playa_ffmpeg/codec/decoder/
video.rs

1use std::ops::{Deref, DerefMut};
2
3#[cfg(not(feature = "ffmpeg_5_0"))]
4use crate::ffi::*;
5use libc::c_int;
6
7use super::{Opened, slice};
8#[cfg(not(feature = "ffmpeg_5_0"))]
9use crate::frame;
10use crate::{
11    FieldOrder, Rational,
12    codec::Context,
13    color,
14    util::{chroma, format},
15};
16#[cfg(not(feature = "ffmpeg_5_0"))]
17use {crate::Error, crate::packet};
18
19pub struct Video(pub Opened);
20
21impl Video {
22    #[deprecated(
23        since = "4.4.0",
24        note = "Underlying API avcodec_decode_video2 has been deprecated since FFmpeg 3.1; \
25        consider switching to send_packet() and receive_frame()"
26    )]
27    #[cfg(not(feature = "ffmpeg_5_0"))]
28    pub fn decode<P: packet::Ref>(&mut self, packet: &P, out: &mut frame::Video) -> Result<bool, Error> {
29        unsafe {
30            let mut got: c_int = 0;
31
32            match avcodec_decode_video2(self.as_mut_ptr(), out.as_mut_ptr(), &mut got, packet.as_ptr()) {
33                e if e < 0 => Err(Error::from(e)),
34                _ => Ok(got != 0),
35            }
36        }
37    }
38
39    pub fn width(&self) -> u32 {
40        unsafe { (*self.as_ptr()).width as u32 }
41    }
42
43    pub fn height(&self) -> u32 {
44        unsafe { (*self.as_ptr()).height as u32 }
45    }
46
47    pub fn format(&self) -> format::Pixel {
48        unsafe { format::Pixel::from((*self.as_ptr()).pix_fmt) }
49    }
50
51    pub fn has_b_frames(&self) -> bool {
52        unsafe { (*self.as_ptr()).has_b_frames != 0 }
53    }
54
55    pub fn aspect_ratio(&self) -> Rational {
56        unsafe { Rational::from((*self.as_ptr()).sample_aspect_ratio) }
57    }
58
59    pub fn color_space(&self) -> color::Space {
60        unsafe { color::Space::from((*self.as_ptr()).colorspace) }
61    }
62
63    pub fn color_range(&self) -> color::Range {
64        unsafe { color::Range::from((*self.as_ptr()).color_range) }
65    }
66
67    pub fn color_primaries(&self) -> color::Primaries {
68        unsafe { color::Primaries::from((*self.as_ptr()).color_primaries) }
69    }
70
71    pub fn color_transfer_characteristic(&self) -> color::TransferCharacteristic {
72        unsafe { color::TransferCharacteristic::from((*self.as_ptr()).color_trc) }
73    }
74
75    pub fn chroma_location(&self) -> chroma::Location {
76        unsafe { chroma::Location::from((*self.as_ptr()).chroma_sample_location) }
77    }
78
79    #[cfg(not(feature = "ffmpeg_7_0"))]
80    pub fn set_slice_count(&mut self, value: usize) {
81        unsafe {
82            (*self.as_mut_ptr()).slice_count = value as c_int;
83        }
84    }
85
86    pub fn set_slice_flags(&mut self, value: slice::Flags) {
87        unsafe {
88            (*self.as_mut_ptr()).slice_flags = value.bits();
89        }
90    }
91
92    pub fn skip_top(&mut self, value: usize) {
93        unsafe {
94            (*self.as_mut_ptr()).skip_top = value as c_int;
95        }
96    }
97
98    pub fn skip_bottom(&mut self, value: usize) {
99        unsafe {
100            (*self.as_mut_ptr()).skip_bottom = value as c_int;
101        }
102    }
103
104    pub fn references(&self) -> usize {
105        unsafe { (*self.as_ptr()).refs as usize }
106    }
107
108    pub fn set_field_order(&mut self, value: FieldOrder) {
109        unsafe {
110            (*self.as_mut_ptr()).field_order = value.into();
111        }
112    }
113
114    // intra_matrix
115    // inter_matrix
116
117    pub fn intra_dc_precision(&self) -> u8 {
118        unsafe { (*self.as_ptr()).intra_dc_precision as u8 }
119    }
120
121    pub fn max_bit_rate(&self) -> usize {
122        unsafe { (*self.as_ptr()).rc_max_rate as usize }
123    }
124}
125
126impl Deref for Video {
127    type Target = Opened;
128
129    fn deref(&self) -> &<Self as Deref>::Target {
130        &self.0
131    }
132}
133
134impl DerefMut for Video {
135    fn deref_mut(&mut self) -> &mut <Self as Deref>::Target {
136        &mut self.0
137    }
138}
139
140impl AsRef<Context> for Video {
141    fn as_ref(&self) -> &Context {
142        self
143    }
144}
145
146impl AsMut<Context> for Video {
147    fn as_mut(&mut self) -> &mut Context {
148        &mut self.0
149    }
150}
playa_ffmpeg/codec/decoder/video.rs

playa_ffmpeg/codec/decoder/
video.rs
