Updating media content

Making it possible for media to be partially updated, for streaming. Also fixed a problem with multiple concurrent audio players started on a single media item.

1 files changed, 8 insertions, 2 deletions

diff --git a/src/audio/player.c b/src/audio/player.c
index f1d6a2c8..177613bb 100644
--- a/src/audio/player.c
+++ b/src/audio/player.c
@@ -477,10 +477,16 @@ void updateSourceData_Player(iPlayer *d, const iBlock *data, enum iPlayerUpdate
             set_Block(&input->data, data);
             input->isComplete = iFalse;
             break;
-        case append_PlayerUpdate:
-            append_Block(&input->data, data);
+        case append_PlayerUpdate: {
+            const size_t oldSize = size_Block(&input->data);
+            const size_t newSize = size_Block(data);
+            iAssert(newSize >= oldSize);
+            /* The old parts cannot have changed. */
+            iAssert(memcmp(constData_Block(&input->data), constData_Block(data), oldSize) == 0);
+            appendData_Block(&input->data, constBegin_Block(data) + oldSize, newSize - oldSize);
             input->isComplete = iFalse;
             break;
+        }
         case complete_PlayerUpdate:
             input->isComplete = iTrue;
             break;