lavfi/perspective: Add basic timeline editing

Multimedia / FFmpeg - Thilo Borgmann [mail.de] - 17 April 2016 14:12 UTC

Add number of input and output frames to possible variables. Add option eval to reevaluate coordinate expressions during initialization or for every frame.

37a4d33 lavfi/perspective: Add basic timeline editing.
doc/filters.texi | 19 ++++++++++
libavfilter/vf_perspective.c | 82 ++++++++++++++++++++++++++++++------------
2 files changed, 78 insertions(+), 23 deletions(-)

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