38 #define BITSTREAM_READER_LE
53 #define QDM2_LIST_ADD(list, size, packet) \
56 list[size - 1].next = &list[size]; \
58 list[size].packet = packet; \
59 list[size].next = NULL; \
64 #define QDM2_SB_USED(sub_sampling) (((sub_sampling) >= 2) ? 30 : 8 << (sub_sampling))
66 #define FIX_NOISE_IDX(noise_idx) \
67 if ((noise_idx) >= 3840) \
68 (noise_idx) -= 3840; \
70 #define SB_DITHERING_NOISE(sb,noise_idx) (noise_table[(noise_idx)++] * sb_noise_attenuation[(sb)])
72 #define BITS_LEFT(length,gb) ((length) - get_bits_count ((gb)))
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
166 int fft_coefs_min_index[5];
167 int fft_coefs_max_index[5];
168 int fft_level_exp[6];
222 0,260,566,598,894,1166,1230,1294,1678,1950,2214,2278,2310,2570,2834,3124,3448,3838,
227 static int vlcs_initialized = 0;
228 static VLC_TYPE qdm2_table[3838][2];
230 if (!vlcs_initialized) {
238 vlc_tab_diff.
table = &qdm2_table[qdm2_vlc_offs[1]];
244 vlc_tab_run.
table = &qdm2_table[qdm2_vlc_offs[2]];
250 fft_level_exp_alt_vlc.
table = &qdm2_table[qdm2_vlc_offs[3]];
251 fft_level_exp_alt_vlc.
table_allocated = qdm2_vlc_offs[4] - qdm2_vlc_offs[3];
252 init_vlc (&fft_level_exp_alt_vlc, 8, 28,
257 fft_level_exp_vlc.
table = &qdm2_table[qdm2_vlc_offs[4]];
258 fft_level_exp_vlc.
table_allocated = qdm2_vlc_offs[5] - qdm2_vlc_offs[4];
259 init_vlc (&fft_level_exp_vlc, 8, 20,
263 fft_stereo_exp_vlc.
table = &qdm2_table[qdm2_vlc_offs[5]];
264 fft_stereo_exp_vlc.
table_allocated = qdm2_vlc_offs[6] - qdm2_vlc_offs[5];
265 init_vlc (&fft_stereo_exp_vlc, 6, 7,
269 fft_stereo_phase_vlc.
table = &qdm2_table[qdm2_vlc_offs[6]];
270 fft_stereo_phase_vlc.
table_allocated = qdm2_vlc_offs[7] - qdm2_vlc_offs[6];
271 init_vlc (&fft_stereo_phase_vlc, 6, 9,
275 vlc_tab_tone_level_idx_hi1.
table = &qdm2_table[qdm2_vlc_offs[7]];
276 vlc_tab_tone_level_idx_hi1.
table_allocated = qdm2_vlc_offs[8] - qdm2_vlc_offs[7];
277 init_vlc (&vlc_tab_tone_level_idx_hi1, 8, 20,
281 vlc_tab_tone_level_idx_mid.
table = &qdm2_table[qdm2_vlc_offs[8]];
282 vlc_tab_tone_level_idx_mid.
table_allocated = qdm2_vlc_offs[9] - qdm2_vlc_offs[8];
283 init_vlc (&vlc_tab_tone_level_idx_mid, 8, 24,
287 vlc_tab_tone_level_idx_hi2.
table = &qdm2_table[qdm2_vlc_offs[9]];
288 vlc_tab_tone_level_idx_hi2.
table_allocated = qdm2_vlc_offs[10] - qdm2_vlc_offs[9];
289 init_vlc (&vlc_tab_tone_level_idx_hi2, 8, 24,
293 vlc_tab_type30.
table = &qdm2_table[qdm2_vlc_offs[10]];
294 vlc_tab_type30.
table_allocated = qdm2_vlc_offs[11] - qdm2_vlc_offs[10];
299 vlc_tab_type34.
