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• Two nearly identical ffmpeg commands, one works, the other freezes up

  28 septembre 2015, par dylanjha

  In both of these examples, I’m passing two inputs to ffmpeg applying a filter to the first input, and outputting it all to a .mp4.

  Example 1

  ffmpeg -y -threads 4 -ss 23.536 -t 44.854 -i .tmp/processing/vid-one.webm -ss 13.516 -t 54.874 -i .tmp/processing/vid-two.webm -filter_complex "[0]scale=320:-1,pad=2*iw:2*ih:0:120[left];[1]scale=320:-1[right];[left][right]overlay=main_w/2:120,scale=640:480" -shortest .tmp/processing/temp-23536-68390.mp4

  Example 2

  ffmpeg -y -threads 4 -ss 68.39 -t 3.646 -i .tmp/processing/vid-one.webm -ss 58.37 -t 13.666 -i .tmp/processing/vid-two.webm -filter_complex "[0]scale=320:-1,pad=2*iw:2*ih:0:120[left];[1]scale=320:-1[right];[left][right]overlay=main_w/2:120,scale=640:480" -shortest .tmp/processing/temp-68390-72036.mp4

  In the logging output I can get an idea of where it gets hung up.

  Output Example 1

  the output gets to this frame= line and it updates the output like this

  ffmpeg version 2.7.2 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --enable-opencl --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
  
    libavutil      54. 27.100 / 54. 27.100
  
    libavcodec     56. 41.100 / 56. 41.100
  
    libavformat    56. 36.100 / 56. 36.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 16.101 /  5. 16.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.100 /  1.  2.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, matroska,webm, from '.tmp/processing/vid-one.webm':
  
    Metadata:
  
      encoder         : libwebm-0.2.1.0
  
      creation_time   : 2015-09-27 18:54:09
  
    Duration: 00:01:10.35, start: 0.000000, bitrate: 45 kb/s
  
      Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
  
      Stream #0:1(eng): Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 1k tbr, 1k tbn, 1k tbc (default)
  
  Input #1, matroska,webm, from '.tmp/processing/vid-two.webm':
  
    Metadata:
  
      encoder         : libwebm-0.2.1.0
  
      creation_time   : 2015-09-27 18:54:19
  
    Duration: 00:00:59.58, start: 0.000000, bitrate: 356 kb/s
  
      Stream #1:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
  
      Stream #1:1(eng): Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 1k tbr, 1k tbn, 1k tbc (default)
  
  [libx264 @ 0x7faa59843e00] using SAR=1/1
  
  [libx264 @ 0x7faa59843e00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x7faa59843e00] profile High, level 5.2
  
  [libx264 @ 0x7faa59843e00] 264 - core 144 r2533 c8a773e - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=-2 threads=6 lookahead_threads=1 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=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to '.tmp/processing/temp-23536-68390.mp4':
  
    Metadata:
  
      encoder         : Lavf56.36.100
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 1k fps, 16k tbn, 1k tbc (default)
  
      Metadata:
  
        encoder         : Lavc56.41.100 libx264
  
      Stream #0:1(eng): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000 Hz, mono, s16, 128 kb/s (default)
  
      Metadata:
  
        encoder         : Lavc56.41.100 libvo_aacenc
  
  Stream mapping:
  
    Stream #0:1 (vp8) -> scale (graph 0)
  
    Stream #1:1 (vp8) -> scale (graph 0)
  
    scale (graph 0) -> Stream #0:0 (libx264)
  
    Stream #0:0 -> #0:1 (opus (native) -> aac (libvo_aacenc))
  
  Press [q] to stop, [?] for help
  
  Input stream #0:1 frame changed from size:640x480 fmt:yuv420p to size:320x240 fmt:yuv420p
  
