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gstreamer/subprojects/gst-plugins-bad/sys/dvb/parsechannels.c

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/*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
#include <glib-object.h>
#include <stdlib.h>
#include <string.h>
#include <gst/gst.h>
#include <gst/gst-i18n-plugin.h>
#include "parsechannels.h"
#include <linux/dvb/frontend.h>
GST_DEBUG_CATEGORY_EXTERN (dvb_base_bin_debug);
#define GST_CAT_DEFAULT dvb_base_bin_debug
typedef enum
{
CHANNEL_CONF_FORMAT_NONE,
CHANNEL_CONF_FORMAT_DVBV5,
CHANNEL_CONF_FORMAT_ZAP
} GstDvbChannelConfFormat;
typedef gboolean (*GstDvbV5ChannelsConfPropSetFunction) (GstElement *
dvbbasebin, const gchar * property, GKeyFile * kf,
const gchar * channel_name, const gchar * key);
typedef struct
{
const gchar *conf_property;
const gchar *elem_property;
GstDvbV5ChannelsConfPropSetFunction set_func;
} GstDvbV5ChannelsConfToPropertyMap;
static gboolean parse_and_configure_from_v5_conf_file (GstElement * dvbbasebin,
const gchar * filename, const gchar * channel_name, GError ** error);
static gboolean parse_and_configure_from_zap_conf_file (GstElement * dvbbasebin,
const gchar * filename, const gchar * channel_name, GError ** error);
static GstDvbChannelConfFormat detect_file_format (const gchar * filename);
static gboolean gst_dvb_base_bin_conf_set_string (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static gboolean gst_dvb_base_bin_conf_set_uint (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static gboolean gst_dvb_base_bin_conf_set_int (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static gboolean gst_dvb_base_bin_conf_set_inversion (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static gboolean gst_dvb_base_bin_conf_set_guard (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static gboolean gst_dvb_base_bin_conf_set_trans_mode (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static gboolean gst_dvb_base_bin_conf_set_code_rate (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static gboolean gst_dvb_base_bin_conf_set_delsys (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static gboolean gst_dvb_base_bin_conf_set_hierarchy (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static gboolean gst_dvb_base_bin_conf_set_modulation (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key);
static GHashTable *parse_channels_conf_from_zap_file (GstElement * dvbbasebin,
const gchar * filename, GError ** error);
static gboolean remove_channel_from_hash (gpointer key, gpointer value,
gpointer user_data);
static void destroy_channels_hash (GHashTable * channels);
GstDvbV5ChannelsConfToPropertyMap dvbv5_prop_map[] = {
{"SERVICE_ID", "program-numbers", gst_dvb_base_bin_conf_set_string},
{"FREQUENCY", "frequency", gst_dvb_base_bin_conf_set_uint},
{"BANDWIDTH_HZ", "bandwidth-hz", gst_dvb_base_bin_conf_set_uint},
{"INVERSION", "inversion", gst_dvb_base_bin_conf_set_inversion},
{"GUARD_INTERVAL", "guard", gst_dvb_base_bin_conf_set_guard},
{"TRANSMISSION_MODE", "trans-mode", gst_dvb_base_bin_conf_set_trans_mode},
{"HIERARCHY", "hierarchy", gst_dvb_base_bin_conf_set_hierarchy},
{"MODULATION", "modulation", gst_dvb_base_bin_conf_set_modulation},
{"CODE_RATE_HP", "code-rate-hp", gst_dvb_base_bin_conf_set_code_rate},
{"CODE_RATE_LP", "code-rate-lp", gst_dvb_base_bin_conf_set_code_rate},
