pub fn find(name: &str) -> Option<Filter>Examples found in repository?
examples/transcode-audio.rs (line 24)
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}