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• avcodec/ituh263dec : Make the condition for the studio slice start code match between...

  14 septembre 2019, par Michael Niedermayer

  avcodec/ituh263dec : Make the condition for the studio slice start code match between ff_h263_resync() and ff_mpeg4_decode_studio_slice_header()
  If they mismatch an infinite loop can occur
  
  Fixes : Timeout (infinite loop)
  
  Fixes : 17043/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG4_fuzzer-5695051748868096
  Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/ituh263dec.c

• test : hlsenc : Make the hls_fmp4 sample file name match the target

  1er août 2020, par Martin Storsjö

  test : hlsenc : Make the hls_fmp4 sample file name match the target
  Previously, with the file name not matching the target, the files
  
  were regenerated every time fate is rerun - contrary to the other
  
  test targets in the same file. (While regenerating it every time
  
  might be desireable, as that's what the test is about, the file
  
  at least has a dependency on the ffmpeg executable, making them
  
  regenerated every time the executable is updated - and this change
  
  at least makes it consistent with the rest.)
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] tests/fate/hlsenc.mak

• FFmpeg - concat videos error, do not match the corresponding output link ?

  18 février 2021, par wensefu

  I'm trying to concat some video into one single video using ffmpeg.

  



  input information :

  



  a.mp4 1920x808 , b.mkv 1280x720

  



  First I tried command below and it works fine :

  



  


  ffmpeg -i a.mp4 -i b.mkv -f lavfi -t 0.1 -i anullsrc -filter_complex [1:v]scale=1920:808:force_original_aspect_ratio=decrease,pad=1920:808 :(ow-iw)/2 :(oh-ih)/2[v1] ; [0:v][0:a][v1][1:a]concat=n=2:v=1:a=1[outv][outa] -map [outv] -map [outa] -vcodec libx264 -crf 27 -preset ultrafast -threads 2 out.mp4

  


  



  And then I put 'b.mkv' first :

  



  


  ffmpeg -i b.mkv -i a.mp4 -f lavfi -t 0.1 -i anullsrc -filter_complex [0:v]scale=1920:808:force_original_aspect_ratio=decrease,pad=1920:808 :(ow-iw)/2 :(oh-ih)/2[v0] ; [v0][0:a][1:v][1:a]concat=n=2:v=1:a=1[outv][outa] -map [outv] -map [outa] -vcodec libx264 -crf 27 -preset ultrafast -threads 2 out.mp4

  


  



  but this time I got error :

  



  


  Input link in1:v0 parameters (size 1920x808, SAR 0:1) do not match the corresponding output link in0:v0 parameters (1920x808, SAR 3232:3231)

  


  



  I don't understand why ?

  



  Any ideas anyone ?

  



  Many thanks in advance.