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Ran 07 Aug 2018 08:05PM UTC

Files 37

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Committed 07 Aug 2018 07:53PM UTC coverage: 52.276% (-0.03%) from 52.303%

Job # TARGET=travis

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push

travis-ci

Committed by

yihui

Commit Message

Add flags to ffmpeg mp4 hook for Safari support (#1586)

With the current ffmpeg mp4 converter setup in knitr in-line
animation, I was not able to have my animations show up in
Safari. After adding the flags in this commit, it worked.

https://apple.stackexchange.com/questions/166553/why-wont-video-from-ffmpeg-show-in-quicktime-imovie-or-quick-preview

I found the Safari viewability to be sensitive to exactly where
the flags were placed. For instance, running

ffmpeg -y -r 1 -pix_fmt yuv420p -i foo-%d.png foo.mp4

did not work, otherwise I would consider aliasing my ffmpeg
command. It turned out to be necessary to include the -i flag
first, as so:

ffmpeg -y -r 1 -i foo-%d.png -pix_fmt yuv420p foo.mp4

Run Details

1987 of 3801 relevant lines covered (52.28%)

78.5 hits per line

yihui / knitr / 1221 / 1
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