diff options
Diffstat (limited to 'sys/dvb/parsechannels.c')
| -rw-r--r-- | sys/dvb/parsechannels.c | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/sys/dvb/parsechannels.c b/sys/dvb/parsechannels.c new file mode 100644 index 00000000..a813d43b --- /dev/null +++ b/sys/dvb/parsechannels.c @@ -0,0 +1,297 @@ +/* + * parsechannels.c - + * Copyright (C) 2008 Zaheer Abbas Merali + * + * Authors: + * Zaheer Abbas Merali <zaheerabbas at merali dot org> + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <glib.h> +#include <glib-object.h> +#include <stdlib.h> +#include <string.h> +#include <gst/gst.h> + +/* this will do zap style channels.conf only for the moment*/ +GHashTable * +parse_channels_conf_from_file (const gchar * filename) +{ + gchar *contents; + gchar **lines; + gchar *line; + gchar **fields; + gchar *terrestrial[] = { "inversion", "bandwidth", + "code-rate-hp", "code-rate-lp", "modulation", "transmission-mode", + "guard", "hierarchy" + }; + gchar *satellite[] = { "polarity", "diseqc-source", + "symbol-rate" + }; + int i; + GHashTable *res = NULL; + + if (g_file_get_contents (filename, &contents, NULL, NULL)) { + lines = g_strsplit (contents, "\n", 0); + res = g_hash_table_new (g_str_hash, g_str_equal); + + i = 0; + line = lines[0]; + while (line != NULL) { + if (line[0] != '#') { + int numfields; + gboolean parsed = FALSE; + GHashTable *params = g_hash_table_new_full (g_str_hash, g_str_equal, + g_free, g_free); + + fields = g_strsplit (line, ":", 0); + numfields = g_strv_length (fields); + if (numfields == 8) { + /* satellite */ + int j; + + g_hash_table_insert (params, g_strdup ("type"), + g_strdup ("satellite")); + for (j = 2; j <= 4; j++) { + g_hash_table_insert (params, g_strdup (satellite[j - 2]), + g_strdup (fields[j])); + } + g_hash_table_insert (params, g_strdup ("frequency"), + g_strdup_printf ("%d", atoi (fields[1]) * 1000)); + parsed = TRUE; + } else if (numfields == 13) { + /* terrestrial */ + int j; + + g_hash_table_insert (params, g_strdup ("type"), + g_strdup ("terrestrial")); + for (j = 2; j <= 9; j++) { + g_hash_table_insert (params, g_strdup (terrestrial[j - 2]), + g_strdup (fields[j])); + } + g_hash_table_insert (params, g_strdup ("frequency"), + g_strdup (fields[1])); + parsed = TRUE; + } + if (parsed) { + g_hash_table_insert (params, g_strdup ("sid"), + g_strdup (fields[numfields - 1])); + g_hash_table_insert (res, g_strdup (fields[0]), params); + } + g_strfreev (fields); + } + line = lines[++i]; + } + g_strfreev (lines); + g_free (contents); + } + return res; +} + +static gboolean +remove_channel_from_hash (gpointer key, gpointer value, gpointer user_data) +{ + if (key) + g_free (key); + if (value) + g_hash_table_destroy ((GHashTable *) value); + return TRUE; +} + +static void +destroy_channels_hash (GHashTable * channels) +{ + g_hash_table_foreach_remove (channels, remove_channel_from_hash, NULL); +} + +gboolean +set_properties_for_channel (GObject * dvbbasebin, const gchar * channel_name) +{ + gboolean ret = FALSE; + GHashTable *channels; + gchar *filename; + + filename = g_strdup (g_getenv ("GST_DVB_CHANNELS_CONF")); + if (filename == NULL) { + guint major, minor, micro, nano; + + gst_version (&major, &minor, µ, &nano); + filename = g_strdup_printf ("%s/.gstreamer-%d.