ffplay_preview/
ffplay_preview.rs1use std::{
2 io::{Read, Write},
3 process::{Command, Stdio},
4};
5
6use ffmpeg_sidecar::command::FfmpegCommand;
7
8fn main() {
14 let mut ffmpeg = FfmpegCommand::new()
15 .realtime()
16 .format("lavfi")
17 .input("testsrc=size=1920x1080:rate=60")
18 .codec_video("rawvideo")
19 .format("avi")
20 .output("-")
21 .spawn()
22 .unwrap();
23
24 let mut ffplay = Command::new("ffplay")
25 .args("-i -".split(' '))
26 .stdin(Stdio::piped())
27 .spawn()
28 .unwrap();
29
30 let mut ffmpeg_stdout = ffmpeg.take_stdout().unwrap();
31 let mut ffplay_stdin = ffplay.stdin.take().unwrap();
32
33 let buf = &mut [0u8; 4096];
35 loop {
36 let n = ffmpeg_stdout.read(buf).unwrap();
37 if n == 0 {
38 break;
39 }
40 ffplay_stdin.write_all(&buf[..n]).unwrap();
41 }
42}