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| author | Jesús <heckyel@hyperbola.info> | 2022-12-02 05:21:10 +0800 |
|---|---|---|
| committer | Jesús <heckyel@hyperbola.info> | 2022-12-02 05:21:10 +0800 |
| commit | eaeeef9c1d1bedb76fea953c332ef84d53bffe2c (patch) | |
| tree | c3cb5582247e47fc67c24cd7ff8ea857fb76821e /hypervideo_dl/compat/imghdr.py | |
| parent | 1e5a50b71d8f0eae6007bedc329eecb24bb5aba3 (diff) | |
| download | hypervideo-eaeeef9c1d1bedb76fea953c332ef84d53bffe2c.tar.lz hypervideo-eaeeef9c1d1bedb76fea953c332ef84d53bffe2c.tar.xz hypervideo-eaeeef9c1d1bedb76fea953c332ef84d53bffe2c.zip | |
update from upstream
Diffstat (limited to 'hypervideo_dl/compat/imghdr.py')
| -rw-r--r-- | hypervideo_dl/compat/imghdr.py | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/hypervideo_dl/compat/imghdr.py b/hypervideo_dl/compat/imghdr.py new file mode 100644 index 0000000..5d64ab0 --- /dev/null +++ b/hypervideo_dl/compat/imghdr.py @@ -0,0 +1,16 @@ +tests = { + 'webp': lambda h: h[0:4] == b'RIFF' and h[8:] == b'WEBP', + 'png': lambda h: h[:8] == b'\211PNG\r\n\032\n', + 'jpeg': lambda h: h[6:10] in (b'JFIF', b'Exif'), + 'gif': lambda h: h[:6] in (b'GIF87a', b'GIF89a'), +} + + +def what(file=None, h=None): + """Detect format of image (Currently supports jpeg, png, webp, gif only) + Ref: https://github.com/python/cpython/blob/3.10/Lib/imghdr.py + """ + if h is None: + with open(file, 'rb') as f: + h = f.read(12) + return next((type_ for type_, test in tests.items() if test(h)), None) |