Added creating M3U8 playlist and consistent checking of each new file in storage.
This commit is contained in:
parent
a4678342ee
commit
61971d0acb
@ -1,276 +1,26 @@
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package main
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import (
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"bytes"
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"encoding/binary"
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"fmt"
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"io"
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"log"
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"os"
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"reader/internal/processor"
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"github.com/bluenviron/gortsplib/v4/pkg/format"
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"git.insit.tech/sas/rtsp_proxy/core/log"
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"git.insit.tech/sas/rtsp_proxy/proto/common"
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"reader/internal/unpacker"
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)
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//port := 8080
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//
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//http.HandleFunc("GET /download", handlers.Download) // example request: {"date": "07-03-2025", "start_time": "16-43", "end_time": "16-44"}
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//http.HandleFunc("GET /hls/", handlers.HLS)
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//
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//log.Println("Starting server on:")
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//log.Printf("Serving on HTTP port: %d\n", port)
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//
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//log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", port), nil))
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// Интерпретируем типы пакетов:
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const (
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PacketTypeH264 = 1
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PacketTypeLPCM = 2
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)
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var (
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h264 string
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g711 string
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)
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// InterleavedPacket описывает пакет, который может быть либо H264, либо G711.
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type InterleavedPacket struct {
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Type byte
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Pts int64
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H264AUs [][]byte // для H264
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LPCMSamples []byte // для G711
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}
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// Segment содержит строки Start и Duration, а также набор пакетов.
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type Segment struct {
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Start string
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Duration string
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Packets []InterleavedPacket
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}
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// readString читает строку: сначала длину (int32), затем данные строки.
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func readString(r io.Reader) (string, error) {
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var length int32
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if err := binary.Read(r, binary.LittleEndian, &length); err != nil {
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return "", err
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}
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buf := make([]byte, length)
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if _, err := io.ReadFull(r, buf); err != nil {
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return "", err
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}
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return string(buf), nil
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}
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// readHeaderSegment читает сегмент, записанный функцией WriteHeader (с Start и Duration).
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func readHeaderSegment(r io.Reader) (Segment, error) {
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var seg Segment
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start, err := readString(r)
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if err != nil {
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return seg, err
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}
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seg.Start = start
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duration, err := readString(r)
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if err != nil {
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return seg, err
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}
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seg.Duration = duration
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return seg, nil
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}
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// readPacket читает один interleaved пакет.
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func readPacket(r io.Reader) (InterleavedPacket, error) {
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var pkt InterleavedPacket
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// Читаем тип пакета (1 байт).
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typeByte := make([]byte, 1)
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if _, err := io.ReadFull(r, typeByte); err != nil {
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return pkt, err
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}
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pkt.Type = typeByte[0]
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// Читаем pts (int64).
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if err := binary.Read(r, binary.LittleEndian, &pkt.Pts); err != nil {
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return pkt, err
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}
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// В зависимости от типа, читаем данные.
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if pkt.Type == PacketTypeH264 {
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var numAUs int32
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if err := binary.Read(r, binary.LittleEndian, &numAUs); err != nil {
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return pkt, err
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}
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var auList [][]byte
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for i := 0; i < int(numAUs); i++ {
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var auLen int32
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if err := binary.Read(r, binary.LittleEndian, &auLen); err != nil {
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return pkt, err
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}
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auData := make([]byte, auLen)
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if _, err := io.ReadFull(r, auData); err != nil {
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return pkt, err
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}
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auList = append(auList, auData)
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}
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pkt.H264AUs = auList
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} else if pkt.Type == PacketTypeLPCM {
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var auLen int32
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if err := binary.Read(r, binary.LittleEndian, &auLen); err != nil {
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return pkt, err
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}
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auData := make([]byte, auLen)
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if _, err := io.ReadFull(r, auData); err != nil {
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return pkt, err
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}
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pkt.LPCMSamples = auData
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} else {
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return pkt, fmt.Errorf("неизвестный тип пакета: %d", pkt.Type)
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}
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return pkt, nil
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}
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// readPacketSegment читает сегмент, записанный функцией WriteInterleavedPacket:
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// сначала число пакетов (int32), затем каждый пакет.
