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christianselig/ffmpeg-ios.txt

Last active September 2, 2022 17:35
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ffmpeg-ios.txt
# Convert from H264 to H265
ffmpeg -i in.mov -c:v libx265 -an -x265-params crf=20 output.mp4
# Tag as HVC instead of HEV1 so iOS can play it
ffmpeg -i output.mp4 -vcodec copy -acodec copy -tag:v hvc1 output2.mp4
# Bonus: it can take a second to play (no more than H264) so here's how to generate
# a thumbnail of the first frame to embed in your view as a placeholder.
ffmpeg -i output2.mp4 -vf "select=eq(n\,34)" -vframes 1 thumbnail.png
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