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Audio

ffmpeg_next::codec::audio

Struct Audio 

Source 
pub struct Audio { /* private fields */ }

Implementations§

Source§

impl Audio

Source

pub unsafe fn new(codec: Codec) -> Audio

Source§

impl Audio

Source

pub fn rates(&self) -> Option<RateIter>

Examples found in repository?
examples/codec-info.rs (line 38)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}
Source

pub fn formats(&self) -> Option<FormatIter>

Examples found in repository?
examples/transcode-audio.rs (line 107)
64fn transcoder<P: AsRef<Path> + ?Sized>(
65    ictx: &mut format::context::Input,
66    octx: &mut format::context::Output,
67    path: &P,
68    filter_spec: &str,
69) -> Result<Transcoder, ffmpeg::Error> {
70    let input = ictx
71        .streams()
72        .best(media::Type::Audio)
73        .expect("could not find best audio stream");
74    let context = ffmpeg::codec::context::Context::from_parameters(input.parameters())?;
75    let mut decoder = context.decoder().audio()?;
76    let codec = ffmpeg::encoder::find(octx.format().codec(path, media::Type::Audio))
77        .expect("failed to find encoder")
78        .audio()?;
79    let global = octx
80        .format()
81        .flags()
82        .contains(ffmpeg::format::flag::Flags::GLOBAL_HEADER);
83
84    decoder.set_parameters(input.parameters())?;
85
86    let mut output = octx.add_stream(codec)?;
87    let context = ffmpeg::codec::context::Context::from_parameters(output.parameters())?;
88    let mut encoder = context.encoder().audio()?;
89
90    let channel_layout = codec
91        .channel_layouts()
92        .map(|cls| cls.best(decoder.channel_layout().channels()))
93        .unwrap_or(ffmpeg::channel_layout::ChannelLayout::STEREO);
94
95    if global {
96        encoder.set_flags(ffmpeg::codec::flag::Flags::GLOBAL_HEADER);
97    }
98
99    encoder.set_rate(decoder.rate() as i32);
100    encoder.set_channel_layout(channel_layout);
101    #[cfg(not(feature = "ffmpeg_7_0"))]
102    {
103        encoder.set_channels(channel_layout.channels());
104    }
105    encoder.set_format(
106        codec
107            .formats()
108            .expect("unknown supported formats")
109            .next()
110            .unwrap(),
111    );
112    encoder.set_bit_rate(decoder.bit_rate());
113    encoder.set_max_bit_rate(decoder.max_bit_rate());
114
115    encoder.set_time_base((1, decoder.rate() as i32));
116    output.set_time_base((1, decoder.rate() as i32));
117
118    let encoder = encoder.open_as(codec)?;
119    output.set_parameters(&encoder);
120
121    let filter = filter(filter_spec, &decoder, &encoder)?;
122
123    let in_time_base = decoder.time_base();
124    let out_time_base = output.time_base();
125
126    Ok(Transcoder {
127        stream: input.index(),
128        filter,
129        decoder,
130        encoder,
131        in_time_base,
132        out_time_base,
133    })
134}
More examples
Hide additional examples
examples/codec-info.rs (line 44)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}
Source