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func readPacketSegment(r io.Reader) ([]InterleavedPacket, error) {
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var numPackets int32
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if err := binary.Read(r, binary.LittleEndian, &numPackets); err != nil {
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return nil, err
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}
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var packets []InterleavedPacket
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for i := 0; i < int(numPackets); i++ {
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pkt, err := readPacket(r)
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if err != nil {
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return nil, err
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}
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packets = append(packets, pkt)
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}
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return packets, nil
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}
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func main() {
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filename := "/home/psa/GoRepository/data/camera44-center-skver_temnika/12-10-00_21-03-2025.insit"
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//port := 8080
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//
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//http.HandleFunc("GET /download", handlers.Download) // example request: {"date": "07-03-2025", "start_time": "16-43", "end_time": "16-44"}
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//http.HandleFunc("GET /hls/", handlers.HLS)
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//
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//log.Println("Starting server on:")
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//log.Printf("Serving on HTTP port: %d\n", port)
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//
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//log.Fatal(http.ListenAndServe(fmt.Sprintf(":%d", port), nil))
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segment := Segment{}
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Log := log.MainLogging("/home/psa/GoRepository/" + "/data/" + "camera54-centr-kirova-kalinina")
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// Открываем файл для чтения.
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f, err := os.Open(filename)
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if err != nil {
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fmt.Println("Ошибка открытия файла:", err)
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return
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}
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defer f.Close()
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// Читаем streamID (первые 4 байта — длина, затем сами байты).
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var streamIDLen int32
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if err := binary.Read(f, binary.LittleEndian, &streamIDLen); err != nil {
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fmt.Println("Ошибка чтения streamID длины:", err)
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return
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}
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streamIDBytes := make([]byte, streamIDLen)
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if _, err := io.ReadFull(f, streamIDBytes); err != nil {
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fmt.Println("Ошибка чтения streamID:", err)
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return
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}
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streamID := string(streamIDBytes)
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fmt.Println("Stream ID:", streamID)
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// Теперь в файле идут сегменты. Первый сегмент — заголовочный, далее — сегменты с пакетами.
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// Читаем первый сегмент как заголовочный.
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var segLen int32
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if err := binary.Read(f, binary.LittleEndian, &segLen); err != nil {
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fmt.Println("Ошибка чтения длины заголовочного сегмента:", err)
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return
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}
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segData := make([]byte, segLen)
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if _, err := io.ReadFull(f, segData); err != nil {
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fmt.Println("Ошибка чтения заголовочного сегмента:", err)
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return
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}
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headerReader := bytes.NewReader(segData)
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headerSeg, err := readHeaderSegment(headerReader)
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if err != nil {
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fmt.Println("Ошибка чтения заголовочного сегмента:", err)
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return
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}
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fmt.Println("Заголовочный сегмент:")
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fmt.Println("\tStart:", headerSeg.Start)
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fmt.Println("\tDuration:", headerSeg.Duration)
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segment = headerSeg
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// Setup MPEG-TS muxer.
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var h264Format format.H264
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var aacFormat *format.MPEG4Audio
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h264Format.PayloadTyp = 96
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h264Format.PacketizationMode = 1
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currentMpegtsMuxer := processor.MpegtsMuxer{
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FileName: segment.Start + "_videoFragment" + "_0" + ".ts",
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H264Format: &h264Format,
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Mpeg4AudioFormat: aacFormat,
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}
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err = currentMpegtsMuxer.Initialize()
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if err != nil {
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fmt.Printf("[%v-%v]: init muxer error: %w\n", h264, g711, err)
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}
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// Читаем последующие сегменты, содержащие пакеты.
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segmentIndex := 1
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for {
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var segLen int32
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err := binary.Read(f, binary.LittleEndian, &segLen)
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if err != nil {
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if err == io.EOF {
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break // достигнут конец файла
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}
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fmt.Println("Ошибка чтения длины сегмента:", err)
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return
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}
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segData = make([]byte, segLen)
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if _, err := io.ReadFull(f, segData); err != nil {
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fmt.Println("Ошибка чтения данных сегмента:", err)
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return
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}
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packetReader := bytes.NewReader(segData)
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packets, err := readPacketSegment(packetReader)
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if err != nil {
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fmt.Println("Ошибка чтения сегмента пакетов:", err)
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return
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}
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segment.Packets = append(segment.Packets, packets...)