%d/dvb-channels.conf", + g_get_home_dir (), major, minor); + } + channels = parse_channels_conf_from_file (filename); + g_free (filename); + + if (channels) { + GHashTable *params = g_hash_table_lookup (channels, + channel_name); + + if (params) { + gchar *type; + const gchar *adapter; + + g_object_set (dvbbasebin, "program-numbers", + g_hash_table_lookup (params, "sid"), NULL); + /* check if it is terrestrial or satellite */ + adapter = g_getenv ("GST_DVB_ADAPTER"); + if (adapter) + g_object_set (dvbbasebin, "adapter", atoi (adapter), NULL); + g_object_set (dvbbasebin, "frequency", + atoi (g_hash_table_lookup (params, "frequency")), NULL); + type = g_hash_table_lookup (params, "type"); + if (strcmp (type, "terrestrial") == 0) { + gchar *val; + + val = g_hash_table_lookup (params, "inversion"); + if (strcmp (val, "INVERSION_OFF") == 0) + g_object_set (dvbbasebin, "inversion", 0, NULL); + else if (strcmp (val, "INVERSION_ON") == 0) + g_object_set (dvbbasebin, "inversion", 1, NULL); + else + g_object_set (dvbbasebin, "inversion", 2, NULL); + + val = g_hash_table_lookup (params, "bandwidth"); + if (strcmp (val, "BANDWIDTH_8_MHZ") == 0) + g_object_set (dvbbasebin, "bandwidth", 0, NULL); + else if (strcmp (val, "BANDWIDTH_7_MHZ") == 0) + g_object_set (dvbbasebin, "bandwidth", 1, NULL); + else if (strcmp (val, "BANDWIDTH_6_MHZ") == 0) + g_object_set (dvbbasebin, "bandwidth", 2, NULL); + else + g_object_set (dvbbasebin, "bandwidth", 3, NULL); + + val = g_hash_table_lookup (params, "code-rate-hp"); + if (strcmp (val, "FEC_NONE") == 0) + g_object_set (dvbbasebin, "code-rate-hp", 0, NULL); + else if (strcmp (val, "FEC_1_2") == 0) + g_object_set (dvbbasebin, "code-rate-hp", 1, NULL); + else if (strcmp (val, "FEC_2_3") == 0) + g_object_set (dvbbasebin, "code-rate-hp", 2, NULL); + else if (strcmp (val, "FEC_3_4") == 0) + g_object_set (dvbbasebin, "code-rate-hp", 3, NULL); + else if (strcmp (val, "FEC_4_5") == 0) + g_object_set (dvbbasebin, "code-rate-hp", 4, NULL); + else if (strcmp (val, "FEC_5_6") == 0) + g_object_set (dvbbasebin, "code-rate-hp", 5, NULL); + else if (strcmp (val, "FEC_6_7") == 0) + g_object_set (dvbbasebin, "code-rate-hp", 6, NULL); + else if (strcmp (val, "FEC_7_8") == 0) + g_object_set (dvbbasebin, "code-rate-hp", 7, NULL); + else if (strcmp (val, "FEC_8_9") == 0) + g_object_set (dvbbasebin, "code-rate-hp", 8, NULL); + else + g_object_set (dvbbasebin, "code-rate-hp", 9, NULL); + + val = g_hash_table_lookup (params, "code-rate-lp"); + if (strcmp (val, "FEC_NONE") == 0) + g_object_set (dvbbasebin, "code-rate-lp", 0, NULL); + else if (strcmp (val, "FEC_1_2") == 0) + g_object_set (dvbbasebin, "code-rate-lp", 1, NULL); + else if (strcmp (val, "FEC_2_3") == 0) + g_object_set (dvbbasebin, "code-rate-lp", 2, NULL); + else if (strcmp (val, "FEC_3_4") == 0) + g_object_set (dvbbasebin, "code-rate-lp", 3, NULL); + else if (strcmp (val, "FEC_4_5") == 0) + g_object_set (dvbbasebin, "code-rate-lp", 4, NULL); + else if (strcmp (val, "FEC_5_6") == 0) + g_object_set (dvbbasebin, "code-rate-lp", 5, NULL); + else if (strcmp (val, "FEC_6_7") == 0) + g_object_set (dvbbasebin, "code-rate-lp", 6, NULL); + else if (strcmp (val, "FEC_7_8") == 0) + g_object_set (dvbbasebin, "code-rate-lp", 7, NULL); + else if (strcmp (val, "FEC_8_9") == 0) + g_object_set (dvbbasebin, "code-rate-lp", 8, NULL); + else + g_object_set (dvbbasebin, "code-rate-lp", 9, NULL); + + val = g_hash_table_lookup (params, "modulation"); + if (strcmp (val, "QPSK") == 0) + g_object_set (dvbbasebin, "modulation", 0, NULL); + else if (strcmp (val, "QAM_16") == 0) + g_object_set (dvbbasebin, "modulation", 1, NULL); + else if (strcmp (val, "QAM_32") == 0) + g_object_set (dvbbasebin, "modulation", 2, NULL); + else if (strcmp (val, "QAM_64") == 0) + g_object_set (dvbbasebin, "modulation", 3, NULL); + else if (strcmp (val, "QAM_128") == 0) + g_object_set (dvbbasebin, "modulation", 4, NULL); + else if (strcmp (val, "QAM_256") == 0) + g_object_set (dvbbasebin, "modulation", 5, NULL); + else + g_object_set (dvbbasebin, "modulation", 6, NULL); + + val = g_hash_table_lookup (params, "transmission-mode"); + if (strcmp (val, "TRANSMISSION_MODE_2K") == 0) + g_object_set (dvbbasebin, "trans-mode", 0, NULL); + else if (strcmp (val, "TRANSMISSION_MODE_8K") == 0) + g_object_set (dvbbasebin, "trans-mode", 1, NULL); + else + g_object_set (dvbbasebin, "trans-mode", 2, NULL); + + val = g_hash_table_lookup (params, "guard"); + if (strcmp (val, "GUARD_INTERVAL_1_32") == 0) + g_object_set (dvbbasebin, "guard", 0, NULL); + else if (strcmp (val, "GUARD_INTERVAL_1_16") == 0) + g_object_set (dvbbasebin, "guard", 1, NULL); + else if (strcmp (val, "GUARD_INTERVAL_1_8") == 0) + g_object_set (dvbbasebin, "guard", 2, NULL); + else if (strcmp (val, "GUARD_INTERVAL_1_4") == 0) + g_object_set (dvbbasebin, "guard", 3, NULL); + else + g_object_set (dvbbasebin, "guard", 4, NULL); + + val = g_hash_table_lookup (params, "hierarchy"); + if (strcmp (val, "HIERARCHY_NONE") == 0) + g_object_set (dvbbasebin, "hierarchy", 0, NULL); + else if (strcmp (val, "HIERARCHY_1") == 0) + g_object_set (dvbbasebin, "hierarchy", 1, NULL); + else if (strcmp (val, "HIERARCHY_2") == 0) + g_object_set (dvbbasebin, "hierarchy", 2, NULL); + else if (strcmp (val, "HIERARCHY_4") == 0) + g_object_set (dvbbasebin, "hierarchy", 3, NULL); + else + g_object_set (dvbbasebin, "hierarchy", 4, NULL); + + ret = TRUE; + } else if (strcmp (type, "satellite") == 0) { + gchar *val; + + ret = TRUE; + + val = g_hash_table_lookup (params, "polarity"); + if (val) + g_object_set (dvbbasebin, "polarity", val, NULL); + else + ret = FALSE; + + val = g_hash_table_lookup (params, "diseqc-source"); + if (val) + g_object_set (dvbbasebin, "diseqc-source", atoi (val), NULL); + + val = g_hash_table_lookup (params, "symbol-rate"); + if (val) + g_object_set (dvbbasebin, "symbol-rate", atoi (val), NULL); + else + ret = FALSE; + } + + } + destroy_channels_hash (channels); + } + + return ret; +} |