[FFmpeg-trac] #6242(undetermined:new): rv20: 1-framed rv20 svt does not decode

[FFmpeg]

#6242: rv20: 1-framed rv20 svt does not decode
-------------------------------------+-------------------------------------
               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
-------------------------------------+-------------------------------------
 rv20 (not svt) decodes correctly

 {{{
 C:\>ffmpeg -i C:\g2svt_1frame.rm out.avi
 ffmpeg version 3.2.git Copyright (c) 2000-2017 the FFmpeg developers
   built with gcc 4.6.2 (GCC)
   configuration: --disable-pthreads --disable-ffprobe --enable-gpl
   libavutil      55. 48.100 / 55. 48.100
   libavcodec     57. 83.100 / 57. 83.100
   libavformat    57. 66.104 / 57. 66.104
   libavdevice    57.  3.100 / 57.  3.100
   libavfilter     6. 76.100 /  6. 76.100
   libswscale      4.  3.101 /  4.  3.101
   libswresample   2.  4.100 /  2.  4.100
   libpostproc    54.  2.100 / 54.  2.100
 [rm @ 02383d20] Invalid stream index 2 for index at pos 4250
 [sipr @ 0238d300] Warning: not compiled with thread support, using thread
 emulat
 ion
 [rv20 @ 027188c0] Warning: not compiled with thread support, using thread
 emulat
 ion
 Input #0, rm, from 'C:\g2svt_1frame.rm':
   Metadata:
     Target Audiences: 28K Modem (20 Kbps);
     Audio Format    : Voice Only
     Video Quality   : Smoothest Motion Video
     Creation Date   : 3/16/2017 14:41:21
     Modification Date: 3/16/2017 14:41:21
     Generated By    : RealMedia Build Engine 6.0.11.201 Windows
     File ID         : bc5f1b6d-05a0-f0df-1fd5-1f68b3c48742
     title           :
     author          :
     copyright       :
     comment         :
   Duration: 00:00:02.88, start: 0.000000, bitrate: 11 kb/s
     Stream #0:0: Audio: sipr (sipr / 0x72706973), 8000 Hz, mono, flt, 4
 kb/s
     Stream #0:1: Video: rv20 (RV20 / 0x30325652), yuv420p, 176x144, 15
 kb/s, 15
 fps, 15 tbr, 1k tbn, 1k tbc
 [sipr @ 02719fc0] Warning: not compiled with thread support, using thread
 emulat
 ion
 [rv20 @ 02386580] Warning: not compiled with thread support, using thread
 emulat
 ion
 Stream mapping:
   Stream #0:1 -> #0:0 (rv20 (native) -> mpeg4 (native))
   Stream #0:0 -> #0:1 (sipr (native) -> ac3 (native))
 Press [q] to stop, [?] for help
 [ac3 @ 0238e440] Warning: not compiled with thread support, using thread
 emulati
 on
 Finishing stream 0:0 without any data written to it.
 [mpeg4 @ 027269e0] Warning: not compiled with thread support, using thread
 emula
 tion
 Output #0, avi, to 'out.avi':
   Metadata:
     Target Audiences: 28K Modem (20 Kbps);
     Audio Format    : Voice Only
     Video Quality   : Smoothest Motion Video
     Creation Date   : 3/16/2017 14:41:21
     Modification Date: 3/16/2017 14:41:21
     Generated By    : RealMedia Build Engine 6.0.11.201 Windows
     File ID         : bc5f1b6d-05a0-f0df-1fd5-1f68b3c48742
     INAM            :
     author          :
     ICOP            :
     ICMT            :
     ISFT            : Lavf57.66.104
     Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 176x144,
 q=2-31, 200
  kb/s, 15 fps, 15 tbn, 15 tbc
     Metadata:
       encoder         : Lavc57.83.100 mpeg4
     Side data:
       cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
     Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 8000 Hz, mono, fltp, 96
 kb/s
     Metadata:
       encoder         : Lavc57.83.100 ac3
 frame=    0 fps=0.0 q=0.0 Lsize=      44kB time=00:00:02.88 bitrate=
 124.5kbits/
 s speed=8.38x
 video:0kB audio:34kB subtitle:0kB other streams:0kB global headers:0kB
 muxing ov
 erhead: 29.733797%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6242>
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