[FFmpeg-user] Setting color is strange showvolume filter

[Paul B Mahol]

Dana 2. 7. 2015. 17:44 osoba "nicolab" <robelt2525 at gmail.com> napisala je:
>
> Setting color RGB(0xffffff), Green is fine, but Red, Blue is reversed?

It is in aabbggrr format because its calculated from expression.

>
> example
> ffplay -f lavfi aevalsrc="sin(440*2*PI*t):s=8000,showvolume=c=0x00ff00"
> color is 0x00ff00
>
> ffplay -f lavfi aevalsrc="sin(440*2*PI*t):s=8000,showvolume=c=0xff0000"
> color is 0x0000ff, not 0xff0000
>
> ffplay version N-73361-g03b2b40 Copyright (c) 2003-2015 the FFmpeg
> developers
>   built with gcc 4.9.2 (GCC)
>   configuration: --enable-gpl --enable-version3 --disable-w32threads
> --enable-av
> isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
> --enab
> le-iconv --enable-libass --enable-libbluray --enable-libbs2b
> --enable-libcaca --
> enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm
> --enable-l
> ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
> --enab
> le-libopencore-amrwb --enable-libopenjpeg --enable-libopus
--enable-librtmp
> --en
> able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
> --ena
> ble-libtwolame --enable-libvidstab --enable-libvo-aacenc
> --enable-libvo-amrwbenc
>  --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
> --enabl
> e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma
> --ena
> ble-decklink --enable-zlib
>   libavutil      54. 27.100 / 54. 27.100
>   libavcodec     56. 46.100 / 56. 46.100
>   libavformat    56. 40.100 / 56. 40.100
>   libavdevice    56.  4.100 / 56.  4.100
>   libavfilter     5. 19.100 /  5. 19.100
>   libswscale      3.  1.101 /  3.  1.101
>   libswresample   1.  2.100 /  1.  2.100
>   libpostproc    53.  3.100 / 53.  3.100
> Input #0, lavfi, from
> 'aevalsrc=sin(440*2*PI*t):s=8000,showvolume=c=0xff0000':
>   Duration: N/A, start: 0.000000, bitrate: N/A
>     Stream #0:0: Video: rawvideo (RGBA / 0x41424752), rgba, 400x20 [SAR
1:1
> DAR
> 20:1], 7.81 fps, 7.81 tbr, 8k tbn, 8k tbc
>    0.51 M-V:  0.000 fd=   0 aq=    0KB vq=  188KB sq=    0B f=0/0
>
> ffplay -f lavfi aevalsrc="sin(440*2*PI*t):s=8000,showvolume=c=0x0000ff"
> color is 0xff0000, not 0x0000ff
>
>
>
> -----
> https://twitter.com/nico_lab
> http://nico-lab.net/
> --
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