mirror of
https://github.com/Monibuca/plugin-rtmp.git
synced 2025-10-03 22:56:56 +08:00
578 lines
17 KiB
Go
578 lines
17 KiB
Go
package rtmp
|
|
|
|
import (
|
|
"bufio"
|
|
"encoding/binary"
|
|
"errors"
|
|
"io"
|
|
"net"
|
|
|
|
. "github.com/Monibuca/engine/v4"
|
|
"github.com/Monibuca/engine/v4/util"
|
|
)
|
|
|
|
const (
|
|
SEND_CHUNK_SIZE_MESSAGE = "Send Chunk Size Message"
|
|
SEND_ACK_MESSAGE = "Send Acknowledgement Message"
|
|
SEND_ACK_WINDOW_SIZE_MESSAGE = "Send Window Acknowledgement Size Message"
|
|
SEND_SET_PEER_BANDWIDTH_MESSAGE = "Send Set Peer Bandwidth Message"
|
|
|
|
SEND_STREAM_BEGIN_MESSAGE = "Send Stream Begin Message"
|
|
SEND_SET_BUFFER_LENGTH_MESSAGE = "Send Set Buffer Lengh Message"
|
|
SEND_STREAM_IS_RECORDED_MESSAGE = "Send Stream Is Recorded Message"
|
|
|
|
SEND_PING_REQUEST_MESSAGE = "Send Ping Request Message"
|
|
SEND_PING_RESPONSE_MESSAGE = "Send Ping Response Message"
|
|
|
|
SEND_CONNECT_MESSAGE = "Send Connect Message"
|
|
SEND_CONNECT_RESPONSE_MESSAGE = "Send Connect Response Message"
|
|
|
|
SEND_CREATE_STREAM_MESSAGE = "Send Create Stream Message"
|
|
SEND_CREATE_STREAM_RESPONSE_MESSAGE = "Send Create Stream Response Message"
|
|
|
|
SEND_PLAY_MESSAGE = "Send Play Message"
|
|
SEND_PLAY_RESPONSE_MESSAGE = "Send Play Response Message"
|
|
|
|
SEND_PUBLISH_RESPONSE_MESSAGE = "Send Publish Response Message"
|
|
SEND_PUBLISH_START_MESSAGE = "Send Publish Start Message"
|
|
|
|
SEND_UNPUBLISH_RESPONSE_MESSAGE = "Send Unpublish Response Message"
|
|
|
|
SEND_AUDIO_MESSAGE = "Send Audio Message"
|
|
SEND_FULL_AUDIO_MESSAGE = "Send Full Audio Message"
|
|
SEND_VIDEO_MESSAGE = "Send Video Message"
|
|
SEND_FULL_VDIEO_MESSAGE = "Send Full Video Message"
|
|
)
|
|
|
|
func newConnectResponseMessageData(objectEncoding float64) (amfobj AMFObject) {
|
|
amfobj = make(AMFObject)
|
|
amfobj["fmsVer"] = "monibuca/" + Engine.Version
|
|
amfobj["capabilities"] = 31
|
|
amfobj["mode"] = 1
|
|
amfobj["Author"] = "dexter"
|
|
amfobj["level"] = Level_Status
|
|
amfobj["code"] = NetConnection_Connect_Success
|
|
amfobj["objectEncoding"] = uint64(objectEncoding)
|
|
|
|
return
|
|
}
|
|
|
|
func newPublishResponseMessageData(streamid uint32, code, level string) (amfobj AMFObject) {
|
|
amfobj = make(AMFObject)
|
|
amfobj["code"] = code
|
|
amfobj["level"] = level
|
|
amfobj["streamid"] = streamid
|
|
|
|
return
|
|
}
|
|
|
|
func newPlayResponseMessageData(streamid uint32, code, level string) (amfobj AMFObject) {
|
|
amfobj = make(AMFObject)
|
|
