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README.md

mp4

wercker status

A encoder/decoder class, io.Reader and io.Writer compatible, usable for HTTP pseudo streaming

For the complete MP4 specifications, see http://standards.iso.org/ittf/PubliclyAvailableStandards/c061988_ISO_IEC_14496-12_2012.zip and http://standards.iso.org/ittf/PubliclyAvailableStandards/c061989_ISO_IEC_15444-12_2012.zip

Doc

See http://godoc.org/github.com/jfbus/mp4 and http://godoc.org/github.com/jfbus/mp4/filter

Warning

Some boxes can have multiple formats (ctts, elst, tkhd, ...). Only the version 0 of those boxes is currently decoded (see https://github.com/jfbus/mp4/issues/7). Version 1 will be supported, and this will break a few things (e.g. some uint32 attributes will switch to uint64).

CLI

A CLI can be found in cli/mp4tool.go

It can :

  • Display info about a media
mp4tool info file.mp4
  • Copy a video (decode it and reencode it to another file, useful for debugging)
mp4tool copy in.mp4 out.mp4
  • Generate a clip
mp4tool clip --start 10 --duration 30 in.mp4 out.mp4

(if you really want to generate a clip, you should use ffmpeg, you will ge better results)

LICENSE

See LICENSE

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A MP4 encoder/decoder class

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