refactor: mp4

[lennartkloock]

This splits the original scuffle-mp4 crate into multiple crates:

• A new crate called isobmff which contains everything described by ISO/IEC 14496-12
• scuffle-h264 now contains the AVC boxes described by ISO/IEC 14496-15
• scuffle-h265 now contains the HEVC boxes described by ISO/IEC 14496-15
• scuffle-av1 now contains the AV1 boxes described by AV1 Codec ISO Media File Format Binding
• A new crated called scuffle-opus which contains the Opus boxes described by Encapsulation of Opus in ISO Base Media File Format
• The original scuffle-mp4 crate now only contains the actual MP4 boxes (not ISOBMFF) described by ISO/IEC 14496-14

Other changes:

• New derive macro to derive the new isobmff::IsoBox, zero-copy Deserialize and zero-copy Serialize traits

Note for reviewers: isobmff::boxes contains a lot of code that can only be reviewed by going through the spec step by step. Maybe start with other modules first.

CLOUD-31 CLOUD-88

[codecov[bot]]

Codecov Report

:x: Patch coverage is 61.23135% with 1845 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 57.17%. Comparing base (6cafac7) to head (ee540e2).

Files with missing lines	Patch %	Lines
crates/isobmff/src/boxes/file_delivery_format.rs	0.00%	359 Missing :warning:
crates/isobmff/src/boxes/audio_media.rs	17.33%	267 Missing :warning:
crates/isobmff/src/boxes/sample_group.rs	40.24%	199 Missing :warning:
crates/isobmff/src/boxes/sample_groups.rs	52.63%	162 Missing :warning:
crates/isobmff/src/boxes/metadata.rs	73.73%	161 Missing :warning:
crates/isobmff/src/boxes/video_media.rs	36.48%	141 Missing :warning:
crates/isobmff/src/boxes/movie_fragments.rs	85.22%	94 Missing :warning:
crates/bytes-util/src/zero_copy/serde.rs	48.17%	71 Missing :warning:
crates/isobmff/src/common_types.rs	41.66%	70 Missing :warning:
...tes/isobmff/src/boxes/post_decoder_requirements.rs	0.00%	55 Missing :warning:
... and 21 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #442      +/-   ##
==========================================
- Coverage   61.48%   57.17%   -4.31%     
==========================================
  Files         385      359      -26     
  Lines       31171    30376     -795     
==========================================
- Hits        19165    17368    -1797     
- Misses      12006    13008    +1002     

Files with missing lines	Coverage Δ
crates/av1/src/boxes.rs	100.00% <100.00%> (ø)
crates/bytes-util/src/bit_write.rs	100.00% <ø> (ø)
crates/ffmpeg/src/encoder.rs	97.26% <ø> (ø)
crates/ffmpeg/src/io/output.rs	88.12% <ø> (ø)
crates/flv/src/video.rs	100.00% <ø> (ø)
crates/flv/src/video/body.rs	100.00% <ø> (ø)
crates/flv/src/video/body/legacy.rs	100.00% <100.00%> (ø)
crates/h264/src/boxes.rs	100.00% <100.00%> (ø)
crates/h264/src/config.rs	100.00% <100.00%> (ø)
crates/h264/src/sps/sps_ext.rs	100.00% <ø> (ø)
... and 42 more

... and 58 files with indirect coverage changes

Components	Coverage Δ
scuffle-aac	89.47% <ø> (ø)
scuffle-amf0	90.31% <ø> (ø)
scuffle-av1	96.70% <76.92%> (-1.71%)	:arrow_down:
scuffle-batching	100.00% <ø> (ø)
scuffle-bootstrap	82.91% <ø> (ø)
scuffle-bytes-util	84.72% <63.69%> (-11.99%)	:arrow_down:
scuffle-context	100.00% <ø> (ø)
scuffle-expgolomb	100.00% <ø> (ø)
scuffle-ffmpeg	90.00% <ø> (ø)
scuffle-flv	95.23% <60.00%> (-0.36%)	:arrow_down:
scuffle-future-ext	50.00% <ø> (ø)
scuffle-h264	99.68% <100.00%> (+<0.01%)	:arrow_up:
scuffle-h265	73.53% <100.00%> (+0.11%)	:arrow_up:
scuffle-http	86.45% <ø> (-0.10%)	:arrow_down:
isobmff	60.93% <60.11%> (∅)
scuffle-metrics	95.02% <ø> (ø)
scuffle-mp4	25.96% <ø> (-51.53%)	:arrow_down:
nutype-enum	∅ <ø> (∅)
scuffle-opus	0.00% <ø> (∅)
postcompile	44.24% <ø> (ø)
scuffle-pprof	100.00% <ø> (ø)
scuffle-rtmp	89.95% <ø> (-0.94%)	:arrow_down:
scuffle-settings	99.11% <ø> (ø)
scuffle-signal	95.41% <ø> (ø)
scuffle-transmuxer	94.65% <ø> (-0.37%)	:arrow_down:
tinc	46.94% <ø> (ø)
openapiv3_1	49.74% <ø> (ø)

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[vrtgs]

consider nbyte-int (or on crates.io) for the u24/u48 integers, please open issues on any functionality you may need I will try to help