mirror of
https://github.com/aler9/gortsplib
synced 2025-10-04 14:52:46 +08:00
a1396206b5
* split tracks from medias * move tracks into dedicated package * move media into dedicated package * edit Medias.Marshal() in order to return SDP * add medias.Find() and simplify examples * improve coverage * fix rebase errors * replace TrackIDs with MediaIDs * implement media-specific and track-specific callbacks for reading RTCP and RTP packets * rename publish into record, read into play * add v2 tag * rename tracks into formats
109 lines
2.1 KiB
Go
109 lines
2.1 KiB
Go
package format
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import (
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"encoding/base64"
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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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)
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// Vorbis is a Vorbis format.
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type Vorbis struct {
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PayloadTyp uint8
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SampleRate int
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ChannelCount int
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Configuration []byte
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}
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// String implements Format.
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func (t *Vorbis) String() string {
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return "Vorbis"
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}
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// ClockRate implements Format.
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func (t *Vorbis) 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 *Vorbis) PayloadType() uint8 {
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return t.PayloadTyp
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}
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func (t *Vorbis) unmarshal(payloadType uint8, clock string, codec string, rtpmap string, fmtp string) error {
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t.PayloadTyp = payloadType
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tmp := strings.SplitN(clock, "/", 32)
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if len(tmp) != 2 {
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return fmt.Errorf("invalid clock (%v)", clock)
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}
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sampleRate, 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(sampleRate)
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channelCount, 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(channelCount)
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if fmtp == "" {
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return fmt.Errorf("fmtp attribute is missing")
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}
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for _, kv := range strings.Split(fmtp, ";") {
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kv = strings.Trim(kv, " ")
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if len(kv) == 0 {
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continue
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}
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tmp := strings.SplitN(kv, "=", 2)
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if len(tmp) != 2 {
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return fmt.Errorf("invalid fmtp (%v)", fmtp)
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}
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if tmp[0] == "configuration" {
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conf, err := base64.StdEncoding.DecodeString(tmp[1])
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if err != nil {
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return fmt.Errorf("invalid AAC config (%v)", tmp[1])
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}
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t.Configuration = conf
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}
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}
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if t.Configuration == nil {
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return fmt.Errorf("config is missing (%v)", fmtp)
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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 *Vorbis) Marshal() (string, string) {
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return "VORBIS/" + strconv.FormatInt(int64(t.SampleRate), 10) +
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"/" + strconv.FormatInt(int64(t.ChannelCount), 10),
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"configuration=" + base64.StdEncoding.EncodeToString(t.Configuration)
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}
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// Clone implements Format.
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func (t *Vorbis) Clone() Format {
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return &Vorbis{
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PayloadTyp: t.PayloadTyp,
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SampleRate: t.SampleRate,
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ChannelCount: t.ChannelCount,
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Configuration: t.Configuration,
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}
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}
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// PTSEqualsDTS implements Format.
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func (t *Vorbis) PTSEqualsDTS(*rtp.Packet) bool {
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return true
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}
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