mirror of
https://github.com/langhuihui/monibuca.git
synced 2025-12-24 13:48:04 +08:00
331 lines
8.1 KiB
Go
331 lines
8.1 KiB
Go
package mp4
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"path/filepath"
|
|
"time"
|
|
|
|
m7s "m7s.live/v5"
|
|
"m7s.live/v5/pkg"
|
|
"m7s.live/v5/pkg/codec"
|
|
"m7s.live/v5/pkg/config"
|
|
"m7s.live/v5/pkg/task"
|
|
"m7s.live/v5/plugin/mp4/pkg/box"
|
|
rtmp "m7s.live/v5/plugin/rtmp/pkg"
|
|
)
|
|
|
|
type WriteTrailerQueueTask struct {
|
|
task.Work
|
|
}
|
|
|
|
var writeTrailerQueueTask WriteTrailerQueueTask
|
|
|
|
type writeTrailerTask struct {
|
|
task.Task
|
|
muxer *Muxer
|
|
file *os.File
|
|
}
|
|
|
|
func (task *writeTrailerTask) Start() (err error) {
|
|
err = task.muxer.WriteTrailer(task.file)
|
|
if err != nil {
|
|
task.Error("write trailer", "err", err)
|
|
if task.file != nil {
|
|
if errClose := task.file.Close(); errClose != nil {
|
|
return errClose
|
|
}
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
const BeforeMdatData = 16 // free box + mdat box header or big mdat box header
|
|
// 将 moov 从末尾移动到前方
|
|
// 将 ftyp + free(optional) + moov + mdat 写入临时文件, 然后替换原文件
|
|
func (t *writeTrailerTask) Run() (err error) {
|
|
t.Info("write trailer")
|
|
var temp *os.File
|
|
temp, err = os.CreateTemp("", "*.mp4")
|
|
if err != nil {
|
|
t.Error("create temp file", "err", err)
|
|
return
|
|
}
|
|
|
|
defer os.Remove(temp.Name())
|
|
|
|
_, err = t.file.Seek(0, io.SeekStart)
|
|
if err != nil {
|
|
t.Error("seek file", "err", err)
|
|
return
|
|
}
|
|
// 复制 mdat box之前的内容
|
|
_, err = io.CopyN(temp, t.file, int64(t.muxer.mdatOffset)-BeforeMdatData)
|
|
if err != nil {
|
|
return
|
|
}
|
|
for _, track := range t.muxer.Tracks {
|
|
for i := range len(track.Samplelist) {
|
|
track.Samplelist[i].Offset += int64(t.muxer.moov.Size())
|
|
}
|
|
}
|
|
err = t.muxer.WriteMoov(temp)
|
|
if err != nil {
|
|
return
|
|
}
|
|
// 复制 mdat box
|
|
_, err = io.CopyN(temp, t.file, int64(t.muxer.mdatSize)+BeforeMdatData)
|
|
|
|
if err != nil {
|
|
if err == pkg.ErrSkip {
|
|
return task.ErrTaskComplete
|
|
}
|
|
t.Error("rewrite with moov", "err", err)
|
|
return
|
|
}
|
|
if _, err = t.file.Seek(0, io.SeekStart); err != nil {
|
|
t.Error("seek file", "err", err)
|
|
return
|
|
}
|
|
if _, err = temp.Seek(0, io.SeekStart); err != nil {
|
|
t.Error("seek temp file", "err", err)
|
|
return
|
|
}
|
|
if _, err = io.Copy(t.file, temp); err != nil {
|
|
t.Error("copy file", "err", err)
|
|
return
|
|
}
|
|
if err = t.file.Close(); err != nil {
|
|
t.Error("close file", "err", err)
|
|
return
|
|
}
|
|
if err = temp.Close(); err != nil {
|
|
t.Error("close temp file", "err", err)
|
|
}
|
|
return
|
|
}
|
|
|
|
func init() {
|
|
m7s.Servers.AddTask(&writeTrailerQueueTask)
|
|
}
|
|
|
|
func NewRecorder(conf config.Record) m7s.IRecorder {
|
|
return &Recorder{}
|
|
}
|
|
|
|
type Recorder struct {
|
|
m7s.DefaultRecorder
|
|
muxer *Muxer
|
|
file *os.File
|
|
}
|
|
|
|
func (r *Recorder) writeTailer(end time.Time) {
|