amfobj["code"] = code
|
|
amfobj["level"] = level
|
|
amfobj["streamid"] = streamid
|
|
|
|
return
|
|
}
|
|
|
|
type NetConnection struct {
|
|
*MediaReceiver
|
|
subscribers map[uint32]*Subscriber
|
|
*bufio.Reader
|
|
*net.TCPConn
|
|
bandwidth uint32
|
|
readSeqNum uint32 // 当前读的字节
|
|
writeSeqNum uint32 // 当前写的字节
|
|
totalWrite uint32 // 总共写了多少字节
|
|
totalRead uint32 // 总共读了多少字节
|
|
writeChunkSize int
|
|
readChunkSize int
|
|
incompleteRtmpBody map[uint32]util.Buffer // 完整的RtmpBody,在网络上是被分成一块一块的,需要将其组装起来
|
|
streamID uint32 // 流ID
|
|
rtmpHeader map[uint32]*ChunkHeader // RtmpHeader
|
|
objectEncoding float64
|
|
appName string
|
|
tmpBuf []byte //用来接收小数据，复用内存
|
|
}
|
|
|
|
func (conn *NetConnection) Close() {
|
|
if conn.MediaReceiver != nil {
|
|
conn.UnPublish()
|
|
}
|
|
conn.TCPConn.Close()
|
|
for _, s := range conn.subscribers {
|
|
s.Close()
|
|
}
|
|
}
|
|
|
|
func (conn *NetConnection) ReadFull(buf []byte) (n int, err error) {
|
|
return io.ReadFull(conn.Reader, buf)
|
|
}
|
|
func (conn *NetConnection) SendStreamID0(eventType uint16) (err error) {
|
|
return conn.SendMessage(RTMP_MSG_USER_CONTROL, &StreamIDMessage{UserControlMessage{EventType: eventType}, 0})
|
|
}
|
|
func (conn *NetConnection) SendStreamID(eventType uint16) (err error) {
|
|
return conn.SendMessage(RTMP_MSG_USER_CONTROL, &StreamIDMessage{UserControlMessage{EventType: eventType}, conn.streamID})
|
|
}
|
|
func (conn *NetConnection) SendUserControl(eventType uint16) error {
|
|
return conn.SendMessage(RTMP_MSG_USER_CONTROL, &UserControlMessage{EventType: eventType})
|
|
}
|
|
func (conn *NetConnection) SendCommand(message string, args any) error {
|
|
switch message {
|
|
// case SEND_SET_BUFFER_LENGTH_MESSAGE:
|
|
// if args != nil {
|
|
// return errors.New(SEND_SET_BUFFER_LENGTH_MESSAGE + ", The parameter is nil")
|
|
// }
|
|
// m := new(SetBufferMessage)
|
|
// m.EventType = RTMP_USER_SET_BUFFLEN
|
|
// m.Millisecond = 100
|
|
// m.StreamID = conn.streamID
|
|
// return conn.writeMessage(RTMP_MSG_USER_CONTROL, m)
|
|
case SEND_CREATE_STREAM_MESSAGE:
|
|
if args != nil {
|
|
return errors.New(SEND_CREATE_STREAM_MESSAGE + ", The parameter is nil")
|
|
}
|
|
|
|
m := &CreateStreamMessage{}
|
|
m.CommandName = "createStream"
|
|
m.TransactionId = 2
|
|
return conn.SendMessage(RTMP_MSG_AMF0_COMMAND, m)
|
|
case SEND_CREATE_STREAM_RESPONSE_MESSAGE:
|
|
tid, ok := args.(uint64)
|
|
if !ok {
|
|
return errors.New(SEND_CREATE_STREAM_RESPONSE_MESSAGE + ", The parameter only one(TransactionId uint64)!")
