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677c35a6fd
...
7b1681d85d
7 changed files with 49 additions and 494 deletions
|
@ -7,13 +7,9 @@ date = "230101"
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[source]
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files = ["C01.mp4", "C02.mp4", "C03.mp4"]
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stereo = false
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start = "1"
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start = "2"
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end = "12"
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fast = [["6", "8"], ["10", "11"]]
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questions = [
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["1.5", "3", "Hallo liebes Publikum. Ich habe leider meine Frage vergessen. Bitte entschuldigt die Störung."],
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["3.5", "5", "Ah jetzt weiß ich es wieder. Meine Frage war: Was war meine Frage?"]
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]
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fast = [["5", "7"], ["9", "11"]]
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[source.metadata]
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source_duration = "12.53000"
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@ -26,6 +22,5 @@ source_sample_rate = 48000
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preprocessed = false
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asked_start_end = true
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asked_fast = true
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asked_questions = true
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rendered = false
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transcoded = []
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@ -10,10 +10,7 @@ license = "EPL-2.0"
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[dependencies]
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anyhow = "1.0"
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camino = "1.1"
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console = "0.15"
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clap = { version = "4.4", features = ["derive"] }
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fontconfig = "0.8"
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harfbuzz_rs = "2.0"
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indexmap = "2.2"
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rational = "1.5"
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serde = { version = "1.0.188", features = ["derive"] }
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@ -7,7 +7,7 @@ use std::{
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str::FromStr
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};
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use svgwriter::{
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tags::{Group, Rect, TagWithPresentationAttributes as _, Text},
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tags::{Group, Rect, TagWithPresentationAttributes, Text},
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Graphic
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};
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@ -134,14 +134,14 @@ impl Debug for Language<'_> {
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}
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#[repr(u16)]
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pub(crate) enum FontSize {
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enum FontSize {
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Huge = 72,
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Large = 56,
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Big = 44
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}
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#[repr(u16)]
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pub(crate) enum FontWeight {
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enum FontWeight {
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Normal = 400,
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SemiBold = 500,
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Bold = 700
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138
src/main.rs
138
src/main.rs
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@ -3,19 +3,16 @@
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#![forbid(elided_lifetimes_in_paths, unsafe_code)]
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mod iotro;
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mod question;
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mod render;
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mod time;
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use self::{
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iotro::Language,
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question::Question,
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use crate::{
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render::{ffmpeg::FfmpegOutputFormat, Renderer},
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time::{parse_date, parse_time, Date, Time}
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};
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use camino::Utf8PathBuf as PathBuf;
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use clap::Parser;
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use console::style;
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use iotro::Language;
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use rational::Rational;
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use serde::{Deserialize, Serialize};
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use serde_with::{serde_as, DisplayFromStr};
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@ -172,15 +169,9 @@ struct ProjectSource {
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start: Option<Time>,
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#[serde_as(as = "Option<DisplayFromStr>")]
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end: Option<Time>,
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#[serde(default)]
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#[serde_as(as = "Vec<(DisplayFromStr, DisplayFromStr)>")]
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fast: Vec<(Time, Time)>,
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#[serde(default)]
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#[serde_as(as = "Vec<(DisplayFromStr, DisplayFromStr, _)>")]
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questions: Vec<(Time, Time, String)>,
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metadata: Option<ProjectSourceMetadata>
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}
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@ -204,25 +195,10 @@ struct ProjectSourceMetadata {
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#[derive(Default, Deserialize, Serialize)]
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struct ProjectProgress {
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#[serde(default)]
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preprocessed: bool,
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#[serde(default)]
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asked_start_end: bool,
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#[serde(default)]
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asked_fast: bool,
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#[serde(default)]
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asked_questions: bool,
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#[serde(default)]
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rendered_assets: bool,
