metadata/
metadata.rs

1extern crate ffmpeg_rs;
2use std::env;
3
4fn main() -> Result<(), ffmpeg_rs::Error> {
5    ffmpeg_rs::init().unwrap();
6
7    match ffmpeg_rs::format::input(&env::args().nth(1).expect("missing file")) {
8        Ok(context) => {
9            for (k, v) in context.metadata().iter() {
10                println!("{}: {}", k, v);
11            }
12
13            if let Some(stream) = context.streams().best(ffmpeg_rs::media::Type::Video) {
14                println!("Best video stream index: {}", stream.index());
15            }
16
17            if let Some(stream) = context.streams().best(ffmpeg_rs::media::Type::Audio) {
18                println!("Best audio stream index: {}", stream.index());
19            }
20
21            if let Some(stream) = context.streams().best(ffmpeg_rs::media::Type::Subtitle) {
22                println!("Best subtitle stream index: {}", stream.index());
23            }
24
25            println!(
26                "duration (seconds): {:.2}",
27                context.duration() as f64 / f64::from(ffmpeg_rs::ffi::AV_TIME_BASE)
28            );
29
30            for stream in context.streams() {
31                println!("stream index {}:", stream.index());
32                println!("\ttime_base: {}", stream.time_base());
33                println!("\tstart_time: {}", stream.start_time());
34                println!("\tduration (stream timebase): {}", stream.duration());
35                println!(
36                    "\tduration (seconds): {:.2}",
37                    stream.duration() as f64 * f64::from(stream.time_base())
38                );
39                println!("\tframes: {}", stream.frames());
40                println!("\tdisposition: {:?}", stream.disposition());
41                println!("\tdiscard: {:?}", stream.discard());
42                println!("\trate: {}", stream.rate());
43
44                let codec =
45                    ffmpeg_rs::codec::context::Context::from_parameters(stream.parameters())?;
46                println!("\tmedium: {:?}", codec.medium());
47                println!("\tid: {:?}", codec.id());
48
49                if codec.medium() == ffmpeg_rs::media::Type::Video {
50                    if let Ok(video) = codec.decoder().video() {
51                        println!("\tbit_rate: {}", video.bit_rate());
52                        println!("\tmax_rate: {}", video.max_bit_rate());
53                        println!("\tdelay: {}", video.delay());
54                        println!("\tvideo.width: {}", video.width());
55                        println!("\tvideo.height: {}", video.height());
56                        println!("\tvideo.format: {:?}", video.format());
57                        println!("\tvideo.has_b_frames: {}", video.has_b_frames());
58                        println!("\tvideo.aspect_ratio: {}", video.aspect_ratio());
59                        println!("\tvideo.color_space: {:?}", video.color_space());
60                        println!("\tvideo.color_range: {:?}", video.color_range());
61                        println!("\tvideo.color_primaries: {:?}", video.color_primaries());
62                        println!(
63                            "\tvideo.color_transfer_characteristic: {:?}",
64                            video.color_transfer_characteristic()
65                        );
66                        println!("\tvideo.chroma_location: {:?}", video.chroma_location());
67                        println!("\tvideo.references: {}", video.references());
68                        println!("\tvideo.intra_dc_precision: {}", video.intra_dc_precision());
69                    }
70                } else if codec.medium() == ffmpeg_rs::media::Type::Audio {
71                    if let Ok(audio) = codec.decoder().audio() {
72                        println!("\tbit_rate: {}", audio.bit_rate());
73                        println!("\tmax_rate: {}", audio.max_bit_rate());
74                        println!("\tdelay: {}", audio.delay());
75                        println!("\taudio.rate: {}", audio.rate());
76                        println!("\taudio.channels: {}", audio.channels());
77                        println!("\taudio.format: {:?}", audio.format());
78                        println!("\taudio.frames: {}", audio.frames());
79                        println!("\taudio.align: {}", audio.align());
80                        println!("\taudio.channel_layout: {:?}", audio.channel_layout());
81                    }
82                }
83            }
84        }
85
86        Err(error) => println!("error: {}", error),
87    }
88    Ok(())
89}
metadata/metadata.rs

metadata/
metadata.rs
