38 #define BITSTREAM_READER_LE
55 #define QDM2_LIST_ADD(list, size, packet) \
58 list[size - 1].next = &list[size]; \
60 list[size].packet = packet; \
61 list[size].next = NULL; \
66 #define QDM2_SB_USED(sub_sampling) (((sub_sampling) >= 2) ? 30 : 8 << (sub_sampling))
68 #define FIX_NOISE_IDX(noise_idx) \
69 if ((noise_idx) >= 3840) \
70 (noise_idx) -= 3840; \
72 #define SB_DITHERING_NOISE(sb,noise_idx) (noise_table[(noise_idx)++] * sb_noise_attenuation[(sb)])
74 #define SAMPLES_NEEDED \
75 av_log (NULL,AV_LOG_INFO,"This file triggers some untested code. Please contact the developers.\n");
77 #define SAMPLES_NEEDED_2(why) \
78 av_log (NULL,AV_LOG_INFO,"This file triggers some missing code. Please contact the developers.\nPosition: %s\n",why);
80 #define QDM2_MAX_FRAME_SIZE 512
165 int fft_coefs_min_index[5];
166 int fft_coefs_max_index[5];
167 int fft_level_exp[6];
219 0,260,566,598,894,1166,1230,1294,1678,1950,2214,2278,2310,2570,2834,3124,3448,3838,
223 0, 5, 1, 5, 5, 5, 5, 5, 2, 5, 5, 5, 5, 5, 5, 5, 3, 5, 5, 5, 5, 5, 4
228 static VLC_TYPE qdm2_table[3838][2];
237 vlc_tab_diff.
table = &qdm2_table[qdm2_vlc_offs[1]];
244 vlc_tab_run.
table = &qdm2_table[qdm2_vlc_offs[2]];
251 fft_level_exp_alt_vlc.
table = &qdm2_table[qdm2_vlc_offs[3]];
254 init_vlc(&fft_level_exp_alt_vlc, 8, 28,
259 fft_level_exp_vlc.
table = &qdm2_table[qdm2_vlc_offs[4]];
260 fft_level_exp_vlc.
table_allocated = qdm2_vlc_offs[5] - qdm2_vlc_offs[4];
266 fft_stereo_exp_vlc.
table = &qdm2_table[qdm2_vlc_offs[5]];
274 fft_stereo_phase_vlc.
table = &qdm2_table[qdm2_vlc_offs[6]];
277 init_vlc(&fft_stereo_phase_vlc, 6, 9,
282 vlc_tab_tone_level_idx_hi1.
table =
283 &qdm2_table[qdm2_vlc_offs[7]];
286 init_vlc(&vlc_tab_tone_level_idx_hi1, 8, 20,
291 vlc_tab_tone_level_idx_mid.
table =
292 &qdm2_table[qdm2_vlc_offs[8]];
295 init_vlc(&vlc_tab_tone_level_idx_mid, 8, 24,
300 vlc_tab_tone_level_idx_hi2.
table =
301 &qdm2_table[qdm2_vlc_offs[9]];
304 init_vlc(&vlc_tab_tone_level_idx_hi2, 8, 24,
309 vlc_tab_type30.
table = &qdm2_table[qdm2_vlc_offs[10]];
310 vlc_tab_type30.
table_allocated = qdm2_vlc_offs[11] - qdm2_vlc_offs[10];
316 vlc_tab_type34.
table = &qdm2_table[qdm2_vlc_offs[11]];
317 vlc_tab_type34.
table_allocated = qdm2_vlc_offs[12] - qdm2_vlc_offs[11];
323 vlc_tab_fft_tone_offset[0].
table =
324 &qdm2_table[qdm2_vlc_offs[12]];
327 init_vlc(&vlc_tab_fft_tone_offset[0], 8, 23,
332 vlc_tab_fft_tone_offset[1].
table =
333 &qdm2_table[qdm2_vlc_offs[13]];
336 init_vlc(&vlc_tab_fft_tone_offset[1], 8, 28,
341 vlc_tab_fft_tone_offset[2].
table =
342 &qdm2_table[qdm2_vlc_offs[14]];
345 init_vlc(&vlc_tab_fft_tone_offset[2], 8, 32,
350 vlc_tab_fft_tone_offset[3].
table =
351 &qdm2_table[qdm2_vlc_offs[15]];
354 init_vlc(&vlc_tab_fft_tone_offset[3], 8, 35,
359 vlc_tab_fft_tone_offset[4].
