1 /* GStreamer
2  *
3  * unit test for mplex
4  *
5  * Copyright (C) <2008> Mark Nauwelaerts <mnauw@users.sourceforge.net>
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Library General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Library General Public License for more details.
16  *
17  * You should have received a copy of the GNU Library General Public
18  * License along with this library; if not, write to the
19  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #include <unistd.h>
24 
25 #include <gst/check/gstcheck.h>
26 
27 /* For ease of programming we use globals to keep refs for our floating
28  * src and sink pads we create; otherwise we always have to do get_pad,
29  * get_peer, and then remove references in every test function */
30 static GstPad *mysrcpad, *mysinkpad;
31 
32 #define AUDIO_CAPS_STRING "audio/mpeg, " \
33                            "mpegversion = (int) 1, " \
34                            "layer = (int) 2, " \
35                            "rate = (int) 48000, " \
36                            "channels = (int) 1, " \
37                            "framerate = (fraction) 25/1"
38 
39 #define MPEG_CAPS_STRING "video/mpeg, " \
40                            "systemstream = (bool) true"
41 
42 static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
43     GST_PAD_SINK,
44     GST_PAD_ALWAYS,
45     GST_STATIC_CAPS (MPEG_CAPS_STRING));
46 
47 static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
48     GST_PAD_SRC,
49     GST_PAD_ALWAYS,
50     GST_STATIC_CAPS (AUDIO_CAPS_STRING));
51 
52 
53 /* some global vars, makes it easy as for the ones above */
54 static GMutex mplex_mutex;
55 static GCond mplex_cond;
56 static gboolean arrived_eos;
57 
58 /* another easy hack, some mp2 audio data that should please mplex
59  * perhaps less would also do, but anyway ...
60  */
61 /* begin binary data: */
62 guint8 mp2_data[] =             /* 384 */
63 {
64   0xFF, 0xFD, 0x84, 0xC4, 0x75, 0x56, 0x46, 0x54, 0x54, 0x5B, 0x2E, 0xB0,
65   0x80, 0x00, 0x00, 0xAB, 0xAA, 0xAE, 0x8A, 0xAC, 0xB4, 0xD7, 0x9D, 0xB6,
66   0xDB, 0x5D, 0xB3, 0xDB, 0x8C, 0xF5, 0xCF, 0x8D, 0x38, 0xD2, 0xFB, 0xF3,
67   0x66, 0x59, 0x6C, 0x62, 0x49, 0x16, 0x59, 0x65, 0xAC, 0xE8, 0x8C, 0x6F,
68   0x18, 0x48, 0x6B, 0x96, 0xD0, 0xD2, 0x68, 0xA6, 0xC5, 0x42, 0x45, 0xA1,
69   0x28, 0x42, 0xBC, 0xA3, 0x99, 0x39, 0x53, 0x20, 0xBA, 0x4A, 0x56, 0x30,
70   0xC5, 0x81, 0xE6, 0x16, 0x6B, 0x77, 0x67, 0x24, 0x29, 0xA9, 0x11, 0x7E,
71   0xA9, 0xA8, 0x41, 0xE1, 0x11, 0x48, 0x79, 0xB1, 0xC2, 0x30, 0x39, 0x2D,
72   0x40, 0x9A, 0xEC, 0x12, 0x65, 0xC5, 0xDD, 0x68, 0x8D, 0x6A, 0xF4, 0x63,
73   0x02, 0xAE, 0xE5, 0x1B, 0xAA, 0xA3, 0x87, 0x1B, 0xDE, 0xB8, 0x6B, 0x7A,
74   0x9B, 0xAF, 0xF7, 0x1A, 0x39, 0x33, 0x9A, 0x17, 0x56, 0x64, 0x0D, 0xDC,
75   0xE2, 0x15, 0xEF, 0x93, 0x24, 0x9A, 0x8E, 0x59, 0x49, 0x7D, 0x45, 0x68,
76   0x2D, 0x9F, 0x85, 0x71, 0xA8, 0x99, 0xC4, 0x6D, 0x26, 0x46, 0x40, 0xBA,
