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gst/debug/: add new extensible and configurable testing element. Current tests include buffer count, stream length, t...
Original commit message from CVS: * gst/debug/testplugin.c: * gst/debug/tests.c: * gst/debug/tests.h: add new extensible and configurable testing element. Current tests include buffer count, stream length, timestamp/duration matching and md5. * gst/debug/Makefile.am: * gst/debug/gstdebug.c: (plugin_init): add infrastructure for new element
This commit is contained in:
parent
92be8f9837
commit
c7a62ce9dc
6 changed files with 894 additions and 6 deletions
12
ChangeLog
12
ChangeLog
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@ -1,3 +1,15 @@
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2004-05-19 Benjamin Otte <in7y118@public.uni-hamburg.de>
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* gst/debug/testplugin.c:
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* gst/debug/tests.c:
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* gst/debug/tests.h:
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add new extensible and configurable testing element. Current tests
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include buffer count, stream length, timestamp/duration matching and
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md5.
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* gst/debug/Makefile.am:
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* gst/debug/gstdebug.c: (plugin_init):
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add infrastructure for new element
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2004-05-19 Johan Dahlin <johan@gnome.org>
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* ext/dv/gstdvdec.c (gst_dvdec_quality_get_type): Add proper
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@ -1,7 +1,7 @@
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plugin_LTLIBRARIES = libgstefence.la libgstnavigationtest.la libgstdebug.la
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noinst_HEADERS = efence.h gstnavigationtest.h gstnavseek.h
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noinst_HEADERS = efence.h gstnavigationtest.h gstnavseek.h tests.h
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libgstefence_la_SOURCES = efence.c
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libgstefence_la_CFLAGS = $(GST_CFLAGS)
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@ -16,7 +16,9 @@ libgstdebug_la_SOURCES = \
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breakmydata.c \
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negotiation.c \
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gstnavseek.c \
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progressreport.c
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progressreport.c \
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tests.c \
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testplugin.c
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libgstdebug_la_CFLAGS = $(GST_CFLAGS)
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libgstdebug_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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@ -28,14 +28,17 @@ gboolean gst_break_my_data_plugin_init (GstPlugin * plugin);
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gboolean gst_negotiation_plugin_init (GstPlugin * plugin);
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gboolean gst_navseek_plugin_init (GstPlugin * plugin);
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gboolean gst_progressreport_plugin_init (GstPlugin * plugin);
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gboolean gst_test_plugin_init (GstPlugin * plugin);
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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gst_break_my_data_plugin_init (plugin);
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gst_negotiation_plugin_init (plugin);
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gst_navseek_plugin_init (plugin);
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gst_progressreport_plugin_init (plugin);
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if (!gst_break_my_data_plugin_init (plugin) ||
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!gst_negotiation_plugin_init (plugin) ||
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!gst_navseek_plugin_init (plugin) ||
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!gst_progressreport_plugin_init (plugin) ||
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!gst_test_plugin_init (plugin))
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return FALSE;
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return TRUE;
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}
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261
gst/debug/testplugin.c
Normal file
261
gst/debug/testplugin.c
Normal file
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@ -0,0 +1,261 @@
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/* GStreamer
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* Copyright (C) 2004 Benjamin Otte <otte@gnome.org>
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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 <gst/gst.h>
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#include "tests.h"
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GST_DEBUG_CATEGORY_STATIC (gst_test_debug);
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#define GST_CAT_DEFAULT gst_test_debug
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/* This plugin does all the tests registered in the tests.h file
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*/
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#define GST_TYPE_TEST \
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(gst_test_get_type())
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#define GST_TEST(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TEST,GstTest))
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#define GST_TEST_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TEST,GstTestClass))
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#define GST_TEST_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_TEST,GstTestClass))
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#define GST_IS_TEST(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TEST))
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#define GST_IS_TEST_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TEST))
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typedef struct _GstTest GstTest;
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typedef struct _GstTestClass GstTestClass;
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struct _GstTest
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{
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GstElement element;
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GstPad *sinkpad;
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gpointer tests[TESTS_COUNT];
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GValue values[TESTS_COUNT];
