validate file compression settings and filtering

- fix length from filler clip in playlist generator
- serialize values only when string is not empty
- compare also audio and custom filter on playlist existing check

Cargo.lock

@@ -960,7 +960,7 @@ dependencies = [
 
 [[package]]
 name = "ffplayout-api"
-version = "0.6.0"
+version = "0.6.1"
 dependencies = [
  "actix-files",
  "actix-multipart",

ffplayout-api/Cargo.toml

@@ -4,7 +4,7 @@ description = "Rest API for ffplayout"
 license = "GPL-3.0"
 authors = ["Jonathan Baecker jonbae77@gmail.com"]
 readme = "README.md"
-version = "0.6.0"
+version = "0.6.1"
 edition = "2021"
 
 [dependencies]

lib/src/utils/generator.rs

@@ -141,7 +141,7 @@ pub fn generate_playlist(
 
                 length += duration;
             } else if filler_length > 0.0 && filler_length > total_length - length {
-                filler.out = filler_length - (total_length - length);
+                filler.out = total_length - length;
                 playlist.program.push(filler);
 
                 break;

lib/src/utils/json_validate.rs

@@ -10,44 +10,57 @@ use std::{
 use simplelog::*;
 
 use crate::utils::{
-    format_log_line, sec_to_time, valid_source, vec_strings, Media, JsonPlaylist, PlayoutConfig,
+    format_log_line, loop_image, sec_to_time, seek_and_length, valid_source, vec_strings,
+    JsonPlaylist, Media, PlayoutConfig, IMAGE_FORMAT,
 };
 
 /// check if ffmpeg can read the file and apply filter to it.
-fn check_media(item: Media, begin: f64, config: &PlayoutConfig) -> Result<(), Error> {
-    let mut clip = item;
-    clip.add_probe();
-    clip.add_filter(config, &Arc::new(Mutex::new(vec![])));
+fn check_media(
+    mut node: Media,
+    pos: usize,
+    begin: f64,
+    config: &PlayoutConfig,
+) -> Result<(), Error> {
+    let mut enc_cmd = vec_strings!["-hide_banner", "-nostats", "-v", "level+error"];
+    let mut error_list = vec![];
 
-    let enc_cmd = vec_strings![
-        "-hide_banner",
-        "-nostats",
-        "-v",
-        "level+error",
-        "-ignore_chapters",
-        "1",
-        "-i",
-        clip.source,
-        "-t",
-        "0.25",
-        "-f",
-        "null",
-        "-"
-    ];
+    node.add_probe();
 
-    if clip.probe.and_then(|p| p.format).is_none() {
+    if node.probe.clone().and_then(|p| p.format).is_none() {
         return Err(Error::new(
             ErrorKind::Other,
             format!(
-                "No Metadata at <yellow>{}</>, from file <b><magenta>\"{}\"</></b>",
+                "No Metadata at position <yellow>{pos}</> {}, from file <b><magenta>\"{}\"</></b>",
                 sec_to_time(begin),
-                clip.source
+                node.source
             ),
         ));
     }
 
+    // take care, that no seek and length command is added.
+    node.seek = 0.0;
+    node.out = node.duration;
+
+    if node
+        .source
+        .rsplit_once('.')
+        .map(|(_, e)| e.to_lowercase())
+        .filter(|c| IMAGE_FORMAT.contains(&c.as_str()))
+        .is_some()
+    {
+        node.cmd = Some(loop_image(&node));
+    } else {
+        node.cmd = Some(seek_and_length(&node));
+    }
+
+    node.add_filter(config, &Arc::new(Mutex::new(vec![])));
+
+    enc_cmd.append(&mut node.cmd.unwrap_or_default());
+    enc_cmd.append(&mut node.filter.unwrap_or_default());
+    enc_cmd.append(&mut vec_strings!["-t", "0.15", "-f", "null", "-"]);
+
     let mut enc_proc = match Command::new("ffmpeg")
-        .args(enc_cmd)
+        .args(enc_cmd.clone())
         .stderr(Stdio::piped())
         .spawn()
     {
@@ -61,17 +74,30 @@ fn check_media(item: Media, begin: f64, config: &PlayoutConfig) -> Result<(), Er
         let line = line?;
 
