mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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CRLF and fix unreffing bug
This commit is contained in:
Xavi Artigas
unknown
parent
3bd4854409
commit
f90232dc3a
1 changed files with 210 additions and 211 deletions
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@ -1,217 +1,216 @@
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/pbutils/pbutils.h>
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/* Structure to contain all our information, so we can pass it around */
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typedef struct _CustomData {
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GstDiscoverer *discoverer;
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GMainLoop *loop;
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} CustomData;
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/* Print a tag in a human-readable format (name: value) */
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static void print_tag_foreach (const GstTagList *tags, const gchar *tag, gpointer user_data) {
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GValue val = { 0, };
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gchar *str;
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gint depth = GPOINTER_TO_INT (user_data);
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gst_tag_list_copy_value (&val, tags, tag);
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if (G_VALUE_HOLDS_STRING (&val))
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str = g_value_dup_string (&val);
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else
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str = gst_value_serialize (&val);
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g_print ("%*s%s: %s\n", 2 * depth, " ", gst_tag_get_nick (tag), str);
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g_free (str);
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g_value_unset (&val);
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}
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/* Print information regarding a stream */
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static void print_stream_info (GstDiscovererStreamInfo *info, gint depth) {
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gchar *desc = NULL;
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GstCaps *caps;
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const GstTagList *tags;
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caps = gst_discoverer_stream_info_get_caps (info);
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if (caps) {
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if (gst_caps_is_fixed (caps))
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desc = gst_pb_utils_get_codec_description (caps);
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else
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desc = gst_caps_to_string (caps);
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gst_caps_unref (caps);
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}
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g_print ("%*s%s: %s\n", 2 * depth, " ", gst_discoverer_stream_info_get_stream_type_nick (info), (desc ? desc : ""));
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if (desc) {
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g_free (desc);
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desc = NULL;
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}
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tags = gst_discoverer_stream_info_get_tags (info);
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if (tags) {
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g_print ("%*sTags:\n", 2 * (depth + 1), " ");
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gst_tag_list_foreach (tags, print_tag_foreach, GINT_TO_POINTER (depth + 2));
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}
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}
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/* Print information regarding a stream and its substreams, if any */
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static void print_topology (GstDiscovererStreamInfo *info, gint depth) {
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GstDiscovererStreamInfo *next;
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if (!info)
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return;
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print_stream_info (info, depth);
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next = gst_discoverer_stream_info_get_next (info);
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if (next) {
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print_topology (next, depth + 1);
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gst_discoverer_stream_info_unref (next);
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} else if (GST_IS_DISCOVERER_CONTAINER_INFO (info)) {
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GList *tmp, *streams;
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streams = gst_discoverer_container_info_get_streams (GST_DISCOVERER_CONTAINER_INFO (info));
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for (tmp = streams; tmp; tmp = tmp->next) {
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GstDiscovererStreamInfo *tmpinf = (GstDiscovererStreamInfo *) tmp->data;
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print_topology (tmpinf, depth + 1);
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}
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gst_discoverer_stream_info_list_free (streams);
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}
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}
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/* This function is called every time the discoverer has information regarding
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* one of the URIs we provided.*/
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static void on_discovered_cb (GstDiscoverer *discoverer, GstDiscovererInfo *info, GError *err, CustomData *data) {
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GstDiscovererResult result;
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const gchar *uri;
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const GstTagList *tags;
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GstDiscovererStreamInfo *sinfo;
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uri = gst_discoverer_info_get_uri (info);
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result = gst_discoverer_info_get_result (info);
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switch (result) {
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case GST_DISCOVERER_URI_INVALID:
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g_print ("Invalid URI '%s'\n", uri);
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break;
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case GST_DISCOVERER_ERROR:
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g_print ("Discoverer error: %s\n", err->message);
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break;
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case GST_DISCOVERER_TIMEOUT:
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g_print ("Timeout\n");
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break;
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case GST_DISCOVERER_BUSY:
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g_print ("Busy\n");
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break;
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case GST_DISCOVERER_MISSING_PLUGINS:{
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const GstStructure *s;
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gchar *str;
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s = gst_discoverer_info_get_misc (info);
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str = gst_structure_to_string (s);
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g_print ("Missing plugins: %s\n", str);
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g_free (str);
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break;
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}
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case GST_DISCOVERER_OK:
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g_print ("Discovered '%s'\n", uri);
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break;
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}
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if (result != GST_DISCOVERER_OK) {
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g_printerr ("This URI cannot be played\n");
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return;
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}
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/* If we got no error, show the retrieved information */
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g_print ("\nDuration: %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (gst_discoverer_info_get_duration (info)));
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tags = gst_discoverer_info_get_tags (info);
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if (tags) {
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g_print ("Tags:\n");
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gst_tag_list_foreach (tags, print_tag_foreach, GINT_TO_POINTER (1));
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}
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g_print ("Seekable: %s\n", (gst_discoverer_info_get_seekable (info) ? "yes" : "no"));
