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  • Why do I get "method DESCRIBE failed : 401 Unauthorized "

    28 juillet 2021, par TheOliveTurtle

    Let me explain my problem, I am trying to access different channels in a DVR system.
I have successfully gotten access to a single camera (channel 1) by using opencv as such :

    


    public_link = 'rtsp://test:test@192.168.1.48/cam/realmonitor'

cap = cv2.VideoCapture(public_link, cv2.CAP_FFMPEG)


    


    The problem is I can't access the other channels with these parameters :

    


    public_link = 'rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0'

cap = cv2.VideoCapture(public_link, cv2.CAP_FFMPEG)


    


    I've tried the following links :

    


      

    • rtsp ://test:test@192.168.1.48/cam/realmonitor ?channel=3&subtype=0

      • 


    • rtsp ://test:test@192.168.1.48/cam/realmonitor ?channel=3&subtype=1

      • 


    • rtsp ://192.168.1.48/cam/realmonitor ?channel=3&subtype=0&authbasic=dGVzdDp0ZXN0

      • 


    


    I get this following error :

    


    


    [rtsp @ 00000201ce582cc0] method DESCRIBE failed : 401 Unauthorized

    


    


    I've noticed that even if I test with this URL (rtsp ://test:test@192.168.1.48/blablabla) it works just fine ! (ONLY Channel #1) but when I insert the symbol '=' into the URL string, I get the above error.

    


    It's really frustrating, Any sort of help would be much appreciated.

    


    PS : the user 'test' has admin privileges in the system.

    


    I've tried to run the test with plain ffmpeg command like such :
ffmpeg -loglevel debug -i "rtsp://test:test@192.168.1.48/cam/monitor?channel=3&subtype=0" ./folder/output.m3u8

    


    I get the following error :

    


    PS C:\Users\cjhou> ffmpeg -loglevel debug -i "rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0" .\folder\output.m3u8 
ffmpeg version 4.4-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
libavutil      56. 70.100 / 56. 70.100
libavcodec     58.134.100 / 58.134.100
libavformat    58. 76.100 / 58. 76.100
libavdevice    58. 13.100 / 58. 13.100
libavfilter     7.110.100 /  7.110.100
libswscale      5.  9.100 /  5.  9.100
libswresample   3.  9.100 /  3.  9.100
libpostproc    55.  9.100 / 55.  9.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'.
Reading option '-i' ... matched as input url with argument 'rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0'.
Reading option '.\folder\output.m3u8' ... matched as output url. 
Finished splitting the commandline. 
Parsing a group of options: global. 
Applying option loglevel (set logging level) with argument debug. 
Successfully parsed a group of options. 
Parsing a group of options: input url rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0.
Successfully parsed a group of options.
Opening an input file: rtsp://houssem:152400@192.168.1.48/cam/realmonitor?channel=3&subtype=0.
[tcp @ 000001882b592240] No default whitelist set 
[tcp @ 000001882b592240] Original list of addresses: 
[tcp @ 000001882b592240] Address 192.168.1.48 port 554 
[tcp @ 000001882b592240] Interleaved list of addresses: 
[tcp @ 000001882b592240] Address 192.168.1.48 port 554 [tcp @ 000001882b592240] Starting connection attempt to 192.168.1.48 port 554  
[tcp @ 000001882b592240] Successfully connected to 192.168.1.48 port 554 
[rtsp @ 000001882b58f080] method DESCRIBE failed: 401 Unauthorized 
[rtsp @ 000001882b58f080] Cseq: 3  Server: Rtsp Server 960*576*30*4096

WWW-Authenticate: Digest realm="Surveillance Server", nonce="44976150"

rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0: Server returned 401 Unauthorized (authorization failed)


    


    With this command ffplay "rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0", I get this output :

    


    PS C:\Users\cjhou> ffplay "rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0"
ffplay version 4.4-full_build-www.gyan.dev Copyright (c) 2003-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang --enable-vulkan --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
[rtsp @ 000001d413d2f640] method DESCRIBE failed: 401 Unauthorized
rtsp://test:test@192.168.1.48/cam/realmonitor?channel=3&subtype=0: Server returned 401 Unauthorized (authorization failed)
    nan    :  0.000 fd=   0 aq=    0KB vq=    0KB sq=    0B f=0/0


    


    By the way, I am using this device :

    


      

    • Device Name : Digital Video Record

      • 


    • Model Number : 16-CHANNEL

      • 


    • Software Version : XVR_HI3521A_16_v6.1.52.1

      • 


    • Date : Dec 19 2016 14:36:39

      • 


    


    Hope this helps !

    


  • FFmpeg make : *** [libavdevice/avfoundation.o] Error 1

    29 décembre 2014, par Althen Lim Zi Xuan

    I’m very new (1 weeks ago) to Mac OS environment and I have to create a iPhone apps using FFmpeg (I’m new to this, too !). This is what I’ve done to import FFmpeg library.

