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authorRon Economos <w6rz@comcast.net>2015-03-23 14:28:17 -0700
committerRon Economos <w6rz@comcast.net>2015-03-23 14:28:17 -0700
commitea8988825f34ea10f56fa6c65a1877d415da508e (patch)
tree2f2a23edc49dee3f2c5f7e19dc957f591df79759 /gr-dtv/lib/dvbs2/dvbs2_interleaver_bb_impl.cc
parent9024682186cf176749df4de948d034661b19638f (diff)
gr-dtv: Add DVB-S2 transmitter.
Diffstat (limited to 'gr-dtv/lib/dvbs2/dvbs2_interleaver_bb_impl.cc')
-rw-r--r--gr-dtv/lib/dvbs2/dvbs2_interleaver_bb_impl.cc587
1 files changed, 587 insertions, 0 deletions
diff --git a/gr-dtv/lib/dvbs2/dvbs2_interleaver_bb_impl.cc b/gr-dtv/lib/dvbs2/dvbs2_interleaver_bb_impl.cc
new file mode 100644
index 0000000000..7abfbe3f79
--- /dev/null
+++ b/gr-dtv/lib/dvbs2/dvbs2_interleaver_bb_impl.cc
@@ -0,0 +1,587 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2015 Free Software Foundation, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gnuradio/io_signature.h>
+#include "dvbs2_interleaver_bb_impl.h"
+
+namespace gr {
+ namespace dtv {
+
+ dvbs2_interleaver_bb::sptr
+ dvbs2_interleaver_bb::make(dvb_framesize_t framesize, dvb_code_rate_t rate, dvb_constellation_t constellation)
+ {
+ return gnuradio::get_initial_sptr
+ (new dvbs2_interleaver_bb_impl(framesize, rate, constellation));
+ }
+
+ /*
+ * The private constructor
+ */
+ dvbs2_interleaver_bb_impl::dvbs2_interleaver_bb_impl(dvb_framesize_t framesize, dvb_code_rate_t rate, dvb_constellation_t constellation)
+ : gr::block("dvbs2_interleaver_bb",
+ gr::io_signature::make(1, 1, sizeof(unsigned char)),
+ gr::io_signature::make(1, 1, sizeof(unsigned char)))
+ {
+ int rows;
+ signal_constellation = constellation;
+ code_rate = rate;
+ if (framesize == FECFRAME_NORMAL) {
+ frame_size = FRAME_SIZE_NORMAL;
+ }
+ else {
+ frame_size = FRAME_SIZE_SHORT;
+ }
+ switch (constellation) {
+ case MOD_QPSK:
+ mod = 2;
+ rows = frame_size / mod;
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_8PSK:
+ mod = 3;
+ rows = frame_size / mod;
+ /* 210 */
+ if (rate == C3_5) {
+ rowaddr0 = rows * 2;
+ rowaddr1 = rows;
+ rowaddr2 = 0;
+ }
+ /* 102 */
+ else if (rate == C25_36 || rate == C13_18 || rate == C7_15 || rate == C8_15) {
+ rowaddr0 = rows;
+ rowaddr1 = 0;
+ rowaddr2 = rows * 2;
+ }
+ /* 012 */
+ else {
+ rowaddr0 = 0;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 2;
+ }
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_8APSK:
+ mod = 3;
+ rows = frame_size / mod;
+ /* 012 */
+ rowaddr0 = 0;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 2;
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_16APSK:
+ mod = 4;
+ rows = frame_size / mod;
+ if (rate == C26_45) {
+ /* 3201 */
+ if (frame_size == FRAME_SIZE_NORMAL) {
+ rowaddr0 = rows * 3;
+ rowaddr1 = rows * 2;
+ rowaddr2 = 0;
+ rowaddr3 = rows;
+ }
+ /* 2130 */
+ else {
+ rowaddr0 = rows * 2;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 3;