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};
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struct _GstTestClass
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{
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GstElementClass parent_class;
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gchar *param_names[2 * TESTS_COUNT];
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};
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GST_BOILERPLATE (GstTest, gst_test, GstElement, GST_TYPE_ELEMENT)
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static void gst_test_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec);
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static void gst_test_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static void gst_test_chain (GstPad * pad, GstData * _data);
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static void gst_test_base_init (gpointer g_class)
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{
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static GstElementDetails details = GST_ELEMENT_DETAILS ("gsttestsink",
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"Testing",
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"perform a number of tests",
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"Benjamin Otte <otte@gnome>");
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GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_set_details (gstelement_class, &details);
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}
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static void
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gst_test_class_init (GstTestClass * klass)
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{
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GObjectClass *object = G_OBJECT_CLASS (klass);
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guint i;
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object->set_property = GST_DEBUG_FUNCPTR (gst_test_set_property);
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object->get_property = GST_DEBUG_FUNCPTR (gst_test_get_property);
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for (i = 0; i < TESTS_COUNT; i++) {
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GParamSpec *spec;
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spec = tests[i].get_spec (&tests[i], FALSE);
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klass->param_names[2 * i] = g_strdup (g_param_spec_get_name (spec));
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g_object_class_install_property (object, 2 * i + 1, spec);
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spec = tests[i].get_spec (&tests[i], TRUE);
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klass->param_names[2 * i + 1] = g_strdup (g_param_spec_get_name (spec));
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g_object_class_install_property (object, 2 * i + 2, spec);
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}
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}
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static void
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gst_test_init (GstTest * test)
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{
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GstTestClass *klass;
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guint i;
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GST_FLAG_SET (test, GST_ELEMENT_EVENT_AWARE);
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test->sinkpad = gst_pad_new ("sink", GST_PAD_SINK);
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gst_element_add_pad (GST_ELEMENT (test), test->sinkpad);
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gst_pad_set_chain_function (test->sinkpad,
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GST_DEBUG_FUNCPTR (gst_test_chain));
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klass = GST_TEST_GET_CLASS (test);
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for (i = 0; i < TESTS_COUNT; i++) {
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GParamSpec *spec = g_object_class_find_property (G_OBJECT_CLASS (klass),
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klass->param_names[2 * i + 1]);
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g_value_init (&test->values[i], G_PARAM_SPEC_VALUE_TYPE (spec));
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}
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}
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static void
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tests_unset (GstTest * test)
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{
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guint i;
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for (i = 0; i < TESTS_COUNT; i++) {
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if (test->tests[i]) {
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tests[i].free (test->tests[i]);
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test->tests[i] = NULL;
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}
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}
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}
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static void
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tests_set (GstTest * test)
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{
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guint i;
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for (i = 0; i < TESTS_COUNT; i++) {
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g_assert (test->tests[i] == NULL);
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test->tests[i] = tests[i].new (&tests[i]);
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}
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}
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static void
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gst_test_chain (GstPad * pad, GstData * data)
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{
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guint i;
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GstTest *test = GST_TEST (gst_pad_get_parent (pad));
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GstTestClass *klass = GST_TEST_GET_CLASS (test);
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if (GST_IS_EVENT (data)) {
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GstEvent *event = GST_EVENT (data);
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_DISCONTINUOUS:
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if (GST_EVENT_DISCONT_NEW_MEDIA (event)) {
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tests_unset (test);
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tests_set (test);
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}
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break;
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case GST_EVENT_EOS:
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g_object_freeze_notify (G_OBJECT (test));