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fmt.Printf("Сегмент пакетов #%d:\n", segmentIndex)
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for _, pkt := range packets {
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switch pkt.Type {
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case PacketTypeH264:
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h264 = "h264"
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err = currentMpegtsMuxer.WriteH264(pkt.Pts, pkt.H264AUs)
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if err != nil {
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log.Printf("write h264 packet error: %v\n", err)
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}
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case PacketTypeLPCM:
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g711 = "g711"
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// Convert G711 to AAC.
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au, err := processor.ConvertLPCMToAAC(pkt.LPCMSamples)
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if err != nil {
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log.Printf("converting to AAC frame error: %v\n", err)
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}
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// Encode the access unit into MPEG-TS.
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err = currentMpegtsMuxer.WriteAAC([][]byte{au}, pkt.Pts)
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if err != nil {
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return
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}
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}
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}
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segmentIndex++
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}
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currentMpegtsMuxer.Close()
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unpacker.CreateFlow("/home/psa/GoRepository",
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"camera54-centr-kirova-kalinina",
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&common.FileName{Duration: 60},
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[]string{"1920-1080"}, Log)
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}
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@ -3,21 +3,27 @@ module reader
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go 1.24.1
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require (
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git.insit.tech/psa/rtsp_reader-writer/writer v0.0.0-20250321123217-883053a85cbc
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git.insit.tech/psa/rtsp_reader-writer/writer v0.0.0-20250325111946-a4678342ee71
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git.insit.tech/sas/rtsp_proxy v0.0.0-20250326040356-446f7f0578d9
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github.com/bluenviron/gortsplib/v4 v4.12.3
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github.com/bluenviron/mediacommon v1.14.0
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github.com/bluenviron/mediacommon/v2 v2.0.0
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github.com/gen2brain/aac-go v0.0.0-20230119102159-ef1e76509d21
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go.uber.org/zap v1.27.0
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)
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require (
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github.com/asticode/go-astikit v0.52.0 // indirect
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github.com/asticode/go-astits v1.13.0 // indirect
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github.com/bluenviron/mediacommon/v2 v2.0.0 // indirect
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github.com/gen2brain/aac-go v0.0.0-20230119102159-ef1e76509d21 // indirect
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github.com/google/uuid v1.6.0 // indirect
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github.com/grafov/m3u8 v0.12.1 // indirect
