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• Using ffserver to stream older IP cam MJPEG to RTSP

  26 mai 2016, par tmar89

  I have an older Sony IP camera that has an MJPEG stream. I need to connect this to an NVR that only takes ONVIP or RTSP and I’m trying to use ffserver and ffmpeg to convert the MJPEG stream to RTSP but it’s not working. Any have some idea of what I may be doing wrong ? Saw an error in the attempted playback about an unsupported Protocol.
  Here is my ffserver config :

  Port 8090
  
  RTSPPort 5544
  
  BindAddress 0.0.0.0
  
  RTSPBindAddress 0.0.0.0
  
  MaxClients 100
  
  MaxBandwidth 10000
  
  
  
  <feed>
  
  File /tmp/feed27.ffm
  
  FileMaxSize 5M
  
  ACL allow 127.0.0.1
  
  </feed>
  
  
  
  <stream>
  
  Format rtp
  
  Feed feed27.ffm
  
  NoAudio
  
  VideoCodec mjpeg
  
  VideoFrameRate 30
  
  VideoSize 736x480
  
  </stream>

  And here is the ffmpeg command I am using :

  [tm@tele ffserver-rtsp]# ffmpeg -f mjpeg -r 30 -s 736x480 -i http://[CAMIP]/image http://localhost:8090/feed27.ffm
  
      FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
  
        built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6)
  
        configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
  
        libavutil     50.15. 1 / 50.15. 1
  
        libavcodec    52.72. 2 / 52.72. 2
  
        libavformat   52.64. 2 / 52.64. 2
  
        libavdevice   52. 2. 0 / 52. 2. 0
  
        libavfilter    1.19. 0 /  1.19. 0
  
        libswscale     0.11. 0 /  0.11. 0
  
        libpostproc   51. 2. 0 / 51. 2. 0
  
      [mjpeg @ 0x1ece670]Estimating duration from bitrate, this may be inaccurate
  
      Input #0, mjpeg, from 'http://[CAMIP]/image':
  
        Duration: N/A, bitrate: N/A
  
          Stream #0.0: Video: mjpeg, yuvj422p, 736x480, 30 fps, 30 tbr, 1200k tbn, 30 tbc
  
      Output #0, ffm, to 'http://localhost:8090/feed27.ffm':
  
        Metadata:
  
          encoder         : Lavf52.64.2
  
          Stream #0.0: Video: mjpeg, yuvj420p, 736x480, q=2-31, 200 kb/s, 1000k tbn, 30 tbc
  
      Stream mapping:
  
        Stream #0.0 -> #0.0
  
      Press [q] to stop encoding
  
      [mjpeg @ 0x222d110]rc buffer underflow
  
      frame=  640 fps= 17 q=31.4 size=   12884kB time=21.33 bitrate=4947.5kbits/s

  When I use VLC to open the stream, it cannot be found :

  Your input can't be opened:
  
      VLC is unable to open the MRL 'rtsp://localhost:5544/stream27.mpg'. Check the log for details.

  Finally, using ffplay on the same machine :

  [tm@tele tmp]# ffplay rtsp://localhost:5544/stream27.sdp
  
  FFplay version 0.6.5, Copyright (c) 2003-2010 the FFmpeg developers
  
    built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6)
  
    configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
  
    libavutil     50.15. 1 / 50.15. 1
  
    libavcodec    52.72. 2 / 52.72. 2
  
    libavformat   52.64. 2 / 52.64. 2
  
    libavdevice   52. 2. 0 / 52. 2. 0
  
    libavfilter    1.19. 0 /  1.19. 0
  
    libswscale     0.11. 0 /  0.11. 0
  
    libpostproc   51. 2. 0 / 51. 2. 0
  
  ALSA lib pulse.c:229:(pulse_connect) PulseAudio: Unable to connect: Connection refused
  
  
  
  rtsp://localhost:5544/stream27.sdp: Protocol not supported

  And here was the log from ffserver :

  127.0.0.1:5000 - - "PLAY stream27.mpg/streamid=0 RTP/UDP"
  
  [rtp @ 0x721dc0]Unsupported codec 8
  
  127.0.0.1:0 - - "PLAY stream27.mpg/streamid=0 RTP/TCP"
  
