[FFmpeg-trac] #875(undetermined:new): ljpeg: support files with interval in MCU-rows different than 0
FFmpeg
trac at avcodec.org
Wed Jan 4 22:55:44 CET 2012
#875: ljpeg: support files with interval in MCU-rows different than 0
-------------------------------------+-------------------------------------
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 |
-------------------------------------+-------------------------------------
I will attache ljpeg files with "restart interval in MCU-rows" option set
to 0, 1, 25 and 50. Currently FFmpeg can correctly decode files when this
option is set to 0.
I created attached files with "ImageConverter Plus" and then loaded them
to "PICTools Apollo" to confirm that the files are correct.
{{{
ffmpeg -i mcu50.jpg out.tif
ffmpeg version 0.9.0.git-dc7ad85, Copyright (c) 2000-2012 the FFmpeg
developers
built on Jan 4 2012 22:15:52 with gcc 4.5.0
libavutil 51. 34.100 / 51. 34.100
libavcodec 53. 50.100 / 53. 50.100
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
[mjpeg @ 0x11573ab0] Warning: not compiled with thread support, using
thread emulation
Input #0, image2, from 'mcu50.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Codec 0x8 is not in the full list.
Stream #0:0: Video: mjpeg, bgr24, 639x479, 25 tbr, 25 tbn, 25 tbc
Incompatible pixel format 'bgr24' for codec 'tiff', auto-selecting format
'rgb24'
[buffer @ 0x11576330] w:639 h:479 pixfmt:bgr24 tb:1/1000000 sar:0/1
sws_param:
[buffersink @ 0x115766b0] auto-inserting filter 'auto-inserted scale 0'
between the filter 'src' and the filter 'out'
[scale @ 0x11576c30] w:639 h:479 fmt:bgr24 -> w:639 h:479 fmt:rgb24
flags:0x4
[tiff @ 0x115752b0] Warning: not compiled with thread support, using
thread emulation
[mjpeg @ 0x11573ab0] Warning: not compiled with thread support, using
thread emulation
Output #0, image2, to 'out.tif':
Metadata:
encoder : Lavf53.29.100
Codec 0x62 is not in the full list.
Stream #0:0: Video: tiff, rgb24, 639x479, q=2-31, 200 kb/s, 90k tbn,
25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg -> tiff)
Press [q] to stop, [?] for help
frame= 1 fps= 0 q=0.0 Lsize= 0kB time=00:00:00.04 bitrate=
0.0kbits/s
video:905kB audio:0kB global headers:0kB muxing overhead -100.000000%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/875>
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