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#[serde(default)]
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rendered: bool,
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#[serde(default)]
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transcoded: BTreeSet<Resolution>
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}
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@ -230,44 +206,29 @@ fn ask(question: impl Display) -> String {
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let mut stdout = io::stdout().lock();
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let mut stdin = io::stdin().lock();
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write!(
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stdout,
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"{} {} ",
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style(question).bold().magenta(),
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style(">").cyan()
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)
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.unwrap();
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stdout.flush().unwrap();
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writeln!(stdout, "{question}").unwrap();
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let mut line = String::new();
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write!(stdout, "> ").unwrap();
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stdout.flush().unwrap();
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stdin.read_line(&mut line).unwrap();
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line.trim().to_owned()
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}
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fn ask_time(question: impl Display + Copy) -> Time {
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fn ask_time(question: impl Display) -> Time {
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let mut stdout = io::stdout().lock();
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let mut stdin = io::stdin().lock();
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writeln!(stdout, "{question}").unwrap();
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let mut line = String::new();
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loop {
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line.clear();
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write!(
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stdout,
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"{} {} ",
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style(question).bold().magenta(),
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style(">").cyan()
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)
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.unwrap();
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write!(stdout, "> ").unwrap();
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stdout.flush().unwrap();
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stdin.read_line(&mut line).unwrap();
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let line = line.trim();
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match parse_time(line) {
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Ok(time) => return time,
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Err(err) => writeln!(
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stdout,
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"{} {line:?}: {err}",
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style("Invalid Input").bold().red()
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)
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.unwrap()
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Err(err) => writeln!(stdout, "Invalid Input {line:?}: {err}").unwrap()
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}
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}
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}
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@ -311,14 +272,10 @@ fn main() {
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print!("I found the following source files:");
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for f in &files {
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print!(" {}", style(f).bold().yellow());
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print!(" {f}");
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}
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println!();
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println!(
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"{} Which source files would you like to use? (specify multiple files separated by whitespace)",
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style("?").bold().yellow()
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);
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files = ask("files")
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files = ask("Which source files would you like to use? (specify multiple files separated by whitespace)")
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.split_ascii_whitespace()
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.map(String::from)
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.collect();
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@ -338,7 +295,6 @@ fn main() {
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start: None,
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end: None,
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fast: Vec::new(),
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questions: Vec::new(),
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metadata: None
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},
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progress: Default::default()
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@ -358,21 +314,14 @@ fn main() {
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fs::write(&project_path, toml::to_string(&project).unwrap().as_bytes()).unwrap();
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}
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println!();
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println!(
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" {} Preprocessed video: {}",
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style("==>").bold().cyan(),
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style(recording).bold().yellow()
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);
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// ask the user about start and end times
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if !project.progress.asked_start_end {
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println!(
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"{} What is the first/last second you want included?",
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style("?").bold().yellow()
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);
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project.source.start = Some(ask_time("first"));
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project.source.end = Some(ask_time("last "));
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project.source.start = Some(ask_time(format_args!(
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"Please take a look at the file {recording} and tell me the first second you want included"
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)));
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project.source.end = Some(ask_time(format_args!(
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"Please take a look at the file {recording} and tell me the last second you want included"
