Music: Loop switch to leave out the loop marker

Custom music restarts after about 10 seconds on the home screen even with a
60-second clip, though the file holds the whole clip. Turning Loop off writes
the clip without the smpl loop chunk, to see if the PS5 then plays it all.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B3zQD8DZVn9N7NJ6NHPLGg

src/main.cpp

@@ -414,7 +414,7 @@ static void encode_music(Staged &s) {
 static json music_json(const Staged &s) {
     double total = (double)s.audio.pcm.size() / std::max(1, s.audio.channels) / std::max(1, s.audio.rate);
     return {{"ok", true}, {"note", s.note}, {"seconds", s.enc.seconds}, {"total", total}, {"kb", (int)(s.enc.at9.size() / 1024)},
-            {"start", s.opt.start_sec}, {"duration", s.opt.duration_sec},
+            {"start", s.opt.start_sec}, {"duration", s.opt.duration_sec}, {"loop", s.opt.loop},
             {"summary", secs(s.opt.start_sec) + " to " + secs(s.opt.start_sec + s.enc.seconds) + ", " + std::to_string(s.enc.at9.size() / 1024) + " KB"}};
 }
 static json stage_music(const std::vector<uint8_t> &bytes) {
@@ -427,7 +427,7 @@ static json stage_music(const std::vector<uint8_t> &bytes) {
     g_staged["music"] = std::move(s);
     return j;
 }
-// Start (seconds) and length (seconds; 0 = the longest that fits in the PS5's 2 MB limit).
+// Start (seconds), length (seconds; 0 = the longest that fits in the PS5's 2 MB limit) and loop.
 static json music_clip(const json &req) {
     Staged s;
     {
@@ -438,6 +438,7 @@ static json music_clip(const json &req) {
     }
     s.opt.start_sec = std::max(0.0, req.value("start", s.opt.start_sec));
     s.opt.duration_sec = std::max(0.0, req.value("duration", s.opt.duration_sec));
+    s.opt.loop = req.value("loop", s.opt.loop);   // off = no loop marker; the PS5 decides what happens at the end
     encode_music(s);
     json j = music_json(s);
     std::lock_guard<std::mutex> l(g_mu);

src/ui.cpp

@@ -191,6 +191,7 @@ button,input,select{font:inherit;color:inherit}
 .mclip label{color:var(--muted);font-size:13.5px;display:flex;gap:8px;align-items:center}
 .mclip input,.mclip select{padding:8px 12px;border-radius:var(--r-sm);border:1px solid var(--line);background:rgba(0,0,0,.3);color:var(--ink);font-size:14px}
 .mclip input{width:80px}
+.mclip input[type=checkbox]{width:auto;accent-color:#9fd3ff}
 .mclip audio{height:38px;flex:1;min-width:240px}
 .field{display:grid;gap:8px}
 .field label{font-size:13.5px;color:var(--muted)}
@@ -384,6 +385,7 @@ button,input,select{font:inherit;color:inherit}
             <div class="mclip" id="mclip">
               <label>Start <input id="mstart" value="0:00" inputmode="numeric" title="Where the clip starts in the song (m:ss)"></label>
               <label>Length <select id="mlen"><option value="15">15 s</option><option value="30">30 s</option><option value="60">60 s</option><option value="0">Longest that fits</option></select></label>
+              <label title="Marks the whole clip as a loop. Turn off to let the PS5 decide what happens at the end."><input type="checkbox" id="mloop" checked> Loop</label>
               <audio id="maudio" controls preload="none"></audio>
             </div>
           </div>
@@ -730,7 +732,7 @@ async function stage(kind, file){
   try {
     const j = await api('/api/stage/'+kind, {method:'POST', body: await file.arrayBuffer()});
     st.staged[kind] = {note: j.note || '', summary: j.summary || '', fresh: true};
-    if (kind === 'music') { $('#mstart').value = fmtTime(j.start); $('#mlen').value = String(j.duration); }
+    if (kind === 'music') { $('#mstart').value = fmtTime(j.start); $('#mlen').value = String(j.duration); $('#mloop').checked = j.loop !== false; }
   } catch (err) { sl.textContent = err.message; sl.classList.add('warn'); return; }
   if (kind === 'icon') markPick(null);
   refreshPreview(false);
@@ -742,13 +744,13 @@ async function reclip(){
   const sl = document.querySelector('.slot[data-kind="music"] .s');
   sl.textContent = 'Converting…'; sl.classList.remove('warn');
   try {
-    const j = await api('/api/music/clip', {method:'POST', body: JSON.stringify({start: parseTime($('#mstart').value), duration: Number($('#mlen').value)})});
+    const j = await api('/api/music/clip', {method:'POST', body: JSON.stringify({start: parseTime($('#mstart').value), duration: Number($('#mlen').value), loop: $('#mloop').checked})});
     st.staged.music = {note: j.note || '', summary: j.summary || '', fresh: true};
     $('#mstart').value = fmtTime(j.start);
   } catch (err) { sl.textContent = err.message; sl.classList.add('warn'); return; }
   refreshPreview(false);
 }
-$('#mstart').addEventListener('change', reclip); $('#mlen').addEventListener('change', reclip);
+$('#mstart').addEventListener('change', reclip); $('#mlen').addEventListener('change', reclip); $('#mloop').addEventListener('change', reclip);
 $('#afile').onchange = e => { const f = e.target.files[0]; if (f) stage('music', f); };
 const isAudio = f => /^audio\//.test(f.type) || /\.(mp3|wav|flac|aiff?)$/i.test(f.name);