table = &qdm2_table[qdm2_vlc_offs[11]];
300 vlc_tab_type34.
table_allocated = qdm2_vlc_offs[12] - qdm2_vlc_offs[11];
305 vlc_tab_fft_tone_offset[0].
table = &qdm2_table[qdm2_vlc_offs[12]];
306 vlc_tab_fft_tone_offset[0].
table_allocated = qdm2_vlc_offs[13] - qdm2_vlc_offs[12];
307 init_vlc (&vlc_tab_fft_tone_offset[0], 8, 23,
311 vlc_tab_fft_tone_offset[1].
table = &qdm2_table[qdm2_vlc_offs[13]];
312 vlc_tab_fft_tone_offset[1].
table_allocated = qdm2_vlc_offs[14] - qdm2_vlc_offs[13];
313 init_vlc (&vlc_tab_fft_tone_offset[1], 8, 28,
317 vlc_tab_fft_tone_offset[2].
table = &qdm2_table[qdm2_vlc_offs[14]];
318 vlc_tab_fft_tone_offset[2].
table_allocated = qdm2_vlc_offs[15] - qdm2_vlc_offs[14];
319 init_vlc (&vlc_tab_fft_tone_offset[2], 8, 32,
323 vlc_tab_fft_tone_offset[3].
table = &qdm2_table[qdm2_vlc_offs[15]];
324 vlc_tab_fft_tone_offset[3].
table_allocated = qdm2_vlc_offs[16] - qdm2_vlc_offs[15];
325 init_vlc (&vlc_tab_fft_tone_offset[3], 8, 35,
329 vlc_tab_fft_tone_offset[4].
table = &qdm2_table[qdm2_vlc_offs[16]];
330 vlc_tab_fft_tone_offset[4].
table_allocated = qdm2_vlc_offs[17] - qdm2_vlc_offs[16];
331 init_vlc (&vlc_tab_fft_tone_offset[4], 8, 38,
353 if ((value & ~3) > 0)
366 return (value & 1) ? ((value + 1) >> 1) : -(value >> 1);
382 for (i=0; i < length; i++)
385 return (uint16_t)(value & 0xffff);
399 if (sub_packet->
type == 0) {
400 sub_packet->
size = 0;
405 if (sub_packet->
type & 0x80) {
406 sub_packet->
size <<= 8;
408 sub_packet->
type &= 0x7f;
411 if (sub_packet->
type == 0x7f)
448 int i, j, n, ch, sum;
453 for (i = 0; i < n; i++) {
456 for (j = 0; j < 8; j++)
463 for (j=0; j < 8; j++)
486 for (j = 0; j < 64; j++) {
507 int switchtable[23] = {0,5,1,5,5,5,5,5,2,5,5,5,5,5,5,5,3,5,5,5,5,5,4};
509 for (ch = 0; ch < channels; ch++) {
510 for (j = 0; j < 64; ) {
511 if (coding_method[ch][sb][j] < 8)
513 if ((coding_method[ch][sb][j] - 8) > 22) {
517 switch (switchtable[coding_method[ch][sb][j]-8]) {
518 case 0: run = 10; case_val = 10;
break;
519 case 1: run = 1; case_val = 16;
break;
520 case 2: run = 5; case_val = 24;
break;
521 case 3: run = 3; case_val = 30;
break;
522 case 4: run = 1; case_val = 30;
break;
523 case 5: run = 1; case_val = 8;
break;
524 default: run = 1; case_val = 8;
break;
527 for (k = 0; k <
run; k++)
529 if (coding_method[ch][sb + (j + k) / 64][(j + k) % 64] > coding_method[ch][sb][j])
533 memset(&coding_method[ch][sb][j + k], case_val, k *
sizeof(int8_t));
534 memset(&coding_method[ch][sb][j + k], case_val, 3 *
sizeof(int8_t));
552 int i, sb, ch, sb_used;
560 for (sb = 0; sb < 30; sb++)
561 for (i = 0; i < 8; i++) {
575 for (sb = 0; sb < sb_used; sb++)
577 for (i = 0; i < 64; i++) {
586 for (sb = 0; sb < sb_used; sb++) {
587 if ((sb >= 4) && (sb <= 23)) {
589 for (i = 0; i < 64; i++) {
603 for (i = 0; i < 64; i++) {
615 for (i = 0; i < 64; i++) {
647 int c,
int superblocktype_2_3,
