ffms2 0.1.0

FFI bindings to ffms2
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

use crate::audio::MatrixEncoding;
use crate::*;

create_enum!(
    ResampleFilterType,
    FFMS_ResampleFilterType,
    resample_filter_type,
    (
        RESAMPLE_FILTER_CUBIC,
        RESAMPLE_FILTER_SINC,
        RESAMPLE_FILTER_KAISER,
    )
);

create_enum!(
    AudioDitherMethod,
    FFMS_AudioDitherMethod,
    audio_dither_method,
    (
        RESAMPLE_DITHER_NONE,
        RESAMPLE_DITHER_RECTANGULAR,
        RESAMPLE_DITHER_TRIANGULAR,
        RESAMPLE_DITHER_TRIANGULAR_HIGHPASS,
        RESAMPLE_DITHER_TRIANGULAR_NOISESHAPING,
    )
);

create_enum!(
    MixingCoefficientType,
    FFMS_MixingCoefficientType,
    mix_coefficient_type,
    (
        MIXING_COEFFICIENT_Q8,
        MIXING_COEFFICIENT_Q15,
        MIXING_COEFFICIENT_FLT,
    )
);

create_struct!(
    ResampleOptions,
    resample,
    FFMS_ResampleOptions,
    (
        ChannelLayout,
        SampleFormat,
        SampleRate,
        MixingCoefficientType,
        CenterMixLevel,
        SurroundMixLevel,
        LFEMixLevel,
        Normalize,
        ForceResample,
        ResampleFilterSize,
        ResamplePhaseShift,
        LinearInterpolation,
        CutoffFrequencyRatio,
        MatrixedStereoEncoding,
        FilterType,
        KaiserBeta,
        DitherMethod
    ),
    (
        usize,
        &SampleFormat,
        usize,
        &MixingCoefficientType,
        f64,
        f64,
        f64,
        usize,
        usize,
        usize,
        usize,
        usize,
        f32,
        &MatrixEncoding,
        &ResampleFilterType,
        usize,
        &AudioDitherMethod
    ),
    (
        0,
        FFMS_SampleFormat::FFMS_FMT_U8,
        0,
        FFMS_MixingCoefficientType::FFMS_MIXING_COEFFICIENT_Q8,
        0.0,
        0.0,
        0.0,
        0,
        0,
        0,
        0,
        0,
        0.0,
        FFMS_MatrixEncoding::FFMS_MATRIX_ENCODING_NONE,
        FFMS_ResampleFilterType::FFMS_RESAMPLE_FILTER_CUBIC,
        0,
        FFMS_AudioDitherMethod::FFMS_RESAMPLE_DITHER_NONE
    ),
    (
        ChannelLayout as i64,
        SampleFormat::to_sample_format(SampleFormat),
        SampleRate as i32,
        MixingCoefficientType::to_mix_coefficient_type(MixingCoefficientType),
        CenterMixLevel as f64,
        SurroundMixLevel as f64,
        LFEMixLevel as f64,
        Normalize as i32,
        ForceResample as i32,
        ResampleFilterSize as i32,
        ResamplePhaseShift as i32,
        LinearInterpolation as i32,
        CutoffFrequencyRatio as f64,
        MatrixEncoding::to_matrix_encoding(MatrixedStereoEncoding),
        ResampleFilterType::to_resample_filter_type(FilterType),
        KaiserBeta as i32,
        AudioDitherMethod::to_audio_dither_method(DitherMethod)
    )
);

impl ResampleOptions {
    pub(crate) fn create_struct(resample: &FFMS_ResampleOptions) -> Self {
        ResampleOptions {
            resample: *resample,
        }
    }

    pub(crate) fn as_ptr(&self) -> *const FFMS_ResampleOptions {
        &self.resample
    }

    pub fn set_channel_layout(&mut self, channel_layout: i64) {
        self.resample.ChannelLayout = channel_layout;
    }

    pub fn set_sample_format(&mut self, sample_format: &SampleFormat) {
        self.resample.SampleFormat =
            SampleFormat::to_sample_format(sample_format);
    }

    pub fn normalize(&mut self, normalize: bool) {
        self.resample.Normalize = normalize as i32;
    }
}

impl Drop for ResampleOptions {
    fn drop(&mut self) {
        let raw_resample = Box::into_raw(Box::new(self.resample));
        unsafe {
            FFMS_DestroyResampleOptions(raw_resample);
        }
    }
}