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authoretobi <git@e-tobi.net>2013-09-03 09:48:41 +0200
committeretobi <git@e-tobi.net>2013-09-03 09:48:41 +0200
commitab959d7b4194715870128e616b8e29d4a101e488 (patch)
tree61a746231d30817be73416a7d67763fd677a1042 /lib/libdvbcfg/dvbcfg_scanfile.c
parent6b350466c4902c5b137e0efaf1d189128a7f18f5 (diff)
downloadlinux-dvb-apps-ab959d7b4194715870128e616b8e29d4a101e488.tar.gz
Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207
Diffstat (limited to 'lib/libdvbcfg/dvbcfg_scanfile.c')
-rw-r--r--lib/libdvbcfg/dvbcfg_scanfile.c282
1 files changed, 282 insertions, 0 deletions
diff --git a/lib/libdvbcfg/dvbcfg_scanfile.c b/lib/libdvbcfg/dvbcfg_scanfile.c
new file mode 100644
index 0000000..ec305a4
--- /dev/null
+++ b/lib/libdvbcfg/dvbcfg_scanfile.c
@@ -0,0 +1,282 @@
+/*
+ * dvbcfg - support for linuxtv configuration files
+ * scan channel file support
+ *
+ * Copyright (C) 2006 Christoph Pfister <christophpfister@gmail.com>
+ * Copyright (C) 2005 Andrew de Quincey <adq_dvb@lidskialf.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#define _GNU_SOURCE
+
+#include <malloc.h>
+#include <ctype.h>
+
+#include "dvbcfg_scanfile.h"
+#include "dvbcfg_common.h"
+
+static const struct dvbcfg_setting dvbcfg_fec_list[] = {
+ { "1/2", DVBFE_FEC_1_2 },
+ { "2/3", DVBFE_FEC_2_3 },
+ { "3/4", DVBFE_FEC_3_4 },
+ { "4/5", DVBFE_FEC_4_5 },
+ { "5/6", DVBFE_FEC_5_6 },
+ { "6/7", DVBFE_FEC_6_7 },
+ { "7/8", DVBFE_FEC_7_8 },
+ { "8/9", DVBFE_FEC_8_9 },
+ { "AUTO", DVBFE_FEC_AUTO },
+ { "NONE", DVBFE_FEC_NONE },
+ { NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_dvbc_modulation_list[] = {
+ { "QAM16", DVBFE_DVBC_MOD_QAM_16 },
+ { "QAM32", DVBFE_DVBC_MOD_QAM_32 },
+ { "QAM64", DVBFE_DVBC_MOD_QAM_64 },
+ { "QAM128", DVBFE_DVBC_MOD_QAM_128 },
+ { "QAM256", DVBFE_DVBC_MOD_QAM_256 },
+ { "AUTO", DVBFE_DVBC_MOD_AUTO },
+ { NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_bandwidth_list[] = {
+ { "6MHz", DVBFE_DVBT_BANDWIDTH_6_MHZ },
+ { "7MHz", DVBFE_DVBT_BANDWIDTH_7_MHZ },
+ { "8MHz", DVBFE_DVBT_BANDWIDTH_8_MHZ },
+ { "AUTO", DVBFE_DVBT_BANDWIDTH_AUTO },
+ { NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_constellation_list[] = {
+ { "QAM16", DVBFE_DVBT_CONST_QAM_16 },
+ { "QAM32", DVBFE_DVBT_CONST_QAM_32 },
+ { "QAM64", DVBFE_DVBT_CONST_QAM_64 },
+ { "QAM128", DVBFE_DVBT_CONST_QAM_128 },
+ { "QAM256", DVBFE_DVBT_CONST_QAM_256 },
+ { "QPSK", DVBFE_DVBT_CONST_QPSK },
+ { "AUTO", DVBFE_DVBT_CONST_AUTO },
+ { NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_transmission_mode_list[] = {
+ { "2k", DVBFE_DVBT_TRANSMISSION_MODE_2K },
+ { "8k", DVBFE_DVBT_TRANSMISSION_MODE_8K },
+ { "AUTO", DVBFE_DVBT_TRANSMISSION_MODE_AUTO },
+ { NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_guard_interval_list[] = {
+ { "1/32", DVBFE_DVBT_GUARD_INTERVAL_1_32 },
+ { "1/16", DVBFE_DVBT_GUARD_INTERVAL_1_16 },
+ { "1/8", DVBFE_DVBT_GUARD_INTERVAL_1_8 },
+ { "1/4", DVBFE_DVBT_GUARD_INTERVAL_1_4 },
+ { "AUTO", DVBFE_DVBT_GUARD_INTERVAL_AUTO },
+ { NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_hierarchy_list[] = {
+ { "1", DVBFE_DVBT_HIERARCHY_1 },
+ { "2", DVBFE_DVBT_HIERARCHY_2 },
+ { "4", DVBFE_DVBT_HIERARCHY_4 },
+ { "AUTO", DVBFE_DVBT_HIERARCHY_AUTO },
+ { "NONE", DVBFE_DVBT_HIERARCHY_NONE },
+ { NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_atsc_modulation_list[] = {
+ { "8VSB", DVBFE_ATSC_MOD_VSB_8 },
+ { "16VSB", DVBFE_ATSC_MOD_VSB_16 },
+ { "QAM64", DVBFE_ATSC_MOD_QAM_64 },
+ { "QAM256", DVBFE_ATSC_MOD_QAM_256 },
+ { NULL, 0 }
+};
+
+int dvbcfg_scanfile_parse(FILE *file, dvbcfg_scancallback callback, void *private_data)
+{
+ char *line_buf = NULL;
+ size_t line_size = 0;
+ int line_len = 0;
+ int ret_val = 0;
+
+ while ((line_len = getline(&line_buf, &line_size, file)) > 0) {
