diff options
Diffstat (limited to 'ext/metadata/test/metadata_editor.c')
| -rw-r--r-- | ext/metadata/test/metadata_editor.c | 1015 |
1 files changed, 0 insertions, 1015 deletions
diff --git a/ext/metadata/test/metadata_editor.c b/ext/metadata/test/metadata_editor.c deleted file mode 100644 index f24f9994..00000000 --- a/ext/metadata/test/metadata_editor.c +++ /dev/null @@ -1,1015 +0,0 @@ -/* - * GStreamer - * Copyright 2007 Edgard Lima <edgard.lima@indt.org.br> - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Alternatively, the contents of this file may be used under the - * GNU Lesser General Public License Version 2.1 (the "LGPL"), in - * which case the following provisions apply instead of the ones - * mentioned above: - * - * 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., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#include <stdio.h> -#include <string.h> -#include <unistd.h> - -#include <gst/gst.h> -#include <glade/glade-xml.h> -#include <gtk/gtk.h> -#include <gst/interfaces/xoverlay.h> -#include <gdk/gdkx.h> - -/* - * Global constants - */ - -enum -{ - COL_TAG = 0, - COL_VALUE, - NUM_COLS -}; - -#define ENC_ERROR (-1) -#define ENC_DONE (0) -#define ENC_UNKNOWN (1) - - -/* - * functions prototypes - */ - -/* gstreamer related functions */ - -static void me_gst_cleanup_elements (); -static int -me_gst_setup_view_pipeline (const gchar * filename, GdkWindow * window); -static int -me_gst_setup_capture_pipeline (const gchar * src_file, const gchar * dest_file, - gint * encode_status); -static int -me_gst_setup_encode_pipeline (const gchar * src_file, const gchar * dest_file, - gint * encode_status); - -/* ui related functions */ - -static void ui_refresh (); - -/* - * Global Vars - */ - -GstElement *gst_source = NULL; -GstElement *gst_metadata_demux = NULL; -GstElement *gst_metadata_mux = NULL; -GstElement *gst_image_dec = NULL; -GstElement *gst_image_enc = NULL; -GstElement *gst_video_scale = NULL; -GstElement *gst_video_convert = NULL; -GstElement *gst_video_sink = NULL; -GstElement *gst_file_sink = NULL; -GstElement *gst_pipeline = NULL; - -GstTagList *tag_list = NULL; - -GladeXML *ui_glade_xml = NULL; -GtkWidget *ui_main_window = NULL; -GtkWidget *ui_drawing = NULL; -GtkWidget *ui_tree = NULL; - -GtkEntry *ui_entry_insert_tag = NULL; -GtkEntry *ui_entry_insert_value = NULL; - -GtkToggleButton *ui_chk_bnt_capture = NULL; - -GString *filename = NULL; - -/* - * Helper functions - */ - -static void -insert_tag_on_tree (const GstTagList * list, const gchar * tag, - gpointer user_data) -{ - gchar *str = NULL; - GtkTreeView *tree_view = NULL; - GtkTreeStore *tree_store = NULL; - GtkTreeIter iter; - - tree_view = GTK_TREE_VIEW (user_data); - - if (gst_tag_get_type (tag) == G_TYPE_STRING) { - if (!gst_tag_list_get_string_index (list, tag, 0, &str)) - g_assert_not_reached (); - } else { - str = g_strdup_value_contents (gst_tag_list_get_value_index (list, tag, 0)); - } - - tree_store = GTK_TREE_STORE (gtk_tree_view_get_model (tree_view)); - gtk_tree_store_append (tree_store, &iter, NULL); - gtk_tree_store_set (tree_store, &iter, COL_TAG, tag, COL_VALUE, str, -1); - - if (str) - g_free (str); - -} - -static gboolean -change_tag_list (GstTagList ** list, const gchar * tag, const gchar * value) -{ - GType type; - gboolean ret = FALSE; - - if (list == NULL || tag == NULL || value == NULL) - goto done; - - if (!gst_tag_exists (tag)) { - fprintf (stderr, "%s is not a GStreamer registered tag\n", tag); - goto done; - } - - if (*list == NULL) - *list = gst_tag_list_new (); - - type = gst_tag_get_type (tag); - - if (type == GST_TYPE_FRACTION) { - /* FIXME: Ask GStreamer guys to add GST_FRACTION support to TAGS */ - /* Even better: ask GLib guys to add this type */ - gint n, d; - - sscanf (value, "%d/%d", &n, &d); - gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, n, d, NULL); - ret = TRUE; - } else { - switch (type) { - case G_TYPE_STRING: - gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, value, NULL); - ret = TRUE; - break; - case G_TYPE_FLOAT: - { - gfloat fv = (gfloat) g_strtod (value, NULL); - - gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, fv, NULL); - ret = TRUE; - } - break; - case G_TYPE_INT: - /* fall through */ - case G_TYPE_UINT: - { - gint iv = atoi (value); - - gst_tag_list_add (*list, GST_TAG_MERGE_REPLACE, tag, iv, NULL); - ret = TRUE; - } - break; - default: - fprintf (stderr, "This app still doesn't handle type (%s)(%ld)\n", - g_type_name (type), type); - break; - } - } - -done: - - return ret; - -} - - -/* - * UI handling functions (mapped by glade) - */ - -gboolean -on_windowMain_configure_event (GtkWidget * widget, GdkEventConfigure * event, - gpointer user_data) -{ - GstXOverlay *xoverlay; - - if (gst_video_sink) { - - xoverlay = GST_X_OVERLAY (gst_video_sink); - - if (xoverlay != NULL && GST_IS_X_OVERLAY (xoverlay)) { - gst_x_overlay_expose (xoverlay); - } - - } - - return FALSE; -} - -gboolean -on_drawingMain_expose_event (GtkWidget * widget, GdkEventExpose * event, - gpointer data) -{ - if (gst_video_sink) { - gst_x_overlay_set_xwindow_id (GST_X_OVERLAY (gst_video_sink), - GDK_WINDOW_XWINDOW (widget->window)); - } - return FALSE; -} - -void -on_windowMain_delete_event (GtkWidget * widget, GdkEvent * event, - gpointer user_data) -{ - gst_element_set_state (gst_pipeline, GST_STATE_NULL); - gst_element_get_state (gst_pipeline, NULL, NULL, GST_CLOCK_TIME_NONE); - gtk_main_quit (); -} - -void -on_buttonInsert_clicked (GtkButton * button, gpointer user_data) -{ - GtkTreeStore *store = NULL; - GtkTreeIter iter; - const gchar *tag = gtk_entry_get_text (ui_entry_insert_tag); - const gchar *value = gtk_entry_get_text (ui_entry_insert_value); - - if (tag && value && tag[0] != '\0') { - - /* insert just new tags (the ones already in list should be modified) */ - if (gst_tag_list_get_tag_size (tag_list, tag)) { - fprintf (stderr, "%s tag is already in the list try to modify it\n", tag); - } else { - if (change_tag_list (&tag_list, tag, value)) { - /* just add to ui_tree if it has been added to tag_list */ - store = - GTK_TREE_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (ui_tree))); - gtk_tree_store_append (store, &iter, NULL); - gtk_tree_store_set (store, &iter, COL_TAG, tag, COL_VALUE, value, -1); - } - } - - } - - return; - -} - -static void -setup_new_filename (GString * str, const gchar * ext) -{ - int i = 0; - - for (i = str->len - 1; i > 0; --i) { - if (str->str[i] == '/') { - ++i; - break; - } - } - g_string_insert (str, i, "_new_"); - if (ext) { - int len = strlen (ext); - - if (len > str->len) - g_string_append (str, ext); - else if (strcasecmp (ext, &str->str[str->len - len])) - g_string_append (str, ext); - - } -} - -void -on_buttonSaveFile_clicked (GtkButton * button, gpointer user_data) -{ - - GString *src_file = NULL; - gint enc_status = ENC_UNKNOWN; - - gst_element_set_state (gst_pipeline, GST_STATE_NULL); - gst_element_get_state (gst_pipeline, NULL, NULL, GST_CLOCK_TIME_NONE); - - src_file = g_string_new (filename->str); - - if (gtk_toggle_button_get_active (ui_chk_bnt_capture)) { - setup_new_filename (filename, ".jpg"); - if (me_gst_setup_capture_pipeline (src_file->str, filename->str, - &enc_status)) { - goto done; - } - } else { - setup_new_filename (filename, NULL); - if (me_gst_setup_encode_pipeline (src_file->str, filename->str, - &enc_status)) { - goto done; - } - } - - ui_refresh (); - remove (filename->str); - - if (tag_list && gst_metadata_mux) { - GstTagSetter *setter = GST_TAG_SETTER (gst_metadata_mux); - - if (setter) { - gst_element_set_state (gst_pipeline, GST_STATE_READY); - gst_element_get_state (gst_pipeline, NULL, NULL, GST_CLOCK_TIME_NONE); - - gst_tag_setter_merge_tags (setter, tag_list, GST_TAG_MERGE_REPLACE); - - } - } - - gst_element_set_state (gst_pipeline, GST_STATE_PLAYING); - gst_element_get_state (gst_pipeline, NULL, NULL, GST_CLOCK_TIME_NONE); - - /* wait until finished */ - gtk_main (); - - gst_element_set_state (gst_pipeline, GST_STATE_NULL); - gst_element_get_state (gst_pipeline, NULL, NULL, GST_CLOCK_TIME_NONE); - - if (enc_status == ENC_DONE) { - - /* view new file */ - if (tag_list) { - gst_tag_list_free (tag_list); - tag_list = NULL; - } - - me_gst_setup_view_pipeline (filename->str, ui_drawing->window); - - gst_element_set_state (gst_pipeline, GST_STATE_PLAYING); - gst_element_get_state (gst_pipeline, NULL, NULL, GST_CLOCK_TIME_NONE); - - } - -done: - - if (src_file) - g_string_free (src_file, TRUE); - -} - -void -on_checkbuttonCapture_toggled (GtkToggleButton * togglebutton, - gpointer user_data) -{ - if (gtk_toggle_button_get_active (togglebutton)) { - } -} - -/* - * UI handling functions - */ - -void -on_cell_edited (GtkCellRendererText * renderer, gchar * str_path, - gchar * new_text, gpointer user_data) -{ - GtkTreePath *path = NULL; - GtkTreeIter iter; - GtkTreeModel *model = NULL; - const guint32 col_index = (guint32) user_data; - const gchar *tag = gtk_entry_get_text (ui_entry_insert_tag); - - path = gtk_tree_path_new_from_string (str_path); - model = gtk_tree_view_get_model (GTK_TREE_VIEW (ui_tree)); - - if (change_tag_list (&tag_list, tag, new_text)) { - - if (gtk_tree_model_get_iter (model, &iter, path)) { - gtk_tree_store_set (GTK_TREE_STORE (model), &iter, col_index, new_text, - -1); - gtk_entry_set_text (ui_entry_insert_value, new_text); - } - - } - - if (path) - gtk_tree_path_free (path); - -} - -static void -on_tree_selection_changed (GtkTreeSelection * selection, gpointer data) -{ - GtkTreeIter iter; - GtkTreeModel *model; - - if (gtk_tree_selection_get_selected (selection, &model, &iter)) { - gchar *tag; - gchar *value; - - gtk_tree_model_get (model, &iter, COL_TAG, &tag, -1); - gtk_tree_model_get (model, &iter, COL_VALUE, &value, -1); - - gtk_entry_set_text (ui_entry_insert_tag, tag); - gtk_entry_set_text (ui_entry_insert_value, value); - - g_free (value); - g_free (tag); - - } - -} - -/* - * UI helper functions - */ - -static int -ui_add_columns (GtkTreeView * tree_view, const gchar * title, gint col_index, - gboolean editable) -{ - GtkCellRenderer *renderer; - GtkTreeViewColumn *tree_col; - int ret = 