  [rtp @ 0x728cb0]Unsupported codec 8
  
  127.0.0.1 - - [SETUP] "rtsp://localhost:5544/stream27.mpg/streamid=0 RTSP/1.0" 200 641

• Windows video player cannot play cropped video from ffmpeg

  28 juillet 2019, par Chen Clarence

  I am trying to crop video with ffmpeg, I have encountered three problems.
  First, I used the following code to crop a 1080p video.

  ffmpeg -i 1080vid.avi -vf "crop=1920:1080:0:0" -c:v libx264 -crf 1 -c:a copy output.mp4

  However, in the compression rate argument, it only works if I set -crf to a positive value. If I set it to 0, then the output video cannot be played by my Windows 10 video player. However, since I am pursuing a lossless conversion, this is problematic. The output mp4 is smaller than 5% of the original size.

  The original goal was to cut a 1080*15360 video into 8 1080p videos. However, using the following code, I get unplayable output after playing with all the settings.

  ffmpeg -i sample.avi -vf "crop=1920:1080:0:0" -c:v libx264 -crf 1 -c:a copy output.mp4

  The input sample.avi is a lossless avi with bitrate larger than 1GB/s, and the output is a 70kb unplayable file. When opened, a pop up window displays :

  Choose something else to play. This item is in a format we don't support.
  
  0xc00d36b4

  The following is the command line output.

  ffmpeg version N-94396-g47b6ca0b02 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.1.1 (GCC) 20190716
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  
    libavutil      56. 32.100 / 56. 32.100
  
    libavcodec     58. 55.100 / 58. 55.100
  
    libavformat    58. 30.100 / 58. 30.100
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 58.100 /  7. 58.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  Input #0, avi, from 'sample.avi':
  
    Metadata:
  
      date            : 2019-07-26T07:09:04.185811
  
    Duration: 00:00:03.00, start: 0.000000, bitrate: 11932176 kb/s
  
      Stream #0:0: Video: rawvideo, bgr24, 15360x1080, 12066071 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 29.97 tbc
  
  File 'output.mp4' already exists. Overwrite ? [y/N] y
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 000002a4a910b900] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
  
  [libx264 @ 000002a4a910b900] profile High 4:4:4 Predictive, level 6.0, 4:4:4, 8-bit
  
  [libx264 @ 000002a4a910b900] 264 - core 157 r2970 5493be8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      date            : 2019-07-26T07:09:04.185811
  
      encoder         : Lavf58.30.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 15360x1080, q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc
  
      Metadata:
  
        encoder         : Lavc58.55.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  frame=   90 fps=8.0 q=-1.0 Lsize=      65kB time=00:00:02.90 bitrate= 183.7kbits/s speed=0.258x
  
  video:63kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.042484%
  
  [libx264 @ 000002a4a910b900] frame I:1     Avg QP: 0.35  size: 22252
  
  [libx264 @ 000002a4a910b900] frame P:23    Avg QP: 0.09  size:   476
  
  [libx264 @ 000002a4a910b900] frame B:66    Avg QP: 0.00  size:   467
  
  [libx264 @ 000002a4a910b900] consecutive B-frames:  2.2%  0.0%  0.0% 97.8%
  
  [libx264 @ 000002a4a910b900] mb I  I16..4: 92.1%  6.5%  1.5%
  
  [libx264 @ 000002a4a910b900] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip:100.0%
  
  [libx264 @ 000002a4a910b900] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.0%  0.0%  0.0%  direct: 0.0%  skip:100.0%
  
  [libx264 @ 000002a4a910b900] 8x8 transform intra:6.5% inter:0.0%
  
  [libx264 @ 000002a4a910b900] coded y,u,v intra: 0.4% 0.0% 0.0% inter: 0.0% 0.0% 0.0%
  
  [libx264 @ 000002a4a910b900] i16 v,h,dc,p: 96%  2%  2%  0%
  
  [libx264 @ 000002a4a910b900] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 93%  1%  7%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 000002a4a910b900] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 42% 25% 31%  0%  0%  0%  0%  0%  0%
  
  [libx264 @ 000002a4a910b900] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 000002a4a910b900] kb/s:170.49

• How to resize an animated webp？

  23 mai 2023, par shsf

  I want to be able to change the size of a dynamic webp.
Sample picture address : https://postimg.cc/2qpx5bQm
I found this website to do just that : https://ezgif.com/resize

  


  So how can I implement something similar in my own program ?
I tried using ImageMagick7 or ffmpeg5, but failed.