+ rowaddr3 = 0;
+ }
+ }
+ else if (rate == C3_5) {
+ /* 3210 */
+ if (frame_size == FRAME_SIZE_NORMAL) {
+ rowaddr0 = rows * 3;
+ rowaddr1 = rows * 2;
+ rowaddr2 = rows;
+ rowaddr3 = 0;
+ }
+ /* 3201 */
+ else {
+ rowaddr0 = rows * 3;
+ rowaddr1 = rows * 2;
+ rowaddr2 = 0;
+ rowaddr3 = rows;
+ }
+ }
+ /* 3012 */
+ else if (rate == C28_45) {
+ rowaddr0 = rows * 3;
+ rowaddr1 = 0;
+ rowaddr2 = rows;
+ rowaddr3 = rows * 2;
+ }
+ /* 3021 */
+ else if (rate == C23_36 || rate == C13_18) {
+ rowaddr0 = rows * 3;
+ rowaddr1 = 0;
+ rowaddr2 = rows * 2;
+ rowaddr3 = rows;
+ }
+ /* 2310 */
+ else if (rate == C25_36) {
+ rowaddr0 = rows * 2;
+ rowaddr1 = rows * 3;
+ rowaddr2 = rows;
+ rowaddr3 = 0;
+ }
+ /* 2103 */
+ else if (rate == C7_15 || rate == C8_15) {
+ rowaddr0 = rows * 2;
+ rowaddr1 = rows;
+ rowaddr2 = 0;
+ rowaddr3 = rows * 3;
+ }
+ /* 0123 */
+ else {
+ rowaddr0 = 0;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 2;
+ rowaddr3 = rows * 3;
+ }
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_8_8APSK:
+ mod = 4;
+ rows = frame_size / mod;
+ /* 3210 */
+ if (rate == C90_180) {
+ rowaddr0 = rows * 3;
+ rowaddr1 = rows * 2;
+ rowaddr2 = rows;
+ rowaddr3 = 0;
+ }
+ /* 2310 */
+ else if (rate == C96_180) {
+ rowaddr0 = rows * 2;
+ rowaddr1 = rows * 3;
+ rowaddr2 = rows;
+ rowaddr3 = 0;
+ }
+ /* 2301 */
+ else if (rate == C100_180) {
+ rowaddr0 = rows * 2;
+ rowaddr1 = rows * 3;
+ rowaddr2 = 0;
+ rowaddr3 = rows;
+ }
+ /* 0123 */
+ else {
+ rowaddr0 = 0;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 2;
+ rowaddr3 = rows * 3;
+ }
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_32APSK:
+ mod = 5;
+ rows = frame_size / mod;
+ /* 01234 */
+ rowaddr0 = 0;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 2;
+ rowaddr3 = rows * 3;
+ rowaddr4 = rows * 4;
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_4_12_16APSK:
+ mod = 5;
+ rows = frame_size / mod;
+ /* 21430 */
+ if (frame_size == FRAME_SIZE_NORMAL) {
+ rowaddr0 = rows * 2;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 4;
+ rowaddr3 = rows * 3;
+ rowaddr4 = 0;
+ }
+ else {
+ /* 41230 */
+ if (rate == C2_3) {
+ rowaddr0 = rows * 4;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 2;
+ rowaddr3 = rows * 3;
+ rowaddr4 = 0;
+ }
+ /* 10423 */
+ else if (rate == C32_45) {
+ rowaddr0 = rows;
+ rowaddr1 = 0;
+ rowaddr2 = rows * 4;
+ rowaddr3 = rows * 2;
+ rowaddr4 = rows * 3;
+ }
+ }
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_4_8_4_16APSK:
+ mod = 5;
+ rows = frame_size / mod;
+ /* 40213 */
+ if (rate == C140_180) {
+ rowaddr0 = rows * 4;
+ rowaddr1 = 0;
+ rowaddr2 = rows * 2;
+ rowaddr3 = rows;
+ rowaddr4 = rows * 3;
+ }
+ /* 40312 */
+ else {
+ rowaddr0 = rows * 4;
+ rowaddr1 = 0;
+ rowaddr2 = rows * 3;
+ rowaddr3 = rows;
+ rowaddr4 = rows * 2;
+ }
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_64APSK:
+ mod = 6;
+ rows = frame_size / mod;
+ /* 305214 */
+ rowaddr0 = rows * 3;
+ rowaddr1 = 0;