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github.com/pion/randutil v0.1.0 // indirect
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github.com/pion/rtcp v1.2.15 // indirect
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github.com/pion/rtp v1.8.13 // indirect
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github.com/pion/sdp/v3 v3.0.11 // indirect
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github.com/zencoder/go-dash v0.0.0-20201006100653-2f93b14912b2 // indirect
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go.uber.org/multierr v1.11.0 // indirect
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golang.org/x/net v0.37.0 // indirect
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golang.org/x/sys v0.31.0 // indirect
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gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
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)
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@ -1,5 +1,7 @@
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git.insit.tech/psa/rtsp_reader-writer/writer v0.0.0-20250321123217-883053a85cbc h1:dhJVA/B+q3CWBhI1ZBPhClAbY875j7+Ru6XIWimxjW8=
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git.insit.tech/psa/rtsp_reader-writer/writer v0.0.0-20250321123217-883053a85cbc/go.mod h1:hY3OlYFPtsZ/fX/BVUPkjIHNPbfIpzgujKn9TKftI+E=
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git.insit.tech/psa/rtsp_reader-writer/writer v0.0.0-20250325111946-a4678342ee71 h1:ObdTAquutHq2Abh9J02S8wBkeHuOYS+6fd8chf2yQC4=
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git.insit.tech/psa/rtsp_reader-writer/writer v0.0.0-20250325111946-a4678342ee71/go.mod h1:TjxUTANLCPQpjNFVlGZWlGn0ICGV9oQP7aed0xexFkw=
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git.insit.tech/sas/rtsp_proxy v0.0.0-20250326040356-446f7f0578d9 h1:8aOLn23rkkXR/mpkOtbaNrCWsiBs0Pl+/ds3CzUuHZo=
|
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git.insit.tech/sas/rtsp_proxy v0.0.0-20250326040356-446f7f0578d9/go.mod h1:/AHWd1Otr+ikOLWzpXtoozzifEx9ZKou+R6DgwaEzr0=
|
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github.com/asticode/go-astikit v0.30.0/go.mod h1:h4ly7idim1tNhaVkdVBeXQZEE3L0xblP7fCWbgwipF0=
|
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github.com/asticode/go-astikit v0.52.0 h1:kTl2XjgiVQhUl1H7kim7NhmTtCMwVBbPrXKqhQhbk8Y=
|
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github.com/asticode/go-astikit v0.52.0/go.mod h1:fV43j20UZYfXzP9oBn33udkvCvDvCDhzjVqoLFuuYZE=
|
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@ -12,12 +14,14 @@ github.com/bluenviron/mediacommon v1.14.0/go.mod h1:z5LP9Tm1ZNfQV5Co54PyOzaIhGMu
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github.com/bluenviron/mediacommon/v2 v2.0.0 h1:JinZ9v2x6QeAOzA0cDA6aFe8vQuCrU8OyWEhG2iNzwY=
|
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github.com/bluenviron/mediacommon/v2 v2.0.0/go.mod h1:iHEz1SFIet6zBwAQoh1a92vTQ3dV3LpVFbom6/SLz3k=
|
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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
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github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
|
||||
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/gen2brain/aac-go v0.0.0-20230119102159-ef1e76509d21 h1:yfrARW/aVlqKORCdKrYdU0PZUKPqQvYEUQBKfVlNa9Q=
|
||||
github.com/gen2brain/aac-go v0.0.0-20230119102159-ef1e76509d21/go.mod h1:HZqGD/LXHB1VCGUGNzuyxSsD12f3KjbJbvImAmoK/mM=
|
||||
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
|
||||
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
||||
github.com/grafov/m3u8 v0.12.1 h1:DuP1uA1kvRRmGNAZ0m+ObLv1dvrfNO0TPx0c/enNk0s=
|
||||
github.com/grafov/m3u8 v0.12.1/go.mod h1:nqzOkfBiZJENr52zTVd/Dcl03yzphIMbJqkXGu+u080=
|
||||
github.com/pion/randutil v0.1.0 h1:CFG1UdESneORglEsnimhUjf33Rwjubwj6xfiOXBa3mA=
|
||||
github.com/pion/randutil v0.1.0/go.mod h1:XcJrSMMbbMRhASFVOlj/5hQial/Y8oH/HVo7TBZq+j8=
|
||||
github.com/pion/rtcp v1.2.15 h1:LZQi2JbdipLOj4eBjK4wlVoQWfrZbh3Q6eHtWtJBZBo=
|
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@ -27,8 +31,9 @@ github.com/pion/rtp v1.8.13/go.mod h1:8uMBJj32Pa1wwx8Fuv/AsFhn8jsgw+3rUC2PfoBZ8p
|
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github.com/pion/sdp/v3 v3.0.11 h1:VhgVSopdsBKwhCFoyyPmT1fKMeV9nLMrEKxNOdy3IVI=
