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gstreamer/tests/examples/mpegts/ts-parser.c
Thiago Santos 0c6bb561e0 mpegts: atsc: add STT table parsing 
Adds the system time table structure and functions for convenient parsing of
it and for getting the UTC datetime that it represents. Also adds its
information dumping to the ts-parser example

https://bugzilla.gnome.org/show_bug.cgi?id=730435
2014-05-29 10:37:59 +02:00

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/* GStreamer
*
* ts-parser.c: sample application to display mpeg-ts info from any pipeline
* Copyright (C) 2013
* Edward Hervey <bilboed@gmail.com>
*
* 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
#define DUMP_DESCRIPTORS 0
#include <glib.h>
#include <glib-object.h>
#include <glib/gprintf.h>
#include <gst/gst.h>
#include <gst/mpegts/mpegts.h>
static void
gst_info_dump_mem_line (gchar * linebuf, gsize linebuf_size,
const guint8 * mem, gsize mem_offset, gsize mem_size)
{
gchar hexstr[50], ascstr[18], digitstr[4];
if (mem_size > 16)
mem_size = 16;
hexstr[0] = '\0';
ascstr[0] = '\0';
if (mem != NULL) {
guint i = 0;
mem += mem_offset;
while (i < mem_size) {
ascstr[i] = (g_ascii_isprint (mem[i])) ? mem[i] : '.';
g_snprintf (digitstr, sizeof (digitstr), "%02x ", mem[i]);
g_strlcat (hexstr, digitstr, sizeof (hexstr));
++i;
}
ascstr[i] = '\0';
}
g_snprintf (linebuf, linebuf_size, "%08x: %-48.48s %-16.16s",
(guint) mem_offset, hexstr, ascstr);
}
static void
dump_memory_content (GstMpegTsDescriptor * desc, guint spacing)
{
gsize off = 0;
while (off < desc->length) {
gchar buf[128];
/* gst_info_dump_mem_line will process 16 bytes at most */
gst_info_dump_mem_line (buf, sizeof (buf), desc->data, off + 2,
desc->length - off);
g_printf ("%*s %s\n", spacing, "", buf);
off += 16;
}
}
static const gchar *
descriptor_name (gint val)
{
GEnumValue *en;
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek
(GST_TYPE_MPEG_TS_DESCRIPTOR_TYPE)), val);
if (en == NULL)
/* Else try with DVB enum types */
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek
(GST_TYPE_MPEG_TS_DVB_DESCRIPTOR_TYPE)), val);
if (en == NULL)
/* Else try with ATSC enum types */
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek
(GST_TYPE_MPEG_TS_ATSC_DESCRIPTOR_TYPE)), val);
if (en == NULL)
/* Else try with ISB enum types */
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek
(GST_TYPE_MPEG_TS_ISDB_DESCRIPTOR_TYPE)), val);
if (en == NULL)
/* Else try with misc enum types */
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek
(GST_TYPE_MPEG_TS_MISC_DESCRIPTOR_TYPE)), val);
if (en == NULL)
return "UNKNOWN/PRIVATE";
return en->value_nick;
}
static const gchar *
table_id_name (gint val)
{
GEnumValue *en;
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek
(GST_TYPE_MPEG_TS_SECTION_TABLE_ID)), val);
if (en == NULL)
/* Else try with DVB enum types */
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek
(GST_TYPE_MPEG_TS_SECTION_DVB_TABLE_ID)), val);
if (en == NULL)
/* Else try with ATSC enum types */
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek
(GST_TYPE_MPEG_TS_SECTION_ATSC_TABLE_ID)), val);
if (en == NULL)
/* Else try with SCTE enum types */
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek
(GST_TYPE_MPEG_TS_SECTION_SCTE_TABLE_ID)), val);
if (en == NULL)
return "UNKNOWN/PRIVATE";
return en->value_nick;
}
static const gchar *
enum_name (GType instance_type, gint val)
{
GEnumValue *en;
en = g_enum_get_value (G_ENUM_CLASS (g_type_class_peek (instance_type)), val);
if (!en)
return "UNKNOWN/PRIVATE";
return en->value_nick;
}
static void
dump_cable_delivery_descriptor (GstMpegTsDescriptor * desc, guint spacing)
{