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for (i = 0; i < TESTS_COUNT; i++) {
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if (test->tests[i]) {
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if (!tests[i].finish (test->tests[i], &test->values[i])) {
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GValue v = { 0, };
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gchar *real, *expected;
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expected = gst_value_serialize (&test->values[i]);
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g_value_init (&v, G_VALUE_TYPE (&test->values[i]));
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g_object_get_property (G_OBJECT (test), klass->param_names[2 * i],
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&v);
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real = gst_value_serialize (&v);
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g_value_unset (&v);
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GST_ELEMENT_ERROR (test, STREAM, FORMAT, (NULL),
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("test %s returned value \"%s\" and not expected value \"%s\"",
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klass->param_names[2 * i], real, expected));
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g_free (real);
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g_free (expected);
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}
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g_object_notify (G_OBJECT (test), klass->param_names[2 * i]);
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}
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}
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g_object_thaw_notify (G_OBJECT (test));
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break;
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default:
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break;
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}
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gst_pad_event_default (pad, event);
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return;
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}
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for (i = 0; i < TESTS_COUNT; i++) {
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if (test->tests[i]) {
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tests[i].add (test->tests[i], GST_BUFFER (data));
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}
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}
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gst_data_unref (data);
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}
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static void
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gst_test_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstTest *test = GST_TEST (object);
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if (prop_id == 0 || prop_id > 2 * TESTS_COUNT) {
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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return;
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}
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if (prop_id % 2) {
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/* real values can't be set */
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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} else {
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/* expected values */
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g_value_copy (value, &test->values[prop_id / 2 - 1]);
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}
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}
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static void
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gst_test_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstTest *test = GST_TEST (object);
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guint id = (prop_id - 1) / 2;
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if (prop_id == 0 || prop_id > 2 * TESTS_COUNT) {
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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return;
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}
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if (prop_id % 2) {
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/* real values */
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tests[id].get_value (test->tests[id], value);
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} else {
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/* expected values */
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g_value_copy (&test->values[id], value);
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}
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}
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gboolean
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gst_test_plugin_init (GstPlugin * plugin)
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{
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if (!gst_element_register (plugin, "testsink", GST_RANK_NONE, GST_TYPE_TEST))
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return FALSE;
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GST_DEBUG_CATEGORY_INIT (gst_test_debug, "testsink", 0,
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"debugging category for testsink element");
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return TRUE;
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}
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566
gst/debug/tests.c
Normal file
566
gst/debug/tests.c
Normal file
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/* GStreamer
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* Copyright (C) 2004 Benjamin Otte <otte@gnome.org>
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*
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* includes code based on glibc 2.2.3's crypt/md5.c,
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* Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
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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.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
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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 "tests.h"
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#include <stdlib.h>
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#include <string.h>
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/*
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*** LENGTH ***
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*/
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typedef struct
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{
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gint64 value;
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}
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LengthTest;
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static GParamSpec *
