int main (int argc, char *argv[]) { gchar **filenames = NULL; guint num, i; GError *err = NULL; GOptionContext *ctx; GOptionEntry options[] = { GST_TOOLS_GOPTION_VERSION, {G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &filenames, NULL}, {NULL} }; #ifdef ENABLE_NLS bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); textdomain (GETTEXT_PACKAGE); #endif #if !GLIB_CHECK_VERSION (2, 31, 0) g_thread_init (NULL); #endif gst_tools_set_prgname ("gst-typefind"); ctx = g_option_context_new ("FILES"); g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE); g_option_context_add_group (ctx, gst_init_get_option_group ()); if (!g_option_context_parse (ctx, &argc, &argv, &err)) { g_print ("Error initializing: %s\n", GST_STR_NULL (err->message)); exit (1); } g_option_context_free (ctx); gst_tools_print_version ("gst-typefind"); if (filenames == NULL || *filenames == NULL) { g_print ("Please give a filename to typefind\n\n"); return 1; } num = g_strv_length (filenames); for (i = 0; i < num; ++i) { typefind_file (filenames[i]); } g_strfreev (filenames); return 0; }
static void typefind_file (const gchar * filename) { GstStateChangeReturn sret; GstElement *pipeline; GstElement *source; GstElement *typefind; GstElement *fakesink; GstState state; GstCaps *caps = NULL; GDir *dir; if ((dir = g_dir_open (filename, 0, NULL))) { const gchar *entry; while ((entry = g_dir_read_name (dir))) { gchar *path; path = g_strconcat (filename, G_DIR_SEPARATOR_S, entry, NULL); typefind_file (path); g_free (path); } g_dir_close (dir); return; } pipeline = gst_pipeline_new ("pipeline"); source = gst_element_factory_make ("filesrc", "source"); g_assert (GST_IS_ELEMENT (source)); typefind = gst_element_factory_make ("typefind", "typefind"); g_assert (GST_IS_ELEMENT (typefind)); fakesink = gst_element_factory_make ("fakesink", "fakesink"); g_assert (GST_IS_ELEMENT (typefind)); gst_bin_add_many (GST_BIN (pipeline), source, typefind, fakesink, NULL); gst_element_link_many (source, typefind, fakesink, NULL); g_signal_connect (G_OBJECT (typefind), "have-type", G_CALLBACK (have_type_handler), &caps); g_object_set (source, "location", filename, NULL); GST_DEBUG ("Starting typefinding for %s", filename); /* typefind will only commit to PAUSED if it actually finds a type; * otherwise the state change fails */ gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PAUSED); /* wait until state change either completes or fails */ sret = gst_element_get_state (GST_ELEMENT (pipeline), &state, NULL, -1); switch (sret) { case GST_STATE_CHANGE_FAILURE:{ GstMessage *msg; GstBus *bus; GError *err = NULL; bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); msg = gst_bus_poll (bus, GST_MESSAGE_ERROR, 0); gst_object_unref (bus); if (msg) { gst_message_parse_error (msg, &err, NULL); g_printerr ("%s - FAILED: %s\n", filename, err->message); g_error_free (err); gst_message_unref (msg); } else { g_printerr ("%s - FAILED: unknown error\n", filename); } break; } case GST_STATE_CHANGE_SUCCESS:{ if (caps) { gchar *caps_str; caps_str = gst_caps_to_string (caps); g_print ("%s - %s\n", filename, caps_str); g_free (caps_str); gst_caps_unref (caps); } else { g_print ("%s - %s\n", filename, "No type found"); } break; } default: g_assert_not_reached (); } gst_element_set_state (pipeline, GST_STATE_NULL); gst_object_unref (pipeline); }