[FFmpeg-trac] #1514(undetermined:new): support gray16 pixel format in tiff

[FFmpeg]

#1514: support gray16 pixel format in tiff
-------------------------------------+-------------------------------------
             Reporter:  dericed      |                     Type:
               Status:  new          |  enhancement
            Component:               |                 Priority:  normal
  undetermined                       |                  Version:  git-
             Keywords:  tiff         |  master
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
 Summary of the bug:

 I would like to use a 16 bit gray pixel format in tiff. I see gray8 but if
 I want 16 bit I need to use an rgb64 pixel format (which is a bit larger
 than necessary). Here's a command that attempted to create a 16 bit gray
 tiff image (ffmpeg uses rgb64le).

 How to reproduce:
 {{{
 ffmpeg started on 2012-07-05 at 14:27:23
 Report written to "ffmpeg-20120705-142723.log"
 Command line:
 ffmpeg -report -f lavfi -i testsrc -vframes 1 -pix_fmt gray16be
 16bit_gray16le.tiff
 ffmpeg version 0.11.1.git Copyright (c) 2000-2012 the FFmpeg developers
   built on Jul  5 2012 11:22:03 with gcc 4.2.1 (Apple Inc. build 5666)
 (dot 3)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD --enable-shared
 --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables
 --enable-libfreetype --cc=/usr/bin/gcc-4.2 --enable-libx264 --enable-
 libfaac --enable-libmp3lame --enable-librtmp --enable-libtheora --enable-
 libvorbis --enable-libvpx --enable-libxvid --enable-libopencore-amrnb
 --enable-libopencore-amrwb --enable-libass --enable-libvo-aacenc
   libavutil      51. 64.100 / 51. 64.100
   libavcodec     54. 33.100 / 54. 33.100
   libavformat    54. 15.100 / 54. 15.100
   libavdevice    54.  1.100 / 54.  1.100
   libavfilter     3.  0.101 /  3.  0.101
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [Parsed_testsrc_0 @ 0x7ff0c1418440] size:320x240 rate:25/1
 duration:-1.000000 sar:1/1
 [out @ 0x7ff0c1418960] No opaque field provided
 [lavfi @ 0x7ff0c184e200] All info found
 [lavfi @ 0x7ff0c184e200] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, lavfi, from 'testsrc':
   Duration: N/A, start: 0.000000, bitrate: N/A
     Stream #0:0, 1, 1/25: Video: rawvideo (RGB[24] / 0x18424752), rgb24,
 320x240 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
 [buffer @ 0x7ff0c1419ce0] Setting entry with key 'video_size' to value
 '320x240'
 [buffer @ 0x7ff0c1419ce0] Setting entry with key 'pix_fmt' to value '2'
 [buffer @ 0x7ff0c1419ce0] Setting entry with key 'time_base' to value
 '1/25'
 [buffer @ 0x7ff0c1419ce0] Setting entry with key 'pixel_aspect' to value
 '1/1'
 [buffer @ 0x7ff0c1419ce0] Setting entry with key 'sws_param' to value
 'flags=2'
 [buffer @ 0x7ff0c1419ce0] Setting entry with key 'frame_rate' to value
 '25/1'
 [graph 0 input from stream 0:0 @ 0x7ff0c1419820] w:320 h:240 pixfmt:rgb24
 tb:1/25 fr:25/1 sar:1/1 sws_param:flags=2
 [output stream 0:0 @ 0x7ff0c141a020] No opaque field provided
 Incompatible pixel format 'gray16be' for codec 'tiff', auto-selecting
 format 'rgb48le'
 [format @ 0x7ff0c141a1a0] auto-inserting filter 'auto-inserted scaler 0'
 between the filter 'Parsed_null_0' and the filter 'format'
 [auto-inserted scaler 0 @ 0x7ff0c141a660] w:320 h:240 fmt:rgb24 sar:1/1 ->
 w:320 h:240 fmt:rgb48le sar:1/1 flags:0x4
 Output #0, image2, to '16bit_gray16le.tiff':
   Metadata:
     encoder         : Lavf54.15.100
     Stream #0:0, 0, 1/90000: Video: tiff, rgb48le, 320x240 [SAR 1:1 DAR
 4:3], q=2-31, 200 kb/s, 90k tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (rawvideo -> tiff)
 Press [q] to stop, [?] for help
 No more output streams to write to, finishing.
 frame=    1 fps=0.0 q=0.0 Lsize=       0kB time=00:00:00.04 bitrate=
 0.0kbits/s
 video:399kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 -100.000000%

 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1514>
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