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Les articles publiés sur le site

• ffplay : estimate audio frame pts from the previous frame pts values

  13 juillet 2013, par Marton Balint

  ffplay: estimate audio frame pts from the previous frame pts values
  
  Previously we estimated the audio packet pts instead of the frame pts,
  therefore it only worked within a single packet (containing multiple frames).
  
  The new method works accross seperate audio packets as well and also handles
  better the case if a decoder buffers several packets before outputting a
  decoded frame.
  
  Signed-off-by: Marton Balint <cus@passwd.hu>
  

  • [DH] ffplay.c

• jpeg2000 : fix overflow in dequantization

  13 juillet 2013, par Michael Niedermayer

  jpeg2000: fix overflow in dequantization
  
  Fixes decoding of file generated with:
  ffmpeg -f lavfi -i smptehdbars=hd720 -pix_fmt rgb48 /tmp/o.jp2
  
  Reviewed-by: Nicolas BERTRAND <nicoinattendu@gmail.com>
  Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/j2kenc.c
  • [DH] libavcodec/jpeg2000.c
  • [DH] libavcodec/jpeg2000dec.c

• ffmpeg_filter : do not pick evil path for trim filters

  12 juillet 2013, par Paul B Mahol

  ffmpeg_filter: do not pick evil path for trim filters
  
  Signed-off-by: Paul B Mahol <onemda@gmail.com>
  

  • [DH] ffmpeg_filter.c

• alsdec : Clean up error paths

  12 juillet 2013, par Luca Barbato

  alsdec: Clean up error paths
  
  Fix at least a memory leak.
  
  CC: libav-stable@libav.org
  

  • [DH] libavcodec/alsdec.c

• jpeg2000 : Initialize only once mqc arrays

  12 juillet 2013, par Nicolas Bertrand

  jpeg2000: Initialize only once mqc arrays
  
  Improves decoding speed.
  
  Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
  

  • [DH] libavcodec/jpeg2000dec.c
  • [DH] libavcodec/mqc.c
  • [DH] libavcodec/mqc.h