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gstreamer: memory: Fix assertions for copy_range/resize/share functions

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/-/merge_requests/1363>
This commit is contained in:
Sebastian Dröge 2023-12-10 20:18:54 +02:00
parent 33e3e25b49
commit cd30854c2b
1 changed files with 33 additions and 10 deletions
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43
gstreamer/src/memory.rs
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@ -175,12 +175,19 @@ impl MemoryRef {
unsafe { from_glib(self.0.mini_object.flags) }
}
pub fn copy_part(&self, offset: isize, size: Option<usize>) -> Memory {
let pos_sz = match size {
Some(val) => val as isize,
None => 0,
#[doc(alias = "gst_memory_copy")]
pub fn copy_range(&self, offset: isize, size: Option<usize>) -> Memory {
let new_offset = if offset < 0 {
assert!((-offset) as usize >= self.offset());
self.offset() - (-offset as usize)
} else {
self.offset()
.checked_add(offset as usize)
.expect("Too large offset")
};
assert!(offset + pos_sz < (self.maxsize() as isize));
assert!(new_offset + size.unwrap_or(0) < self.maxsize());
unsafe {
from_glib_full(ffi::gst_memory_copy(
self.as_mut_ptr(),
@ -261,11 +268,17 @@ impl MemoryRef {
#[doc(alias = "gst_memory_share")]
pub fn share(&self, offset: isize, size: Option<usize>) -> Memory {
let pos_sz = match size {
Some(val) => val as isize,
None => 0,
let new_offset = if offset < 0 {
assert!((-offset) as usize >= self.offset());
self.offset() - (-offset as usize)
} else {
self.offset()
.checked_add(offset as usize)
.expect("Too large offset")
};
assert!(offset + pos_sz < (self.maxsize() as isize));
assert!(new_offset + size.unwrap_or(0) < self.maxsize());
unsafe {
from_glib_full(ffi::gst_memory_share(
self.as_ptr() as *mut _,
@ -280,7 +293,17 @@ impl MemoryRef {
#[doc(alias = "gst_memory_resize")]
pub fn resize(&mut self, offset: isize, size: usize) {
assert!(offset + (size as isize) < (self.maxsize() as isize));
let new_offset = if offset < 0 {
assert!((-offset) as usize >= self.offset());
self.offset() - (-offset as usize)
} else {
self.offset()
.checked_add(offset as usize)
.expect("Too large offset")
};
assert!(new_offset + size < self.maxsize());
unsafe { ffi::gst_memory_resize(self.as_mut_ptr(), offset, size) }
}