diff options
| -rw-r--r-- | sys/dvb/parsechannels.c | 367 |
1 files changed, 353 insertions, 14 deletions
diff --git a/sys/dvb/parsechannels.c b/sys/dvb/parsechannels.c index 8f5f1d3f6..ee0a352d4 100644 --- a/sys/dvb/parsechannels.c +++ b/sys/dvb/parsechannels.c @@ -45,6 +45,319 @@ GST_DEBUG_CATEGORY_EXTERN (dvb_base_bin_debug); * Detect when the file changed on disk */ +typedef gboolean (*GstDvbV5ChannelsConfPropSetFunction) (GstElement * + dvbbasebin, const gchar * property, GKeyFile * kf, + const gchar * channel_name, const gchar * key); + +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; +} + +/* TODO handle errors when getting keyfile data on all these functions */ +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); + 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); + 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); + 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 (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[] = { + "32", "16", "8", "4", "auto", + "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_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", "AUTO", "8VSB", + "16VSB", "8PSK", "16APSK", "32APSK", + "DQPSK", "QAM4NR", NULL + }; + return gst_dvb_base_bin_conf_set_property_from_string_array (dvbbasebin, + property, kf, channel_name, key, modulations, 6); +} + +typedef struct +{ + const gchar *conf_property; + const gchar *elem_property; + GstDvbV5ChannelsConfPropSetFunction set_func; +} GstDvbV5ChannelsConfToPropertyMap; + +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}, + {"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,} +}; + +static gboolean +parse_and_configure_from_v5_channels_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_DEBUG_OBJECT (dvbbasebin, "Failed to map channels.conf property " + "'%s'", k); + } + + keys_p++; + } + + GST_DEBUG_OBJECT (dvbbasebin, "Succesfully parsed channels file"); + 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 DVB channel configuration file")); + } else { + g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_READ, + _("Couldn't load DVB channel configuration file: %s"), err->message); + } + g_clear_error (&err); + return FALSE; + +unknown_channel: + { + /* FIXME: is channel name guaranteed to be ASCII or UTF-8? */ + g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_NOT_FOUND, + _("Couldn't find details for DVB channel %s"), channel_name); + g_key_file_unref (keyfile); + g_clear_error (&err); + return FALSE; + } + +no_properties: + { + /* FIXME: is channel name guaranteed to be ASCII or UTF-8? */ + g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_NOT_FOUND, + _("No properties for the DVB channel %s"), channel_name); + g_key_file_unref (keyfile); + g_clear_error (&err); + return FALSE; + } + +property_error: + { + /* FIXME: is channel name guaranteed to be ASCII or UTF-8? */ + g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_FAILED, + _("Failed to set properties for the DVB channel %s"), channel_name); + g_key_file_unref (keyfile); + g_clear_error (&err); + return FALSE; + } +} + /* this will do zap style channels.conf only for the moment */ static GHashTable * parse_channels_conf_from_file (GstElement * dvbbasebin, const gchar * filename, @@ -192,15 +505,13 @@ destroy_channels_hash (GHashTable * channels) g_hash_table_foreach_remove (channels, remove_channel_from_hash, NULL); } -gboolean -set_properties_for_channel (GstElement * dvbbasebin, - const gchar * channel_name, GError ** error) +static gboolean +parse_and_configure_from_channels_conf_file (GstElement * dvbbasebin, + const gchar * filename, const gchar * channel_name, GError ** error) { gboolean ret = FALSE; GHashTable *channels, *params; - gchar *filename; gchar *type; - const gchar *adapter; /** * Assumptions are made here about a format that is loosely @@ -213,13 +524,7 @@ set_properties_for_channel (GstElement * dvbbasebin, * g_object_set line and let dvbsrc work his magic out. */ - 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); - } channels = parse_channels_conf_from_file (dvbbasebin, filename, error); - g_free (filename); if (!channels) goto beach; @@ -232,9 +537,6 @@ set_properties_for_channel (GstElement * dvbbasebin, 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"); @@ -466,3 +768,40 @@ unknown_channel: return FALSE; } } + +gboolean +set_properties_for_channel (GstElement * dvbbasebin, + const gchar * channel_name, GError ** error) +{ + gboolean ret = FALSE; + gchar *filename; + const gchar *adapter; + + 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); + } + + /* TODO detect channels.conf file format */ + + adapter = g_getenv ("GST_DVB_ADAPTER"); + if (adapter) + g_object_set (dvbbasebin, "adapter", atoi (adapter), NULL); + + if (!(ret = + parse_and_configure_from_v5_channels_conf_file (dvbbasebin, filename, + channel_name, error))) { + /* TODO only fallback if it was a parsing error */ + + g_clear_error (error); + GST_DEBUG_OBJECT (dvbbasebin, "Resorting to old ZAP format file parsing"); + + /* fallback to old format */ + ret = + parse_and_configure_from_channels_conf_file (dvbbasebin, filename, + channel_name, error); + } + g_free (filename); + return ret; +} |