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length_get_spec (const GstTestInfo * info, gboolean compare_value)
|
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{
|
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if (compare_value) {
|
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return g_param_spec_int64 ("expected-length", "expected length",
|
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"expected length of stream", -1, G_MAXINT64, -1,
|
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G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
|
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} else {
|
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return g_param_spec_int64 ("length", "length", "length of stream",
|
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-1, G_MAXINT64, -1, G_PARAM_READABLE);
|
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}
|
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}
|
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|
||||
static gpointer
|
||||
length_new (const GstTestInfo * info)
|
||||
{
|
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return g_new0 (LengthTest, 1);
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}
|
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|
||||
static void
|
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length_add (gpointer test, GstBuffer * buffer)
|
||||
{
|
||||
LengthTest *t = test;
|
||||
|
||||
t->value += GST_BUFFER_SIZE (buffer);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
length_finish (gpointer test, GValue * value)
|
||||
{
|
||||
LengthTest *t = test;
|
||||
|
||||
if (g_value_get_int64 (value) == -1)
|
||||
return TRUE;
|
||||
|
||||
return t->value == g_value_get_int64 (value);
|
||||
}
|
||||
|
||||
static void
|
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length_get_value (gpointer test, GValue * value)
|
||||
{
|
||||
LengthTest *t = test;
|
||||
|
||||
g_value_set_int64 (value, t ? t->value : -1);
|
||||
}
|
||||
|
||||
/*
|
||||
*** BUFFER COUNT ***
|
||||
*/
|
||||
|
||||
static GParamSpec *
|
||||
buffer_count_get_spec (const GstTestInfo * info, gboolean compare_value)
|
||||
{
|
||||
if (compare_value) {
|
||||
return g_param_spec_int64 ("expected-buffer-count", "expected buffer count",
|
||||
"expected number of buffers in stream",
|
||||
-1, G_MAXINT64, -1, G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
|
||||
} else {
|
||||
return g_param_spec_int64 ("buffer-count", "buffer count",
|
||||
"number of buffers in stream", -1, G_MAXINT64, -1, G_PARAM_READABLE);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
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buffer_count_add (gpointer test, GstBuffer * buffer)
|
||||
{
|
||||
LengthTest *t = test;
|
||||
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||||
t->value++;
|
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}
|
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||||
/*
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*** TIMESTAMP / DURATION MATCHING ***
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||||
*/
|
||||
|
||||
typedef struct
|
||||
{
|
||||
guint64 diff;
|
||||
guint count;
|
||||
GstClockTime expected;
|
||||
}
|
||||
TimeDurTest;
|
||||
|
||||
static GParamSpec *
|
||||
timedur_get_spec (const GstTestInfo * info, gboolean compare_value)
|
||||
{
|
||||
if (compare_value) {
|
||||
return g_param_spec_int64 ("allowed-timestamp-deviation",
|
||||
"allowed timestamp deviation",
|
||||
"allowed average difference in usec between timestamp of next buffer "
|
||||
"and expected timestamp from analyzing last buffer",
|
||||
-1, G_MAXINT64, -1, G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
|
||||
} else {
|
||||
return g_param_spec_int64 ("timestamp-deviation",
|
||||
"timestamp deviation",
|
||||
"average difference in usec between timestamp of next buffer "
|
||||
"and expected timestamp from analyzing last buffer",
|
||||
-1, G_MAXINT64, -1, G_PARAM_READABLE);
|
||||
}
|
||||
}
|
||||
|
||||
static gpointer
|
||||
timedur_new (const GstTestInfo * info)
|
||||
{
|
||||
TimeDurTest *ret = g_new0 (TimeDurTest, 1);
|
||||
|
||||
ret->expected = GST_CLOCK_TIME_NONE;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
timedur_add (gpointer test, GstBuffer * buffer)
|
||||
{
|
||||
TimeDurTest *t = test;
|
||||
|
||||
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer) &&
|
||||
GST_CLOCK_TIME_IS_VALID (t->expected)) {
|
||||
t->diff += labs (GST_BUFFER_TIMESTAMP (buffer) - t->expected);
|
||||
t->count++;
|
||||
}
|
||||
if (GST_BUFFER_TIMESTAMP_IS_VALID (buffer) &&
|
||||
GST_BUFFER_DURATION_IS_VALID (buffer)) {
|
||||
t->expected = GST_BUFFER_TIMESTAMP (buffer) + GST_BUFFER_DURATION (buffer);
|
||||
} else {
|
||||
t->expected = GST_CLOCK_TIME_NONE;
|
||||
}
|
||||
}
|
||||
|
||||
static gboolean
|
||||
timedur_finish (gpointer test, GValue * value)
|
||||
{
|
||||
TimeDurTest *t = test;
|
||||
|
||||
if (g_value_get_int64 (value) == -1)
|
||||
return TRUE;
|
||||
|
||||
return (t->diff / MAX (1, t->count)) <= g_value_get_int64 (value);
|
||||
}
|
||||
|
||||
static void
|
||||
timedur_get_value (gpointer test, GValue * value)
|
||||
{
|
||||
TimeDurTest *t = test;
|
||||
|
||||
g_value_set_int64 (value, t ? (t->diff / MAX (1, t->count)) : -1);
|
||||
}
|
||||
|
||||
/*
|
||||
*** MD5 ***
|
||||
*/
|
||||
|
||||
typedef struct
|
||||
{
|
||||
/* md5 information */
|
||||
guint32 A;
|
||||
guint32 B;
|
||||
guint32 C;
|
||||
guint32 D;
|
||||
|
||||
guint32 total[2];
|
||||
guint32 buflen;
|
||||
gchar buffer[128];
|
||||
|
||||
gchar result[33];
|
||||
}
|
||||
MD5Test;
|
||||
|
||||
static void md5_process_block (const void *buffer, size_t len, MD5Test * ctx);
|
||||
static void md5_read_ctx (MD5Test * ctx, gchar * result);
|
||||
|
||||
static GParamSpec *
|
||||
md5_get_spec (const GstTestInfo * info, gboolean compare_value)
|
||||
{
|
||||
if (compare_value) {
|
||||
return g_param_spec_string ("expected-md5", "expected md5",
|
||||
"expected md5 of processing the whole data",
|
||||
"---", G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
|
||||
} else {
|
||||
return g_param_spec_string ("md5", "md5",
|
||||
"md5 of processing the whole data", "---", G_PARAM_READABLE);
|
||||
}
|
||||
}
|
||||
|
||||
/* This array contains the bytes used to pad the buffer to the next
|
||||
64-byte boundary. (RFC 1321, 3.1: Step 1) */
|
||||
static const guchar fillbuf[64] = { 0x80, 0 /* , 0, 0, ... */ };
|
||||
|
||||
/* MD5 functions */
|
||||
/* Initialize structure containing state of computation.
|
||||
(RFC 1321, 3.3: Step 3) */
|
||||
static gpointer
|
||||
md5_new (const GstTestInfo * info)
|
||||
{
|
||||
MD5Test *ctx = g_new (MD5Test, 1);
|
||||
|
||||
ctx->A = 0x67452301;
|
||||
ctx->B = 0xefcdab89;
|
||||
ctx->C = 0x98badcfe;
|
||||
ctx->D = 0x10325476;
|
||||
|
||||
ctx->total[0] = ctx->total[1] = 0;
|
||||
ctx->buflen = 0;
|
||||
|
||||
memset (ctx->result, 0, 33);
|
||||
|
||||
return ctx;
|
||||
}
|
||||
|
||||
/* Process the remaining bytes in the internal buffer and the usual
|
||||
prolog according to the standard and write the result to RESBUF.
