mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-16 13:26:36 +00:00
b75efb7f59
Original commit message from CVS: Add G_DISABLE_DEPRECATED and fix deprecated code
463 lines
11 KiB
C
463 lines
11 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstutils.c: Utility functions: gtk_get_property stuff, etc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include "gst_private.h"
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#include "gstutils.h"
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#include "gsturitype.h"
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#include "gstinfo.h"
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/**
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* gst_util_dump_mem:
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* @mem: a pointer to the memory to dump
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* @size: the size of the memory block to dump
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*
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* Dumps the memory block into a hex representation. Useful for debugging.
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*/
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void
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gst_util_dump_mem (guchar *mem, guint size)
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{
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guint i, j;
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GString *string = g_string_sized_new (50);
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GString *chars = g_string_sized_new (18);
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i = j = 0;
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while (i < size) {
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if (g_ascii_isprint (mem[i]))
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g_string_append_printf (chars, "%c", mem[i]);
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else
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g_string_append_printf (chars, ".");
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g_string_append_printf (string, "%02x ", mem[i]);
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j++;
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i++;
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if (j == 16 || i == size) {
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g_print ("%08x (%p): %-48.48s %-16.16s\n", i-j, mem+i-j, string->str, chars->str);
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g_string_set_size (string, 0);
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g_string_set_size (chars, 0);
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j = 0;
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}
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}
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g_string_free (string, TRUE);
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g_string_free (chars, TRUE);
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}
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/**
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* gst_util_set_value_from_string:
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* @value: the value to set
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* @value_str: the string to get the value from
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*
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* Converts the string to the type of the value and
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* sets the value with it.
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*/
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void
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gst_util_set_value_from_string(GValue *value, const gchar *value_str)
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{
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g_return_if_fail(value != NULL);
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g_return_if_fail(value_str != NULL);
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GST_CAT_DEBUG (GST_CAT_PARAMS, "parsing '%s' to type %s", value_str, g_type_name(G_VALUE_TYPE(value)));
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switch (G_VALUE_TYPE(value)) {
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case G_TYPE_STRING:
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g_value_set_string(value, g_strdup(value_str));
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break;
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case G_TYPE_ENUM:
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case G_TYPE_INT: {
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gint i;
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sscanf (value_str, "%d", &i);
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g_value_set_int(value, i);
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break;
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}
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case G_TYPE_UINT: {
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guint i;
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sscanf (value_str, "%u", &i);
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g_value_set_uint(value, i);
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break;
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}
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case G_TYPE_LONG: {
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glong i;
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sscanf (value_str, "%ld", &i);
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g_value_set_long(value, i);
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break;
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}
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case G_TYPE_ULONG: {
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gulong i;
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sscanf (value_str, "%lu", &i);
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g_value_set_ulong(value, i);
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break;
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}
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case G_TYPE_BOOLEAN: {
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gboolean i = FALSE;
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if (!strncmp ("true", value_str, 4)) i = TRUE;
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g_value_set_boolean(value, i);
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break;
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}
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case G_TYPE_CHAR: {
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gchar i;
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sscanf (value_str, "%c", &i);
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g_value_set_char(value, i);
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break;
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}
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case G_TYPE_UCHAR: {
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guchar i;
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sscanf (value_str, "%c", &i);
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g_value_set_uchar(value, i);
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break;
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}
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case G_TYPE_FLOAT: {
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gfloat i;
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sscanf (value_str, "%f", &i);
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g_value_set_float(value, i);
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break;
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}
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case G_TYPE_DOUBLE: {
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gfloat i;
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sscanf (value_str, "%g", &i);
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g_value_set_double(value, (gdouble)i);
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break;
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}
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default:
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break;
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}
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}
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/**
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* gst_util_set_object_arg:
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* @object: the object to set the argument of
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* @name: the name of the argument to set
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* @value: the string value to set
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*
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* Convertes the string value to the type of the objects argument and
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* sets the argument with it.