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)));
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project.progress.asked_start_end = true;
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fs::write(&project_path, toml::to_string(&project).unwrap().as_bytes()).unwrap();
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@ -380,16 +329,16 @@ fn main() {
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// ask the user about fast forward times
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if !project.progress.asked_fast {
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println!(
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"{} Which sections of the video do you want fast-forwarded? (0 to finish)",
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style("?").bold().yellow()
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);
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loop {
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let start = ask_time("from");
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let start = ask_time(format_args!(
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"Please take a look at the file {recording} and tell me the first second you want fast-forwarded. You may reply with `0` if there are no more fast-forward sections"
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));
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if start.seconds == 0 && start.micros == 0 {
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break;
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}
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let end = ask_time("to ");
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let end = ask_time(format_args!(
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"Please tell me the last second you want fast-forwarded"
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));
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project.source.fast.push((start, end));
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}
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project.progress.asked_fast = true;
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@ -397,34 +346,6 @@ fn main() {
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fs::write(&project_path, toml::to_string(&project).unwrap().as_bytes()).unwrap();
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}
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// ask the user about questions from the audience that should be subtitled
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if !project.progress.asked_questions {
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println!(
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"{} In which sections of the video were questions asked you want subtitles for? (0 to finish)",
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style("?").bold().yellow()
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);
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loop {
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let start = ask_time("from");
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if start.seconds == 0 && start.micros == 0 {
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break;
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}
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let end = ask_time("to ");
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let text = ask("text");
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project.source.questions.push((start, end, text));
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}
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project.progress.asked_questions = true;
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fs::write(&project_path, toml::to_string(&project).unwrap().as_bytes()).unwrap();
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}
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// render the assets
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if !project.progress.rendered_assets {
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renderer.render_assets(&project).unwrap();
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project.progress.rendered_assets = true;
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fs::write(&project_path, toml::to_string(&project).unwrap().as_bytes()).unwrap();
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}
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// render the video
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let mut videos = Vec::new();
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videos.push(if project.progress.rendered {
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@ -457,18 +378,9 @@ fn main() {
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}
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}
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println!();
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println!(
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" {} {}",
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style("==>").bold().cyan(),
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style("DONE :)").bold()
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);
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println!("\x1B[1m ==> DONE :)\x1B[0m");
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println!(" Videos:");
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for v in &videos {
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println!(
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" {} {}",
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style("->").bold().cyan(),
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style(v).bold().yellow()
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);
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println!(" -> {v}");
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}
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}
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152
src/question.rs
152
src/question.rs
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@ -1,152 +0,0 @@
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use crate::{iotro::Language, Resolution};
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use fontconfig::Fontconfig;
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use harfbuzz_rs::{Face, Font, Owned, UnicodeBuffer};
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use std::sync::OnceLock;
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use svgwriter::{
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tags::{Group, Path, Rect, TSpan, TagWithPresentationAttributes as _, Text},
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Data, Graphic, Transform
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};
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pub(crate) struct Question {
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res: Resolution,
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g: Group
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}
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impl Question {
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pub(crate) fn new(res: Resolution, lang: &Language<'_>, str: &str) -> Self {
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static FONT: OnceLock<Owned<Font<'static>>> = OnceLock::new();
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let font = FONT.get_or_init(|| {
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let fc = Fontconfig::new().unwrap();
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let font_path = fc.find("Noto Sans", None).unwrap().path;
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let face = Face::from_file(font_path, 0).unwrap();
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Font::new(face)
