[FFmpeg-trac] #889(undetermined:new): ljpeg: lossless predictor
FFmpeg
trac at avcodec.org
Fri Jan 6 15:05:45 CET 2012
#889: ljpeg: lossless predictor
-------------------------------------+-------------------------------------
Reporter: ami_stuff | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
when the file have lossless predictor set to 0, ffmpeg decodes it
incorrectly (8/12/16/24/48bpp)
there is also a problem with lossless predictor 7 with 12bpp file
{{{
C:\>ffmpeg -i 12_lossless_predictor_7.jpg
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 '12_lossless_predictor_7.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #0:0: Video: mjpeg, gray16le, 1024x768 [SAR 96:96 DAR 4:3], 25
tbr, 2
5 tbn, 25 tbc
At least one output file must be specified
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/889>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list