/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2021, Vedant Paranjape * * libcamera Gstreamer element API tests */ #include "gstreamer_test.h" #include "test.h" using namespace std; extern "C" { const char *__asan_default_options() { /* * Disable leak detection due to a known global variable initialization * leak in glib's g_quark_init(). This should ideally be handled by * using a suppression file instead of disabling leak detection. */ return "detect_leaks=false"; } } GstreamerTest::GstreamerTest() : pipeline_(nullptr), libcameraSrc_(nullptr) { /* * GStreamer by default spawns a process to run the * gst-plugin-scanner helper. If libcamera is compiled with ASan * enabled, and as GStreamer is most likely not, this causes the * ASan link order check to fail when gst-plugin-scanner * dlopen()s the plugin as many libraries will have already been * loaded by then. Fix this issue by disabling spawning of a * child helper process when scanning the build directory for * plugins. */ gst_registry_fork_set_enabled(false); /* Initialize GStreamer */ g_autoptr(GError) errInit = NULL; if (!gst_init_check(nullptr, nullptr, &errInit)) { g_printerr("Could not initialize GStreamer: %s\n", errInit ? errInit->message : "unknown error"); status_ = TestFail; return; } /* * Remove the system libcamera plugin, if any, and add the * plugin from the build directory. */ GstRegistry *registry = gst_registry_get(); g_autoptr(GstPlugin) plugin = gst_registry_lookup(registry, "libgstlibcamera.so"); if (plugin) gst_registry_remove_plugin(registry, plugin); std::string path = libcamera::utils::libcameraBuildPath() + "src/gstreamer"; if (!gst_registry_scan_path(registry, path.c_str())) { g_printerr("Failed to add plugin to registry\n"); status_ = TestFail; return; } status_ = TestPass; } GstreamerTest::~GstreamerTest() { g_clear_object(&pipeline_); g_clear_object(&libcameraSrc_); gst_deinit(); } int GstreamerTest::createPipeline() { libcameraSrc_ = gst_element_factory_make("libcamerasrc", "libcamera"); pipeline_ = gst_pipeline_new("test-pipeline"); if (!libcameraSrc_ || !pipeline_) { g_printerr("Unable to create create pipeline %p.%p\n", libcameraSrc_, pipeline_); return TestFail; } g_object_ref_sink(libcameraSrc_); return TestPass; } int GstreamerTest::startPipeline() { GstStateChangeReturn ret; /* Start playing */ ret = gst_element_set_state(pipeline_, GST_STATE_PLAYING); if (ret == GST_STATE_CHANGE_FAILURE) { g_printerr("Unable to set the pipeline to the playing state.\n"); return TestFail; } return TestPass; } int GstreamerTest::processEvent() { /* Wait until error or EOS or timeout after 2 seconds */ constexpr GstMessageType msgType = static_cast(GST_MESSAGE_ERROR | GST_MESSAGE_EOS); constexpr GstClockTime timeout = 2 * GST_SECOND; g_autoptr(GstBus) bus = gst_element_get_bus(pipeline_); g_autoptr(GstMessage) msg = gst_bus_timed_pop_filtered(bus, timeout, msgType); gst_element_set_state(pipeline_, GST_STATE_NULL); /* Parse error message */ if (msg == NULL) return TestPass; switch (GST_MESSAGE_TYPE(msg)) { case GST_MESSAGE_ERROR: printError(msg); break; case GST_MESSAGE_EOS: g_print("End-Of-Stream reached.\n"); break; default: g_printerr("Unexpected message received.\n"); break; } return TestFail; } void GstreamerTest::printError(GstMessage *msg) { g_autoptr(GError) err = NULL; g_autofree gchar *debug_info = NULL; gst_message_parse_error(msg, &err, &debug_info); g_printerr("Error received from element %s: %s\n", GST_OBJECT_NAME(msg->src), err->message); g_printerr("Debugging information: %s\n", debug_info ? debug_info : "none"); } ef='#n24'>24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252