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});
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let upem = font.face().upem();
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// constants
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let border_r = 12;
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let font_size = 44;
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let line_height = font_size * 6 / 5;
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let padding = font_size / 2;
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let margin_x = 240;
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let margin_y = padding * 3 / 2;
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let question_offset = 64;
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let question_width = 240;
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// calculated
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let box_width = 1920 - 2 * margin_x;
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let text_width = box_width - 2 * padding;
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// calculates the width of the given string
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let width_of = |s: &str| {
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let width: i32 =
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harfbuzz_rs::shape(font, UnicodeBuffer::new().add_str(s), &[])
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.get_glyph_positions()
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.iter()
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.map(|glyph_pos| glyph_pos.x_advance)
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.sum();
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(width * font_size) / upem as i32
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};
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let space_width = width_of(" ");
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// lay out the text
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let mut text = Text::new()
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.with_dominant_baseline("hanging")
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.with_transform(
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Transform::new().translate(padding, padding + font_size / 2 + border_r)
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);
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let words = str.split_whitespace();
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let mut text_height = 0;
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let mut text_x = 0;
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for word in words {
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let word_width = width_of(word);
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if text_x + word_width > text_width {
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text_x = 0;
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text_height += line_height;
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}
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text.push(
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TSpan::new()
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.with_x(text_x)
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.with_y(text_height)
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.append(word.to_owned())
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);
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text_x += word_width + space_width;
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}
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text_height += font_size;
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// calculated
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let box_height = text_height + 2 * padding + font_size / 2 + border_r;
|
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|
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let mut g = Group::new()
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.with_fill("white")
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.with_font_family("Noto Sans")
|
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.with_font_size(font_size)
|
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.with_transform(
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Transform::new().translate(margin_x, 1080 - margin_y - box_height)
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);
|
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|
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let mut outline = Data::new();
|
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outline.move_by(border_r, 0).horiz_line_to(question_offset);
|
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outline
|
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.vert_line_by(-font_size / 2)
|
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.arc_by(border_r, border_r, 0, false, true, border_r, -border_r)
|
||||
.horiz_line_by(question_width)
|
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.arc_by(border_r, border_r, 0, false, true, border_r, border_r)
|
||||
.vert_line_by(font_size)
|
||||
.arc_by(border_r, border_r, 0, false, true, -border_r, border_r)
|
||||
.horiz_line_by(-question_width)
|
||||
.arc_by(border_r, border_r, 0, false, true, -border_r, -border_r)
|
||||
.vert_line_by(-font_size / 2)
|
||||
.move_by(question_width + 2 * border_r, 0);
|
||||
outline
|
||||
.horiz_line_to(box_width - border_r)
|
||||
.arc_by(border_r, border_r, 0, false, true, border_r, border_r)
|
||||
.vert_line_by(box_height - 2 * border_r)
|
||||
.arc_by(border_r, border_r, 0, false, true, -border_r, border_r)
|
||||
.horiz_line_to(border_r)
|
||||
.arc_by(border_r, border_r, 0, false, true, -border_r, -border_r)
|
||||
.vert_line_to(border_r)
|
||||
.arc_by(border_r, border_r, 0, false, true, border_r, -border_r);
|
||||
g.push(
|
||||
Path::new()
|
||||
.with_stroke("#fff")
|
||||
.with_stroke_width(3)
|
||||
.with_fill("#000")
|
||||
.with_fill_opacity(".3")
|
||||
.with_d(outline)
|
||||
);
|
||||
g.push(
|
||||
Text::new()
|
||||
.with_x(question_offset + question_width / 2 + border_r)
|
||||
.with_y(0)
|
||||
.with_dominant_baseline("middle")
|
||||
.with_text_anchor("middle")
|
||||
.with_font_weight(600)
|
||||
.append("Question")
|
||||
);
|
||||
g.push(text);
|
||||
|
||||
Self { res, g }
|
||||
}
|
||||
|
||||
pub(crate) fn finish(self) -> Graphic {
|
||||
let mut svg = Graphic::new();
|
||||
svg.set_width(self.res.width());
|
||||
svg.set_height(self.res.height());
|
||||
svg.set_view_box("0 0 1920 1080");
|
||||
svg.push(self.g);
|
||||
svg
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
#[test]
|
||||
fn question() {
|
||||
let svg = Question::new(
|
||||
Resolution::FullHD,
|
||||
&Language::default(),
|
||||
"Hallo Welt! Dies ist eine sehr kluge Frage aus dem Publikum. Die Frage ist nämlich: Was ist eigentlich die Frage?".into()
|
||||
)
|
||||
.finish();
|
||||
std::fs::write("question.svg", svg.to_string_pretty()).unwrap();
|
||||
}
|
|
@ -19,7 +19,6 @@ pub(crate) enum Filter {
|
|||
overlay_input: Cow<'static, str>,
|
||||
x: Cow<'static, str>,
|
||||
y: Cow<'static, str>,
|
||||
repeatlast: bool,
|
||||
output: Cow<'static, str>
|
||||
},
|
||||
|
||||
|
@ -38,22 +37,6 @@ pub(crate) enum Filter {
|
|||
output: Cow<'static, str>
|
||||
},
|
||||
|
||||
/// Fade only video using the alpha channel.
|
||||
FadeAlpha {
|
||||
input: Cow<'static, str>,
|
||||
direction: &'static str,
|
||||
start: Time,
|
||||
duration: Time,
|
||||
output: Cow<'static, str>
|
||||
},
|
||||
|
||||
/// Offset the PTS of the video by the amount of seconds.
|
||||
VideoOffset {
|
||||
input: Cow<'static, str>,
|
||||
seconds: Time,
|
||||
output: Cow<'static, str>
|
||||
},
|
||||
|
||||
/// Generate silence. The video is copied.