GstMpegTsCableDeliverySystemDescriptor res;
if (gst_mpegts_descriptor_parse_cable_delivery_system (desc, &res)) {
g_printf ("%*s Cable Delivery Descriptor\n", spacing, "");
g_printf ("%*s Frequency : %d Hz\n", spacing, "", res.frequency);
g_printf ("%*s Outer FEC : %d (%s)\n", spacing, "", res.outer_fec,
enum_name (GST_TYPE_MPEG_TS_CABLE_OUTER_FEC_SCHEME, res.outer_fec));
g_printf ("%*s modulation : %d (%s)\n", spacing, "", res.modulation,
enum_name (GST_TYPE_MPEG_TS_MODULATION_TYPE, res.modulation));
g_printf ("%*s Symbol rate : %d sym/s\n", spacing, "", res.symbol_rate);
g_printf ("%*s Inner FEC : %d (%s)\n", spacing, "", res.fec_inner,
enum_name (GST_TYPE_MPEG_TS_DVB_CODE_RATE, res.fec_inner));
}
}
static void
dump_terrestrial_delivery (GstMpegTsDescriptor * desc, guint spacing)
{
GstMpegTsTerrestrialDeliverySystemDescriptor res;
if (gst_mpegts_descriptor_parse_terrestrial_delivery_system (desc, &res)) {
g_printf ("%*s Terrestrial Delivery Descriptor\n", spacing, "");
g_printf ("%*s Frequency : %d Hz\n", spacing, "", res.frequency);
g_printf ("%*s Bandwidth : %d Hz\n", spacing, "", res.bandwidth);
g_printf ("%*s Priority : %s\n", spacing, "",
res.priority ? "TRUE" : "FALSE");
g_printf ("%*s Time slicing : %s\n", spacing, "",
res.time_slicing ? "TRUE" : "FALSE");
g_printf ("%*s MPE FEC : %s\n", spacing, "",
res.mpe_fec ? "TRUE" : "FALSE");
g_printf ("%*s Constellation : %d (%s)\n", spacing, "",
res.constellation, enum_name (GST_TYPE_MPEG_TS_MODULATION_TYPE,
res.constellation));
g_printf ("%*s Hierarchy : %d (%s)\n", spacing, "", res.hierarchy,
enum_name (GST_TYPE_MPEG_TS_TERRESTRIAL_HIERARCHY, res.hierarchy));
g_printf ("%*s Code Rate HP : %d (%s)\n", spacing, "",
res.code_rate_hp, enum_name (GST_TYPE_MPEG_TS_DVB_CODE_RATE,
res.code_rate_hp));
g_printf ("%*s Code Rate LP : %d (%s)\n", spacing, "",
res.code_rate_lp, enum_name (GST_TYPE_MPEG_TS_DVB_CODE_RATE,
res.code_rate_lp));
g_printf ("%*s Guard Interval : %d (%s)\n", spacing, "",
res.guard_interval,
enum_name (GST_TYPE_MPEG_TS_TERRESTRIAL_GUARD_INTERVAL,
res.guard_interval));
g_printf ("%*s Transmission Mode : %d (%s)\n", spacing, "",
res.transmission_mode,
enum_name (GST_TYPE_MPEG_TS_TERRESTRIAL_TRANSMISSION_MODE,
res.transmission_mode));
g_printf ("%*s Other Frequency : %s\n", spacing, "",
res.other_frequency ? "TRUE" : "FALSE");
}
}
static void
dump_dvb_service_list (GstMpegTsDescriptor * desc, guint spacing)
{
GPtrArray *res;
if (gst_mpegts_descriptor_parse_dvb_service_list (desc, &res)) {
guint i;
g_printf ("%*s DVB Service List Descriptor\n", spacing, "");
for (i = 0; i < res->len; i++) {
GstMpegTsDVBServiceListItem *item = g_ptr_array_index (res, i);
g_printf ("%*s Service #%d, id:0x%04x, type:0x%x (%s)\n",
spacing, "", i, item->service_id, item->type,
enum_name (GST_TYPE_MPEG_TS_DVB_SERVICE_TYPE, item->type));
}
g_ptr_array_unref (res);
}
}
static void
dump_logical_channel_descriptor (GstMpegTsDescriptor * desc, guint spacing)
{
GstMpegTsLogicalChannelDescriptor res;
guint i;
if (gst_mpegts_descriptor_parse_logical_channel (desc, &res)) {
g_printf ("%*s Logical Channel Descriptor (%d channels)\n", spacing, "",
res.nb_channels);
for (i = 0; i < res.nb_channels; i++) {
GstMpegTsLogicalChannel *chann = &res.channels[i];
g_printf ("%*s service_id: 0x%04x, logical channel number:%4d\n",
spacing, "", chann->service_id, chann->logical_channel_number);
}
}
}
static void
dump_multiligual_network_name (GstMpegTsDescriptor * desc, guint spacing)
{
GPtrArray *items;
if (gst_mpegts_descriptor_parse_dvb_multilingual_network_name (desc, &items)) {
guint i;
for (i = 0; i < items->len; i++) {
GstMpegTsDvbMultilingualNetworkNameItem *item =
g_ptr_array_index (items, i);
