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Pre-allocate availableAllocations to prevent a re-size in release

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PiperOrigin-RevId: 418022431
This commit is contained in:
aquilescanta 2021-12-23 17:40:14 +00:00 committed by tonihei
parent fe1ffdb959
commit 6ee7cdf968
1 changed files with 6 additions and 6 deletions
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12
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/upstream/DefaultAllocator.java
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@ -104,6 +104,12 @@ public final class DefaultAllocator implements Allocator {
availableAllocations[availableCount] = null; availableAllocations[availableCount] = null;
} else { } else {
allocation = new Allocation(new byte[individualAllocationSize], 0); allocation = new Allocation(new byte[individualAllocationSize], 0);
if (allocatedCount > availableAllocations.length) {
// Make availableAllocations be large enough to contain all allocations made by this
// allocator so that release() does not need to grow the availableAllocations array. See
// [Internal ref: b/209801945].
availableAllocations = Arrays.copyOf(availableAllocations, availableAllocations.length * 2);
}
} }
return allocation; return allocation;
} }
@ -116,12 +122,6 @@ public final class DefaultAllocator implements Allocator {
@Override @Override
public synchronized void release(Allocation[] allocations) { public synchronized void release(Allocation[] allocations) {
if (availableCount + allocations.length >= availableAllocations.length) {
availableAllocations =
Arrays.copyOf(
availableAllocations,
max(availableAllocations.length * 2, availableCount + allocations.length));
}
for (Allocation allocation : allocations) { for (Allocation allocation : allocations) {
availableAllocations[availableCount++] = allocation; availableAllocations[availableCount++] = allocation;
} }