{"ISDBT_LAYER_ENABLED", "isdbt-layer-enabled",
gst_dvb_base_bin_conf_set_uint},
{"ISDBT_PARTIAL_RECEPTION", "isdbt-partial-reception",
gst_dvb_base_bin_conf_set_int},
{"ISDBT_SOUND_BROADCASTING", "isdbt-sound-broadcasting",
gst_dvb_base_bin_conf_set_int},
{"ISDBT_SB_SUBCHANNEL_ID", "isdbt-sb-subchannel-id",
gst_dvb_base_bin_conf_set_int},
{"ISDBT_SB_SEGMENT_IDX", "isdbt-sb-segment-idx",
gst_dvb_base_bin_conf_set_int},
{"ISDBT_SB_SEGMENT_COUNT", "isdbt-sb-segment-count", gst_dvb_base_bin_conf_set_int}, /* Range in files start from 0, property starts from 1 */
{"ISDBT_LAYERA_FEC", "isdbt-layera-fec", gst_dvb_base_bin_conf_set_code_rate},
{"ISDBT_LAYERA_MODULATION", "isdbt-layera-modulation",
gst_dvb_base_bin_conf_set_modulation},
{"ISDBT_LAYERA_SEGMENT_COUNT", "isdbt-layera-segment-count",
gst_dvb_base_bin_conf_set_int},
{"ISDBT_LAYERA_TIME_INTERLEAVING", "isdbt-layera-time-interleaving",
gst_dvb_base_bin_conf_set_int},
{"ISDBT_LAYERB_FEC", "isdbt-layerb-fec", gst_dvb_base_bin_conf_set_code_rate},
{"ISDBT_LAYERB_MODULATION", "isdbt-layerb-modulation",
gst_dvb_base_bin_conf_set_modulation},
{"ISDBT_LAYERB_SEGMENT_COUNT", "isdbt-layerb-segment-count",
gst_dvb_base_bin_conf_set_int},
{"ISDBT_LAYERB_TIME_INTERLEAVING", "isdbt-layerb-time-interleaving",
gst_dvb_base_bin_conf_set_int},
{"ISDBT_LAYERC_FEC", "isdbt-layerc-fec", gst_dvb_base_bin_conf_set_code_rate},
{"ISDBT_LAYERC_MODULATION", "isdbt-layerc-modulation",
gst_dvb_base_bin_conf_set_modulation},
{"ISDBT_LAYERC_SEGMENT_COUNT", "isdbt-layerc-segment-count",
gst_dvb_base_bin_conf_set_int},
{"ISDBT_LAYERC_TIME_INTERLEAVING", "isdbt-layerc-time-interleaving",
gst_dvb_base_bin_conf_set_int},
{"DELIVERY_SYSTEM", "delsys", gst_dvb_base_bin_conf_set_delsys},
{NULL,}
};
/* TODO:
* Store the channels hash table around instead of constantly parsing it
* Detect when the file changed on disk
*/
static gint
gst_dvb_base_bin_find_string_in_array (const gchar ** array, const gchar * str)
{
gint i = 0;
const gchar *cur;
while ((cur = array[i])) {
if (strcmp (cur, str) == 0)
return i;
i++;
}
return -1;
}
static gboolean
gst_dvb_base_bin_conf_set_property_from_string_array (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key, const gchar ** strings, gint default_value)
{
gchar *str;
gint v;
str = g_key_file_get_string (kf, channel_name, key, NULL);
v = gst_dvb_base_bin_find_string_in_array (strings, str);
if (v == -1) {
GST_WARNING_OBJECT (dvbbasebin, "Unexpected value '%s' for property "
"'%s', using default: '%d'", str, property, default_value);
v = default_value;
}
g_free (str);
g_object_set (dvbbasebin, property, v, NULL);
return TRUE;
}
static gboolean
gst_dvb_base_bin_conf_set_string (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key)
{
gchar *str;
str = g_key_file_get_string (kf, channel_name, key, NULL);
if (!str) {
GST_WARNING_OBJECT (dvbbasebin,
"Could not get value for '%s' on channel '%s'", key, channel_name);
return FALSE;
}
g_object_set (dvbbasebin, property, str, NULL);
g_free (str);
return TRUE;
}
static gboolean
gst_dvb_base_bin_conf_set_uint (GstElement * dvbbasebin, const gchar * property,
GKeyFile * kf, const gchar * channel_name, const gchar * key)
{
guint64 v;
v = g_key_file_get_uint64 (kf, channel_name, key, NULL);
if (!v) {
GST_WARNING_OBJECT (dvbbasebin,
"Could not get value for '%s' on channel '%s'", key, channel_name);
return FALSE;
}
