Opened 7 years ago

Closed 6 years ago

#893 closed defect (fixed)

jpegls: support color transforms

Reported by: ami_stuff Owned by:
Priority: normal Component: avcodec
Version: git-master Keywords: jpegls
Cc: Blocked By:
Blocking: Reproduced by developer: yes
Analyzed by developer: no

Description

Color Transform 1: R-=G, B-=G
Color Transform 2: B-=(R+G)/2
Color Transform 3: JPEG 2K lossless
Color Transform 4: YCbCr (not supported by IrfanView?)

Created with Photoshop + lsjpeg plug-in, decodes correctly with IrfanView?

There is also "Color Transform 5: YCbCr 211", but I'm unable to create the file (error message).

C:\>ffmpeg -i color_transform_1.jls
ffmpeg version N-36492-g7f83db3, Copyright (c) 2000-2012 the FFmpeg developers
  built on Jan  5 2012 01:57:12 with gcc 4.6.2
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-ru
ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libope
ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --en
able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger -
-enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwben
c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-
libxvid --enable-zlib
  libavutil      51. 34.100 / 51. 34.100
  libavcodec     53. 53.100 / 53. 53.100
  libavformat    53. 29.100 / 53. 29.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 57.101 /  2. 57.101
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0.  5.100 /  0.  5.100
  libpostproc    51.  2.100 / 51.  2.100
Input #0, image2, from 'color_transform_1.jls':
  Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: jpegls, rgb24, 1023x767, 25 tbr, 25 tbn, 25 tbc
At least one output file must be specified

Attachments (4)

color_transform_1.jls (943.5 KB) - added by ami_stuff 7 years ago.
color_transform_2.jls (923.6 KB) - added by ami_stuff 7 years ago.
color_transform_3.jls (938.8 KB) - added by ami_stuff 7 years ago.
color_transform_4.jls (775.0 KB) - added by ami_stuff 7 years ago.

Change History (8)

Changed 7 years ago by ami_stuff

Changed 7 years ago by ami_stuff

Changed 7 years ago by ami_stuff

Changed 7 years ago by ami_stuff

comment:1 Changed 7 years ago by cehoyos

  • Component changed from undetermined to avcodec
  • Keywords jpegls added
  • Reproduced by developer set
  • Status changed from new to open
  • Version changed from unspecified to git-master

comment:2 Changed 7 years ago by ami_stuff

this may be useful:

http://charls.codeplex.com/releases/view/55406

enum JPEGLS_ColorXForm
{
	// default (RGB)
	COLORXFORM_NONE = 0,	

	// Color transforms as defined by HP
	COLORXFORM_HP1,
	COLORXFORM_HP2,
	COLORXFORM_HP3,

	// Defined by HP but not supported by CharLS
	COLORXFORM_RGB_AS_YUV_LOSSY,
	COLORXFORM_MATRIX
};

comment:4 Changed 6 years ago by cehoyos

  • Resolution set to fixed
  • Status changed from open to closed

Sample 4 fixed by Michael in 8aea97a.

Note: See TracTickets for help on using tickets.