[−][src]Enum ffmpeg_sys_next::AVDevToAppMessageType
Message types used by avdevice_dev_to_app_control_message().
Variants
Dummy message.
Create window buffer message.
Device requests to create a window buffer. Exact meaning is device- and application-dependent. Message is sent before rendering first frame and all one-shot initializations should be done here. Application is allowed to ignore preferred window buffer size.
@note: Application is obligated to inform about window buffer size with AV_APP_TO_DEV_WINDOW_SIZE message.
data: AVDeviceRect: preferred size of the window buffer. NULL: no preferred size of the window buffer.
Prepare window buffer message.
Device requests to prepare a window buffer for rendering. Exact meaning is device- and application-dependent. Message is sent before rendering of each frame.
data: NULL.
Display window buffer message.
Device requests to display a window buffer. Message is sent when new frame is ready to be displayed. Usually buffers need to be swapped in handler of this message.
data: NULL.
Destroy window buffer message.
Device requests to destroy a window buffer. Message is sent when device is about to be destroyed and window buffer is not required anymore.
data: NULL.
Buffer fullness status messages.
Device signals buffer overflow/underflow.
data: NULL.
Buffer fullness status messages.
Device signals buffer overflow/underflow.
data: NULL.
Buffer readable/writable.
Device informs that buffer is readable/writable. When possible, device informs how many bytes can be read/write.
@warning Device may not inform when number of bytes than can be read/write changes.
data: int64_t: amount of bytes available to read/write. NULL: amount of bytes available to read/write is not known.
Buffer readable/writable.
Device informs that buffer is readable/writable. When possible, device informs how many bytes can be read/write.
@warning Device may not inform when number of bytes than can be read/write changes.
data: int64_t: amount of bytes available to read/write. NULL: amount of bytes available to read/write is not known.
Mute state change message.
Device informs that mute state has changed.
data: int: 0 for not muted state, non-zero for muted state.
Volume level change message.
Device informs that volume level has changed.
data: double: new volume with range of 0.0 - 1.0.
Trait Implementations
impl Clone for AVDevToAppMessageType
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fn clone(&self) -> AVDevToAppMessageType
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fn clone_from(&mut self, source: &Self)
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impl Copy for AVDevToAppMessageType
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impl Debug for AVDevToAppMessageType
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impl Eq for AVDevToAppMessageType
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impl Hash for AVDevToAppMessageType
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fn hash<__H: Hasher>(&self, state: &mut __H)
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fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
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H: Hasher,
impl PartialEq<AVDevToAppMessageType> for AVDevToAppMessageType
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fn eq(&self, other: &AVDevToAppMessageType) -> bool
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#[must_use]fn ne(&self, other: &Rhs) -> bool
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impl StructuralEq for AVDevToAppMessageType
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impl StructuralPartialEq for AVDevToAppMessageType
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Auto Trait Implementations
impl RefUnwindSafe for AVDevToAppMessageType
impl Send for AVDevToAppMessageType
impl Sync for AVDevToAppMessageType
impl Unpin for AVDevToAppMessageType
impl UnwindSafe for AVDevToAppMessageType
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,