g_object_set (dvbbasebin, property, (guint) v, NULL);
return TRUE;
}
static gboolean
gst_dvb_base_bin_conf_set_int (GstElement * dvbbasebin, const gchar * property,
GKeyFile * kf, const gchar * channel_name, const gchar * key)
{
gint v;
v = g_key_file_get_integer (kf, channel_name, key, NULL);
if (!v) {
GST_WARNING_OBJECT (dvbbasebin,
"Could not get value for '%s' on channel '%s'", key, channel_name);
return FALSE;
}
g_object_set (dvbbasebin, property, v, NULL);
return TRUE;
}
static gboolean
gst_dvb_base_bin_conf_set_inversion (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key)
{
gchar *str;
gint v;
str = g_key_file_get_string (kf, channel_name, key, NULL);
if (!str) {
GST_WARNING_OBJECT (dvbbasebin,
"Could not get value for '%s' on channel '%s'", key, channel_name);
return FALSE;
}
if (strcmp (str, "AUTO") == 0)
v = 2;
else if (strcmp (str, "ON") == 0)
v = 1;
else
v = 0; /* OFF */
g_free (str);
g_object_set (dvbbasebin, property, v, NULL);
return TRUE;
}
static gboolean
gst_dvb_base_bin_conf_set_guard (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key)
{
const gchar *guards[] = {
"1/32", "1/16", "1/8", "1/4", "auto",
"1/128", "19/128", "19/256",
"PN420", "PN595", "PN945", NULL
};
return gst_dvb_base_bin_conf_set_property_from_string_array (dvbbasebin,
property, kf, channel_name, key, guards, 4);
}
static gboolean
gst_dvb_base_bin_conf_set_trans_mode (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key)
{
const gchar *trans_modes[] = {
"2K", "8K", "AUTO", "4K", "1K",
"16K", "32K", "C1", "C3780", NULL
};
return gst_dvb_base_bin_conf_set_property_from_string_array (dvbbasebin,
property, kf, channel_name, key, trans_modes, 2);
}
static gboolean
gst_dvb_base_bin_conf_set_code_rate (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key)
{
const gchar *code_rates[] = {
"NONE", "1/2", "2/3", "3/4", "4/5",
"5/6", "6/7", "7/8", "8/9", "AUTO",
"3/5", "9/10", "2/5", NULL
};
return gst_dvb_base_bin_conf_set_property_from_string_array (dvbbasebin,
property, kf, channel_name, key, code_rates, 9);
}
static gboolean
gst_dvb_base_bin_conf_set_delsys (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key)
{
const gchar *delsys[] = {
"UNDEFINED", "DVBCA", "DVBCB", "DVBT", "DSS",
"DVBS", "DVBS2", "DVBH", "ISDBT", "ISDBS",
"ISDBC", "ATSC", "ATSCMH", "DTMB", "CMMB",
"DAB", "DVBT2", "TURBO", "DVBCC", NULL
};
return gst_dvb_base_bin_conf_set_property_from_string_array (dvbbasebin,
property, kf, channel_name, key, delsys, 0);
}
static gboolean
gst_dvb_base_bin_conf_set_hierarchy (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key)
{
const gchar *hierarchies[] = {
"NONE", "1", "2", "4", "AUTO", NULL
};
return gst_dvb_base_bin_conf_set_property_from_string_array (dvbbasebin,
property, kf, channel_name, key, hierarchies, 4);
}
static gboolean
gst_dvb_base_bin_conf_set_modulation (GstElement * dvbbasebin,
const gchar * property, GKeyFile * kf, const gchar * channel_name,
const gchar * key)
{
const gchar *modulations[] = {
"QPSK", "QAM/16", "QAM/32", "QAM/64",
"QAM/128", "QAM/256", "QAM/AUTO", "VSB/8",
"VSB/16", "PSK/8", "APSK/16", "APSK/32",
"DQPSK", "QAM/4_NR", NULL
};
return gst_dvb_base_bin_conf_set_property_from_string_array (dvbbasebin,
property, kf, channel_name, key, modulations, 6);
}
/* FIXME: is channel_name guaranteed to be ASCII or UTF-8? */
static gboolean
parse_and_configure_from_v5_conf_file (GstElement * dvbbasebin,
