[FFmpeg-trac] #1327(undetermined:new): vf vflip: horizontal line at the bottom when input have odd height (-pix_fmt yuv420p)

FFmpeg trac at avcodec.org
Sun May 20 13:37:18 CEST 2012


#1327: vf vflip: horizontal line at the bottom when input have odd height
(-pix_fmt yuv420p)
-------------------------------------+-------------------------------------
               Reporter:  ami_stuff  |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:             |  undetermined
  unspecified                        |               Keywords:
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 also reproducible with -vcodec ffv1/rawvideo/snow or -pix_fmt yuv410p

 {{{
 C:\>ffmpeg -i 600.png -pix_fmt yuv420p -vf vflip out.tif
 ffmpeg version N-40756-g703e920 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on May 17 2012 02:26:05 with gcc 4.5.0 20100414 (Fedora MinGW
 4.5.0-1.fc
 14)
   configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build
 --arch=
 x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32- --cc='ccache i686
 -pc-min
 gw32-gcc' --enable-w32threads --enable-memalign-hack --enable-runtime-
 cpudetect
 --enable-cross-compile --enable-static --disable-shared --extra-
 libs='-lws2_32 -
 lwinmm' --extra-cflags='--static
 -I/var/www/users/research/ffmpeg/snapshots/buil
 d/include' --extra-ldflags='-static
 -L/var/www/users/research/ffmpeg/snapshots/b
 uild/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-version3
 --enable-n
 onfree --enable-libx264 --enable-libspeex --enable-libtheora --enable-
 libvorbis
 --enable-libfaac --enable-libxvid --enable-libopencore-amrnb --enable-
 libopencor
 e-amrwb --enable-libmp3lame --enable-libvpx --disable-decoder=libvpx
   libavutil      51. 53.100 / 51. 53.100
   libavcodec     54. 21.101 / 54. 21.101
   libavformat    54.  5.100 / 54.  5.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 74.100 /  2. 74.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 11.100 /  0. 11.100
   libpostproc    52.  0.100 / 52.  0.100
 Input #0, image2, from '600.png':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: png, rgb24, 600x413, 25 tbr, 25 tbn, 25 tbc
 [buffer @ 0x1de1320] w:600 h:413 pixfmt:rgb24 tb:1/1000000 sar:0/1
 sws_param:fla
 gs=2
 [buffersink @ 0x1de1660] No opaque field provided
 [vflip @ 0x1de2520] auto-inserting filter 'auto-inserted scaler 0' between
 the f
 ilter 'src' and the filter 'Parsed_vflip_0'
 [scale @ 0x1de2d80] w:600 h:413 fmt:rgb24 sar:0/1 -> w:600 h:413
 fmt:yuv420p sar
 :0/1 flags:0x4
 Output #0, image2, to 'out.tif':
   Metadata:
     encoder         : Lavf54.5.100
     Stream #0:0: Video: tiff, yuv420p, 600x413, q=2-31, 200 kb/s, 90k tbn,
 25 tb
 c
 Stream mapping:
   Stream #0:0 -> #0:0 (png -> tiff)
 Press [q] to stop, [?] for help
 frame=    1 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.04 bitrate=
 0.0kbits/
 s
 video:304kB audio:0kB global headers:0kB muxing overhead -100.000000%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1327>
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