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• avcodec/libjxl : add #ifdef guards for libjxl >= 0.8.0 features

  4 février 2023, par Leo Izen

  avcodec/libjxl : add #ifdef guards for libjxl >= 0.8.0 features
  Since many distributions ship libjxl 0.7.0 still, we'd still prefer to
  
  compile against that, but don't want to lose the features that require
  
  libjxl 0.8.0 or greater. For this reason I've added preprocessor #ifdef
  
  guards around the features that aren't necessarily in libjxl 0.7.0.
  Signed-off-by : Leo Izen <leo.izen@gmail.com>
  

  • [DH] libavcodec/libjxl.h
  • [DH] libavcodec/libjxldec.c
  • [DH] libavcodec/libjxlenc.c

• avcodec/cbs_av1 : add a range check to tg_end

  27 octobre 2020, par James Almer

  avcodec/cbs_av1 : add a range check to tg_end
  Section 6.10.1 of the AV1 spec states :
  It is a requirement of bitstream conformance that the value of tg_start is
  
  equal to the value of TileNum at the point that tile_group_obu is invoked.
  
  It is a requirement of bitstream conformance that the value of tg_end is
  
  greater than or equal to tg_start.
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/cbs_av1.c
  • [DH] libavcodec/cbs_av1.h
  • [DH] libavcodec/cbs_av1_syntax_template.c

• x264 Building error - Android

  21 avril 2016, par Jay Parikh

  I am using this repository to build ffmpeg static library which includes x264,libpng and others, please
  visit this link https://github.com/writingminds/ffmpeg-android

  i am using windows 7 as host and ubuntu 15.10 (_64) as guest os using VMware Workstation 12
  and
  Android-ndk-r11b-linux-x86_64

  i do have Prebuilt libraries , but now i want it without PIE support

  i am getting this error in config.log in x264 folder while building
  through

  ./android_build.sh

  here is the log :

  x264 configure script
  
  Command line options: "--cross-prefix=/mnt/hgfs/uShare/ffmpeg-android/toolchain-android/bin/arm-linux 
  
  /mnt/hgfs/uShare/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi-gcc 
  
  
  
  checking whether /mnt/hgfs/uShare/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi-gcc 
  
  
  
  --sysroot=/mnt/hgfs/uShare/ffmpeg-android/toolchain-android/sysroot works... no
  
  
  
   Failed commandline was:
  
  
  
  --sysroot=/mnt/hgfs/uShare/ffmpeg-android/toolchain-android/sysroot conftest.c  -Wall -I. -I$(SRCPATH) --sysroot=/mnt/hgfs/uShare/ffmpeg-android/toolchain-android/sysroot    --sysroot=/mnt/hgfs/uShare/ffmpeg-android/toolchain-android/sysroot -lm -o conftest
  
  
  
  /mnt/hgfs/uShare/ffmpeg-android/toolchain-android/bin/../lib/gcc/arm-linux-androideabi/4.9/../../../../arm-linux-androideabi/bin/ld: fatal error:
  
  
  
  conftest: Input/output error
  
  
  
  Failed program was: 
  
  
  
  int main (void) {  return 0; }
  
  
  
  DIED: No working C compiler found.

  ushare is my shared folder between windows and ubuntu

  I have spend almost a week ,trying to solve every error i get.
  these errors are like never ending , 1 solution give 10 more errors
  i have researched a LOT for this library

  thanks a lot in advance.

  Also i thought that x264 library might have poroblem ,so i tried to disable it
  but next library "libpng" also had Same log Error

  i think problem is in Input/output error (obviously)
  this line in log kind of confuses me (those /../../)

  /mnt/hgfs/uShare/ffmpeg-android/toolchain-android/bin/../lib/gcc/arm-linux-androideabi/4.9/../../../../arm-linux-androideabi/bin/ld : fatal error :

  its like two folder overlaping address...

  thanks a lot in advance.
  please don’t go harsh on me ,its my first time,all thanks to this thing...