Hi, http://ffmpeg.org/ffmpeg-filters.html
I want to use some filter to produce one specified yuv/rgb image, and render text on that image via drawtext filter later in filter graph. Then run the filter graph, and get text_h and text_w from 'ff_vf_drawtext'. which filter is used to produce fake yuv/rgb image in ffmpeg? Is there some efficient way to get the values of text_h and text_w? Thanks! B.R. Andrew
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