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examples: Add an example of a mpeg-ts SI extractor

Browse source 
Serves as an example of usage of the new mpegts library from an
application.

Will parse/dump all sections received on a bus.

Usage is ./tsparse <any gst-launch line using tsdemux or tsparse>

Examples:
  ./tsparse file:///some/mpegtsfile ! tsparse ! fakesink
  ./tsparse dvb://CHANNEL ! tsparse ! fakesink
  ./tsparse playbin uri=dvb://CHANNEL
  ./tsparse playbin uri=file:///some/mpegtsfile
  ...

https://bugzilla.gnome.org/show_bug.cgi?id=702724
This commit is contained in:
Edward Hervey 2013-07-01 08:35:26 +02:00
parent 10c929c795
commit dc160e7ca7
4 changed files with 421 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
configure.ac
View file

@ -2461,6 +2461,7 @@ tests/files/Makefile
tests/examples/Makefile
tests/examples/camerabin2/Makefile
tests/examples/directfb/Makefile
tests/examples/mpegts/Makefile
tests/examples/mxf/Makefile
tests/examples/opencv/Makefile
tests/examples/uvch264/Makefile

4
tests/examples/Makefile.am
View file

@ -18,7 +18,7 @@ endif
OPENCV_EXAMPLES=opencv
SUBDIRS= $(DIRECTFB_DIR) $(GTK_EXAMPLES) $(OPENCV_EXAMPLES)
DIST_SUBDIRS= camerabin2 directfb mxf opencv uvch264
SUBDIRS= mpegts $(DIRECTFB_DIR) $(GTK_EXAMPLES) $(OPENCV_EXAMPLES)
DIST_SUBDIRS= mpegts camerabin2 directfb mxf opencv uvch264
include $(top_srcdir)/common/parallel-subdirs.mak

7
tests/examples/mpegts/Makefile.am Normal file
View file

@ -0,0 +1,7 @@
noinst_PROGRAMS = tsparser
tsparser_SOURCES = ts-parser.c
tsparser_CFLAGS = $(GST_PLUGINS_BAD_CFLAGS) $(GST_CFLAGS)
tsparser_LDFLAGS = $(GST_LIBS)
tsparser_LDADD = \
$(top_builddir)/gst-libs/gst/mpegts/libgstmpegts-$(GST_API_VERSION).la

411
tests/examples/mpegts/ts-parser.c Normal file
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@ -0,0 +1,411 @@
/* 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
#include <glib.h>
#include <glib-object.h>
#include <glib/gprintf.h>
#include <gst/gst.h>
#include <gst/mpegts/mpegts.h>
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\n", spacing, "", res.outer_fec);
g_printf ("%*s modulation : %d\n", spacing, "", res.modulation);
g_printf ("%*s Symbol rate : %d sym/s\n", spacing, "", res.symbol_rate);
g_printf ("%*s Inner FEC : %d\n", spacing, "", res.fec_inner);
}
}
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_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_descriptors (GArray * descriptors, guint spacing)
{
guint i;
for (i = 0; i < descriptors->len; i++) {
GstMpegTSDescriptor *desc =
&g_array_index (descriptors, GstMpegTSDescriptor, i);
g_printf ("%*s [descriptor 0x%02x (%s)]\n", spacing, "",
desc->descriptor_tag, enum_name (GST_TYPE_MPEG_TS_DESCRIPTOR_TYPE,
desc->descriptor_tag));
switch (desc->descriptor_tag) {
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_CABLE_DELIVERY_SYSTEM:
dump_cable_delivery_descriptor (desc, spacing + 2);
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_TSDVB_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_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;
default:
break;
}
}
}
static void
dump_pat (GstMpegTSSection * section)
{
GArray *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_array_index (pat, GstMpegTSPatProgram, 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_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\n", stream->pid,
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;
GstMpegTSEITEvent *event = g_ptr_array_index (eit->events, i);
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");
g_free (tmp);
dump_descriptors (event->descriptors, 9);
}
}
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_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);
gchar *str = gst_date_time_to_iso8601_string (date);
g_printf (" utc_time : %s\n", str);
g_free (str);
gst_date_time_unref (date);
}
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_SDT:
dump_sdt (section);
break;
case GST_MPEGTS_SECTION_NIT:
dump_nit (section);
break;
case GST_MPEGTS_SECTION_EIT:
dump_eit (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))) {
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, enum_name (GST_TYPE_MPEG_TS_SECTION_TABLE_ID,
section->table_id), 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_ISO639_AUDIO_TYPE);
g_type_class_ref (GST_TYPE_MPEG_TSDVB_SERVICE_TYPE);
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);
return 0;
}