table =
360 &qdm2_table[qdm2_vlc_offs[16]];
363 init_vlc(&vlc_tab_fft_tone_offset[4], 8, 38,
383 if ((value & ~3) > 0)
395 return (value & 1) ? ((value + 1) >> 1) : -(value >> 1);
411 for (i = 0; i < length; i++)
414 return (uint16_t)(value & 0xffff);
428 if (sub_packet->
type == 0) {
429 sub_packet->
size = 0;
434 if (sub_packet->
type & 0x80) {
435 sub_packet->
size <<= 8;
437 sub_packet->
type &= 0x7f;
440 if (sub_packet->
type == 0x7f)
477 int i, j, n, ch, sum;
482 for (i = 0; i < n; i++) {
485 for (j = 0; j < 8; j++)
492 for (j = 0; j < 8; j++)
514 for (j = 0; j < 64; j++) {
538 for (ch = 0; ch < channels; ch++) {
539 for (j = 0; j < 64; ) {
540 if (coding_method[ch][sb][j] < 8)
542 if ((coding_method[ch][sb][j] - 8) > 22) {
546 switch (
switchtable[coding_method[ch][sb][j] - 8]) {
570 for (k = 0; k <
run; k++) {
572 if (coding_method[ch][sb + (j + k) / 64][(j + k) % 64] > coding_method[ch][sb][j]) {
576 memset(&coding_method[ch][sb][j + k], case_val,
578 memset(&coding_method[ch][sb][j + k], case_val,
599 int i, sb, ch, sb_used;
603 for (sb = 0; sb < 30; sb++)
604 for (i = 0; i < 8; i++) {
618 for (sb = 0; sb < sb_used; sb++)
620 for (i = 0; i < 64; i++) {
629 for (sb = 0; sb < sb_used; sb++) {
630 if ((sb >= 4) && (sb <= 23)) {
632 for (i = 0; i < 64; i++) {
646 for (i = 0; i < 64; i++) {
658 for (i = 0; i < 64; i++) {
690 int c,
int superblocktype_2_3,
695 int add1, add2, add3, add4;
698 if (!superblocktype_2_3) {
702 for (sb = 0; sb < 30; sb++) {
703 for (j = 1; j < 63; j++) {
704 add1 = tone_level_idx[ch][sb][j] - 10;
707 add2 = add3 = add4 = 0;
723 tmp = tone_level_idx[ch][sb][j + 1] * 2 - add4 - add3 - add2 - add1;
726 tone_level_idx_temp[ch][sb][j + 1] = tmp & 0xff;
728 tone_level_idx_temp[ch][sb][0] = tone_level_idx_temp[ch][sb][1];
732 for (sb = 0; sb < 30; sb++)
733 for (j = 0; j < 64; j++)
734 acc += tone_level_idx_temp[ch][sb][j];
736 multres = 0x66666667 * (acc * 10);
737 esp_40 = (multres >> 32) / 8 + ((multres & 0xffffffff) >> 31);
739 for (sb = 0; sb < 30; sb++)
740 for (j = 0; j < 64; j++) {
741 comp = tone_level_idx_temp[ch][sb][j]* esp_40 * 10;
772 coding_method[ch][sb][j] = ((tmp & 0xfffa) + 30 )& 0xff;
774 for (sb = 0; sb < 30; sb++)
777 for (sb = 0; sb < 30; sb++)
778 for (j = 0; j < 64; j++)
780 if (coding_method[ch][sb][j] < 10)
781 coding_method[ch][sb][j] = 10;
784 if (coding_method[ch][sb][j] < 16)
785 coding_method[ch][sb][j] = 16;
787 if (coding_method[ch][sb][j] < 30)
788 coding_method[ch][sb][j] = 30;
793 for (sb = 0; sb < 30; sb++)
794 for (j = 0; j < 64; j++)
813 int length,
int sb_min,
int sb_max)
815 int sb, j, k, n, ch,
run, channels;
816 int joined_stereo, zero_encoding;
818 float type34_div = 0;
819 float type34_predictor;
820 float samples[10], sign_bits[16];
824 for (sb=sb_min; sb < sb_max; sb++)
830 for (sb = sb_min; sb < sb_max; sb++) {
842 for (j = 0; j < 16; j++)
845 for (j = 0; j < 64; j++)
857 for (ch = 0; ch < channels; ch++) {
860 type34_predictor = 0.0;
863 for (j = 0; j < 128; ) {
868 for (k = 0; k < 5; k++) {
869 if ((j + 2 * k) >= 128)
875 for (k = 0; k < 5; k++)