const gchar * filename, const gchar * channel_name, GError ** error)
{
GKeyFile *keyfile;
gchar **keys, **keys_p;
GError *err = NULL;
keyfile = g_key_file_new ();
if (!g_key_file_load_from_file (keyfile, filename, G_KEY_FILE_NONE, &err))
goto load_error;
if (!g_key_file_has_group (keyfile, channel_name))
goto unknown_channel;
keys = g_key_file_get_keys (keyfile, channel_name, NULL, &err);
if (!keys)
goto no_properties;
keys_p = keys;
while (*keys_p) {
const gchar *k = *keys_p;
const GstDvbV5ChannelsConfToPropertyMap *map_entry = dvbv5_prop_map;
gboolean property_found = FALSE;
GST_LOG_OBJECT (dvbbasebin, "Setting property %s", k);
while (map_entry->conf_property) {
if (strcmp (map_entry->conf_property, k) == 0) {
if (!map_entry->set_func (dvbbasebin, map_entry->elem_property, keyfile,
channel_name, k))
goto property_error;
property_found = TRUE;
break;
}
map_entry++;
}
if (!property_found)
GST_WARNING_OBJECT (dvbbasebin, "Failed to map property '%s'", k);
keys_p++;
}
GST_DEBUG_OBJECT (dvbbasebin, "Successfully parsed channel configuration "
"file '%s'", filename);
g_strfreev (keys);
g_key_file_unref (keyfile);
return TRUE;
load_error:
if ((err->domain == G_FILE_ERROR && err->code == G_FILE_ERROR_NOENT) ||
(err->domain == G_KEY_FILE_ERROR
&& err->code == G_KEY_FILE_ERROR_NOT_FOUND)) {
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_NOT_FOUND,
_("Couldn't find channel configuration file"));
} else {
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_READ,
_("Couldn't load channel configuration file: '%s'"), err->message);
}
g_clear_error (&err);
return FALSE;
unknown_channel:
{
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_NOT_FOUND,
_("Couldn't find details for channel '%s'"), channel_name);
g_key_file_unref (keyfile);
g_clear_error (&err);
return FALSE;
}
no_properties:
{
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_NOT_FOUND,
_("No properties for channel '%s'"), channel_name);
g_key_file_unref (keyfile);
g_clear_error (&err);
return FALSE;
}
property_error:
{
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_FAILED,
_("Failed to set properties for channel '%s'"), channel_name);
g_key_file_unref (keyfile);
g_clear_error (&err);
return FALSE;
}
}
static GHashTable *
parse_channels_conf_from_zap_file (GstElement * dvbbasebin,
const gchar * filename, GError ** error)
{
gchar *contents;
gchar **lines;
gchar *line;
gchar **fields;
int i, parsedchannels = 0;
GHashTable *res;
GError *err = NULL;
const gchar *terrestrial[] = { "inversion", "bandwidth",
"code-rate-hp", "code-rate-lp", "modulation", "transmission-mode",
"guard", "hierarchy"
};
const gchar *satellite[] = { "polarity", "diseqc-source",
"symbol-rate"
};
const gchar *cable[] = { "inversion", "symbol-rate", "code-rate-hp",
"modulation"
};
GST_INFO_OBJECT (dvbbasebin, "parsing '%s'", filename);
if (!g_file_get_contents (filename, &contents, NULL, &err))
goto open_fail;
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) {
GHashTable *params;
int j, numfields;
if (line[0] == '#')
goto next_line;
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);
switch (numfields) {
case 13: /* terrestrial */
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]));
break;
case 9: /* cable */
g_hash_table_insert (params, g_strdup ("type"), g_strdup ("cable"));
for (j = 2; j <= 5; j++) {
g_hash_table_insert (params, g_strdup (cable[j - 2]),
