From patchwork Sat Aug 28 17:37:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vedant Paranjape X-Patchwork-Id: 13561 Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 5B3AABDC71 for ; Sat, 28 Aug 2021 17:38:20 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 67D336916A; Sat, 28 Aug 2021 19:38:19 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="oNlkZsg+"; dkim-atps=neutral Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 6EFF261534 for ; Sat, 28 Aug 2021 19:38:18 +0200 (CEST) Received: by mail-pg1-x536.google.com with SMTP id t1so9056010pgv.3 for ; Sat, 28 Aug 2021 10:38:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=603EEYN89S0HBE62GT7FaG2DlfPiUpbGf10mLvzfYwM=; b=oNlkZsg+4S0POBUxU9WsSBPs9kadnTn+z8/n6lq2YWei7ZgQ/zLyMU2QAwU96DFmYs LCPWZb4Q2qq6aalpFH19j1E62T23Ypvsq4eR7ucKDt/YjsbhKWh6TCUOxOovrYFI5h8I JaDfM+VrycVhTy7kfBg9xHkiIQNE2DUJhK2YgiyAWJiS5OudXvp392/gW1o6TGEw5sly P2NYRrBKjPo8AfiMzTZrZ5nJWzw9WFNG8SYIkoCZESYSYYUSKFhmglxL1O/LBNA1HX1H LpqTVFdv/gl+/8BEhYYFwg0w+u5o9gIJDd70n31eJK9O7Rw3Y70j1vPZpWP5oz0rHsmV lQcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=603EEYN89S0HBE62GT7FaG2DlfPiUpbGf10mLvzfYwM=; b=gxK6uIVM0PCo8/ys+9lgOveLzbaxU36qr+afbCZnzD7lD7owL99Do5XEOYC+hYm+KC r/r/ka/I9hbUikFDAJ9n4Ht9mR1pyHMvoxUl9k9nriVLRIOVnD/9EFvlXFIxOK1LhTh6 Yit3s4HAhxinSV6dBmqLnfQPTIYFT4iqHD8UnTGYjYn8mr7Ya3AUKs/ox9ShtTEG0uko bh4ttScTuwn654yvc34bJOQl7qDcq+81njWLnWsuXTZF3zrAGlFCH7ilJ4ZbX/B5EOjx NKRBRZCJ1grhcgGpnKfj85UeEetthu0NRdPdea5WGoTT9fEZhCTtjcDTdYhZ52mLUY2B zUAA== X-Gm-Message-State: AOAM533Mh4tDZr247lZO3WeL9Shtvx62bgHskMj8gQTPikRMWtHn0svv 8PlYi+rw0/Tud9l8GCbGDGWAr08Cl2gCc/i1 X-Google-Smtp-Source: ABdhPJyfyQfKW1B2XF+IgnbzWqLl6V0fF4+ZWRSvPNiEz3MMdyNPO+80OWiF0oJaoIs7/yMfLui+Xw== X-Received: by 2002:a65:51c8:: with SMTP id i8mr13142896pgq.451.1630172296159; Sat, 28 Aug 2021 10:38:16 -0700 (PDT) Received: from localhost.localdomain ([1.186.166.201]) by smtp.googlemail.com with ESMTPSA id y8sm10680046pfe.162.2021.08.28.10.38.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Aug 2021 10:38:15 -0700 (PDT) From: Vedant Paranjape To: libcamera-devel@lists.libcamera.org Date: Sat, 28 Aug 2021 23:07:53 +0530 Message-Id: <20210828173753.336859-1-vedantparanjape160201@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Subject: [libcamera-devel] [PATCH v2] test: gstreamer: Add a test for gstreamer multi stream X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Vedant Paranjape Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" This patch adds a test to test if multi stream using libcamera's gstreamer element works. We need to work around one issue with ASan when enabled in the build: - glib has a known leak at initialization time. This is covered by the suppression file shipped with glib, but it's not clear how to use it automatically. For now, disable leak detection to avoid test failures. Signed-off-by: Vedant Paranjape --- .../gstreamer/gstreamer_multi_stream_test.cpp | 225 ++++++++++++++++++ test/gstreamer/meson.build | 1 + 2 files changed, 226 insertions(+) create mode 100644 test/gstreamer/gstreamer_multi_stream_test.cpp diff --git a/test/gstreamer/gstreamer_multi_stream_test.cpp b/test/gstreamer/gstreamer_multi_stream_test.cpp new file mode 100644 index 00000000..e32b07a4 --- /dev/null +++ b/test/gstreamer/gstreamer_multi_stream_test.cpp @@ -0,0 +1,225 @@ +/* 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(); + if (cm.cameras()[0]->streams().size() <= 1) { + cm.stop(); + return TestSkip; + } + cm.stop(); + + /* 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; + + /* 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"); + } + + 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)