|
||||
github.com/pion/sdp/v3 v3.0.11/go.mod h1:88GMahN5xnScv1hIMTqLdu/cOcUkj6a9ytbncwMCq2E=
|
||||
github.com/pkg/profile v1.4.0/go.mod h1:NWz/XGvpEW1FyYQ7fCx4dqYBLlfTcE+A9FLAkNKqjFE=
|
||||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
||||
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
||||
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
|
||||
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
|
||||
github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
|
||||
@ -39,11 +44,21 @@ github.com/youpy/go-wav v0.3.2 h1:NLM8L/7yZ0Bntadw/0h95OyUsen+DQIVf9gay+SUsMU=
|
||||
github.com/youpy/go-wav v0.3.2/go.mod h1:0FCieAXAeSdcxFfwLpRuEo0PFmAoc+8NU34h7TUvk50=
|
||||
github.com/zaf/g711 v1.4.0 h1:XZYkjjiAg9QTBnHqEg37m2I9q3IIDv5JRYXs2N8ma7c=
|
||||
github.com/zaf/g711 v1.4.0/go.mod h1:eCDXt3dSp/kYYAoooba7ukD/Q75jvAaS4WOMr0l1Roo=
|
||||
github.com/zencoder/go-dash v0.0.0-20201006100653-2f93b14912b2 h1:0iAY2pL6yYhNYpdc1DbFq0p7ocyu5MlgKmkealhz3nk=
|
||||
github.com/zencoder/go-dash v0.0.0-20201006100653-2f93b14912b2/go.mod h1:c8Gxxfmh0jmZ6G+ISlpa315WBVkzd8mEhu6gN9mn5Qg=
|
||||
go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
|
||||
go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
|
||||
go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
|
||||
go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
|
||||
go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
|
||||
go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
|
||||
golang.org/x/net v0.37.0 h1:1zLorHbz+LYj7MQlSf1+2tPIIgibq2eL5xkrGk6f+2c=
|
||||
golang.org/x/net v0.37.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
|
||||
golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
|
||||
golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
gopkg.in/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=
|
||||
gopkg.in/natefinch/lumberjack.v2 v2.2.1/go.mod h1:YD8tP3GAjkrDg1eZH7EGmyESg/lsYskCTPBJVb9jqSc=
|
||||
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
|
||||
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
|
||||
@ -1 +0,0 @@
|
||||
package processor
|
||||
@ -3,6 +3,7 @@ package processor
|
||||
import (
|
||||
"bufio"
|
||||
"github.com/bluenviron/mediacommon/pkg/codecs/mpeg4audio"
|
||||
"log"
|
||||
"os"
|
||||
"sync"
|
||||
|
||||
@ -115,6 +116,8 @@ func (e *MpegtsMuxer) WriteH264(pts int64, au [][]byte) error {
|
||||
e.dtsExtractor = h264.NewDTSExtractor2()
|
||||
}
|
||||
|
||||
log.Printf("pts: %d", pts)
|
||||
|
||||
dts, err := e.dtsExtractor.Extract(au, pts)
|
||||
if err != nil {
|
||||
return err
|
||||
|
||||
158
reader/internal/unpacker/proc.go
Normal file
158
reader/internal/unpacker/proc.go
Normal file
@ -0,0 +1,158 @@
|
||||
package unpacker
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/binary"
|
||||
"fmt"
|
||||
"git.insit.tech/psa/rtsp_reader-writer/writer/pkg/storage"
|
||||
"git.insit.tech/sas/rtsp_proxy/core/gen"
|
||||
"git.insit.tech/sas/rtsp_proxy/proto/common"
|
||||
"github.com/bluenviron/gortsplib/v4/pkg/format"
|
||||
"go.uber.org/zap"
|
||||
"io"
|
||||
"log"
|
||||
"os"
|
||||
"reader/internal/processor"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
// CreateFlow generate TS files and M3U8 playlists.
|
||||
func CreateFlow(dir string, cutURI string, fn *common.FileName, resolutions []string, Log *zap.Logger) {
|
||||
fmt.Println("Reader started")
|
||||
|
||||
// Establish starting period.
|
||||
per := 60
|
||||
period := time.Duration(per)
|
||||
|
||||
// Create M3U8 playlist.
|
||||
go gen.MediaPlaylistGenerator(dir+"/data", cutURI, fn.Duration, resolutions, Log)
|
||||
|
||||
for {
|
||||
time.Sleep(period * time.Second)
|
||||
for _, resolution := range resolutions {
|
||||
filenames := gen.StringDirEntryList(dir+"/data/"+cutURI+"/"+resolution, "insit", Log)
|
||||
|
||||
for i := len(filenames) - 2; i < len(filenames)-1; i++ {
|
||||
|
||||
segment := storage.Segment{}
|
||||
|
||||
// Open file for reading.
|
||||
f, err := os.Open(dir + "/data/" + cutURI + "/" + resolution + "/" + filenames[i])
|
||||
if err != nil {
|
||||
fmt.Println("opening file error: ", err)
|
||||
return
|
||||
}
|
||||
defer f.Close()
|
||||
|
||||
// Read StreamID.
