feat: Allow exporting MiniSEED clips with STEIM2 compression

Author: bclswl0827

CHANGELOG.md

@@ -2,6 +2,25 @@
 
 Starting from v2.2.5, all notable changes to this project will be documented in this file.
 
+## v4.0.2
+
+### Release Notes
+
+This patch release focuses on reliability improvements and critical bug fixes. It introduces STEIM2 compression support for MiniSEED export and resolves issues affecting helicorder rendering and token expiration.
+
+🧠 **What’s New**
+
+Enhancements in this version contribute to better performance, interoperability, and system integrity, especially when exporting seismic clips and managing real-time data views.
+
+### New Features
+
+- Added support for exporting **MiniSEED clips with STEIM2 compression**, fixing Waves' compatibility issue on INT32 encoding.
+
+### Bug Fixes
+
+- Fixed a **division by zero** error in the helicorder generator under certain data conditions.
+- Corrected an issue where **temporary tokens never expired**, improving session security and compliance.
+
 ## v4.0.1
 
 ### Release Notes
@@ -12,39 +31,32 @@ A minor but essential update focusing on stability, performance, and new regiona
 
 This version includes critical bug fixes, UI improvements, and a new data integration, further enhancing the reliability and usability of the AnyShake Observer platform.
 
-### Bug Fixes
+### New Features
 
-* Fixed a link error with **Go 1.24.3** that could cause build failures on Darwin.
-* Prevented unnecessary **message bus re-creation**, improving runtime stability.
-* Corrected **translation keys** for more accurate localization.
+- Added **Thai Meteorological Department** as a new data agency, expanding regional data support.
+- Enhanced UI to **highlight unsaved changes**, reducing the risk of accidental data loss.
+- Optimized **error handling** for more robust system behavior.
 
-### New Features
+### Bug Fixes
 
-* Added **Thai Meteorological Department** as a new data agency, expanding regional data support.
-* Enhanced UI to **highlight unsaved changes**, reducing the risk of accidental data loss.
-* Optimized **error handling** for more robust system behavior.
+- Fixed a link error with **Go 1.24.3** that could cause build failures on Darwin.
+- Prevented unnecessary **message bus re-creation**, improving runtime stability.
+- Corrected **translation keys** for more accurate localization.
 
 ## v4.0.0
 
 ### Release Notes
 
 We are proud to announce **AnyShake Observer v4.0.0**, a major release that marks a transformative step forward in our seismic monitoring software. This update is **incompatible with all previous versions** due to significant architectural changes and feature enhancements.
 
-🚀 **Now crowdfunding on CrowdSupply**  
+🚀 **Now crowdfunding on CrowdSupply**
 
 Alongside this release, we are launching the **AnyShake Explorer**, a fully open-source, low-cost, and reliable seismic data acquisition device. Designed for researchers, hobbyists, and professionals alike, the Explorer integrates seamlessly with AnyShake Observer and sets a new standard for affordable and powerful seismology tools.
 
-🧠 **What’s New**  
+🧠 **What’s New**
 
 This version represents a leap forward in terms of **usability, security, reliability, and functionality** — setting a new benchmark in open-source seismic software.
 
-### Bug Fixes
-
-- Resolved high CPU usage issue caused by "empty-run" behavior after Explorer device disconnection.
-- Fixed significant time offset when AnyShake Observer starts before Explorer under NTP mode.
-- Resolved decoder thread crash when receiving delayed data via serial-to-TCP device.
-- Fixed numerous potential data race issues for improved multithreaded stability.
-
 ### New Features
 
 - Simplified deployment with just **40 lines of configuration** to get started.
@@ -65,6 +77,13 @@ This version represents a leap forward in terms of **usability, security, reliab
 - Improved **SeedLink protocol** stability.
 - Added **multi-language support** with translations in 9 languages.
 