77   0x9A, 0xD6, 0x3D, 0xCF, 0x45, 0xB2, 0xC6, 0xF3, 0x16, 0x21, 0x8B, 0xA8,
78   0xD5, 0x59, 0x78, 0x87, 0xB7, 0x42, 0x9A, 0x65, 0x59, 0x9A, 0x99, 0x58,
79   0x71, 0x26, 0x20, 0x33, 0x76, 0xEE, 0x96, 0x70, 0xF2, 0xBC, 0xB3, 0x7D,
80   0x6B, 0x35, 0x48, 0x37, 0x59, 0x21, 0xC4, 0x87, 0x8A, 0xD8, 0x05, 0x36,
81   0xA5, 0x1A, 0x5C, 0x0A, 0x4F, 0x4B, 0x39, 0x40, 0x39, 0x9A, 0x17, 0xD9,
82   0xAD, 0x21, 0xBE, 0x64, 0xB4, 0x6B, 0x13, 0x03, 0x20, 0x95, 0xDA, 0x18,
83   0x89, 0x88, 0xB5, 0x44, 0xE2, 0x5D, 0x4F, 0x12, 0x19, 0xC4, 0x1A, 0x1A,
84   0x07, 0x07, 0x91, 0xA8, 0x4C, 0x66, 0xB4, 0x81, 0x33, 0xDE, 0xDB, 0xD6,
85   0x24, 0x17, 0xD2, 0x9A, 0x4E, 0xC9, 0x88, 0xAB, 0x44, 0xAA, 0x25, 0x4A,
86   0x79, 0xA9, 0x39, 0x39, 0x0D, 0x2D, 0x20, 0x76, 0x68, 0x5F, 0x65, 0x25,
87   0xCF, 0x29, 0x27, 0x67, 0xB3, 0x68, 0x6C, 0xE5, 0xDC, 0xA5, 0x79, 0xC9,
88   0xAB, 0x46, 0x9D, 0x21, 0x35, 0x82, 0x98, 0xBA, 0x0E, 0x26, 0x39, 0x20,
89   0xAE, 0x1B, 0x92, 0x3D, 0xF7, 0x9F, 0x29, 0xB5, 0xF3, 0xB6, 0x38, 0x68,
90   0x65, 0x99, 0xAD, 0xD8, 0x98, 0x56, 0x5A, 0x61, 0x8D, 0xCB, 0x4A, 0x29,
91   0x43, 0x0E, 0x2D, 0x33, 0x40, 0x6A, 0xB7, 0x5F, 0x49, 0xC9, 0x81, 0xE4,
92   0x0D, 0x6F, 0x15, 0x58, 0x1B, 0x9E, 0x74, 0x20, 0x5D, 0x97, 0x5B, 0x5A,
93   0xDF, 0x92, 0x2D, 0x5A, 0x98, 0xCE, 0x50, 0x20, 0x1A, 0x33, 0x6A, 0x67,
94   0xE2, 0x18, 0x94, 0xA4, 0x70, 0x8F, 0x5F, 0x11, 0x85, 0xB0, 0xE5, 0xD8,
95   0xD4, 0xAA, 0x86, 0xAE, 0x1C, 0x0D, 0xA1, 0x6B, 0x21, 0xB9, 0xC2, 0x17
96 };
97 
98 /* end binary data. size = 384 bytes */
99 
100 static gboolean
test_sink_event(GstPad * pad,GstObject * parent,GstEvent * event)101 test_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
102 {
103 
104   switch (GST_EVENT_TYPE (event)) {
105     case GST_EVENT_EOS:
106       g_mutex_lock (&mplex_mutex);
107       arrived_eos = TRUE;
108       g_cond_signal (&mplex_cond);
109       g_mutex_unlock (&mplex_mutex);
110       break;
111     default:
112       break;
113   }
114 
115   return gst_pad_event_default (pad, parent, event);
116 }
117 
118 /* setup and teardown needs some special handling for muxer */
119 static GstPad *
setup_src_pad(GstElement * element,GstStaticPadTemplate * template,GstCaps * caps,const gchar * sinkname)120 setup_src_pad (GstElement * element,
121     GstStaticPadTemplate * template, GstCaps * caps, const gchar * sinkname)
122 {
123   GstPad *srcpad, *sinkpad;
124 
125   GST_DEBUG_OBJECT (element, "setting up sending pad");
126   /* sending pad */
127   srcpad = gst_pad_new_from_static_template (template, "src");
128   fail_if (srcpad == NULL, "Could not create a srcpad");
129   ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 1);
130 
131   sinkpad = gst_element_get_request_pad (element, sinkname);
132   fail_if (sinkpad == NULL, "Could not get sink pad from %s",
133       GST_ELEMENT_NAME (element));
134   /* references are owned by: 1) us, 2) mplex, 3) mplex list */
