time_id3 metadata is not properly copied

[Carlos Salazar]

When trying to map and copy time_id3 metadata from a .ts file to a .ts file, the time_id3 metadata is copied (e.g PRIV tags) but the ID3 header is not inserted (0x49 0x44 0x33).

ID3v2 header

The first part of the ID3v2 tag is the 10 byte tag header, laid out
as follows:

ID3v2/file identifier "ID3"
ID3v2 version $04 00
ID3v2 flags %abcd0000
ID3v2 size 4 * %0xxxxxxx

​https://id3.org/id3v2.4.0-structure

% ffmpeg -i 3.ts -map 0:a -c:a copy -map 0:v -c:v copy -map 0:d -c:d copy  -f mpegts  3b.ts
ffmpeg version N-104633-g0e22d2e59b
built with Apple clang version 12.0.0

[Carlos Salazar]

Source TS file