|
||||
|
||||
IMPORTANT: On some systems it is required that RESBUF is correctly
|
||||
aligned for a 32 bits value. */
|
||||
static gboolean
|
||||
md5_finish (gpointer test, GValue * value)
|
||||
{
|
||||
MD5Test *ctx = test;
|
||||
const gchar *str_val = g_value_get_string (value);
|
||||
|
||||
/* Take yet unprocessed bytes into account. */
|
||||
guint32 bytes = ctx->buflen;
|
||||
size_t pad;
|
||||
|
||||
/* Now count remaining bytes. */
|
||||
ctx->total[0] += bytes;
|
||||
if (ctx->total[0] < bytes)
|
||||
++ctx->total[1];
|
||||
|
||||
pad = bytes >= 56 ? 64 + 56 - bytes : 56 - bytes;
|
||||
memcpy (&ctx->buffer[bytes], fillbuf, pad);
|
||||
|
||||
/* Put the 64-bit file length in *bits* at the end of the buffer. */
|
||||
*(guint32 *) & ctx->buffer[bytes + pad] = GUINT32_TO_LE (ctx->total[0] << 3);
|
||||
*(guint32 *) & ctx->buffer[bytes + pad + 4] =
|
||||
GUINT32_TO_LE ((ctx->total[1] << 3) | (ctx->total[0] >> 29));
|
||||
|
||||
/* Process last bytes. */
|
||||
md5_process_block (ctx->buffer, bytes + pad + 8, ctx);
|
||||
|
||||
md5_read_ctx (ctx, ctx->result);
|
||||
if (g_str_equal (str_val, "---"))
|
||||
return TRUE;
|
||||
if (g_str_equal (str_val, ctx->result))
|
||||
return TRUE;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* Put result from CTX in first 16 bytes following RESBUF. The result
|
||||
must be in little endian byte order.
|
||||
|
||||
IMPORTANT: On some systems it is required that RESBUF is correctly
|
||||
aligned for a 32 bits value. */
|
||||
static void
|
||||
md5_read_ctx (MD5Test * ctx, gchar * result)
|
||||
{
|
||||
guint32 resbuf[4];
|
||||
guint i;
|
||||
|
||||
resbuf[0] = GUINT32_TO_LE (ctx->A);
|
||||
resbuf[1] = GUINT32_TO_LE (ctx->B);
|
||||
resbuf[2] = GUINT32_TO_LE (ctx->C);
|
||||
resbuf[3] = GUINT32_TO_LE (ctx->D);
|
||||
|
||||
for (i = 0; i < 16; i++)
|
||||
sprintf (result + i * 2, "%02x", ((guchar *) resbuf)[i]);
|
||||
}
|
||||
|
||||
static void
|
||||
md5_add (gpointer test, GstBuffer * gstbuffer)
|
||||
{
|
||||
const void *buffer = GST_BUFFER_DATA (gstbuffer);
|
||||
gsize len = GST_BUFFER_SIZE (gstbuffer);
|
||||
MD5Test *ctx = test;
|
||||
|
||||
/*const void aligned_buffer = buffer; */
|
||||
|
||||
/* When we already have some bits in our internal buffer concatenate
|
||||
both inputs first. */
|
||||
if (ctx->buflen != 0) {
|
||||
gsize left_over = ctx->buflen;
|
||||
gsize add = 128 - left_over > len ? len : 128 - left_over;
|
||||
|
||||
/* Only put full words in the buffer. */
|
||||
/* Forcing alignment here appears to be only an optimization.
