int unpack_vectors(Vp3DecodeContext *s, GetBitContext *gb)
AVFrame * av_frame_alloc(void)
Allocate an AVFrame and set its fields to default values.
#define TOKEN_ZERO_RUN(coeff, zero_run)
#define FF_DEBUG_PICT_INFO
static int vp3_dequant(Vp3DecodeContext *s, Vp3Fragment *frag, int plane, int inter, int16_t block[64])
Pull DCT tokens from the 64 levels to decode and dequant the coefficients for the next block in codin...
static av_cold int end(AVCodecContext *avctx)
static int FUNC() huffman_table(CodedBitstreamContext *ctx, RWContext *rw, JPEGRawHuffmanTable *current)
Multithreading support functions.
uint8_t idct_permutation[64]
int av_frame_ref(AVFrame *dst, const AVFrame *src)
Set up a new reference to the data described by the source frame.
static void init_dequantizer(Vp3DecodeContext *s, int qpi)
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
static void output_plane(const Plane *plane, int buf_sel, uint8_t *dst, ptrdiff_t dst_pitch, int dst_height)
Convert and output the current plane.
#define u(width, name, range_min, range_max)
static void vp3_decode_flush(AVCodecContext *avctx)
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
uint8_t filter_limit_values[64]
static int get_bits_count(const GetBitContext *s)
int ff_thread_ref_frame(ThreadFrame *dst, ThreadFrame *src)
int ff_set_sar(AVCodecContext *avctx, AVRational sar)
Check that the provided sample aspect ratio is valid and set it on the codec context.
bitstream reader API header.
int av_reduce(int *dst_num, int *dst_den, int64_t num, int64_t den, int64_t max)
Reduce a fraction.
void ff_thread_finish_setup(AVCodecContext *avctx)
If the codec defines update_thread_context(), call this when they are ready for the next thread to st...
#define AV_CODEC_FLAG_GRAY
Only decode/encode grayscale.
static const uint8_t mode_code_vlc_table[8][2]
enum AVChromaLocation chroma_sample_location
This defines the location of chroma samples.
static int unpack_dct_coeffs(Vp3DecodeContext *s, GetBitContext *gb)
static const uint16_t table[]
static void body(uint32_t ABCD[4], const uint8_t *src, int nblocks)
static const uint16_t ac_bias_1[16][32][2]
static const uint8_t vp4_pred_block_type_map[8]
static int get_bits_left(GetBitContext *gb)
static int vp3_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static const uint8_t motion_vector_vlc_table[63][2]
also FCC Title 47 Code of Federal Regulations 73.682 (a)(20)
#define i(width, name, range_min, range_max)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define AV_CODEC_FLAG2_IGNORE_CROP
Discard cropping information from SPS.
void ff_thread_release_buffer(AVCodecContext *avctx, ThreadFrame *f)
Wrapper around release_buffer() frame-for multithreaded codecs.
int is_copy
Whether the parent AVCodecContext is a copy of the context which had init() called on it...
static const struct @180 eob_run_table[7]
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define CODING_MODE_COUNT
int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift)
Utility function to access log2_chroma_w log2_chroma_h from the pixel format AVPixFmtDescriptor.
void(* idct_add)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
int active_thread_type
Which multithreading methods are in use by the codec.
static const int8_t fixed_motion_vector_table[64]
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
int flags
AV_CODEC_FLAG_*.
void(* h_loop_filter)(uint8_t *src, ptrdiff_t stride, int *bounding_values)
AVCodec ff_theora_decoder
static av_cold void free_tables(AVCodecContext *avctx)
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
const char * name
Name of the codec implementation.
static const uint8_t offset[127][2]
uint16_t coded_dc_scale_factor[2][64]
static const int ModeAlphabet[6][CODING_MODE_COUNT]
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
#define FF_CODEC_CAP_EXPORTS_CROPPING
The decoder sets the cropping fields in the output frames manually.
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
#define ONLY_IF_THREADS_ENABLED(x)
Define a function with only the non-default version specified.
av_cold void ff_hpeldsp_init(HpelDSPContext *c, int flags)
static const int16_t *const coeff_tables[32]
unsigned char * macroblock_coding
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
#define AV_CODEC_CAP_DRAW_HORIZ_BAND
Decoder can use draw_horiz_band callback.
enum AVPictureType pict_type
Picture type of the frame.
#define AV_CODEC_FLAG_BITEXACT
Use only bitexact stuff (except (I)DCT).
#define FF_THREAD_FRAME
Decode more than one frame at once.
VLC fragment_run_length_vlc
int width
picture width / height.
#define SB_PARTIALLY_CODED
static int unpack_vlcs(Vp3DecodeContext *s, GetBitContext *gb, VLC *table, int coeff_index, int plane, int eob_run)
also ITU-R BT601-6 625 / ITU-R BT1358 625 / ITU-R BT1700 625 PAL & SECAM
void ff_thread_report_progress(ThreadFrame *f, int n, int field)
Notify later decoding threads when part of their reference picture is ready.
uint8_t * edge_emu_buffer
static const uint8_t vp4_mv_table_selector[32]
static const uint16_t vp4_ac_bias_3[16][32][2]
enum AVColorPrimaries color_primaries
Chromaticity coordinates of the source primaries.
static unsigned int show_bits(GetBitContext *s, int n)
Show 1-25 bits.
static const uint16_t vp31_ac_scale_factor[64]
static const int8_t motion_vector_table[63]
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
int avpriv_split_xiph_headers(const uint8_t *extradata, int extradata_size, int first_header_size, const uint8_t *header_start[3], int header_len[3])
Split a single extradata buffer into the three headers that most Xiph codecs use. ...
