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• Revision ce08006951 : Always check and free denoiser buffer memory space The vp9_denoiser_free() func

  7 janvier 2015, par Jingning Han

  Changed Paths :
   Modify /vp9/encoder/vp9_encoder.c

  
  
  Always check and free denoiser buffer memory space

  The vp9_denoiser_free() function will internally check if the
  buffer pointers are NULL. This commit makes the encoder always
  call vp9_denoiser_free() after finishing encoding. It protects the
  case where noise_sensitivity_level is changed during encoding
  process and happen to be turned off towards the end of sequence,
  which could result memory space allocated to denoiser not being
  released.

  Change-Id : Ie20dc2f2e6e5fb6333fbab3356bc153978a6a0f8

• Piping to ffmpeg fails - "pipe: : Not enough space"

  23 avril 2015, par Classiest Medic

  I’m attempting to write a script that can download a file from a webserver to memory, pipe it directly to the ffprobe module of ffmpeg, and return the file’s details as determined by ffprobe. This is what I currently have :

  import requests
  
  from io import BytesIO
  
  from subprocess import Popen, PIPE
  
  
  
  def get_file(url):
  
      r = requests.get(url)
  
      file = BytesIO(r.content).seek(0)
  
      return file
  
  
  
  def get_info(file):
  
      p = Popen(["ffprobe", "-i", "-"], stdin=file, stdout=PIPE, stderr=PIPE)
  
      output = p.communicate()[1].decode("utf8")
  
      return output

  Here is a comparison between outputs for a file loaded with open() :

  ffprobe version N-66931-gbbd8c85 Copyright (c) 2007-2014 the FFmpeg developers
  
    built on Oct 17 2014 01:05:12 with gcc 4.9.1 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      54. 10.100 / 54. 10.100
  
    libavcodec     56.  8.100 / 56.  8.100
  
    libavformat    56.  9.100 / 56.  9.100
  
    libavdevice    56.  1.100 / 56.  1.100
  
    libavfilter     5.  1.106 /  5.  1.106
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, mp3, from 'pipe:':
  
    Metadata:
  
      title           : Test File
  
    Duration: N/A, start: 0.000000, bitrate: 320 kb/s
  
      Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
  
      Metadata:
  
        title           : Test File

  ... and a file downloaded with get_file() :

  ffprobe version N-66931-gbbd8c85 Copyright (c) 2007-2014 the FFmpeg developers
  
    built on Oct 17 2014 01:05:12 with gcc 4.9.1 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      54. 10.100 / 54. 10.100
  
    libavcodec     56.  8.100 / 56.  8.100
  
    libavformat    56.  9.100 / 56.  9.100
  
    libavdevice    56.  1.100 / 56.  1.100
  
    libavfilter     5.  1.106 /  5.  1.106
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  pipe:: Not enough space

  At first, this appears like an issue with insufficient memory, but the files I’m working with are small (<10MB), so I don’t think that’s the issue. Apparently, though, I’m doing something wrong... could anyone give me any suggestions as to why piping would fail in this instance ?

• Revision ecbca31a1d : Fix comments and color format Replaced "color space" with "color format" in com

  9 janvier 2015, par Yaowu Xu

  Changed Paths :
   Modify /vp9/decoder/vp9_decodeframe.c

  
   Modify /vp9/encoder/vp9_encoder.c

  
   Modify /vp9/vp9_cx_iface.c

  
  
  Fix comments and color format

  Replaced "color space" with "color format" in comments where color
  sampling format is concerned, so to differentiate from the concept
  defined in COLOR_SPACE.

  Change-Id : I8c935034c166b24307a99352dab1686531276bb8