add ffmpeg feature

src/utils/video_utils.rs

@@ -1,14 +1,14 @@
-use std::{fs::File, io::Write};
+// use std::{fs::File, io::Write};
 
-use ffmpeg_next as ffmpeg;
+// use ffmpeg_next as ffmpeg;
 
-#[allow(unused)]
-fn save_file(
-    frame: &ffmpeg::frame::Video,
-    index: usize,
-) -> std::result::Result<(), std::io::Error> {
-    let mut file = File::create(format!("frame{}.ppm", index))?;
-    file.write_all(format!("P6\n{} {}\n255\n", frame.width(), frame.height()).as_bytes())?;
-    file.write_all(frame.data(0))?;
-    Ok(())
-}
+// #[allow(unused)]
+// fn save_file(
+//     frame: &ffmpeg::frame::Video,
+//     index: usize,
+// ) -> std::result::Result<(), std::io::Error> {
+//     let mut file = File::create(format!("frame{}.ppm", index))?;
+//     file.write_all(format!("P6\n{} {}\n255\n", frame.width(), frame.height()).as_bytes())?;
+//     file.write_all(frame.data(0))?;
+//     Ok(())
+// }