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Merge pull request #91 from soundappraisal/master

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Fix #51: Only return valid part of the buffer in the read function
This commit is contained in:
Lars Immisch
2020-10-27 12:47:36 +01:00
committed by GitHub
parent 0ae60f80f3 5c481b4094
commit d037297632
1 changed files with 9 additions and 4 deletions
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alsaaudio.c
+9 -4
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@@ -1051,6 +1051,7 @@ alsapcm_read(alsapcm_t *self, PyObject *args)
{
int res;
int size = self->framesize * self->periodsize;
int sizeout = 0;
PyObject *buffer_obj, *tuple_obj, *res_obj;
char *buffer;
@@ -1105,18 +1106,22 @@ alsapcm_read(alsapcm_t *self, PyObject *args)
}
}
if (res <= 0) {
if (res > 0 ) {
sizeout = res * self->framesize;
}
if (size != sizeout) {
#if PY_MAJOR_VERSION < 3
/* If the following fails, it will free the object */
if (_PyString_Resize(&buffer_obj, 0))
if (_PyString_Resize(&buffer_obj, sizeout))
return NULL;
#else
/* If the following fails, it will free the object */
if (_PyBytes_Resize(&buffer_obj, 0))
if (_PyBytes_Resize(&buffer_obj, sizeout))
return NULL;
#endif
}
res_obj = PyLong_FromLong(res);
if (!res_obj) {
Py_DECREF(buffer_obj);