|
||||
var streamIDLen int32
|
||||
if err := binary.Read(f, binary.LittleEndian, &streamIDLen); err != nil {
|
||||
fmt.Println("reading StreamID length error: ", err)
|
||||
return
|
||||
}
|
||||
streamIDBytes := make([]byte, streamIDLen)
|
||||
if _, err := io.ReadFull(f, streamIDBytes); err != nil {
|
||||
fmt.Println("reading StreamID error: ", err)
|
||||
return
|
||||
}
|
||||
streamID := string(streamIDBytes)
|
||||
fmt.Println("Stream ID:", streamID)
|
||||
|
||||
// Read header of the file.
|
||||
var segLen int32
|
||||
if err := binary.Read(f, binary.LittleEndian, &segLen); err != nil {
|
||||
fmt.Println("reading header length error: ", err)
|
||||
return
|
||||
}
|
||||
segData := make([]byte, segLen)
|
||||
if _, err := io.ReadFull(f, segData); err != nil {
|
||||
fmt.Println("reading header error: ", err)
|
||||
return
|
||||
}
|
||||
headerReader := bytes.NewReader(segData)
|
||||
headerSeg, err := readHeaderSegment(headerReader)
|
||||
if err != nil {
|
||||
fmt.Println("func readHeaderSegment error: ", err)
|
||||
return
|
||||
}
|
||||
|
||||
// Parse duration of a segment.
|
||||
per, err = strconv.Atoi(headerSeg.Duration)
|
||||
if err != nil {
|
||||
fmt.Println("parsing duration error: ", err)
|
||||
}
|
||||
|
||||
// Setup MPEG-TS muxer.
|
||||
var h264Format format.H264
|
||||
var aacFormat format.MPEG4Audio
|
||||
|
||||
filename, _ := strings.CutSuffix(filenames[i], ".insit")
|
||||
|
||||
currentMpegtsMuxer := processor.MpegtsMuxer{
|
||||
FileName: dir + "/data/" + cutURI + "/" + resolution + "/" + filename + ".ts",
|
||||
H264Format: &h264Format,
|
||||
Mpeg4AudioFormat: &aacFormat,
|
||||
}
|
||||
|
||||
err = currentMpegtsMuxer.Initialize()
|
||||
if err != nil {
|
||||
fmt.Printf("init muxer error: %w\n", err)
|
||||
}
|
||||
|
||||
// Read segments.
|
||||
for {
|
||||
// Read segments length.
|
||||
var segLen int32
|
||||
err := binary.Read(f, binary.LittleEndian, &segLen)
|
||||
if err != nil {
|
||||
if err == io.EOF {
|
||||
break
|
||||
}
|
||||
fmt.Println("read segments length error: ", err)
|
||||
return
|
||||
}
|
||||
// Read segments data.
|
||||
segData = make([]byte, segLen)
|
||||
if _, err := io.ReadFull(f, segData); err != nil {
|
||||
fmt.Println("read segments error: ", err)
|
||||
return
|
||||
}
|
||||
packetReader := bytes.NewReader(segData)
|
||||
packets, err := readPacketSegment(packetReader)
|
||||
if err != nil {
|
||||
fmt.Println("func readPacketSegment error: ", err)
|
||||
return
|
||||
}
|
||||
|
||||
segment.Packets = append(segment.Packets, packets...)
|
||||
|
||||
for _, pkt := range packets {
|
||||
switch pkt.Type {
|
||||
case storage.PacketTypeH264:
|
||||
// Encode the access unit into MPEG-TS.
|
||||
err = currentMpegtsMuxer.WriteH264(pkt.Pts, pkt.H264AUs)
|
||||
if err != nil {
|
||||
log.Printf("write H264 packet error: %v\n", err)
|
||||
}
|
||||
case storage.PacketTypeLPCM:
|
||||
// Convert G711 to AAC.
|
||||
au, err := processor.ConvertLPCMToAAC(pkt.LPCMSamples)
|
||||
if err != nil {
|
||||
log.Printf("converting to AAC frame error: %v\n", err)
|
||||
}
|
||||
|
||||
// Encode the access unit into MPEG-TS.