|
||||
* The glibc source uses __alignof__, which seems to be a
|
||||
* gratuitous usage of a GCC extension, when sizeof() will
|
||||
* work fine. (And don't question the sanity of using
|
||||
* sizeof(guint32) instead of 4. */
|
||||
/* add -= add % __alignof__ (guint32); */
|
||||
add -= add % sizeof (guint32);
|
||||
|
||||
memcpy (&ctx->buffer[left_over], buffer, add);
|
||||
ctx->buflen += add;
|
||||
|
||||
if (ctx->buflen > 64) {
|
||||
md5_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
|
||||
|
||||
ctx->buflen &= 63;
|
||||
/* The regions in the following copy operation cannot overlap. */
|
||||
memcpy (ctx->buffer, &ctx->buffer[(left_over + add) & ~63], ctx->buflen);
|
||||
}
|
||||
|
||||
buffer = (const char *) buffer + add;
|
||||
len -= add;
|
||||
}
|
||||
|
||||
/* Process available complete blocks. */
|
||||
if (len > 64) {
|
||||
md5_process_block (buffer, len & ~63, ctx);
|
||||
buffer = (const char *) buffer + (len & ~63);
|
||||
len &= 63;
|
||||
}
|
||||
|
||||
/* Move remaining bytes in internal buffer. */
|
||||
if (len > 0) {
|
||||
size_t left_over = ctx->buflen;
|
||||
|
||||
memcpy (&ctx->buffer[left_over], buffer, len);
|
||||
left_over += len;
|
||||
if (left_over >= 64) {
|
||||
md5_process_block (ctx->buffer, 64, ctx);
|
||||
left_over -= 64;
|
||||
memcpy (ctx->buffer, &ctx->buffer[64], left_over);
|
||||
}
|
||||
ctx->buflen = left_over;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* These are the four functions used in the four steps of the MD5 algorithm
|
||||
and defined in the RFC 1321. The first function is a little bit optimized
|
||||
(as found in Colin Plumbs public domain implementation). */
|
||||
/* #define FF(b, c, d) ((b & c) | (~b & d)) */
|
||||
#define FF(b, c, d) (d ^ (b & (c ^ d)))
|
||||
#define FG(b, c, d) FF (d, b, c)
|
||||
#define FH(b, c, d) (b ^ c ^ d)
|
||||
#define FI(b, c, d) (c ^ (b | ~d))
|
||||
|
||||
static void
|
||||
md5_process_block (const void *buffer, size_t len, MD5Test * ctx)
|
||||
{
|
||||
/* Process LEN bytes of BUFFER, accumulating context into CTX.
|
||||
It is assumed that LEN % 64 == 0. */
|
||||
guint32 correct_words[16];
|
||||
const guint32 *words = buffer;
|
||||
size_t nwords = len / sizeof (guint32);
|
||||
const guint32 *endp = words + nwords;
|
||||
guint32 A = ctx->A;
|
||||
guint32 B = ctx->B;
|
||||
guint32 C = ctx->C;
|
||||
guint32 D = ctx->D;
|
||||
|
||||
/* First increment the byte count. RFC 1321 specifies the possible
|
||||
length of the file up to 2^64 bits. Here we only compute the
|
||||
number of bytes. Do a double word increment. */
|
||||
ctx->total[0] += len;
|
||||
if (ctx->total[0] < len)
|
||||
++ctx->total[1];
|
||||
|
||||
/* Process all bytes in the buffer with 64 bytes in each round of
|
||||
the loop. */
|
||||
while (words < endp) {
|
||||
guint32 *cwp = correct_words;
|
||||
guint32 A_save = A;
|
||||
guint32 B_save = B;
|
||||
guint32 C_save = C;
|
||||
guint32 D_save = D;
|
||||
|
||||
/* First round: using the given function, the context and a constant
|
||||
the next context is computed. Because the algorithms processing
|
||||
unit is a 32-bit word and it is determined to work on words in
|
||||
little endian byte order we perhaps have to change the byte order
|
||||
before the computation. To reduce the work for the next steps
|
||||
we store the swapped words in the array CORRECT_WORDS. */
|
||||
|
||||
#define OP(a, b, c, d, s, T) \
|
||||
do \
|
||||
{ \
|
||||
a += FF (b, c, d) + (*cwp++ = GUINT32_TO_LE (*words)) + T; \
|
||||
++words; \
|
||||
CYCLIC (a, s); \
|
||||
a += b; \
|
||||
} \
|
||||
while (0)
|
||||
|
||||
/* It is unfortunate that C does not provide an operator for
|
||||
cyclic rotation. Hope the C compiler is smart enough. */
|
||||
#define CYCLIC(w, s) (w = (w << s) | (w >> (32 - s)))
|
||||
|
||||
/* Before we start, one word to the strange constants.
