mirror of
https://github.com/langhuihui/monibuca.git
synced 2025-12-24 13:48:04 +08:00
119 lines
3.5 KiB
Go
119 lines
3.5 KiB
Go
package mp4
|
|
|
|
import (
|
|
"errors"
|
|
"io"
|
|
"strings"
|
|
"time"
|
|
|
|
m7s "m7s.live/v5"
|
|
"m7s.live/v5/pkg/codec"
|
|
"m7s.live/v5/pkg/util"
|
|
"m7s.live/v5/plugin/mp4/pkg/box"
|
|
rtmp "m7s.live/v5/plugin/rtmp/pkg"
|
|
)
|
|
|
|
type HTTPReader struct {
|
|
m7s.HTTPFilePuller
|
|
}
|
|
|
|
func (p *HTTPReader) Run() (err error) {
|
|
pullJob := &p.PullJob
|
|
publisher := pullJob.Publisher
|
|
allocator := util.NewScalableMemoryAllocator(1 << 10)
|
|
var demuxer *Demuxer
|
|
defer allocator.Recycle()
|
|
switch v := p.ReadCloser.(type) {
|
|
case io.ReadSeeker:
|
|
demuxer = NewDemuxer(v)
|
|
default:
|
|
var content []byte
|
|
content, err = io.ReadAll(p.ReadCloser)
|
|
demuxer = NewDemuxer(strings.NewReader(string(content)))
|
|
}
|
|
if err = demuxer.Demux(); err != nil {
|
|
return
|
|
}
|
|
publisher.OnSeek = func(seekTime time.Time) {
|
|
p.Stop(errors.New("seek"))
|
|
pullJob.Args.Set(util.StartKey, seekTime.Local().Format(util.LocalTimeFormat))
|
|
newHTTPReader := &HTTPReader{}
|
|
pullJob.AddTask(newHTTPReader)
|
|
}
|
|
if pullJob.Args.Get(util.StartKey) != "" {
|
|
seekTime, _ := time.Parse(util.LocalTimeFormat, pullJob.Args.Get(util.StartKey))
|
|
demuxer.SeekTime(uint64(seekTime.UnixMilli()))
|
|
}
|
|
for _, track := range demuxer.Tracks {
|
|
switch track.Cid {
|
|
case box.MP4_CODEC_H264:
|
|
var sequence rtmp.RTMPVideo
|
|
sequence.SetAllocator(allocator)
|
|
sequence.Append([]byte{0x17, 0x00, 0x00, 0x00, 0x00}, track.ExtraData)
|
|
err = publisher.WriteVideo(&sequence)
|
|
case box.MP4_CODEC_H265:
|
|
var sequence rtmp.RTMPVideo
|
|
sequence.SetAllocator(allocator)
|
|
sequence.Append([]byte{0b1001_0000 | rtmp.PacketTypeSequenceStart}, codec.FourCC_H265[:], track.ExtraData)
|
|
err = publisher.WriteVideo(&sequence)
|
|
case box.MP4_CODEC_AAC:
|
|
var sequence rtmp.RTMPAudio
|
|
sequence.SetAllocator(allocator)
|
|
sequence.Append([]byte{0xaf, 0x00}, track.ExtraData)
|
|
err = publisher.WriteAudio(&sequence)
|
|
}
|
|
}
|
|
for track, sample := range demuxer.ReadSample {
|
|
if p.IsStopped() {
|
|
break
|
|
}
|
|
if _, err = demuxer.reader.Seek(sample.Offset, io.SeekStart); err != nil {
|
|
return
|
|
}
|
|
sample.Data = allocator.Malloc(sample.Size)
|
|
if _, err = io.ReadFull(demuxer.reader, sample.Data); err != nil {
|
|
allocator.Free(sample.Data)
|
|
return
|
|
}
|
|
switch track.Cid {
|
|
case box.MP4_CODEC_H264:
|
|
var videoFrame rtmp.RTMPVideo
|
|
videoFrame.SetAllocator(allocator)
|
|
videoFrame.CTS = sample.CTS
|
|
videoFrame.Timestamp = sample.Timestamp * 1000 / track.Timescale
|
|
videoFrame.AppendOne([]byte{util.Conditional[byte](sample.KeyFrame, 0x17, 0x27), 0x01, byte(videoFrame.CTS >> 24), byte(videoFrame.CTS >> 8), byte(videoFrame.CTS)})
|
|
videoFrame.AddRecycleBytes(sample.Data)
|
|
err = publisher.WriteVideo(&videoFrame)
|
|
case box.MP4_CODEC_H265:
|
|
var videoFrame rtmp.RTMPVideo
|
|
videoFrame.SetAllocator(allocator)
|
|
videoFrame.CTS = uint32(sample.CTS)
|
|
videoFrame.Timestamp = sample.Timestamp * 1000 / track.Timescale
|
|
var head []byte
|
|
var b0 byte = 0b1010_0000
|
|
if sample.KeyFrame {
|
|
b0 = 0b1001_0000
|
|
}
|
|
if videoFrame.CTS == 0 {
|
|
head = videoFrame.NextN(5)
|
|
head[0] = b0 | rtmp.PacketTypeCodedFramesX
|
|
} else {
|
|
head = videoFrame.NextN(8)
|
|
head[0] = b0 | rtmp.PacketTypeCodedFrames
|
|
util.PutBE(head[5:8], videoFrame.CTS) // cts
|
|
}
|
|
copy(head[1:], codec.FourCC_H265[:])
|
|
videoFrame.AddRecycleBytes(sample.Data)
|
|
err = publisher.WriteVideo(&videoFrame)
|
|
case box.MP4_CODEC_AAC:
|
|
var audioFrame rtmp.RTMPAudio
|
|
audioFrame.SetAllocator(allocator)
|
|
audioFrame.Timestamp = sample.Timestamp * 1000 / track.Timescale
|
|
audioFrame.AppendOne([]byte{0xaf, 0x01})
|
|
audioFrame.AddRecycleBytes(sample.Data)
|
|
err = publisher.WriteAudio(&audioFrame)
|
|
}
|
|
}
|
|
return
|
|
}
|