38 #define BITSTREAM_READER_LE
54 #define QDM2_LIST_ADD(list, size, packet) \
57 list[size - 1].next = &list[size]; \
59 list[size].packet = packet; \
60 list[size].next = NULL; \
65 #define QDM2_SB_USED(sub_sampling) (((sub_sampling) >= 2) ? 30 : 8 << (sub_sampling))
67 #define FIX_NOISE_IDX(noise_idx) \
68 if ((noise_idx) >= 3840) \
69 (noise_idx) -= 3840; \
71 #define SB_DITHERING_NOISE(sb,noise_idx) (noise_table[(noise_idx)++] * sb_noise_attenuation[(sb)])
73 #define SAMPLES_NEEDED \
74 av_log (NULL,AV_LOG_INFO,"This file triggers some untested code. Please contact the developers.\n");
76 #define SAMPLES_NEEDED_2(why) \
77 av_log (NULL,AV_LOG_INFO,"This file triggers some missing code. Please contact the developers.\nPosition: %s\n",why);
79 #define QDM2_MAX_FRAME_SIZE 512
162 int fft_coefs_min_index[5];
163 int fft_coefs_max_index[5];
164 int fft_level_exp[6];
216 0,260,566,598,894,1166,1230,1294,1678,1950,2214,2278,2310,2570,2834,3124,3448,3838,
220 0, 5, 1, 5, 5, 5, 5, 5, 2, 5, 5, 5, 5, 5, 5, 5, 3, 5, 5, 5, 5, 5, 4
225 static VLC_TYPE qdm2_table[3838][2];
234 vlc_tab_diff.
table = &qdm2_table[qdm2_vlc_offs[1]];
241 vlc_tab_run.
table = &qdm2_table[qdm2_vlc_offs[2]];
248 fft_level_exp_alt_vlc.
table = &qdm2_table[qdm2_vlc_offs[3]];
251 init_vlc(&fft_level_exp_alt_vlc, 8, 28,
256 fft_level_exp_vlc.
table = &qdm2_table[qdm2_vlc_offs[4]];
257 fft_level_exp_vlc.
table_allocated = qdm2_vlc_offs[5] - qdm2_vlc_offs[4];
263 fft_stereo_exp_vlc.
table = &qdm2_table[qdm2_vlc_offs[5]];
271 fft_stereo_phase_vlc.
table = &qdm2_table[qdm2_vlc_offs[6]];
274 init_vlc(&fft_stereo_phase_vlc, 6, 9,
279 vlc_tab_tone_level_idx_hi1.
table =
280 &qdm2_table[qdm2_vlc_offs[7]];
283 init_vlc(&vlc_tab_tone_level_idx_hi1, 8, 20,
288 vlc_tab_tone_level_idx_mid.
table =
289 &qdm2_table[qdm2_vlc_offs[8]];
292 init_vlc(&vlc_tab_tone_level_idx_mid, 8, 24,
297 vlc_tab_tone_level_idx_hi2.
table =
298 &qdm2_table[qdm2_vlc_offs[9]];
301 init_vlc(&vlc_tab_tone_level_idx_hi2, 8, 24,
306 vlc_tab_type30.
table = &qdm2_table[qdm2_vlc_offs[10]];
307 vlc_tab_type30.
table_allocated = qdm2_vlc_offs[11] - qdm2_vlc_offs[10];
313 vlc_tab_type34.
table = &qdm2_table[qdm2_vlc_offs[11]];
314 vlc_tab_type34.
table_allocated = qdm2_vlc_offs[12] - qdm2_vlc_offs[11];
320 vlc_tab_fft_tone_offset[0].
table =
321 &qdm2_table[qdm2_vlc_offs[12]];
324 init_vlc(&vlc_tab_fft_tone_offset[0], 8, 23,
329 vlc_tab_fft_tone_offset[1].
table =
330 &qdm2_table[qdm2_vlc_offs[13]];
333 init_vlc(&vlc_tab_fft_tone_offset[1], 8, 28,
338 vlc_tab_fft_tone_offset[2].
table =
339 &qdm2_table[qdm2_vlc_offs[14]];
342 init_vlc(&vlc_tab_fft_tone_offset[2], 8, 32,
347 vlc_tab_fft_tone_offset[3].
table =
348 &qdm2_table[qdm2_vlc_offs[15]];
351 init_vlc(&vlc_tab_fft_tone_offset[3], 8, 35,
356 vlc_tab_fft_tone_offset[4].