g_strdup (fields[j]));
}
g_hash_table_insert (params, g_strdup ("frequency"),
g_strdup (fields[1]));
break;
case 8: /* satellite */
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]));
}
/* Some ZAP format variations store freqs in MHz
* but we internally use kHz for DVB-S/S2. */
if (strlen (fields[1]) < 6) {
g_hash_table_insert (params, g_strdup ("frequency"),
g_strdup_printf ("%d", atoi (fields[1]) * 1000));
} else {
g_hash_table_insert (params, g_strdup ("frequency"),
g_strdup_printf ("%d", atoi (fields[1])));
}
break;
case 6: /* atsc (vsb/qam) */
g_hash_table_insert (params, g_strdup ("type"), g_strdup ("atsc"));
g_hash_table_insert (params, g_strdup ("modulation"),
g_strdup (fields[2]));
g_hash_table_insert (params, g_strdup ("frequency"),
g_strdup (fields[1]));
break;
default:
goto not_parsed;
}
/* parsed */
g_hash_table_insert (params, g_strdup ("sid"),
g_strdup (fields[numfields - 1]));
g_hash_table_insert (res, g_strdup (fields[0]), params);
parsedchannels++;
not_parsed:
g_strfreev (fields);
next_line:
line = lines[++i];
}
g_strfreev (lines);
g_free (contents);
if (parsedchannels == 0)
goto no_channels;
return res;
open_fail:
if (err->code == G_FILE_ERROR_NOENT) {
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_NOT_FOUND,
_("Couldn't find channel configuration file: '%s'"), err->message);
} else {
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_READ,
_("Couldn't load channel configuration file: '%s'"), err->message);
}
g_clear_error (&err);
return NULL;
no_channels:
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_FAILED,
_("Channel configuration file doesn't contain any channels"));
g_hash_table_unref (res);
return NULL;
}
static gboolean
remove_channel_from_hash (gpointer key, gpointer value, gpointer user_data)
{
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);
}
/* FIXME: is channel_name guaranteed to be ASCII or UTF-8? */
static gboolean
parse_and_configure_from_zap_conf_file (GstElement * dvbbasebin,
const gchar * filename, const gchar * channel_name, GError ** error)
{
gboolean ret = FALSE;
GHashTable *channels, *params;
gchar *type;
/* Assumptions are made here about a format that is loosely
* defined. Particularly, we assume a given delivery system
* out of counting the number of fields per line. dvbsrc has
* smarter code to auto-detect a delivery system based on
* known-correct combinations of parameters so if you ever
* encounter cases where the delivery system is being
* wrongly set here, just remove the offending
* g_object_set line and let dvbsrc work his magic out. */
channels = parse_channels_conf_from_zap_file (dvbbasebin, filename, error);
if (!channels)
goto beach;
params = g_hash_table_lookup (channels, channel_name);
if (!params)
goto unknown_channel;
g_object_set (dvbbasebin, "program-numbers",
g_hash_table_lookup (params, "sid"), NULL);
/* check if it is terrestrial or satellite */
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", INVERSION_OFF, NULL);
else if (strcmp (val, "INVERSION_ON") == 0)
g_object_set (dvbbasebin, "inversion", INVERSION_ON, NULL);
else
g_object_set (dvbbasebin, "inversion", INVERSION_AUTO, 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 if (strcmp (val, "BANDWIDTH_5_MHZ") == 0)
g_object_set (dvbbasebin, "bandwidth", 4, NULL);
else if (strcmp (val, "BANDWIDTH_10_MHZ") == 0)
