Struct pw_buffer

#[repr(C)]
pub struct pw_buffer {
    pub buffer: *mut spa_buffer,
    pub user_data: *mut c_void,
    pub size: u64,
    pub requested: u64,
    pub time: u64,
}

a buffer structure obtained from pw_stream_dequeue_buffer(). The size of this structure can grow as more fields are added in the future

Fields

buffer: *mut spa_buffer

< the spa buffer

user_data: *mut c_void

< user data attached to the buffer. The user of the stream can set custom data associated with the buffer, typically in the add_buffer event. Any cleanup should be performed in the remove_buffer event. The user data is returned unmodified each time a buffer is dequeued.

size: u64

< This field is set by the user and the sum of all queued buffers is returned in the time info. For audio, it is advised to use the number of frames in the buffer for this field.

requested: u64

< For playback streams, this field contains the suggested amount of data to provide. For audio streams this will be the amount of frames required by the resampler. This field is 0 when no suggestion is provided. Since 0.3.49

time: u64

< For capture streams, this field contains the cycle time in nanoseconds when this buffer was queued in the stream. It can be compared against the pw_time values or pw_stream_get_nsec() Since 1.0.5

Trait Implementations

impl Clone for pw_buffer

fn clone(&self) -> pw_buffer

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for pw_buffer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for pw_buffer