g_printf ("%*s item : %u\n", spacing, "", i);
g_printf ("%*s language_code : %s\n", spacing, "", item->language_code);
g_printf ("%*s network_name : %s\n", spacing, "", item->network_name);
}
g_ptr_array_unref (items);
}
}
static void
dump_multiligual_bouquet_name (GstMpegTsDescriptor * desc, guint spacing)
{
GPtrArray *items;
if (gst_mpegts_descriptor_parse_dvb_multilingual_bouquet_name (desc, &items)) {
guint i;
for (i = 0; i < items->len; i++) {
GstMpegTsDvbMultilingualBouquetNameItem *item =
g_ptr_array_index (items, i);
g_printf ("%*s item : %u\n", spacing, "", i);
g_printf ("%*s language_code : %s\n", spacing, "", item->language_code);
g_printf ("%*s bouguet_name : %s\n", spacing, "", item->bouquet_name);
}
g_ptr_array_unref (items);
}
}
static void
dump_multiligual_service_name (GstMpegTsDescriptor * desc, guint spacing)
{
GPtrArray *items;
if (gst_mpegts_descriptor_parse_dvb_multilingual_service_name (desc, &items)) {
guint i;
for (i = 0; i < items->len; i++) {
GstMpegTsDvbMultilingualServiceNameItem *item =
g_ptr_array_index (items, i);
g_printf ("%*s item : %u\n", spacing, "", i);
g_printf ("%*s language_code : %s\n", spacing, "", item->language_code);
g_printf ("%*s service_name : %s\n", spacing, "", item->service_name);
g_printf ("%*s provider_name : %s\n", spacing, "", item->provider_name);
}
g_ptr_array_unref (items);
}
}
static void
dump_multiligual_component (GstMpegTsDescriptor * desc, guint spacing)
{
GPtrArray *items;
guint8 tag;
if (gst_mpegts_descriptor_parse_dvb_multilingual_component (desc, &tag,
&items)) {
guint8 i;
g_printf ("%*s component_tag : 0x%02x\n", spacing, "", tag);
for (i = 0; i < items->len; i++) {
GstMpegTsDvbMultilingualComponentItem *item =
g_ptr_array_index (items, i);
g_printf ("%*s item : %u\n", spacing, "", i);
g_printf ("%*s language_code : %s\n", spacing, "",
item->language_code);
g_printf ("%*s description : %s\n", spacing, "", item->description);
}
g_ptr_array_unref (items);
}
}
static void
dump_iso_639_language (GstMpegTsDescriptor * desc, guint spacing)
{
guint i;
GstMpegTsISO639LanguageDescriptor res;
if (gst_mpegts_descriptor_parse_iso_639_language (desc, &res)) {
for (i = 0; i < res.nb_language; i++)
g_print
("%*s ISO 639 Language Descriptor %c%c%c , audio_type:0x%x (%s)\n",
spacing, "", res.language[i][0], res.language[i][1],
res.language[i][2], res.audio_type[i],
enum_name (GST_TYPE_MPEG_TS_ISO639_AUDIO_TYPE, res.audio_type[i]));
}
}
static void
dump_dvb_extended_event (GstMpegTsDescriptor * desc, guint spacing)
{
GstMpegTsExtendedEventDescriptor res;
if (gst_mpegts_descriptor_parse_dvb_extended_event (desc, &res)) {
guint i;
g_printf ("%*s DVB Extended Event\n", spacing, "");
g_printf ("%*s descriptor_number:%d, last_descriptor_number:%d\n",
spacing, "", res.descriptor_number, res.last_descriptor_number);
g_printf ("%*s language_code:%s\n", spacing, "", res.language_code);
g_printf ("%*s text : %s\n", spacing, "", res.text);
for (i = 0; i < res.items->len; i++) {
GstMpegTsExtendedEventItem *item = g_ptr_array_index (res.items, i);
g_printf ("%*s #%d [description:item] %s : %s\n",
spacing, "", i, item->item_description, item->item);
}
}
}
static void
dump_descriptors (GPtrArray * descriptors, guint spacing)
{
guint i;
for (i = 0; i < descriptors->len; i++) {
GstMpegTsDescriptor *desc = g_ptr_array_index (descriptors, i);
g_printf ("%*s [descriptor 0x%02x (%s) length:%d]\n", spacing, "",
desc->tag, descriptor_name (desc->tag), desc->length);
if (DUMP_DESCRIPTORS)
dump_memory_content (desc, spacing + 2);
switch (desc->tag) {
case GST_MTS_DESC_REGISTRATION:
{
const guint8 *data = desc->data + 2;
#define SAFE_CHAR(a) (g_ascii_isprint(a) ? a : '.')