int cm_table_select)
651 int add1, add2, add3, add4;
655 if (nb_channels <= 0)
658 if (!superblocktype_2_3) {
662 for (sb = 0; sb < 30; sb++) {
663 for (j = 1; j < 63; j++) {
664 add1 = tone_level_idx[ch][sb][j] - 10;
667 add2 = add3 = add4 = 0;
683 tmp = tone_level_idx[ch][sb][j + 1] * 2 - add4 - add3 - add2 - add1;
686 tone_level_idx_temp[ch][sb][j + 1] = tmp & 0xff;
688 tone_level_idx_temp[ch][sb][0] = tone_level_idx_temp[ch][sb][1];
692 for (sb = 0; sb < 30; sb++)
693 for (j = 0; j < 64; j++)
694 acc += tone_level_idx_temp[ch][sb][j];
696 multres = 0x66666667 * (acc * 10);
697 esp_40 = (multres >> 32) / 8 + ((multres & 0xffffffff) >> 31);
699 for (sb = 0; sb < 30; sb++)
700 for (j = 0; j < 64; j++) {
701 comp = tone_level_idx_temp[ch][sb][j]* esp_40 * 10;
732 coding_method[ch][sb][j] = ((tmp & 0xfffa) + 30 )& 0xff;
734 for (sb = 0; sb < 30; sb++)
737 for (sb = 0; sb < 30; sb++)
738 for (j = 0; j < 64; j++)
740 if (coding_method[ch][sb][j] < 10)
741 coding_method[ch][sb][j] = 10;
744 if (coding_method[ch][sb][j] < 16)
745 coding_method[ch][sb][j] = 16;
747 if (coding_method[ch][sb][j] < 30)
748 coding_method[ch][sb][j] = 30;
753 for (sb = 0; sb < 30; sb++)
754 for (j = 0; j < 64; j++)
775 int sb, j, k, n, ch,
run, channels;
776 int joined_stereo, zero_encoding;
778 float type34_div = 0;
779 float type34_predictor;
780 float samples[10], sign_bits[16];
784 for (sb=sb_min; sb < sb_max; sb++)
790 for (sb = sb_min; sb < sb_max; sb++) {
802 for (j = 0; j < 16; j++)
805 for (j = 0; j < 64; j++)
817 for (ch = 0; ch < channels; ch++) {
820 type34_predictor = 0.0;
823 for (j = 0; j < 128; ) {
828 for (k = 0; k < 5; k++) {
829 if ((j + 2 * k) >= 128)
835 for (k = 0; k < 5; k++)
838 for (k = 0; k < 5; k++)
841 for (k = 0; k < 10; k++)
853 f -=
noise_samples[((sb + 1) * (j +5 * ch + 1)) & 127] * 9.0 / 40.0;
864 for (k = 0; k < 5; k++) {
871 for (k = 0; k < 5; k++)
875 for (k = 0; k < 5; k++)
884 for (k = 0; k < 3; k++)
887 for (k = 0; k < 3; k++)
909 type34_div = (float)(1 <<
get_bits(gb, 2));
910 samples[0] = ((float)
get_bits(gb, 5) - 16.0) / 15.0;
911 type34_predictor = samples[0];
917 type34_predictor = samples[0];
934 for (k = 0; k < run && j + k < 128; k++) {
936 q->
tone_level[0][sb][(j + k) / 2] * samples[k];
938 if (sign_bits[(j + k) / 8])
940 q->
tone_level[1][sb][(j + k) / 2] * -samples[k];
943 q->
tone_level[1][sb][(j + k) / 2] * samples[k];
947 for (k = 0; k <
run; k++)
976 quantized_coeffs[0] =
level;
978 for (i = 0; i < 7; ) {
987 for (k = 1; k <=
run; k++)
988 quantized_coeffs[i + k] = (level + ((k * diff) / run));
1007 int sb, j, k, n, ch;
1020 for (sb = 0; sb < n; sb++)
1022 for (j = 0; j < 8; j++) {
1026 for (k=0; k < 8; k++) {
1032 for (k=0; k < 8; k++)
1039 for (sb = 0; sb < n; sb++)
1047 for (j = 0; j < 8; j++)
1053 for (sb = 0; sb < n; sb++)
1055 for (j = 0; j < 8; j++) {
1071 int i, j, k, n, ch,
