[FFmpeg-trac] #1139(avfilter:new): 'fade' filter initial color is not black!

[FFmpeg]

#1139: 'fade' filter initial color is not black!
--------------------------------+------------------------------------
             Reporter:  ssp43   |                    Owner:
                 Type:  defect  |                   Status:  new
             Priority:  normal  |                Component:  avfilter
              Version:  0.10    |               Resolution:
             Keywords:  fade    |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
--------------------------------+------------------------------------

Comment (by ssp43):

 The color is the same - - dark gray!


 {{{
 user at tux:> ffmpeg -loop 1 -f image2 -r 24000/1001 -i any_picture.png -r
 24000/1001 -vframes 3168 -vf "fade=in:65:48,fade=out:3120:48" -f
 yuv4mpegpipe -pix_fmt yuv420p -y any.file
 ffmpeg version N-39360-g7a5e587 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Mar 28 2012 15:45:52 with gcc 4.5.1 20101208 [gcc-4_5-branch
 revision 167585]
   configuration: --shlibdir=/usr/lib64 --prefix=/usr
 --mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-
 static --enable-debug --disable-stripping --extra-cflags='-fmessage-
 length=0 -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
 -fasynchronous-unwind-tables -g -fPIC -I/usr/include/gsm' --enable-gpl
 --enable-x11grab --enable-version3 --enable-pthreads --enable-avfilter
 --enable-libvpx --enable-libmp3lame --enable-libvorbis --enable-libtheora
 --enable-libspeex --enable-libxvid --enable-libx264 --enable-
 libschroedinger --enable-libdirac --enable-libgsm --enable-libopencore-
 amrnb --enable-libopencore-amrwb --enable-postproc --enable-libdc1394
 --enable-librtmp --enable-libfreetype
   libavutil      51. 44.100 / 51. 44.100
   libavcodec     54. 12.100 / 54. 12.100
   libavformat    54.  3.100 / 54.  3.100
   libavdevice    53.  4.100 / 53.  4.100
   libavfilter     2. 66.100 /  2. 66.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 10.100 /  0. 10.100
   libpostproc    52.  0.100 / 52.  0.100
 Input #0, image2, from 'any_picture.png':
   Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
     Stream #0:0: Video: png, rgba, 236x1080, 23.98 fps, 23.98 tbr, 23.98
 tbn, 23.98 tbc
 [buffer @ 0x631020] w:236 h:1080 pixfmt:rgba tb:1/1000000 sar:0/1
 sws_param:
 [fade @ 0x62bbe0] type:in start_frame:65 nb_frames:48 alpha:0
 [fade @ 0x62c740] type:out start_frame:3120 nb_frames:48 alpha:0
 [fade @ 0x62c740] auto-inserting filter 'auto-inserted scale 0' between
 the filter 'Parsed_fade_0' and the filter 'Parsed_fade_1'
 [scale @ 0x62da40] w:236 h:1080 fmt:rgba sar:0/1 -> w:236 h:1080
 fmt:yuv420p sar:0/1 flags:0x4
 Output #0, yuv4mpegpipe, to 'any.file':
   Metadata:
     encoder         : Lavf54.3.100
     Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 236x1080,
 q=2-31, 200 kb/s, 90k tbn, 23.98 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (png -> rawvideo)
 Press [q] to stop, [?] for help
 [yuv4mpegpipe @ 0x630860] Encoder did not produce proper pts, making some
 up.
 frame= 3168 fps= 56 q=0.0 Lsize= 1182821kB time=00:02:12.13
 bitrate=73333.3kbits/s dup=0 drop=1
 video:0kB audio:0kB global headers:0kB muxing overhead inf%
 Output file is empty, nothing was encoded (check -ss / -t / -frames
 parameters if used)

 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1139#comment:8>
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