av/rtmp/session.go

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package rtmp
import (
"errors"
)
// session provides parameters required for an rtmp communication session.
type Session struct {
rtmp *C_RTMP
url string
timeout uint
}
// NewSession returns a new session.
func NewSession(url string, connectTimeout uint) *Session {
return &Session{
url: url,
timeout: connectTimeout,
}
}
// Open establishes an rtmp connection with the url passed into the
// constructor
func (s *Session) Open() error {
if s.rtmp != nil {
return errors.New("rtmp: attempt to start already running session")
}
var err error
s.rtmp, err = startSession(s.rtmp, s.url, uint32(s.timeout))
if s.rtmp == nil {
return err
}
return nil
}
// Close terminates the rtmp connection
func (s *Session) Close() error {
if s.rtmp == nil {
return Err(3)
}
ret := endSession(s.rtmp)
s.rtmp = nil
if ret != 0 {
return Err(ret)
}
return nil
}
// Write writes a frame (flv tag) to the rtmp connection
func (s *Session) Write(data []byte) (int, error) {
if s.rtmp == nil {
return 0, Err(3)
}
if C_RTMP_IsConnected(s.rtmp) == 0 {
//if C.RTMP_IsConnected(s.rtmp) == 0 {
return 0, Err(1)
}
if C_RTMP_Write(s.rtmp, data) == 0 {
//if C.RTMP_Write(s.rtmp, (*byte)(unsafe.Pointer(&data[0])), int32(len(data))) == 0 {
return 0, Err(2)
}
return len(data), nil
}