[FFmpeg-trac] #891(undetermined:new): jpg: regression with odd width
FFmpeg
trac at avcodec.org
Sat Jan 7 02:25:11 CET 2012
#891: jpg: regression with odd width
-------------------------------------+-------------------------------------
Reporter: ami_stuff | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: mjpeg | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
-------------------------------------+-------------------------------------
Comment (by ami_stuff):
Please view 422_odd.jpg and out.bmp at the same time im IMDisplay
(ImageMagick). You will notice a one-pixel-wide vertical line (from top to
bottom of the image) in the output bmp file after the last person on the
image (right side). This line does not exist in loaded jpg image.
It's easier to spot it in IrfanView where the line have gray color (not
the color of the ground).
{{{
$ ffmpeg.exe -i 422_odd.jpg out.bmp
ffmpeg version 0.9.0.git-12d8340 Copyright (c) 2000-2012 the FFmpeg
developers
built on Jan 7 2012 02:04:56 with gcc 4.5.2
configuration: --disable-ffplay --disable-ffserver --disable-ffprobe
--disable
-asm --disable-yasm --disable-shared --enable-static
libavutil 51. 34.100 / 51. 34.100
libavcodec 53. 54.100 / 53. 54.100
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
Input #0, image2, from '422_odd.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #0:0: Video: mjpeg, yuvj440p, 1023x767 [SAR 96:96 DAR
1023:767], 25 t
br, 25 tbn, 25 tbc
Incompatible pixel format 'yuvj440p' for codec 'bmp', auto-selecting
format 'bgr
24'
[buffer @ 016c19c0] w:1023 h:767 pixfmt:yuvj440p tb:1/1000000 sar:96/96
sws_para
m:
[buffersink @ 016c1b80] auto-inserting filter 'auto-inserted scale 0'
between th
e filter 'src' and the filter 'out'
[scale @ 016c1d90] w:1023 h:767 fmt:yuvj440p -> w:1023 h:767 fmt:bgr24
flags:0x4
Output #0, image2, to 'out.bmp':
Metadata:
encoder : Lavf53.29.100
Stream #0:0: Video: bmp, bgr24, 1023x767 [SAR 1:1 DAR 1023:767],
q=2-31, 200
kb/s, 90k tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg -> bmp)
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:2301kB audio:0kB global headers:0kB muxing overhead -100.000000%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/891#comment:2>
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