acb1dd75d3
By applying copious amounts of autorelease pools, memory is freed in a timely manner. Prior to this, buffer objects were freed, but not being released, and thus accumulating in memory indefinitely, as the original threads and functions had autorelease pools that scoped the entire thread, rather than individual function blocks that utilized the new buffering system. This fixes memory growth caused by playback. Signed-off-by: Christopher Snowhill <kode54@gmail.com>
97 lines
1.8 KiB
Objective-C
97 lines
1.8 KiB
Objective-C
//
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// ChunkList.m
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// CogAudio Framework
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//
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// Created by Christopher Snowhill on 2/5/22.
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//
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#import "ChunkList.h"
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@implementation ChunkList
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@synthesize listDuration;
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@synthesize maxDuration;
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- (id)initWithMaximumDuration:(double)duration {
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self = [super init];
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if(self) {
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chunkList = [[NSMutableArray alloc] init];
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listDuration = 0.0;
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maxDuration = duration;
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inAdder = NO;
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inRemover = NO;
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stopping = NO;
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}
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return self;
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}
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- (void)dealloc {
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stopping = YES;
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while(inAdder || inRemover) {
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usleep(500);
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}
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}
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- (void)reset {
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@synchronized(chunkList) {
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[chunkList removeAllObjects];
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listDuration = 0.0;
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}
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}
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- (BOOL)isEmpty {
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@synchronized(chunkList) {
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return [chunkList count] == 0;
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}
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}
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- (BOOL)isFull {
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return (maxDuration - listDuration) < 0.01;
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}
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- (void)addChunk:(AudioChunk *)chunk {
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if(stopping) return;
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inAdder = YES;
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const double chunkDuration = [chunk duration];
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@synchronized(chunkList) {
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[chunkList addObject:chunk];
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listDuration += chunkDuration;
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}
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inAdder = NO;
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}
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- (AudioChunk *)removeSamples:(size_t)maxFrameCount {
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if(stopping) {
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return [[AudioChunk alloc] init];
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}
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@synchronized(chunkList) {
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inRemover = YES;
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if(![chunkList count])
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return [[AudioChunk alloc] init];
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AudioChunk *chunk = [chunkList objectAtIndex:0];
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if([chunk frameCount] <= maxFrameCount) {
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[chunkList removeObjectAtIndex:0];
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listDuration -= [chunk duration];
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inRemover = NO;
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return chunk;
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}
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NSData *removedData = [chunk removeSamples:maxFrameCount];
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AudioChunk *ret = [[AudioChunk alloc] init];
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[ret setFormat:[chunk format]];
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[ret setChannelConfig:[chunk channelConfig]];
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[ret assignSamples:[removedData bytes] frameCount:maxFrameCount];
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listDuration -= [ret duration];
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inRemover = NO;
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return ret;
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}
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}
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@end
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