g_object_set (dvbbasebin, "bandwidth", 5, NULL);
else if (strcmp (val, "BANDWIDTH_1_712_MHZ") == 0)
g_object_set (dvbbasebin, "bandwidth", 6, 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;
g_object_set (dvbbasebin, "delsys", SYS_DVBS, NULL);
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;
} else if (strcmp (type, "cable") == 0) {
gchar *val;
g_object_set (dvbbasebin, "delsys", SYS_DVBC_ANNEX_A, NULL);
ret = TRUE;
val = g_hash_table_lookup (params, "symbol-rate");
if (val)
g_object_set (dvbbasebin, "symbol-rate", atoi (val) / 1000, 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, "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, "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);
} else if (strcmp (type, "atsc") == 0) {
gchar *val;
ret = TRUE;
g_object_set (dvbbasebin, "delsys", SYS_ATSC, NULL);
val = g_hash_table_lookup (params, "modulation");
if (strcmp (val, "QAM_64") == 0)
g_object_set (dvbbasebin, "modulation", 3, NULL);
else if (strcmp (val, "QAM_256") == 0)
g_object_set (dvbbasebin, "modulation", 5, NULL);
else if (strcmp (val, "8VSB") == 0)
g_object_set (dvbbasebin, "modulation", 7, NULL);
else if (strcmp (val, "16VSB") == 0)
g_object_set (dvbbasebin, "modulation", 8, NULL);
else
ret = FALSE;
}
destroy_channels_hash (channels);
beach:
return ret;
unknown_channel:
{
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_NOT_FOUND,
_("Couldn't find details for channel '%s'"), channel_name);
destroy_channels_hash (channels);
return FALSE;
}
}
static GstDvbChannelConfFormat
detect_file_format (const gchar * filename)
{
gchar *contents;
gchar **lines;
gchar **line;
GstDvbChannelConfFormat ret = CHANNEL_CONF_FORMAT_NONE;
if (!g_file_get_contents (filename, &contents, NULL, NULL))
return ret;
lines = g_strsplit (contents, "\n", 0);
line = lines;
while (*line) {
if (g_str_has_prefix (*line, "[") && g_str_has_suffix (*line, "]")) {
ret = CHANNEL_CONF_FORMAT_DVBV5;
break;
} else if (g_strrstr (*line, ":")) {
ret = CHANNEL_CONF_FORMAT_ZAP;
break;
}
line++;
}
g_strfreev (lines);
g_free (contents);
return ret;
}
gboolean
set_properties_for_channel (GstElement * dvbbasebin,
const gchar * channel_name, GError ** error)
{
gboolean ret = FALSE;
gchar *filename;
filename = g_strdup (g_getenv ("GST_DVB_CHANNELS_CONF"));
if (filename == NULL) {
filename = g_build_filename (g_get_user_config_dir (),
"gstreamer-" GST_API_VERSION, "dvb-channels.conf", NULL);
}
switch (detect_file_format (filename)) {
case CHANNEL_CONF_FORMAT_DVBV5:
if (!parse_and_configure_from_v5_conf_file (dvbbasebin, filename,
channel_name, error)) {
GST_WARNING_OBJECT (dvbbasebin, "Problem finding information for "
"channel '%s' in configuration file '%s'", channel_name, filename);
} else {
GST_INFO_OBJECT (dvbbasebin, "Parsed libdvbv5 channel configuration "
"file");
ret = TRUE;
}
break;
case CHANNEL_CONF_FORMAT_ZAP:
if (!parse_and_configure_from_zap_conf_file (dvbbasebin, filename,
channel_name, error)) {
GST_WARNING_OBJECT (dvbbasebin, "Problem finding information for "
"channel '%s' in configuration file '%s'", channel_name, filename);
} else {
GST_INFO_OBJECT (dvbbasebin, "Parsed ZAP channel configuration file");
ret = TRUE;
}
break;
default:
GST_WARNING_OBJECT (dvbbasebin, "Unknown configuration file format. "
"Can not get parameters for channel");
}
g_free (filename);
return ret;
}
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