Struct cros_codecs::decoders::h264::dpb::Dpb

pub struct Dpb<T: DecodedHandle + Clone> { /* private fields */ }

Implementations

impl<T: DecodedHandle + Clone> Dpb<T>

pub fn pictures(&self) -> impl Iterator<Item = Ref<'_, PictureData>>

Returns an iterator over the underlying H264 pictures stored in the DPB.

pub fn pictures_mut(&mut self) -> impl Iterator<Item = RefMut<'_, PictureData>>

Returns a mutable iterator over the underlying H264 pictures stored in the DPB.

pub fn len(&self) -> usize

Returns the length of the DPB.

pub fn is_empty(&self) -> bool

pub fn entries(&self) -> &Vec<DpbEntry<T>>

Get a reference to the whole DPB entries.

pub fn set_max_num_pics(&mut self, max_num_pics: usize)

Set the dpb’s max num pics.

pub fn max_num_pics(&self) -> usize

Get a reference to the dpb’s max num pics.

pub fn num_ref_frames(&self) -> usize

pub fn interlaced(&self) -> bool

Get a reference to the dpb’s interlaced mode.

pub fn set_interlaced(&mut self, interlaced: bool)

Set the dpb’s interlaced mode.

pub fn find_short_term_lowest_frame_num_wrap( &self ) -> Option<Rc<RefCell<PictureData>>>

Find the short term reference picture with the lowest frame_num_wrap value.

pub fn mark_all_as_unused_for_ref(&mut self)

Mark all pictures in the DPB as unused for reference.

pub fn remove_unused(&mut self)

Remove unused pictures from the DPB. A picture is not going to be used anymore if it’s a) not a reference and b) not needed for output

pub fn find_short_term_with_pic_num(&self, pic_num: i32) -> Option<DpbEntry<T>>

Find a short term reference picture with the given pic_num value.

pub fn find_long_term_with_long_term_pic_num( &self, long_term_pic_num: i32 ) -> Option<DpbEntry<T>>

Find a long term reference picture with the given long_term_pic_num value.

pub fn store_picture( &mut self, picture: Rc<RefCell<PictureData>>, handle: Option<T> ) -> Result<()>

Store a picture and its backend handle in the DPB.

pub fn has_empty_frame_buffer(&self) -> bool

Whether the DPB has an empty slot for a new picture.

pub fn needs_bumping(&self, to_insert: &PictureData) -> bool

Whether the DPB needs bumping, as described by clauses 1, 4, 5, 6 of C.4.5.3 “Bumping” process.

pub fn bump(&mut self, flush: bool) -> Option<DpbEntry<T>>

Bump the dpb, returning a picture as per the bumping process described in C.4.5.3. Note that this picture will still be referenced by its pair, if any.

pub fn drain(&mut self) -> Vec<DpbEntry<T>>

Drains the DPB by continuously invoking the bumping process.

pub fn clear(&mut self)

Clears the DPB, dropping all the pictures.

pub fn get_short_term_refs(&self, out: &mut Vec<DpbEntry<T>>)

Gets a Vec of short term refs into out

pub fn get_long_term_refs(&self, out: &mut Vec<DpbEntry<T>>)

Gets a Vec of long term refs into out

Trait Implementations

impl<T: DecodedHandle + Clone> Debug for Dpb<T>

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

Formats the value using the given formatter.

impl<T: DecodedHandle + Clone> Default for Dpb<T>

fn default() -> Self

Returns the “default value” for a type.