tests: add example for injecting MPEG-TS sections

tests/examples/mpegts/meson.build

@@ -1,7 +1,11 @@
-executable('tsparser',
-  'ts-parser.c',
-  install: false,
-  include_directories : [configinc],
-  dependencies : [gstmpegts_dep],
-  c_args : ['-DHAVE_CONFIG_H=1', '-DGST_USE_UNSTABLE_API' ],
-)
+foreach fname : ['ts-parser.c', 'ts-section-writer.c']
+  exe_name = fname.split('.').get(0).underscorify()
+
+  executable(exe_name,
+    fname,
+    install: false,
+    include_directories : [configinc],
+    dependencies : [gstmpegts_dep],
+    c_args : ['-DHAVE_CONFIG_H=1', '-DGST_USE_UNSTABLE_API' ],
+  )
+endforeach

tests/examples/mpegts/ts-section-writer.c

@@ -0,0 +1,90 @@
+#include <gst/gst.h>
+#include <gst/mpegts/mpegts.h>
+
+#define PIPELINE_STR "videotestsrc num-buffers=100 ! x264enc ! queue ! mpegtsmux name=mux ! fakesink"
+
+static void
+_on_bus_message (GstBus * bus, GstMessage * message, GMainLoop * mainloop)
+{
+  switch (GST_MESSAGE_TYPE (message)) {
+    case GST_MESSAGE_ERROR:
+    case GST_MESSAGE_EOS:
+      g_main_loop_quit (mainloop);
+      break;
+    default:
+      break;
+  }
+}
+
+static void
+advertise_service (GstElement * mux)
+{
+  GstMpegtsSDTService *service;
+  GstMpegtsSDT *sdt;
+  GstMpegtsDescriptor *desc;
+  GstMpegtsSection *section;
+
+  sdt = gst_mpegts_sdt_new ();
+
+  sdt->actual_ts = TRUE;
+  sdt->transport_stream_id = 42;
+
+  service = gst_mpegts_sdt_service_new ();
+  service->service_id = 42;
+  service->running_status =
+      GST_MPEGTS_RUNNING_STATUS_RUNNING + service->service_id;
+  service->EIT_schedule_flag = FALSE;
+  service->EIT_present_following_flag = FALSE;
+  service->free_CA_mode = FALSE;
+
+  desc = gst_mpegts_descriptor_from_dvb_service
+      (GST_DVB_SERVICE_DIGITAL_TELEVISION, "some-service", NULL);
+
+  g_ptr_array_add (service->descriptors, desc);
+  g_ptr_array_add (sdt->services, service);
+
+  section = gst_mpegts_section_from_sdt (sdt);
+  gst_mpegts_section_send_event (section, mux);
+  gst_mpegts_section_unref (section);
+}
+
+int
+main (int argc, char **argv)
+{
+  GstElement *pipeline = NULL;
+  GError *error = NULL;
+  GstBus *bus;
+  GMainLoop *mainloop;
+  GstElement *mux;
+
+  gst_init (&argc, &argv);
+
+  pipeline = gst_parse_launch (PIPELINE_STR, &error);
+  if (error) {
+    g_print ("pipeline could not be constructed: %s\n", error->message);
+    g_clear_error (&error);
+    return 1;
+  }
+
+  mainloop = g_main_loop_new (NULL, FALSE);
+
+  mux = gst_bin_get_by_name (GST_BIN (pipeline), "mux");
+  advertise_service (mux);
+  gst_object_unref (mux);
+
+  /* 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;
+}