0; - - renderer = gtk_cell_renderer_text_new (); - - if (editable) { - g_object_set (renderer, "editable", TRUE, NULL); - g_signal_connect (G_OBJECT (renderer), "edited", - G_CALLBACK (on_cell_edited), (gpointer) col_index); - } - - if ((tree_col = gtk_tree_view_column_new_with_attributes (title, renderer, - "text", col_index, NULL))) { - gtk_tree_view_append_column (tree_view, tree_col); - } else { - fprintf (stderr, "UI: could not create column %s\n", title); - ret = -201; - goto done; - } - -done: - - return ret; - -} - - -static int -ui_setup_tree_view (GtkTreeView * tree_view) -{ - int ret = 0; - GtkTreeStore *tree_store = NULL; - GtkTreeSelection *select; - - if ((ret = ui_add_columns (tree_view, "tag", COL_TAG, FALSE))) - goto done; - - if ((ret = ui_add_columns (tree_view, "value", COL_VALUE, TRUE))) - goto done; - - tree_store = gtk_tree_store_new (NUM_COLS, G_TYPE_STRING, G_TYPE_STRING); - - gtk_tree_view_set_model (tree_view, GTK_TREE_MODEL (tree_store)); - - select = gtk_tree_view_get_selection (tree_view); - gtk_tree_selection_set_mode (select, GTK_SELECTION_SINGLE); - g_signal_connect (G_OBJECT (select), "changed", - G_CALLBACK (on_tree_selection_changed), NULL); - -done: - - if (tree_store) - g_object_unref (tree_store); - - return ret; -} - -static void -ui_refresh () -{ - GtkTreeStore *store = - GTK_TREE_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (ui_tree))); - gtk_tree_store_clear (store); - if (filename) - gtk_window_set_title (GTK_WINDOW (ui_main_window), filename->str); -} - -static int -ui_create () -{ - int ret = 0; - - ui_glade_xml = glade_xml_new ("MetadataEditorMain.glade", NULL, NULL); - - if (!ui_glade_xml) { - fprintf (stderr, "glade_xml_new failed\n"); - ret = -101; - goto done; - } - - ui_main_window = glade_xml_get_widget (ui_glade_xml, "windowMain"); - - ui_drawing = glade_xml_get_widget (ui_glade_xml, "drawingMain"); - - ui_tree = glade_xml_get_widget (ui_glade_xml, "treeMain"); - - ui_entry_insert_tag = - GTK_ENTRY (glade_xml_get_widget (ui_glade_xml, "entryTag")); - - ui_entry_insert_value = - GTK_ENTRY (glade_xml_get_widget (ui_glade_xml, "entryValue")); - - ui_chk_bnt_capture = - GTK_TOGGLE_BUTTON (glade_xml_get_widget (ui_glade_xml, - "checkbuttonCapture")); - - if (!(ui_main_window && ui_drawing && ui_tree && ui_entry_insert_tag - && ui_entry_insert_value && ui_chk_bnt_capture)) { - fprintf (stderr, "Some widgets couldn't be created\n"); - ret = -105; - goto done; - } - - glade_xml_signal_autoconnect (ui_glade_xml); - - ui_setup_tree_view (GTK_TREE_VIEW (ui_tree)); - - ui_refresh (); - - gtk_widget_show_all (ui_main_window); - -done: - - return ret; - -} - -/* - * GStreamer functions - */ - - -static gboolean -me_gst_bus_callback_encode (GstBus * bus, GstMessage * message, gpointer data) -{ - gint *encode_status = (gint *) data; - - fflush (stdout); - - switch (GST_MESSAGE_TYPE (message)) { - case GST_MESSAGE_ERROR: - { - GError *err; - gchar *debug; - - gst_message_parse_error (message, &err, &debug); - fprintf (stderr, "Error: %s\n", err->message); - g_error_free (err); - g_free (debug); - - *encode_status = ENC_ERROR; - gtk_main_quit (); - } - break; - case GST_MESSAGE_TAG: - { - /* ignore, we alredy have the tag list */ - } - break; - case GST_MESSAGE_EOS: - { - *encode_status = ENC_DONE; - gtk_main_quit (); - } - break; - default: - /* unhandled message */ - break; - } - - /* we want to be notified again the next time there is a message - * on the bus, so returning TRUE (FALSE means we want to stop watching - * for messages on the bus and our callback should not be called again) - */ - return TRUE; -} - -static gboolean -me_gst_bus_callback_view (GstBus * bus, GstMessage * message, gpointer data) -{ - switch (GST_MESSAGE_TYPE (message)) { - case GST_MESSAGE_ERROR: - { - GError *err; - gchar *debug; - - gst_message_parse_error (message, &err, &debug); - fprintf (stderr, "Error: %s\n", err->message); - g_error_free (err); - g_free (debug); - - gtk_main_quit (); - } - break; - case GST_MESSAGE_TAG: - { - if (tag_list == NULL) - gst_message_parse_tag (message, &tag_list); - else { - GstTagList *tl = NULL; - GstTagList *ntl = NULL; - - gst_message_parse_tag (message, &tl); - if (tl) { - ntl = gst_tag_list_merge (tag_list, tl, GST_TAG_MERGE_PREPEND); - if (ntl) { - gst_tag_list_free (tag_list); - tag_list = ntl; - gst_tag_list_free (tl); - } - } - } - /* remove whole chunk tags */ - gst_tag_list_remove_tag (tag_list, "exif"); - gst_tag_list_remove_tag (tag_list, "iptc"); - gst_tag_list_remove_tag (tag_list, "xmp"); - } - break; - case GST_MESSAGE_EOS: - if (tag_list) { - gst_tag_list_foreach (tag_list, insert_tag_on_tree, ui_tree); - } - break; - default: - /* unhandled message */ - break; - } - - /* we want to be notified again the next time there is a message - * on the bus, so returning TRUE (FALSE means we want to stop watching - * for messages on the bus and our callback should not be called again) - */ - return TRUE; -} - -static void -me_gst_cleanup_elements () -{ - /* when adding an element to pipeline rember to set it to NULL or add extra ref */ - - if (gst_source) { - gst_object_unref (gst_source); - gst_source = NULL; - } - if (gst_metadata_demux) { - gst_object_unref (gst_metadata_demux); - gst_metadata_demux = NULL; - } - if (gst_metadata_mux) { - gst_object_unref (gst_metadata_mux); - gst_metadata_mux = NULL; - } - if (gst_image_dec) { - gst_object_unref (gst_image_dec); - gst_image_dec = NULL; - } - if (gst_image_enc) { - gst_object_unref (gst_image_enc); - gst_image_enc = NULL; - } - if (gst_video_scale) { - gst_object_unref (gst_video_scale); - gst_video_scale = NULL; - } - if (gst_video_convert) { - gst_object_unref (gst_video_convert); - gst_video_convert = NULL; - } - if (gst_video_sink) { - gst_object_unref (gst_video_sink); - gst_video_sink = NULL; - } - if (gst_file_sink) { - gst_object_unref (gst_file_sink); - gst_file_sink = NULL; - } - - if (gst_pipeline) { - gst_element_set_state (gst_pipeline, GST_STATE_NULL); - gst_element_get_state (gst_pipeline, NULL, NULL, GST_CLOCK_TIME_NONE); - gst_object_unref (gst_pipeline); - gst_pipeline = NULL; - } - -} - -/* dummy function that looks the file extension */ -static gboolean -is_png (const gchar * filename) -{ - gboolean ret = FALSE; - guint32 len; - - if (!filename) - goto done; - - if ((len = strlen (filename)) < 4) /* at least ".png" */ - goto done; - - if (0 == strcasecmp (filename + (len - 4), ".png")) - ret = TRUE; - -done: - - return ret; - -} - -static int -me_gst_setup_capture_pipeline (const gchar * src_file, const gchar * dest_file, - gint * encode_status) -{ - int ret = 0; - GstBus *bus = NULL; - gboolean linked; - - *encode_status = ENC_ERROR; - - me_gst_cleanup_elements (); - - /* create elements */ - gst_source = gst_element_factory_make ("v4l2src", NULL); - gst_video_convert = gst_element_factory_make ("ffmpegcolorspace", NULL); - gst_image_enc = gst_element_factory_make ("jpegenc", NULL); - gst_metadata_mux = gst_element_factory_make ("metadatamux", NULL); - gst_file_sink = gst_element_factory_make ("filesink", NULL); - - if (!