  Input stream #1:1 frame changed from size:640x480 fmt:yuv420p to size:1016x846 fmt:yuv420p
  
  frame=13321 fps=268 q=33.0 size=    1321kB time=00:00:41.85 bitrate= 258.5kbits/s dup=13frame=25895 fps=258 q=33.0 size=    2268kB time=00:00:44.81 bitrate= 414.5kbits/s dup=25frame=35230 fps=244 q=33.0 size=    2936kB time=00:00:44.81 bitrate= 536.6kbits/s dup=35frame=41866 fps=231 q=33.0 size=    3552kB time=00:00:44.81 bitrate= 649.4kbits/s dup=41Past duration 0.999992 too large
  
  frame=41868 fps=231 q=-1.0 Lsize=    4089kB time=00:00:44.85 bitrate= 746.8kbits/s dup=41862 drop=20    
  
  video:3108kB audio:479kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 13.986680%
  
  [libx264 @ 0x7faa59843e00] frame I:168   Avg QP:18.70  size: 12936
  
  [libx264 @ 0x7faa59843e00] frame P:10552 Avg QP:14.49  size:    37
  
  [libx264 @ 0x7faa59843e00] frame B:31148 Avg QP:17.67  size:    20
  
  [libx264 @ 0x7faa59843e00] consecutive B-frames:  0.8%  0.0%  0.0% 99.2%
  
  [libx264 @ 0x7faa59843e00] mb I  I16..4: 40.0% 39.7% 20.3%
  
  [libx264 @ 0x7faa59843e00] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  0.2%  0.0%  0.0%  0.0%  0.0%    skip:99.7%
  
  [libx264 @ 0x7faa59843e00] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.0%  0.0%  0.0%  direct: 0.0%  skip:100.0%  L0: 7.4% L1:92.6% BI: 0.0%
  
  [libx264 @ 0x7faa59843e00] 8x8 transform intra:39.8% inter:54.0%
  
  [libx264 @ 0x7faa59843e00] coded y,uvDC,uvAC intra: 31.6% 26.7% 16.9% inter: 0.0% 0.1% 0.0%
  
  [libx264 @ 0x7faa59843e00] i16 v,h,dc,p: 68% 22%  9%  1%
  
  [libx264 @ 0x7faa59843e00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 45% 14%  1%  3%  5%  2%  5%  3%
  
  [libx264 @ 0x7faa59843e00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 47% 10%  1%  2%  2%  3%  2%  3%
  
  [libx264 @ 0x7faa59843e00] i8c dc,h,v,p: 73% 13% 12%  2%
  
  [libx264 @ 0x7faa59843e00] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x7faa59843e00] ref P L0: 99.3%  0.4%  0.1%  0.2%
  
  [libx264 @ 0x7faa59843e00] ref B L0: 68.7% 31.3%
  
  [libx264 @ 0x7faa59843e00] ref B L1: 99.3%  0.7%
  
  [libx264 @ 0x7faa59843e00] kb/s:608.06

  Output Example 2

  When it gets to the frame= line, it hangs

  ffmpeg version 2.7.2 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --enable-opencl --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
  
    libavutil      54. 27.100 / 54. 27.100
  
    libavcodec     56. 41.100 / 56. 41.100
  
    libavformat    56. 36.100 / 56. 36.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 16.101 /  5. 16.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.100 /  1.  2.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, matroska,webm, from '.tmp/processing/vid-one.webm':
  
    Metadata:
  
      encoder         : libwebm-0.2.1.0
  
      creation_time   : 2015-09-27 18:54:09
  
    Duration: 00:01:10.35, start: 0.000000, bitrate: 45 kb/s
  
      Stream #0:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
  
      Stream #0:1(eng): Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 1k tbr, 1k tbn, 1k tbc (default)
  
  Input #1, matroska,webm, from '.tmp/processing/vid-two.webm':
  
    Metadata:
  
      encoder         : libwebm-0.2.1.0
  
      creation_time   : 2015-09-27 18:54:19
  
    Duration: 00:00:59.58, start: 0.000000, bitrate: 356 kb/s
  
      Stream #1:0(eng): Audio: opus, 48000 Hz, mono, fltp (default)
  
