Method copy_from_linear_buffer

rustcv-backend-msmf/src/stream.rs:428–442

Copies frame data from a linear/contiguous buffer.

(
        &mut self,
        buffer: &windows::Win32::Media::MediaFoundation::IMFMediaBuffer,
    )

    /// Copies frame data from a linear/contiguous buffer.
    unsafe fn copy_from_linear_buffer(
        &mut self,
        buffer: &windows::Win32::Media::MediaFoundation::IMFMediaBuffer,
    ) -> Result<()> {
        let (mut ptr, mut len) = (std::ptr::null_mut(), 0);
        buffer
            .Lock(&mut ptr, None, Some(&mut len))
            .map_err(win_err)?;

        let copy_len = (len as usize).min(self.linear_buffer.len());
        std::ptr::copy_nonoverlapping(ptr, self.linear_buffer.as_mut_ptr(), copy_len);

        let _ = buffer.Unlock();
        Ok(())
    }

    /// Returns a clone of the source reader for control interfaces.
    pub fn get_reader(&self) -> SendableSourceReader {