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*/
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void
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gst_util_set_object_arg (GObject * object, const gchar * name, const gchar * value)
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{
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if (name && value) {
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GParamSpec *paramspec;
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paramspec = g_object_class_find_property (G_OBJECT_GET_CLASS (object), name);
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if (!paramspec) {
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return;
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}
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GST_DEBUG ( "paramspec->flags is %d, paramspec->value_type is %d",
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paramspec->flags, (gint) paramspec->value_type);
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if (paramspec->flags & G_PARAM_WRITABLE) {
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switch (paramspec->value_type) {
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case G_TYPE_STRING:
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g_object_set (G_OBJECT (object), name, value, NULL);
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break;
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case G_TYPE_ENUM:
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case G_TYPE_INT:{
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gint i;
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sscanf (value, "%d", &i);
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g_object_set (G_OBJECT (object), name, i, NULL);
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break;
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}
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case G_TYPE_UINT:{
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guint i;
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sscanf (value, "%u", &i);
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g_object_set (G_OBJECT (object), name, i, NULL);
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break;
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}
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case G_TYPE_LONG:{
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glong i;
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sscanf (value, "%ld", &i);
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g_object_set (G_OBJECT (object), name, i, NULL);
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break;
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}
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case G_TYPE_ULONG:{
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gulong i;
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sscanf (value, "%lu", &i);
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g_object_set (G_OBJECT (object), name, i, NULL);
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break;
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}
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case G_TYPE_BOOLEAN:{
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gboolean i = FALSE;
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if (!g_ascii_strncasecmp ("true", value, 4))
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i = TRUE;
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g_object_set (G_OBJECT (object), name, i, NULL);
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break;
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}
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case G_TYPE_CHAR:{
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gchar i;
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sscanf (value, "%c", &i);
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g_object_set (G_OBJECT (object), name, i, NULL);
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break;
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}
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case G_TYPE_UCHAR:{
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guchar i;
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sscanf (value, "%c", &i);
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g_object_set (G_OBJECT (object), name, i, NULL);
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break;
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}
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case G_TYPE_FLOAT:{
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gfloat i;
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sscanf (value, "%f", &i);
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g_object_set (G_OBJECT (object), name, i, NULL);
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break;
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}
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case G_TYPE_DOUBLE:{
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gfloat i;
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sscanf (value, "%g", &i);
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g_object_set (G_OBJECT (object), name, (gdouble) i, NULL);
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break;
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}
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default:
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if (G_IS_PARAM_SPEC_ENUM (paramspec)) {
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gint i;
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sscanf (value, "%d", &i);
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g_object_set (G_OBJECT (object), name, i, NULL);
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}
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else if (paramspec->value_type == GST_TYPE_URI) {
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g_object_set (G_OBJECT (object), name, value, NULL);
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}
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break;
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}
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}
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}
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}
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/* -----------------------------------------------------
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*
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* The following code will be moved out of the main
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* gstreamer library someday.
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*/
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#include "gstpad.h"
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#include "gstprops.h"
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static void
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string_append_indent (GString * str, gint count)
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{
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gint xx;
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for (xx = 0; xx < count; xx++)
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g_string_append_c (str, ' ');
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}
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static void
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gst_print_props (GString *buf, gint indent, GList *props, gboolean showname)
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{
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GList *elem;
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guint width = 0;
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GstPropsType type;
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if (showname)
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for (elem = props; elem; elem = g_list_next (elem)) {
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GstPropsEntry *prop = elem->data;
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const gchar *name = gst_props_entry_get_name (prop);
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if (width < strlen (name))
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width = strlen (name);
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}
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for (elem = props; elem; elem = g_list_next (elem)) {
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GstPropsEntry *prop = elem->data;
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string_append_indent (buf, indent);
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if (showname) {
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const gchar *name = gst_props_entry_get_name (prop);
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g_string_append (buf, name);
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string_append_indent (buf, 2 + width - strlen (name));
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}
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type = gst_props_entry_get_props_type (prop);
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switch (type) {
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case GST_PROPS_INT_TYPE:
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{
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gint val;
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gst_props_entry_get_int (prop, &val);
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g_string_append_printf (buf, "%d (int)\n", val);
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break;
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}
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case GST_PROPS_INT_RANGE_TYPE:
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{
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gint min, max;
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gst_props_entry_get_int_range (prop, &min, &max);