run,
level, diff;
1077 for (i = 1; i < n; i++)
1082 for (j = 0; j < (8 - 1); ) {
1086 for (k = 1; k <=
run; k++)
1095 for (i = 0; i < 8; i++)
1172 if (nodes[0] !=
NULL)
1176 if (nodes[1] !=
NULL)
1182 if (nodes[0] !=
NULL && nodes[1] !=
NULL && nodes[2] !=
NULL)
1188 if (nodes[0] !=
NULL && nodes[1] !=
NULL && nodes[3] !=
NULL)
1204 int i, packet_bytes, sub_packet_size, sub_packets_D;
1205 unsigned int next_index = 0;
1219 if (header.
type < 2 || header.
type >= 8) {
1230 if (header.
type == 2 || header.
type == 4 || header.
type == 5) {
1246 for (i = 0; i < 6; i++)
1250 for (i = 0; packet_bytes > 0; i++) {
1262 if (next_index >= header.
size)
1270 sub_packet_size = ((packet->
size > 0xff) ? 1 : 0) + packet->
size + 2;
1272 if (packet->
type == 0)
1275 if (sub_packet_size > packet_bytes) {
1276 if (packet->
type != 10 && packet->
type != 11 && packet->
type != 12)
1278 packet->
size += packet_bytes - sub_packet_size;
1281 packet_bytes -= sub_packet_size;
1287 if (packet->
type == 8) {
1290 }
else if (packet->
type >= 9 && packet->
type <= 12) {
1293 }
else if (packet->
type == 13) {
1294 for (j = 0; j < 6; j++)
1296 }
else if (packet->
type == 14) {
1297 for (j = 0; j < 6; j++)
1299 }
else if (packet->
type == 15) {
1322 int offset,
int duration,
int channel,
1339 int channel, stereo, phase, exp;
1340 int local_int_4, local_int_8, stereo_phase, local_int_10;
1341 int local_int_14, stereo_exp, local_int_20, local_int_28;
1348 local_int_10 = 1 << (q->
group_order - duration - 1);
1353 while ((n =
qdm2_get_vlc(gb, &vlc_tab_fft_tone_offset[local_int_8], 1, 2)) < 2) {
1356 local_int_4 += local_int_10;
1357 local_int_28 += (1 << local_int_8);
1359 local_int_4 += 8*local_int_10;
1360 local_int_28 += (8 << local_int_8);
1365 offset +=
qdm2_get_vlc(gb, &vlc_tab_fft_tone_offset[local_int_8], 1, 2);
1366 while (offset >= (local_int_10 - 1)) {
1367 offset += (1 - (local_int_10 - 1));
1368 local_int_4 += local_int_10;
1369 local_int_28 += (1 << local_int_8);
1376 local_int_14 = (offset >> local_int_8);
1388 exp =
qdm2_get_vlc(gb, (b ? &fft_level_exp_vlc : &fft_level_exp_alt_vlc), 0, 2);
1390 exp = (exp < 0) ? 0 : exp;
1397 stereo_exp = (exp -
qdm2_get_vlc(gb, &fft_stereo_exp_vlc, 0, 1));
1398 stereo_phase = (phase -
qdm2_get_vlc(gb, &fft_stereo_phase_vlc, 0, 1));
1399 if (stereo_phase < 0)
1404 int sub_packet = (local_int_20 + local_int_28);
1418 int i, j,
min, max, value, type, unknown_flag;
1426 for (i=0; i < 5; i++)
1436 if (value > min && value < max) {
1459 type = packet->
type;
1461 if ((type >= 17 && type < 24) || (type >= 33 && type < 40)) {
1464 if (duration >= 0 && duration < 4)
1466 }
else if (type == 31) {
1467 for (j=0; j < 4; j++)
1469 }
else if (type == 46) {
1470 for (j=0; j < 6; j++)
1472 for (j=0; j < 4; j++)
1478 for (i = 0, j = -1; i < 5; i++)
1494 const double iscale = 2.0*
M_PI / 512.0;
1500 c.