|
|
}
|
|
m := &ResponseCreateStreamMessage{}
|
|
m.CommandName = Response_Result
|
|
m.TransactionId = tid
|
|
m.StreamId = conn.streamID
|
|
return conn.SendMessage(RTMP_MSG_AMF0_COMMAND, m)
|
|
case SEND_PLAY_MESSAGE:
|
|
data, ok := args.(AMFObject)
|
|
if !ok {
|
|
errors.New(SEND_PLAY_MESSAGE + ", The parameter is AMFObject")
|
|
}
|
|
m := new(PlayMessage)
|
|
m.CommandName = "play"
|
|
m.TransactionId = 1
|
|
for i, v := range data {
|
|
if i == "StreamPath" {
|
|
m.StreamName = v.(string)
|
|
} else if i == "Start" {
|
|
m.Start = v.(uint64)
|
|
} else if i == "Duration" {
|
|
m.Duration = v.(uint64)
|
|
} else if i == "Rest" {
|
|
m.Rest = v.(bool)
|
|
}
|
|
}
|
|
return conn.SendMessage(RTMP_MSG_AMF0_COMMAND, m)
|
|
case SEND_PLAY_RESPONSE_MESSAGE:
|
|
data, ok := args.(AMFObject)
|
|
if !ok {
|
|
errors.New(SEND_PLAY_RESPONSE_MESSAGE + ", The parameter is AMFObject")
|
|
}
|
|
|
|
obj := make(AMFObject)
|
|
var streamID uint32
|
|
|
|
for i, v := range data {
|
|
switch i {
|
|
case "code", "level":
|
|
obj[i] = v
|
|
case "streamid":
|
|
if t, ok := v.(uint32); ok {
|
|
streamID = t
|
|
}
|
|
}
|
|
}
|
|
|
|
obj["clientid"] = 1
|
|
|
|
m := new(ResponsePlayMessage)
|
|
m.CommandName = Response_OnStatus
|
|
m.TransactionId = 0
|
|
m.Object = obj
|
|
m.StreamID = streamID
|
|
return conn.SendMessage(RTMP_MSG_AMF0_COMMAND, m)
|
|
case SEND_CONNECT_RESPONSE_MESSAGE:
|
|
//if !ok {
|
|
// errors.New(SEND_CONNECT_RESPONSE_MESSAGE + ", The parameter is AMFObjects(map[string]interface{})")
|
|
//}
|
|
|
|
pro := make(AMFObject)
|
|
info := make(AMFObject)
|
|
|
|
//for i, v := range data {
|
|
// switch i {
|
|
// case "fmsVer", "capabilities", "mode", "Author", "level", "code", "objectEncoding":
|
|
// pro[i] = v
|
|
// }
|
|
//}
|
|
|
|
pro["fmsVer"] = "monibuca/" + Engine.Version
|
|
pro["capabilities"] = 31
|
|
pro["mode"] = 1
|
|
pro["Author"] = "dexter"
|
|
|
|
info["level"] = Level_Status
|
|
info["code"] = NetConnection_Connect_Success
|
|
info["objectEncoding"] = conn.objectEncoding
|
|
m := new(ResponseConnectMessage)
|
|
m.CommandName = Response_Result
|
|
m.TransactionId = 1
|
|
m.Properties = pro
|
|
m.Infomation = info
|
|
return conn.SendMessage(RTMP_MSG_AMF0_COMMAND, m)
|
|
case SEND_CONNECT_MESSAGE:
|
|
data, ok := args.(AMFObject)
|
|
if !ok {
|
|
errors.New(SEND_CONNECT_MESSAGE + ", The parameter is AMFObjects(map[string]interface{})")
|
|
}
|
|
|
|
obj := make(AMFObject)
|
|
info := make(AMFObject)
|
|
|
|
for i, v := range data {
|
|
switch i {
|
|
