mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2025-03-28 11:55:39 +00:00
Added Basic Tutorial 9
This commit is contained in:
Xavi Artigas
unknown
parent
6f313a55c6
commit
6575e17365
4 changed files with 329 additions and 0 deletions
216
gst-sdk/tutorials/basic-tutorial-9.c
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216
gst-sdk/tutorials/basic-tutorial-9.c
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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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if (argc != 2) {
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g_print ("No URI to discover given\n");
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return -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", argv[1]);
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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, argv[1])) {
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g_print ("Failed to start discovering URI '%s'\n", argv[1]);
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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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/* 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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97
vs/2010/tutorials/basic-tutorial-9/basic-tutorial-9.vcxproj
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97
vs/2010/tutorials/basic-tutorial-9/basic-tutorial-9.vcxproj
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@ -0,0 +1,97 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup Label="ProjectConfigurations">
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<ProjectConfiguration Include="Debug|Win32">
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<Configuration>Debug</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Debug|x64">
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<Configuration>Debug</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|Win32">
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<Configuration>Release</Configuration>
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<Platform>Win32</Platform>
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</ProjectConfiguration>
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<ProjectConfiguration Include="Release|x64">
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<Configuration>Release</Configuration>
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<Platform>x64</Platform>
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</ProjectConfiguration>
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</ItemGroup>
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<ItemGroup>
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<ClCompile Include="..\..\..\..\gst-sdk\tutorials\basic-tutorial-9.c" />
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</ItemGroup>
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<PropertyGroup Label="Globals">
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<Keyword>Win32Proj</Keyword>
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<ProjectGuid>{7B61F2C6-5202-48B7-8589-164F81BC636C}</ProjectGuid>
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<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>true</UseDebugLibraries>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
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<ConfigurationType>Application</ConfigurationType>
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<UseDebugLibraries>false</UseDebugLibraries>
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<WholeProgramOptimization>true</WholeProgramOptimization>
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<CharacterSet>Unicode</CharacterSet>
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</PropertyGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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<ImportGroup Label="ExtensionSettings">
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Platform)'=='Win32'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-0.10.props" Condition="exists('$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-0.10.props')" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-pbutils-0.10.props" Condition="exists('$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\libs\gstreamer-pbutils-0.10.props')" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\msvc\x86.props" Condition="exists('$(GSTREAMER_SDK_ROOT_X86)\share\vs\2010\msvc\x86.props')" />
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</ImportGroup>
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<ImportGroup Label="PropertySheets" Condition="'$(Platform)'=='x64'">
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<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86_64)\share\vs\2010\libs\gstreamer-0.10.props" Condition="exists('$(GSTREAMER_SDK_ROOT_X86_64)\share\vs\2010\libs\gstreamer-0.10.props')" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86_64)\share\vs\2010\libs\gstreamer-pbutils-0.10.props" Condition="exists('$(GSTREAMER_SDK_ROOT_X86_64)\share\vs\2010\libs\gstreamer-pbutils-0.10.props')" />
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<Import Project="$(GSTREAMER_SDK_ROOT_X86_64)\share\vs\2010\msvc\x86_64.props" Condition="exists('$(GSTREAMER_SDK_ROOT_X86_64)\share\vs\2010\msvc\x86_64.props')" />
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</ImportGroup>
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<PropertyGroup Label="UserMacros" />
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<PropertyGroup Condition="'$(Configuration)'=='Debug'">
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<LinkIncremental>true</LinkIncremental>
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</PropertyGroup>
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<PropertyGroup Condition="'$(Configuration)'=='Release'">
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<LinkIncremental>false</LinkIncremental>
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</PropertyGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)'=='Debug'">
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<ClCompile>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<WarningLevel>Level3</WarningLevel>
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<Optimization>Disabled</Optimization>
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<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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<AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
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<AdditionalLibraryDirectories>%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
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</Link>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="'$(Configuration)'=='Release'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<PrecompiledHeader>
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</PrecompiledHeader>
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<Optimization>MaxSpeed</Optimization>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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</ClCompile>
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<Link>
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<SubSystem>Console</SubSystem>
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<GenerateDebugInformation>false</GenerateDebugInformation>
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<EnableCOMDATFolding>true</EnableCOMDATFolding>
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</Link>
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</ItemDefinitionGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</ImportGroup>
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</Project>
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@ -0,0 +1,6 @@
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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<ItemGroup>
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<ClCompile Include="..\..\..\..\gst-sdk\tutorials\basic-tutorial-9.c" />
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</ItemGroup>
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</Project>
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@ -21,6 +21,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "playback-tutorial-1", "play
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "playback-tutorial-2", "playback-tutorial-2\playback-tutorial-2.vcxproj", "{9AC36197-6B43-49D2-B747-75AA06550637}"
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EndProject
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "basic-tutorial-9", "basic-tutorial-9\basic-tutorial-9.vcxproj", "{7B61F2C6-5202-48B7-8589-164F81BC636C}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Win32 = Debug|Win32
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@ -109,6 +111,14 @@ Global
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{9AC36197-6B43-49D2-B747-75AA06550637}.Release|Win32.Build.0 = Release|Win32
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{9AC36197-6B43-49D2-B747-75AA06550637}.Release|x64.ActiveCfg = Release|x64
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{9AC36197-6B43-49D2-B747-75AA06550637}.Release|x64.Build.0 = Release|x64
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{7B61F2C6-5202-48B7-8589-164F81BC636C}.Debug|Win32.ActiveCfg = Debug|Win32
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{7B61F2C6-5202-48B7-8589-164F81BC636C}.Debug|Win32.Build.0 = Debug|Win32
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{7B61F2C6-5202-48B7-8589-164F81BC636C}.Debug|x64.ActiveCfg = Debug|x64
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{7B61F2C6-5202-48B7-8589-164F81BC636C}.Debug|x64.Build.0 = Debug|x64
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{7B61F2C6-5202-48B7-8589-164F81BC636C}.Release|Win32.ActiveCfg = Release|Win32
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{7B61F2C6-5202-48B7-8589-164F81BC636C}.Release|Win32.Build.0 = Release|Win32
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{7B61F2C6-5202-48B7-8589-164F81BC636C}.Release|x64.ActiveCfg = Release|x64
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{7B61F2C6-5202-48B7-8589-164F81BC636C}.Release|x64.Build.0 = Release|x64
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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