Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207

1 files changed, 384 insertions, 0 deletions

diff --git a/lib/libdvbcfg/dvbcfg_zapchannel.c b/lib/libdvbcfg/dvbcfg_zapchannel.c
new file mode 100644
index 0000000..2c2605e
--- /dev/null
+++ b/lib/libdvbcfg/dvbcfg_zapchannel.c
@@ -0,0 +1,384 @@
+/*
+ * dvbcfg - support for linuxtv configuration files
+ * zap 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 <string.h>
+#include <ctype.h>
+
+#include "dvbcfg_zapchannel.h"
+#include "dvbcfg_common.h"
+
+static const struct dvbcfg_setting dvbcfg_inversion_list[] = {
+	{ "INVERSION_ON",   DVBFE_INVERSION_ON   },
+	{ "INVERSION_OFF",  DVBFE_INVERSION_OFF  },
+	{ "INVERSION_AUTO", DVBFE_INVERSION_AUTO },
+	{ NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_fec_list[] = {
+	{ "FEC_1_2",  DVBFE_FEC_1_2  },
+	{ "FEC_2_3",  DVBFE_FEC_2_3  },
+	{ "FEC_3_4",  DVBFE_FEC_3_4  },
+	{ "FEC_4_5",  DVBFE_FEC_4_5  },
+	{ "FEC_5_6",  DVBFE_FEC_5_6  },
+	{ "FEC_6_7",  DVBFE_FEC_6_7  },
+	{ "FEC_7_8",  DVBFE_FEC_7_8  },
+	{ "FEC_8_9",  DVBFE_FEC_8_9  },
+	{ "FEC_AUTO", DVBFE_FEC_AUTO },
+	{ "FEC_NONE", DVBFE_FEC_NONE },
+	{ NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_dvbc_modulation_list[] = {
+	{ "QAM_16",   DVBFE_DVBC_MOD_QAM_16  },
+	{ "QAM_32",   DVBFE_DVBC_MOD_QAM_32  },
+	{ "QAM_64",   DVBFE_DVBC_MOD_QAM_64  },
+	{ "QAM_128",  DVBFE_DVBC_MOD_QAM_128 },
+	{ "QAM_256",  DVBFE_DVBC_MOD_QAM_256 },
+	{ "QAM_AUTO", DVBFE_DVBC_MOD_AUTO    },
+	{ NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_bandwidth_list[] = {
+	{ "BANDWIDTH_6_MHZ", DVBFE_DVBT_BANDWIDTH_6_MHZ },
+	{ "BANDWIDTH_7_MHZ", DVBFE_DVBT_BANDWIDTH_7_MHZ },
+	{ "BANDWIDTH_8_MHZ", DVBFE_DVBT_BANDWIDTH_8_MHZ },
+	{ "BANDWIDTH_AUTO",  DVBFE_DVBT_BANDWIDTH_AUTO  },
+	{ NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_constellation_list[] = {
+	{ "QAM_16",   DVBFE_DVBT_CONST_QAM_16  },
+	{ "QAM_32",   DVBFE_DVBT_CONST_QAM_32  },
+	{ "QAM_64",   DVBFE_DVBT_CONST_QAM_64  },
+	{ "QAM_128",  DVBFE_DVBT_CONST_QAM_128 },
+	{ "QAM_256",  DVBFE_DVBT_CONST_QAM_256 },
+	{ "QPSK",     DVBFE_DVBT_CONST_QPSK    },
+	{ "QAM_AUTO", DVBFE_DVBT_CONST_AUTO    },
+	{ NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_transmission_mode_list[] = {
+	{ "TRANSMISSION_MODE_2K",   DVBFE_DVBT_TRANSMISSION_MODE_2K   },
+	{ "TRANSMISSION_MODE_8K",   DVBFE_DVBT_TRANSMISSION_MODE_8K   },
+	{ "TRANSMISSION_MODE_AUTO", DVBFE_DVBT_TRANSMISSION_MODE_AUTO },
+	{ NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_guard_interval_list[] = {
+	{ "GUARD_INTERVAL_1_32", DVBFE_DVBT_GUARD_INTERVAL_1_32 },
+	{ "GUARD_INTERVAL_1_16", DVBFE_DVBT_GUARD_INTERVAL_1_16 },
+	{ "GUARD_INTERVAL_1_8",  DVBFE_DVBT_GUARD_INTERVAL_1_8  },
+	{ "GUARD_INTERVAL_1_4",  DVBFE_DVBT_GUARD_INTERVAL_1_4  },