878 for (k = 0; k < 5; k++)
881 for (k = 0; k < 10; k++)
893 f -=
noise_samples[((sb + 1) * (j +5 * ch + 1)) & 127] * 9.0 / 40.0;
904 for (k = 0; k < 5; k++) {
911 for (k = 0; k < 5; k++)
915 for (k = 0; k < 5; k++)
924 for (k = 0; k < 3; k++)
927 for (k = 0; k < 3; k++)
949 type34_div = (float)(1 <<
get_bits(gb, 2));
950 samples[0] = ((float)
get_bits(gb, 5) - 16.0) / 15.0;
951 type34_predictor = samples[0];
957 type34_predictor = samples[0];
974 for (k = 0; k < run && j + k < 128; k++) {
976 q->
tone_level[0][sb][(j + k) / 2] * samples[k];
978 if (sign_bits[(j + k) / 8])
980 q->
tone_level[1][sb][(j + k) / 2] * -samples[k];
983 q->
tone_level[1][sb][(j + k) / 2] * samples[k];
987 for (k = 0; k <
run; k++)
1017 quantized_coeffs[0] =
level;
1019 for (i = 0; i < 7; ) {
1028 for (k = 1; k <=
run; k++)
1029 quantized_coeffs[i + k] = (level + ((k * diff) / run));
1047 int sb, j, k, n, ch;
1060 for (sb = 0; sb < n; sb++)
1062 for (j = 0; j < 8; j++) {
1066 for (k=0; k < 8; k++) {
1072 for (k=0; k < 8; k++)
1079 for (sb = 0; sb < n; sb++)
1087 for (j = 0; j < 8; j++)
1093 for (sb = 0; sb < n; sb++)
1095 for (j = 0; j < 8; j++) {
1111 int i, j, k, n, ch,
run,
level, diff;
1117 for (i = 1; i < n; i++)
1122 for (j = 0; j < (8 - 1); ) {
1126 for (k = 1; k <=
run; k++)
1135 for (i = 0; i < 8; i++)
1217 if (nodes[0] !=
NULL)
1221 if (nodes[1] !=
NULL)
1227 if (nodes[0] !=
NULL && nodes[1] !=
NULL && nodes[2] !=
NULL)
1233 if (nodes[0] !=
NULL && nodes[1] !=
NULL && nodes[3] !=
NULL)
1248 int i, packet_bytes, sub_packet_size, sub_packets_D;
1249 unsigned int next_index = 0;
1263 if (header.
type < 2 || header.
type >= 8) {
1274 if (header.
type == 2 || header.
type == 4 || header.
type == 5) {
1290 for (i = 0; i < 6; i++)
1294 for (i = 0; packet_bytes > 0; i++) {
1311 if (next_index >= header.
size)
1319 sub_packet_size = ((packet->
size > 0xff) ? 1 : 0) + packet->
size + 2;
1321 if (packet->
type == 0)
1324 if (sub_packet_size > packet_bytes) {
1325 if (packet->
type != 10 && packet->
type != 11 && packet->
type != 12)
1327 packet->
size += packet_bytes - sub_packet_size;
1330 packet_bytes -= sub_packet_size;
1336 if (packet->
type == 8) {
1339 }
else if (packet->
type >= 9 && packet->
type <= 12) {
1342 }
else if (packet->
type == 13) {
1343 for (j = 0; j < 6; j++)
1345 }
else if (packet->
type == 14) {
1346 for (j = 0; j < 6; j++)
1348 }
else if (packet->
type == 15) {
1351 }
else if (packet->
type >= 16 && packet->
type < 48 &&
1369 int offset,
int duration,
int channel,
1376 ((sub_packet >= 16) ? (sub_packet - 16) : sub_packet);
1387 int channel, stereo, phase, exp;
1388 int local_int_4, local_int_8, stereo_phase, local_int_10;
1389 int local_int_14, stereo_exp, local_int_20, local_int_28;
1396 local_int_10 = 1 << (q->
group_order - duration - 1);
1401 while ((n =
qdm2_get_vlc(gb, &vlc_tab_fft_tone_offset[local_int_8], 1, 2)) < 2) {
1404 local_int_4 += local_int_10;
1405 local_int_28 += (1 << local_int_8);
1407 local_int_4 += 8 * local_int_10;
1408 local_int_28 += (8 << local_int_8);
1413 offset +=