table =
357 &qdm2_table[qdm2_vlc_offs[16]];
360 init_vlc(&vlc_tab_fft_tone_offset[4], 8, 38,
380 if ((value & ~3) > 0)
392 return (value & 1) ? ((value + 1) >> 1) : -(value >> 1);
408 for (i = 0; i < length; i++)
411 return (uint16_t)(value & 0xffff);
425 if (sub_packet->
type == 0) {
426 sub_packet->
size = 0;
431 if (sub_packet->
type & 0x80) {
432 sub_packet->
size <<= 8;
434 sub_packet->
type &= 0x7f;
437 if (sub_packet->
type == 0x7f)
474 int i, j, n, ch, sum;
479 for (i = 0; i < n; i++) {
482 for (j = 0; j < 8; j++)
489 for (j = 0; j < 8; j++)
511 for (j = 0; j < 64; j++) {
535 for (ch = 0; ch < channels; ch++) {
536 for (j = 0; j < 64; ) {
537 if (coding_method[ch][sb][j] < 8)
539 if ((coding_method[ch][sb][j] - 8) > 22) {
543 switch (
switchtable[coding_method[ch][sb][j] - 8]) {
567 for (k = 0; k <
run; k++) {
569 if (coding_method[ch][sb + (j + k) / 64][(j + k) % 64] > coding_method[ch][sb][j]) {
573 memset(&coding_method[ch][sb][j + k], case_val,
575 memset(&coding_method[ch][sb][j + k], case_val,
596 int i, sb, ch, sb_used;
600 for (sb = 0; sb < 30; sb++)
601 for (i = 0; i < 8; i++) {
615 for (sb = 0; sb < sb_used; sb++)
617 for (i = 0; i < 64; i++) {
626 for (sb = 0; sb < sb_used; sb++) {
627 if ((sb >= 4) && (sb <= 23)) {
629 for (i = 0; i < 64; i++) {
643 for (i = 0; i < 64; i++) {
655 for (i = 0; i < 64; i++) {
687 int c,
int superblocktype_2_3,
692 int add1, add2, add3, add4;
695 if (!superblocktype_2_3) {
699 for (sb = 0; sb < 30; sb++) {
700 for (j = 1; j < 63; j++) {
701 add1 = tone_level_idx[ch][sb][j] - 10;
704 add2 = add3 = add4 = 0;
720 tmp = tone_level_idx[ch][sb][j + 1] * 2 - add4 - add3 - add2 - add1;
723 tone_level_idx_temp[ch][sb][j + 1] = tmp & 0xff;
725 tone_level_idx_temp[ch][sb][0] = tone_level_idx_temp[ch][sb][1];
729 for (sb = 0; sb < 30; sb++)
730 for (j = 0; j < 64; j++)
731 acc += tone_level_idx_temp[ch][sb][j];
733 multres = 0x66666667 * (acc * 10);
734 esp_40 = (multres >> 32) / 8 + ((multres & 0xffffffff) >> 31);
736 for (sb = 0; sb < 30; sb++)
737 for (j = 0; j < 64; j++) {
738 comp = tone_level_idx_temp[ch][sb][j]* esp_40 * 10;
769 coding_method[ch][sb][j] = ((tmp & 0xfffa) + 30 )& 0xff;
771 for (sb = 0; sb < 30; sb++)
774 for (sb = 0; sb < 30; sb++)
775 for (j = 0; j < 64; j++)
777 if (coding_method[ch][sb][j] < 10)
778 coding_method[ch][sb][j] = 10;
781 if (coding_method[ch][sb][j] < 16)
782 coding_method[ch][sb][j] = 16;
784 if (coding_method[ch][sb][j] < 30)
785 coding_method[ch][sb][j] = 30;
790 for (sb = 0; sb < 30; sb++)
791 for (j = 0; j < 64; j++)
810 int length,
int sb_min,
int sb_max)
812 int sb, j, k, n, ch,
run, channels;
813 int joined_stereo, zero_encoding;
815 float type34_div = 0;
816 float type34_predictor;
817 float samples[10], sign_bits[16];
821 for (sb=sb_min; sb < sb_max; sb++)
827 for (sb = sb_min; sb < sb_max; sb++) {
839 for (j = 0; j < 16; j++)
842 for (j = 0; j < 64; j++)
854 for (ch = 0; ch < channels; ch++) {
857 type34_predictor = 0.0;
860 for (j = 0; j < 128; ) {
865 for (k = 0; k < 5; k++) {
866 if ((j + 2 * k) >= 128)
872 for (k = 0; k < 5; k++)