g_printf ("%*s Registration : %c%c%c%c [%02x%02x%02x%02x]\n", spacing,
"", SAFE_CHAR (data[0]), SAFE_CHAR (data[1]), SAFE_CHAR (data[2]),
SAFE_CHAR (data[3]), data[0], data[1], data[2], data[3]);
break;
}
case GST_MTS_DESC_DVB_NETWORK_NAME:
{
gchar *network_name;
if (gst_mpegts_descriptor_parse_dvb_network_name (desc, &network_name)) {
g_printf ("%*s Network Name : %s\n", spacing, "", network_name);
g_free (network_name);
}
break;
}
case GST_MTS_DESC_DVB_SERVICE_LIST:
{
dump_dvb_service_list (desc, spacing + 2);
break;
}
case GST_MTS_DESC_DVB_CABLE_DELIVERY_SYSTEM:
dump_cable_delivery_descriptor (desc, spacing + 2);
break;
case GST_MTS_DESC_DVB_TERRESTRIAL_DELIVERY_SYSTEM:
dump_terrestrial_delivery (desc, spacing + 2);
break;
case GST_MTS_DESC_DVB_BOUQUET_NAME:
{
gchar *bouquet_name;
if (gst_mpegts_descriptor_parse_dvb_bouquet_name (desc, &bouquet_name)) {
g_printf ("%*s Bouquet Name Descriptor, bouquet_name:%s\n", spacing,
"", bouquet_name);
g_free (bouquet_name);
}
break;
}
case GST_MTS_DESC_DTG_LOGICAL_CHANNEL:
dump_logical_channel_descriptor (desc, spacing + 2);
break;
case GST_MTS_DESC_DVB_SERVICE:
{
gchar *service_name, *provider_name;
GstMpegTsDVBServiceType service_type;
if (gst_mpegts_descriptor_parse_dvb_service (desc, &service_type,
&service_name, &provider_name)) {
g_printf ("%*s Service Descriptor, type:0x%02x (%s)\n", spacing, "",
service_type, enum_name (GST_TYPE_MPEG_TS_DVB_SERVICE_TYPE,
service_type));
g_printf ("%*s service_name : %s\n", spacing, "", service_name);
g_printf ("%*s provider_name : %s\n", spacing, "",
provider_name);
g_free (service_name);
g_free (provider_name);
}
break;
}
case GST_MTS_DESC_DVB_MULTILINGUAL_BOUQUET_NAME:
{
dump_multiligual_bouquet_name (desc, spacing + 2);
break;
}
case GST_MTS_DESC_DVB_MULTILINGUAL_NETWORK_NAME:
{
dump_multiligual_network_name (desc, spacing + 2);
break;
}
case GST_MTS_DESC_DVB_MULTILINGUAL_SERVICE_NAME:
{
dump_multiligual_service_name (desc, spacing + 2);
break;
}
case GST_MTS_DESC_DVB_MULTILINGUAL_COMPONENT:
{
dump_multiligual_component (desc, spacing + 2);
break;
}
case GST_MTS_DESC_DVB_PRIVATE_DATA_SPECIFIER:
{
if (!DUMP_DESCRIPTORS)
dump_memory_content (desc, spacing + 2);
break;
}
case GST_MTS_DESC_DVB_FREQUENCY_LIST:
{
gboolean offset;
GArray *list;
if (gst_mpegts_descriptor_parse_dvb_frequency_list (desc, &offset,
&list)) {
guint j;
for (j = 0; j < list->len; j++) {
guint32 freq = g_array_index (list, guint32, j);
g_printf ("%*s Frequency : %u %s\n", spacing, "", freq,
offset ? "kHz" : "Hz");
}
g_array_unref (list);
}
break;
}
case GST_MTS_DESC_ISO_639_LANGUAGE:
dump_iso_639_language (desc, spacing + 2);
break;
case GST_MTS_DESC_DVB_SHORT_EVENT:
{
gchar *language_code, *event_name, *text;
if (gst_mpegts_descriptor_parse_dvb_short_event (desc, &language_code,
&event_name, &text)) {
g_printf ("%*s Short Event, language_code:%s\n", spacing, "",
language_code);
g_printf ("%*s event_name : %s\n", spacing, "", event_name);
g_printf ("%*s text : %s\n", spacing, "", text);
g_free (language_code);
g_free (event_name);
g_free (text);
}
}
break;
case GST_MTS_DESC_DVB_EXTENDED_EVENT:
{
dump_dvb_extended_event (desc, spacing + 2);
break;
}
case GST_MTS_DESC_DVB_SUBTITLING:
{
gchar lang[4];
guint8 type;
guint16 composition;
guint16 ancillary;
guint j;
for (j = 0;
gst_mpegts_descriptor_parse_dvb_subtitling_idx (desc, j, &lang,
&type, &composition, &ancillary); j++) {
g_printf ("%*s Subtitling, language_code:%s\n", spacing, "", lang);
g_printf ("%*s type : %u\n", spacing, "", type);