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g_print ("\n");
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sinfo = gst_discoverer_info_get_stream_info (info);
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if (!sinfo)
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return;
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g_print ("Stream information:\n");
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print_topology (sinfo, 1);
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gst_discoverer_stream_info_unref (sinfo);
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g_print ("\n");
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}
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/* This function is called when the discoverer has finished examining
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* all the URIs we provided.*/
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static void on_finished_cb (GstDiscoverer *discoverer, CustomData *data) {
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g_print ("Finished discovering\n");
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g_main_loop_quit (data->loop);
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}
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int main (int argc, char **argv) {
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CustomData data;
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GError *err = NULL;
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gchar *uri = "http://docs.gstreamer.com/media/sintel_trailer-480p.webm";
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/* if a URI was provided, use it instead of the default one */
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if (argc > 1) {
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uri = argv[1];
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}
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#include <string.h>
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#include <gst/gst.h>
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#include <gst/pbutils/pbutils.h>
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/* Initialize cumstom data structure */
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memset (&data, 0, sizeof (data));
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/* Structure to contain all our information, so we can pass it around */
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typedef struct _CustomData {
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GstDiscoverer *discoverer;
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GMainLoop *loop;
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} CustomData;
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/* Initialize GStreamer */
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gst_init (&argc, &argv);
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g_print ("Discovering '%s'\n", uri);
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/* Print a tag in a human-readable format (name: value) */
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static void print_tag_foreach (const GstTagList *tags, const gchar *tag, gpointer user_data) {
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GValue val = { 0, };
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gchar *str;
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gint depth = GPOINTER_TO_INT (user_data);
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/* Instantiate the Discoverer */
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data.discoverer = gst_discoverer_new (5 * GST_SECOND, &err);
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if (!data.discoverer) {
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g_print ("Error creating discoverer instance: %s\n", err->message);
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g_clear_error (&err);
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return -1;
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}
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/* Connect to the interesting signals */
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g_signal_connect (data.discoverer, "discovered", G_CALLBACK (on_discovered_cb), &data);
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g_signal_connect (data.discoverer, "finished", G_CALLBACK (on_finished_cb), &data);
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/* Start the discoverer process (nothing to do yet) */
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gst_discoverer_start (data.discoverer);
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/* Add a request to process asynchronously the URI passed through the command line */
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if (!gst_discoverer_discover_uri_async (data.discoverer, uri)) {
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g_print ("Failed to start discovering URI '%s'\n", uri);
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g_object_unref (data.discoverer);
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g_main_loop_unref (data.loop);
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return -1;
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}
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gst_tag_list_copy_value (&val, tags, tag);
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/* Create a GLib Main Loop and set it to run, so we can wait for the signals */
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data.loop = g_main_loop_new (NULL, FALSE);
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g_main_loop_run (data.loop);
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/* Stop the discoverer process */
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gst_discoverer_stop (data.discoverer);
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if (G_VALUE_HOLDS_STRING (&val))
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str = g_value_dup_string (&val);
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else
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str = gst_value_serialize (&val);
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/* Free resources */
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g_object_unref (data.discoverer);
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g_main_loop_unref (data.loop);
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return 0;
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g_print ("%*s%s: %s\n", 2 * depth, " ", gst_tag_get_nick (tag), str);
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g_free (str);
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g_value_unset (&val);
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}
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/* Print information regarding a stream */
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static void print_stream_info (GstDiscovererStreamInfo *info, gint depth) {
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gchar *desc = NULL;
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GstCaps *caps;
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const GstTagList *tags;
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caps = gst_discoverer_stream_info_get_caps (info);
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if (caps) {
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if (gst_caps_is_fixed (caps))
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desc = gst_pb_utils_get_codec_description (caps);
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else
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desc = gst_caps_to_string (caps);
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gst_caps_unref (caps);
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}
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g_print ("%*s%s: %s\n", 2 * depth, " ", gst_discoverer_stream_info_get_stream_type_nick (info), (desc ? desc : ""));
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if (desc) {
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g_free (desc);
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desc = NULL;
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}
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tags = gst_discoverer_stream_info_get_tags (info);
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if (tags) {
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g_print ("%*sTags:\n", 2 * (depth + 1), " ");
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gst_tag_list_foreach (tags, print_tag_foreach, GINT_TO_POINTER (depth + 2));
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}
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}
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/* Print information regarding a stream and its substreams, if any */
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static void print_topology (GstDiscovererStreamInfo *info, gint depth) {
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GstDiscovererStreamInfo *next;
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if (!info)
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return;
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print_stream_info (info, depth);
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next = gst_discoverer_stream_info_get_next (info);
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if (next) {
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print_topology (next, depth + 1);
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gst_discoverer_stream_info_unref (next);
