Feature: Add ffmpeg binary cataloger (#3994)

* Add ffmpeg binary cataloger

Signed-off-by: Alan Pope <alan.pope@anchore.com>

* add linux-amd64 snippet and test

Signed-off-by: Alan Pope <alan.pope@anchore.com>

* Widen scope of regex to two digit version numbers

Signed-off-by: Alan Pope <alan.pope@anchore.com>

* Add full test fixtures for ffmpeg

Signed-off-by: Alan Pope <alan.pope@anchore.com>

---------

Signed-off-by: Alan Pope <alan.pope@anchore.com>

syft/pkg/cataloger/binary/classifier_cataloger_test.go

@@ -1370,6 +1370,28 @@ func Test_Cataloger_PositiveCases(t *testing.T) {
 				Metadata:  metadata("chrome-binary"),
 			},
 		},
+		{
+			logicalFixture: "ffmpeg/7.1.1/darwin-arm64",
+			expected: pkg.Package{
+				Name:      "ffmpeg",
+				Version:   "7.1.1",
+				Type:      "binary",
+				PURL:      "pkg:generic/ffmpeg@7.1.1",
+				Locations: locations("ffmpeg"),
+				Metadata:  metadata("ffmpeg-binary"),
+			},
+		},
+		{
+			logicalFixture: "ffmpeg/6.1.1/linux-amd64",
+			expected: pkg.Package{
+				Name:      "ffmpeg",
+				Version:   "6.1.1",
+				Type:      "binary",
+				PURL:      "pkg:generic/ffmpeg@6.1.1",
+				Locations: locations("ffmpeg"),
+				Metadata:  metadata("ffmpeg-binary"),
+			},
+		},
 	}
 
 	for _, test := range tests {

syft/pkg/cataloger/binary/classifiers.go

@@ -627,6 +627,18 @@ func DefaultClassifiers() []binutils.Classifier {
 			PURL:    mustPURL("pkg:generic/chrome@version"),
 			CPEs:    singleCPE("cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*"),
 		},
+		{
+			Class:    "ffmpeg-binary",
+			FileGlob: "**/ffmpeg",
+			EvidenceMatcher: m.FileContentsVersionMatcher(
+				// Pattern found in the binary: "%s version 7.1.1" or "%s version 6.0"
+				// When executed outputs: "ffmpeg version 7.1.1" or "ffmpeg version 6.0"
+				`(?m)%s version (?P<version>[0-9]+\.[0-9]+(\.[0-9]+)?)`,
+			),
+			Package: "ffmpeg",
+			PURL:    mustPURL("pkg:generic/ffmpeg@version"),
+			CPEs:    singleCPE("cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*", cpe.NVDDictionaryLookupSource),
+		},
 	}
 
 	return append(classifiers, defaultJavaClassifiers()...)

syft/pkg/cataloger/binary/test-fixtures/config.yaml

@@ -810,3 +810,23 @@ from-images:
         platform: linux/amd64
     paths:
       - /usr/local/bin/jq
+
+  - name: ffmpeg
+    version: 8.0
+    images:
+      - ref: linuxserver/ffmpeg:version-8.0-cli@sha256:9d7e80710e7f11a276a4185f07e5e81db26fc7027ea70d1591f93ddf58e36ab4
+        platform: linux/amd64
+      - ref: linuxserver/ffmpeg:arm64v8-version-8.0-cli@sha256:0b6cf2e15a78094396f23a7cb3afaf7dffcad195573a2b97f190eae1ee1a0420
+        platform: linux/arm64
+    paths:
+      - /usr/local/bin/ffmpeg
+
+  - name: ffmpeg
+    version: 7.1.1
+    images:
+      - ref: linuxserver/ffmpeg:7.1.1@sha256:aea59a11c54291ac456bb2d67000445e5a8994f70bc3d96cdc29f022fbbf89fb
+        platform: linux/amd64
+      - ref: linuxserver/ffmpeg:arm64v8-7.1.1@sha256:b2aa507f205ea2dc32369c55d0f93b5649f1b39e42d9e6cd27bd53def7a63655
+        platform: linux/arm64
+    paths:
+      - /usr/local/bin/ffmpeg