fuzz: add decode_aac, fix compilation errors and simplify code

Author: sscobici

symphonia/fuzz/Cargo.toml

@@ -34,3 +34,9 @@ name = "decode_mp3"
 path = "fuzz_targets/decode_mp3.rs"
 test = false
 doc = false
+
+[[bin]]
+name = "decode_aac"
+path = "fuzz_targets/decode_aac.rs"
+test = false
+doc = false

symphonia/fuzz/fuzz_targets/decode_aac.rs

@@ -0,0 +1,16 @@
+#![no_main]
+use libfuzzer_sys::fuzz_target;
+use symphonia::core::codecs::audio::{AudioCodecParameters, AudioDecoder};
+use symphonia::core::codecs::audio::well_known::CODEC_ID_AAC;
+use symphonia::core::formats::Packet;
+use symphonia::default::codecs::AacDecoder;
+
+fuzz_target!(|data: Vec<u8>| {
+    let mut codec_params = AudioCodecParameters::new();
+    codec_params.for_codec(CODEC_ID_AAC);
+
+    if let Ok(mut decoder) = AacDecoder::try_new(&codec_params, &Default::default()) {
+        let packet = Packet::new_from_boxed_slice(0, 0, 0, data.into_boxed_slice());
+        decoder.decode(&packet).ok();
+    }
+});

symphonia/fuzz/fuzz_targets/decode_any.rs

@@ -1,39 +1,32 @@
 #![no_main]
 use libfuzzer_sys::fuzz_target;
-use symphonia::core::codecs::DecoderOptions;
+use symphonia::core::codecs::audio::AudioDecoderOptions;
 use symphonia::core::formats::FormatOptions;
+use symphonia::core::formats::probe::Hint;
+use symphonia::core::formats::TrackType;
 use symphonia::core::meta::MetadataOptions;
-use symphonia::core::probe::Hint;
 
 fuzz_target!(|data: Vec<u8>| {
     let data = std::io::Cursor::new(data);
-
     let source = symphonia::core::io::MediaSourceStream::new(Box::new(data), Default::default());
-
-    match symphonia::default::get_probe().format(
+    
+    if let Ok(mut format) = symphonia::default::get_probe().probe(
         &Hint::new(),
         source,
-        &FormatOptions::default(),
-        &MetadataOptions::default(),
+        FormatOptions::default(),
+        MetadataOptions::default(),
     ) {
-        Ok(mut probed) => {
-            let track = probed.format.default_track().unwrap();
-
-            let mut decoder = match symphonia::default::get_codecs()
-                .make(&track.codec_params, &DecoderOptions::default())
-            {
-                Ok(d) => d,
-                Err(_) => return,
-            };
-
-            loop {
-                let packet = match probed.format.next_packet() {
-                    Ok(p) => p,
-                    Err(_) => return,
-                };
-                let _ = decoder.decode(&packet);
+        if let Some(track) = format.default_track(TrackType::Audio) {
+            if let Some(codec_params) = track.codec_params.as_ref() {
+                if let Ok(mut decoder) = symphonia::default::get_codecs().make_audio_decoder(
+                    &codec_params.audio().unwrap(),
+                    &AudioDecoderOptions::default(),
+                ) {
+                    while let Ok(Some(packet)) = format.next_packet() {
+                        let _ = decoder.decode(&packet);
+                    }
+                }
             }
         }
-        Err(_) => {}
     }
 });

symphonia/fuzz/fuzz_targets/decode_mp3.rs

@@ -1,15 +1,16 @@
 #![no_main]
 use libfuzzer_sys::fuzz_target;
-use symphonia::core::codecs::{CODEC_ID_MP3, CodecParameters, Decoder};
+use symphonia::core::codecs::audio::{AudioCodecParameters, AudioDecoder};
+use symphonia::core::codecs::audio::well_known::CODEC_ID_MP3;
 use symphonia::core::formats::Packet;
 use symphonia::default::codecs::MpaDecoder;
 
 fuzz_target!(|data: Vec<u8>| {
-    let mut codec_params = CodecParameters::new();
+    let mut codec_params = AudioCodecParameters::new();
     codec_params.for_codec(CODEC_ID_MP3);
 
-    let mut decoder = MpaDecoder::try_new(&codec_params, &Default::default()).unwrap();
-
-    let packet = Packet::new_from_boxed_slice(0, 0, 0, data.into_boxed_slice());
-    let _ = decoder.decode(&packet);
+    if let Ok(mut decoder) = MpaDecoder::try_new(&codec_params, &Default::default()) {
+        let packet = Packet::new_from_boxed_slice(0, 0, 0, data.into_boxed_slice());
+        decoder.decode(&packet).ok();
+    }
 });