[FFmpeg-trac] #1066(undetermined:new): ProRes Scaling using the "-vf scale" filter produces a green output

[FFmpeg]

#1066: ProRes Scaling using the "-vf scale" filter produces a green output
-------------------------------------+-------------------------------------
             Reporter:  dfred        |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  ffmpeg       |               Blocked By:
  macports mac prores scale vf mov   |  Reproduced by developer:  0
  quicktime proxy                    |
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 '''Objective:''' To scale a 2048x854 ProRes422HQ video to a half-size
 ProRes422Proxy

 '''Problem:''' Output comes out all green.

 Notes:
 1) When I don't scale, the ProRes422Proxy comes out fine using "avcodec
 copy".
 2) If I start with a ProRes422Proxy at half-size it works if I just do
 "-avcodec copy" with no scaling.  So, it seems to be the scaling filter
 that causes a problem.
 3) Even if I try to scale using the same ProRes codec the output comes out
 green.

 '''Command Line:'''


 {{{
 ffmpeg -i cockpit_ProResHQ_2048x854.mov -vcodec prores -profile 0 -vf
 scale=iw/2:-1 -acodec copy cockpit_ProResProxy_1024x427.mov
 }}}


 '''OS Report:''' Using ffmpeg-devel from MacPorts on Mac OS 10.6.8

 '''Report Output:'''

 ffmpeg version 0.8.5.git, Copyright (c) 2000-2011 the FFmpeg developers
   built on Mar 13 2012 23:10:56 with gcc 4.2.1 (Apple Inc. build 5666)
 (dot 3)
   configuration: --prefix=/opt/local --enable-gpl --enable-postproc
 --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis
 --enable-libtheora --enable-libdirac --enable-libschroedinger --enable-
 libopenjpeg --enable-libmodplug --enable-libxvid --enable-libx264
 --enable-libvpx --enable-libspeex --mandir=/opt/local/share/man --enable-
 shared --enable-pthreads --cc=/usr/bin/gcc-4.2 --enable-nonfree --enable-
 libfaac --arch=x86_64 --enable-yasm
   libavutil    51. 23. 0 / 51. 23. 0
   libavcodec   53. 27. 0 / 53. 27. 0
   libavformat  53. 18. 0 / 53. 18. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 45. 3 /  2. 45. 3
   libswscale    2.  1. 0 /  2.  1. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10200ee00] Format mov,mp4,m4a,3gp,3g2,mj2
 probed with size=2048 and score=100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10200ee00] ISO: File Type Major Brand: qt
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10200ee00] Unimplemented container channel
 layout.
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10200ee00] If you want to help, upload a
 sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and
 contact the ffmpeg-devel mailing list.
 [prores @ 0x10200fa00] err{or,}_recognition separate: 1; 1
 [prores @ 0x10200fa00] err{or,}_recognition combined: 1; 1
 [pcm_s32be @ 0x102071200] err{or,}_recognition separate: 1; 1
 [pcm_s32be @ 0x102071200] err{or,}_recognition combined: 1; 1
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x10200ee00] Probe buffer size limit 5000000
 reached

 Seems stream 0 codec frame rate differs from container frame rate:
 23976.00 (23976/1) -> 23.98 (2997/125)
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
 'HiRes/cockpit_ProResHQ_2048x854.mov':
   Metadata:
     major_brand     : qt
     minor_version   : 537199360
     compatible_brands: qt
     creation_time   : 2012-03-07 21:39:19
   Duration: 00:00:00.41, start: 0.000000, bitrate: 169288 kb/s
     Stream #0:0(eng), 6, 1/23976: Video: prores (apch / 0x68637061),
 yuv422p10le, 2048x854, 1/23976, 167638 kb/s, 23.98 fps, 23.98 tbr, 23976
 tbn, 23976 tbc
     Metadata:
       creation_time   : 2012-03-07 21:39:19
       handler_name    : ?Apple Alias Data Handler
     Stream #0:1(eng), 0, 1/48000: Audio: pcm_s32be (lpcm / 0x6D63706C),
 48000 Hz, 1 channels, s32, 1536 kb/s
     Metadata:
       creation_time   : 2012-03-07 21:39:19
       handler_name    : ?Apple Alias Data Handler
     Stream #0:2(eng), 0, 1/23976: Data: none (tmcd / 0x64636D74)
     Metadata:
       creation_time   : 2012-03-07 21:39:19
       handler_name    : ?Apple Alias Data Handler
 At least one output file must be specified

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1066>
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