Recherche avancée

Sur d’autres sites (11295)

• avdevice/decklink_dec : Convert decklink input module to use codecpar

  8 mai 2016, par Felt, Patrick

  avdevice/decklink_dec : Convert decklink input module to use codecpar
  There are still a couple of deprecated calls that I’m not sure what to do with.
  
  They are both related to some logic around AVCodecContext.coded_frame.
  
  I couldn’t find anywhere that really documented what that was, or where it was intended to move to.
  
  I left the warnings on.
  Reviewed-by : Deti Fliegl <deti@fliegl.de>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavdevice/decklink_dec.cpp

• PHP memory issue when executing FFMPEG in CGI module but works from shell in CentOs

  28 mai 2016, par sam rolfe

  I am trying to execute FFMPEG on my VPS server however it is failing due to memory problems. The PHP calls an shell_exec($cmd) on FFMPEG and this throws the memory allocation error. However if I call the exact same FFMPEG command from shell it works.

  Even STRANGER is if I call the php script with the shell_exec($cmd) from shell - then it works.

  I am sorry if I have not phrased this correctly. But I really feel as though this is a memory issue from the PHP being executed in the browser window via the CGI exe - as when it is run from within the shell it is obviously able to maintain the memory level. I am desperate to get this to work and have been researching all week.

  I looked at system("ulimit -a") ;

  core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 1546994 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 16384 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 400 virtual memory (kbytes, -v) 1048576 file locks (-x) unlimited file locks (-x) unlimited

  The PHP is running as a suphp CGI I have set the php.ini memory to 2G, here are the details of things.

  The basic command insude PHP

  $cmd="ffmpeg -hwaccel auto  -i finn.mp4 -y  -pix_fmt yuv410p -s 320x240  -codec:v h264 -c:a copy  -crf 20 -preset slow  0001_finn_test_2.mp4   null >/dev/null 2> ffmpeg_2.log &";

  Output from error log - I can not post the full log as the formatting will not work :

  ffmpeg version N-80079-g4c82cca-vps15452_20160524 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-16)
  
    configuration: --prefix=/usr --extra-version=vps15452_20160524 --enable-shared --enable-static --enable-libx264 --enable-libass --enable-fontconfig --enable-libfreetype --enable-gpl --enable-nonfree --enable-version3 --enable-libmp3lame --enable-libvpx --enable-libspeex --enable-libwebp --enable-libfaac --enable-libtheora --enable-libvorbis
  
    libavutil      55. 24.100 / 55. 24.100
  
    libavcodec     57. 43.100 / 57. 43.100
  
    libavformat    57. 37.100 / 57. 37.100
  
    libavdevice    57.  0.101 / 57.  0.101
  
    libavfilter     6. 46.100 /  6. 46.100
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'finn.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      creation_time   : 2016-01-28 09:16:38
  
    Duration: 00:00:29.93, start: 0.000000, bitrate: 17060 kb/s
  
      Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 16991 kb/s, 30.01 fps, 30 tbr, 90k tbn (default)
  
      Metadata:
  
        creation_time   : 2016-01-28 09:16:38
  
        handler_name    : VideoHandle
  
      Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 256 kb/s (default)
  
      Metadata:
  
        creation_time   : 2016-01-28 09:16:38
  
        handler_name    : SoundHandle
  
  Incompatible pixel format 'yuv410p' for codec 'libx264', auto-selecting format 'yuv420p'
  
  [libx264 @ 0x2560c60] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  [libx264 @ 0x2560c60] profile High, level 1.3
  
  [libx264 @ 0x2560c60] 264 - core 148 r2694 3b70645 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=1 ref=5 deblock=1:0:0 analyse=0x3:0x113 me=umh subme=8 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=7 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=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=50 rc=crf mbtree=1 crf=20.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  [mp4 @ 0x255ed00] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
  
      Last message repeated 1 times
  
  Output #0, mp4, to '0001_finn_test_2.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      encoder         : Lavf57.37.100
  
      Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 320x240, q=2-31, 30 fps, 15360 tbn (default)
  
      Metadata:
  
        creation_time   : 2016-01-28 09:16:38
  
        handler_name    : VideoHandle
  
        encoder         : Lavc57.43.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
      Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 256 kb/s (default)
  
      Metadata:
  
        creation_time   : 2016-01-28 09:16:38
  
        handler_name    : SoundHandle
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  [h264 @ 0x29478c0] decode_slice_header error
  
  [h264 @ 0x29478c0] no frame!
  
  [h264 @ 0x298eb60] Cannot allocate memory.
  
  [h264 @ 0x298eb60] Could not allocate memory
  
  [h264 @ 0x298eb60] h264_slice_header_init() failedError while decoding stream #0:0: Cannot allocate memory
  
  [h264 @ 0x298eb60] Cannot allocate memory.
  
  [h264 @ 0x298eb60] Could not allocate memory
  
  [h264 @ 0x298eb60] h264_slice_header_init() failedError while decoding stream 
  
  [h264 @ 0x298eb60] h264_slice_header_init() failedError while decoding stream #0:0: Cannot allocate memory
  
  Error writing trailer of 0001_finn_test_2.mp4: Cannot allocate memoryframe=    0 fps=0.0 q=0.0 Lsize=       1kB time=00:00:09.07 bitrate=   0.8kbits/s speed= 103x    
  
  video:0kB audio:284kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  Conversion failed!

• Ubuntu 16.04 python installing 3rd party module ffmpeg-3.0.2

  3 juin 2016, par vanoccupanther

  Have tried installing this package multiple times. Initially I installed it to a directory where I am running scripts that call it but I get an error message "ImportError : No module named ’ffmpeg’".

  I then tried putting it in one of my python paths listed in sys.path and again I got the same message.

  I then opened .bashrc and added the home directory path and still got the same error message when I ran my script.

  import sys
  
  import pandas as pd
  
  import numpy as np
  
  import matplotlib.pyplot as plt
  
  import ffmpeg
  
  
  
  from PIL import Image
  
  
  
  img = sys.argv[1] # ignore this
  
  
  
  im = Image.open(img) # ignore this
  
  imarray = np.array(im) # ignore this
  
  
  
  ffmpeg -i ('flame.avi') -f image2 -c:v mjpeg ('image-%d.jpg')
  
  avconv -i ('flame.avi') -vsync ('1') -r ('100') ('image%03d.tif')

  I’m really not sure where to go, what are my options here ? And what am I doing that is glaringly wrong ?