Supplementary AAC

pkg/aac/aac.go

@@ -31,9 +31,19 @@ import (
 const (
 	AdtsHeaderLength = 7
 
+	AscSamplingFrequencyIndex96000 = 0
+	AscSamplingFrequencyIndex88200 = 1
+	AscSamplingFrequencyIndex64000 = 2
 	AscSamplingFrequencyIndex48000 = 3
 	AscSamplingFrequencyIndex44100 = 4
+	AscSamplingFrequencyIndex32000 = 5
+	AscSamplingFrequencyIndex24000 = 6
 	AscSamplingFrequencyIndex22050 = 7
+	AscSamplingFrequencyIndex16000 = 8
+	AscSamplingFrequencyIndex12000 = 9
+	AscSamplingFrequencyIndex11025 = 10
+	AscSamplingFrequencyIndex8000  = 11
+	AscSamplingFrequencyIndex7350  = 12
 )
 
 const (
@@ -49,7 +59,7 @@ const (
 // <1.6.3.4 channelConfiguration>
 // --------------------------------------------------------
 // audio object type      [5b] 1=AAC MAIN  2=AAC LC
-// samplingFrequencyIndex [4b] 3=48000, 4=44100, 5=32000, 6=24000, 7=22050, 11=11025
+// samplingFrequencyIndex [4b] 0=96000, 1=88200, 2=64000, 3=48000, 4=44100, 5=32000, 6=24000, 7=22050, 8=16000, 9=12000, 10=11025, 11=11025, 12=7350
 // channelConfiguration   [4b] 1=center front speaker  2=left, right front speakers
 //
 type AscContext struct {
@@ -170,12 +180,30 @@ func (ascCtx *AscContext) PackToAdtsHeader(out []byte, frameLength int) error {
 
 func (ascCtx *AscContext) GetSamplingFrequency() (int, error) {
 	switch ascCtx.SamplingFrequencyIndex {
+	case AscSamplingFrequencyIndex96000:
+		return 96000, nil
+	case AscSamplingFrequencyIndex88200:
+		return 88200, nil
+	case AscSamplingFrequencyIndex64000:
+		return 64000, nil
 	case AscSamplingFrequencyIndex48000:
 		return 48000, nil
 	case AscSamplingFrequencyIndex44100:
 		return 44100, nil
+	case AscSamplingFrequencyIndex32000:
+		return 32000, nil
 	case AscSamplingFrequencyIndex22050:
 		return 22050, nil
+	case AscSamplingFrequencyIndex16000:
+		return 16000, nil
+	case AscSamplingFrequencyIndex12000:
+		return 12000, nil
+	case AscSamplingFrequencyIndex11025:
+		return 11025, nil
+	case AscSamplingFrequencyIndex8000:
+		return 8000, nil
+	case AscSamplingFrequencyIndex7350:
+		return 7350, nil
 	}
 	return -1, fmt.Errorf("%w. asCtx=%+v", base.ErrSamplingFrequencyIndex, ascCtx)
 }