  


  environment :

  


  [developer@Dev_Payment_229 ~]$ cat /etc/redhat-release

  


  CentOS Linux release 7.8.2003 (Core)

  


  1. tried ffmpeg :

  


  [developer@Dev_Payment_229 ~]$ /opt/ffmpeg-5/ffmpeg -i b.webp -vf "scale=320:-1" b_320.webp
ffmpeg version 5.1.1-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2022 the FFmpeg developers
  built with gcc 8 (Debian 8.3.0-6)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
  libavutil      57. 28.100 / 57. 28.100
  libavcodec     59. 37.100 / 59. 37.100
  libavformat    59. 27.100 / 59. 27.100
  libavdevice    59.  7.100 / 59.  7.100
  libavfilter     8. 44.100 /  8. 44.100
  libswscale      6.  7.100 /  6.  7.100
  libswresample   4.  7.100 /  4.  7.100
  libpostproc    56.  6.100 / 56.  6.100
[webp @ 0x7686f40] skipping unsupported chunk: ANIM
[webp @ 0x7686f40] skipping unsupported chunk: ANMF
    Last message repeated 10 times
[webp @ 0x7686f40] image data not found
[webp_pipe @ 0x7685700] Could not find codec parameters for stream 0 (Video: webp, none): unspecified size
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, webp_pipe, from 'b.webp':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: webp, none, 25 fps, 25 tbr, 25 tbn
Stream mapping:
  Stream #0:0 -> #0:0 (webp (native) -> webp (libwebp_anim))
Press [q] to stop, [?] for help
[webp @ 0x7697600] skipping unsupported chunk: ANIM
[webp @ 0x7697600] skipping unsupported chunk: ANMF
    Last message repeated 10 times
[webp @ 0x7697600] image data not found
Error while decoding stream #0:0: Invalid data found when processing input
Cannot determine format of input stream 0:0 after EOF
Error marking filters as finished
Conversion failed!


  


  It seems that ffmpeg cannot recognize this dynamic webp image.

  


  2. tried ImageMagick7

  


  install :

  


   yum -y install libwebp-devel libwebp-tools
[root@Dev_FTP_241 developer]# yum list installed | grep webp
libwebp.x86_64                         0.3.0-11.el7               @updates
libwebp-devel.x86_64                   0.3.0-11.el7               @updates
libwebp-tools.x86_64                   0.3.0-11.el7               @updates



  


  source code: https://github.com/ImageMagick/ImageMagick/archive/refs/tags/7.1.1-0.tar.gz
tar -xvf ImageMagick-7.1.1-0.tar.gz
./configure --with-webp --prefix=/usr/local/imagemagick
make
make install


  


  single webp can be resized :

  


  [root@Dev_FTP_241 developer]#  /usr/local/imagemagick/bin/convert -resize 480  simple.webp simple_480.webp
Decoded /tmp/magick-LNPdXgk2zDpiuU6Qv9CpDups3560EATh. Dimensions: 2160 x 608. Now saving...
Saved file /tmp/magick-Q8JHRZZOXdp1r1x187eftzsFlw8AqAuo


  


  but animated webp failed :

  


  [root@Dev_FTP_241 developer]#  /usr/local/imagemagick/bin/convert -resize 480  b.webp b_480.webp
Error! Decoding of an animated WebP file is not supported.
       Use webpmux to extract the individual frames or
       vwebp to view this image.
Decoding of /tmp/magick-jMiy7ytmAnBzpS8UpafCQ5B44BjDTUSD failed.
Status: 4 (UNSUPPORTED_FEATURE)
convert: delegate failed `'dwebp' -pam '%i' -o '%o'' @ error/delegate.c/InvokeDelegate/1924.
convert: unable to open file '/tmp/magick-D-NMEGWU_a0IypZWwTpYiWIE61nteoig': No such file or directory @ error/constitute.c/ReadImage/786.
convert: no images defined `b_480.webp' @ error/convert.c/ConvertImageCommand/3342.