src/iotro.rs

@@ -191,8 +191,8 @@ impl Iotro {
 
 	fn finish(self) -> Graphic {
 		let mut svg = Graphic::new();
-		svg.set_width(self.res.width());
+		svg.set_width(self.res.width);
-		svg.set_height(self.res.height());
+		svg.set_height(self.res.height);
 		svg.set_view_box("0 0 1920 1080");
 		svg.push(
 			Rect::new()

src/main.rs

@@ -215,7 +215,7 @@ fn main() {
 
 	// rescale the video
 	if let Some(lowest_res) = args.transcode.or(preset.transcode) {
-		for res in Resolution::values().into_iter().rev() {
+		for res in Resolution::STANDARD_RESOLUTIONS.into_iter().rev() {
 			if res > project.source.metadata.as_ref().unwrap().source_res
 				|| res > args.transcode_start.unwrap_or(preset.transcode_start)
 				|| res < lowest_res

src/preset.rs

@@ -18,12 +18,14 @@ pub struct Preset {
 	pub docent: String,
 
 	/// Course language
-	#[serde(default = "Default::default")]
+	#[serde(default)]
 	#[serde_as(as = "DisplayFromStr")]
 	pub lang: Language<'static>,
 
 	// coding options
+	#[serde_as(as = "DisplayFromStr")]
 	pub transcode_start: Resolution,
+	#[serde_as(as = "Option<DisplayFromStr>")]
 	pub transcode: Option<Resolution>
 }
 
@@ -33,8 +35,8 @@ pub fn preset_23ws_malo2() -> Preset {
 		label: "Mathematische Logik II".into(),
 		docent: "Prof. E. Grädel".into(),
 		lang: GERMAN,
-		transcode_start: Resolution::WQHD,
+		transcode_start: "1440p".parse().unwrap(),
-		transcode: Some(Resolution::nHD)
+		transcode: Some("360p".parse().unwrap())
 	}
 }
 
@@ -44,8 +46,8 @@ pub fn preset_24ss_algomod() -> Preset {
 		label: "Algorithmische Modelltheorie".into(),
 		docent: "Prof. E. Grädel".into(),
 		lang: GERMAN,
-		transcode_start: Resolution::WQHD,
+		transcode_start: "1440p".parse().unwrap(),
-		transcode: Some(Resolution::HD)
+		transcode: Some("720p".parse().unwrap())
 	}
 }
 
@@ -55,8 +57,8 @@ pub fn preset_24ss_qc() -> Preset {
 		label: "Introduction to Quantum Computing".into(),
 		docent: "Prof. D. Unruh".into(),
 		lang: BRITISH,
-		transcode_start: Resolution::WQHD,
+		transcode_start: "1440p".parse().unwrap(),
-		transcode: Some(Resolution::HD)
+		transcode: Some("720p".parse().unwrap())
 	}
 }
 

src/project.rs

@@ -8,75 +8,142 @@ use crate::{
 use rational::Rational;
 use serde::{Deserialize, Serialize};
 use serde_with::{serde_as, DisplayFromStr};
-use std::{collections::BTreeSet, str::FromStr};
+use std::{
+	cmp,
+	collections::BTreeSet,
+	fmt::{self, Display, Formatter},
+	str::FromStr
+};
 