+ rowaddr2 = rows * 5;
+ rowaddr3 = rows * 2;
+ rowaddr4 = rows;
+ rowaddr5 = rows * 4;
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_8_16_20_20APSK:
+ mod = 6;
+ rows = frame_size / mod;
+ /* 201543 */
+ if (rate == C7_9) {
+ rowaddr0 = rows * 2;
+ rowaddr1 = 0;
+ rowaddr2 = rows;
+ rowaddr3 = rows * 5;
+ rowaddr4 = rows * 4;
+ rowaddr5 = rows * 3;
+ }
+ /* 124053 */
+ else if (rate == C4_5) {
+ rowaddr0 = rows;
+ rowaddr1 = rows * 2;
+ rowaddr2 = rows * 4;
+ rowaddr3 = 0;
+ rowaddr4 = rows * 5;
+ rowaddr5 = rows * 3;
+ }
+ /* 421053 */
+ else if (rate == C5_6) {
+ rowaddr0 = rows * 4;
+ rowaddr1 = rows * 2;
+ rowaddr2 = rows;
+ rowaddr3 = 0;
+ rowaddr4 = rows * 5;
+ rowaddr5 = rows * 3;
+ }
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_4_12_20_28APSK:
+ mod = 6;
+ rows = frame_size / mod;
+ /* 520143 */
+ rowaddr0 = rows * 5;
+ rowaddr1 = rows * 2;
+ rowaddr2 = 0;
+ rowaddr3 = rows;
+ rowaddr4 = rows * 4;
+ rowaddr5 = rows * 3;
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ case MOD_128APSK:
+ mod = 7;
+ rows = (frame_size + 6) / mod;
+ /* 4250316 */
+ if (rate == C135_180) {
+ rowaddr0 = rows * 4;
+ rowaddr1 = rows * 2;
+ rowaddr2 = rows * 5;
+ rowaddr3 = 0;
+ rowaddr4 = rows * 3;
+ rowaddr5 = rows;
+ rowaddr6 = rows * 6;
+ }
+ /* 4130256 */
+ else if (rate == C140_180) {
+ rowaddr0 = rows * 4;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 3;
+ rowaddr3 = 0;
+ rowaddr4 = rows * 2;
+ rowaddr5 = rows * 5;
+ rowaddr6 = rows * 6;
+ }
+ set_output_multiple(rows + 12);
+ packed_items = rows + 12;
+ break;
+ case MOD_256APSK:
+ mod = 8;
+ rows = frame_size / mod;
+ /* 40372156 */
+ if (rate == C116_180) {
+ rowaddr0 = rows * 4;
+ rowaddr1 = 0;
+ rowaddr2 = rows * 3;
+ rowaddr3 = rows * 7;
+ rowaddr4 = rows * 2;
+ rowaddr5 = rows;
+ rowaddr6 = rows * 5;
+ rowaddr7 = rows * 6;
+ }
+ /* 46320571 */
+ else if (rate == C124_180) {
+ rowaddr0 = rows * 4;
+ rowaddr1 = rows * 6;
+ rowaddr2 = rows * 3;
+ rowaddr3 = rows * 2;
+ rowaddr4 = 0;
+ rowaddr5 = rows * 5;
+ rowaddr6 = rows * 7;
+ rowaddr7 = rows;
+ }
+ /* 75642301 */
+ else if (rate == C128_180) {
+ rowaddr0 = rows * 7;
+ rowaddr1 = rows * 5;
+ rowaddr2 = rows * 6;
+ rowaddr3 = rows * 4;
+ rowaddr4 = rows * 2;
+ rowaddr5 = rows * 3;
+ rowaddr6 = 0;
+ rowaddr7 = rows;
+ }
+ /* 50743612 */
+ else if (rate == C135_180) {
+ rowaddr0 = rows * 5;
+ rowaddr1 = 0;
+ rowaddr2 = rows * 7;
+ rowaddr3 = rows * 4;
+ rowaddr4 = rows * 3;
+ rowaddr5 = rows * 6;
+ rowaddr6 = rows;
+ rowaddr7 = rows * 2;
+ }
+ /* 01234567 */
+ else {
+ rowaddr0 = 0;
+ rowaddr1 = rows;
+ rowaddr2 = rows * 2;
+ rowaddr3 = rows * 3;
+ rowaddr4 = rows * 4;
+ rowaddr5 = rows * 5;
+ rowaddr6 = rows * 6;
+ rowaddr7 = rows * 7;
+ }
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ default:
+ mod = 2;
+ rows = frame_size / mod;
+ set_output_multiple(rows);
+ packed_items = rows;
+ break;
+ }
+ }
+
+ /*
+ * Our virtual destructor.
