Updating prebuilts and/or headers

f033de710a45790f16c7a2c1b693a1950187d084 - opencv-sample-apps/README 78f8540a5b70d8f6f33af45dce451967e058c457 - opencv-sample-apps/opencv_camera/Makefile db64c69a108016f4caa0562a86a9316933453ae6 - opencv-sample-apps/opencv_camera/opencv_gst_camera.cpp b04f70bbeeeb21aaedc10c2c3560b643bc005ea9 - opencv-sample-apps/opencv_encoder/Makefile afd48b88d80c0e8dd65329a0a0192ef0a3c83e7f - opencv-sample-apps/opencv_encoder/opencv_gst_encoder.cpp c15cb929e1a9a8fb03830c5ece6b68ea773ce687 - opencv-sample-apps/opencv_decoder/Makefile ebb52673c89af5c951ca7e62d7fa49f1700b18a6 - opencv-sample-apps/opencv_decoder/opencv_gst_decoder.cpp Change-Id: Ic539645554b25709ffb8960ad5202d774112d534
2025-12-22 09:22:51 +03:00 · 2024-09-27 12:48:57 -07:00
parent a1994a5a46
commit 4bf866bca8
10 changed files with 926 additions and 0 deletions
--- a/opencv-sample-apps/opencv_camera/Makefile
+++ b/opencv-sample-apps/opencv_camera/Makefile
@@ -0,0 +1,51 @@
+###############################################################################
+#
+# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#  * Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#  * Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#  * Neither the name of NVIDIA CORPORATION nor the names of its
+#    contributors may be used to endorse or promote products derived
+#    from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+###############################################################################
+
+include ../Rules.mk
+
+APP := opencv_nvgstcam
+
+SRCS := \
+	opencv_gst_camera.cpp
+
+OBJS := $(SRCS:.cpp=.o)
+
+all: $(APP)
+
+%.o: %.cpp
+	@echo "Compiling: $<"
+	$(CPP) $(CPPFLAGS) -c $<
+
+$(APP): $(OBJS)
+	@echo "Linking: $@"
+	$(CPP) -o $@ $(OBJS) $(CPPFLAGS) $(LDFLAGS)
+
+clean:
+	$(AT)rm -rf $(APP) $(OBJS)
--- a/opencv-sample-apps/opencv_camera/opencv_gst_camera.cpp
+++ b/opencv-sample-apps/opencv_camera/opencv_gst_camera.cpp
@@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <iostream>
+#include <string>
+#include <sstream>
+#include <chrono>
+#include <opencv2/core/core.hpp>
+#include <opencv2/videoio/videoio.hpp>
+#include <opencv2/highgui/highgui.hpp>
+#include <opencv2/imgproc/imgproc.hpp>
+
+static std::string create_capture (int width, int height, int fps);
+
+static void help()
+{
+    std::cout << "\nThis is a sample OpenCV application to demonstrate "
+    "CSI-camera capture pipeline for NVIDIA accelerated GStreamer.\n\n"
+    "./opencv_nvgstcam [--Options]\n\n"
+    "OPTIONS:\n"
+    "\t-h,--help            Prints this message\n"
+    "\t--width              Capture width [Default = 1280]\n"
+    "\t--height             Capture height [Default = 720]\n"
+    "\t--fps                Frames per second [Default = 30]\n"
+    "\tq                    Runtime command to stop capture\n\n"
+    << std::endl;
+
+}
+
+static std::string create_capture (int width, int height, int fps)
+{
+    std::stringstream pipeline_str;
+    pipeline_str << "nvarguscamerasrc ! video/x-raw(memory:NVMM), width=(int)"
+        << std::to_string(width) << ", height=(int)" << std::to_string(height)
+        << ", format=(string)NV12, framerate=(fraction)" << std::to_string(fps)
+        << "/1 ! nvvidconv ! video/x-raw, format=(string)I420 ! videoconvert"
+        " ! video/x-raw, format=(string)BGR ! appsink ";
+
+    return pipeline_str.str();
+}
+
+int main(int argc, char const *argv[])
+{
+    unsigned int fps;
+    int width;
+    int height;
+    int return_val = 0;
+    double fps_calculated;
+    cv::VideoCapture capture;
+    cv::Mat frame;
+    cv::TickMeter ticks;
+
+    const std::string keys =
+    "{h help         |     | message }"
+    "{width          |1280 | width }"
+    "{height         |720  | height }"
+    "{fps            |30   | frame per second }"
+    ;
+
+    cv::CommandLineParser cmd_parser(argc, argv, keys);
+
+    if (cmd_parser.has("help"))
+    {
+        help();
+        goto cleanup;
+    }
+
+    fps = cmd_parser.get<unsigned int>("fps");
+    width = cmd_parser.get<int>("width");
+    height = cmd_parser.get<int>("height");
+
+    if (!cmd_parser.check())
+    {
+        cmd_parser.printErrors();
+        help();
+        return_val = -1;
+        goto cleanup;
+    }
+
+    capture.open(create_capture(width, height, fps), cv::CAP_GSTREAMER);
+
+    if (!capture.isOpened())
+    {
+        std::cerr << "Failed to open VideoCapture" << std::endl;
+        return_val = -4;
+        goto cleanup;
+    }
+
+    while (true)
+    {
+        ticks.start();
+        capture >> frame;
+
+        // computations
+        cv::imshow("Capture Window", frame);
+        int key = cv::waitKey(1);
+
+        // 'q' for termination
+        if (key == 'q' )
+        {
+            break;
+        }
+        ticks.stop();
+    }
+
+    if (ticks.getCounter() == 0)
+    {
+        std::cerr << "No frames processed" << std::endl;
+        return_val = -10;
+        goto cleanup;
+    }
+
+    fps_calculated = ticks.getCounter() / ticks.getTimeSec();
+    std::cout << "Fps observed " << fps_calculated << std::endl;
+
+cleanup:
+    capture.release();
+    return return_val;
+}