【bug】 jetson上opencv无法录制h264本地视频

在Jetson Orin NX上无法使用opencv直接录制h264/h265视频流(h264格式的视频流才能在浏览器播放)

解决:

软件编码:需要源码编译opencv

1.环境准备

bash 复制代码
pip uninstall opencv-python
sudo apt install build-essential cmake git python3-dev python3-numpy \
libavcodec-dev libavformat-dev libswscale-dev \
libgstreamer-plugins-base1.0-dev \
libgstreamer1.0-dev libgtk-3-dev \
libpng-dev libjpeg-dev libopenexr-dev libtiff-dev libwebp-dev \
libopencv-dev x264 libx264-dev libssl-dev ffmpeg

2.源码编译(大概需要1h)

bash 复制代码
python -m pip install --no-binary opencv-python opencv-python
python 复制代码
import cv2
cap = cv2.VideoCapture("/home/ssa/test_video/20250327_105503.mp4")
while True:
    ret, img= cap.read()
    if not ret:
        print("无法获取帧")
        break

    local_video_path = f"xxxxx.mp4"
    fourcc = cv2.VideoWriter_fourcc(*'avc1')
    out = cv2.VideoWriter(local_video_path, fourcc, self.fps, (img.shape[1], img.shape[0]))
    out.write(img)

avc1是唯一能够软件编码h264的opencv的编码器

硬件编码:需要硬件编码器

1.环境安装

bash 复制代码
sudo apt install -y libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev
sudo apt install -y libgstreamer-plugins-bad1.0-dev gstreamer1.0-plugins-base
sudo apt install -y gstreamer1.0-plugins-good gstreamer1.0-plugins-bad 
sudo apt install -y gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc
sudo apt install -y gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa
sudo apt install -y gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 
sudo apt install -y gstreamer1.0-pulseaudio
sudo apt install -y gtk-doc-tools
sudo apt install -y libeigen3-dev libfmt-dev v4l-utils

2.代码实现

python 复制代码
import cv2

# 视频源(摄像头或文件)
cap = cv2.VideoCapture(0)  # 0表示默认摄像头
# 或从RTSP流读取:
# cap = cv2.VideoCapture("rtsp://xxxxx")

# 获取视频参数
fps = cap.get(cv2.CAP_PROP_FPS)
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))

# 自定义视频文件名
video_filename = "output.mp4"  # 可修改为任意名称
# 也可以通过用户输入来动态设置文件名
# video_filename = input("请输入保存的视频文件名:") + ".mp4"

# GStreamer输出管道(使用NVENC H.264硬件编码)
output_pipeline = (
    f"appsrc ! video/x-raw, format=BGR ! "
    f"videoconvert ! video/x-raw, format=I420 ! "
    f"nvvidconv ! "
    f"nvv4l2h264enc insert-sps-pps=1 preset-level=1 bitrate=4000000 ! "
    f"h264parse ! "
    f"qtmux ! "
    f"filesink location={video_filename} sync=0"
)

# 初始化VideoWriter
out = cv2.VideoWriter(
    output_pipeline, 
    cv2.CAP_GSTREAMER, 
    0, 
    fps, 
    (width, height)
)

if not out.isOpened():
    print("Error: 无法打开输出流")
    exit()

print(f"视频将保存为: {video_filename}")

# 读取并写入视频帧
while cap.isOpened():
    ret, frame = cap.read()
    if not ret:
        break
    out.write(frame)
    cv2.imshow('Frame', frame)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

# 释放资源
cap.release()
out.release()
cv2.destroyAllWindows()
print(f"视频已成功保存为: {video_filename}")    
相关推荐
Sunhen_Qiletian7 小时前
基于OpenCV与Python的身份证号码识别案例详解
人工智能·opencv·计算机视觉
JANGHIGH10 小时前
YOLO系列——Ubuntu20.04下通过conda虚拟环境源码安装opencv-4.10与opencv_contrib-4.10.0
opencv·yolo·conda
AI视觉网奇10 小时前
Python 检测运动模糊 源代码
人工智能·opencv·计算机视觉
给大佬递杯卡布奇诺12 小时前
FFmpeg 基本API avcodec_alloc_context3函数内部调用流程分析
c++·ffmpeg·音视频
Brianna Home14 小时前
从零到一:用Godot打造2D游戏《丛林探险》
算法·游戏·性能优化·游戏引擎·bug·godot·动画
给大佬递杯卡布奇诺15 小时前
FFmpeg 基本API avio_open函数内部调用流程分析
c++·ffmpeg·音视频
Damon小智17 小时前
RedPlayer 视频播放器在 HarmonyOS 应用中的实践
音视频·harmonyos·鸿蒙·小红书·三方库·redplayer
云雾J视界19 小时前
Linux企业级解决方案架构:字节跳动短视频推荐系统全链路实践
linux·云原生·架构·kubernetes·音视频·glusterfs·elk stack
Likeadust21 小时前
新版视频直播点播平台EasyDSS用视频破局,获客转化双提升
大数据·音视频
AI云原生1 天前
云原生系列Bug修复:Docker镜像无法启动的终极解决方案与排查思路
运维·服务器·python·docker·云原生·容器·bug