[FFmpeg-trac] #3343(avfilter:new): Support 9-16 bit pixel formats in vf_pad

[FFmpeg]

#3343: Support 9-16 bit pixel formats in vf_pad
----------------------------------+---------------------------------------
             Reporter:  abc123    |                     Type:  enhancement
               Status:  new       |                 Priority:  normal
            Component:  avfilter  |                  Version:  unspecified
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
----------------------------------+---------------------------------------
 Summary of the bug:
 libavfilter drawutils does not support bit depths other than 8, as
 remarked in the code:
 {{{
 int ff_draw_init(FFDrawContext *draw, enum AVPixelFormat format, unsigned
 flags)
 {
 ...
         /* for now, only 8-bits formats */
         if (c->depth_minus1 != 8 - 1)
             return AVERROR(ENOSYS);
 ...
 }
 }}}

 Since vf_pad is implemented using drawutils, it is not possible to pad
 10-bit images such as DPX.

 How to reproduce:
 {{{
 % ffmpeg -v debug -i my10bitfile.xxx -vf pad=x:x:x:x -f rawvideo /dev/null
 ffmpeg version 2.1.2 Copyright (c) 2000-2013 the FFmpeg developers
   built on Jan 17 2014 14:49:11 with gcc 4.6 (Ubuntu/Linaro
 4.6.3-1ubuntu5)
   configuration: --disable-doc --arch=x86 --target-os=linux --enable-
 runtime-cpudetect --disable-ffserver --disable-ffplay --disable-avdevice
 --disable-static --enable-shared --enable-libx264 --enable-libvorbis
 --enable-libfreetype --enable-libopenjpeg --enable-gpl --enable-nonfree
   libavutil      52. 48.101 / 52. 48.101
   libavcodec     55. 39.101 / 55. 39.101
   libavformat    55. 19.104 / 55. 19.104
   libavfilter     3. 90.100 /  3. 90.100
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.104 /  0. 17.104
   libpostproc    52.  3.100 / 52.  3.100
 Splitting the commandline.
 Reading option '-v' ... matched as option 'v' (set logging level) with
 argument 'debug'.
 Reading option '-i' ... matched as input file with argument
 '1015623_23976_4096_2160_primary_77011_000001.dpx'.
 Reading option '-vf' ... matched as option 'vf' (set video filters) with
 argument 'pad=5120:2160:0:0'.
 Reading option '-f' ... matched as option 'f' (force format) with argument
 'rawvideo'.
 Reading option '/dev/null' ... matched as output file.
 Finished splitting the commandline.
 Parsing a group of options: global .
 Applying option v (set logging level) with argument debug.
 Successfully parsed a group of options.
 Parsing a group of options: input file 1.dpx.
 Successfully parsed a group of options.
 Opening an input file: 1.dpx.
 [AVIOContext @ 0x89bc040] Statistics: 35391488 bytes read, 0 seeks
 [image2 @ 0x89bad80] Probe buffer size limit of 5000000 bytes reached
 Input #0, image2, from '1.dpx':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0, 1, 1/25: Video: dpx, gbrp10le, 4096x2160, 1/25, 25 tbr,
 25 tbn, 25 tbc
 Successfully opened the file.
 Parsing a group of options: output file /dev/null.
 Applying option vf (set video filters) with argument pad=5120:2160:0:0.
 Applying option f (force format) with argument rawvideo.
 Successfully parsed a group of options.
 Opening an output file: /dev/null.
 File '/dev/null' already exists. Overwrite ? [y/N] y
 Successfully opened the file.
 detected 4 logical cores
 [Parsed_pad_0 @ 0x89a95c0] Setting 'width' to value '5120'
 [Parsed_pad_0 @ 0x89a95c0] Setting 'height' to value '2160'
 [Parsed_pad_0 @ 0x89a95c0] Setting 'x' to value '0'
 [Parsed_pad_0 @ 0x89a95c0] Setting 'y' to value '0'
 [graph 0 input from stream 0:0 @ 0x89a9940] Setting 'video_size' to value
 '4096x2160'
 [graph 0 input from stream 0:0 @ 0x89a9940] Setting 'pix_fmt' to value
 '86'
 [graph 0 input from stream 0:0 @ 0x89a9940] Setting 'time_base' to value
 '1/25'
 [graph 0 input from stream 0:0 @ 0x89a9940] Setting 'pixel_aspect' to
 value '0/1'
 [graph 0 input from stream 0:0 @ 0x89a9940] Setting 'sws_param' to value
 'flags=2'
 [graph 0 input from stream 0:0 @ 0x89a9940] Setting 'frame_rate' to value
 '25/1'
 [graph 0 input from stream 0:0 @ 0x89a9940] w:4096 h:2160 pixfmt:gbrp10le
 tb:1/25 fr:25/1 sar:0/1 sws_param:flags=2
 [auto-inserted scaler 0 @ 0x89aa3e0] Setting 'flags' to value '0x4'
 [auto-inserted scaler 0 @ 0x89aa3e0] w:iw h:ih flags:'0x4' interl:0
 -> [Parsed_pad_0 @ 0x89a95c0] auto-inserting filter 'auto-inserted scaler
 0' between the filter 'graph 0 input from stream 0:0' and the filter
 'Parsed_pad_0'
 -> [AVFilterGraph @ 0x89a9080] query_formats: 3 queried, 1 merged, 1
 already done, 0 delayed
 -> [auto-inserted scaler 0 @ 0x89aa3e0] picking rgb24 out of 27
 ref:gbrp10le alpha:0
 -> [swscaler @ 0x89aefc0] Forcing full internal H chroma due to input
 having non subsampled chroma
 -> [auto-inserted scaler 0 @ 0x89aa3e0] w:4096 h:2160 fmt:gbrp10le sar:0/1
 -> w:4096 h:2160 fmt:rgb24 sar:0/1 flags:0x4
 [Parsed_pad_0 @ 0x89a95c0] w:4096 h:2160 -> w:5120 h:2160 x:0 y:0
 color:0x000000FF
 Output #0, rawvideo, to '/dev/null':
   Metadata:
     encoder         : Lavf55.19.104
     Stream #0:0, 0, 1/90000: Video: rawvideo (RGB[24] / 0x18424752),
 rgb24, 5120x2160, 1/25, q=2-31, 200 kb/s, 90k tbn, 25 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (dpx -> rawvideo)
 Press [q] to stop, [?] for help
 [output stream 0:0 @ 0x89a9b80] EOF on sink link output stream
 0:0:default.
 No more output streams to write to, finishing.
 frame=    1 fps=0.0 q=0.0 Lsize=   32400kB time=00:00:00.04
 bitrate=6635520.0kbits/s
 video:32400kB audio:0kB subtitle:0 global headers:0kB muxing overhead
 0.000000%
 1 frames successfully decoded, 0 decoding errors
 [AVIOContext @ 0x89bc5c0] Statistics: 0 seeks, 1013 writeouts

 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.


 We can pay a bounty for an appropriate fix that allows padding in high
 depth.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3343>
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