ffmpeg_next_crossfix/codec/decoder/
video.rs

1use std::ops::{Deref, DerefMut};
2
3use ffi::*;
4use libc::c_int;
5
6use super::{slice, Opened};
7use codec::Context;
8use color;
9use frame;
10use util::chroma;
11use util::format;
12use {packet, Error, FieldOrder, Rational};
13
14pub struct Video(pub Opened);
15
16impl Video {
17    #[deprecated(
18        since = "4.4.0",
19        note = "Underlying API avcodec_decode_video2 has been deprecated since FFmpeg 3.1; \
20        consider switching to send_packet() and receive_frame()"
21    )]
22    pub fn decode<P: packet::Ref>(
23        &mut self,
24        packet: &P,
25        out: &mut frame::Video,
26    ) -> Result<bool, Error> {
27        unsafe {
28            let mut got: c_int = 0;
29
30            match avcodec_decode_video2(
31                self.as_mut_ptr(),
32                out.as_mut_ptr(),
33                &mut got,
34                packet.as_ptr(),
35            ) {
36                e if e < 0 => Err(Error::from(e)),
37                _ => Ok(got != 0),
38            }
39        }
40    }
41
42    pub fn width(&self) -> u32 {
43        unsafe { (*self.as_ptr()).width as u32 }
44    }
45
46    pub fn height(&self) -> u32 {
47        unsafe { (*self.as_ptr()).height as u32 }
48    }
49
50    pub fn format(&self) -> format::Pixel {
51        unsafe { format::Pixel::from((*self.as_ptr()).pix_fmt) }
52    }
53
54    pub fn has_b_frames(&self) -> bool {
55        unsafe { (*self.as_ptr()).has_b_frames != 0 }
56    }
57
58    pub fn aspect_ratio(&self) -> Rational {
59        unsafe { Rational::from((*self.as_ptr()).sample_aspect_ratio) }
60    }
61
62    pub fn color_space(&self) -> color::Space {
63        unsafe { color::Space::from((*self.as_ptr()).colorspace) }
64    }
65
66    pub fn color_range(&self) -> color::Range {
67        unsafe { color::Range::from((*self.as_ptr()).color_range) }
68    }
69
70    pub fn color_primaries(&self) -> color::Primaries {
71        unsafe { color::Primaries::from((*self.as_ptr()).color_primaries) }
72    }
73
74    pub fn color_transfer_characteristic(&self) -> color::TransferCharacteristic {
75        unsafe { color::TransferCharacteristic::from((*self.as_ptr()).color_trc) }
76    }
77
78    pub fn chroma_location(&self) -> chroma::Location {
79        unsafe { chroma::Location::from((*self.as_ptr()).chroma_sample_location) }
80    }
81
82    pub fn set_slice_count(&mut self, value: usize) {
83        unsafe {
84            (*self.as_mut_ptr()).slice_count = value as c_int;
85        }
86    }
87
88    pub fn set_slice_flags(&mut self, value: slice::Flags) {
89        unsafe {
90            (*self.as_mut_ptr()).slice_flags = value.bits();
91        }
92    }
93
94    pub fn skip_top(&mut self, value: usize) {
95        unsafe {
96            (*self.as_mut_ptr()).skip_top = value as c_int;
97        }
98    }
99
100    pub fn skip_bottom(&mut self, value: usize) {
101        unsafe {
102            (*self.as_mut_ptr()).skip_bottom = value as c_int;
103        }
104    }
105
106    pub fn references(&self) -> usize {
107        unsafe { (*self.as_ptr()).refs as usize }
108    }
109
110    pub fn set_field_order(&mut self, value: FieldOrder) {
111        unsafe {
112            (*self.as_mut_ptr()).field_order = value.into();
113        }
114    }
115
116    // intra_matrix
117    // inter_matrix
118
119    pub fn intra_dc_precision(&self) -> u8 {
120        unsafe { (*self.as_ptr()).intra_dc_precision as u8 }
121    }
122
123    pub fn max_bit_rate(&self) -> usize {
124        unsafe { (*self.as_ptr()).rc_max_rate as usize }
125    }
126}
127
128impl Deref for Video {
129    type Target = Opened;
130
131    fn deref(&self) -> &<Self as Deref>::Target {
132        &self.0
133    }
134}
135
136impl DerefMut for Video {
137    fn deref_mut(&mut self) -> &mut <Self as Deref>::Target {
138        &mut self.0
139    }
140}
141
142impl AsRef<Context> for Video {
143    fn as_ref(&self) -> &Context {
144        self
145    }
146}
147
148impl AsMut<Context> for Video {
149    fn as_mut(&mut self) -> &mut Context {
150        &mut self.0
151    }
152}
ffmpeg_next_crossfix/codec/decoder/video.rs

ffmpeg_next_crossfix/codec/decoder/
video.rs
