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| author | Ting Fu <ting.fu@intel.com> | 2021-05-14 16:47:02 +0800 |
|---|---|---|
| committer | Guo Yejun <yejun.guo@intel.com> | 2021-05-26 08:58:27 +0800 |
| commit | 7a879cce3793a1314ce50cef4b75671f5e0c0219 (patch) | |
| tree | adbf5fcf6806390ec07dacbc522df159fcd0d212 /doc | |
| parent | f444be643e50540843dd630e539aa00f737907c7 (diff) | |
libavfilter: vf_drawtext filter support draw text with detection bounding boxes in side_data
This feature can be used with dnn detection by setting vf_drawtext's option
text_source=side_data_detection_bboxes, for example:
./ffmpeg -i face.jpeg -vf dnn_detect=dnn_backend=openvino:model=face-detection-adas-0001.xml:\
input=data:output=detection_out:labels=face-detection-adas-0001.label,drawbox=box_source=
side_data_detection_bboxes,drawtext=text_source=side_data_detection_bboxes:fontcolor=green:\
fontsize=40, -y face_detect.jpeg
Please note, the default fontsize of vf_drawtext is 12, which may be too
small to be seen clearly.
Signed-off-by: Ting Fu <ting.fu@intel.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/filters.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index adb9d068e9..78faf767cf 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -10788,6 +10788,14 @@ parameter @var{text}. If both @var{text} and @var{textfile} are specified, an error is thrown. +@item text_source +Text source should be set as side_data_detection_bboxes if you want to use text data in +detection bboxes of side data. + +If text source is set, @var{text} and @var{textfile} will be ignored and still use +text data in detection bboxes of side data. So please do not use this parameter +if you are not sure about the text source. + @item reload If set to 1, the @var{textfile} will be reloaded before each frame. Be sure to update it atomically, or it may be read partially, or even fail. |