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• avcodec : export motion vectors in frame side data on demand

  16 juillet 2014, par Clément Bœsch

  avcodec : export motion vectors in frame side data on demand
  The reasoning behind this addition is that various third party
  
  applications are interested in getting some motion information out of a
  
  video "for free" when it is available.
  It was considered to export other information as well (such as the intra
  
  information about the block, or the quantization) but the structure
  
  might have ended up into a half full-generic, half full of codec
  
  specific cruft. If more information is necessary, it should either be
  
  added in the "flags" field of the AVMotionVector structure, or in
  
  another side-data.
  This commit also includes an example exporting them in a CSV stream.
  

  • [DH] .gitignore
  • [DH] configure
  • [DH] doc/APIchanges
  • [DH] doc/Makefile
  • [DH] doc/codecs.texi
  • [DH] doc/examples/Makefile
  • [DH] doc/examples/extract_mvs.c
  • [DH] libavcodec/avcodec.h
  • [DH] libavcodec/mpegvideo.c
  • [DH] libavcodec/options_table.h
  • [DH] libavutil/Makefile
  • [DH] libavutil/frame.c
  • [DH] libavutil/frame.h
  • [DH] libavutil/motion_vector.h
  • [DH] libavutil/version.h

• ffmpeg error - "error converting wmv to ac3 "

  13 octobre 2014, par yakumo

  hello i have an error

  my line

  ffmpeg -i 00003.track_4352.wav 00003.track_4352.ac3

  and résult

  ffmpeg version 2.1.5 Copyright (c) 2000-2014 the FFmpeg developers
  built on Jul 8 2014 20:44:17 with gcc 4.8.3 (GCC) 20140624 (Red Hat 4.8.3-1)
  configuration : —prefix=/usr —bindir=/usr/bin —datadir=/usr/share/ffmpeg —incdir=/usr/include/ffmpeg —libdir=/usr/lib64 —mandir=/usr/share/man —arch=x86_64 —optflags=’-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong —param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic’ —enable-bzlib —disable-crystalhd —enable-frei0r —enable-gnutls —enable-libass —enable-libcdio —enable-libcelt —enable-libdc1394 —disable-indev=jack —enable-libfreetype —enable-libgsm —enable-libmp3lame —enable-openal —enable-libopencv —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-libschroedinger —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libvorbis —enable-libv4l2 —enable-libvpx —enable-libx264 —enable-libxvid —enable-x11grab —enable-avfilter —enable-avresample —enable-postproc —enable-pthreads —disable-static —enable-shared —enable-gpl —disable-debug —disable-stripping —shlibdir=/usr/lib64 —enable-runtime-cpudetect
  libavutil 52. 48.101 / 52. 48.101
  libavcodec 55. 39.101 / 55. 39.101
  libavformat 55. 19.104 / 55. 19.104
  libavdevice 55. 5.100 / 55. 5.100
  libavfilter 3. 90.100 / 3. 90.100
  libavresample 1. 1. 0 / 1. 1. 0
  libswscale 2. 5.101 / 2. 5.101
  libswresample 0. 17.104 / 0. 17.104
  libpostproc 52. 3.100 / 52. 3.100
  00003.track_4352.wav : Invalid data found when processing input

  I do not understand this error can you help me I would like to convert this file

  thank you in advance

• avcodec/utils : Check that the data is complete in avpriv_bprint_to_extradata()

  25 novembre 2014, par Michael Niedermayer

  avcodec/utils : Check that the data is complete in avpriv_bprint_to_extradata()
  Fixes out of array read
  
  Fixes : asan_heap-oob_4d2250_814_cov_2745172097_JACOsub_capability_tester.jss
  
  Found-by : Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/utils.c