g_printf ("%*s composition page id : %u\n", spacing, "",
composition);
g_printf ("%*s ancillary page id : %u\n", spacing, "",
ancillary);
}
}
break;
case GST_MTS_DESC_DVB_TELETEXT:
{
GstMpegTsDVBTeletextType type;
gchar lang[4];
guint8 magazine, page_number;
guint j;
for (j = 0;
gst_mpegts_descriptor_parse_dvb_teletext_idx (desc, j, &lang, &type,
&magazine, &page_number); j++) {
g_printf ("%*s Teletext, type:0x%02x (%s)\n", spacing, "", type,
enum_name (GST_TYPE_MPEG_TS_DVB_TELETEXT_TYPE, type));
g_printf ("%*s language : %s\n", spacing, "", lang);
g_printf ("%*s magazine : %u\n", spacing, "", magazine);
g_printf ("%*s page number : %u\n", spacing, "", page_number);
}
}
break;
default:
break;
}
}
}
static void
dump_pat (GstMpegTsSection * section)
{
GPtrArray *pat = gst_mpegts_section_get_pat (section);
guint i, len;
len = pat->len;
g_printf (" %d program(s):\n", len);
for (i = 0; i < len; i++) {
GstMpegTsPatProgram *patp = g_ptr_array_index (pat, i);
g_print
(" program_number:%6d (0x%04x), network_or_program_map_PID:0x%04x\n",
patp->program_number, patp->program_number,
patp->network_or_program_map_PID);
}
g_ptr_array_unref (pat);
}
static void
dump_pmt (GstMpegTsSection * section)
{
const GstMpegTsPMT *pmt = gst_mpegts_section_get_pmt (section);
guint i, len;
g_printf (" program_number : 0x%04x\n", section->subtable_extension);
g_printf (" pcr_pid : 0x%04x\n", pmt->pcr_pid);
dump_descriptors (pmt->descriptors, 7);
len = pmt->streams->len;
g_printf (" %d Streams:\n", len);
for (i = 0; i < len; i++) {
GstMpegTsPMTStream *stream = g_ptr_array_index (pmt->streams, i);
g_printf (" pid:0x%04x , stream_type:0x%02x (%s)\n", stream->pid,
stream->stream_type,
enum_name (GST_TYPE_MPEG_TS_STREAM_TYPE, stream->stream_type));
dump_descriptors (stream->descriptors, 9);
}
}
static void
dump_eit (GstMpegTsSection * section)
{
const GstMpegTsEIT *eit = gst_mpegts_section_get_eit (section);
guint i, len;
g_assert (eit);
g_printf (" service_id : 0x%04x\n", section->subtable_extension);
g_printf (" transport_stream_id : 0x%04x\n", eit->transport_stream_id);
g_printf (" original_network_id : 0x%04x\n", eit->original_network_id);
g_printf (" segment_last_section_number:0x%02x, last_table_id:0x%02x\n",
eit->segment_last_section_number, eit->last_table_id);
g_printf (" actual_stream : %s, present_following : %s\n",
eit->actual_stream ? "TRUE" : "FALSE",
eit->present_following ? "TRUE" : "FALSE");
len = eit->events->len;
g_printf (" %d Event(s):\n", len);
for (i = 0; i < len; i++) {
gchar *tmp = (gchar *) "<NO TIME>";
GstMpegTsEITEvent *event = g_ptr_array_index (eit->events, i);
if (event->start_time)
tmp = gst_date_time_to_iso8601_string (event->start_time);
g_printf (" event_id:0x%04x, start_time:%s, duration:%"
GST_TIME_FORMAT "\n", event->event_id, tmp,
GST_TIME_ARGS (event->duration * GST_SECOND));
g_printf (" running_status:0x%02x (%s), free_CA_mode:%d (%s)\n",
event->running_status, enum_name (GST_TYPE_MPEG_TS_RUNNING_STATUS,
event->running_status), event->free_CA_mode,
event->free_CA_mode ? "MAYBE SCRAMBLED" : "NOT SCRAMBLED");
if (event->start_time)
g_free (tmp);
dump_descriptors (event->descriptors, 9);
}
}
static void
dump_ett (GstMpegTsSection * section)
{
const GstMpegTsAtscETT *ett = gst_mpegts_section_get_atsc_ett (section);
guint i, len;
g_assert (ett);
g_printf (" service_id : 0x%04x\n", section->subtable_extension);
g_printf (" protocol_version : 0x%04x\n", ett->protocol_version);
g_printf (" etm_id : 0x%04x\n", ett->etm_id);
len = ett->messages->len;
