I'm using Nvidia Jetson Tx2 device.
With the following command, I can connect and capture an image with ffmpeg.
$/usr/bin/ffmpeg -y -frames 1 snapshot.png -rtsp_transport tcp -i rtsp://admin:[email protected]/1/profile
ffmpeg version 3.4.8-0ubuntu0.2 Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 7 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)
configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/aarch64-linux-gnu --incdir=/usr/include/aarch64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://admin:[email protected]/1/profile':
Metadata:
title : SDP Descrption
comment : SDP Description
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: h264 (High), yuvj420p(pc, bt709, progressive), 1920x1080, 25 fps, 30 tbr, 90k tbn, 50 tbc
Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
Stream #0:2: Data: none
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> png (native))
Press [q] to stop, [?] for help
[swscaler @ 0x55a8f70c70] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x55a8f70c70] No accelerated colorspace conversion found from yuv420p to rgb24.
Output #0, image2, to 'snapshot.png':
Metadata:
title : SDP Descrption
comment : SDP Description
encoder : Lavf57.83.100
Stream #0:0: Video: png, rgb24, 1920x1080, q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc
Metadata:
encoder : Lavc57.107.100 png
frame= 1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.03 bitrate=N/A dup=1 drop=1 speed=0.066x
video:1982kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknownBut with gstreamer, (I'm using version 1.14.5) I am not able to access the rtsp feed.
$gst-launch-1.0 uridecodebin uri=rtsp://admin:[email protected]/1/profile ! fakesink
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtsp://admin:[email protected]/1/profile
Progress: (open) Retrieving server options
Progress: (open) Retrieving media info
Progress: (request) SETUP stream 0
Progress: (request) SETUP stream 1
Progress: (request) SETUP stream 2
ERROR: from element /GstPipeline:pipeline0/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source: Could not read from resource.
Additional debug info:
gstrtspsrc.c(5917): gst_rtsp_src_receive_response (): /GstPipeline:pipeline0/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source:
Could not receive message. (Timeout while waiting for server response)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...I have also removed gstreamer-ugly pkg but it still does not work!
ref : https://forums.developer.nvidia.com/t/rtsp-gstreamer-simple-recieve-and-store-in-file/157535/12
Let me know if you can help me! Thanks!
I have solved this by the help of Gstreamer forum.
The problem was that ffmpeg is using tcp when gstreamer is using udp and tcp, and I believe in stream 2, udp is failing. The trick was to put a t to specify tcp
$gst-launch-1.0 rtspsrc location=rtspt://admin:[email protected]/1/profile ! fakesink
Also, you can see the debug lines by gst_debug
$gst-launch-1.0 --gst-debug=rtspsrc:5 uridecodebin uri=rtsp://admin:[email protected]/1/profile ! fakesink
This is the link. http://gstreamer-devel.966125.n4.nabble.com/Ffmpeg-works-but-gstreamer-does-not-work-for-rtsp-camera-tt4696330.html
Also, there is no answer but may helpful in nvidia dev forum https://forums.developer.nvidia.com/t/ffmpeg-works-but-gstreamer-does-not-work-for-rtsp-camera/165193/5