pub fn channel_layouts(&self) -> Option<ChannelLayoutIter>

Examples found in repository?
examples/transcode-audio.rs (line 91)
64fn transcoder<P: AsRef<Path> + ?Sized>(
65    ictx: &mut format::context::Input,
66    octx: &mut format::context::Output,
67    path: &P,
68    filter_spec: &str,
69) -> Result<Transcoder, ffmpeg::Error> {
70    let input = ictx
71        .streams()
72        .best(media::Type::Audio)
73        .expect("could not find best audio stream");
74    let context = ffmpeg::codec::context::Context::from_parameters(input.parameters())?;
75    let mut decoder = context.decoder().audio()?;
76    let codec = ffmpeg::encoder::find(octx.format().codec(path, media::Type::Audio))
77        .expect("failed to find encoder")
78        .audio()?;
79    let global = octx
80        .format()
81        .flags()
82        .contains(ffmpeg::format::flag::Flags::GLOBAL_HEADER);
83
84    decoder.set_parameters(input.parameters())?;
85
86    let mut output = octx.add_stream(codec)?;
87    let context = ffmpeg::codec::context::Context::from_parameters(output.parameters())?;
88    let mut encoder = context.encoder().audio()?;
89
90    let channel_layout = codec
91        .channel_layouts()
92        .map(|cls| cls.best(decoder.channel_layout().channels()))
93        .unwrap_or(ffmpeg::channel_layout::ChannelLayout::STEREO);
94
95    if global {
96        encoder.set_flags(ffmpeg::codec::flag::Flags::GLOBAL_HEADER);
97    }
98
99    encoder.set_rate(decoder.rate() as i32);
100    encoder.set_channel_layout(channel_layout);
101    #[cfg(not(feature = "ffmpeg_7_0"))]
102    {
103        encoder.set_channels(channel_layout.channels());
104    }
105    encoder.set_format(
106        codec
107            .formats()
108            .expect("unknown supported formats")
109            .next()
110            .unwrap(),
111    );
112    encoder.set_bit_rate(decoder.bit_rate());
113    encoder.set_max_bit_rate(decoder.max_bit_rate());
114
115    encoder.set_time_base((1, decoder.rate() as i32));
116    output.set_time_base((1, decoder.rate() as i32));
117
118    let encoder = encoder.open_as(codec)?;
119    output.set_parameters(&encoder);
120
121    let filter = filter(filter_spec, &decoder, &encoder)?;
122
123    let in_time_base = decoder.time_base();
124    let out_time_base = output.time_base();
125
126    Ok(Transcoder {
127        stream: input.index(),
128        filter,
129        decoder,
130        encoder,
131        in_time_base,
132        out_time_base,
133    })
134}
More examples
Hide additional examples
examples/codec-info.rs (line 50)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}

Methods from Deref<Target = Codec>§

Source

pub unsafe fn as_ptr(&self) -> *const AVCodec

Source

pub fn is_encoder(&self) -> bool

Source

pub fn is_decoder(&self) -> bool

Source

pub fn name(&self) -> &str

Examples found in repository?
examples/codec-info.rs (line 12)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}
Source

pub fn description(&self) -> &str

Examples found in repository?
examples/codec-info.rs (line 13)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}
Source

pub fn medium(&self) -> Type

Examples found in repository?
examples/codec-info.rs (line 14)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}
Source

pub fn id(&self) -> Id

Examples found in repository?
examples/codec-info.rs (line 11)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}
Source

pub fn is_video(&self) -> bool

Source

pub fn is_audio(&self) -> bool

Source

pub fn max_lowres(&self) -> i32

Examples found in repository?
examples/codec-info.rs (line 57)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}
Source

pub fn capabilities(&self) -> Capabilities

Examples found in repository?
examples/transcode-audio.rs (line 42)
9fn filter(
10    spec: &str,
11    decoder: &codec::decoder::Audio,
12    encoder: &codec::encoder::Audio,
13) -> Result<filter::Graph, ffmpeg::Error> {
14    let mut filter = filter::Graph::new();
15
16    let args = format!(
17        "time_base={}:sample_rate={}:sample_fmt={}:channel_layout=0x{:x}",
18        decoder.time_base(),
19        decoder.rate(),
20        decoder.format().name(),
21        decoder.channel_layout().bits()
22    );
23
24    filter.add(&filter::find("abuffer").unwrap(), "in", &args)?;
25    filter.add(&filter::find("abuffersink").unwrap(), "out", "")?;
26
27    {
28        let mut out = filter.get("out").unwrap();
29
30        out.set_sample_format(encoder.format());
31        out.set_channel_layout(encoder.channel_layout());
32        out.set_sample_rate(encoder.rate());
33    }
34
35    filter.output("in", 0)?.input("out", 0)?.parse(spec)?;
36    filter.validate()?;
37
38    println!("{}", filter.dump());
39
40    if let Some(codec) = encoder.codec()
41        && !codec
42            .capabilities()
43            .contains(ffmpeg::codec::capabilities::Capabilities::VARIABLE_FRAME_SIZE)
44    {
45        filter
46            .get("out")
47            .unwrap()
48            .sink()
49            .set_frame_size(encoder.frame_size());
50    }
51
52    Ok(filter)
53}
More examples
Hide additional examples
examples/codec-info.rs (line 15)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}
Source