+### Bug Fixes
+
+- Resolved high CPU usage issue caused by "empty-run" behavior after Explorer device disconnection.
+- Fixed significant time offset when AnyShake Observer starts before Explorer under NTP mode.
+- Resolved decoder thread crash when receiving delayed data via serial-to-TCP device.
+- Fixed numerous potential data race issues for improved multithreaded stability.
+
 ---
 
 ## v3.6.1
@@ -631,4 +650,4 @@ This version represents a leap forward in terms of **usability, security, reliab
 - Use templates to standardize ISSUEs and Pull Requests
 - Update repository frontend logos
 
----
+---

VERSION

@@ -1 +1 @@
-v4.0.1
+v4.0.2

internal/server/router/export/mseed.go

@@ -13,14 +13,17 @@ import (
 )
 
 type seismicDataEncoderMseedImpl struct {
+	name       string
+	encodeType int
+
 	actionHandler      *action.Handler
 	stationCodeConfig  config.StationStationCodeConfigConstraintImpl
 	locationCodeConfig config.StationLocationCodeConfigConstraintImpl
 	networkCodeConfig  config.StationNetworkCodeConfigConstraintImpl
 }
 
 func (e *seismicDataEncoderMseedImpl) GetName() string {
-	return "MiniSEED"
+	return e.name
 }
 
 func (e *seismicDataEncoderMseedImpl) Encode(records []model.SeisRecord, channelCode string) ([]byte, error) {
@@ -42,7 +45,7 @@ func (e *seismicDataEncoderMseedImpl) Encode(records []model.SeisRecord, channel
 	networkCodeStr := networkCode.(string)
 
 	var miniseed mseedio.MiniSeedData
-	err = miniseed.Init(mseedio.INT32, mseedio.MSBFIRST)
+	err = miniseed.Init(e.encodeType, mseedio.MSBFIRST)
 	if err != nil {
 		return nil, err
 	}

internal/server/router/export/setup.go

@@ -9,6 +9,7 @@ import (
 	"github.com/anyshake/observer/internal/dao/action"
 	"github.com/anyshake/observer/internal/hardware"
 	"github.com/anyshake/observer/internal/server/response"
+	"github.com/bclswl0827/mseedio"
 	"github.com/gin-gonic/gin"
 	"github.com/samber/lo"
 )
@@ -26,7 +27,17 @@ func Setup(routerGroup *gin.RouterGroup, actionHandler *action.Handler, hardware
 			locationCodeConfig: locationCodeConfig,
 			networkCodeConfig:  networkCodeConfig,
 		},
-		"mseed": &seismicDataEncoderMseedImpl{
+		"mseed_int32": &seismicDataEncoderMseedImpl{
+			encodeType:         mseedio.INT32,
+			name:               "MiniSEED (INT32)",
+			actionHandler:      actionHandler,
+			stationCodeConfig:  stationCodeConfig,
+			locationCodeConfig: locationCodeConfig,
+			networkCodeConfig:  networkCodeConfig,
+		},
+		"mseed_steim2": &seismicDataEncoderMseedImpl{
+			encodeType:         mseedio.STEIM2,
+			name:               "MiniSEED (STEIM2)",
 			actionHandler:      actionHandler,
 			stationCodeConfig:  stationCodeConfig,
 			locationCodeConfig: locationCodeConfig,

internal/server/router/export/wav.go

@@ -69,7 +69,7 @@ func (e *seismicDataEncoderWavImpl) Encode(records []model.SeisRecord, channelCo
 	}
 
 	originalSampleRate := int(float64(len(audioData)) / (timeDiff / 30.0))
-	filterKernel := e.getLowPassFilter(originalSampleRate, 25, 51)
+	filterKernel := e.getLowPassFilter(originalSampleRate, 25, 311)
 	audioData = e.applyFilter(audioData, filterKernel)
 
 	interpolatedData := e.linearInterpolate(audioData, originalSampleRate, e.outputSampleRate)