#894(undetermined:new): ljpeg: fix losslesss prediction 0 for 24bpp (and 48bpp)
#894: ljpeg: fix losslesss prediction 0 for 24bpp (and 48bpp) -------------------------------------+------------------------------------- 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 | -------------------------------------+------------------------------------- {{{ $ ffmpeg -i 24_pred0.jpg out2.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 '24_pred0.jpg': Duration: 00:00:00.04, start: 0.000000, bitrate: N/A Stream #0:0: Video: mjpeg, bgr24, 640x480, 25 tbr, 25 tbn, 25 tbc [buffer @ 016c1940] w:640 h:480 pixfmt:bgr24 tb:1/1000000 sar:0/1 sws_param: Output #0, image2, to 'out2.bmp': Metadata: encoder : Lavf53.29.100 Stream #0:0: Video: bmp, bgr24, 640x480, 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:900kB audio:0kB global headers:0kB muxing overhead -100.000000% }}} -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/894> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#894: ljpeg: fix losslesss prediction 0 for 24bpp (and 48bpp) -------------------------------------+----------------------------------- Reporter: ami_stuff | Owner: Type: defect | Status: open Priority: normal | Component: avcodec Version: git-master | Resolution: Keywords: mjpeg ljpeg | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+----------------------------------- Changes (by cehoyos): * keywords: => mjpeg ljpeg * status: new => open * version: unspecified => git-master * component: undetermined => avcodec * reproduced: 0 => 1 Comment: There is an ugly vertical line at the left side of the images. -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/894#comment:1> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#894: ljpeg: fix losslesss prediction 0 for 24bpp (and 48bpp) -------------------------------------+----------------------------------- Reporter: ami_stuff | Owner: Type: defect | Status: closed Priority: normal | Component: avcodec Version: git-master | Resolution: fixed Keywords: mjpeg ljpeg | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+----------------------------------- Changes (by michael): * status: open => closed * resolution: => fixed Comment: Fix on ML -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/894#comment:2> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#894: ljpeg: fix losslesss prediction 0 for 24bpp (and 48bpp) -------------------------------------+------------------------------------ Reporter: ami_stuff | Owner: Type: defect | Status: reopened Priority: normal | Component: avcodec Version: git-master | Resolution: Keywords: mjpeg ljpeg | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------ Changes (by cehoyos): * status: closed => reopened * resolution: fixed => Comment: Could you clarify if 48_pred0.jpg really is 48bit? Is there an application that can be used to show? -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/894#comment:3> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#894: ljpeg: fix losslesss prediction 0 for 24bpp (and 48bpp) -------------------------------------+------------------------------------ Reporter: ami_stuff | Owner: Type: defect | Status: reopened Priority: normal | Component: avcodec Version: git-master | Resolution: Keywords: mjpeg ljpeg | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+------------------------------------ Comment (by ami_stuff): Replying to [comment:3 cehoyos]:
Could you clarify if 48_pred0.jpg really is 48bit?
afaict, yes. when you use PIX_FMT_BGR48LE then only a half of the output will be filled with image, so probably some code needs to be added to ljpeg decoder to correctly support it.
Is there an application that can be used to show?
http://www.myviewpad.com/index.php -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/894#comment:4> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
#894: ljpeg: fix losslesss prediction 0 for 24bpp (and 48bpp) -------------------------------------+----------------------------------- Reporter: ami_stuff | Owner: Type: defect | Status: closed Priority: normal | Component: avcodec Version: git-master | Resolution: fixed Keywords: mjpeg ljpeg | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | -------------------------------------+----------------------------------- Changes (by michael): * status: reopened => closed * resolution: => fixed Comment: Fixed in b4a5fcb9988ce7cbe0a16f8f81a06a081db0973e -- Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/894#comment:5> FFmpeg <http://ffmpeg.org> FFmpeg issue tracker
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