|
||||
GenerateSilence {
|
||||
video: Cow<'static, str>,
|
||||
|
@ -94,13 +77,11 @@ impl Filter {
|
|||
overlay_input,
|
||||
x,
|
||||
y,
|
||||
repeatlast,
|
||||
output
|
||||
} => {
|
||||
let repeatlast: u8 = (*repeatlast).into();
|
||||
writeln!(
|
||||
complex,
|
||||
"{}{}overlay=x={x}:y={y}:repeatlast={repeatlast}:eval=init{};",
|
||||
"{}{}overlay=x={x}:y={y}{};",
|
||||
channel('v', video_input),
|
||||
channel('v', overlay_input),
|
||||
channel('v', output)
|
||||
|
@ -148,34 +129,6 @@ impl Filter {
|
|||
)?;
|
||||
},
|
||||
|
||||
Self::FadeAlpha {
|
||||
input,
|
||||
direction,
|
||||
start,
|
||||
duration,
|
||||
output
|
||||
} => {
|
||||
writeln!(
|
||||
complex,
|
||||
"{}fade={direction}:st={start}:d={duration}:alpha=1{};",
|
||||
channel('v', input),
|
||||
channel('v', output)
|
||||
)?;
|
||||
},
|
||||
|
||||
Self::VideoOffset {
|
||||
input,
|
||||
seconds,
|
||||
output
|
||||
} => {
|
||||
writeln!(
|
||||
complex,
|
||||
"{}setpts=PTS+{seconds}/TB{};",
|
||||
channel('v', input),
|
||||
channel('v', output)
|
||||
)?;
|
||||
},
|
||||
|
||||
Self::GenerateSilence { video, output } => {
|
||||
writeln!(
|
||||
complex,
|
||||
|
|
|
@ -7,14 +7,12 @@ use self::{
|
|||
};
|
||||
use crate::{
|
||||
iotro::{intro, outro},
|
||||
question::Question,
|
||||
render::ffmpeg::{Ffmpeg, FfmpegInput},
|
||||
time::{format_date, format_time, Time},
|
||||
time::{format_date, Time},
|
||||
Project, ProjectLecture, ProjectSourceMetadata, Resolution
|
||||
};
|
||||
use anyhow::{bail, Context};
|
||||
use camino::{Utf8Path as Path, Utf8PathBuf as PathBuf};
|
||||
use console::style;
|
||||
use std::{
|
||||
borrow::Cow,
|
||||
collections::VecDeque,
|
||||
|
@ -35,10 +33,6 @@ const TRANSITION_LEN: Time = Time {
|
|||
seconds: 0,
|
||||
micros: 200_000
|
||||
};
|
||||
const QUESTION_FADE_LEN: Time = Time {
|
||||
seconds: 0,
|
||||
micros: 400_000
|
||||
};
|
||||
const FF_MULTIPLIER: usize = 8;
|
||||
// logo sizes at full hd, will be scaled to source resolution
|
||||
const FF_LOGO_SIZE: usize = 128;
|
||||
|
@ -157,13 +151,14 @@ fn svg2mkv(
|
|||
ffmpeg.run()
|
||||
}
|
||||
|
||||
fn svg2png(svg: &Path, png: &Path, width: usize, height: usize) -> anyhow::Result<()> {
|
||||
fn svg2png(svg: &Path, png: &Path, size: usize) -> anyhow::Result<()> {
|
||||
let mut cmd = cmd();
|
||||
let size = size.to_string();
|
||||
cmd.arg("inkscape")
|
||||
.arg("-w")
|
||||
.arg(width.to_string())
|
||||
.arg(&size)
|
||||
.arg("-h")
|
||||
.arg(height.to_string());
|
||||
.arg(&size);
|
||||
cmd.arg(svg).arg("-o").arg(png);
|
||||
|
||||
let status = cmd.status()?;
|
||||
|
@ -222,14 +217,6 @@ impl<'a> Renderer<'a> {
|
|||
self.target.join("outro.mkv")
|
||||
}
|
||||
|
||||
fn question_svg(&self, q_idx: usize) -> PathBuf {
|
||||
self.target.join(format!("question{q_idx}.svg"))
|
||||
}
|
||||
|
||||
fn question_png(&self, q_idx: usize) -> PathBuf {
|
||||
self.target.join(format!("question{q_idx}.png"))
|
||||
}
|
||||
|
||||
pub(crate) fn preprocess(&self, project: &mut Project) -> anyhow::Result<()> {
|
||||
assert!(!project.progress.preprocessed);
|
||||
|
||||
|
@ -240,13 +227,7 @@ impl<'a> Renderer<'a> {
|
|||
}
|
||||
drop(file);
|
||||
|
||||
println!();
|
||||
println!(
|
||||
" {} {}",
|
||||
style("==>").bold().cyan(),
|
||||
style("Concatenating Video and Normalising Audio ...").bold()
|
||||
);
|
||||
|
||||
println!("\x1B[1m ==> Concatenating Video and Normalising Audio ...\x1B[0m");
|
||||
let source_sample_rate =
|
||||
ffprobe_audio("stream=sample_rate", &recording_txt)?.parse()?;
|
||||
let recording_mkv = self.recording_mkv();
|
||||
|
@ -278,26 +259,15 @@ impl<'a> Renderer<'a> {
|
|||
source_res,
|
||||
source_sample_rate
|
||||
});
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Prepare assets like intro, outro and questions.