+ char *line_tmp = line_buf;
+ char *line_pos = line_buf;
+ struct dvbcfg_scanfile tmp;
+
+ /* remove newline and comments (started with hashes) */
+ while ((*line_tmp != '\0') && (*line_tmp != '\n') && (*line_tmp != '#'))
+ line_tmp++;
+ *line_tmp = '\0';
+
+ /* always use inversion auto */
+ tmp.fe_params.inversion = DVBFE_INVERSION_AUTO;
+
+ /* parse frontend type */
+ switch(dvbcfg_parse_char(&line_pos, " ")) {
+ case 'T':
+ tmp.fe_type = DVBFE_TYPE_DVBT;
+ break;
+ case 'C':
+ tmp.fe_type = DVBFE_TYPE_DVBC;
+ break;
+ case 'S':
+ tmp.fe_type = DVBFE_TYPE_DVBS;
+ break;
+ case 'A':
+ tmp.fe_type = DVBFE_TYPE_ATSC;
+ break;
+ default:
+ continue;
+ }
+
+ /* parse frontend specific settings */
+ switch (tmp.fe_type) {
+ case DVBFE_TYPE_ATSC:
+
+ /* parse frequency */
+ tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, " ");
+ if (!line_pos)
+ continue;
+
+ /* modulation */
+ tmp.fe_params.u.atsc.modulation =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_atsc_modulation_list);
+ if (!line_pos)
+ continue;
+
+ break;
+
+ case DVBFE_TYPE_DVBC:
+
+ /* parse frequency */
+ tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, " ");
+ if (!line_pos)
+ continue;
+
+ /* symbol rate */
+ tmp.fe_params.u.dvbc.symbol_rate = dvbcfg_parse_int(&line_pos, " ");
+ if (!line_pos)
+ continue;
+
+ /* fec */
+ tmp.fe_params.u.dvbc.fec_inner =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_fec_list);
+ if (!line_pos)
+ continue;
+
+ /* modulation */
+ tmp.fe_params.u.dvbc.modulation =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_dvbc_modulation_list);
+ if (!line_pos)
+ continue;
+
+ break;
+
+ case DVBFE_TYPE_DVBS:
+
+ /* parse frequency */
+ tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, " ");
+ if (!line_pos)
+ continue;
+
+ /* polarization */
+ tmp.polarization = tolower(dvbcfg_parse_char(&line_pos, " "));
+ if (!line_pos)
+ continue;
+ if ((tmp.polarization != 'h') &&
+ (tmp.polarization != 'v') &&
+ (tmp.polarization != 'l') &&
+ (tmp.polarization != 'r'))
+ continue;
+
+ /* symbol rate */
+ tmp.fe_params.u.dvbs.symbol_rate = dvbcfg_parse_int(&line_pos, " ");
+ if (!line_pos)
+ continue;
+
+ /* fec */
+ tmp.fe_params.u.dvbc.fec_inner =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_fec_list);
+ if (!line_pos)
+ continue;
+
+ break;
+
+ case DVBFE_TYPE_DVBT:
+
+ /* parse frequency */
+ tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, " ");
+ if (!line_pos)
+ continue;
+
+ /* bandwidth */
+ tmp.fe_params.u.dvbt.bandwidth =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_bandwidth_list);
+ if (!line_pos)
+ continue;
+
+ /* fec hp */
+ tmp.fe_params.u.dvbt.code_rate_HP =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_fec_list);
+ if (!line_pos)
+ continue;
+
+ /* fec lp */
+ tmp.fe_params.u.dvbt.code_rate_LP =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_fec_list);
+ if (!line_pos)
+ continue;
+
+ /* constellation */
+ tmp.fe_params.u.dvbt.constellation =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_constellation_list);
+ if (!line_pos)
+ continue;
+
+ /* transmission mode */
+ tmp.fe_params.u.dvbt.transmission_mode =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_transmission_mode_list);
+ if (!line_pos)
+ continue;
+
+ /* guard interval */
+ tmp.fe_params.u.dvbt.guard_interval =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_guard_interval_list);
+ if (!line_pos)
+ continue;
+
+ /* hierarchy */
+ tmp.fe_params.u.dvbt.hierarchy_information =
+ dvbcfg_parse_setting(&line_pos, " ", dvbcfg_hierarchy_list);
+ if (!line_pos)
+ continue;
+
+ break;
+ }
+
+ /* invoke callback */
+ if ((ret_val = callback(&tmp, private_data)) != 0) {
+ if (ret_val < 0)
+ ret_val = 0;
+ break;
+ }
+ }
+
+ if (line_buf)
+ free(line_buf);
+
+ return ret_val;
+}