static av_always_inline int get_vlc2(GetBitContext *s, VLC_TYPE(*table)[2], int bits, int max_depth)
Parse a vlc code.
static const uint16_t ac_bias_2[16][32][2]
static const uint8_t hilbert_offset[16][2]
static const uint8_t vp4_y_dc_scale_factor[64]
void ff_vp3dsp_h_loop_filter_12(uint8_t *first_pixel, ptrdiff_t stride, int *bounding_values)
static void error(const char *err)
int total_num_coded_frags
void(* idct_dc_add)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
static void apply_loop_filter(Vp3DecodeContext *s, int plane, int ystart, int yend)
static const int8_t transform[32][32]
static const uint8_t vp4_filter_limit_values[64]
#define AV_LOG_INFO
Standard information.
static const uint8_t vp4_block_pattern_table_selector[14]
Libavcodec external API header.
static const uint16_t ac_bias_0[16][32][2]
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
int16_t * dct_tokens[3][64]
This is a list of all tokens in bitstream order.
static int init_get_bits8(GetBitContext *s, const uint8_t *buffer, int byte_size)
Initialize GetBitContext.
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
ThreadFrame current_frame
main external API structure.
static const uint8_t vp4_generic_dequant[64]
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
uint8_t qr_size[2][3][64]
op_pixels_func put_pixels_tab[4][4]
Halfpel motion compensation with rounding (a+b+1)>>1.
static av_cold int allocate_tables(AVCodecContext *avctx)
Allocate tables for per-frame data in Vp3DecodeContext.
static unsigned int get_bits1(GetBitContext *s)
op_pixels_func put_no_rnd_pixels_tab[4][4]
Halfpel motion compensation with no rounding (a+b)>>1.
static void skip_bits(GetBitContext *s, int n)
enum AVColorSpace colorspace
YUV colorspace type.
Rational number (pair of numerator and denominator).
enum AVColorTransferCharacteristic color_trc
Color Transfer Characteristic.
int * nkf_coded_fragment_list
const uint8_t ff_zigzag_direct[64]
int num_coded_frags[3][64]
number of blocks that contain DCT coefficients at the given level or higher
#define TOKEN_COEFF(coeff)
static int vp4_get_mv(Vp3DecodeContext *s, GetBitContext *gb, int axis, int last_motion)
static VLC_TYPE vlc_tables[VLC_TABLES_SIZE][2]
static const uint8_t vp31_dc_scale_factor[64]
int allocate_progress
Whether to allocate progress for frame threading.
static unsigned int get_bits_long(GetBitContext *s, int n)
Read 0-32 bits.
static int read_huffman_tree(AVCodecContext *avctx, GetBitContext *gb)
static int update_frames(AVCodecContext *avctx)
Release and shuffle frames after decode finishes.
static const uint16_t superblock_run_length_vlc_table[34][2]
#define MODE_USING_GOLDEN
uint32_t huffman_table[80][32][2]
void av_frame_unref(AVFrame *frame)
Unreference all the buffers referenced by frame and reset the frame fields.
#define MODE_INTER_FOURMV
static const uint8_t vp4_uv_dc_scale_factor[64]
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
static const uint8_t vp4_block_pattern_vlc[2][14][2]
static int theora_header(AVFormatContext *s, int idx)
static const uint16_t vp4_ac_bias_2[16][32][2]
void ff_vp3dsp_v_loop_filter_12(uint8_t *first_pixel, ptrdiff_t stride, int *bounding_values)
int * coded_fragment_list[3]
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
unsigned char * superblock_coding
common internal api header.
int16_t * dct_tokens_base
static const int8_t vp31_inter_dequant[64]
static int get_eob_run(GetBitContext *gb, int token)
static const uint16_t vp4_ac_bias_1[16][32][2]
Core video DSP helper functions.
uint8_t base_matrix[384][64]
void ff_vp3dsp_set_bounding_values(int *bounding_values_array, int filter_limit)
static int unpack_block_qpis(Vp3DecodeContext *s, GetBitContext *gb)
int * kf_coded_fragment_list
static void await_reference_row(Vp3DecodeContext *s, Vp3Fragment *fragment, int motion_y, int y)
Wait for the reference frame of the current fragment.
struct AVCodecInternal * internal
Private context used for internal data.
VLC_TYPE(* table)[2]
code, bits
int key_frame
1 -> keyframe, 0-> not
static const double coeff[2][5]
int flags2
AV_CODEC_FLAG2_*.
#define MODE_INTER_PRIOR_LAST
static ConstTables tables[2][NB_SUBBANDS]
VP4Predictor * dc_pred_row
static const uint16_t vp4_mv_vlc[2][7][63][2]
#define AV_LOG_FATAL
Something went wrong and recovery is not possible.
MPEG-1 4:2:0, JPEG 4:2:0, H.263 4:2:0.
#define MODE_INTER_LAST_MV
#define av_malloc_array(a, b)
void(* idct_put)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
av_cold void ff_vp3dsp_init(VP3DSPContext *c, int flags)
static const uint8_t vp31_filter_limit_values[64]
#define MKTAG(a, b, c, d)
AVPixelFormat
Pixel format.
This structure stores compressed data.
static void vp3_draw_horiz_band(Vp3DecodeContext *s, int y)
called when all pixels up to row y are complete
void ff_free_vlc(VLC *vlc)
#define AV_GET_BUFFER_FLAG_REF
The decoder will keep a reference to the frame and may reuse it later.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
uint32_t coded_ac_scale_factor[64]
static const uint8_t zero_run_get_bits[32]
void * av_mallocz_array(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
int8_t(*[2] motion_val)[2]