|
||||
pub(crate) fn render_assets(&self, project: &Project) -> anyhow::Result<()> {
|
||||
let metadata = project.source.metadata.as_ref().unwrap();
|
||||
|
||||
println!();
|
||||
println!(
|
||||
" {} {}",
|
||||
style("==>").bold().cyan(),
|
||||
style("Preparing assets ...").bold()
|
||||
);
|
||||
println!("\x1B[1m ==> Preparing assets ...\x1B[0m");
|
||||
|
||||
// render intro to svg then mp4
|
||||
let intro_svg = self.target.join("intro.svg");
|
||||
fs::write(
|
||||
&intro_svg,
|
||||
intro(metadata.source_res, &project.lecture)
|
||||
intro(source_res, &project.lecture)
|
||||
.to_string_pretty()
|
||||
.into_bytes()
|
||||
)?;
|
||||
|
@ -308,7 +278,7 @@ impl<'a> Renderer<'a> {
|
|||
let outro_svg = self.target.join("outro.svg");
|
||||
fs::write(
|
||||
&outro_svg,
|
||||
outro(&project.lecture.lang, metadata.source_res)
|
||||
outro(&project.lecture.lang, source_res)
|
||||
.to_string_pretty()
|
||||
.into_bytes()
|
||||
)?;
|
||||
|
@ -322,8 +292,7 @@ impl<'a> Renderer<'a> {
|
|||
include_bytes!(concat!(env!("CARGO_MANIFEST_DIR"), "/assets/logo.svg"))
|
||||
)?;
|
||||
let logo_png = self.target.join("logo.png");
|
||||
let logo_size = LOGO_SIZE * metadata.source_res.width() / 1920;
|
||||
svg2png(&logo_svg, &logo_png, logo_size, logo_size)?;
|
||||
svg2png(&logo_svg, &logo_png, LOGO_SIZE * source_res.width() / 1920)?;
|
||||
|
||||
// copy fastforward then render to png
|
||||
let fastforward_svg = self.target.join("fastforward.svg");
|
||||
|
@ -335,31 +304,12 @@ impl<'a> Renderer<'a> {
|
|||
))
|
||||
)?;
|
||||
let fastforward_png = self.target.join("fastforward.png");
|
||||
let ff_logo_size = FF_LOGO_SIZE * metadata.source_res.width() / 1920;
|
||||
svg2png(
|
||||
&fastforward_svg,
|
||||
&fastforward_png,
|
||||
ff_logo_size,
|
||||
ff_logo_size
|
||||
FF_LOGO_SIZE * source_res.width() / 1920
|
||||
)?;
|
||||
|
||||
// write questions then render to png
|
||||
for (q_idx, (_, _, q_text)) in project.source.questions.iter().enumerate() {
|
||||
let q = Question::new(metadata.source_res, &project.lecture.lang, q_text)
|
||||
.finish()
|
||||
.to_string_pretty()
|
||||
.into_bytes();
|
||||
let q_svg = self.question_svg(q_idx);
|
||||
let q_png = self.question_png(q_idx);
|
||||
fs::write(&q_svg, q)?;
|
||||
svg2png(
|
||||
&q_svg,
|
||||
&q_png,
|
||||
metadata.source_res.width(),
|
||||
metadata.source_res.height()
|
||||
)?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
|
@ -399,24 +349,21 @@ impl<'a> Renderer<'a> {
|
|||
let mut part3: Cow<'static, str> = outro.into();
|
||||
|
||||
// the recording is fun because of all the fast forwarding
|
||||
let mut part2 = VecDeque::<Cow<'static, str>>::new();
|
||||
let mut part2_ts = VecDeque::new();
|
||||
let mut part2 = VecDeque::new();
|
||||
let mut part2_start_of_the_end = None;
|
||||
let mut part2_end_of_the_start = None;
|
||||
|
||||
// ok so ff is fun. we will add the ff'ed section as well as the part between
|
||||
// the previous ff'ed section and our new section, unless we are the first.