875 for (k = 0; k < 5; k++)
878 for (k = 0; k < 10; k++)
890 f -=
noise_samples[((sb + 1) * (j +5 * ch + 1)) & 127] * 9.0 / 40.0;
901 for (k = 0; k < 5; k++) {
908 for (k = 0; k < 5; k++)
912 for (k = 0; k < 5; k++)
921 for (k = 0; k < 3; k++)
924 for (k = 0; k < 3; k++)
946 type34_div = (float)(1 <<
get_bits(gb, 2));
947 samples[0] = ((float)
get_bits(gb, 5) - 16.0) / 15.0;
948 type34_predictor = samples[0];
954 type34_predictor = samples[0];
971 for (k = 0; k < run && j + k < 128; k++) {
973 q->
tone_level[0][sb][(j + k) / 2] * samples[k];
975 if (sign_bits[(j + k) / 8])
977 q->
tone_level[1][sb][(j + k) / 2] * -samples[k];
980 q->
tone_level[1][sb][(j + k) / 2] * samples[k];
984 for (k = 0; k <
run; k++)
1014 quantized_coeffs[0] =
level;
1016 for (i = 0; i < 7; ) {
1025 for (k = 1; k <=
run; k++)
1026 quantized_coeffs[i + k] = (level + ((k * diff) / run));
1044 int sb, j, k, n, ch;
1057 for (sb = 0; sb < n; sb++)
1059 for (j = 0; j < 8; j++) {
1063 for (k=0; k < 8; k++) {
1069 for (k=0; k < 8; k++)
1076 for (sb = 0; sb < n; sb++)
1084 for (j = 0; j < 8; j++)
1090 for (sb = 0; sb < n; sb++)
1092 for (j = 0; j < 8; j++) {
1108 int i, j, k, n, ch,
run,
level, diff;
1114 for (i = 1; i < n; i++)
1119 for (j = 0; j < (8 - 1); ) {
1123 for (k = 1; k <=
run; k++)
1132 for (i = 0; i < 8; i++)
1214 if (nodes[0] !=
NULL)
1218 if (nodes[1] !=
NULL)
1224 if (nodes[0] !=
NULL && nodes[1] !=
NULL && nodes[2] !=
NULL)
1230 if (nodes[0] !=
NULL && nodes[1] !=
NULL && nodes[3] !=
NULL)
1245 int i, packet_bytes, sub_packet_size, sub_packets_D;
1246 unsigned int next_index = 0;
1260 if (header.
type < 2 || header.
type >= 8) {
1271 if (header.
type == 2 || header.
type == 4 || header.
type == 5) {
1287 for (i = 0; i < 6; i++)
1291 for (i = 0; packet_bytes > 0; i++) {
1308 if (next_index >= header.
size)
1316 sub_packet_size = ((packet->
size > 0xff) ? 1 : 0) + packet->
size + 2;
1318 if (packet->
type == 0)
1321 if (sub_packet_size > packet_bytes) {
1322 if (packet->
type != 10 && packet->
type != 11 && packet->
type != 12)
1324 packet->
size += packet_bytes - sub_packet_size;
1327 packet_bytes -= sub_packet_size;
1333 if (packet->
type == 8) {
1336 }
else if (packet->
type >= 9 && packet->
type <= 12) {
1339 }
else if (packet->
type == 13) {
1340 for (j = 0; j < 6; j++)
1342 }
else if (packet->
type == 14) {
1343 for (j = 0; j < 6; j++)
1345 }
else if (packet->
type == 15) {
1348 }
else if (packet->
type >= 16 && packet->
type < 48 &&
1366 int offset,
int duration,
int channel,
1373 ((sub_packet >= 16) ? (sub_packet - 16) : sub_packet);
1384 int channel, stereo, phase, exp;
1385 int local_int_4, local_int_8, stereo_phase, local_int_10;
1386 int local_int_14, stereo_exp, local_int_20, local_int_28;
1393 local_int_10 = 1 << (q->
group_order - duration - 1);
1398 while ((n =
qdm2_get_vlc(gb, &vlc_tab_fft_tone_offset[local_int_8], 1, 2)) < 2) {
1401 local_int_4 += local_int_10;
1402 local_int_28 += (1 << local_int_8);
1404 local_int_4 += 8 * local_int_10;
1405 local_int_28 += (8 << local_int_8);
1410 offset +=
qdm2_get_vlc(gb, &vlc_tab_fft_tone_offset[local_int_8], 1, 2);