135   ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 3);
136   if (caps)
137     fail_unless (gst_pad_set_caps (srcpad, caps));
138   fail_unless (gst_pad_link (srcpad, sinkpad) == GST_PAD_LINK_OK,
139       "Could not link source and %s sink pads", GST_ELEMENT_NAME (element));
140   gst_object_unref (sinkpad);   /* because we got it higher up */
141 
142   /* references are owned by: 1) mplex, 2) mplex list */
143   ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 2);
144 
145   return srcpad;
146 }
147 
148 static void
teardown_src_pad(GstElement * element,const gchar * sinkname)149 teardown_src_pad (GstElement * element, const gchar * sinkname)
150 {
151   GstPad *srcpad, *sinkpad;
152   gchar *padname;
153 
154   /* clean up floating src pad */
155   padname = g_strdup (sinkname);
156   memcpy (strchr (padname, '%'), "0", 2);
157   sinkpad = gst_element_get_static_pad (element, padname);
158   g_free (padname);
159   /* pad refs held by 1) mplex 2) mplex list and 3) us (through _get) */
160   ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 3);
161   srcpad = gst_pad_get_peer (sinkpad);
162 
163   gst_pad_unlink (srcpad, sinkpad);
164 
165   /* after unlinking, pad refs still held by
166    * 1) mplex and 2) mplex list and 3) us (through _get) */
167   ASSERT_OBJECT_REFCOUNT (sinkpad, "sinkpad", 3);
168   gst_object_unref (sinkpad);
169   /* one more ref is held by element itself */
170 
171   /* pad refs held by both creator and this function (through _get_peer) */
172   ASSERT_OBJECT_REFCOUNT (srcpad, "srcpad", 2);
173   gst_object_unref (srcpad);
174   gst_object_unref (srcpad);
175 
176 }
177 
178 static GstElement *
setup_mplex(void)179 setup_mplex (void)
180 {
181   GstElement *mplex;
182 
183   GST_DEBUG ("setup_mplex");
184   mplex = gst_check_setup_element ("mplex");
185   mysrcpad = setup_src_pad (mplex, &srctemplate, NULL, "audio_%u");
186   mysinkpad = gst_check_setup_sink_pad (mplex, &sinktemplate);
187   gst_pad_set_active (mysrcpad, TRUE);
188   gst_pad_set_active (mysinkpad, TRUE);
189 
190   /* need to know when we are eos */
191   gst_pad_set_event_function (mysinkpad, test_sink_event);
192 
193   /* and notify the test run */
194   g_mutex_init (&mplex_mutex);
195   g_cond_init (&mplex_cond);
196 
197   return mplex;
198 }
199 
200 static void
cleanup_mplex(GstElement * mplex)201 cleanup_mplex (GstElement * mplex)
202 {
203   GST_DEBUG ("cleanup_mplex");
204   gst_element_set_state (mplex, GST_STATE_NULL);
205 
206   gst_pad_set_active (mysrcpad, FALSE);
207   gst_pad_set_active (mysinkpad, FALSE);
208   teardown_src_pad (mplex, "audio_%u");
209   gst_check_teardown_sink_pad (mplex);
210   gst_check_teardown_element (mplex);
211 
212   g_mutex_clear (&mplex_mutex);
213   g_cond_clear (&mplex_cond);
214 
215   gst_deinit ();
216 }
217 
GST_START_TEST(test_audio_pad)218 GST_START_TEST (test_audio_pad)
