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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| package formats | ||
|
|
||
| import ( | ||
| "encoding/hex" | ||
| "fmt" | ||
| "strconv" | ||
| "strings" | ||
|
|
||
| "github.com/pion/rtp" | ||
| ) | ||
|
|
||
| // MPEG4Video is a RTP format that uses the video codec defined in MPEG-4 part 2. | ||
| // Specification: https://datatracker.ietf.org/doc/html/rfc6416#section-7.1 | ||
| type MPEG4Video struct { | ||
| PayloadTyp uint8 | ||
| ProfileLevelID int | ||
| Config []byte | ||
| } | ||
|
|
||
| // String implements Format. | ||
| func (f *MPEG4Video) String() string { | ||
| return "MPEG4-video" | ||
| } | ||
|
|
||
| // ClockRate implements Format. | ||
| func (f *MPEG4Video) ClockRate() int { | ||
| return 90000 | ||
| } | ||
|
|
||
| // PayloadType implements Format. | ||
| func (f *MPEG4Video) PayloadType() uint8 { | ||
| return f.PayloadTyp | ||
| } | ||
|
|
||
| func (f *MPEG4Video) unmarshal( | ||
| payloadType uint8, clock string, codec string, | ||
| rtpmap string, fmtp map[string]string, | ||
| ) error { | ||
| f.PayloadTyp = payloadType | ||
|
|
||
| // If this parameter is not specified by | ||
| // the procedure, its default value of 1 (Simple Profile/Level 1) is | ||
| // used. | ||
| f.ProfileLevelID = 1 | ||
|
|
||
| for key, val := range fmtp { | ||
| switch key { | ||
| case "profile-level-id": | ||
| tmp, err := strconv.ParseInt(val, 10, 64) | ||
| if err != nil { | ||
| return fmt.Errorf("invalid profile-level-id: %v", val) | ||
| } | ||
|
|
||
| f.ProfileLevelID = int(tmp) | ||
|
|
||
| case "config": | ||
| var err error | ||
| f.Config, err = hex.DecodeString(val) | ||
| if err != nil { | ||
| return fmt.Errorf("invalid config: %v", val) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| // Marshal implements Format. | ||
| func (f *MPEG4Video) Marshal() (string, map[string]string) { | ||
| fmtp := map[string]string{ | ||
| "profile-level-id": strconv.FormatInt(int64(f.ProfileLevelID), 10), | ||
| "config": strings.ToUpper(hex.EncodeToString(f.Config)), | ||
| } | ||
|
|
||
| return "MP4V-ES/90000", fmtp | ||
| } | ||
|
|
||
| // PTSEqualsDTS implements Format. | ||
| func (f *MPEG4Video) PTSEqualsDTS(*rtp.Packet) bool { | ||
| return true | ||
| } |
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