1411 while (offset >= (local_int_10 - 1)) {
1412 offset += (1 - (local_int_10 - 1));
1413 local_int_4 += local_int_10;
1414 local_int_28 += (1 << local_int_8);
1421 local_int_14 = (offset >> local_int_8);
1433 exp =
qdm2_get_vlc(gb, (b ? &fft_level_exp_vlc : &fft_level_exp_alt_vlc), 0, 2);
1435 exp = (exp < 0) ? 0 : exp;
1442 stereo_exp = (exp -
qdm2_get_vlc(gb, &fft_stereo_exp_vlc, 0, 1));
1443 stereo_phase = (phase -
qdm2_get_vlc(gb, &fft_stereo_phase_vlc, 0, 1));
1444 if (stereo_phase < 0)
1449 int sub_packet = (local_int_20 + local_int_28);
1452 channel, exp, phase);
1456 stereo_exp, stereo_phase);
1464 int i, j,
min, max, value, type, unknown_flag;
1472 for (i = 0; i < 5; i++)
1482 if (value > min && value < max) {
1495 (packet->
type < 16 || packet->
type >= 48 ||
1507 type = packet->
type;
1509 if ((type >= 17 && type < 24) || (type >= 33 && type < 40)) {
1512 if (duration >= 0 && duration < 4)
1514 }
else if (type == 31) {
1515 for (j = 0; j < 4; j++)
1517 }
else if (type == 46) {
1518 for (j = 0; j < 6; j++)
1520 for (j = 0; j < 4; j++)
1526 for (i = 0, j = -1; i < 5; i++)
1541 const double iscale = 2.0 * M_PI / 512.0;
1547 c.
im = level * sin(tone->
phase * iscale);
1548 c.
re = level * cos(tone->
phase * iscale);
1557 f[1] = -tone->
table[4];
1559 f[2] = 1.0 - tone->
table[2] - tone->
table[3];
1560 f[3] = tone->
table[1] + tone->
table[4] - 1.0;
1562 f[5] = tone->
table[2];
1563 for (i = 0; i < 2; i++) {
1567 c.
im * ((tone->
cutoff <= i) ? -f[i] : f[i]);
1569 for (i = 0; i < 4; i++) {
1585 const double iscale = 0.25 * M_PI;
1587 for (ch = 0; ch < q->
channels; ch++) {
1619 for (i = 0; i < 4; i++)
1632 if (offset < q->frequency_range) {
1636 tone.
cutoff = (offset >= 60) ? 3 : 2;
1675 int i, k, ch, sb_used, sub_sampling, dither_state = 0;
1680 for (ch = 0; ch < q->
channels; ch++)
1681 for (i = 0; i < 8; i++)
1682 for (k = sb_used; k <
SBLIMIT; k++)
1686 float *samples_ptr = q->
samples + ch;
1688 for (i = 0; i < 8; i++) {
1701 for (ch = 0; ch < q->
channels; ch++)
1727 int tmp_val, tmp,
size;
1771 while (extradata_size > 7) {
1772 if (!memcmp(extradata,
"frmaQDM", 7))
1778 if (extradata_size < 12) {
1784 if (memcmp(extradata,
"frmaQDM", 7)) {
1789 if (extradata[7] ==
'C') {
1796 extradata_size -= 8;
1800 if(size > extradata_size){
1802 extradata_size, size);
1852 case 0: tmp = 40;
break;
1853 case 1: tmp = 48;
break;
1854 case 2: tmp = 56;
break;
1855 case 3: tmp = 72;
break;
1856 case 4: tmp = 80;
break;
1857 case 5: tmp = 100;
break;
1861 if ((tmp * 1000) < avctx->
bit_rate) tmp_val = 1;
1862 if ((tmp * 1440) < avctx->
bit_rate) tmp_val = 2;
1863 if ((tmp * 1760) < avctx->
bit_rate) tmp_val = 3;
1864 if ((tmp * 2240) < avctx->
bit_rate) tmp_val = 4;
1878 else if (tmp <= 16000)
1921 memset(&q->
output_buffer[frame_size], 0, frame_size *
sizeof(
float));
1939 for (ch = 0; ch < q->
channels; ch++) {
1970 int *got_frame_ptr,
AVPacket *avpkt)
1974 int buf_size = avpkt->
size;
1981 if(buf_size < s->checksum_size)
1990 out = (int16_t *)frame->
data[0];
1992 for (i = 0; i < 16; i++) {