[FFmpeg-trac] #2011(undetermined:new): i263: artefacts with deblocking filter

[FFmpeg]

#2011: i263: artefacts with deblocking filter
-------------------------------------+-------------------------------------
               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
-------------------------------------+-------------------------------------
 I have tested i263 codec a bit more and found another issue.

 Attached file was encoded with "deblocking filter" option enabled, (this
 is a normal video, not with pb-frames) and ffmpeg decodes it with visible
 artefacts.

 http://www.datafilehost.com/download-09b7dbe4.html

 {{{
 C:\>ffmpeg -i normal_deblocking_filter.avi out.avi
 ffmpeg version N-47675-g20899c5 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Dec 10 2012 02:38:00 with gcc 4.5.0 (GCC) 20100414 (Fedora
 MinGW 4.5.
 0-1.fc14)
   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 -lpthread' --extra-cflags='--static
 -I/var/www/users/research/ffmpeg/snap
 shots/build/include' --extra-ldflags='-static
 -L/var/www/users/research/ffmpeg/s
 napshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-
 version3
 --enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora
 --enable-
 libvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb
 --enable-
 libopencore-amrwb --enable-libmp3lame --enable-libvpx --disable-
 decoder=libvpx
   libavutil      52. 12.100 / 52. 12.100
   libavcodec     54. 79.101 / 54. 79.101
   libavformat    54. 49.100 / 54. 49.100
   libavdevice    54.  3.102 / 54.  3.102
   libavfilter     3. 26.101 /  3. 26.101
   libswscale      2.  1.103 /  2.  1.103
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  2.100 / 52.  2.100
 Input #0, avi, from 'normal_deblocking_filter.avi':
   Metadata:
     encoder         : VirtualDubMod 1.5.10.2 (build 2542/release)
   Duration: 00:00:15.12, start: 0.000000, bitrate: 1175 kb/s
     Stream #0:0: Video: h263i (I263 / 0x33363249), yuv420p, 320x240, 25
 tbr, 25
 tbn, 25 tbc
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf54.49.100
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240,
 q=2-31, 200
  kb/s, 25 tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (h263i -> mpeg4)
 Press [q] to stop, [?] for help
 frame=  137 fps=0.0 q=5.8 size=     262kB time=00:00:05.48 bitrate=
 391.9kbits/s
 frame=  247 fps=0.0 q=12.1 size=     473kB time=00:00:09.88 bitrate=
 392.1kbits/
 frame=  378 fps=255 q=5.8 Lsize=     635kB time=00:00:15.12 bitrate=
 344.1kbits/
 s
 video:620kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 2.352102%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2011>
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