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pub mod flag; pub use self::flag::Flags; mod rect; pub use self::rect::{Ass, Bitmap, Rect, Text}; mod rect_mut; pub use self::rect_mut::{AssMut, BitmapMut, RectMut, TextMut}; use std::marker::PhantomData; use std::mem; use ffi::AVSubtitleType::*; use ffi::*; use libc::{c_uint, size_t}; #[derive(Eq, PartialEq, Clone, Copy, Debug)] pub enum Type { None, Bitmap, Text, Ass, } impl From<AVSubtitleType> for Type { fn from(value: AVSubtitleType) -> Type { match value { SUBTITLE_NONE => Type::None, SUBTITLE_BITMAP => Type::Bitmap, SUBTITLE_TEXT => Type::Text, SUBTITLE_ASS => Type::Ass, } } } impl From<Type> for AVSubtitleType { fn from(value: Type) -> AVSubtitleType { match value { Type::None => SUBTITLE_NONE, Type::Bitmap => SUBTITLE_BITMAP, Type::Text => SUBTITLE_TEXT, Type::Ass => SUBTITLE_ASS, } } } pub struct Subtitle(AVSubtitle); impl Subtitle { pub unsafe fn as_ptr(&self) -> *const AVSubtitle { &self.0 } pub unsafe fn as_mut_ptr(&mut self) -> *mut AVSubtitle { &mut self.0 } } impl Subtitle { pub fn new() -> Self { unsafe { Subtitle(mem::zeroed()) } } pub fn pts(&self) -> Option<i64> { match self.0.pts { AV_NOPTS_VALUE => None, pts => Some(pts), } } pub fn set_pts(&mut self, value: Option<i64>) { self.0.pts = value.unwrap_or(AV_NOPTS_VALUE); } pub fn start(&self) -> u32 { self.0.start_display_time as u32 } pub fn set_start(&mut self, value: u32) { self.0.start_display_time = value; } pub fn end(&self) -> u32 { self.0.end_display_time as u32 } pub fn set_end(&mut self, value: u32) { self.0.end_display_time = value; } pub fn rects(&self) -> RectIter { RectIter::new(&self.0) } pub fn rects_mut(&mut self) -> RectMutIter { RectMutIter::new(&mut self.0) } pub fn add_rect(&mut self, kind: Type) -> RectMut { unsafe { self.0.num_rects += 1; self.0.rects = av_realloc( self.0.rects as *mut _, (mem::size_of::<*const AVSubtitleRect>() * self.0.num_rects as usize) as size_t, ) as *mut _; let rect = av_mallocz(mem::size_of::<AVSubtitleRect>() as size_t) as *mut AVSubtitleRect; (*rect).type_ = kind.into(); *self.0.rects.offset((self.0.num_rects - 1) as isize) = rect; RectMut::wrap(rect) } } } impl Default for Subtitle { fn default() -> Self { Self::new() } } pub struct RectIter<'a> { ptr: *const AVSubtitle, cur: c_uint, _marker: PhantomData<&'a Subtitle>, } impl<'a> RectIter<'a> { pub fn new(ptr: *const AVSubtitle) -> Self { RectIter { ptr, cur: 0, _marker: PhantomData, } } } impl<'a> Iterator for RectIter<'a> { type Item = Rect<'a>; fn next(&mut self) -> Option<<Self as Iterator>::Item> { unsafe { if self.cur >= (*self.ptr).num_rects { None } else { self.cur += 1; Some(Rect::wrap( *(*self.ptr).rects.offset((self.cur - 1) as isize), )) } } } fn size_hint(&self) -> (usize, Option<usize>) { unsafe { let length = (*self.ptr).num_rects as usize; (length - self.cur as usize, Some(length - self.cur as usize)) } } } impl<'a> ExactSizeIterator for RectIter<'a> {} pub struct RectMutIter<'a> { ptr: *mut AVSubtitle, cur: c_uint, _marker: PhantomData<&'a Subtitle>, } impl<'a> RectMutIter<'a> { pub fn new(ptr: *mut AVSubtitle) -> Self { RectMutIter { ptr, cur: 0, _marker: PhantomData, } } } impl<'a> Iterator for RectMutIter<'a> { type Item = RectMut<'a>; fn next(&mut self) -> Option<<Self as Iterator>::Item> { unsafe { if self.cur >= (*self.ptr).num_rects { None } else { self.cur += 1; Some(RectMut::wrap( *(*self.ptr).rects.offset((self.cur - 1) as isize), )) } } } fn size_hint(&self) -> (usize, Option<usize>) { unsafe { let length = (*self.ptr).num_rects as usize; (length - self.cur as usize, Some(length - self.cur as usize)) } } } impl<'a> ExactSizeIterator for RectMutIter<'a> {}