[FFmpeg-trac] #5650(undetermined:new): IFF ANIM: support decoding od interlaced Scala's anims

FFmpeg trac at avcodec.org
Sat Jun 18 12:43:56 CEST 2016


#5650: IFF ANIM: support decoding od interlaced Scala's anims
-------------------------------------+-------------------------------------
               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
-------------------------------------+-------------------------------------
 plays with:

 http://www.morguesoft.eu/Contenido/Programs/Windows/AWC-WIN.zip

 (but interlaced decoding is buggy atm - may crash due to invalid memory
 accesses)

 https://www.datafilehost.com/d/4e926a5f

 {{{
 ANIM 16i/ANIM32i

 These two formats are well worth experi-
 menting with if you have the time. They are
 only useful H you are going to play back ani-
 mations at maximum speed all the time, but
 the advantage is a 50% drop in file size. The
 format works by taking advantage of the
 Amiga's interlaced mode, which doubles the
 resolution by using two screen refreshes.
 Ordinarily this can appear as a form of flicker-
 ing when used to display the largely- static
 Workbench, but fast moving animations can
 benefit. The original animation must have
 been created in interlaced mode, and when
 saved the new file will discard every second
 line - which would not have been seen
 anyway."

 https://archive.org/stream/CUAmigaIssue101Jul98/CU_Amiga_Issue_101_Jul_98_djvu.txt
 }}}


 {{{
 C:\>ffmpegx -i at2.anim32i -f null -
 ffmpeg version N-80343-geaa1143 Copyright (c) 2000-2016 the FFmpeg
 developers
   built 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-pthreads --enable-memalign-hack --enable-runtime-
 cpudetect --
 enable-cross-compile --enable-static --disable-shared --extra-
 libs='-lws2_32 -lw
 inmm -lpthread' --extra-cflags='--static
 -I/var/www/users/research/ffmpeg/snapsh
 ots/build/include' --extra-ldflags='-static
 -L/var/www/users/research/ffmpeg/sna
 pshots/build/lib' --enable-bzlib --enable-zlib --enable-gpl --enable-
 version3 --
 enable-nonfree --enable-libx264 --enable-libspeex --enable-libtheora
 --enable-li
 bvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb
 --enable-li
 bopencore-amrwb --enable-libmp3lame --enable-libfreetype --enable-libvpx
 --disab
 le-decoder=libvpx
   libavutil      55. 24.100 / 55. 24.100
   libavcodec     57. 46.100 / 57. 46.100
   libavformat    57. 38.100 / 57. 38.100
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 46.101 /  6. 46.101
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  1.100 /  2.  1.100
   libpostproc    54.  0.100 / 54.  0.100
 Input #0, iff, from 'at2.anim32i':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: iff_ilbm (ANIM / 0x4D494E41), pal8, 640x256, 60
 fps, 60
 tbr, 60 tbn, 60 tbc
 [null @ 0x28d73a0] Using AVStream.codec to pass codec parameters to muxers
 is de
 precated, use AVStream.codecpar instead.
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf57.38.100
     Stream #0:0: Video: wrapped_avframe, pal8, 640x256, q=2-31, 200 kb/s,
 60 fps
 , 60 tbn, 60 tbc
     Metadata:
       encoder         : Lavc57.46.100 wrapped_avframe
 Stream mapping:
   Stream #0:0 -> #0:0 (iff_ilbm (iff) -> wrapped_avframe (native))
 Press [q] to stop, [?] for help
 [iff @ 0x28d4b80] bitmap (compression 0x6401, bpp 8, ham 0, interlaced 1)
 is not
  implemented. Update your FFmpeg version to the newest one from Git. If
 the prob
 lem still occurs, it means that your file has a feature which has not been
 imple
 mented.
 [iff @ 0x28d4b80] If you want to help, upload a sample of this file to
 ftp://upl
 oad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list.
 (ffmpeg-deve
 l at ffmpeg.org)
 Error while decoding stream #0:0: Invalid data found when processing input
 [iff @ 0x28d4b80] bitmap (compression 0x6401, bpp 8, ham 0, interlaced 1)
 is not
  implemented. Update your FFmpeg version to the newest one from Git. If
 the prob
 lem still occurs, it means that your file has a feature which has not been
 imple
 mented.
 [iff @ 0x28d4b80] If you want to help, upload a sample of this file to
 ftp://upl
 oad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list.
 (ffmpeg-deve
 l at ffmpeg.org)
 Error while decoding stream #0:0: Invalid data found when processing input
 [iff @ 0x28d4b80] bitmap (compression 0x6401, bpp 8, ham 0, interlaced 1)
 is not
  implemented. Update your FFmpeg version to the newest one from Git. If
 the prob
 lem still occurs, it means that your file has a feature which has not been
 imple
 mented.
 [iff @ 0x28d4b80] If you want to help, upload a sample of this file to
 ftp://upl
 oad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list.
 (ffmpeg-deve
 l at ffmpeg.org)
 Error while decoding stream #0:0: Invalid data found when processing input
 [iff @ 0x28d4b80] bitmap (compression 0x6401, bpp 8, ham 0, interlaced 1)
 is not
  implemented. Update your FFmpeg version to the newest one from Git. If
 the prob
 lem still occurs, it means that your file has a feature which has not been
 imple
 mented.
 [iff @ 0x28d4b80] If you want to help, upload a sample of this file to
 ftp://upl
 oad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list.
 (ffmpeg-deve
 l at ffmpeg.org)
 Error while decoding stream #0:0: Invalid data found when processing input
 frame=    1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.01 bitrate=N/A
 speed=N/A
 video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing ove
 rhead: unknown
 Exiting normally, received signal 2.
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/5650>
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