[FFmpeg-trac] #6842(undetermined:new): ClearVideo: support P-frames

[FFmpeg]

#6842: ClearVideo: support P-frames
-------------------------------------+-------------------------------------
               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
-------------------------------------+-------------------------------------
 there is also something like fif (fractal image format) from the same
 company
 maybe it would be easier to re/implement it and reuse part of the code for
 clv1 decoder?

 http://users.senet.com.au/~mjbone/Fractals.html
 http://www.drdobbs.com/tools/inside-iterated-systems-fractal-
 developm/184410115

 some more clv1 samples:

 https://files.fm/u/dccwwnyy

 {{{
 C:\>ffmpeg -i clv1_50kbps.rm out.avi
 ffmpeg version 3.4.git Copyright (c) 2000-2017 the FFmpeg developers
   built with gcc 4.6.2 (GCC)
   configuration: --enable-gpl --disable-ffprobe
   libavutil      56.  0.100 / 56.  0.100
   libavcodec     58.  1.100 / 58.  1.100
   libavformat    58.  0.102 / 58.  0.102
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  0.101 /  7.  0.101
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 [clearvideo @ 0236d4e0] Warning: not compiled with thread support, using
 thread
 emulation
 Input #0, rm, from 'clv1_50kbps.rm':
   Metadata:
     title           :
     author          :
     copyright       :
     comment         :
   Duration: 00:00:03.20, start: 0.000000, bitrate: 41 kb/s
     Stream #0:0: Video: clearvideo (CLV1 / 0x31564C43), yuv420p, 320x240,
 50 kb/
 s, 15 fps, 15 tbr, 1k tbn, 1k tbc
 [clearvideo @ 024d8d00] Warning: not compiled with thread support, using
 thread
 emulation
 Stream mapping:
   Stream #0:0 -> #0:0 (clearvideo (native) -> mpeg4 (native))
 Press [q] to stop, [?] for help
 [mpeg4 @ 023651a0] Warning: not compiled with thread support, using thread
 emula
 tion
 Output #0, avi, to 'out.avi':
   Metadata:
     INAM            :
     author          :
     ICOP            :
     ICMT            :
     ISFT            : Lavf58.0.102
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 320x240,
 q=2-31, 200
  kb/s, 15 fps, 15 tbn, 15 tbc
     Metadata:
       encoder         : Lavc58.1.100 mpeg4
     Side data:
       cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
 [clearvideo @ 024d8d00] Non-I-frames in Clearvideo is not implemented.
 Update yo
 ur FFmpeg version to the newest one from Git. If the problem still occurs,
 it me
 ans that your file has a feature which has not been implemented.
 Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches
 welcome

     Last message repeated 29 times
 frame=    2 fps=0.0 q=2.0 Lsize=      17kB time=00:00:00.86 bitrate=
 159.2kbits/
 s speed=2.64x
 video:11kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing ov
 erhead: 53.329185%
 Conversion failed!
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/6842>
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