case "videoFunction", "objectEncoding", "fpad", "flashVer", "capabilities", "pageUrl", "swfUrl", "tcUrl", "videoCodecs", "app", "audioCodecs":
|
|
obj[i] = v
|
|
}
|
|
}
|
|
|
|
m := new(CallMessage)
|
|
m.CommandName = "connect"
|
|
m.TransactionId = 1
|
|
m.Object = obj
|
|
m.Optional = info
|
|
return conn.SendMessage(RTMP_MSG_AMF0_COMMAND, m)
|
|
case SEND_PUBLISH_RESPONSE_MESSAGE, SEND_PUBLISH_START_MESSAGE:
|
|
info := args.(AMFObject)
|
|
info["clientid"] = 1
|
|
m := new(ResponsePublishMessage)
|
|
m.CommandName = Response_OnStatus
|
|
m.TransactionId = 0
|
|
m.Infomation = info
|
|
m.StreamID = info["streamid"].(uint32)
|
|
delete(info, "streamid")
|
|
return conn.SendMessage(RTMP_MSG_AMF0_COMMAND, m)
|
|
case SEND_UNPUBLISH_RESPONSE_MESSAGE:
|
|
data, ok := args.(AMFObject)
|
|
if !ok {
|
|
errors.New(SEND_UNPUBLISH_RESPONSE_MESSAGE + ", The parameter is AMFObjects(map[string]interface{})")
|
|
}
|
|
m := new(CommandMessage)
|
|
m.TransactionId = data["tid"].(uint64)
|
|
m.CommandName = "releaseStream" + data["level"].(string)
|
|
return conn.SendMessage(RTMP_MSG_AMF0_COMMAND, m)
|
|
}
|
|
return errors.New("send message no exist")
|
|
}
|
|
|
|
// 当发送音视频数据的时候,当块类型为12的时候,Chunk Message Header有一个字段TimeStamp,指明一个时间
|
|
// 当块类型为4,8的时候,Chunk Message Header有一个字段TimeStamp Delta,记录与上一个Chunk的时间差值
|
|
// 当块类型为0的时候,Chunk Message Header没有时间字段,与上一个Chunk时间值相同
|
|
func (conn *NetConnection) sendAVMessage(ts uint32, payload net.Buffers, isAudio bool, isFirst bool) (err error) {
|
|
if conn.writeSeqNum > conn.bandwidth {
|
|
conn.totalWrite += conn.writeSeqNum
|
|
conn.writeSeqNum = 0
|
|
conn.SendMessage(RTMP_MSG_ACK, Uint32Message(conn.totalWrite))
|
|
conn.SendStreamID0(RTMP_USER_PING_REQUEST)
|
|
}
|
|
|
|
var head *ChunkHeader
|
|
if isAudio {
|
|
head = newRtmpHeader(RTMP_CSID_AUDIO, ts, uint32(util.SizeOfBuffers(payload)), RTMP_MSG_AUDIO, conn.streamID, 0)
|
|
} else {
|
|
head = newRtmpHeader(RTMP_CSID_VIDEO, ts, uint32(util.SizeOfBuffers(payload)), RTMP_MSG_VIDEO, conn.streamID, 0)
|
|
}
|
|
|
|
// 第一次是发送关键帧,需要完整的消息头(Chunk Basic Header(1) + Chunk Message Header(11) + Extended Timestamp(4)(可能会要包括))
|
|
// 后面开始,就是直接发送音视频数据,那么直接发送,不需要完整的块(Chunk Basic Header(1) + Chunk Message Header(7))
|
|
// 当Chunk Type为0时(即Chunk12),
|
|
var chunk1 net.Buffers
|
|
if isFirst {
|
|
chunk1 = append(chunk1, conn.encodeChunk12(head))
|
|
} else {
|
|
chunk1 = append(chunk1, conn.encodeChunk8(head))
|
|
}
|
|
chunks := util.SplitBuffers(payload, conn.writeChunkSize)
|
|
chunk1 = append(chunk1, chunks[0]...)