pub fn profiles(&self) -> Option<ProfileIter>

Examples found in repository?
examples/codec-info.rs (line 17)
5fn main() {
6    ffmpeg::init().unwrap();
7
8    for arg in env::args().skip(1) {
9        if let Some(codec) = ffmpeg::decoder::find_by_name(&arg) {
10            println!("type: decoder");
11            println!("\t id: {:?}", codec.id());
12            println!("\t name: {}", codec.name());
13            println!("\t description: {}", codec.description());
14            println!("\t medium: {:?}", codec.medium());
15            println!("\t capabilities: {:?}", codec.capabilities());
16
17            if let Some(profiles) = codec.profiles() {
18                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
19            } else {
20                println!("\t profiles: none");
21            }
22
23            if let Ok(video) = codec.video() {
24                if let Some(rates) = video.rates() {
25                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
26                } else {
27                    println!("\t rates: any");
28                }
29
30                if let Some(formats) = video.formats() {
31                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
32                } else {
33                    println!("\t formats: any");
34                }
35            }
36
37            if let Ok(audio) = codec.audio() {
38                if let Some(rates) = audio.rates() {
39                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
40                } else {
41                    println!("\t rates: any");
42                }
43
44                if let Some(formats) = audio.formats() {
45                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
46                } else {
47                    println!("\t formats: any");
48                }
49
50                if let Some(layouts) = audio.channel_layouts() {
51                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
52                } else {
53                    println!("\t channel_layouts: any");
54                }
55            }
56
57            println!("\t max_lowres: {:?}", codec.max_lowres());
58        }
59
60        if let Some(codec) = ffmpeg::encoder::find_by_name(&arg) {
61            println!();
62            println!("type: encoder");
63            println!("\t id: {:?}", codec.id());
64            println!("\t name: {}", codec.name());
65            println!("\t description: {}", codec.description());
66            println!("\t medium: {:?}", codec.medium());
67            println!("\t capabilities: {:?}", codec.capabilities());
68
69            if let Some(profiles) = codec.profiles() {
70                println!("\t profiles: {:?}", profiles.collect::<Vec<_>>());
71            }
72
73            if let Ok(video) = codec.video() {
74                if let Some(rates) = video.rates() {
75                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
76                } else {
77                    println!("\t rates: any");
78                }
79
80                if let Some(formats) = video.formats() {
81                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
82                } else {
83                    println!("\t formats: any");
84                }
85            }
86
87            if let Ok(audio) = codec.audio() {
88                if let Some(rates) = audio.rates() {
89                    println!("\t rates: {:?}", rates.collect::<Vec<_>>());
90                } else {
91                    println!("\t rates: any");
92                }
93
94                if let Some(formats) = audio.formats() {
95                    println!("\t formats: {:?}", formats.collect::<Vec<_>>());
96                } else {
97                    println!("\t formats: any");
98                }
99
100                if let Some(layouts) = audio.channel_layouts() {
101                    println!("\t channel_layouts: {:?}", layouts.collect::<Vec<_>>());
102                } else {
103                    println!("\t channel_layouts: any");
104                }
105            }
106
107            println!("\t max_lowres: {:?}", codec.max_lowres());
108        }
109    }
110}

Trait Implementations§

Source§

impl Clone for Audio

Source§

fn clone(&self) -> Audio

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for Audio

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impl Decoder for Audio

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fn decoder(self) -> Option<Codec>

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impl Deref for Audio

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type Target = Codec

The resulting type after dereferencing.
Source§

fn deref(&self) -> &Self::Target

Dereferences the value.
Source§

impl Encoder for Audio

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fn encoder(self) -> Option<Codec>

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impl Eq for Audio

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impl PartialEq for Audio

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fn eq(&self, other: &Audio) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
Source§

impl StructuralPartialEq for Audio

Auto Trait Implementations§

§

impl Freeze for Audio

§

impl RefUnwindSafe for Audio

§

impl Send for Audio

§

impl Sync for Audio

§

impl Unpin for Audio

§

impl UnsafeUnpin for Audio

§

impl UnwindSafe for Audio

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.