Complete TrueHD DSI parsing when muxing to MP4

[MingxinChen]

Complete TrueHD DSI parsing when creating the MP4 TrueHD sample entry.

The format field is 4 bytes and the peak data rate field is 2 bytes. The previous implementation read these fields from incorrect offsets. This change fixes TrueHD metadata generation during MP4 muxing.

Testsuite PR: gpac/testsuite#72

[gpac-buildbot]

Buildbot test results for revision: 26.08-DEV-rev44-g1e020edf-truehd-fix

❌ Tests failing on all platforms only on this branch:

test	result
inspect-counter_english	inspect-unframer:HashFail
mp4box-io-counter_english.mlp	mp4-inspect:HashFail diso:HashFail add:HashFail
mp4box-io-truehd_ac3h.mlp	mp4-inspect:HashFail diso:HashFail add:HashFail

As an indication here is the number of test fails by OS. A few random fails are excepted, however a big spike in numbers can warrant further investigation:

builder	linux64	linux32	win64	win32	macos
fails	4	8	7	12	3

• see full diff with master here
• see full test results here

Please also make sure that the github checks below are not reporting any build issue.

[MingxinChen]

Hi @aureliendavid , I've submitted a new testsuite PR #74 to fix the failing test cases caught by the changes in the value of format/peak_data_rate. Please take a look when you get a chance — happy to make any adjustments if needed.

[aureliendavid]

/buildbot-rebuild

[gpac-buildbot]

Buildbot test results for revision: 26.08-DEV-rev44-g1e020edf-truehd-fix

✅ No obvious regression from master, check the links below for full results

As an indication here is the number of test fails by OS. A few random fails are excepted, however a big spike in numbers can warrant further investigation:

builder	linux64	linux32	win64	win32	macos
fails	1	3	5	7	1

• see full diff with master here
• see full test results here

Please also make sure that the github checks below are not reporting any build issue.

[aureliendavid]

(note: I have not reviewed the changes to either the code or the hashes, I'll leave this to others, I just made the tests run)

[rbouqueau]

LGTM, merging. Thank you @MingxinChen !