|
|
conn.writeSeqNum += uint32(util.SizeOfBuffers(chunk1))
|
|
_, err = chunk1.WriteTo(conn)
|
|
// 如果在音视频数据太大,一次发送不完,那么这里进行分割(data + Chunk Basic Header(1))
|
|
for _, chunk := range chunks[1:] {
|
|
chunk1 = net.Buffers{conn.encodeChunk1(head)}
|
|
chunk1 = append(chunk1, chunk...)
|
|
conn.writeSeqNum += uint32(util.SizeOfBuffers(chunk1))
|
|
_, err = chunk1.WriteTo(conn)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (conn *NetConnection) readChunk() (msg *Chunk, err error) {
|
|
head, err := conn.ReadByte()
|
|
conn.readSeqNum++
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
ChunkStreamID := uint32(head & 0x3f) // 0011 1111
|
|
ChunkType := head >> 6 // 1100 0000
|
|
|
|
// 如果块流ID为0,1的话,就需要计算.
|
|
ChunkStreamID, err = conn.readChunkStreamID(ChunkStreamID)
|
|
if err != nil {
|
|
return nil, errors.New("get chunk stream id error :" + err.Error())
|
|
}
|
|
|
|
h, ok := conn.rtmpHeader[ChunkStreamID]
|
|
if !ok {
|
|
h = &ChunkHeader{
|
|
ChunkBasicHeader: ChunkBasicHeader{
|
|
ChunkStreamID,
|
|
ChunkType,
|
|
},
|
|
}
|
|
conn.rtmpHeader[ChunkStreamID] = h
|
|
}
|
|
currentBody, ok := conn.incompleteRtmpBody[ChunkStreamID]
|
|
if ChunkType != 3 && ok && currentBody.Len() > 0 {
|
|
// 如果块类型不为3,那么这个rtmp的body应该为空.
|
|
return nil, errors.New("incompleteRtmpBody error")
|
|
}
|
|
if err = conn.readChunkType(h, ChunkType); err != nil {
|
|
return nil, errors.New("get chunk type error :" + err.Error())
|
|
}
|
|
msgLen := int(h.MessageLength)
|
|
|
|
if !ok || currentBody.Len() == 0 {
|
|
currentBody = util.Buffer(make([]byte, 0, msgLen))
|
|
conn.incompleteRtmpBody[ChunkStreamID] = currentBody
|
|
}
|
|
|
|
needRead := conn.readChunkSize
|
|
if unRead := msgLen - currentBody.Len(); unRead < needRead {
|
|
needRead = unRead
|
|
}
|
|
if n, err := conn.ReadFull(currentBody.Malloc(needRead)); err != nil {
|
|
plugin.Error(err)
|
|
return nil, err
|
|
} else {
|
|
conn.readSeqNum += uint32(n)
|
|
}
|
|
// 如果读完了一个完整的块,那么就返回这个消息,没读完继续递归读块.
|
|
if currentBody.Len() == msgLen {
|
|
msg = &Chunk{
|
|
ChunkHeader: *h,
|
|
Body: currentBody.ReadN(msgLen),
|
|
}
|
|
err = GetRtmpMessage(msg)
|
|
}
|
|
conn.incompleteRtmpBody[ChunkStreamID] = currentBody
|
|
return
|
|
}
|
|
|
|
func (conn *NetConnection) readChunkStreamID(csid uint32) (chunkStreamID uint32, err error) {
|
|
chunkStreamID = csid
|
|
|
|
switch csid {
|
|
case 0:
|
|
{
|
|
u8, err := conn.ReadByte()
|
|
conn.readSeqNum++
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
chunkStreamID = 64 + uint32(u8)
|
|
}
|
|
case 1:
|
|
{
|
|
u16_0, err1 := conn.ReadByte()
|
|
if err1 != nil {
|
|
return 0, err1
|
|
}
|
|
u16_1, err1 := conn.ReadByte()
|
|
if err1 != nil {
|
|
return 0, err1
|
|
}
|
|
conn.readSeqNum += 2
|
|
chunkStreamID = 64 + uint32(u16_0) + (uint32(u16_1) << 8)
|
|
}
|
|
}
|
|
|
|
return chunkStreamID, nil
|
|
}
|
|
|
|
func (conn *NetConnection) readChunkType(h *ChunkHeader, chunkType byte) (err error) {
|
|
b := conn.tmpBuf[:3]
|
|
switch chunkType {
|
|
case 0:
|
|
{
|
|
// Timestamp 3 bytes
|
|
if _, err := conn.ReadFull(b); err != nil {
|
|
return err
|
|
}
|
|
conn.readSeqNum += 3
|
|
util.GetBE(b, &h.Timestamp) //type = 0的时间戳为绝对时间,其他的都为相对时间
|
|
|
|
// Message Length 3 bytes
|
|
if _, err = conn.ReadFull(b); err != nil { // 读取Message Length,这里的长度指的是一条信令或者一帧视频数据或音频数据的长度,而不是Chunk data的长度.