g_printf (" %d Messages(s):\n", len);
for (i = 0; i < len; i++) {
gint j, n;
GstMpegTsAtscMultString *mstring = g_ptr_array_index (ett->messages, i);
n = mstring->segments->len;
g_printf (" iso_639_langcode:%s\n", mstring->iso_639_langcode);
g_printf (" segments:%d\n", n);
for (j = 0; j < n; j++) {
GstMpegTsAtscStringSegment *segment =
g_ptr_array_index (mstring->segments, j);
g_printf (" Compression:0x%x\n",
segment->compression_type);
g_printf (" Mode:0x%x\n", segment->mode);
g_printf (" Len:%u\n",
segment->compressed_data_size);
g_printf (" %s\n",
gst_mpegts_atsc_string_segment_get_string (segment));
}
}
}
static void
dump_stt (GstMpegTsSection * section)
{
const GstMpegTsAtscSTT *stt = gst_mpegts_section_get_atsc_stt (section);
GstDateTime *dt;
gchar *dt_str = NULL;
g_assert (stt);
dt = gst_mpegts_atsc_stt_get_datetime_utc ((GstMpegTsAtscSTT *) stt);
if (dt)
dt_str = gst_date_time_to_iso8601_string (dt);
g_printf (" protocol_version : 0x%04x\n", stt->protocol_version);
g_printf (" system_time : 0x%08x\n", stt->system_time);
g_printf (" gps_utc_offset : %d\n", stt->gps_utc_offset);
g_printf (" daylight saving : %d day:%d hour:%d\n", stt->ds_status,
stt->ds_dayofmonth, stt->ds_hour);
g_printf (" utc datetime : %s", dt_str);
g_free (dt_str);
gst_date_time_unref (dt);
}
static void
dump_nit (GstMpegTsSection * section)
{
const GstMpegTsNIT *nit = gst_mpegts_section_get_nit (section);
guint i, len;
g_assert (nit);
g_printf (" network_id : 0x%04x\n", section->subtable_extension);
g_printf (" actual_network : %s\n",
nit->actual_network ? "TRUE" : "FALSE");
dump_descriptors (nit->descriptors, 7);
len = nit->streams->len;
g_printf (" %d Streams:\n", len);
for (i = 0; i < len; i++) {
GstMpegTsNITStream *stream = g_ptr_array_index (nit->streams, i);
g_printf
(" transport_stream_id:0x%04x , original_network_id:0x%02x\n",
stream->transport_stream_id, stream->original_network_id);
dump_descriptors (stream->descriptors, 9);
}
}
static void
dump_bat (GstMpegTsSection * section)
{
const GstMpegTsBAT *bat = gst_mpegts_section_get_bat (section);
guint i, len;
g_assert (bat);
g_printf (" bouquet_id : 0x%04x\n", section->subtable_extension);
dump_descriptors (bat->descriptors, 7);
len = bat->streams->len;
g_printf (" %d Streams:\n", len);
for (i = 0; i < len; i++) {
GstMpegTsBATStream *stream = g_ptr_array_index (bat->streams, i);
g_printf
(" transport_stream_id:0x%04x , original_network_id:0x%02x\n",
stream->transport_stream_id, stream->original_network_id);
dump_descriptors (stream->descriptors, 9);
}
}
static void
dump_sdt (GstMpegTsSection * section)
{
const GstMpegTsSDT *sdt = gst_mpegts_section_get_sdt (section);
guint i, len;
g_assert (sdt);
g_printf (" original_network_id : 0x%04x\n", sdt->original_network_id);
g_printf (" actual_ts : %s\n",
sdt->actual_ts ? "TRUE" : "FALSE");
len = sdt->services->len;
g_printf (" %d Services:\n", len);
for (i = 0; i < len; i++) {
GstMpegTsSDTService *service = g_ptr_array_index (sdt->services, i);
g_print
(" service_id:0x%04x, EIT_schedule_flag:%d, EIT_present_following_flag:%d\n",
service->service_id, service->EIT_schedule_flag,
service->EIT_present_following_flag);
g_print
(" running_status:0x%02x (%s), free_CA_mode:%d (%s)\n",
service->running_status,
enum_name (GST_TYPE_MPEG_TS_RUNNING_STATUS, service->running_status),
service->free_CA_mode,
service->free_CA_mode ? "MAYBE SCRAMBLED" : "NOT SCRAMBLED");
dump_descriptors (service->descriptors, 9);
}
}
static void
dump_tdt (GstMpegTsSection * section)
{
