diff --git a/test/gstreamer/gstreamer_multi_stream_test.cpp b/test/gstreamer/gstreamer_multi_stream_test.cpp new file mode 100644 index 00000000..4f54b385 --- /dev/null +++ b/test/gstreamer/gstreamer_multi_stream_test.cpp @@ -0,0 +1,238 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2021, Vedant Paranjape + * + * gstreamer_single_stream_test.cpp - GStreamer single stream capture test + */ + +#include +#include + +#include + +#include + +#include "libcamera/internal/source_paths.h" + +#include + +#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"; +} +} + +class GstreamerSingleStreamTest : public Test +{ +protected: + int init() override + { + /* + * 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"); + + return TestFail; + } + + /* + * Remove the system libcamera plugin, if any, and add the + * plugin from the build directory. + */ + GstRegistry *registry = gst_registry_get(); + GstPlugin *plugin = gst_registry_lookup(registry, "libgstlibcamera.so"); + if (plugin) { + gst_registry_remove_plugin(registry, plugin); + gst_object_unref(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"); + gst_deinit(); + return TestFail; + } + + /* Check if platform support multistream output */ + libcamera::CameraManager cm; + cm.start(); + bool cameraFound = false; + for (auto &i : cm.cameras()) { + if (i->streams().size() > 1) { + cameraName = i->id(); + cameraFound = true; + cm.stop(); + break; + } + } + + if (!cameraFound) { + cm.stop(); + return TestSkip; + } + + /* Create the elements */ + libcameraSrc_ = gst_element_factory_make("libcamerasrc", "libcamera"); + convert0_ = gst_element_factory_make("videoconvert", "convert0"); + convert1_ = gst_element_factory_make("videoconvert", "convert1"); + sink0_ = gst_element_factory_make("fakesink", "sink0"); + sink1_ = gst_element_factory_make("fakesink", "sink1"); + queue0_ = gst_element_factory_make("queue", "camera_queue0"); + queue1_ = gst_element_factory_make("queue", "camera_queue1"); + + /* Create the empty pipeline_ */ + pipeline_ = gst_pipeline_new("test-pipeline"); + + if (!pipeline_ || !convert0_ || !convert1_ || !sink0_ || + !sink1_ || !queue0_ || !queue1_ || !libcameraSrc_) { + g_printerr("Not all elements could be created. %p.%p.%p.%p.%p.%p.%p.%p\n", + pipeline_, convert0_, convert1_, sink0_, + sink1_, queue0_, queue1_, libcameraSrc_); + if (pipeline_) + gst_object_unref(pipeline_); + if (convert0_) + gst_object_unref(convert0_); + if (convert1_) + gst_object_unref(convert1_); + if (sink0_) + gst_object_unref(sink0_); + if (sink1_) + gst_object_unref(sink1_); + if (queue0_) + gst_object_unref(queue0_); + if (queue1_) + gst_object_unref(queue1_); + if (libcameraSrc_) + gst_object_unref(libcameraSrc_); + gst_deinit(); + + return TestFail; + } + + return TestPass; + } + + void cleanup() override + { + gst_object_unref(pipeline_); + gst_deinit(); + } + + int run() override + { + GstStateChangeReturn ret; + + g_object_set(libcameraSrc_, "camera-name", cameraName.c_str(), NULL); + + /* Build the pipeline */ + gst_bin_add_many(GST_BIN(pipeline_), libcameraSrc_, queue0_, queue1_, + convert0_, convert1_, sink0_, sink1_, NULL); + if (gst_element_link_many(queue0_, convert0_, sink0_, NULL) != TRUE + || gst_element_link_many(queue1_, convert1_, sink1_, NULL) != TRUE) { + g_printerr("Elements could not be linked.\n"); + return TestFail; + } + + g_autoptr(GstPad) src_pad = gst_element_get_static_pad(libcameraSrc_, "src"); + g_autoptr(GstPad) request_pad = gst_element_get_request_pad(libcameraSrc_, "src_%u"); + GstPad *queue0_sink_pad = gst_element_get_static_pad(queue0_, "sink"); + GstPad *queue1_sink_pad = gst_element_get_static_pad(queue1_, "sink"); + + if (gst_pad_link(src_pad, queue0_sink_pad) != GST_PAD_LINK_OK + || gst_pad_link(request_pad, queue1_sink_pad) != GST_PAD_LINK_OK) { + if (queue0_sink_pad) + gst_object_unref(queue0_sink_pad); + if (queue1_sink_pad) + gst_object_unref(queue1_sink_pad); + g_printerr("Pads could not be linked.\n"); + return TestFail; + } + gst_object_unref(queue0_sink_pad); + gst_object_unref(queue1_sink_pad); + + /* 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; + } + + /* 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: + gstreamer_print_error(msg); + break; + case GST_MESSAGE_EOS: + g_print("End-Of-Stream reached.\n"); + break; + default: + g_printerr("Unexpected message received.\n"); + break; + } + + return TestFail; + } + +private: + void gstreamer_print_error(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"); + } + + std::string cameraName; + GstElement *pipeline_; + GstElement *libcameraSrc_; + GstElement *queue0_; + GstElement *queue1_; + GstElement *convert0_; + GstElement *convert1_; + GstElement *sink0_; + GstElement *sink1_; + +}; + +TEST_REGISTER(GstreamerSingleStreamTest) diff --git a/test/gstreamer/meson.build b/test/gstreamer/meson.build index b99aa0da..e28225b2 100644 --- a/test/gstreamer/meson.build +++ b/test/gstreamer/meson.build @@ -6,6 +6,7 @@ endif gstreamer_tests = [ ['single_stream_test', 'gstreamer_single_stream_test.cpp'], + ['multi_stream_test', 'gstreamer_multi_stream_test.cpp'], ] gstreamer_dep = dependency('gstreamer-1.0', required: true)