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• avformat/movenc : Check pal_size before use

  29 mai 2021, par Michael Niedermayer

  avformat/movenc : Check pal_size before use
  Fixes : assertion failure
  
  Fixes : out of array read
  
  Fixes : Ticket8190
  
  Fixes : CVE-2020-22015
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/movenc.c

• avcodec/adpcm_ima_{apc, ssi, oki} : replace while() with for()

  18 avril 2020, par Zane van Iperen

  avcodec/adpcm_ima_apc, ssi, oki : replace while() with for()
  Per discussion at https://ffmpeg.org/pipermail/ffmpeg-devel/2020-April/260854.html
  Signed-off-by : Zane van Iperen <zane@zanevaniperen.com>
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/adpcm.c

• How to expand bash array into arguments correctly

  12 avril 2022, par alvgarci

  I'm working on a script on Bash.

  


  The objective is pass 36 arguments to a ffmpeg via command.

  


  Steps here :

  


  


  1. I verified the command. This one works fine :

     


     ffmpeg -i  "$f" -y -acodec aac -ab 128k  -vcodec copy  -f mp4 -movflags use_metadata_tags   -metadata MtsExifToolVersionNumber="12.30"  -metadata MtsFileName="00017.MTS"  -metadata MtsDirectory="."  -metadata MtsFileSize="59 MiB"  -metadata MtsFileModificationDate/Time="2020"  -metadata MtsFileAccessDate/Time="2021"  -metadata MtsFileInodeChangeDate/Time="2022"  -metadata MtsFilePermissions="-rwxr-xr-x"  -metadata MtsFileType="M2TS"  -metadata MtsFileTypeExtension="mts"  -metadata MtsMIMEType="video/m2ts"  -metadata MtsVideoStreamType="H.264 (AVC) Video"  -metadata MtsAudioBitrate="256 kbps"  -metadata MtsSurroundMode="Not indicated"  -metadata MtsAudioChannels="2"  -metadata MtsAudioStreamType="PGS Audio"  -metadata MtsImageWidth="1920"  -metadata MtsImageHeight="1080"  -metadata MtsDate/TimeOriginal="2020"  -metadata MtsApertureSetting="Auto"  -metadata MtsGain="0 dB"  -metadata MtsExposureProgram="Program AE"  -metadata MtsWhiteBalance="Auto"  -metadata MtsFocus="Auto (0.155)"  -metadata MtsImageStabilization="On (0x3f)"  -metadata MtsExposureTime="1/60"  -metadata MtsFNumber="3.4"  -metadata MtsMake="Sony"  -metadata MtsCameraModelName="HDR-CX405"  -metadata MtsWarning="[minor] The ExtractEmbedded option may find more tags in the video data"  -metadata MtsAudioSampleRate="48000"  -metadata MtsDuration="18.71 s"  -metadata MtsAperture="3.4"  -metadata MtsImageSize="1920x1080"  -metadata MtsMegapixels="2.1"  -metadata MtsShutterSpeed="1/60"  -metadata Offset="$Offset" -metadata creation_time="$DATE" "./$output/convert_exif_ok/$MP4_NAME"


     


  


  


  Now.. I created a bash array and I tried to expand it directly on the command :

  


    ffmpeg -i  "$f" -y -acodec aac -ab 128k  -vcodec copy  -f mp4 -movflags use_metadata_tags  $(echo "${exif_2[@]}"  )   -metadata Offset="$Offset" -metadata creation_time="$DATE" "./$output/convert_exif_ok/$MP4_NAME"


  


  And.. this doesn't work..

  


  Seems like it's taking one argument so long instead of 36 different arguments..

  


  This is the output :

  


      ffmpeg version 5.0.1 Copyright (c) 2000-2022 the FFmpeg developers
  built with Apple clang version 12.0.0 (clang-1200.0.32.29)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/5.0.1 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
  libavutil      57. 17.100 / 57. 17.100
  libavcodec     59. 18.100 / 59. 18.100
  libavformat    59. 16.100 / 59. 16.100
  libavdevice    59.  4.100 / 59.  4.100
  libavfilter     8. 24.100 /  8. 24.100
  libswscale      6.  4.100 /  6.  4.100
  libswresample   4.  3.100 /  4.  3.100
  libpostproc    56.  3.100 / 56.  3.100
Input #0, mpegts, from '00017.MTS':
  Duration: 00:00:18.72, start: 1.020000, bitrate: 26466 kb/s
  Program 1
  Stream #0:0[0x1011]: Video: h264 (High) (HDPR / 0x52504448), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 50 fps, 50 tbr, 90k tbn
  Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 256 kb/s
  Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080
 -metadata MtsExifToolVersionNumber="12.30"  -metadata MtsFileName="00017.MTS"  -metadata MtsDirectory="."  -metadata MtsFileSize="59 MiB"  -metadata MtsFileModificationDate/Time="2020"  -metadata MtsFileAccessDate/Time="2021"  -metadata MtsFileInodeChangeDate/Time="2022"  -metadata MtsFilePermissions="-rwxr-xr-x"  -metadata MtsFileType="M2TS"  -metadata MtsFileTypeExtension="mts"  -metadata MtsMIMEType="video/m2ts"  -metadata MtsVideoStreamType="H.264 (AVC) Video"  -metadata MtsAudioBitrate="256 kbps"  -metadata MtsSurroundMode="Not indicated"  -metadata MtsAudioChannels="2"  -metadata MtsAudioStreamType="PGS Audio"  -metadata MtsImageWidth="1920"  -metadata MtsImageHeight="1080"  -metadata MtsDate/TimeOriginal="2020"  -metadata MtsApertureSetting="Auto"  -metadata MtsGain="0 dB"  -metadata MtsExposureProgram="Program AE"  -metadata MtsWhiteBalance="Auto"  -metadata MtsFocus="Auto (0.155)"  -metadata MtsImageStabilization="On (0x3f)"  -metadata MtsExposureTime="1/60"  -metadata MtsFNumber="3.4"  -metadata MtsMake="Sony"  -metadata MtsCameraModelName="HDR-CX405"  -metadata MtsWarning="[minor] The ExtractEmbedded option may find more tags in the video data"  -metadata MtsAudioSampleRate="48000"  -metadata MtsDuration="18.71 s"  -metadata MtsAperture="3.4"  -metadata MtsImageSize="1920x1080"  -metadata MtsMegapixels="2.1"  -metadata MtsShutterSpeed="1/60": File name too long


  


  Well.. I'm sure I'm doing something wrong on the way of passing the content of the array to the arguments..

  


  Any help ?

  


  Thanks