unify voice waveform format: base64 wf={100chars};dur={ms}; for both desktop and Android

- inputbar.cpp: CSV waveform → base64 log-scale (same as voice_recorder.c)
- messagelist.cpp: sendVoiceMessage removes displayName|dur_sec| prefix, uses wfStr directly
  setVoiceMessageRoles: decodes new format wf={base64};dur={ms};|... from data field
- messagedelegate.cpp: waveform values now pre-normalized 0..1, no log recalculation needed
- VoiceEncoder: no changes needed (was already compatible)

Both platforms now store identical format in chat_msg_submit.data:
  wf=ABCDef...100chars;dur=NNNN;|file_size|block_size|num_blocks|sigs_hex

tools/chatgui/src/inputbar.cpp

@@ -250,7 +250,8 @@ void InputBar::onPttReleased() {
     m_voiceFilePath = QString("%1/%2_%3_%4.%5").arg(mediaPath, blk.dt, blk.basename, blk.suffix, blk.ext);
 
     const auto& wf = m_recorder->waveformLevels();
-    QString wfStr;
+    QString wfStr = "wf=";
+    static const char b64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
     int N = (int)wf.size();
     for (int i = 0; i < 100; i++) {
         int s = i * N / 100, e = (i + 1) * N / 100;
@@ -260,9 +261,12 @@ void InputBar::onPttReleased() {
         float sum = 0; int cnt = 0;
         for (int j = s; j < e; j++) { sum += wf[j]; cnt++; }
         float v = cnt > 0 ? sum / cnt : 0;
-        if (i > 0) wfStr += ',';
-        wfStr += QString::number(v, 'f', 3);
+        float db = v > 0.00001f ? 20.0f * log10f(v) : -100.0f;
+        int idx = (int)((db + 60.0f) / 60.0f * 64.0f);
+        if (idx < 0) idx = 0; if (idx > 63) idx = 63;
+        wfStr += b64[idx];
     }
+    wfStr += QString(";dur=%1;").arg(durationMs);
     GUI_INFO("InputBar: voice message ready: dt=%s stem=%s blocks=%d dur=%.1fs",
              qPrintable(blk.dt), qPrintable(blk.basename), blk.numBlocks, durationSec);
     emit sendVoiceMessage(blk.dt, blk.basename, blk.suffix, blk.ext,

tools/chatgui/src/messagedelegate.cpp

@@ -710,10 +710,7 @@ void MessageDelegate::paint(QPainter *painter, const QStyleOptionViewItem &optio
             float barW = (float)wfR.width() / wfN;
             int ph = wfR.height() - 3;
             for (int i = 0; i < wfN; i++) {
-                float v = wf[i].toFloat();
-                float db = v > 0.00001f ? 20.0f * log10f(v) : -100.0f;
-                float logV = (db + 60.0f) / 60.0f;
-                if (logV < 0) logV = 0; if (logV > 1) logV = 1;
+                float logV = wf[i].toFloat();  /* already 0..1 normalized */
                 int barH = 2 + (int)(logV * (ph - 2));
                 int x = wfR.left() + (int)(i * barW);
                 int y = wfR.top() + ph - barH;
@@ -724,8 +721,8 @@ void MessageDelegate::paint(QPainter *painter, const QStyleOptionViewItem &optio
                 QColor idle(0x70, 0x70, 0x78, 130);
                 painter->setBrush((isPlaying || isPaused) ? (before ? played : unplayed) : idle);
                 painter->drawRect(QRect(x, y, bw, barH));
-                if (i == 0) GUI_DEBUG("voice paint: wfN=%d wfW=%d v=%.3f dB=%.1f logV=%.2f barH=%d",
-                                      wfN, wfR.width(), v, db, logV, barH);
+                if (i == 0) GUI_DEBUG("voice paint: wfN=%d wfW=%d logV=%.2f barH=%d",
+                                       wfN, wfR.width(), logV, barH);
             }
         }
 

tools/chatgui/src/messagelist.cpp

@@ -13,6 +13,8 @@
 #include <QPainter>
 #include <QPixmap>
 #include <QDateTime>
+#include <QJsonDocument>
+#include <QJsonObject>
 #include <QFile>
 #include <QScrollBar>
 #include <QApplication>
@@ -95,23 +97,26 @@ static void setVoiceMessageRoles(QStandardItem* item, const QByteArray& data,
 