|
||||
// the previous ff'ed section and our new section, unless we are the first
|
||||
project.source.fast.sort();
|
||||
for (i, (ff_st, ff_end)) in project.source.fast.iter().rev().enumerate() {
|
||||
if let Some(prev_end) = part2_end_of_the_start {
|
||||
let duration = prev_end - *ff_end;
|
||||
let recffbetween = ffmpeg.add_input(FfmpegInput {
|
||||
start: Some(*ff_end),
|
||||
duration: Some(duration),
|
||||
duration: Some(prev_end - *ff_end),
|
||||
..FfmpegInput::new(rec_file.clone())
|
||||
});
|
||||
part2.push_front(recffbetween.into());
|
||||
part2_ts.push_front(Some((*ff_end, duration)));
|
||||
} else {
|
||||
part2_start_of_the_end = Some(*ff_end);
|
||||
}
|
||||
|
@ -436,7 +383,6 @@ impl<'a> Renderer<'a> {
|
|||
output: recff.clone().into()
|
||||
});
|
||||
part2.push_front(recff.into());
|
||||
part2_ts.push_front(None);
|
||||
}
|
||||
|
||||
// if the recording was not ff'ed, perform a normal trim
|
||||
|
@ -451,112 +397,23 @@ impl<'a> Renderer<'a> {
|
|||
..FfmpegInput::new(rec_file.clone())
|
||||
});
|
||||
part2.push_back(rectrim.into());
|
||||
part2_ts.push_back(Some((start, part2_last_part_duration)));
|
||||
}
|
||||
// otherwise add the first and last parts separately
|
||||
else {
|
||||
let duration = part2_end_of_the_start.unwrap() - start;
|
||||
let rectrimst = ffmpeg.add_input(FfmpegInput {
|
||||
start: Some(start),
|
||||
duration: Some(duration),
|
||||
duration: Some(part2_end_of_the_start.unwrap() - start),
|
||||
..FfmpegInput::new(rec_file.clone())
|
||||
});
|
||||
part2.push_front(rectrimst.into());
|
||||
part2_ts.push_front(Some((start, duration)));
|
||||
|
||||
let part2_start_of_the_end = part2_start_of_the_end.unwrap();
|
||||
part2_last_part_duration = end - part2_start_of_the_end;
|
||||
part2_last_part_duration = end - part2_start_of_the_end.unwrap();
|
||||
let rectrimend = ffmpeg.add_input(FfmpegInput {
|
||||
start: Some(part2_start_of_the_end),
|
||||
start: Some(part2_start_of_the_end.unwrap()),
|
||||
duration: Some(part2_last_part_duration),
|
||||
..FfmpegInput::new(rec_file.clone())
|
||||
});
|
||||
part2.push_back(rectrimend.into());
|
||||
part2_ts.push_back(Some((part2_start_of_the_end, part2_last_part_duration)));
|
||||
}
|
||||
|
||||
// ok now we have a bunch of parts and a bunch of questions that want to get
|
||||
// overlayed over those parts.