      Stream #1:1(eng): Video: vp8, yuv420p, 640x480, SAR 1:1 DAR 4:3, 1k tbr, 1k tbn, 1k tbc (default)
  
  [libx264 @ 0x7fdb4a802600] using SAR=1/1
  
  [libx264 @ 0x7fdb4a802600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
  [libx264 @ 0x7fdb4a802600] profile High, level 5.2
  
  [libx264 @ 0x7fdb4a802600] 264 - core 144 r2533 c8a773e - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=-2 threads=6 lookahead_threads=1 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=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to '.tmp/processing/temp-68390-72036.mp4':
  
    Metadata:
  
      encoder         : Lavf56.36.100
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 1k fps, 16k tbn, 1k tbc (default)
  
      Metadata:
  
        encoder         : Lavc56.41.100 libx264
  
      Stream #0:1(eng): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000 Hz, mono, s16, 128 kb/s (default)
  
      Metadata:
  
        encoder         : Lavc56.41.100 libvo_aacenc
  
  Stream mapping:
  
    Stream #0:1 (vp8) -> scale (graph 0)
  
    Stream #1:1 (vp8) -> scale (graph 0)
  
    scale (graph 0) -> Stream #0:0 (libx264)
  
    Stream #0:0 -> #0:1 (opus (native) -> aac (libvo_aacenc))
  
  Press [q] to stop, [?] for help
  
  Input stream #0:1 frame changed from size:640x480 fmt:yuv420p to size:320x240 fmt:yuv420p
  
  Input stream #1:1 frame changed from size:640x480 fmt:yuv420p to size:1016x846 fmt:yuv420p
  
  frame=    0 fps=0.0 q=0.0 Lsize=      17kB time=00:00:01.97 bitrate=  71.8kbits/s

  version : ffmpeg version 2.7.2

• ffmpeg works but gstreamer does not work for rtsp camera

  11 janvier 2021, par Jinmo Chong

  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:admin@192.168.10.131/1/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:admin@192.168.10.131/1/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: unknown

  


  


  



  But 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:admin@192.168.10.131/1/profile ! fakesink


  


  


  


  Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtsp://admin:admin@192.168.10.131/1/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 !

  


• ffmpeg in PHP : Resizing image works, but getting a 404 when trying to load resized image ?

  13 décembre 2016, par Eric David Sartor

  PHP :

  if ($output = shell_exec("ffmpeg -i localhost/video/tools/poster.png -vf scale=32:32 localhost/video/tools/poster_small.png 2>&1") !== NULL)
  
      echo $output;
  
  
  
  echo "Original:<br /><img src="http://stackoverflow.com/feeds/tag/poster.png" style='max-width: 300px; max-height: 300px' /><br /><br />Resize:<br /><img src="http://stackoverflow.com/feeds/tag/poster_small.png" style='max-width: 300px; max-height: 300px' />";

  So I’m trying to have an image upload form that creates a smaller version of the uploaded image after the upload is verified. All that works fine, and when I run this command with ffmpeg, the $output is 1. That obviously means that it isn’t returning NULL, which means ffmpeg is functioning in theory...but here’s the weird part...

  I’m echoing the images out into the HTML to visually verify if they worked, and what I get (for the resized image) is a 32x32 image container, but the image doesn’t load (404 in the dev console), which to me makes no sense. If the image container is 32x32, that means that the resize must’ve worked because that’s the size I told it to be in the ffmpeg command, but if the page isn’t loading the image, how did it even get the information that the image needed to be 32x32 ? I didn’t set that in the HTML/CSS anywhere...what’s going on here ?

  I’m running this on Windows in a XAMPP server. I’ve installed ffmpeg and verified it is working in the Windows command prompt. All the files are in localhost/video/tools/, other than the ffmpeg files of course, which are in localhost/ffmpeg/.

  A screenshot of the HTML output : http://ericsartor.ca/Capture.PNG