Lastrosade sc only (#574)

* Add command line arg for sc-only

* added arg to settings.rs

* Add check and kill after split_routine()

Deletes the temporary directory, it would be better if it was never created in the first place.

* Initialize sc_only in EncodeArgs

* cargo fmt

* Integration test

* Make -s a requirement

* cargo fmt

* Add -s as requirement to sc-only via clap

* revert f7688ca

* Fix me not reading errors

* revert db4fb3b

* Cargo fmt

* Added --scenes as a requirement for --sc-only with clap

* Update wording

* Trying to fix the weird integration bug

* Revert 393b380

* Condition on test failure

* Github actions again

* Filename in actions

.github/workflows/tests.yml

@@ -222,6 +222,12 @@ jobs:
           target/ci/av1an -i tt_sif.y4m -e aom --pix-format yuv420p -y -o "tt_sif.mkv" -v " --cpu-used=10 --rt --threads=4" -c mkvmerge
           du -h tt_sif.mkv
 
+      - name: Testing sc-only
+        run: |
+          target/ci/av1an -i tt_sif.y4m --sc-only --sc-method fast -s "tt_sif_scenes.json"
+          du -h tt_sif_scenes.json
+        continue-on-error: true
+
   docker:
     runs-on: ubuntu-latest
     steps:

av1an-cli/src/lib.rs

@@ -188,6 +188,12 @@ pub struct CliOpts {
   #[clap(long, possible_values = &["standard", "fast"], default_value_t = ScenecutMethod::Standard, help_heading = "SCENE DETECTION")]
   pub sc_method: ScenecutMethod,
 
+  /// Run the scene detection only before exiting
+  ///
+  /// Requires a scene file with --scenes.
+  #[clap(long, requires("scenes"), help_heading = "SCENE DETECTION")]
+  pub sc_only: bool,
+
   /// Perform scene detection with this pixel format
   #[clap(long, help_heading = "SCENE DETECTION")]
   pub sc_pix_format: Option<Pixel>,
@@ -553,6 +559,7 @@ pub fn parse_cli(args: CliOpts) -> anyhow::Result<EncodeArgs> {
     scenes: args.scenes,
     split_method: args.split_method,
     sc_method: args.sc_method,
+    sc_only: args.sc_only,
     sc_downscale_height: args.sc_downscale_height,
     target_quality: args.target_quality,
     verbosity: if args.quiet {

av1an-core/src/settings.rs

@@ -81,6 +81,7 @@ pub struct EncodeArgs {
   pub split_method: SplitMethod,
   pub sc_pix_format: Option<Pixel>,
   pub sc_method: ScenecutMethod,
+  pub sc_only: bool,
   pub sc_downscale_height: Option<usize>,
   pub extra_splits_len: Option<usize>,
   pub min_scene_len: usize,
@@ -1063,6 +1064,16 @@ properly into a mkv file. Specify mkvmerge as the concatenation method by settin
 
     let splits = self.split_routine()?;
 
+    if self.sc_only {
+      debug!("scene detection only");
+
+      if let Err(e) = fs::remove_dir_all(&self.temp) {
+        warn!("Failed to delete temp directory: {}", e);
+      }
+
+      exit(0);
+    }
+
     let (chunk_queue, total_chunks) = self.load_or_gen_chunk_queue(splits)?;
 
     if self.resume {