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move MPEG-4 audio LATM to dedicated format (bluenviron/mediamtx#4403) (#834)

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This commit is contained in:
Alessandro Ros
2025-07-20 17:28:52 +02:00
committed by GitHub
parent 1db87f6bf6
commit 800dd9c850
31 changed files with 1620 additions and 1800 deletions
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140
pkg/format/mpeg4_audio_test.go
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@@ -10,117 +10,51 @@ import (
)
func TestMPEG4AudioAttributes(t *testing.T) {
t.Run("generic", func(t *testing.T) {
format := &MPEG4Audio{
PayloadTyp: 96,
Config: &mpeg4audio.Config{
Type: mpeg4audio.ObjectTypeAACLC,
SampleRate: 48000,
ChannelCount: 2,
},
SizeLength: 13,
IndexLength: 3,
IndexDeltaLength: 3,
}
require.Equal(t, "MPEG-4 Audio", format.Codec())
require.Equal(t, 48000, format.ClockRate())
require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
require.Equal(t, &mpeg4audio.Config{
format := &MPEG4Audio{
PayloadTyp: 96,
Config: &mpeg4audio.AudioSpecificConfig{
Type: mpeg4audio.ObjectTypeAACLC,
SampleRate: 48000,
ChannelCount: 2,
}, format.GetConfig())
})
t.Run("latm", func(t *testing.T) {
format := &MPEG4Audio{
LATM: true,
PayloadTyp: 96,
ProfileLevelID: 1,
StreamMuxConfig: &mpeg4audio.StreamMuxConfig{
Programs: []*mpeg4audio.StreamMuxConfigProgram{{
Layers: []*mpeg4audio.StreamMuxConfigLayer{{
AudioSpecificConfig: &mpeg4audio.Config{
Type: 2,
SampleRate: 44100,
ChannelCount: 2,
},
LatmBufferFullness: 255,
}},
}},
},
}
require.Equal(t, "MPEG-4 Audio", format.Codec())
require.Equal(t, 44100, format.ClockRate())
require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
require.Equal(t, &mpeg4audio.Config{
Type: 2,
SampleRate: 44100,
ChannelCount: 2,
}, format.GetConfig())
})
},
SizeLength: 13,
IndexLength: 3,
IndexDeltaLength: 3,
}
require.Equal(t, "MPEG-4 Audio", format.Codec())
require.Equal(t, 48000, format.ClockRate())
require.Equal(t, true, format.PTSEqualsDTS(&rtp.Packet{}))
require.Equal(t, &mpeg4audio.AudioSpecificConfig{
Type: mpeg4audio.ObjectTypeAACLC,
SampleRate: 48000,
ChannelCount: 2,
}, format.GetConfig())
}
func TestMPEG4AudioDecEncoder(t *testing.T) {
t.Run("generic", func(t *testing.T) {
format := &MPEG4Audio{
PayloadTyp: 96,
Config: &mpeg4audio.Config{
Type: mpeg4audio.ObjectTypeAACLC,
SampleRate: 48000,
ChannelCount: 2,
},
SizeLength: 13,
IndexLength: 3,
IndexDeltaLength: 3,
}
format := &MPEG4Audio{
PayloadTyp: 96,
Config: &mpeg4audio.AudioSpecificConfig{
Type: mpeg4audio.ObjectTypeAACLC,
SampleRate: 48000,
ChannelCount: 2,
},
SizeLength: 13,
IndexLength: 3,
IndexDeltaLength: 3,
}
enc, err := format.CreateEncoder()
require.NoError(t, err)
enc, err := format.CreateEncoder()
require.NoError(t, err)
pkts, err := enc.Encode([][]byte{{0x01, 0x02, 0x03, 0x04}})
require.NoError(t, err)
require.Equal(t, format.PayloadType(), pkts[0].PayloadType)
pkts, err := enc.Encode([][]byte{{0x01, 0x02, 0x03, 0x04}})
require.NoError(t, err)
require.Equal(t, format.PayloadType(), pkts[0].PayloadType)
dec, err := format.CreateDecoder()
require.NoError(t, err)
dec, err := format.CreateDecoder()
require.NoError(t, err)
byts, err := dec.Decode(pkts[0])
require.NoError(t, err)
require.Equal(t, [][]byte{{0x01, 0x02, 0x03, 0x04}}, byts)
})
t.Run("latm", func(t *testing.T) {
format := &MPEG4Audio{
LATM: true,
PayloadTyp: 96,
ProfileLevelID: 1,
StreamMuxConfig: &mpeg4audio.StreamMuxConfig{
Programs: []*mpeg4audio.StreamMuxConfigProgram{{
Layers: []*mpeg4audio.StreamMuxConfigLayer{{
AudioSpecificConfig: &mpeg4audio.Config{
Type: 2,
SampleRate: 48000,
ChannelCount: 2,
},
LatmBufferFullness: 255,
}},
}},
},
}
enc, err := format.CreateEncoder()
require.NoError(t, err)
pkts, err := enc.Encode([][]byte{{0x01, 0x02, 0x03, 0x04}})
require.NoError(t, err)
require.Equal(t, format.PayloadType(), pkts[0].PayloadType)
dec, err := format.CreateDecoder()
require.NoError(t, err)
byts, err := dec.Decode(pkts[0])
require.NoError(t, err)
require.Equal(t, [][]byte{{0x01, 0x02, 0x03, 0x04}}, byts)
})
byts, err := dec.Decode(pkts[0])
require.NoError(t, err)
require.Equal(t, [][]byte{{0x01, 0x02, 0x03, 0x04}}, byts)
}