author | Pat Downey <patd@symbian.org> |
Wed, 01 Sep 2010 12:16:41 +0100 | |
branch | RCL_3 |
changeset 30 | 7e817e7e631c |
parent 29 | 567bb019e3e3 |
permissions | -rw-r--r-- |
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/* GStreamer |
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* Copyright (C) 2003 Thomas Vander Stichele <thomas@apestaart.org> |
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* 2003 Benjamin Otte <in7y118@public.uni-hamburg.de> |
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* 2005 Andy Wingo <wingo@pobox.com> |
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* |
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* gst-typefind.c: Use GStreamer to find the type of a file |
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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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#ifdef HAVE_CONFIG_H |
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# include "config.h" |
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#endif |
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#include <string.h> |
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#include <locale.h> |
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#include "tools.h" |
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static void |
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have_type_handler (GstElement * typefind, guint probability, |
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const GstCaps * caps, GstCaps ** p_caps) |
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{ |
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if (p_caps) { |
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*p_caps = gst_caps_copy (caps); |
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} |
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} |
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static void |
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typefind_file (const gchar * filename) |
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{ |
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GstStateChangeReturn sret; |
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GstElement *pipeline; |
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GstElement *source; |
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GstElement *typefind; |
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GstElement *fakesink; |
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GstState state; |
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GstCaps *caps = NULL; |
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GDir *dir; |
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if ((dir = g_dir_open (filename, 0, NULL))) { |
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const gchar *entry; |
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while ((entry = g_dir_read_name (dir))) { |
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gchar *path; |
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path = g_strconcat (filename, G_DIR_SEPARATOR_S, entry, NULL); |
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typefind_file (path); |
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g_free (path); |
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} |
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g_dir_close (dir); |
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return; |
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} |
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pipeline = gst_pipeline_new ("pipeline"); |
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source = gst_element_factory_make ("filesrc", "source"); |
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g_assert (GST_IS_ELEMENT (source)); |
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typefind = gst_element_factory_make ("typefind", "typefind"); |
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g_assert (GST_IS_ELEMENT (typefind)); |
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fakesink = gst_element_factory_make ("fakesink", "fakesink"); |
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g_assert (GST_IS_ELEMENT (typefind)); |
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gst_bin_add_many (GST_BIN (pipeline), source, typefind, fakesink, NULL); |
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gst_element_link_many (source, typefind, fakesink, NULL); |
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g_signal_connect (G_OBJECT (typefind), "have-type", |
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G_CALLBACK (have_type_handler), &caps); |
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g_object_set (source, "location", filename, NULL); |
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GST_DEBUG ("Starting typefinding for %s", filename); |
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/* typefind will only commit to PAUSED if it actually finds a type; |
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* otherwise the state change fails */ |
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gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PAUSED); |
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/* wait until state change either completes or fails */ |
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sret = gst_element_get_state (GST_ELEMENT (pipeline), &state, NULL, -1); |
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switch (sret) { |
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case GST_STATE_CHANGE_FAILURE:{ |
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GstMessage *msg; |
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GstBus *bus; |
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GError *err = NULL; |
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|
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bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline)); |
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103 |
msg = gst_bus_poll (bus, GST_MESSAGE_ERROR, 0); |
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|
104 |
gst_object_unref (bus); |
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|
105 |
|
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|
106 |
if (msg) { |
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|
107 |
gst_message_parse_error (msg, &err, NULL); |
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|
108 |
g_printerr ("%s - FAILED: %s\n", filename, err->message); |
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|
109 |
g_error_free (err); |
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|
110 |
gst_message_unref (msg); |
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|
111 |
} else { |
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|
112 |
g_printerr ("%s - FAILED: unknown error\n", filename); |
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|
113 |
} |
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|
114 |
break; |
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|
115 |
} |
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|
116 |
case GST_STATE_CHANGE_SUCCESS:{ |
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|
117 |
if (caps) { |
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118 |
gchar *caps_str; |
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119 |
|
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120 |
caps_str = gst_caps_to_string (caps); |
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|
121 |
g_print ("%s - %s\n", filename, caps_str); |
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122 |
g_free (caps_str); |
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|
123 |
gst_caps_unref (caps); |
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|
124 |
} else { |
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125 |
g_print ("%s - %s\n", filename, "No type found"); |
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126 |
} |
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127 |
break; |
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|
128 |
} |
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129 |
default: |
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130 |
g_assert_not_reached (); |
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131 |
} |
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132 |
|
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133 |
gst_element_set_state (pipeline, GST_STATE_NULL); |
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|
134 |
gst_object_unref (pipeline); |
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|
135 |
} |
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|
136 |
|
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137 |
int |
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138 |
main (int argc, char *argv[]) |
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139 |
{ |
30 | 140 |
gchar **filenames = NULL; |
0
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|
141 |
guint num, i; |
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|
142 |
GError *err = NULL; |
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|
143 |
GOptionContext *ctx; |
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|
144 |
GOptionEntry options[] = { |
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|
145 |
GST_TOOLS_GOPTION_VERSION, |
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146 |
{G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &filenames, NULL}, |
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147 |
{NULL} |
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|
148 |
}; |
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|
149 |
|
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|
150 |
#ifdef ENABLE_NLS |
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|
151 |
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); |
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|
152 |
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8"); |
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|
153 |
textdomain (GETTEXT_PACKAGE); |
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|
154 |
#endif |
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|
155 |
|
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|
156 |
if (!g_thread_supported ()) |
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|
157 |
g_thread_init (NULL); |
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|
158 |
|
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|
159 |
ctx = g_option_context_new ("FILES"); |
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|
160 |
g_option_context_add_main_entries (ctx, options, GETTEXT_PACKAGE); |
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|
161 |
g_option_context_add_group (ctx, gst_init_get_option_group ()); |
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|
162 |
if (!g_option_context_parse (ctx, &argc, &argv, &err)) { |
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|
163 |
g_print ("Error initializing: %s\n", GST_STR_NULL (err->message)); |
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|
164 |
exit (1); |
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|
165 |
} |
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|
166 |
g_option_context_free (ctx); |
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|
167 |
|
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|
168 |
gst_tools_print_version ("gst-typefind"); |
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|
169 |
|
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|
170 |
if (filenames == NULL || *filenames == NULL) { |
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|
171 |
g_print ("Please give a filename to typefind\n\n"); |
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|
172 |
return 1; |
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|
173 |
} |
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|
174 |
|
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|
175 |
num = g_strv_length (filenames); |
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|
176 |
|
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|
177 |
for (i = 0; i < num; ++i) { |
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Revision: 200949
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|
178 |
typefind_file (filenames[i]); |
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|
179 |
} |
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|
180 |
|
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|
181 |
g_strfreev (filenames); |
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diff
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|
182 |
|
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|
183 |
return 0; |
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diff
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|
184 |
} |