* feat: mvex box中的mehd box改为可选，支持fmp4的解析
* feat: example/mp4sample supports fragmented mp4
* feat: utilize function sample_count(), extract duplicated codes as a new function
* feat: field data_offset in TrunBox is optional
* feat: remove an ".expect()"
* feat: remove an ".expect()"
* chore: re-style code
* feat: mvex box中的mehd box改为可选，支持fmp4的解析
* feat: support to copy mp4 with vp9 codec, but not support to copy fmp4 with vp9 codec
* Update types.rs
undo unnecessary changes.
* Update types.rs
undo reduce unnecessary changes.
* Update types.rs
* Update mp4copy.rs
Add vp9 code after h265
* Update stsd.rs
Add vp09 after the Hevc
* Update types.rs
Add after the HevcConfig.
* fix: Track.rs add vp9 support
* feat: mp4 writer set vp09 box into stsd box
* Add Mp4Box traits for getting json or text summary for each box.
* fix test and serde version.
* skip serializing entries
* skip serializing sample_sizes
* Add custom serializer for FixedPoint types.
* Make EsdsBox in Mp4aBox optional, instead of error when parsing. Also update mp4info example with some missing info that was removed.
* Update Mp4aBox test to check for optional EsdsBox.
* Add ReadBox trait
* Add boxtype macro
* Remove offset in BoxHeader
* Fix parsing error when box has largesize
* Remove duplicated codes reading version and flags
* Update examples
* Fix test failure
* Rename I/O position moving functions
* skip_read() to skip_bytes()
* skip_read_to() to skip_bytes_to()
* skip_write() to write_zeros()
* Rename I/O position moving functions
* skip_read() to skip_bytes()
* skip_read_to() to skip_bytes_to()
* Ensure skip_bytes() does not go back.
Co-authored-by: Byungwan Jun <unipro.kr@gmail.com>
* Add ReadBox trait
* Add boxtype macro
* Remove offset in BoxHeader
* Fix parsing error when box has largesize
* Remove duplicated codes reading version and flags
* Add test code for all leaves in box tree
* Remove entry_count that is duplacated with entries.len()
* Change volume type to Ratio<u16>
Co-authored-by: Byungwan Jun <unipro.kr@gmail.com>
* Add ReadBox trait
* Add boxtype macro
* Remove offset in BoxHeader
* Fix parsing error when box has largesize
* Remove duplicated codes reading version and flags
* Simplify all box size types as largesize
* Add WriteBox trait and improve compatibility with large box
* Split large atoms file into smaller ones
* Refator Error
Co-authored-by: Byungwan Jun <unipro.kr@gmail.com>
* Skip over unknown boxes
If the box size is non-zero, skip over it and continue reading. Otherwise if
the box size is zero, exit the loop.
* Add comment clarifying the box skipping
