mirror of
https://github.com/aler9/gortsplib
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ae9dac0ad3
* remove Medias.Clone(), Media.Clone(), Format.Clone() * server: use random UUIDs as media IDs * client: use random UUIDs as media IDs
119 lines
2.1 KiB
Go
119 lines
2.1 KiB
Go
package format
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import (
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"fmt"
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"strconv"
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"strings"
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"github.com/pion/rtp"
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"github.com/aler9/gortsplib/v2/pkg/formatdecenc/rtplpcm"
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)
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// LPCM is an uncompressed, Linear PCM format.
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type LPCM struct {
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PayloadTyp uint8
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BitDepth int
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SampleRate int
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ChannelCount int
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}
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// String implements Format.
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func (t *LPCM) String() string {
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return "LPCM"
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}
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// ClockRate implements Format.
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func (t *LPCM) ClockRate() int {
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return t.SampleRate
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}
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// PayloadType implements Format.
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func (t *LPCM) PayloadType() uint8 {
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return t.PayloadTyp
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}
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func (t *LPCM) unmarshal(payloadType uint8, clock string, codec string, rtpmap string, fmtp string) error {
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t.PayloadTyp = payloadType
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switch codec {
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case "l8":
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t.BitDepth = 8
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case "l16":
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t.BitDepth = 16
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case "l24":
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t.BitDepth = 24
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}
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tmp := strings.SplitN(clock, "/", 2)
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if len(tmp) < 1 {
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return fmt.Errorf("invalid clock (%v)", clock)
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}
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tmp1, err := strconv.ParseInt(tmp[0], 10, 64)
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if err != nil {
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return err
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}
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t.SampleRate = int(tmp1)
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if len(tmp) >= 2 {
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tmp1, err := strconv.ParseInt(tmp[1], 10, 64)
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if err != nil {
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return err
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}
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t.ChannelCount = int(tmp1)
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} else {
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t.ChannelCount = 1
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}
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return nil
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}
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// Marshal implements Format.
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func (t *LPCM) Marshal() (string, string) {
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var codec string
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switch t.BitDepth {
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case 8:
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codec = "L8"
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case 16:
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codec = "L16"
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case 24:
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codec = "L24"
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}
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return codec + "/" + strconv.FormatInt(int64(t.SampleRate), 10) +
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"/" + strconv.FormatInt(int64(t.ChannelCount), 10), ""
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}
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// PTSEqualsDTS implements Format.
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func (t *LPCM) PTSEqualsDTS(*rtp.Packet) bool {
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return true
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}
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// CreateDecoder creates a decoder able to decode the content of the format.
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func (t *LPCM) CreateDecoder() *rtplpcm.Decoder {
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d := &rtplpcm.Decoder{
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BitDepth: t.BitDepth,
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SampleRate: t.SampleRate,
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ChannelCount: t.ChannelCount,
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}
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d.Init()
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return d
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}
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// CreateEncoder creates an encoder able to encode the content of the format.
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func (t *LPCM) CreateEncoder() *rtplpcm.Encoder {
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e := &rtplpcm.Encoder{
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PayloadType: t.PayloadTyp,
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BitDepth: t.BitDepth,
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SampleRate: t.SampleRate,
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ChannelCount: t.ChannelCount,
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}
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e.Init()
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return e
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}
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