[FFmpeg-user] --enable-filter=drawtext ignored?

Reindl Harald h.reindl at thelounge.net
Sat Apr 2 14:06:40 CEST 2011

"--enable-filter=drawtext" seems to be ignored or
do i understand something wrong?

anull            Pass the source unchanged to the output.
anullsrc         Null audio source, never return audio frames.
anullsink        Do absolutely nothing with the input audio.
blackframe       Detect frames that are (almost) black.
copy             Copy the input video unchanged to the output.
crop             Crop the input video to width:height:x:y.
cropdetect       Auto-detect crop size.
drawbox          Draw a colored box on the input video.
fade             Fade in/out input video
fifo             Buffer input images and send them when they are requested.
format           Convert the input video to one of the specified pixel formats.
gradfun          Debands video quickly using gradients.
hflip            Horizontally flip the input video.
hqdn3d           Apply a High Quality 3D Denoiser.
mp               libmpcodecs wrapper.
noformat         Force libavfilter not to use any of the specified pixel formats for the input to the next filter.
null             Pass the source unchanged to the output.
ocv              Apply transform using libopencv.
overlay          Overlay a video source on top of the input.
pad              Pad input image to width:height[:x:y[:color]] (default x and y: 0, default color: black).
pixdesctest      Test pixel format definitions.
scale            Scale the input video to width:height size and/or convert the image format.
setdar           Set the frame display aspect ratio.
setpts           Set PTS for the output video frame.
setsar           Set the pixel sample aspect ratio.
settb            Set timebase for the output link.
slicify          Pass the images of input video on to next video filter as multiple slices.
transpose        Transpose input video.
unsharp          Sharpen or blur the input video.
vflip            Flip the input video vertically.
yadif            Deinterlace the input image
buffer           Buffer video frames, and make them accessible to the filterchain.
color            Provide an uniformly colored input, syntax is: [color[:size[:rate]]]
movie            Read from a movie source.
nullsrc          Null video source, never return images.
nullsink         Do absolutely nothing with the input video

FFmpeg version git-N-28755-g7ac1674, Copyright (c) 2000-2011 the FFmpeg developers
  built on Apr  2 2011 13:58:11 with gcc 4.5.1 20100924 (Red Hat 4.5.1-4)
  configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
--libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --extra-cflags='-O6 -march=core2 -mtune=core2 -mmmx
-msse2 -msse3 -msse4.1 -fopenmp -mfpmath=sse -fno-delete-null-pointer-checks -fstack-protector -pipe
-D_FORTIFY_SOURCE=2' --extra-version=thelounge.net --enable-nonfree --enable-gpl --enable-version3
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-version3 --enable-libdc1394 --enable-libdirac
--enable-libfaac --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libschroedinger
--enable-libspeex --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-libvpx
--enable-librtmp --enable-vdpau --enable-x11grab --enable-avfilter --enable-postproc --enable-swscale
--enable-bzlib --enable-zlib --enable-pthreads --enable-fastdiv --enable-pic --enable-libopencv
--enable-bsf=aac_adtstoasc --enable-bsf=chomp --enable-bsf=dump_extradata --enable-bsf=h264_mp4toannexb
--enable-bsf=imx_dump_header --enable-bsf=mjpeg2jpeg --enable-bsf=mjpegadump --enable-bsf=mov2textsub
--enable-bsf=mp3comp --enable-bsf=mp3decomp --enable-bsf=noise --enable-bsf=remove_extra --enable-bsf=text2movsub
--enable-filter=anull --enable-filter=anullsink --enable-filter=anullsrc --enable-filter=blackframe
--enable-filter=buffer --enable-filter=color --enable-filter=copy --enable-filter=crop --enable-filter=cropdetect
--enable-filter=drawbox --enable-filter=drawtext --enable-filter=fade --enable-filter=fifo --enable-filter=format
--enable-filter=gradfun --enable-filter=hflip --enable-filter=hqdn3d --enable-filter=movie --enable-filter=mp
--enable-filter=noformat --enable-filter=null --enable-filter=nullsink --enable-filter=nullsrc --enable-filter=ocv
--enable-filter=overlay --enable-filter=pad --enable-filter=pixdesctest --enable-filter=scale
--enable-filter=setdar --enable-filter=setpts --enable-filter=setsar --enable-filter=settb --enable-filter=slicify
--enable-filter=transpose --enable-filter=unsharp --enable-filter=vflip --enable-filter=yadif --enable-shared
--disable-static --disable-debug --disable-stripping --shlibdir=/usr/lib64 --cpu=core2 --enable-runtime-cpudetect
  libavutil    50. 40. 0 / 50. 40. 0
  libavcodec   52.116. 0 / 52.116. 0
  libavformat  52.104. 0 / 52.104. 0
  libavdevice  52.  4. 0 / 52.  4. 0
  libavfilter   1. 76. 0 /  1. 76. 0
  libswscale    0. 13. 0 /  0. 13. 0
  libpostproc  51.  2. 0 / 51.  2. 0

2 hours ago
	Stefano Sabatini	drawtext: extend/clarify examples in the filter description  master
	commit | commitdiff | tree | snapshot

2 hours ago
	Stefano Sabatini	drawtext: fix wrong reference in boxcolor option descri...
	commit | commitdiff | tree | snapshot

2 hours ago
	Stefano Sabatini	drawtext: add documentation for the shadow parameters
	commit | commitdiff | tree | snapshot

2 hours ago
	Stefano Sabatini	drawtext: allow negative shadow offset values

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