+	{ "GUARD_INTERVAL_AUTO", DVBFE_DVBT_GUARD_INTERVAL_AUTO },
+	{ NULL, 0 }
+};
+
+static const struct dvbcfg_setting dvbcfg_hierarchy_list[] = {
+	{ "HIERARCHY_1",    DVBFE_DVBT_HIERARCHY_1    },
+	{ "HIERARCHY_2",    DVBFE_DVBT_HIERARCHY_2    },
+	{ "HIERARCHY_4",    DVBFE_DVBT_HIERARCHY_4    },
+	{ "HIERARCHY_AUTO", DVBFE_DVBT_HIERARCHY_AUTO },
+	{ "HIERARCHY_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  },
+	{ "QAM_64",  DVBFE_ATSC_MOD_QAM_64  },
+	{ "QAM_256", DVBFE_ATSC_MOD_QAM_256 },
+	{ NULL, 0 }
+};
+
+int dvbcfg_zapchannel_parse(FILE *file, dvbcfg_zapcallback 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_zapchannel tmp;
+
+		/* remove newline and comments (started with hashes) */
+		while ((*line_tmp != '\0') && (*line_tmp != '\n') && (*line_tmp != '#'))
+			line_tmp++;
+		*line_tmp = '\0';
+
+		/* parse name */
+		dvbcfg_parse_string(&line_pos, ":", tmp.name, sizeof(tmp.name));
+		if (!line_pos)
+			continue;
+
+		/* parse frequency */
+		tmp.fe_params.frequency = dvbcfg_parse_int(&line_pos, ":");
+		if (!line_pos)
+			continue;
+
+		/* try to determine frontend type */
+		if (strstr(line_pos, ":FEC_")) {
+			if (strstr(line_pos, ":HIERARCHY_"))
+				tmp.fe_type = DVBFE_TYPE_DVBT;
+			else
+				tmp.fe_type = DVBFE_TYPE_DVBC;
+		} else {
+			if (strstr(line_pos, "VSB:") || strstr(line_pos, "QAM_"))
+				tmp.fe_type = DVBFE_TYPE_ATSC;
+			else
+				tmp.fe_type = DVBFE_TYPE_DVBS;
+		}
+
+		/* parse frontend specific settings */
+		switch (tmp.fe_type) {
+		case DVBFE_TYPE_ATSC:
+			/* inversion */
+			tmp.fe_params.inversion = DVBFE_INVERSION_AUTO;
+
+			/* 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:
+			/* inversion */
+			tmp.fe_params.inversion =
+				dvbcfg_parse_setting(&line_pos, ":", dvbcfg_inversion_list);
+			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:
+			/* adjust frequency */
+			tmp.fe_params.frequency *= 1000;
+
+			/* inversion */
+			tmp.fe_params.inversion = DVBFE_INVERSION_AUTO;
+
+			/* fec */
+			tmp.fe_params.u.dvbs.fec_inner = DVBFE_FEC_AUTO;
+
+			/* 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;
+
+			/* satellite switch position */
+			tmp.diseqc_switch = dvbcfg_parse_int(&line_pos, ":");
+			if (!line_pos)
+				continue;
+
+			/* symbol rate */
+			tmp.fe_params.u.dvbs.symbol_rate =
+				dvbcfg_parse_int(&line_pos, ":") * 1000;
+			if (!line_pos)
+				continue;
+
+			break;
+
+		case DVBFE_TYPE_DVBT:
+			/* inversion */
+			tmp.fe_params.inversion =
+				dvbcfg_parse_setting(&line_pos, ":", dvbcfg_inversion_list);
+			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;
+		}
+
+		/* parse video and audio pids and service id */
+		tmp.video_pid = dvbcfg_parse_int(&line_pos, ":");
+		if (!line_pos)
+			continue;
+		tmp.audio_pid = dvbcfg_parse_int(&line_pos, ":");
+		if (!line_pos)
+			continue;
