[FFmpeg-trac] #816(undetermined:new): tiff enc: gray (empty) output with pal8

[FFmpeg]

#816: tiff enc: gray (empty) output with pal8
-------------------------------------+-------------------------------------
             Reporter:  ami_stuff    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by ami_stuff):

 regression between N-35295-gb55dd10 and N-35462-g61b1d85

 {{{
 C:\>ffmpeg.exe -i test.bmp -pix_fmt pal8 iiii.tif
 ffmpeg version N-35295-gb55dd10, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Nov 30 2011 00:52:52 with gcc 4.6.2
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-ru
 ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-
 libope
 ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-
 libgsm --en
 able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-
 libschroedinger -
 -enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-
 amrwben
 c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs
 --enable-
 libxvid --enable-zlib
   libavutil    51. 29. 1 / 51. 29. 1
   libavcodec   53. 39. 1 / 53. 39. 1
   libavformat  53. 22. 0 / 53. 22. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 50. 0 /  2. 50. 0
   libswscale    2.  1. 0 /  2.  1. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 Input #0, image2, from 'test.bmp':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: bmp, bgr24, 1024x768, 25 tbr, 25 tbn, 25 tbc
 [buffer @ 020C1A00] w:1024 h:768 pixfmt:bgr24 tb:1/1000000 sar:0/1
 sws_param:
 [buffersink @ 020C1C80] auto-inserting filter 'auto-inserted scale 0'
 between th
 e filter 'src' and the filter 'out'
 Impossible to convert between the formats supported by the filter 'auto-
 inserted
  scale 0' and the filter 'out'
 Error opening filters!
 }}}

 {{{
 C:\>ffmpeg.exe -i test.bmp -pix_fmt pal8 iiii.tif
 ffmpeg version N-35462-g61b1d85, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Dec  5 2011 14:22:27 with gcc 4.6.2
   configuration: --enable-gpl --enable-version3 --disable-w32threads
 --enable-ru
 ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-
 libope
 ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-
 libgsm --en
 able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-
 libschroedinger -
 -enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-
 amrwben
 c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs
 --enable-
 libxvid --enable-zlib
   libavutil    51. 30. 0 / 51. 30. 0
   libavcodec   53. 40. 0 / 53. 40. 0
   libavformat  53. 24. 0 / 53. 24. 0
   libavdevice  53.  4. 0 / 53.  4. 0
   libavfilter   2. 51. 0 /  2. 51. 0
   libswscale    2.  1. 0 /  2.  1. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 Input #0, image2, from 'test.bmp':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: bmp, bgr24, 1024x768, 25 tbr, 25 tbn, 25 tbc
 [buffer @ 020C1480] w:1024 h:768 pixfmt:bgr24 tb:1/1000000 sar:0/1
 sws_param:
 [buffersink @ 020C1700] auto-inserting filter 'auto-inserted scale 0'
 between th
 e filter 'src' and the filter 'out'
 [scale @ 020C1B40] w:1024 h:768 fmt:bgr24 -> w:1024 h:768 fmt:pal8
 flags:0x4
 Output #0, image2, to 'iiii.tif':
   Metadata:
     encoder         : Lavf53.24.0
     Stream #0:0: Video: tiff, pal8, 1024x768, q=2-31, 200 kb/s, 90k tbn,
 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (bmp -> tiff)
 Press [q] to stop, [?] for help
 frame=    1 fps=  0 q=0.0 Lsize=       0kB time=00:00:00.04 bitrate=
 0.0kbits/
 s
 video:759kB audio:0kB global headers:0kB muxing overhead -100.000000%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/816#comment:1>
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