Struct gstreamer_video::VideoInfo

pub struct VideoInfo(_);

Information describing image properties. This information can be filled in from GstCaps with VideoInfo::from_caps. The information is also used to store the specific video info when mapping a video frame with VideoFrame::map.

Use the provided macros to access the info in this structure.

Methods

impl VideoInfo

pub fn new<'a>(
    format: VideoFormat,
    width: u32,
    height: u32
) -> VideoInfoBuilder<'a>

Allocate a new VideoInfo that is also initialized with VideoInfo::init.

Returns

a new VideoInfo. free with VideoInfo::free.

pub fn from_caps(caps: &CapsRef) -> Result<Self, BoolError>

Parse caps and update self.

caps

a gst::Caps

Returns

TRUE if caps could be parsed

pub fn to_caps(&self) -> Result<Caps, BoolError>

Convert the values of self into a gst::Caps.

Returns

a new gst::Caps containing the info of self.

pub fn format(&self) -> VideoFormat

pub fn format_info(&self) -> VideoFormatInfo

pub fn width(&self) -> u32

pub fn height(&self) -> u32

pub fn interlace_mode(&self) -> VideoInterlaceMode

pub fn flags(&self) -> VideoFlags

pub fn size(&self) -> usize

pub fn views(&self) -> u32

pub fn chroma_site(&self) -> VideoChromaSite

pub fn colorimetry(&self) -> VideoColorimetry

pub fn par(&self) -> Fraction

pub fn fps(&self) -> Fraction

pub fn offset(&self) -> &[usize]

pub fn stride(&self) -> &[i32]

pub fn multiview_mode(&self) -> VideoMultiviewMode

pub fn multiview_flags(&self) -> VideoMultiviewFlags

pub fn field_order(&self) -> VideoFieldOrder

pub fn has_alpha(&self) -> bool

pub fn is_gray(&self) -> bool

pub fn is_rgb(&self) -> bool

pub fn is_yuv(&self) -> bool

pub fn is_interlaced(&self) -> bool

pub fn n_planes(&self) -> u32

pub fn n_components(&self) -> u32

pub fn convert<V: Into<GenericFormattedValue>, U: SpecificFormattedValue>(
    &self,
    src_val: V
) -> Option<U>

Converts among various gst::Format types. This function handles GST_FORMAT_BYTES, GST_FORMAT_TIME, and GST_FORMAT_DEFAULT. For raw video, GST_FORMAT_DEFAULT corresponds to video frames. This function can be used to handle pad queries of the type GST_QUERY_CONVERT.

src_format

gst::Format of the src_value

src_value

value to convert

dest_format

gst::Format of the dest_value

dest_value

pointer to destination value

Returns

TRUE if the conversion was successful.

pub fn convert_generic<V: Into<GenericFormattedValue>>(
    &self,
    src_val: V,
    dest_fmt: Format
) -> Option<GenericFormattedValue>

pub fn align(&mut self, align: &mut VideoAlignment) -> bool

Adjust the offset and stride fields in self so that the padding and stride alignment in align is respected.

Extra padding will be added to the right side when stride alignment padding is required and align will be updated with the new padding values.

align

alignment parameters

Returns

false if alignment could not be applied, e.g. because the size of a frame can't be represented as a 32 bit integer (Since: 1.12)

Trait Implementations

impl Clone for VideoInfo

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for VideoInfo

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

Formats the value using the given formatter.

impl Eq for VideoInfo

impl PartialEq<VideoInfo> for VideoInfo

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Send for VideoInfo

impl StaticType for VideoInfo

fn static_type() -> Type

Returns the type identifier of Self.

impl Sync for VideoInfo