im = level * sin(tone->
phase*iscale);
1501 c.
re = level * cos(tone->
phase*iscale);
1510 f[1] = -tone->
table[4];
1512 f[2] = 1.0 - tone->
table[2] - tone->
table[3];
1513 f[3] = tone->
table[1] + tone->
table[4] - 1.0;
1515 f[5] = tone->
table[2];
1516 for (i = 0; i < 2; i++) {
1520 for (i = 0; i < 4; i++) {
1537 const double iscale = 0.25 *
M_PI;
1539 for (ch = 0; ch < q->
channels; ch++) {
1571 for (i = 0; i < 4; i++)
1584 if (offset < q->frequency_range) {
1588 tone.
cutoff = (offset >= 60) ? 3 : 2;
1625 int i, k, ch, sb_used, sub_sampling, dither_state = 0;
1630 for (ch = 0; ch < q->
channels; ch++)
1631 for (i = 0; i < 8; i++)
1632 for (k=sb_used; k <
SBLIMIT; k++)
1636 float *samples_ptr = q->
samples + ch;
1638 for (i = 0; i < 8; i++) {
1651 for (ch = 0; ch < q->
channels; ch++)
1663 static int initialized = 0;
1665 if (initialized != 0)
1683 #define PRINT(a,b) av_log(NULL,AV_LOG_DEBUG," %s = %d\n", a, b);
1716 PRINT(
" samples_im", t->samples_im);
1717 PRINT(
" samples_re", t->samples_re);
1733 int tmp_val, tmp,
size;
1777 while (extradata_size > 7) {
1778 if (!memcmp(extradata,
"frmaQDM", 7))
1784 if (extradata_size < 12) {
1790 if (memcmp(extradata,
"frmaQDM", 7)) {
1795 if (extradata[7] ==
'C') {
1802 extradata_size -= 8;
1806 if(size > extradata_size){
1808 extradata_size, size);
1857 case 0: tmp = 40;
break;
1858 case 1: tmp = 48;
break;
1859 case 2: tmp = 56;
break;
1860 case 3: tmp = 72;
break;
1861 case 4: tmp = 80;
break;
1862 case 5: tmp = 100;
break;
1866 if ((tmp * 1000) < avctx->
bit_rate) tmp_val = 1;
1867 if ((tmp * 1440) < avctx->
bit_rate) tmp_val = 2;
1868 if ((tmp * 1760) < avctx->
bit_rate) tmp_val = 3;
1869 if ((tmp * 2240) < avctx->
bit_rate) tmp_val = 4;
1883 else if (tmp <= 16000)
1936 memset(&q->
output_buffer[frame_size], 0, frame_size *
sizeof(
float));
1954 for (ch = 0; ch < q->
channels; ch++) {
1970 for (i = 0; i < frame_size; i++) {
1986 int *got_frame_ptr,
AVPacket *avpkt)
1988 const uint8_t *buf = avpkt->
data;
1989 int buf_size = avpkt->
size;
1996 if(buf_size < s->checksum_size)
2007 for (i = 0; i < 16; i++) {