-macro_rules! resolutions {
+#[derive(Clone, Copy, Debug, Deserialize, Serialize)]
-	($($res:ident: $width:literal x $height:literal at $bitrate:literal in $format:ident),+) => {
+pub struct Resolution {
-		#[allow(non_camel_case_types, clippy::upper_case_acronyms)]
+	pub width: u32,
-		#[derive(Clone, Copy, Debug, Deserialize, Eq, Ord, PartialEq, PartialOrd, Serialize)]
+	pub height: u32
-		pub enum Resolution {
+}
-			$(
+
-				#[doc = concat!(stringify!($width), "x", stringify!($height))]
+impl Resolution {
-				$res
+	pub(crate) fn bitrate(self) -> u64 {
-			),+
+		// 640 * 360: 500k
+		if self.width <= 640 {
+			500_000
 		}
-
+		// 1280 * 720: 1M
-		const NUM_RESOLUTIONS: usize = {
+		else if self.width <= 1280 {
-			let mut num = 0;
+			1_000_000
-			$(num += 1; stringify!($res);)+
-			num
-		};
-
-		impl Resolution {
-			pub fn values() -> [Self; NUM_RESOLUTIONS] {
-				[$(Self::$res),+]
-			}
-
-			pub fn width(self) -> usize {
-				match self {
-					$(Self::$res => $width),+
-				}
-			}
-
-			pub fn height(self) -> usize {
-				match self {
-					$(Self::$res => $height),+
-				}
-			}
-
-			pub fn bitrate(self) -> u64 {
-				match self {
-					$(Self::$res => $bitrate),+
-				}
-			}
-
-			pub fn format(self) -> FfmpegOutputFormat {
-				match self {
-					$(Self::$res => FfmpegOutputFormat::$format),+
-				}
-			}
 		}
-
+		// 1920 * 1080: 2M
-		impl FromStr for Resolution {
+		else if self.width <= 1920 {
-			type Err = anyhow::Error;
+			2_000_000
-
-			fn from_str(s: &str) -> anyhow::Result<Self> {
-				Ok(match s {
-					$(concat!(stringify!($height), "p") => Self::$res,)+
-					_ => anyhow::bail!("Unknown Resolution: {s:?}")
-				})
-			}
 		}
+		// 2560 * 1440: 3M
+		else if self.width <= 2560 {
+			3_000_000
+		}
+		// 3840 * 2160: 4M
+		// TODO die bitrate von 4M ist absolut an den haaren herbeigezogen
+		else if self.width <= 3840 {
+			4_000_000
+		}
+		// we'll cap everything else at 5M for no apparent reason
+		else {
+			5_000_000
+		}
+	}
+
+	pub(crate) fn default_codec(self) -> FfmpegOutputFormat {
+		if self.width <= 1920 {
+			FfmpegOutputFormat::Av1Opus
+		} else {
+			FfmpegOutputFormat::AvcAac
+		}
+	}
+
+	pub const STANDARD_RESOLUTIONS: [Self; 5] = [
+		Self {
+			width: 640,
+			height: 360
+		},
+		Self {
+			width: 1280,
+			height: 720
+		},
+		Self {
+			width: 1920,
+			height: 1080
+		},
+		Self {
+			width: 2560,
+			height: 1440
+		},
+		Self {
+			width: 3840,
+			height: 2160
+		}
+	];
+}
+
+impl Display for Resolution {
+	fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+		write!(f, "{}p", self.height)
 	}
 }
 
