[FFmpeg-trac] #458(swscale:open): Scale filter can create output which scale filter cannot accept on its input

[FFmpeg]

#458: Scale filter can create output which scale filter cannot accept on its
input
------------------------------------+-----------------------------------
             Reporter:  mdsh        |                    Owner:  michael
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  swscale
              Version:  git-master  |               Resolution:
             Keywords:              |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
------------------------------------+-----------------------------------

Comment (by cehoyos):

 {{{
 $ ./ffmpeg -i fate-suite/svq3/Vertical400kbit.sorenson3.mov -vf
 pad=in_w:in_h+2:0:2,scale=0:0:interl=1,format=uyvy422 -f null -
 ffmpeg version N-44632-ga16c512 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Sep 20 2012 16:11:00 with gcc 4.5.3 (GCC)
   configuration: --cc=/usr/local/gcc-4.5.3/bin/gcc --enable-gpl
   libavutil      51. 73.101 / 51. 73.101
   libavcodec     54. 56.100 / 54. 56.100
   libavformat    54. 27.101 / 54. 27.101
   libavdevice    54.  2.101 / 54.  2.101
   libavfilter     3. 16.105 /  3. 16.105
   libswscale      2.  1.101 /  2.  1.101
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x14f0240] max_analyze_duration 5000000 reached
 at 5000998
 Guessed Channel Layout for  Input Stream #0.1 : mono
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'fate-
 suite/svq3/Vertical400kbit.sorenson3.mov':
   Metadata:
     creation_time   : 2001-03-20 16:17:18
     title           : Vertical Online SV3 Demo
     title-eng       : Vertical Online SV3 Demo
     artist          : Logan Kelsey
     artist-eng      : Logan Kelsey
     copyright       : © Vertical Online 2001
     copyright-eng   : © Vertical Online 2001
     encoder         : Sorenson Video 3
     encoder-eng     : Sorenson Video 3
   Duration: 00:00:43.57, start: 0.000000, bitrate: 580 kb/s
     Stream #0:0(eng): Video: svq3 (SVQ3 / 0x33515653), yuvj420p, 320x240,
 391 kb/s, 30.02 fps, 30 tbr, 600 tbn, 600 tbc
     Metadata:
       creation_time   : 2001-03-20 16:17:18
       handler_name    : Apple Alias Data Handler
     Stream #0:1(eng): Audio: adpcm_ima_qt (ima4 / 0x34616D69), 44100 Hz,
 mono, s16, 176 kb/s
     Metadata:
       creation_time   : 2001-03-20 16:17:18
       handler_name    : Apple Alias Data Handler
 Output #0, null, to 'pipe:':
   Metadata:
     encoder-eng     : Sorenson Video 3
     title           : Vertical Online SV3 Demo
     title-eng       : Vertical Online SV3 Demo
     artist          : Logan Kelsey
     artist-eng      : Logan Kelsey
     copyright       : © Vertical Online 2001
     copyright-eng   : © Vertical Online 2001
     encoder         : Lavf54.27.101
     Stream #0:0(eng): Video: rawvideo (UYVY / 0x59565955), uyvy422,
 320x242, q=2-31, 200 kb/s, 90k tbn, 30 tbc
     Metadata:
       creation_time   : 2001-03-20 16:17:18
       handler_name    : Apple Alias Data Handler
     Stream #0:1(eng): Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
     Metadata:
       creation_time   : 2001-03-20 16:17:18
       handler_name    : Apple Alias Data Handler
 Stream mapping:
   Stream #0:0 -> #0:0 (svq3 -> rawvideo)
   Stream #0:1 -> #0:1 (adpcm_ima_qt -> pcm_s16le)
 Press [q] to stop, [?] for help
 Multiple frames in a packet from stream 1
 Assertion y%(2<<scale->vsub) == 0 failed at libavfilter/vf_scale.c:383
 Aborted
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/458#comment:5>
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