+ */
+ dvbs2_interleaver_bb_impl::~dvbs2_interleaver_bb_impl()
+ {
+ }
+
+ void
+ dvbs2_interleaver_bb_impl::forecast (int noutput_items, gr_vector_int &ninput_items_required)
+ {
+ if (signal_constellation == MOD_128APSK) {
+ ninput_items_required[0] = ((noutput_items / 9270) * 9258) * mod;
+ }
+ else {
+ ninput_items_required[0] = noutput_items * mod;
+ }
+ }
+
+ int
+ dvbs2_interleaver_bb_impl::general_work (int noutput_items,
+ gr_vector_int &ninput_items,
+ gr_vector_const_void_star &input_items,
+ gr_vector_void_star &output_items)
+ {
+ const unsigned char *in = (const unsigned char *) input_items[0];
+ unsigned char *out = (unsigned char *) output_items[0];
+ int consumed = 0;
+ int produced = 0;
+ int rows;
+
+ switch (signal_constellation) {
+ case MOD_QPSK:
+ for (int i = 0; i < noutput_items; i += packed_items) {
+ rows = frame_size / 2;
+ for (int j = 0; j < rows; j++) {
+ out[produced] = in[consumed++] << 1;
+ out[produced++] |= in[consumed++];
+ }
+ }
+ break;
+ case MOD_8PSK:
+ case MOD_8APSK:
+ for (int i = 0; i < noutput_items; i += packed_items) {
+ rows = frame_size / 3;
+ const unsigned char *c1, *c2, *c3;
+ c1 = &in[consumed + rowaddr0];
+ c2 = &in[consumed + rowaddr1];
+ c3 = &in[consumed + rowaddr2];
+ for (int j = 0; j < rows; j++) {
+ out[produced++] = (c1[j]<<2) | (c2[j]<<1) | (c3[j]);
+ consumed += 3;
+ }
+ }
+ break;
+ case MOD_16APSK:
+ case MOD_8_8APSK:
+ for (int i = 0; i < noutput_items; i += packed_items) {
+ rows = frame_size / 4;
+ const unsigned char *c1, *c2, *c3, *c4;
+ c1 = &in[consumed + rowaddr0];
+ c2 = &in[consumed + rowaddr1];
+ c3 = &in[consumed + rowaddr2];
+ c4 = &in[consumed + rowaddr3];
+ for (int j = 0; j < rows; j++) {
+ out[produced++] = (c1[j]<<3) | (c2[j]<<2) | (c3[j]<<1) | (c4[j]);
+ consumed += 4;
+ }
+ }
+ break;
+ case MOD_32APSK:
+ case MOD_4_12_16APSK:
+ case MOD_4_8_4_16APSK:
+ for (int i = 0; i < noutput_items; i += packed_items) {
+ rows = frame_size / 5;
+ const unsigned char *c1, *c2, *c3, *c4, *c5;
+ c1 = &in[consumed + rowaddr0];
+ c2 = &in[consumed + rowaddr1];
+ c3 = &in[consumed + rowaddr2];
+ c4 = &in[consumed + rowaddr3];
+ c5 = &in[consumed + rowaddr4];
+ for (int j = 0; j < rows; j++) {
+ out[produced++] = (c1[j]<<4) | (c2[j]<<3) | (c3[j]<<2) | (c4[j]<<1) | c5[j];
+ consumed += 5;
+ }
+ }
+ break;
+ case MOD_64APSK:
