NVIDIA Jetson AGX设备gst-play/gst-launch无法播放RTSP流求助

问题概述 #

在NVIDIA Jetson AGX设备上使用gst-play-1.0和gst-launch-1.0播放RTSP流时均失败，但相同RTSP流在搭载Ubuntu 20.04、GStreamer 1.16.3的x86电脑上可正常播放，说明流本身无问题。

RTSP流常用URL格式：

rtsp://192.168.1.xxx:8554/main.264
rtsp://username:password@192.168.1.xxx:554

已尝试的命令及现象 #

1. 使用gst-play-1.0 #

命令：

$ gst-play-1.0 rtsp://192.168.1.xxx:8554/main.264

终端卡住输出：

Press 'k' to see a list of keyboard shortcuts.
Now playing rtsp://192.168.1.xxx:8554/main.264
Pipeline is live.
Opening in BLOCKING MODE 
NvMMLiteOpen : Block : BlockType = 261 
NVMEDIA: Reading vendor.tegra.display-size : status: 6 
NvMMLiteBlockCreate : Block : BlockType = 261 
Prerolled.

2. 使用gst-launch-1.0初始尝试 #

命令：

$ gst-launch-1.0 rtspsrc location=rtsp://192.168.1.xxx:8554/main.264 latency=0 buffer-mode=auto ! queue ! rtph264depay ! h264parse ! avdec_h264 ! videoconvert ! videoscale ! video/x-raw,width=1920,height=1080 ! autovideosink

终端卡住输出：

Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtsp://192.168.1.xxx:8554/main.264
Progress: (open) Retrieving server options
Progress: (open) Retrieving media info
Progress: (request) SETUP stream 0
Progress: (open) Opened Stream
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Progress: (request) Sending PLAY request
Progress: (request) Sending PLAY request
Progress: (request) Sent PLAY request

按Ctrl+C后的输出：

^Chandling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 0:00:02.188911578
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

设备信息 #

• L4T 32.6.1 [JetPack 4.6]
• Ubuntu 18.04.6 LTS
• Kernel Version: 4.9.253-tegra
• GStreamer 1.14.5
• CUDA 10.2.300
• OpenCV 4.1.1（无CUDA支持）
• CUDNN 8.2.1.32
• TensorRT 8.0.1.6

补充测试结果 #

尝试硬件加速命令 #

使用Jetson专用硬件加速元素的命令：

gst-launch-1.0 rtspsrc location=rtsp://username:password@192.168.1.xxx:554 latency=500 ! queue ! rtph264depay ! h264parse ! nvv4l2decoder ! nvvidconv ! 'video/x-raw(memory:NVMM),width=1920,height=1080' ! nvvidconv ! autovideosink

终端输出：

Setting pipeline to PAUSED ...
Opening in BLOCKING MODE 
Pipeline is live and does not need PREROLL ...
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtsp://username:password@192.168.1.xxx:554
Progress: (open) Retrieving server options
Progress: (open) Retrieving media info
Progress: (request) SETUP stream 0
Progress: (open) Opened Stream
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Progress: (request) Sending PLAY request
Progress: (request) Sending PLAY request
Progress: (request) Sent PLAY request
NvMMLiteOpen : Block : BlockType = 261 
NVMEDIA: Reading vendor.tegra.display-size : status: 6 
NvMMLiteBlockCreate : Block : BlockType = 261 

(gst-launch-1.0:14920): GStreamer-CRITICAL **: 21:59:35.771: gst_mini_object_unref: assertion 'mini_object != NULL' failed
NvMMLiteOpen : Block : BlockType = 261 
NVMEDIA: Reading vendor.tegra.display-size : status: 6 
NvMMLiteBlockCreate : Block : BlockType = 261 

使用gst-discoverer-1.0检测流 #

命令：

gst-discoverer-1.0 rtsp://username:password@192.168.1.xxx:554

输出：

Analyzing rtsp://username:password@192.168.1.xxx:554
Opening in BLOCKING MODE 
NvMMLiteOpen : Block : BlockType = 261 
NVMEDIA: Reading vendor.tegra.display-size : status: 6 
NvMMLiteBlockCreate : Block : BlockType = 261 
Done discovering rtsp://username:password@192.168.1.xxx:554

Topology:
  unknown: application/x-rtp
    video: H.264 (Main Profile)

Properties:
  Duration: 99:99:99.999999999
  Seekable: no
  Live: yes
  Tags: 
      video codec: H.264 (Main Profile)

解决思路 #

1. 替换为Jetson专用渲染器
   用nveglglessink替代autovideosink，这是JetPack原生支持的硬件加速显示元素，能避免显示适配问题：

   gst-launch-1.0 rtspsrc location=rtsp://username:password@192.168.1.xxx:554 latency=1000 ! queue ! rtph264depay ! h264parse ! nvv4l2decoder ! nvvidconv ! nveglglessink sync=false
   

2. 修复显示环境变量
   针对NVMEDIA: Reading vendor.tegra.display-size : status: 6警告，设置显示环境变量：

   export DISPLAY=:0
   export GST_GL_WINDOW=egl
   

   再重新运行播放命令。

3. 优化RTSP流参数

   • 调高latency值到1000-2000ms，适配网络延迟
   • 启用RTSP重传机制，添加do-retransmission=true参数：

     gst-launch-1.0 rtspsrc location=rtsp://username:password@192.168.1.xxx:554 latency=2000 do-retransmission=true ! queue ! rtph264depay ! h264parse ! nvv4l2decoder ! nvvidconv ! nveglglessink
     

4. 验证硬件解码功能
   播放本地H264文件，确认nvv4l2decoder等硬件插件正常工作：

   gst-launch-1.0 filesrc location=test.h264 ! h264parse ! nvv4l2decoder ! nveglglessink
   

   若本地播放正常，说明问题集中在RTSP流的网络传输环节。

5. 更新GStreamer插件
   安装缺失的插件包，确保RTSP和H264处理组件完整：

   sudo apt-get install gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav
   

内容的提问来源于stack exchange，提问作者9friday