Read sampleRate from audio files

scanner/metadata/ffmpeg/ffmpeg.go

@@ -81,7 +81,8 @@ var (
 
 	//    Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 192 kb/s
 	//    Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
-	audioStreamRx = regexp.MustCompile(`^\s{2,4}Stream #\d+:\d+.*: Audio: (.*), (.* Hz), ([\w.]+),*(.*.,)*`)
+	//    Stream #0:0: Audio: dsd_lsbf_planar, 352800 Hz, stereo, fltp, 5644 kb/s
+	audioStreamRx = regexp.MustCompile(`^\s{2,4}Stream #\d+:\d+.*: Audio: (.*), (.*) Hz, ([\w.]+),*(.*.,)*`)
 
 	//    Stream #0:1: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 600x600 [SAR 1:1 DAR 1:1], 90k tbr, 90k tbn, 90k tbc`
 	coverRx = regexp.MustCompile(`^\s{2,4}Stream #\d+:.+: (Video):.*`)
@@ -166,6 +167,7 @@ func (e *Extractor) parseInfo(info string) map[string][]string {
 
 		match = audioStreamRx.FindStringSubmatch(line)
 		if len(match) > 0 {
+			tags["samplerate"] = []string{match[2]}
 			tags["channels"] = []string{e.parseChannels(match[3])}
 		}
 	}

scanner/metadata/ffmpeg/ffmpeg_test.go

@@ -174,6 +174,24 @@ Input #0, flac, from '/Users/deluan/Music/iTunes/iTunes Media/Music/Compilations
 			Expect(md).To(HaveKeyWithValue("channels", []string{"2"}))
 		})
 
+		It("parse sampleRate from the stream", func() {
+			const output = `
+Input #0, dsf, from '/Users/deluan/Downloads/06-04 Perpetual Change.dsf':
+  Duration: 00:14:19.46, start: 0.000000, bitrate: 5644 kb/s
+  Stream #0:0: Audio: dsd_lsbf_planar, 352800 Hz, stereo, fltp, 5644 kb/s`
+			md, _ := e.extractMetadata("tests/fixtures/test.mp3", output)
+			Expect(md).To(HaveKeyWithValue("samplerate", []string{"352800"}))
+		})
+
+		It("parse sampleRate from the stream", func() {
+			const output = `
+Input #0, wav, from '/Users/deluan/Music/Music/Media/_/multichannel/Nums_7dot1_24_48000.wav':
+  Duration: 00:00:09.05, bitrate: 9216 kb/s
+  Stream #0:0: Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 7.1, s32 (24 bit), 9216 kb/s`
+			md, _ := e.extractMetadata("tests/fixtures/test.mp3", output)
+			Expect(md).To(HaveKeyWithValue("samplerate", []string{"48000"}))
+		})
+
 		It("parses stream level tags", func() {
 			const output = `
 Input #0, ogg, from './01-02 Drive (Teku).opus':