         if line.contains("[error]") {
-            error!(
-                "<bright black>[Validator]</> {}",
-                format_log_line(line, "error")
-            );
+            let log_line = format_log_line(line, "error");
+
+            if !error_list.contains(&log_line) {
+                error_list.push(log_line);
+            }
         } else if line.contains("[fatal]") {
+            let log_line = format_log_line(line, "fatal");
+
+            if !error_list.contains(&log_line) {
+                error_list.push(log_line);
+            }
+        }
+    }
+
+    if !error_list.is_empty() {
         error!(
-                "<bright black>[Validator]</> {}",
-                format_log_line(line, "fatal")
+            "<bright black>[Validator]</> Compressing error on position <yellow>{pos}</> {}: <b><magenta>{}</></b>:\n{}",
+            sec_to_time(begin),
+            node.source,
+            error_list.join("\n")
         )
     }
-    }
+
+    error_list.clear();
 
     Ok(())
 }
@@ -94,20 +120,22 @@ pub fn validate_playlist(
 
     length += begin;
 
-    debug!("validate playlist from: <yellow>{date}</>");
+    debug!("Validate playlist from: <yellow>{date}</>");
 
-    for item in playlist.program.iter() {
+    for (index, item) in playlist.program.iter().enumerate() {
         if is_terminated.load(Ordering::SeqCst) {
             return;
         }
 
+        let pos = index + 1;
+
         if valid_source(&item.source) {
-            if let Err(e) = check_media(item.clone(), begin, &config) {
+            if let Err(e) = check_media(item.clone(), pos, begin, &config) {
                 error!("{e}");
             };
         } else {
             error!(
-                "Source on position <yellow>{}</> not exists: <b><magenta>\"{}\"</></b>",
+                "Source on position <yellow>{pos}</> {} not exists: <b><magenta>\"{}\"</></b>",
                 sec_to_time(begin),
                 item.source
             );
@@ -122,4 +150,6 @@ pub fn validate_playlist(
             sec_to_time(length - begin),
         );
     }
+
+    debug!("Validation done...");
 }

lib/src/utils/mod.rs

@@ -55,12 +55,20 @@ pub struct Media {
     pub out: f64,
     pub duration: f64,
 
-    #[serde(default, deserialize_with = "null_string")]
+    #[serde(
+        default,
+        deserialize_with = "null_string",
+        skip_serializing_if = "is_empty_string"
+    )]
     pub category: String,
     #[serde(deserialize_with = "null_string")]
     pub source: String,
 
-    #[serde(default, deserialize_with = "null_string")]
+    #[serde(
+        default,
+        deserialize_with = "null_string",
+        skip_serializing_if = "is_empty_string"
+    )]
     pub audio: String,
 
     #[serde(skip_serializing, skip_deserializing)]
@@ -69,7 +77,7 @@ pub struct Media {
     #[serde(skip_serializing, skip_deserializing)]
     pub filter: Option<Vec<String>>,
 
-    #[serde(default)]
+    #[serde(default, skip_serializing_if = "is_empty_string")]
     pub custom_filter: String,
 
     #[serde(skip_serializing, skip_deserializing)]
@@ -158,6 +166,8 @@ impl PartialEq for Media {
             && self.duration == other.duration
             && self.source == other.source
             && self.category == other.category
+            && self.audio == other.audio
+            && self.custom_filter == other.custom_filter
     }
 }
 
@@ -170,6 +180,11 @@ where
     Deserialize::deserialize(d).map(|x: Option<_>| x.unwrap_or_default())
 }
 
+#[allow(clippy::trivially_copy_pass_by_ref)]
+fn is_empty_string(st: &String) -> bool {
+    *st == String::new()
+}
+
 /// We use the ffprobe crate, but we map the metadata to our needs.
 #[derive(Debug, Serialize, Deserialize, Clone, PartialEq)]
 pub struct MediaProbe {
@@ -463,12 +478,15 @@ pub fn seek_and_length(node: &Media) -> Vec<String> {
         source_cmd.append(&mut vec_strings!["-ss", node.seek])
     }
 
-    source_cmd.append(&mut vec_strings![
-        "-ignore_chapters",
-        "1",
-        "-i",
-        node.source.clone()
-    ]);
+    if file_extension(Path::new(&node.source))
+        .unwrap_or_default()
+        .to_lowercase()
+        == "mp4"
+    {
+        source_cmd.append(&mut vec_strings!["-ignore_chapters", "1"]);
+    }
+
+    source_cmd.append(&mut vec_strings!["-i", node.source.clone()]);
 
     if Path::new(&node.audio).is_file() {
         let audio_probe = MediaProbe::new(&node.audio);