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Merge pull request #7782 from evanmiller/webp-get-next-without-gil

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Release GIL while calling `WebPAnimDecoderGetNext`
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Andrew Murray 2024-02-22 21:50:41 +11:00 committed by GitHub
commit f8a54b78a3
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2 changed files with 12 additions and 1 deletions
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6
docs/releasenotes/10.3.0.rst
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@ -79,3 +79,9 @@ Portable FloatMap (PFM) images
Support has been added for reading and writing grayscale (Pf format)
Portable FloatMap (PFM) files containing ``F`` data.
Release GIL when fetching WebP frames
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Python's Global Interpreter Lock is now released when fetching WebP frames from
the libwebp decoder.

7
src/_webp.c
View File

@ -448,11 +448,16 @@ PyObject *
_anim_decoder_get_next(PyObject *self) {
uint8_t *buf;
int timestamp;
int ok;
PyObject *bytes;
PyObject *ret;
ImagingSectionCookie cookie;
WebPAnimDecoderObject *decp = (WebPAnimDecoderObject *)self;
if (!WebPAnimDecoderGetNext(decp->dec, &buf, &timestamp)) {
ImagingSectionEnter(&cookie);
ok = WebPAnimDecoderGetNext(decp->dec, &buf, &timestamp);
ImagingSectionLeave(&cookie);
if (!ok) {
PyErr_SetString(PyExc_OSError, "failed to read next frame");
return NULL;
}