GstDateTime *date = gst_mpegts_section_get_tdt (section);
if (date) {
gchar *str = gst_date_time_to_iso8601_string (date);
g_printf (" utc_time : %s\n", str);
g_free (str);
gst_date_time_unref (date);
} else {
g_printf (" No utc_time present\n");
}
}
static void
dump_tot (GstMpegTsSection * section)
{
const GstMpegTsTOT *tot = gst_mpegts_section_get_tot (section);
gchar *str = gst_date_time_to_iso8601_string (tot->utc_time);
g_printf (" utc_time : %s\n", str);
dump_descriptors (tot->descriptors, 7);
g_free (str);
}
static void
dump_mgt (GstMpegTsSection * section)
{
const GstMpegTsAtscMGT *mgt = gst_mpegts_section_get_atsc_mgt (section);
gint i;
g_printf (" protocol_version : %u\n", mgt->protocol_version);
g_printf (" tables number : %d\n", mgt->tables->len);
for (i = 0; i < mgt->tables->len; i++) {
GstMpegTsAtscMGTTable *table = g_ptr_array_index (mgt->tables, i);
g_printf (" table %d)\n", i);
g_printf (" table_type : %u\n", table->table_type);
g_printf (" pid : 0x%x\n", table->pid);
g_printf (" version_number: %u\n", table->version_number);
g_printf (" number_bytes : %u\n", table->number_bytes);
dump_descriptors (table->descriptors, 9);
}
dump_descriptors (mgt->descriptors, 7);
}
static void
dump_vct (GstMpegTsSection * section)
{
const GstMpegTsAtscVCT *vct;
gint i;
if (GST_MPEGTS_SECTION_TYPE (section) == GST_MPEGTS_SECTION_ATSC_CVCT) {
vct = gst_mpegts_section_get_atsc_cvct (section);
} else {
/* GST_MPEGTS_SECTION_ATSC_TVCT */
vct = gst_mpegts_section_get_atsc_tvct (section);
}
g_assert (vct);
g_printf (" transport_stream_id : 0x%04x\n", vct->transport_stream_id);
g_printf (" protocol_version : %u\n", vct->protocol_version);
g_printf (" %d Sources:\n", vct->sources->len);
for (i = 0; i < vct->sources->len; i++) {
GstMpegTsAtscVCTSource *source = g_ptr_array_index (vct->sources, i);
g_print (" short_name: %s\n", source->short_name);
g_print (" major_channel_number: %u, minor_channel_number: %u\n",
source->major_channel_number, source->minor_channel_number);
g_print (" modulation_mode: %u\n", source->modulation_mode);
g_print (" carrier_frequency: %u\n", source->carrier_frequency);
g_print (" channel_tsid: %u\n", source->channel_TSID);
g_print (" program_number: %u\n", source->program_number);
g_print (" ETM_location: %u\n", source->ETM_location);
g_print (" access_controlled: %u\n", source->access_controlled);
g_print (" hidden: %u\n", source->hidden);
if (section->table_id == GST_MPEGTS_SECTION_ATSC_CVCT) {
g_print (" path_select: %u\n", source->path_select);
g_print (" out_of_band: %u\n", source->out_of_band);
}
g_print (" hide_guide: %u\n", source->hide_guide);
g_print (" service_type: %u\n", source->service_type);
g_print (" source_id: %u\n", source->source_id);
dump_descriptors (source->descriptors, 9);
}
dump_descriptors (vct->descriptors, 7);
}
static void
dump_section (GstMpegTsSection * section)
{
switch (GST_MPEGTS_SECTION_TYPE (section)) {
case GST_MPEGTS_SECTION_PAT:
dump_pat (section);
break;
case GST_MPEGTS_SECTION_PMT:
dump_pmt (section);
break;
case GST_MPEGTS_SECTION_TDT:
dump_tdt (section);
break;
case GST_MPEGTS_SECTION_TOT:
dump_tot (section);
break;
case GST_MPEGTS_SECTION_SDT:
dump_sdt (section);
break;
case GST_MPEGTS_SECTION_NIT:
dump_nit (section);
break;
case GST_MPEGTS_SECTION_BAT:
dump_bat (section);
break;
case GST_MPEGTS_SECTION_EIT:
dump_eit (section);
break;
case GST_MPEGTS_SECTION_ATSC_MGT:
dump_mgt (section);
break;
case GST_MPEGTS_SECTION_ATSC_CVCT:
case GST_MPEGTS_SECTION_ATSC_TVCT:
dump_vct (section);