qdm2_get_vlc(gb, &vlc_tab_fft_tone_offset[local_int_8], 1, 2);
1414 while (offset >= (local_int_10 - 1)) {
1415 offset += (1 - (local_int_10 - 1));
1416 local_int_4 += local_int_10;
1417 local_int_28 += (1 << local_int_8);
1424 local_int_14 = (offset >> local_int_8);
1436 exp =
qdm2_get_vlc(gb, (b ? &fft_level_exp_vlc : &fft_level_exp_alt_vlc), 0, 2);
1438 exp = (exp < 0) ? 0 : exp;
1445 stereo_exp = (exp -
qdm2_get_vlc(gb, &fft_stereo_exp_vlc, 0, 1));
1446 stereo_phase = (phase -
qdm2_get_vlc(gb, &fft_stereo_phase_vlc, 0, 1));
1447 if (stereo_phase < 0)
1452 int sub_packet = (local_int_20 + local_int_28);
1455 channel, exp, phase);
1459 stereo_exp, stereo_phase);
1467 int i, j,
min, max, value, type, unknown_flag;
1475 for (i = 0; i < 5; i++)
1485 if (value > min && value < max) {
1498 (packet->
type < 16 || packet->
type >= 48 ||
1510 type = packet->
type;
1512 if ((type >= 17 && type < 24) || (type >= 33 && type < 40)) {
1515 if (duration >= 0 && duration < 4)
1517 }
else if (type == 31) {
1518 for (j = 0; j < 4; j++)
1520 }
else if (type == 46) {
1521 for (j = 0; j < 6; j++)
1523 for (j = 0; j < 4; j++)
1529 for (i = 0, j = -1; i < 5; i++)
1544 const double iscale = 2.0 * M_PI / 512.0;
1550 c.
im = level * sin(tone->
phase * iscale);
1551 c.
re = level * cos(tone->
phase * iscale);
1560 f[1] = -tone->
table[4];
1562 f[2] = 1.0 - tone->
table[2] - tone->
table[3];
1563 f[3] = tone->
table[1] + tone->
table[4] - 1.0;
1565 f[5] = tone->
table[2];
1566 for (i = 0; i < 2; i++) {
1570 c.
im * ((tone->
cutoff <= i) ? -f[i] : f[i]);
1572 for (i = 0; i < 4; i++) {
1588 const double iscale = 0.25 * M_PI;
1590 for (ch = 0; ch < q->
channels; ch++) {
1622 for (i = 0; i < 4; i++)
1635 if (offset < q->frequency_range) {
1639 tone.
cutoff = (offset >= 60) ? 3 : 2;
1678 int i, k, ch, sb_used, sub_sampling, dither_state = 0;
1683 for (ch = 0; ch < q->
channels; ch++)
1684 for (i = 0; i < 8; i++)
1685 for (k = sb_used; k <
SBLIMIT; k++)
1689 float *samples_ptr = q->
samples + ch;
1691 for (i = 0; i < 8; i++) {
1704 for (ch = 0; ch < q->
channels; ch++)
1730 int tmp_val, tmp,
size;
1774 while (extradata_size > 7) {
1775 if (!memcmp(extradata,
"frmaQDM", 7))
1781 if (extradata_size < 12) {
1787 if (memcmp(extradata,
"frmaQDM", 7)) {
1792 if (extradata[7] ==
'C') {
1799 extradata_size -= 8;
1803 if(size > extradata_size){
1805 extradata_size, size);
1855 case 0: tmp = 40;
break;
1856 case 1: tmp = 48;
break;
1857 case 2: tmp = 56;
break;
1858 case 3: tmp = 72;
break;
1859 case 4: tmp = 80;
break;
1860 case 5: tmp = 100;
break;
1864 if ((tmp * 1000) < avctx->
bit_rate) tmp_val = 1;
1865 if ((tmp * 1440) < avctx->
bit_rate) tmp_val = 2;
1866 if ((tmp * 1760) < avctx->
bit_rate) tmp_val = 3;
1867 if ((tmp * 2240) < avctx->
bit_rate) tmp_val = 4;
1881 else if (tmp <= 16000)
1927 memset(&q->
output_buffer[frame_size], 0, frame_size *
sizeof(
float));
1945 for (ch = 0; ch < q->
channels; ch++) {
1976 int *got_frame_ptr,
AVPacket *avpkt)
1979 int buf_size = avpkt->
size;
1986 if(buf_size < s->checksum_size)
1997 for (i = 0; i < 16; i++) {