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} else if (GST_IS_DISCOVERER_CONTAINER_INFO (info)) {
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GList *tmp, *streams;
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streams = gst_discoverer_container_info_get_streams (GST_DISCOVERER_CONTAINER_INFO (info));
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for (tmp = streams; tmp; tmp = tmp->next) {
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GstDiscovererStreamInfo *tmpinf = (GstDiscovererStreamInfo *) tmp->data;
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print_topology (tmpinf, depth + 1);
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}
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gst_discoverer_stream_info_list_free (streams);
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}
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}
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/* This function is called every time the discoverer has information regarding
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* one of the URIs we provided.*/
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static void on_discovered_cb (GstDiscoverer *discoverer, GstDiscovererInfo *info, GError *err, CustomData *data) {
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GstDiscovererResult result;
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const gchar *uri;
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const GstTagList *tags;
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GstDiscovererStreamInfo *sinfo;
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uri = gst_discoverer_info_get_uri (info);
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result = gst_discoverer_info_get_result (info);
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switch (result) {
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case GST_DISCOVERER_URI_INVALID:
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g_print ("Invalid URI '%s'\n", uri);
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break;
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case GST_DISCOVERER_ERROR:
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g_print ("Discoverer error: %s\n", err->message);
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break;
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case GST_DISCOVERER_TIMEOUT:
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g_print ("Timeout\n");
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break;
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case GST_DISCOVERER_BUSY:
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g_print ("Busy\n");
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break;
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case GST_DISCOVERER_MISSING_PLUGINS:{
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const GstStructure *s;
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gchar *str;
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s = gst_discoverer_info_get_misc (info);
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str = gst_structure_to_string (s);
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g_print ("Missing plugins: %s\n", str);
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g_free (str);
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break;
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}
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case GST_DISCOVERER_OK:
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g_print ("Discovered '%s'\n", uri);
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break;
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}
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if (result != GST_DISCOVERER_OK) {
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g_printerr ("This URI cannot be played\n");
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return;
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}
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/* If we got no error, show the retrieved information */
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g_print ("\nDuration: %" GST_TIME_FORMAT "\n", GST_TIME_ARGS (gst_discoverer_info_get_duration (info)));
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tags = gst_discoverer_info_get_tags (info);
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if (tags) {
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g_print ("Tags:\n");
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gst_tag_list_foreach (tags, print_tag_foreach, GINT_TO_POINTER (1));
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}
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g_print ("Seekable: %s\n", (gst_discoverer_info_get_seekable (info) ? "yes" : "no"));
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g_print ("\n");
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sinfo = gst_discoverer_info_get_stream_info (info);
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if (!sinfo)
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return;
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g_print ("Stream information:\n");
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print_topology (sinfo, 1);
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gst_discoverer_stream_info_unref (sinfo);
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g_print ("\n");
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}
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/* This function is called when the discoverer has finished examining
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* all the URIs we provided.*/
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static void on_finished_cb (GstDiscoverer *discoverer, CustomData *data) {
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g_print ("Finished discovering\n");
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g_main_loop_quit (data->loop);
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}
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int main (int argc, char **argv) {
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CustomData data;
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GError *err = NULL;
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gchar *uri = "http://docs.gstreamer.com/media/sintel_trailer-480p.webm";
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/* if a URI was provided, use it instead of the default one */
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if (argc > 1) {
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uri = argv[1];
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}
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/* Initialize cumstom data structure */
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memset (&data, 0, sizeof (data));
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/* Initialize GStreamer */
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gst_init (&argc, &argv);
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g_print ("Discovering '%s'\n", uri);
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/* Instantiate the Discoverer */
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data.discoverer = gst_discoverer_new (5 * GST_SECOND, &err);
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if (!data.discoverer) {
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g_print ("Error creating discoverer instance: %s\n", err->message);
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g_clear_error (&err);
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return -1;
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}
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/* Connect to the interesting signals */
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g_signal_connect (data.discoverer, "discovered", G_CALLBACK (on_discovered_cb), &data);
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g_signal_connect (data.discoverer, "finished", G_CALLBACK (on_finished_cb), &data);
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/* Start the discoverer process (nothing to do yet) */
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gst_discoverer_start (data.discoverer);
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/* Add a request to process asynchronously the URI passed through the command line */
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if (!gst_discoverer_discover_uri_async (data.discoverer, uri)) {
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g_print ("Failed to start discovering URI '%s'\n", uri);
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g_object_unref (data.discoverer);
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return -1;
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}
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/* Create a GLib Main Loop and set it to run, so we can wait for the signals */
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data.loop = g_main_loop_new (NULL, FALSE);
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g_main_loop_run (data.loop);
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/* Stop the discoverer process */
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gst_discoverer_stop (data.discoverer);
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/* Free resources */
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g_object_unref (data.discoverer);
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g_main_loop_unref (data.loop);
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return 0;
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}
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