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author | Tim Malseed <t.malseed@gmail.com> | 2019-03-18 00:22:19 +1100 |
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committer | Stephen F. Booth <me@sbooth.org> | 2019-03-17 08:22:19 -0500 |
commit | 6455671ecef7014ee83e91e1fd4e1f9b93dff53a (patch) | |
tree | 4181fda717c8ca4de5b4b68d9572550ae3bd7a49 /CMakeLists.txt | |
parent | 660748210fed054e886095c75c8e9f62276f4320 (diff) |
Update mp4properties.cpp (#893)
When parsing mp4 media header version 1 (mdhd) atoms, the timescale (unit) is parsed as a `LongLong` (8 bytes), but instead should be a `UInt` (4 bytes). This results in an incorrect timescale, and also pushes the offset of the duration (length) off by 4 bytes.
The end result being that the AudioProperties track length for mp4's with mdhd v1 comes back as 0.
See: https://wiki.multimedia.cx/index.php/QuickTime_container
| Entry | Bytes (v0) | Bytes (v1) |
| :--- | :---: | :---: |
| size | 4 | 4 |
| type | 4 | 4 |
| version | 1 | 1 |
| flags | 3 | 3 |
| creation time* | 4 | **8** |
| modification time* | 4 | **8** |
| time scale | 4 | 4 |
| duration* | 4 | **8** |
| language | 2 | 2 |
| quality | 2 | 2 |
Diffstat (limited to 'CMakeLists.txt')
0 files changed, 0 insertions, 0 deletions