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b49f0d21cf
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: I4b8622004054c4dd3d90b7783bf60e1c2d72780b
155 lines
6.1 KiB
Plaintext
155 lines
6.1 KiB
Plaintext
###############################################################################
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#
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# Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of NVIDIA CORPORATION nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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# OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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###############################################################################
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These samples demonstrate how to integrate NVIDIA accelerated GStreamer
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plugins with the custom OpenCV software library to acquire frames for
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computation.
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-------------------------------------------------------------------------------
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Sample-wise contents:
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- opencv_camera:
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opencv_gst_camera.cpp- File for GStreamer nvarguscamerasrc plugin use case
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to use CSI camera for capture.
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- opencv_decoder:
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opencv_gst_decoder.cpp- File for GStreamer nvv4l2decoder plugin use case
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to decode an H264 mp4 file.
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- opencv_encoder:
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opencv_gst_encoder.cpp- The file opens a CSI nvarguscamerasrc camera pipeline
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for capture and encoding to an H264 mp4 file.
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-------------------------------------------------------------------------------
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Prerequisites:
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The development environment must include GStreamer libraries and OpenCV 3.3.1
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installed through JetPack.
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- GStreamer
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Installation command:
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sudo apt-get install libgstreamer1.0-0 gstreamer1.0-plugins-base \
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gstreamer1.0-libav gstreamer1.0-plugins-good gstreamer1.0-plugins-bad \
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gstreamer1.0-plugins-ugly gstreamer1.0-tools gstreamer1.0-alsa
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- OpenCV 3.3.1
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JetPack builds OpenCV with GStreamer enabled. To verify GStreamer support,
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run on python shell:
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>>> import cv2
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>>> print (cv2.getBuildInformation())
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GStreamer flags should be enabled in the output.
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>>>
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General configuration for OpenCV 3.3.1 ================================
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Version control: 3.3.1-2-g31ccdfe11
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Platform:
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Timestamp: 2019-02-06T09:45:58Z
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Host: Linux 4.9.140-tegra aarch64
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CMake: 2.8.12.2
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CMake generator: Unix Makefiles
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CMake build tool: /usr/bin/make
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Configuration: Release
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...
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...
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...
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Video I/O:
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DC1394 1.x: NO
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DC1394 2.x: NO
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FFMPEG: YES
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avcodec: YES (ver 57.107.100)
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avformat: YES (ver 57.83.100)
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avutil: YES (ver 55.78.100)
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swscale: YES (ver 4.8.100)
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avresample: NO
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GStreamer:
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base: YES (ver 1.14.1)
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video: YES (ver 1.14.1)
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app: YES (ver 1.14.1)
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riff: YES (ver 1.14.1)
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pbutils: YES (ver 1.14.1)
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OpenNI: NO
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...
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...
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...
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Install path: /usr
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cvconfig.h is in: /tmp/build_opencv/build
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-------------------------------------------------------------------------------
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Compliation:
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Each sample directory contains a makefile to build the respective application.
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The command is:
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cd opencv-sample-apps/[SAMPLE_DIR]
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make
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Example:
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$ cd opencv-sample-apps/opencv_camera
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$ make
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-------------------------------------------------------------------------------
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Execution:
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To run each sample:
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- opencv_camera:
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$ ./opencv_nvgstcam [--Options]
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--h help : Use case help
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--width : capture width
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--height : capture height
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--fps : Frames per second
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Example:
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$ ./opencv_nvgstcam --width=1920 --height=1080 --fps=30
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- opencv_decoder:
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$ ./opencv_nvgstdec [--Options]
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--help -h : Use case help
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--file-path : Absolute path of file to be decoded
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--show-fps : Display number of frames decoded per second
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from GStreamer pipeline
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Example:
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$ ./opencv_nvgstdec --file-path=[_FILEPATH_]
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-opencv_encoder
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$ ./opencv_nvgstenc [--Options]
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--h help : Use case help
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--width : capture width
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--height : capture height
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--fps : Frames per second
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--filename : Target H264 encoded filename
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--time : Duration for capture in seconds
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Example:
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$ ./opencv_nvgstenc --width=1920 --height=1080 --fps=30 --time=60
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--filename= test_h264_1080p_30fps.mp4
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