|
||||
They are defined in RFC 1321 as
|
||||
|
||||
T[i] = (int) (4294967296.0 * fabs (sin (i))), i=1..64
|
||||
*/
|
||||
|
||||
/* Round 1. */
|
||||
OP (A, B, C, D, 7, 0xd76aa478);
|
||||
OP (D, A, B, C, 12, 0xe8c7b756);
|
||||
OP (C, D, A, B, 17, 0x242070db);
|
||||
OP (B, C, D, A, 22, 0xc1bdceee);
|
||||
OP (A, B, C, D, 7, 0xf57c0faf);
|
||||
OP (D, A, B, C, 12, 0x4787c62a);
|
||||
OP (C, D, A, B, 17, 0xa8304613);
|
||||
OP (B, C, D, A, 22, 0xfd469501);
|
||||
OP (A, B, C, D, 7, 0x698098d8);
|
||||
OP (D, A, B, C, 12, 0x8b44f7af);
|
||||
OP (C, D, A, B, 17, 0xffff5bb1);
|
||||
OP (B, C, D, A, 22, 0x895cd7be);
|
||||
OP (A, B, C, D, 7, 0x6b901122);
|
||||
OP (D, A, B, C, 12, 0xfd987193);
|
||||
OP (C, D, A, B, 17, 0xa679438e);
|
||||
OP (B, C, D, A, 22, 0x49b40821);
|
||||
|
||||
/* For the second to fourth round we have the possibly swapped words
|
||||
in CORRECT_WORDS. Redefine the macro to take an additional first
|
||||
argument specifying the function to use. */
|
||||
#undef OP
|
||||
#define OP(f, a, b, c, d, k, s, T) \
|
||||
do \
|
||||
{ \
|
||||
a += f (b, c, d) + correct_words[k] + T; \
|
||||
CYCLIC (a, s); \
|
||||
a += b; \
|
||||
} \
|
||||
while (0)
|
||||
|
||||
/* Round 2. */
|
||||
OP (FG, A, B, C, D, 1, 5, 0xf61e2562);
|
||||
OP (FG, D, A, B, C, 6, 9, 0xc040b340);
|
||||
OP (FG, C, D, A, B, 11, 14, 0x265e5a51);
|
||||
OP (FG, B, C, D, A, 0, 20, 0xe9b6c7aa);
|
||||
OP (FG, A, B, C, D, 5, 5, 0xd62f105d);
|
||||
OP (FG, D, A, B, C, 10, 9, 0x02441453);
|
||||
OP (FG, C, D, A, B, 15, 14, 0xd8a1e681);
|
||||
OP (FG, B, C, D, A, 4, 20, 0xe7d3fbc8);
|
||||
OP (FG, A, B, C, D, 9, 5, 0x21e1cde6);
|
||||
OP (FG, D, A, B, C, 14, 9, 0xc33707d6);
|
||||
OP (FG, C, D, A, B, 3, 14, 0xf4d50d87);
|
||||
OP (FG, B, C, D, A, 8, 20, 0x455a14ed);
|
||||
OP (FG, A, B, C, D, 13, 5, 0xa9e3e905);
|
||||
OP (FG, D, A, B, C, 2, 9, 0xfcefa3f8);
|
||||
OP (FG, C, D, A, B, 7, 14, 0x676f02d9);
|
||||
OP (FG, B, C, D, A, 12, 20, 0x8d2a4c8a);
|
||||
|
||||
/* Round 3. */
|
||||
OP (FH, A, B, C, D, 5, 4, 0xfffa3942);
|
||||
OP (FH, D, A, B, C, 8, 11, 0x8771f681);
|
||||
OP (FH, C, D, A, B, 11, 16, 0x6d9d6122);
|
||||
OP (FH, B, C, D, A, 14, 23, 0xfde5380c);
|
||||
OP (FH, A, B, C, D, 1, 4, 0xa4beea44);
|
||||
OP (FH, D, A, B, C, 4, 11, 0x4bdecfa9);
|
||||
OP (FH, C, D, A, B, 7, 16, 0xf6bb4b60);
|
||||
OP (FH, B, C, D, A, 10, 23, 0xbebfbc70);
|
||||
OP (FH, A, B, C, D, 13, 4, 0x289b7ec6);
|
||||
OP (FH, D, A, B, C, 0, 11, 0xeaa127fa);
|
||||
OP (FH, C, D, A, B, 3, 16, 0xd4ef3085);
|
||||
OP (FH, B, C, D, A, 6, 23, 0x04881d05);
|
||||
OP (FH, A, B, C, D, 9, 4, 0xd9d4d039);
|
||||
OP (FH, D, A, B, C, 12, 11, 0xe6db99e5);
|
||||
OP (FH, C, D, A, B, 15, 16, 0x1fa27cf8);
|
||||
OP (FH, B, C, D, A, 2, 23, 0xc4ac5665);
|
||||
|
||||
/* Round 4. */
|
||||
OP (FI, A, B, C, D, 0, 6, 0xf4292244);
|
||||
OP (FI, D, A, B, C, 7, 10, 0x432aff97);
|
||||
OP (FI, C, D, A, B, 14, 15, 0xab9423a7);