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g_string_append_printf (buf, "%d - %d (int)\n", min, max);
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break;
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}
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case GST_PROPS_FLOAT_TYPE:
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{
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gfloat val;
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gst_props_entry_get_float (prop, &val);
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g_string_append_printf (buf, "%f (float)\n", val);
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break;
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}
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case GST_PROPS_FLOAT_RANGE_TYPE:
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{
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gfloat min, max;
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gst_props_entry_get_float_range (prop, &min, &max);
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g_string_append_printf (buf, "%f - %f (float)\n", min, max);
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break;
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}
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case GST_PROPS_BOOLEAN_TYPE:
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{
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gboolean val;
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gst_props_entry_get_boolean (prop, &val);
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g_string_append_printf (buf, "%s\n", val ? "TRUE" : "FALSE");
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break;
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}
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case GST_PROPS_STRING_TYPE:
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{
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const gchar *val;
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gst_props_entry_get_string (prop, &val);
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g_string_append_printf (buf, "\"%s\"\n", val);
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break;
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}
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case GST_PROPS_FOURCC_TYPE:
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{
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guint32 val;
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gst_props_entry_get_fourcc_int (prop, &val);
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g_string_append_printf (buf, "'%c%c%c%c' (fourcc)\n",
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(gchar)( val & 0xff),
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(gchar)((val >> 8) & 0xff),
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(gchar)((val >> 16) & 0xff),
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(gchar)((val >> 24) & 0xff));
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break;
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}
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case GST_PROPS_LIST_TYPE:
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{
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const GList *list;
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gst_props_entry_get_list (prop, &list);
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gst_print_props (buf, indent + 2, (GList *)list, FALSE);
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break;
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}
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default:
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g_string_append_printf (buf, "unknown proptype %d\n", type);
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break;
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}
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}
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}
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/**
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* gst_print_pad_caps:
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* @buf: the buffer to print the caps in
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* @indent: initial indentation
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* @pad: the pad to print the caps from
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*
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* Write the pad capabilities in a human readable format into
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* the given GString.
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*/
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void
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gst_print_pad_caps (GString * buf, gint indent, GstPad * pad)
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{
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GstRealPad *realpad;
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GstCaps *caps;
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realpad = GST_PAD_REALIZE (pad);
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caps = realpad->caps;
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if (!caps) {
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string_append_indent (buf, indent);
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g_string_printf (buf, "%s:%s has no capabilities", GST_DEBUG_PAD_NAME (pad));
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}
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else {
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gint capx = 0;
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while (caps) {
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string_append_indent (buf, indent);
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g_string_append_printf (buf, "Cap[%d]: %s\n", capx++, caps->name);
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string_append_indent (buf, indent + 2);
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g_string_append_printf (buf, "MIME type: %s\n", gst_caps_get_mime (caps));
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if (caps->properties)
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gst_print_props (buf, indent + 4, caps->properties->properties, TRUE);
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caps = caps->next;
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}
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}
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}
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/**
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* gst_print_element_args:
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* @buf: the buffer to print the args in
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* @indent: initial indentation
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* @element: the element to print the args of
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*
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* Print the element argument in a human readable format in the given
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* GString.
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*/
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void
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gst_print_element_args (GString * buf, gint indent, GstElement * element)
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{
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guint width;
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GValue value = { 0, }; /* the important thing is that value.type = 0 */
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gchar *str = 0;
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GParamSpec *spec, **specs, **walk;
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specs = g_object_class_list_properties (G_OBJECT_GET_CLASS (element), NULL);
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width = 0;
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for (walk = specs; *walk; walk++) {
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spec = *walk;
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if (width < strlen (spec->name))
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width = strlen (spec->name);
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}
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for (walk = specs; *walk; walk++) {
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spec = *walk;
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if (spec->flags & G_PARAM_READABLE) {
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g_value_init(&value, G_PARAM_SPEC_VALUE_TYPE (spec));
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g_object_get_property (G_OBJECT (element), spec->name, &value);
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str = g_strdup_value_contents (&value);
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g_value_unset(&value);
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} else {
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str = g_strdup ("Parameter not readable.");
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}
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string_append_indent (buf, indent);
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g_string_append (buf, spec->name);
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string_append_indent (buf, 2 + width - strlen (spec->name));
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g_string_append (buf, str);
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g_string_append_c (buf, '\n');
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g_free (str);
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}
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g_free (specs);
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}
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