|
r.WriteTail(end, &writeTrailerQueueTask)
|
|
writeTrailerQueueTask.AddTask(&writeTrailerTask{
|
|
muxer: r.muxer,
|
|
file: r.file,
|
|
}, r.Logger)
|
|
}
|
|
|
|
var CustomFileName = func(job *m7s.RecordJob) string {
|
|
if job.RecConf.Fragment == 0 {
|
|
return fmt.Sprintf("%s.mp4", job.RecConf.FilePath)
|
|
}
|
|
return filepath.Join(job.RecConf.FilePath, fmt.Sprintf("%d.mp4", time.Now().Unix()))
|
|
}
|
|
|
|
func (r *Recorder) createStream(start time.Time) (err error) {
|
|
return r.CreateStream(start, CustomFileName)
|
|
}
|
|
|
|
func (r *Recorder) Dispose() {
|
|
if r.muxer != nil {
|
|
r.writeTailer(time.Now())
|
|
}
|
|
}
|
|
|
|
func (r *Recorder) Run() (err error) {
|
|
recordJob := &r.RecordJob
|
|
sub := recordJob.Subscriber
|
|
var audioTrack, videoTrack *Track
|
|
startTime := time.Now()
|
|
if recordJob.Event != nil {
|
|
startTime = startTime.Add(-time.Duration(recordJob.Event.BeforeDuration) * time.Millisecond)
|
|
}
|
|
err = r.createStream(startTime)
|
|
if err != nil {
|
|
return
|
|
}
|
|
r.file, err = os.Create(r.Event.FilePath)
|
|
if err != nil {
|
|
return
|
|
}
|
|
if recordJob.RecConf.Type == "fmp4" {
|
|
r.Event.Type = "fmp4"
|
|
r.muxer = NewMuxerWithStreamPath(FLAG_FRAGMENT, r.Event.StreamPath)
|
|
} else {
|
|
r.muxer = NewMuxerWithStreamPath(0, r.Event.StreamPath)
|
|
}
|
|
r.muxer.WriteInitSegment(r.file)
|
|
var at, vt *pkg.AVTrack
|
|
|
|
checkEventRecordStop := func(absTime uint32) (err error) {
|
|
if absTime >= recordJob.Event.AfterDuration+recordJob.Event.BeforeDuration {
|
|
r.RecordJob.Stop(task.ErrStopByUser)
|
|
}
|
|
return
|
|
}
|
|
|
|
checkFragment := func(absTime uint32) (err error) {
|
|
if duration := int64(absTime); time.Duration(duration)*time.Millisecond >= recordJob.RecConf.Fragment {
|
|
now := time.Now()
|
|
r.writeTailer(now)
|
|
err = r.createStream(now)
|
|
if err != nil {
|
|
return
|
|
}
|
|
at, vt = nil, nil
|
|
if vr := sub.VideoReader; vr != nil {
|
|
vr.ResetAbsTime()
|
|
//seq := vt.SequenceFrame.(*rtmp.RTMPVideo)
|
|
//offset = int64(seq.Size + 15)
|
|
}
|
|
if ar := sub.AudioReader; ar != nil {
|
|
ar.ResetAbsTime()
|
|
}
|
|
}
|
|
return
|
|
}
|
|
|
|
return m7s.PlayBlock(sub, func(audio *pkg.RawAudio) error {
|
|
r.Event.Duration = sub.AudioReader.AbsTime
|
|
if sub.VideoReader == nil {
|
|
if recordJob.Event != nil {
|
|
err := checkEventRecordStop(sub.VideoReader.AbsTime)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if recordJob.RecConf.Fragment != 0 {
|
|
err := checkFragment(sub.AudioReader.AbsTime)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
if at == nil {
|
|
at = sub.AudioReader.Track
|
|
switch ctx := at.ICodecCtx.GetBase().(type) {
|
|
case *codec.AACCtx:
|
|
track := r.muxer.AddTrack(box.MP4_CODEC_AAC)
|
|
audioTrack = track
|
|
track.SampleSize = uint16(16)
|
|
track.SampleRate = uint32(ctx.SampleRate())
|
|
track.ChannelCount = uint8(ctx.ChannelLayout().Count())
|
|
track.ExtraData = ctx.ConfigBytes
|
|
case *codec.PCMACtx:
|
|