break;
case GST_MPEGTS_SECTION_ATSC_ETT:
dump_ett (section);
break;
case GST_MPEGTS_SECTION_ATSC_STT:
dump_stt (section);
break;
default:
g_printf (" Unknown section type\n");
break;
}
}
static void
_on_bus_message (GstBus * bus, GstMessage * message, GMainLoop * mainloop)
{
/* g_printf ("Got message %s\n", GST_MESSAGE_TYPE_NAME (message)); */
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_ERROR:
case GST_MESSAGE_EOS:
g_main_loop_quit (mainloop);
break;
case GST_MESSAGE_ELEMENT:
{
GstMpegTsSection *section;
if ((section = gst_message_parse_mpegts_section (message))) {
const gchar *table_name;
table_name = table_id_name (section->table_id);
g_print
("Got section: PID:0x%04x type:%s (table_id 0x%02x (%s)) at offset %"
G_GUINT64_FORMAT "\n", section->pid,
enum_name (GST_TYPE_MPEG_TS_SECTION_TYPE, section->section_type),
section->table_id, table_name, section->offset);
if (!section->short_section) {
g_print
(" subtable_extension:0x%04x, version_number:0x%02x\n",
section->subtable_extension, section->version_number);
g_print
(" section_number:0x%02x last_section_number:0x%02x crc:0x%08x\n",
section->section_number, section->last_section_number,
section->crc);
}
dump_section (section);
g_printf ("\n\n");
gst_mpegts_section_unref (section);
}
break;
}
default:
break;
}
}
int
main (int argc, gchar ** argv)
{
GstElement *pipeline = NULL;
GError *error = NULL;
GstBus *bus;
GMainLoop *mainloop;
gst_init (&argc, &argv);
gst_mpegts_initialize ();
pipeline = gst_parse_launchv ((const gchar **) &argv[1], &error);
if (error) {
g_printf ("pipeline could not be constructed: %s\n", error->message);
g_error_free (error);
return 1;
}
/* Hack: ensure all enum type classes are loaded */
g_type_class_ref (GST_TYPE_MPEG_TS_SECTION_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_SECTION_TABLE_ID);
g_type_class_ref (GST_TYPE_MPEG_TS_RUNNING_STATUS);
g_type_class_ref (GST_TYPE_MPEG_TS_DESCRIPTOR_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_DVB_DESCRIPTOR_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_ATSC_DESCRIPTOR_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_ISDB_DESCRIPTOR_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_MISC_DESCRIPTOR_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_ISO639_AUDIO_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_DVB_SERVICE_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_DVB_TELETEXT_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_STREAM_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_SECTION_DVB_TABLE_ID);
g_type_class_ref (GST_TYPE_MPEG_TS_SECTION_ATSC_TABLE_ID);
g_type_class_ref (GST_TYPE_MPEG_TS_SECTION_SCTE_TABLE_ID);
g_type_class_ref (GST_TYPE_MPEG_TS_MODULATION_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TS_DVB_CODE_RATE);
g_type_class_ref (GST_TYPE_MPEG_TS_CABLE_OUTER_FEC_SCHEME);
g_type_class_ref (GST_TYPE_MPEG_TS_TERRESTRIAL_TRANSMISSION_MODE);
g_type_class_ref (GST_TYPE_MPEG_TS_TERRESTRIAL_GUARD_INTERVAL);
g_type_class_ref (GST_TYPE_MPEG_TS_TERRESTRIAL_HIERARCHY);
mainloop = g_main_loop_new (NULL, FALSE);
/* Put a bus handler */
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_signal_watch (bus);
g_signal_connect (bus, "message", (GCallback) _on_bus_message, mainloop);
/* Start pipeline */
gst_element_set_state (pipeline, GST_STATE_PLAYING);
g_main_loop_run (mainloop);
gst_element_set_state (pipeline, GST_STATE_NULL);
gst_object_unref (pipeline);
gst_object_unref (bus);
return 0;
}
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