|
|
return err
|
|
}
|
|
conn.readSeqNum += 3
|
|
util.GetBE(b, &h.MessageLength)
|
|
// Message Type ID 1 bytes
|
|
v, err := conn.ReadByte() // 读取Message Type ID
|
|
if err != nil {
|
|
return err
|
|
}
|
|
conn.readSeqNum++
|
|
h.MessageTypeID = v
|
|
|
|
// Message Stream ID 4bytes
|
|
b = conn.tmpBuf
|
|
if _, err = conn.ReadFull(b); err != nil { // 读取Message Stream ID
|
|
return err
|
|
}
|
|
conn.readSeqNum += 4
|
|
h.MessageStreamID = binary.LittleEndian.Uint32(b)
|
|
|
|
// ExtendTimestamp 4 bytes
|
|
if h.Timestamp == 0xffffff { // 对于type 0的chunk,绝对时间戳在这里表示,如果时间戳值大于等于0xffffff(16777215),该值必须是0xffffff,且时间戳扩展字段必须发送,其他情况没有要求
|
|
if _, err = conn.ReadFull(b); err != nil {
|
|
return err
|
|
}
|
|
conn.readSeqNum += 4
|
|
util.GetBE(b, &h.ExtendTimestamp)
|
|
}
|
|
}
|
|
case 1:
|
|
{
|
|
// Timestamp 3 bytes
|
|
if _, err = conn.ReadFull(b); err != nil {
|
|
return err
|
|
}
|
|
conn.readSeqNum += 3
|
|
h.ChunkType = chunkType
|
|
util.GetBE(b, &h.Timestamp)
|
|
// Message Length 3 bytes
|
|
if _, err = conn.ReadFull(b); err != nil {
|
|
return err
|
|
}
|
|
conn.readSeqNum += 3
|
|
util.GetBE(b, &h.MessageLength)
|
|
// Message Type ID 1 bytes
|
|
v, err := conn.ReadByte()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
conn.readSeqNum++
|
|
h.MessageTypeID = v
|
|
|
|
// ExtendTimestamp 4 bytes
|
|
if h.Timestamp == 0xffffff {
|
|
b = conn.tmpBuf
|
|
if _, err := conn.ReadFull(b); err != nil {
|
|
return err
|
|
}
|
|
conn.readSeqNum += 4
|
|
util.GetBE(b, &h.ExtendTimestamp)
|
|
}
|
|
}
|
|
case 2:
|
|
{
|
|
// Timestamp 3 bytes
|
|
if _, err = conn.ReadFull(b); err != nil {
|
|
return err
|
|
}
|
|
conn.readSeqNum += 3
|
|
h.ChunkType = chunkType
|
|
util.GetBE(b, &h.Timestamp)
|
|
// ExtendTimestamp 4 bytes
|
|
if h.Timestamp == 0xffffff {
|
|
b = conn.tmpBuf
|
|
if _, err := conn.ReadFull(b); err != nil {
|
|
return err
|
|
}
|
|
conn.readSeqNum += 4
|
|
util.GetBE(b, &h.ExtendTimestamp)
|
|
}
|
|
}
|
|
case 3:
|
|
{
|
|
//h.ChunkType = chunkType
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (conn *NetConnection) RecvMessage() (msg *Chunk, err error) {
|
|
if conn.readSeqNum >= conn.bandwidth {
|
|
conn.totalRead += conn.readSeqNum
|
|
conn.readSeqNum = 0
|
|