+ case MOD_8_16_20_20APSK:
+ case MOD_4_12_20_28APSK:
+ for (int i = 0; i < noutput_items; i += packed_items) {
+ rows = frame_size / 6;
+ const unsigned char *c1, *c2, *c3, *c4, *c5, *c6;
+ c1 = &in[consumed + rowaddr0];
+ c2 = &in[consumed + rowaddr1];
+ c3 = &in[consumed + rowaddr2];
+ c4 = &in[consumed + rowaddr3];
+ c5 = &in[consumed + rowaddr4];
+ c6 = &in[consumed + rowaddr5];
+ for (int j = 0; j < rows; j++) {
+ out[produced++] = (c1[j]<<5) | (c2[j]<<4) | (c3[j]<<3) | (c4[j]<<2) | (c5[j]<<1) | c6[j];
+ consumed += 6;
+ }
+ }
+ break;
+ case MOD_128APSK:
+ for (int i = 0; i < noutput_items; i += packed_items) {
+ rows = (frame_size + 6) / 7;
+ const unsigned char *c1, *c2, *c3, *c4, *c5, *c6, *c7;
+ c1 = &in[consumed + rowaddr0];
+ c2 = &in[consumed + rowaddr1];
+ c3 = &in[consumed + rowaddr2];
+ c4 = &in[consumed + rowaddr3];
+ c5 = &in[consumed + rowaddr4];
+ c6 = &in[consumed + rowaddr5];
+ c7 = &in[consumed + rowaddr6];
+ for (int j = 0; j < rows; j++) {
+ out[produced++] = (c1[j]<<6) | (c2[j]<<5) | (c3[j]<<4) | (c4[j]<<3) | (c5[j]<<2) | (c6[j]<<1) | c7[j];
+ consumed += 7;
+ }
+ for (int j = 0; j < 12; j++) {
+ out[produced++] = 0x7f;
+ }
+ }
+ break;
+ case MOD_256APSK:
+ for (int i = 0; i < noutput_items; i += packed_items) {
+ rows = frame_size / 8;
+ const unsigned char *c1, *c2, *c3, *c4, *c5, *c6, *c7, *c8;
+ c1 = &in[consumed + rowaddr0];
+ c2 = &in[consumed + rowaddr1];
+ c3 = &in[consumed + rowaddr2];
+ c4 = &in[consumed + rowaddr3];
+ c5 = &in[consumed + rowaddr4];
+ c6 = &in[consumed + rowaddr5];
+ c7 = &in[consumed + rowaddr6];
+ c8 = &in[consumed + rowaddr7];
+ for (int j = 0; j < rows; j++) {
+ out[produced++] = (c1[j]<<7) | (c2[j]<<6) | (c3[j]<<5) | (c4[j]<<4) | (c5[j]<<3) | (c6[j]<<2) | (c7[j]<<1) | c8[j];
+ consumed += 8;
+ }
+ }
+ break;
+ default:
+ for (int i = 0; i < noutput_items; i += packed_items) {
+ rows = frame_size / 2;
+ for (int j = 0; j < rows; j++) {
+ out[produced] = in[consumed++] << 1;
+ out[produced++] |= in[consumed++];
+ }
+ }
+ break;
+ }
+
+ // Tell runtime system how many input items we consumed on
+ // each input stream.
+ consume_each (consumed);
+
+ // Tell runtime system how many output items we produced.
+ return noutput_items;
+ }
+
+ } /* namespace dtv */
+} /* namespace gr */
+
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-28 20:33:08 +0000