    First, here’s the environment :

    OS: Mac OS X 10.7.5
    
Xcode: 4.5
    
FFmpeg: 2.5 (Latest update of 04/12/2014)

    So I download from FFmpeg.org using command :

    git clone git://source.ffmpeg.org/ffmpeg.git ~/ffmpeg

    and create the folder in it :

    cd ffmpeg
    
mkdir i386
    
mkdir armv7
    
mkdir armv7s
    
mkdir -p universal/lib

    I download the gas-preprocessor.pl from yuvi and copied into /usr/bin and /usr/local/bin with READ/WRITE access for all.

    However, I do encounter the error as title mentions during the making process of armv7 and armv7s which appear like this :

    make: *** [libavdevice/avfoundation.o] Error 1

    Can anyone teach me how to deal with it ? Here’s my configuration.

    For i386 : (Compilation success and I saw files and folder in i386 folder)

    ./configure --cc="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc" --as="/usr/local/bin/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-gcc-4.2" --sysroot="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk" --target-os=darwin --arch=i386 --cpu=i386 --extra-cflags="-arch i386" --extra-ldflags="-arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator6.0.sdk"--prefix=compiled/i386 --enable-cross-compile --enable-nonfree --enable-gpl --disable-armv5te --disable-swscale-alpha --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-asm --disable-debug

    For armv7 :

    ./configure --cc=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc --as="/usr/local/bin/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-gcc-4.2" --sysroot=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk --target-os=darwin --arch=arm --cpu=cortex-a8 --extra-cflags="-arch armv7" --extra-ldflags="-arch armv7 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk" --prefix=compiled/armv7 --enable-cross-compile --enable-nonfree --enable-gpl --disable-armv5te --disable-swscale-alpha --disable-doc --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --disable-asm --disable-debug

    and for armv7s :

    ./configure --prefix=armv7s --as="/usr/local/bin/gas-preprocessor.pl /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/llvm-gcc-4.2/bin/arm-apple-darwin10-llvm-gcc-4.2" --disable-ffmpeg --disable-ffplay --disable-ffprobe --disable-ffserver --enable-avresample --enable-cross-compile --sysroot="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk" --target-os=darwin --cc="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/gcc" --extra-cflags="-arch armv7s -mfpu=neon -miphoneos-version-min=6.0" --extra-ldflags="-arch armv7s -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS6.0.sdk -miphoneos-version-min=6.0" --arch=arm --cpu=cortex-a9 --enable-pic

    If any necessary information needed please do inform me and I will upload it A.S.A.P. Any help, comment, guideline are highly appreciated. Thanks !

    Updated :
    This is the error I received during the making process. I have no idea but hope that it helps in configuring out problem :

    CC  libavdevice/alldevices.o
    
CC  libavdevice/avdevice.o
    
CC  libavdevice/avfoundation.o
    
libavdevice/avfoundation.m:44: error: initializer element is not constant
    
libavdevice/avfoundation.m:44: error: (near initialization for ‘avf_time_base_q.den’)
    
libavdevice/avfoundation.m:74:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m: In function ‘add_video_device’:
    
libavdevice/avfoundation.m:300: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:355: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:364: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m: In function ‘add_audio_device’:
    
libavdevice/avfoundation.m:407: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m: In function ‘get_video_config’:
    
libavdevice/avfoundation.m:432: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:442: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m: In function ‘get_audio_config’:
    
libavdevice/avfoundation.m:470: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:480: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m: In function ‘avf_read_header’:
    
libavdevice/avfoundation.m:534: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:539:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m:546: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:554:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m:575: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:596:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m:619:5: warning: "__MAC_OS_X_VERSION_MIN_REQUIRED" is not defined
    
libavdevice/avfoundation.m: In function ‘avf_read_packet’:
    
libavdevice/avfoundation.m:724: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:739: warning: ISO C90 forbids mixed declarations and code
    
libavdevice/avfoundation.m:776: warning: ISO C90 forbids mixed declarations and code
    
make: *** [libavdevice/avfoundation.o] Error 1

  • SRT : No Room to Store Incoming Packets when we stream SRT streams through VLC

    10 février, par Shankar

    Hope all you are doing well.

    


    Actually i was trying to stream a media file using VLC by SRT protocol. For which, srt-live-transmit is used as converter in between SRT Listener and VLC UDP streams. srt-live-transmit used to convert udp to srt streams(mpegts). But when i tried to do that, after few seconds, i got error in srt-live-transmit terminal that :
No room to store incoming packet :

    


    What should be the reason for this error ? And if anyone know anything about this problem, please share info. It would be helpful.
Thank you.

    


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