err = conn.SendMessage(RTMP_MSG_ACK, Uint32Message(conn.totalRead))
|
|
}
|
|
for msg == nil && err == nil {
|
|
if msg, err = conn.readChunk(); msg != nil {
|
|
switch msg.MessageTypeID {
|
|
case RTMP_MSG_CHUNK_SIZE:
|
|
conn.readChunkSize = int(msg.MsgData.(Uint32Message))
|
|
case RTMP_MSG_ABORT:
|
|
delete(conn.incompleteRtmpBody, uint32(msg.MsgData.(Uint32Message)))
|
|
case RTMP_MSG_ACK, RTMP_MSG_EDGE:
|
|
case RTMP_MSG_USER_CONTROL:
|
|
if _, ok := msg.MsgData.(*PingRequestMessage); ok {
|
|
conn.SendUserControl(RTMP_USER_PING_RESPONSE)
|
|
}
|
|
case RTMP_MSG_ACK_SIZE:
|
|
conn.bandwidth = uint32(msg.MsgData.(Uint32Message))
|
|
case RTMP_MSG_BANDWIDTH:
|
|
conn.bandwidth = msg.MsgData.(*SetPeerBandwidthMessage).AcknowledgementWindowsize
|
|
case RTMP_MSG_AMF0_COMMAND, RTMP_MSG_AUDIO, RTMP_MSG_VIDEO:
|
|
return msg, err
|
|
}
|
|
}
|
|
}
|
|
return
|
|
}
|
|
func (conn *NetConnection) SendMessage(t byte, msg RtmpMessage) (err error) {
|
|
body := msg.Encode()
|
|
head := newChunkHeader(t)
|
|
head.MessageLength = uint32(len(body))
|
|
if sid, ok := msg.(HaveStreamID); ok {
|
|
head.MessageStreamID = sid.GetStreamID()
|
|
}
|
|
if conn.writeSeqNum > conn.bandwidth {
|
|
conn.totalWrite += conn.writeSeqNum
|
|
conn.writeSeqNum = 0
|
|
err = conn.SendMessage(RTMP_MSG_ACK, Uint32Message(conn.totalWrite))
|
|
err = conn.SendStreamID0(RTMP_USER_PING_REQUEST)
|
|
}
|
|
var chunk = net.Buffers{conn.encodeChunk12(head)}
|
|
if len(body) > conn.writeChunkSize {
|
|
chunk = append(chunk, body[:conn.writeChunkSize])
|
|
body = body[conn.writeChunkSize:]
|
|
conn.writeSeqNum += uint32(util.SizeOfBuffers(chunk))
|
|
_, err = chunk.WriteTo(conn)
|
|
for len(body) > conn.writeChunkSize {
|
|
chunk = append(chunk[:0], conn.encodeChunk12(head), body[:conn.writeChunkSize])
|
|
body = body[conn.writeChunkSize:]
|
|
conn.writeSeqNum += uint32(util.SizeOfBuffers(chunk))
|
|
_, err = chunk.WriteTo(conn)
|
|
}
|
|
chunk = append(chunk[:0], conn.encodeChunk12(head), body)
|
|
conn.writeSeqNum += uint32(util.SizeOfBuffers(chunk))
|
|
_, err = chunk.WriteTo(conn)
|
|
} else {
|
|
chunk = append(chunk, body)
|
|
conn.writeSeqNum += uint32(util.SizeOfBuffers(chunk))
|
|
_, err = chunk.WriteTo(conn)
|
|
}
|
|
|
|
return nil
|
|
}
|