-resolutions! {
+impl FromStr for Resolution {
-	nHD: 640 x 360 at 500_000 in AvcAac,
+	type Err = anyhow::Error;
-	HD: 1280 x 720 at 1_000_000 in AvcAac,
+
-	FullHD: 1920 x 1080 at 750_000 in Av1Opus,
+	fn from_str(s: &str) -> anyhow::Result<Self> {
-	WQHD: 2560 x 1440 at 1_000_000 in Av1Opus,
+		Ok(match s.to_lowercase().as_str() {
-	// TODO qsx muss mal sagen wieviel bitrate für 4k
+			"360p" | "nhd" => Self {
-	UHD: 3840 x 2160 at 2_000_000 in Av1Opus
+				width: 640,
+				height: 360
+			},
+			"540p" | "qhd" => Self {
+				width: 960,
+				height: 540
+			},
+			"720p" | "hd" => Self {
+				width: 1280,
+				height: 720
+			},
+			"900p" | "hd+" => Self {
+				width: 1600,
+				height: 900
+			},
+			"1080p" | "fhd" | "fullhd" => Self {
+				width: 1920,
+				height: 1080
+			},
+			"1440p" | "wqhd" => Self {
+				width: 2560,
+				height: 1440
+			},
+			"2160p" | "4k" | "uhd" => Self {
+				width: 3840,
+				height: 2160
+			},
+			_ => anyhow::bail!("Unknown Resolution: {s:?}")
+		})
+	}
+}
+
+impl Ord for Resolution {
+	fn cmp(&self, other: &Self) -> cmp::Ordering {
+		(self.width * self.height).cmp(&(other.width * other.height))
+	}
+}
+
+impl Eq for Resolution {}
+
+impl PartialOrd for Resolution {
+	fn partial_cmp(&self, other: &Self) -> Option<cmp::Ordering> {
+		Some(self.cmp(other))
+	}
+}
+
+impl PartialEq for Resolution {
+	fn eq(&self, other: &Self) -> bool {
+		self.cmp(other) == cmp::Ordering::Equal
+	}
 }
 
 #[derive(Deserialize, Serialize)]
@@ -139,6 +206,7 @@ pub struct ProjectSourceMetadata {
 	pub source_sample_rate: u32
 }
 
+#[serde_as]
 #[derive(Default, Deserialize, Serialize)]
 pub struct ProjectProgress {
 	#[serde(default)]
@@ -159,6 +227,7 @@ pub struct ProjectProgress {
 	#[serde(default)]
 	pub rendered: bool,
 
+	#[serde_as(as = "BTreeSet<DisplayFromStr>")]
 	#[serde(default)]
 	pub transcoded: BTreeSet<Resolution>
 }

src/question.rs

@@ -131,8 +131,8 @@ impl Question {
 
 	pub(crate) fn finish(self) -> Graphic {
 		let mut svg = Graphic::new();
-		svg.set_width(self.res.width());
+		svg.set_width(self.res.width);
-		svg.set_height(self.res.height());
+		svg.set_height(self.res.height);
 		svg.set_view_box("0 0 1920 1080");
 		svg.push(self.g);
 		svg

src/render/ffmpeg.rs

@@ -347,9 +347,9 @@ impl Ffmpeg {
 			},
 			FfmpegFilter::Rescale(res) => {
 				cmd.arg("-vf").arg(if vaapi {
-					format!("scale_vaapi=w={}:h={}", res.width(), res.height())
+					format!("scale_vaapi=w={}:h={}", res.width, res.height)
 				} else {
-					format!("scale=w={}:h={}", res.width(), res.height())
+					format!("scale=w={}:h={}", res.width, res.height)
 				});
 			}
 		}

src/render/mod.rs

@@ -41,8 +41,8 @@ const QUESTION_FADE_LEN: Time = Time {
 };
 const FF_MULTIPLIER: usize = 8;
 // logo sizes at full hd, will be scaled to source resolution
-const FF_LOGO_SIZE: usize = 128;
+const FF_LOGO_SIZE: u32 = 128;
-const LOGO_SIZE: usize = 96;
+const LOGO_SIZE: u32 = 96;
 
 fn cmd() -> Command {
 	#[cfg(feature = "mem_limit")]
@@ -157,7 +157,7 @@ fn svg2mkv(
 	ffmpeg.run()
 }
 
