28b7a82ac1
Read chapters from an input context and add chapters to an output context. Note: unlike avformat_new_stream, the equivalent function for chapter is private: avpriv_new_chapter (part of libavformat/internal.h). I couldn't find any other solution but re-implementing it in format::context::output::add_chapter.
53 lines
1.5 KiB
Rust
53 lines
1.5 KiB
Rust
extern crate ffmpeg;
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use std::env;
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fn main() {
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ffmpeg::init().unwrap();
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match ffmpeg::format::input(&env::args().nth(1).expect("missing input file name")) {
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Ok(ictx) => {
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println!("Nb chapters: {}", ictx.nb_chapters());
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for chapter in ictx.chapters() {
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println!("chapter id {}:", chapter.id());
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println!("\ttime_base: {}", chapter.time_base());
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println!("\tstart: {}", chapter.start());
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println!("\tend: {}", chapter.end());
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for (k, v) in chapter.metadata().iter() {
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println!("\t{}: {}", k, v);
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}
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}
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let mut octx = ffmpeg::format::output(&"test.mkv".to_owned()).expect(&format!("Couldn't open test file"));
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for chapter in ictx.chapters() {
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let title = match chapter.metadata().get("title") {
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Some(title) => String::from(title),
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None => String::new(),
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};
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match octx.add_chapter(chapter.id(), chapter.time_base(), chapter.start(), chapter.end(), &title) {
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Ok(chapter) => println!("Added chapter with id {} to output", chapter.id()),
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Err(error) => println!("Error adding chapter with id: {} - {}", chapter.id(), error),
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}
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}
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println!("\nOuput: nb chapters: {}", octx.nb_chapters());
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for chapter in octx.chapters() {
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println!("chapter id {}:", chapter.id());
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println!("\ttime_base: {}", chapter.time_base());
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println!("\tstart: {}", chapter.start());
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println!("\tend: {}", chapter.end());
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for (k, v) in chapter.metadata().iter() {
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println!("\t{}: {}", k, v);
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}
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}
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}
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Err(error) =>
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println!("error: {}", error)
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}
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}
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