     if (ct == "audio/opus") {
         QString raw = QString::fromUtf8(data);
-        int pipe1 = raw.indexOf('|');
-        if (pipe1 < 0 && raw.startsWith('{')) return;
-        int pipe2 = raw.indexOf('|', pipe1 + 1);
-        QString fname = pipe1 >= 0 ? raw.left(pipe1) : raw;
-        QString dur  = pipe2 >= 0 ? raw.mid(pipe1 + 1, pipe2 - pipe1 - 1) : raw.mid(pipe1 + 1);
-        QString rest = pipe2 >= 0 ? raw.mid(pipe2 + 1) : QString();
-
-        /* find end of wf (comma-separated floats), then file metadata */
-        int afterWf = -1;
-        int pipeCount = 0;
-        for (int i = 0; i < rest.size(); i++) {
-            if (rest[i] == '|') { pipeCount++; if (pipeCount >= 4) { afterWf = i; break; } }
-        }
+        if (raw.startsWith('{')) return;
+
+        /* unified format: wf={base64};dur={ms};|{file_size}|{block_size}|{num_blocks}|{sigs} */
         QString wfData;
-        if (afterWf >= 0) {
-            wfData = rest.left(afterWf);
-            QString meta = rest.mid(afterWf + 1);
+        int durMs = 0;
+
+        if (raw.startsWith("wf=")) {
+            int durPos = raw.indexOf(";dur=", 3);
+            int durEnd = raw.indexOf(';', durPos + 5);
+            if (durPos > 0 && durEnd > 0) {
+                wfData = raw.mid(3, durPos - 3);  /* 100 base64 chars */
+                durMs  = raw.mid(durPos + 5, durEnd - durPos - 5).toInt();
+            }
+        }
+        item->setData(QString::number(durMs / 1000.0, 'f', 1) + "s", MsgVoiceDurationRole);
+
+        /* block metadata after last ; */
+        int pipePos = raw.indexOf('|');
+        if (pipePos > 0) {
+            QString meta = raw.mid(pipePos + 1);
             QStringList parts = meta.split('|');
             if (parts.size() >= 4) {
                 item->setData(parts[0].toULongLong(), MsgVoiceFileSizeRole);
@@ -119,25 +124,32 @@ static void setVoiceMessageRoles(QStandardItem* item, const QByteArray& data,
                 item->setData(parts[2].toUInt(),    MsgVoiceNumBlocksRole);
                 item->setData(parts[3],             MsgVoiceSigsRole);
             }
-        } else {
-            wfData = rest;
         }
 
-        if (!dur.isEmpty()) item->setData(dur + "s", MsgVoiceDurationRole);
-        if (!fname.isEmpty()) {
-            QString fullPath = mediaDirBase + "/" + channelId + "/" + fname;
+        /* file path from local_attrs */
+        QJsonObject la = QJsonDocument::fromJson(localAttrs).object();
+        QString fp = la.value("fp").toString();
+        if (!fp.isEmpty()) {
+            QString fullPath = mediaDirBase + "/" + channelId + "/" + fp;
             item->setData(fullPath, MsgVoiceFileRole);
-            DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "setVoiceMessageRoles: voice file=%s dur=%s wf=%d exists=%d",
-                       qPrintable(fullPath), qPrintable(dur),
-                       wfData.split(',').size(), QFile::exists(fullPath));
-        } else {
-            DEBUG_WARN(DEBUG_CATEGORY_DEBUG, "setVoiceMessageRoles: empty filename, raw='%s'", qPrintable(raw));
         }
+
+        /* decode base64 waveform to normalized 0..1 float list */
         if (!wfData.isEmpty()) {
             QList<QVariant> wf;
-            for (const auto& s : wfData.split(','))
-                wf.append(s.toDouble());
+            for (int i = 0; i < wfData.size(); i++) {
+                QChar c = wfData[i];
+                int idx = 0;
+                if (c >= 'A' && c <= 'Z') idx = c.unicode() - 'A';
+                else if (c >= 'a' && c <= 'z') idx = c.unicode() - 'a' + 26;
+                else if (c >= '0' && c <= '9') idx = c.unicode() - '0' + 52;
+                else if (c == '+') idx = 62;
+                else if (c == '/') idx = 63;
+                wf.append((float)idx / 63.0f);
+            }
             item->setData(wf, MsgVoiceWaveformRole);
+            DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "setVoiceMessageRoles: voice dur=%dms wf=%d exists=%d",
+                       durMs, wf.size(), QFile::exists(fp));
         }
     }
     if (ct == "application/octet-stream") {
@@ -240,9 +252,7 @@ MessageList::MessageList(DbManager* db, AudioRecorder* recorder, QWidget *parent
                                                                      int durationMs, const QString& wfStr) {
         if (m_currentChannelId.isEmpty()) return;
 
-        QString displayName = basename + "." + ext;
-        QByteArray textData = (displayName + "|" +
-            QString::number(durationMs / 1000.0, 'f', 1) + "|" + wfStr).toUtf8();
+        QByteArray textData = wfStr.toUtf8();
         auto ts = QDateTime::currentMSecsSinceEpoch();
 
         struct chat_msg_submit* req = (struct chat_msg_submit*)