YoyaWiki

IO_Bit > IO_HEIF | HEIF/HEVC

• https://github.com/yoya/IO_HEIF
• https://packagist.org/packages/yoya/io_heif

require†

• IO_Bit
• IO_ISOBMFF
• IO_HEVC
• IO_ICC

usage†

• dump as text

  % composer require yoya/io_heif
  % php vendor/yoya/io_heif/sample/heifdump.php -f test.heic

HEVC†

• JPEG =(ffmpeg + x265)=> HEVC =(IO_HEIF)=> HEIF(.heic)

  % ffmpeg -i test.jpg -loglevel warning  -pix_fmt yuv420p -vcodec libx265 -f hevc \
                  -x265-params log-level=1 -crf 12 -preset slower test.hevc
  % php vendor/yoya/io_heif/sample/heiffromhevc.php  -f test.hevc > test.heic

関連†

• FFmpeg
• x265