-fn svg2png(svg: &Path, png: &Path, width: usize, height: usize) -> anyhow::Result<()> {
+fn svg2png(svg: &Path, png: &Path, width: u32, height: u32) -> anyhow::Result<()> {
 	let mut cmd = cmd();
 	cmd.arg("inkscape")
 		.arg("-w")
@@ -263,14 +263,7 @@ impl<'a> Renderer<'a> {
 
 		let width = ffprobe_video("stream=width", &recording_mkv)?.parse()?;
 		let height = ffprobe_video("stream=height", &recording_mkv)?.parse()?;
-		let source_res = match (width, height) {
+		let source_res = Resolution { width, height };
-			(3840, 2160) => Resolution::UHD,
-			(2560, 1440) => Resolution::WQHD,
-			(1920, 1080) => Resolution::FullHD,
-			(1280, 720) => Resolution::HD,
-			(640, 360) => Resolution::nHD,
-			(width, height) => bail!("Unknown resolution: {width}x{height}")
-		};
 		project.source.metadata = Some(ProjectSourceMetadata {
 			source_duration: ffprobe_video("format=duration", &recording_mkv)?.parse()?,
 			source_fps: ffprobe_video("stream=r_frame_rate", &recording_mkv)?.parse()?,
@@ -322,7 +315,7 @@ 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;
+		let logo_size = LOGO_SIZE * metadata.source_res.width / 1920;
 		svg2png(&logo_svg, &logo_png, logo_size, logo_size)?;
 
 		// copy fastforward then render to png
@@ -335,7 +328,7 @@ impl<'a> Renderer<'a> {
 			))
 		)?;
 		let fastforward_png = self.target.join("fastforward.png");
-		let ff_logo_size = FF_LOGO_SIZE * metadata.source_res.width() / 1920;
+		let ff_logo_size = FF_LOGO_SIZE * metadata.source_res.width / 1920;
 		svg2png(
 			&fastforward_svg,
 			&fastforward_png,
@@ -355,8 +348,8 @@ impl<'a> Renderer<'a> {
 			svg2png(
 				&q_svg,
 				&q_png,
-				metadata.source_res.width(),
+				metadata.source_res.width,
-				metadata.source_res.height()
+				metadata.source_res.height
 			)?;
 		}
 
@@ -365,13 +358,13 @@ impl<'a> Renderer<'a> {
 
 	/// Get the video file for a specific resolution, completely finished.
 	fn video_file_res(&self, res: Resolution) -> PathBuf {
-		let extension = match res.format() {
+		let extension = match res.default_codec() {
 			FfmpegOutputFormat::Av1Flac => "mkv",
 			FfmpegOutputFormat::Av1Opus => "webm",
 			FfmpegOutputFormat::AvcAac => "mp4"
 		};
 		self.target
-			.join(format!("{}-{}p.{extension}", self.slug, res.height()))
+			.join(format!("{}-{}p.{extension}", self.slug, res.height))
 	}
 
 	/// Get the video file directly outputed to further transcode.
@@ -627,8 +620,8 @@ impl<'a> Renderer<'a> {
 			output: logoalpha.into()
 		});
 		let overlay = "overlay";
-		let overlay_off_x = 130 * source_res.width() / 3840;
+		let overlay_off_x = 130 * source_res.width / 3840;
-		let overlay_off_y = 65 * source_res.height() / 2160;
+		let overlay_off_y = 65 * source_res.height / 2160;
 		ffmpeg.add_filter(Filter::Overlay {
 			video_input: concat.into(),
 			overlay_input: logoalpha.into(),
@@ -657,7 +650,7 @@ impl<'a> Renderer<'a> {
 		println!(
 			" {} {}",
 			style("==>").bold().cyan(),
-			style(format!("Rescaling to {}p", res.height())).bold()
+			style(format!("Rescaling to {}p", res.height)).bold()
 		);
 
 		let mut ffmpeg = Ffmpeg::new(FfmpegOutput {
@@ -675,7 +668,7 @@ impl<'a> Renderer<'a> {
 			comment: Some(lecture.lang.video_created_by_us.into()),
 			language: Some(lecture.lang.lang.into()),
 
-			..FfmpegOutput::new(res.format(), output.clone()).enable_faststart()
+			..FfmpegOutput::new(res.default_codec(), output.clone()).enable_faststart()
 		});
 		ffmpeg.add_input(FfmpegInput::new(input));
 		ffmpeg.rescale_video(res);