aux

extract/aux.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"math"
 	"os"
-	"path/filepath"
 	"strings"
 	"time"
 
@@ -116,9 +115,24 @@ func (e *Extractor) SeprateAuxAndImgData(dataFile string, segmentIndex int) erro
 
 	log.Info("seprate aux and img data from", dataFile)
 
-	name := filepath.Base(dataFile)
-	name = strings.TrimRight(name, filepath.Ext(name))
+	dataLen := len(data)
+	log.Info("length of original data: ", dataLen)
+	var firstFrmHead *AuxFrameHead
+	data, firstFrmHead = e.trimImgRawData(data)
+	dataLen = len(data)
+	log.Info("after trim,length of data: ", dataLen)
+	e.quanlityAnalysis(data)
+
 	outputDir := e.params.OutputPath
+	name := strings.Join([]string{
+		e.params.Satellite,
+		"PMS",
+		time.Unix(int64(firstFrmHead.TimeSec)+int64(ReferenceTime2000),
+			int64(firstFrmHead.TimeSecFrac)*1000).
+			Format("20060102_150405"),
+		e.params.DataId,
+		fmt.Sprintf("%03d", firstFrmHead.FileNo),
+	}, "_")
 
 	lw := newL0Writer(outputDir, name)
 	defer lw.Close()
@@ -126,13 +140,6 @@ func (e *Extractor) SeprateAuxAndImgData(dataFile string, segmentIndex int) erro
 	var panEnviHdr, mssEnviHdr EnviHdr
 
 	var afh AuxFrameHead
-	dataLen := len(data)
-	log.Info("length of original data: ", dataLen)
-	data = e.trimImgRawData(data)
-	dataLen = len(data)
-	log.Info("length of trimmed data: ", dataLen)
-
-	e.quanlityAnalysis(data)
 
 	msdata := make([][]byte, 4)
 
@@ -281,9 +288,9 @@ func (e *Extractor) quanlityAnalysis(data []byte) {
 }
 
 // 裁剪图像数据，只保留有效数据
-func (e *Extractor) trimImgRawData(data []byte) []byte {
+func (e *Extractor) trimImgRawData(data []byte) ([]byte, *AuxFrameHead) {
 	var start, end int
-
+	afh := &AuxFrameHead{}
 	// 将中心辅助数据时间合理的帧作为第一帧
 	var startAuxLine bool
 	for i := 0; i < len(data); {
@@ -300,7 +307,6 @@ func (e *Extractor) trimImgRawData(data []byte) []byte {
 			continue
 		}
 
-		afh := &AuxFrameHead{}
 		afh.Decode(data[i : i+24])
 
 		if !afh.IsValidFrmHead {
@@ -322,5 +328,5 @@ func (e *Extractor) trimImgRawData(data []byte) []byte {
 		}
 	}
 
-	return data[start:end]
+	return data[start:end], afh
 }