|
||||
err = currentMpegtsMuxer.WriteAAC([][]byte{au}, pkt.Pts)
|
||||
if err != nil {
|
||||
log.Printf("write G711 packet error: %v\n", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
currentMpegtsMuxer.Close()
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
109
reader/internal/unpacker/unpack.go
Normal file
109
reader/internal/unpacker/unpack.go
Normal file
@ -0,0 +1,109 @@
|
||||
package unpacker
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"fmt"
|
||||
"git.insit.tech/psa/rtsp_reader-writer/writer/pkg/storage"
|
||||
"io"
|
||||
)
|
||||
|
||||
// readString reads string length and then reads string data.
|
||||
func readString(r io.Reader) (string, error) {
|
||||
var length int32
|
||||
if err := binary.Read(r, binary.LittleEndian, &length); err != nil {
|
||||
return "", err
|
||||
}
|
||||
buf := make([]byte, length)
|
||||
if _, err := io.ReadFull(r, buf); err != nil {
|
||||
return "", err
|
||||
}
|
||||
return string(buf), nil
|
||||
}
|
||||
|
||||
// readHeaderSegment reads header of the segment.
|
||||
func readHeaderSegment(r io.Reader) (storage.Segment, error) {
|
||||
var seg storage.Segment
|
||||
date, err := readString(r)
|
||||
if err != nil {
|
||||
return seg, err
|
||||
}
|
||||
seg.Date = date
|
||||
|
||||
duration, err := readString(r)
|
||||
if err != nil {
|
||||
return seg, err
|
||||
}
|
||||
seg.Duration = duration
|
||||
|
||||
return seg, nil
|
||||
}
|
||||
|
||||
// readPacket reads one interleaved packet.
|
||||
func readPacket(r io.Reader) (storage.InterleavedPacket, error) {
|
||||
var pkt storage.InterleavedPacket
|
||||
|
||||
// Read type of the packet.
|
||||
typeByte := make([]byte, 1)
|
||||
if _, err := io.ReadFull(r, typeByte); err != nil {
|
||||
return pkt, err
|
||||
}
|
||||
pkt.Type = typeByte[0]
|
||||
|
||||
// Read PTS (int64).
|
||||
if err := binary.Read(r, binary.LittleEndian, &pkt.Pts); err != nil {
|
||||
return pkt, err
|
||||
}
|
||||
|
||||
// Read data of the segment.
|
||||
if pkt.Type == storage.PacketTypeH264 {
|
||||
var numAUs int32
|
||||
if err := binary.Read(r, binary.LittleEndian, &numAUs); err != nil {
|
||||
return pkt, err
|
||||
}
|
||||
var auList [][]byte
|
||||
for i := 0; i < int(numAUs); i++ {
|
||||
var auLen int32
|
||||
if err := binary.Read(r, binary.LittleEndian, &auLen); err != nil {
|
||||
return pkt, err
|
||||
}
|
||||
auData := make([]byte, auLen)
|
||||
if _, err := io.ReadFull(r, auData); err != nil {
|
||||
return pkt, err
|
||||
}
|
||||
auList = append(auList, auData)
|
||||
}
|
||||
pkt.H264AUs = auList
|
||||
} else if pkt.Type == storage.PacketTypeLPCM {
|
||||
var auLen int32
|
||||
if err := binary.Read(r, binary.LittleEndian, &auLen); err != nil {
|
||||
return pkt, err
|
||||
}
|
||||
auData := make([]byte, auLen)
|
||||
if _, err := io.ReadFull(r, auData); err != nil {
|
||||
return pkt, err
|
||||
}
|
||||
pkt.LPCMSamples = auData
|
||||
} else {
|
||||
return pkt, fmt.Errorf("unknown type of the packet: %d", pkt.Type)
|
||||
}
|
||||
|
||||
return pkt, nil
|
||||
}
|
||||
|
||||
// readPacketSegment reads segment packets.
|
||||
func readPacketSegment(r io.Reader) ([]storage.InterleavedPacket, error) {
|
||||
var numPackets int32
|
||||
if err := binary.Read(r, binary.LittleEndian, &numPackets); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
var packets []storage.InterleavedPacket
|
||||
for i := 0; i < int(numPackets); i++ {
|
||||
pkt, err := readPacket(r)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
packets = append(packets, pkt)
|
||||
}
|
||||
return packets, nil
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user