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Debugging: Implement buffer chain logging code

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This optional code, disabled at compile time by default, allows finding
weird issues with the sample decoding chain.

Signed-off-by: Christopher Snowhill <kode54@gmail.com>
This commit is contained in:
Christopher Snowhill 2025-03-03 22:24:17 -08:00
parent c7a160a9e7
commit 462a509c85
4 changed files with 98 additions and 0 deletions
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4
Audio/Chain/ConverterNode.m
View file

@ -67,6 +67,10 @@ static void *kConverterNodeContext = &kConverterNodeContext;
extrapolateBufferSize = 0;
[[NSUserDefaultsController sharedUserDefaultsController] addObserver:self forKeyPath:@"values.volumeScaling" options:0 context:kConverterNodeContext];
#ifdef LOG_CHAINS
[self initLogFiles];
#endif
}
return self;

4
Audio/Chain/DSPNode.m
View file

@ -38,6 +38,10 @@
inMerge = NO;
[self setPreviousNode:p];
#ifdef LOG_CHAINS
[self initLogFiles];
#endif
}
return self;

11
Audio/Chain/Node.h
View file

@ -15,6 +15,8 @@
#define BUFFER_SIZE 1024 * 1024
#define CHUNK_SIZE 16 * 1024
//#define LOG_CHAINS 1
@interface Node : NSObject {
ChunkList *buffer;
Semaphore *writeSemaphore;
@ -41,9 +43,18 @@
BOOL nodeLossless;
double durationPrebuffer;
#ifdef LOG_CHAINS
NSFileHandle *logFileOut;
NSFileHandle *logFileIn;
#endif
}
- (id _Nullable)initWithController:(id _Nonnull)c previous:(id _Nullable)p;
#ifdef LOG_CHAINS
- (void)initLogFiles;
#endif
- (void)cleanUp;
- (BOOL)paused;

79
Audio/Chain/Node.m
View file

@ -17,8 +17,33 @@
#import <mach/mach_time.h>
#ifdef LOG_CHAINS
#import "NSFileHandle+CreateFile.h"
static NSLock * _Node_lock = nil;
static uint64_t _Node_serial;
#endif
@implementation Node
#ifdef LOG_CHAINS
+ (void)initialize {
@synchronized (_Node_lock) {
if(!_Node_lock) {
_Node_lock = [[NSLock alloc] init];
_Node_serial = 0;
}
}
}
- (void)initLogFiles {
[_Node_lock lock];
logFileOut = [NSFileHandle fileHandleForWritingAtPath:[NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"%@_output_%08lld.raw", [self className], _Node_serial++]] createFile:YES];
logFileIn = [NSFileHandle fileHandleForWritingAtPath:[NSTemporaryDirectory() stringByAppendingPathComponent:[NSString stringWithFormat:@"%@_input_%08lld.raw", [self className], _Node_serial++]] createFile:YES];
[_Node_lock unlock];
}
#endif
- (id)initWithController:(id)c previous:(id)p {
self = [super init];
if(self) {
@ -45,6 +70,10 @@
inMerge = NO;
[self setPreviousNode:p];
#ifdef LOG_CHAINS
[self initLogFiles];
#endif
}
return self;
@ -94,6 +123,12 @@
[chunk setLossless:nodeLossless];
[chunk assignSamples:ptr frameCount:amount / nodeFormat.mBytesPerPacket];
#ifdef LOG_CHAINS
if(logFileOut) {
[logFileOut writeData:[NSData dataWithBytes:ptr length:amount]];
}
#endif
double durationList = [buffer listDuration];
double durationLeft = [buffer maxDuration] - durationList;
@ -167,6 +202,14 @@
BOOL doSignal = NO;
if([chunk frameCount]) {
#ifdef LOG_CHAINS
if(logFileOut) {
AudioChunk *chunkCopy = [chunk copy];
size_t frameCount = [chunkCopy frameCount];
NSData *chunkData = [chunkCopy removeSamples:frameCount];
[logFileOut writeData:chunkData];
}
#endif
[buffer addChunk:chunk];
doSignal = YES;
}
@ -324,6 +367,15 @@
[[previousNode writeSemaphore] signal];
}
#ifdef LOG_CHAINS
if(logFileIn) {
AudioChunk *chunkCopy = [ret copy];
size_t frameCount = [chunkCopy frameCount];
NSData *chunkData = [chunkCopy removeSamples:frameCount];
[logFileIn writeData:chunkData];
}
#endif
inRead = NO;
return ret;
@ -385,6 +437,15 @@
[[previousNode writeSemaphore] signal];
}
#ifdef LOG_CHAINS
if(logFileIn) {
AudioChunk *chunkCopy = [ret copy];
size_t frameCount = [chunkCopy frameCount];
NSData *chunkData = [chunkCopy removeSamples:frameCount];
[logFileIn writeData:chunkData];
}
#endif
inRead = NO;
return ret;
@ -432,6 +493,15 @@
if([ret frameCount]) {
[[previousNode writeSemaphore] signal];
#ifdef LOG_CHAINS
if(logFileIn) {
AudioChunk *chunkCopy = [ret copy];
size_t frameCount = [chunkCopy frameCount];
NSData *chunkData = [chunkCopy removeSamples:frameCount];
[logFileIn writeData:chunkData];
}
#endif
}
inMerge = NO;
@ -481,6 +551,15 @@
if([ret frameCount]) {
[[previousNode writeSemaphore] signal];
#ifdef LOG_CHAINS
if(logFileIn) {
AudioChunk *chunkCopy = [ret copy];
size_t frameCount = [chunkCopy frameCount];
NSData *chunkData = [chunkCopy removeSamples:frameCount];
[logFileIn writeData:chunkData];
}
#endif
}
inMerge = NO;