Recherche avancée

Sur d’autres sites (12383)

• lavfi : do not export the filters from shared objects

  28 octobre 2013, par Anton Khirnov

  lavfi : do not export the filters from shared objects
  

  • [DBH] libavfilter/af_aformat.c
  • [DBH] libavfilter/af_amix.c
  • [DBH] libavfilter/af_anull.c
  • [DBH] libavfilter/af_ashowinfo.c
  • [DBH] libavfilter/af_asyncts.c
  • [DBH] libavfilter/af_channelmap.c
  • [DBH] libavfilter/af_channelsplit.c
  • [DBH] libavfilter/af_join.c
  • [DBH] libavfilter/af_resample.c
  • [DBH] libavfilter/af_volume.c
  • [DBH] libavfilter/allfilters.c
  • [DBH] libavfilter/asink_anullsink.c
  • [DBH] libavfilter/asrc_anullsrc.c
  • [DBH] libavfilter/buffersink.c
  • [DBH] libavfilter/buffersrc.c
  • [DBH] libavfilter/fifo.c
  • [DBH] libavfilter/setpts.c
  • [DBH] libavfilter/split.c
  • [DBH] libavfilter/trim.c
  • [DBH] libavfilter/vf_aspect.c
  • [DBH] libavfilter/vf_blackframe.c
  • [DBH] libavfilter/vf_boxblur.c
  • [DBH] libavfilter/vf_copy.c
  • [DBH] libavfilter/vf_crop.c
  • [DBH] libavfilter/vf_cropdetect.c
  • [DBH] libavfilter/vf_delogo.c
  • [DBH] libavfilter/vf_drawbox.c
  • [DBH] libavfilter/vf_drawtext.c
  • [DBH] libavfilter/vf_fade.c
  • [DBH] libavfilter/vf_fieldorder.c
  • [DBH] libavfilter/vf_format.c
  • [DBH] libavfilter/vf_fps.c
  • [DBH] libavfilter/vf_frei0r.c
  • [DBH] libavfilter/vf_gradfun.c
  • [DBH] libavfilter/vf_hflip.c
  • [DBH] libavfilter/vf_hqdn3d.c
  • [DBH] libavfilter/vf_interlace.c
  • [DBH] libavfilter/vf_libopencv.c
  • [DBH] libavfilter/vf_lut.c
  • [DBH] libavfilter/vf_null.c
  • [DBH] libavfilter/vf_overlay.c
  • [DBH] libavfilter/vf_pad.c
  • [DBH] libavfilter/vf_pixdesctest.c
  • [DBH] libavfilter/vf_scale.c
  • [DBH] libavfilter/vf_select.c
  • [DBH] libavfilter/vf_settb.c
  • [DBH] libavfilter/vf_showinfo.c
  • [DBH] libavfilter/vf_transpose.c
  • [DBH] libavfilter/vf_unsharp.c
  • [DBH] libavfilter/vf_vflip.c
  • [DBH] libavfilter/vf_yadif.c
  • [DBH] libavfilter/vsink_nullsink.c
  • [DBH] libavfilter/vsrc_color.c
  • [DBH] libavfilter/vsrc_movie.c
  • [DBH] libavfilter/vsrc_nullsrc.c
  • [DBH] libavfilter/vsrc_testsrc.c

• dfa : Put our pointer check back.

  4 mai 2013, par Michael Niedermayer

  dfa : Put our pointer check back.
  The reimplementation by Libav does not prevent out of array
  
  writes, even though it looks like it does at a quick glance.
  No FFmpeg releases are affected by this
  See : d1c95d2ce39560e251fdb14f4af91b04fd7b845c
  
       3623589edc7b1257bb45aa9e52c9631e133f22b6
  
       740ebe468c0567cac03ef7e6b4b9fd0253b97da2
  Found-by : Mateusz "j00ru" Jurczyk and Gynvael Coldwind
  
  Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/dfa.c

• Error scaling a video using libav filters [duplicate]

  8 décembre 2016, par S B

  This question already has an answer here :

  • FFMPEG (libx264) “height not divisible by 2”
    
    4 answers
    

  I need to batch-process a bunch of videos to scale their height to 240 keeping the aspect ratio same. The command that gets the job almost done is :

  $ avconv -threads 4 -ss 0.0 -i input.avi \
  
  -map 0:0,0:0 -map 0:1,0:1 -vf "scale=-1:240" -y -f mpegts \
  
  -async -1 -vcodec libx264 -vcodec libx264 -flags2 +fast \
  
  -flags +loop -g 30 -bufsize 1024k \
  
  -b 200k -bt 220k -qmax 48 -qmin 2 -r 20 -acodec libmp3lame \
  
  -ab 44k -ar 44100 -ac 2 output.ts

  The interesting part, as you can see, is -vf "scale=-1:240"

  This works on videos where the scaled output width turns out to be an even number. Otherwise, I get the following error message :

  [libx264 @ 0x7fc4f8821e00] width not divisible by 2 (341x240)

  How do I overcome this ?

  Edit :
  As per this link, I tried using -vf "scale=trunc(oh/a/2)*2:240" which outputs a movie but the resulting video quality is really poor.

  Edit #2 :
  This is not a duplicate as it’s wrongly marked. This question was posted much earlier than the other one.