1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158

use std::ops::{Deref, DerefMut};

#[cfg(not(feature = "ffmpeg_5_0"))]
use ffi::*;
use libc::c_int;

use super::{slice, Opened};
use codec::Context;
use color;
#[cfg(not(feature = "ffmpeg_5_0"))]
use frame;
use util::chroma;
use util::format;
#[cfg(not(feature = "ffmpeg_5_0"))]
use {packet, Error};
use {FieldOrder, Rational};

pub struct Video(pub Opened);

impl Video {
    #[deprecated(
        since = "4.4.0",
        note = "Underlying API avcodec_decode_video2 has been deprecated since FFmpeg 3.1; \
        consider switching to send_packet() and receive_frame()"
    )]
    #[cfg(not(feature = "ffmpeg_5_0"))]
    pub fn decode<P: packet::Ref>(
        &mut self,
        packet: &P,
        out: &mut frame::Video,
    ) -> Result<bool, Error> {
        unsafe {
            let mut got: c_int = 0;

            match avcodec_decode_video2(
                self.as_mut_ptr(),
                out.as_mut_ptr(),
                &mut got,
                packet.as_ptr(),
            ) {
                e if e < 0 => Err(Error::from(e)),
                _ => Ok(got != 0),
            }
        }
    }

    pub fn width(&self) -> u32 {
        unsafe { (*self.as_ptr()).width as u32 }
    }

    pub fn height(&self) -> u32 {
        unsafe { (*self.as_ptr()).height as u32 }
    }

    pub fn format(&self) -> format::Pixel {
        unsafe { format::Pixel::from((*self.as_ptr()).pix_fmt) }
    }

    pub fn has_b_frames(&self) -> bool {
        unsafe { (*self.as_ptr()).has_b_frames != 0 }
    }

    pub fn aspect_ratio(&self) -> Rational {
        unsafe { Rational::from((*self.as_ptr()).sample_aspect_ratio) }
    }

    pub fn color_space(&self) -> color::Space {
        unsafe { color::Space::from((*self.as_ptr()).colorspace) }
    }

    pub fn color_range(&self) -> color::Range {
        unsafe { color::Range::from((*self.as_ptr()).color_range) }
    }

    pub fn color_primaries(&self) -> color::Primaries {
        unsafe { color::Primaries::from((*self.as_ptr()).color_primaries) }
    }

    pub fn color_transfer_characteristic(&self) -> color::TransferCharacteristic {
        unsafe { color::TransferCharacteristic::from((*self.as_ptr()).color_trc) }
    }

    pub fn chroma_location(&self) -> chroma::Location {
        unsafe { chroma::Location::from((*self.as_ptr()).chroma_sample_location) }
    }

    #[cfg(not(feature = "ffmpeg_7_0"))]
    pub fn set_slice_count(&mut self, value: usize) {
        unsafe {
            (*self.as_mut_ptr()).slice_count = value as c_int;
        }
    }

    pub fn set_slice_flags(&mut self, value: slice::Flags) {
        unsafe {
            (*self.as_mut_ptr()).slice_flags = value.bits();
        }
    }

    pub fn skip_top(&mut self, value: usize) {
        unsafe {
            (*self.as_mut_ptr()).skip_top = value as c_int;
        }
    }

    pub fn skip_bottom(&mut self, value: usize) {
        unsafe {
            (*self.as_mut_ptr()).skip_bottom = value as c_int;
        }
    }

    pub fn references(&self) -> usize {
        unsafe { (*self.as_ptr()).refs as usize }
    }

    pub fn set_field_order(&mut self, value: FieldOrder) {
        unsafe {
            (*self.as_mut_ptr()).field_order = value.into();
        }
    }

    // intra_matrix
    // inter_matrix

    pub fn intra_dc_precision(&self) -> u8 {
        unsafe { (*self.as_ptr()).intra_dc_precision as u8 }
    }

    pub fn max_bit_rate(&self) -> usize {
        unsafe { (*self.as_ptr()).rc_max_rate as usize }
    }
}

impl Deref for Video {
    type Target = Opened;

    fn deref(&self) -> &<Self as Deref>::Target {
        &self.0
    }
}

impl DerefMut for Video {
    fn deref_mut(&mut self) -> &mut <Self as Deref>::Target {
        &mut self.0
    }
}

impl AsRef<Context> for Video {
    fn as_ref(&self) -> &Context {
        self
    }
}

impl AsMut<Context> for Video {
    fn as_mut(&mut self) -> &mut Context {
        &mut self.0
    }
}