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gstreamer/pad: Add get_range_fill() and pull_range_fill() functions
These allow providing an already allocated, writable buffer. Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer-rs/issues/242
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1 changed files with 72 additions and 0 deletions
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@ -128,7 +128,19 @@ pub trait PadExtManual: 'static {
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fn push_list(&self, list: BufferList) -> Result<FlowSuccess, FlowError>;
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fn pull_range(&self, offset: u64, size: u32) -> Result<Buffer, FlowError>;
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fn pull_range_fill(
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&self,
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offset: u64,
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buffer: &mut ::BufferRef,
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size: u32,
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) -> Result<(), FlowError>;
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fn get_range(&self, offset: u64, size: u32) -> Result<Buffer, FlowError>;
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fn get_range_fill(
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&self,
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offset: u64,
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buffer: &mut ::BufferRef,
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size: u32,
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) -> Result<(), FlowError>;
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fn peer_query(&self, query: &mut QueryRef) -> bool;
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fn query(&self, query: &mut QueryRef) -> bool;
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@ -351,6 +363,36 @@ impl<O: IsA<Pad>> PadExtManual for O {
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}
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}
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fn get_range_fill(
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&self,
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offset: u64,
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buffer: &mut ::BufferRef,
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size: u32,
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) -> Result<(), FlowError> {
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assert!(buffer.get_size() >= size as usize);
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unsafe {
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let mut buffer_ref = buffer.as_mut_ptr();
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let ret: FlowReturn = from_glib(gst_sys::gst_pad_get_range(
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self.as_ref().to_glib_none().0,
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offset,
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size,
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&mut buffer_ref,
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));
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match ret.into_result_value(|| ()) {
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Ok(_) => {
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if buffer.as_mut_ptr() != buffer_ref {
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gst_sys::gst_mini_object_unref(buffer_ref as *mut _);
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Err(::FlowError::Error)
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} else {
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Ok(())
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}
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}
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Err(err) => Err(err),
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}
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}
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}
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fn pull_range(&self, offset: u64, size: u32) -> Result<Buffer, FlowError> {
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unsafe {
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let mut buffer = ptr::null_mut();
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@ -364,6 +406,36 @@ impl<O: IsA<Pad>> PadExtManual for O {
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}
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}
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fn pull_range_fill(
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&self,
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offset: u64,
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buffer: &mut ::BufferRef,
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size: u32,
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) -> Result<(), FlowError> {
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assert!(buffer.get_size() >= size as usize);
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unsafe {
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let mut buffer_ref = buffer.as_mut_ptr();
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let ret: FlowReturn = from_glib(gst_sys::gst_pad_pull_range(
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self.as_ref().to_glib_none().0,
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offset,
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size,
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&mut buffer_ref,
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));
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match ret.into_result_value(|| ()) {
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Ok(_) => {
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if buffer.as_mut_ptr() != buffer_ref {
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gst_sys::gst_mini_object_unref(buffer_ref as *mut _);
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Err(::FlowError::Error)
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} else {
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Ok(())
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}
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}
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Err(err) => Err(err),
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}
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}
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}
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fn query(&self, query: &mut QueryRef) -> bool {
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unsafe {
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from_glib(gst_sys::gst_pad_query(
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