|
||||
project.source.questions.sort();
|
||||
let mut q_idx = 0;
|
||||
for (i, ts) in part2_ts.iter().enumerate() {
|
||||
let Some((start, duration)) = ts else {
|
||||
continue;
|
||||
};
|
||||
loop {
|
||||
if q_idx >= project.source.questions.len() {
|
||||
break;
|
||||
}
|
||||
let (q_start, q_end, _) = &project.source.questions[q_idx];
|
||||
if q_start < start {
|
||||
bail!(
|
||||
"Question starting at {} did not fit into the video",
|
||||
format_time(*q_start)
|
||||
);
|
||||
}
|
||||
if q_start >= start && *q_end <= *start + *duration {
|
||||
// add the question as input to ffmpeg
|
||||
let q_inp = ffmpeg.add_input(FfmpegInput {
|
||||
loop_input: true,
|
||||
fps: Some(project.source.metadata.as_ref().unwrap().source_fps),
|
||||
duration: Some(*q_end - *q_start),
|
||||
..FfmpegInput::new(self.question_png(q_idx))
|
||||
});
|
||||
|
||||
// fade in the question
|
||||
let q_fadein = format!("q{q_idx}fin");
|
||||
ffmpeg.add_filter(Filter::FadeAlpha {
|
||||
input: q_inp.into(),
|
||||
direction: "in",
|
||||
start: Time {
|
||||
seconds: 0,
|
||||
micros: 0
|
||||
},
|
||||
duration: QUESTION_FADE_LEN,
|
||||
output: q_fadein.clone().into()
|
||||
});
|
||||
|
||||
// fade out the question
|
||||
let q_fadeout = format!("q{q_idx}fout");
|
||||
ffmpeg.add_filter(Filter::FadeAlpha {
|
||||
input: q_fadein.into(),
|
||||
direction: "out",
|
||||
start: *q_end - *q_start - QUESTION_FADE_LEN,
|
||||
duration: QUESTION_FADE_LEN,
|
||||
output: q_fadeout.clone().into()
|
||||
});
|
||||
|
||||
// move the question to the correct timestamp
|
||||
let q_pts = format!("q{q_idx}pts");
|
||||
ffmpeg.add_filter(Filter::VideoOffset {
|
||||
input: q_fadeout.into(),
|
||||
seconds: *q_start - *start,
|
||||
output: q_pts.clone().into()
|
||||
});
|
||||
|
||||
// overlay the part in question
|
||||
let q_overlay = format!("q{q_idx}o");
|
||||
ffmpeg.add_filter(Filter::Overlay {
|
||||
video_input: part2[i].clone(),
|
||||
overlay_input: q_pts.into(),
|
||||
x: "0".into(),
|
||||
y: "0".into(),
|
||||
repeatlast: false,
|
||||
output: q_overlay.clone().into()
|
||||
});
|
||||
part2[i] = q_overlay.into();
|
||||
|
||||
q_idx += 1;
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
if q_idx < project.source.questions.len() {
|
||||
bail!(
|
||||
"Question starting at {} did not fit into the video before it was over",
|
||||
format_time(project.source.questions[q_idx].0)
|
||||
);
|
||||
}
|
||||
|
||||
// fade out the intro
|
||||
|
@ -634,7 +491,6 @@ impl<'a> Renderer<'a> {
|
|||
overlay_input: logoalpha.into(),
|
||||
x: format!("main_w-overlay_w-{overlay_off_x}").into(),
|
||||
y: format!("main_h-overlay_h-{overlay_off_y}").into(),
|
||||
repeatlast: true,
|
||||
output: overlay.into()
|
||||
});
|
||||
|
||||
|
@ -652,13 +508,7 @@ impl<'a> Renderer<'a> {
|
|||
) -> anyhow::Result<PathBuf> {
|
||||
let input = self.video_file_output();
|
||||
let output = self.video_file_res(res);
|
||||
|
||||
println!();
|
||||
println!(
|
||||
" {} {}",
|
||||
style("==>").bold().cyan(),
|
||||
style(format!("Rescaling to {}p", res.height())).bold()
|
||||
);
|
||||
println!("\x1B[1m ==> Rescaling to {}p\x1B[0m", res.height());
|
||||
|
||||
let mut ffmpeg = Ffmpeg::new(FfmpegOutput {
|
||||
video_bitrate: Some(res.bitrate()),
|
||||
|
|
Loading…
Reference in a new issue