219 {
220   GstElement *mplex;
221   GstBuffer *inbuffer, *outbuffer;
222   GstCaps *caps;
223   int i, num_buffers;
224 
225   /* PES pack_start_code */
226   guint8 data0[] = { 0x00, 0x00, 0x01, 0xba };
227   /* MPEG_program_end_code */
228   guint8 data1[] = { 0x00, 0x00, 0x01, 0xb9 };
229 
230   mplex = setup_mplex ();
231   fail_unless (gst_element_set_state (mplex,
232           GST_STATE_PLAYING) == GST_STATE_CHANGE_SUCCESS,
233       "could not set to playing");
234 
235   caps = gst_caps_from_string (AUDIO_CAPS_STRING);
236   gst_check_setup_events_with_stream_id (mysrcpad, mplex, caps,
237       GST_FORMAT_TIME, "mplex-test");
238   gst_caps_unref (caps);
239 
240   /* corresponds to I420 buffer for the size mentioned in the caps */
241   inbuffer = gst_buffer_new_and_alloc (sizeof (mp2_data));
242   gst_buffer_fill (inbuffer, 0, mp2_data, sizeof (mp2_data));
243   GST_BUFFER_TIMESTAMP (inbuffer) = 0;
244   ASSERT_BUFFER_REFCOUNT (inbuffer, "inbuffer", 1);
245   fail_unless (gst_pad_push (mysrcpad, inbuffer) == GST_FLOW_OK);
246 
247   /* need to force eos and state change to make sure the encoding task ends */
248   fail_unless (gst_pad_push_event (mysrcpad, gst_event_new_eos ()) == TRUE);
249   /* need to wait a bit to make sure mplex task digested all this */
250   g_mutex_lock (&mplex_mutex);
251   while (!arrived_eos)
252     g_cond_wait (&mplex_cond, &mplex_mutex);
253   g_mutex_unlock (&mplex_mutex);
254 
255   num_buffers = g_list_length (buffers);
256   /* well, we do not really know much with mplex, but at least something ... */
257   fail_unless (num_buffers >= 1);
258 
259   /* clean up buffers */
260   for (i = 0; i < num_buffers; ++i) {
261     outbuffer = GST_BUFFER (buffers->data);
262     fail_if (outbuffer == NULL);
263 
264     if (i == 0) {
265       fail_unless (gst_buffer_get_size (outbuffer) >= sizeof (data0));
266       fail_unless (gst_buffer_memcmp (outbuffer, 0, data0,
267               sizeof (data0)) == 0);
268     }
269     if (i == num_buffers - 1) {
270       fail_unless (gst_buffer_get_size (outbuffer) >= sizeof (data1));
271       fail_unless (gst_buffer_memcmp (outbuffer,
272               gst_buffer_get_size (outbuffer) - sizeof (data1), data1,
273               sizeof (data1)) == 0);
274     }
275     buffers = g_list_remove (buffers, outbuffer);
276 
277     ASSERT_BUFFER_REFCOUNT (outbuffer, "outbuffer", 1);
278     gst_buffer_unref (outbuffer);
279     outbuffer = NULL;
280   }
281 
282   cleanup_mplex (mplex);
283   g_list_free (buffers);
284   buffers = NULL;
285 }
286 
287 GST_END_TEST;
288 
289 static Suite *
mplex_suite(void)290 mplex_suite (void)
291 {
292   Suite *s = suite_create ("mplex");
293   TCase *tc_chain = tcase_create ("general");
294 
295   suite_add_tcase (s, tc_chain);
296   tcase_add_test (tc_chain, test_audio_pad);
297 
298   return s;
299 }
300 
301 GST_CHECK_MAIN (mplex);
302