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While this is not always optimal, in practice most of the common cases are. ffmpeg -i big_buck_bunny_1080p_h264.mov -ss 45 -vf scale=320:160 -gifflags -transdiff -frames:v 50 -y bbb-notrans.gif ffmpeg -i big_buck_bunny_1080p_h264.mov -ss 45 -vf scale=320:160 -gifflags +transdiff -frames:v 50 -y bbb-trans.gif -rw-r--r-- 1 ubitux ubitux 1.1M Apr 19 19:00 bbb-notrans.gif -rw-r--r-- 1 ubitux ubitux 378K Apr 19 19:00 bbb-trans.gif
FFmpeg README ------------- 1) Documentation ---------------- * Read the documentation in the doc/ directory in git. You can also view it online at http://ffmpeg.org/documentation.html 2) Licensing ------------ * See the LICENSE file. 3) Build and Install -------------------- * See the INSTALL file.