(gst_source && gst_video_convert && gst_image_enc && gst_metadata_mux - && gst_file_sink)) { - fprintf (stderr, "An element couldn't be created for ecoding\n"); - ret = -300; - goto done; - } - - /* create gst_pipeline */ - gst_pipeline = gst_pipeline_new (NULL); - - if (NULL == gst_pipeline) { - fprintf (stderr, "Pipeline couldn't be created\n"); - ret = -305; - goto done; - } - - /* set elements's properties */ - g_object_set (gst_source, "num-buffers", 1, NULL); - g_object_set (gst_file_sink, "location", dest_file, NULL); - - /* adding and linking elements */ - gst_bin_add_many (GST_BIN (gst_pipeline), gst_source, gst_video_convert, - gst_image_enc, gst_metadata_mux, gst_file_sink, NULL); - - linked = - gst_element_link_many (gst_source, gst_video_convert, gst_image_enc, - gst_metadata_mux, gst_file_sink, NULL); - - /* now element are owned by pipeline (for videosink we keep a extra ref) */ - gst_source = gst_video_convert = gst_image_enc = gst_file_sink = NULL; - gst_object_ref (gst_metadata_mux); - - if (!linked) { - fprintf (stderr, "Elements couldn't be linked\n"); - ret = -310; - goto done; - } - - *encode_status = ENC_UNKNOWN; - - /* adding message bus */ - bus = gst_pipeline_get_bus (GST_PIPELINE (gst_pipeline)); - gst_bus_add_watch (bus, me_gst_bus_callback_encode, encode_status); - gst_object_unref (bus); - -done: - - return ret; - -} - -static int -me_gst_setup_encode_pipeline (const gchar * src_file, const gchar * dest_file, - gint * encode_status) -{ - int ret = 0; - GstBus *bus = NULL; - gboolean linked; - - *encode_status = ENC_ERROR; - - me_gst_cleanup_elements (); - - /* create elements */ - gst_source = gst_element_factory_make ("filesrc", NULL); - gst_metadata_demux = gst_element_factory_make ("metadatademux", NULL); - gst_metadata_mux = gst_element_factory_make ("metadatamux", NULL); - gst_file_sink = gst_element_factory_make ("filesink", NULL); - - - if (!(gst_source && gst_metadata_demux && gst_metadata_mux && gst_file_sink)) { - fprintf (stderr, "An element couldn't be created for ecoding\n"); - ret = -300; - goto done; - } - - - /* create gst_pipeline */ - gst_pipeline = gst_pipeline_new (NULL); - - if (NULL == gst_pipeline) { - fprintf (stderr, "Pipeline couldn't be created\n"); - ret = -305; - goto done; - } - - /* set elements's properties */ - g_object_set (gst_source, "location", src_file, NULL); - g_object_set (gst_file_sink, "location", dest_file, NULL); - - /* adding and linking elements */ - gst_bin_add_many (GST_BIN (gst_pipeline), gst_source, gst_metadata_demux, - gst_metadata_mux, gst_file_sink, NULL); - - linked = - gst_element_link_many (gst_source, gst_metadata_demux, gst_metadata_mux, - gst_file_sink, NULL); - - /* now element are owned by pipeline (for videosink we keep a extra ref) */ - gst_source = gst_metadata_demux = gst_file_sink = NULL; - gst_object_ref (gst_metadata_mux); - - if (!linked) { - fprintf (stderr, "Elements couldn't be linked\n"); - ret = -310; - goto done; - } - - *encode_status = ENC_UNKNOWN; - - /* adding message bus */ - bus = gst_pipeline_get_bus (GST_PIPELINE (gst_pipeline)); - gst_bus_add_watch (bus, me_gst_bus_callback_encode, encode_status); - gst_object_unref (bus); - -done: - - return ret; - -} - -static int -me_gst_setup_view_pipeline (const gchar * filename, GdkWindow * window) -{ - int ret = 0; - GstBus *bus = NULL; - gboolean linked; - - me_gst_cleanup_elements (); - - /* create elements */ - gst_source = gst_element_factory_make ("filesrc", NULL); - gst_metadata_demux = gst_element_factory_make ("metadatademux", NULL); - /* let's do a dummy stuff to avoid decodebin */ - if (is_png (filename)) - gst_image_dec = gst_element_factory_make ("pngdec", NULL); - else - gst_image_dec = gst_element_factory_make ("jpegdec", NULL); - gst_video_scale = gst_element_factory_make ("videoscale", NULL); - gst_video_convert = gst_element_factory_make ("ffmpegcolorspace", NULL); - gst_video_sink = gst_element_factory_make ("ximagesink", NULL); - - if (!(gst_source && gst_metadata_demux && gst_image_dec && gst_video_scale - && gst_video_convert && gst_video_sink)) { - fprintf (stderr, "An element couldn't be created for viewing\n"); - ret = -400; - goto done; - } - - /* create gst_pipeline */ - gst_pipeline = gst_pipeline_new (NULL); - - if (NULL == gst_pipeline) { - fprintf (stderr, "Pipeline couldn't be created\n"); - ret = -405; - goto done; - } - - /* set elements's properties */ - g_object_set (gst_source, "location", filename, NULL); - g_object_set (gst_metadata_demux, "parse-only", TRUE, NULL); - g_object_set (gst_video_sink, "force-aspect-ratio", TRUE, NULL); - - - /* adding and linking elements */ - gst_bin_add_many (GST_BIN (gst_pipeline), gst_source, gst_metadata_demux, - gst_image_dec, gst_video_scale, gst_video_convert, gst_video_sink, NULL); - - linked = gst_element_link_many (gst_source, gst_metadata_demux, gst_image_dec, - gst_video_scale, gst_video_convert, gst_video_sink, NULL); - - /* now element are owned by pipeline (for videosink we keep a extra ref) */ - gst_source = gst_metadata_demux = gst_image_dec = gst_video_scale = - gst_video_convert = NULL; - gst_object_ref (gst_video_sink); - - if (window) - gst_x_overlay_set_xwindow_id (GST_X_OVERLAY (gst_video_sink), - GDK_WINDOW_XWINDOW (window)); - - if (!linked) { - fprintf (stderr, "Elements couldn't be linked\n"); - ret = -410; - goto done; - } - - /* adding message bus */ - bus = gst_pipeline_get_bus (GST_PIPELINE (gst_pipeline)); - gst_bus_add_watch (bus, me_gst_bus_callback_view, NULL); - gst_object_unref (bus); - - -done: - - return ret; - -} - -int -main (int argc, char *argv[]) -{ - int ret = 0; - - if (argc != 2) { - fprintf (stderr, "Give the name of a jpeg file as argument\n"); - ret = -5; - goto done; - } - - gst_init (&argc, &argv); - gtk_init (&argc, &argv); - - /* filename for future usage (title and file name to be created) */ - if (filename) - g_string_free (filename, TRUE); - filename = g_string_new (argv[1]); - - /* create UI */ - if ((ret = ui_create ())) { - goto done; - } - - /* create pipeline */ - me_gst_setup_view_pipeline (argv[1], ui_drawing->window); - - gst_element_set_state (gst_pipeline, GST_STATE_PLAYING); - - gtk_main (); - -done: - - me_gst_cleanup_elements (); - - if (tag_list) { - gst_tag_list_free (tag_list); - tag_list = NULL; - } - - if (filename) { - g_string_free (filename, TRUE); - filename = NULL; - } - - return ret; -} |