+		tmp.service_id = dvbcfg_parse_int(&line_pos, ":");
+		if (!line_pos) /* old files don't have a service id */
+			tmp.service_id = 0;
+
+		/* 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;
+}
+
+int dvbcfg_zapchannel_save(FILE *file, dvbcfg_zapcallback callback, void *private_data)
+{
+	int ret_val = 0;
+	struct dvbcfg_zapchannel tmp;
+
+	while ((ret_val = callback(&tmp, private_data)) == 0) {
+		/* name */
+		if ((ret_val = fprintf(file, "%s:", tmp.name)) < 0)
+			return ret_val;
+
+		/* frontend specific settings */
+		switch (tmp.fe_type) {
+		case DVBFE_TYPE_ATSC:
+			if ((ret_val = fprintf(file, "%i:%s:",
+			    tmp.fe_params.frequency,
+			    dvbcfg_lookup_setting(tmp.fe_params.u.atsc.modulation,
+						  dvbcfg_atsc_modulation_list))) < 0)
+				return ret_val;
+
+			break;
+
+		case DVBFE_TYPE_DVBC:
+			if ((ret_val = fprintf(file, "%i:%s:%i:%s:%s:",
+			    tmp.fe_params.frequency,
+			    dvbcfg_lookup_setting(tmp.fe_params.inversion,
+						  dvbcfg_inversion_list),
+			    tmp.fe_params.u.dvbc.symbol_rate,
+			    dvbcfg_lookup_setting(tmp.fe_params.u.dvbc.fec_inner,
+						  dvbcfg_fec_list),
+			    dvbcfg_lookup_setting(tmp.fe_params.u.dvbc.modulation,
+						  dvbcfg_dvbc_modulation_list))) < 0)
+				return ret_val;
+
+			break;
+
+		case DVBFE_TYPE_DVBS:
+			if ((ret_val = fprintf(file, "%i:%c:%i:%i:",
+			    tmp.fe_params.frequency / 1000,
+			    tolower(tmp.polarization),
+			    tmp.diseqc_switch,
+			    tmp.fe_params.u.dvbs.symbol_rate / 1000)) < 0)
+				return ret_val;
+
+			break;
+		case DVBFE_TYPE_DVBT:
+			if ((ret_val = fprintf(file, "%i:%s:%s:%s:%s:%s:%s:%s:%s:",
+			    tmp.fe_params.frequency,
+			    dvbcfg_lookup_setting(tmp.fe_params.inversion,
+						  dvbcfg_inversion_list),
+			    dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.bandwidth,
+						  dvbcfg_bandwidth_list),
+			    dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.code_rate_HP,
+						  dvbcfg_fec_list),
+			    dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.code_rate_LP,
+						  dvbcfg_fec_list),
+			    dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.constellation,
+						  dvbcfg_constellation_list),
+			    dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.transmission_mode,
+						  dvbcfg_transmission_mode_list),
+			    dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.guard_interval,
+						  dvbcfg_guard_interval_list),
+			    dvbcfg_lookup_setting(tmp.fe_params.u.dvbt.hierarchy_information,
+						  dvbcfg_hierarchy_list))) < 0)
+				return ret_val;
+
+			break;
+		}
+
+		/* video and audio pids and service id */
+		if ((ret_val = fprintf(file, "%i:%i:%i\n",
+		    tmp.video_pid, tmp.audio_pid, tmp.service_id)) < 0)
+			return ret_val;
+
+	}
+
+	if (ret_val < 0)
+		ret_val = 0;
+
+	return ret_val;
+}