|
||||
OP (FI, B, C, D, A, 5, 21, 0xfc93a039);
|
||||
OP (FI, A, B, C, D, 12, 6, 0x655b59c3);
|
||||
OP (FI, D, A, B, C, 3, 10, 0x8f0ccc92);
|
||||
OP (FI, C, D, A, B, 10, 15, 0xffeff47d);
|
||||
OP (FI, B, C, D, A, 1, 21, 0x85845dd1);
|
||||
OP (FI, A, B, C, D, 8, 6, 0x6fa87e4f);
|
||||
OP (FI, D, A, B, C, 15, 10, 0xfe2ce6e0);
|
||||
OP (FI, C, D, A, B, 6, 15, 0xa3014314);
|
||||
OP (FI, B, C, D, A, 13, 21, 0x4e0811a1);
|
||||
OP (FI, A, B, C, D, 4, 6, 0xf7537e82);
|
||||
OP (FI, D, A, B, C, 11, 10, 0xbd3af235);
|
||||
OP (FI, C, D, A, B, 2, 15, 0x2ad7d2bb);
|
||||
OP (FI, B, C, D, A, 9, 21, 0xeb86d391);
|
||||
|
||||
/* Add the starting values of the context. */
|
||||
A += A_save;
|
||||
B += B_save;
|
||||
C += C_save;
|
||||
D += D_save;
|
||||
}
|
||||
|
||||
/* Put checksum in context given as argument. */
|
||||
ctx->A = A;
|
||||
ctx->B = B;
|
||||
ctx->C = C;
|
||||
ctx->D = D;
|
||||
}
|
||||
|
||||
static void
|
||||
md5_get_value (gpointer test, GValue * value)
|
||||
{
|
||||
MD5Test *ctx = test;
|
||||
|
||||
if (ctx->result[0] == 0) {
|
||||
gchar *str = g_new (gchar, 33);
|
||||
|
||||
str[32] = 0;
|
||||
md5_read_ctx (ctx, str);
|
||||
g_value_set_string_take_ownership (value, str);
|
||||
} else {
|
||||
g_value_set_string (value, ctx->result);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
*** TESTINFO ***
|
||||
*/
|
||||
|
||||
const GstTestInfo tests[] = {
|
||||
{length_get_spec, length_new, length_add,
|
||||
length_finish, length_get_value, g_free},
|
||||
{buffer_count_get_spec, length_new, buffer_count_add,
|
||||
length_finish, length_get_value, g_free},
|
||||
{timedur_get_spec, timedur_new, timedur_add,
|
||||
timedur_finish, timedur_get_value, g_free},
|
||||
{md5_get_spec, md5_new, md5_add,
|
||||
md5_finish, md5_get_value, g_free}
|
||||
};
|
44
gst/debug/tests.h
Normal file
44
gst/debug/tests.h
Normal file
|
@ -0,0 +1,44 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) 2004 Benjamin Otte <otte@gnome.org>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or (at your option) any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*/
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
||||
#ifndef __GST_TESTS_H__
|
||||
#define __GST_TESTS_H__
|
||||
|
||||
|
||||
typedef struct _GstTestInfo GstTestInfo;
|
||||
|
||||
struct _GstTestInfo {
|
||||
GParamSpec * (* get_spec) (const GstTestInfo *info, gboolean compare_value);
|
||||
gpointer (* new) (const GstTestInfo *info);
|
||||
void (* add) (gpointer test,
|
||||
GstBuffer *buffer);
|
||||
gboolean (* finish) (gpointer test, GValue *value);
|
||||
void (* get_value) (gpointer test,
|
||||
GValue *value);
|
||||
void (* free) (gpointer test);
|
||||
};
|
||||
|
||||
extern const GstTestInfo tests[];
|
||||
/* keep up to date! */
|
||||
#define TESTS_COUNT (4)
|
||||
|
||||
|
||||
#endif /* __GST_TESTS_H__ */
|
Loading…
Reference in a new issue