webmetro/src/commands/dump.rs

37 lines
961 B
Rust

use std::error::Error;
use clap::{App, AppSettings, ArgMatches, SubCommand};
use futures::Async;
use super::stdin_stream;
use webmetro::{
stream_parser::StreamEbml,
webm::{
SimpleBlock,
WebmElement::*
}
};
pub fn options() -> App<'static, 'static> {
SubCommand::with_name("dump")
.setting(AppSettings::Hidden)
.about("Dumps WebM parsing events from parsing stdin")
}
pub fn run(_args: &ArgMatches) -> Result<(), Box<Error>> {
let mut events = stdin_stream().parse_ebml();
// stdin is sync so Async::NotReady will never happen
while let Ok(Async::Ready(Some(element))) = events.poll_event() {
match element {
// suppress printing byte arrays
Tracks(slice) => println!("Tracks[{}]", slice.len()),
SimpleBlock(SimpleBlock {timecode, ..}) => println!("SimpleBlock@{}", timecode),
other => println!("{:?}", other)
}
}
Ok(())
}