track := r.muxer.AddTrack(box.MP4_CODEC_G711A)
|
|
audioTrack = track
|
|
track.SampleSize = uint16(ctx.SampleSize)
|
|
track.SampleRate = uint32(ctx.SampleRate)
|
|
track.ChannelCount = uint8(ctx.Channels)
|
|
case *codec.PCMUCtx:
|
|
track := r.muxer.AddTrack(box.MP4_CODEC_G711U)
|
|
audioTrack = track
|
|
track.SampleSize = uint16(ctx.SampleSize)
|
|
track.SampleRate = uint32(ctx.SampleRate)
|
|
track.ChannelCount = uint8(ctx.Channels)
|
|
}
|
|
}
|
|
dts := sub.AudioReader.AbsTime
|
|
return r.muxer.WriteSample(r.file, audioTrack, box.Sample{
|
|
Data: audio.ToBytes(),
|
|
Timestamp: uint32(dts),
|
|
})
|
|
}, func(video *rtmp.RTMPVideo) error {
|
|
r.Event.Duration = sub.VideoReader.AbsTime
|
|
if sub.VideoReader.Value.IDR {
|
|
if recordJob.Event != nil {
|
|
err := checkEventRecordStop(sub.VideoReader.AbsTime)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if recordJob.RecConf.Fragment != 0 {
|
|
err := checkFragment(sub.VideoReader.AbsTime)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
offset := 5
|
|
bytes := video.ToBytes()
|
|
if vt == nil {
|
|
vt = sub.VideoReader.Track
|
|
switch ctx := vt.ICodecCtx.GetBase().(type) {
|
|
case *codec.H264Ctx:
|
|
track := r.muxer.AddTrack(box.MP4_CODEC_H264)
|
|
videoTrack = track
|
|
track.ExtraData = ctx.Record
|
|
track.Width = uint32(ctx.Width())
|
|
track.Height = uint32(ctx.Height())
|
|
case *codec.H265Ctx:
|
|
track := r.muxer.AddTrack(box.MP4_CODEC_H265)
|
|
videoTrack = track
|
|
track.ExtraData = ctx.Record
|
|
track.Width = uint32(ctx.Width())
|
|
track.Height = uint32(ctx.Height())
|
|
}
|
|
}
|
|
switch ctx := vt.ICodecCtx.(type) {
|
|
case *codec.H264Ctx:
|
|
if bytes[1] == 0 {
|
|
// Check if video resolution has changed
|
|
if uint32(ctx.Width()) != videoTrack.Width || uint32(ctx.Height()) != videoTrack.Height {
|
|
r.Info("Video resolution changed, restarting recording",
|
|
"old", fmt.Sprintf("%dx%d", videoTrack.Width, videoTrack.Height),
|
|
"new", fmt.Sprintf("%dx%d", ctx.Width(), ctx.Height()))
|
|
now := time.Now()
|
|
r.writeTailer(now)
|
|
err = r.createStream(now)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
at, vt = nil, nil
|
|
if vr := sub.VideoReader; vr != nil {
|
|
vr.ResetAbsTime()
|
|
//seq := vt.SequenceFrame.(*rtmp.RTMPVideo)
|
|
//offset = int64(seq.Size + 15)
|
|
}
|
|
if ar := sub.AudioReader; ar != nil {
|
|
ar.ResetAbsTime()
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
case *rtmp.H265Ctx:
|
|
if ctx.Enhanced {
|
|
switch t := bytes[0] & 0b1111; t {
|
|
case rtmp.PacketTypeCodedFrames:
|
|
offset += 3
|
|
case rtmp.PacketTypeSequenceStart:
|
|
return nil
|
|
case rtmp.PacketTypeCodedFramesX:
|
|
default:
|
|
r.Warn("unknown h265 packet type", "type", t)
|
|
return nil
|
|
}
|
|
} else if bytes[1] == 0 {
|
|
return nil
|
|
}
|
|
}
|
|
return r.muxer.WriteSample(r.file, videoTrack, box.Sample{
|
|
KeyFrame: sub.VideoReader.Value.IDR,
|
|
Data: bytes[offset:],
|
|
Timestamp: uint32(sub.VideoReader.AbsTime),
|
|
CTS: video.CTS,
|
|
})
|
|
})
|
|
}
|