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Fixed seeking

CQTexperiment
vspader 2006-05-12 00:34:56 +00:00
parent bf3cc599e4
commit f32632abd0
3 changed files with 16 additions and 6 deletions
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2
Playlist/PlaylistController.m
View File

@ -10,7 +10,7 @@
#import "PlaylistEntry.h" #import "PlaylistEntry.h"
#import "Shuffle.h" #import "Shuffle.h"
extern NSArray * getCoreAudioExtensions(); #import "CoreAudioUtils.h"
@implementation PlaylistController @implementation PlaylistController

1
Sound/SoundFile/CoreAudioFile.h
View File

@ -32,6 +32,7 @@
SInt64 _totalPackets; SInt64 _totalPackets;
UInt32 _maxPacketSize; UInt32 _maxPacketSize;
UInt32 _framesPerPacket;
AudioConverterRef _converter; AudioConverterRef _converter;
void *_convBuf; void *_convBuf;

13
Sound/SoundFile/CoreAudioFile.m
View File

@ -224,6 +224,8 @@ OSStatus ACInputProc(AudioConverterRef inAudioConverter, UInt32 *ioNumberDataPac
channels = asbd.mChannelsPerFrame; channels = asbd.mChannelsPerFrame;
frequency = asbd.mSampleRate; frequency = asbd.mSampleRate;
_framesPerPacket = asbd.mFramesPerPacket;
// mBitsPerChannel will only be set for lpcm formats // mBitsPerChannel will only be set for lpcm formats
if(0 == bitsPerSample) { if(0 == bitsPerSample) {
bitsPerSample = 16; bitsPerSample = 16;
@ -331,11 +333,18 @@ OSStatus ACInputProc(AudioConverterRef inAudioConverter, UInt32 *ioNumberDataPac
- (double) seekToTime:(double)milliseconds - (double) seekToTime:(double)milliseconds
{ {
double newTime;
NSLog(@"Seeking to: %lf", milliseconds);
NSLog(@"Max frames: %lli", _totalPackets);
[_countLock lock]; [_countLock lock];
_packetCount = ((milliseconds / 1000.f) * frequency); _packetCount = ((milliseconds / 1000.f) * frequency)/_framesPerPacket;
NSLog(@"Seeking in coreaudio: %lli", _packetCount);
[_countLock unlock]; [_countLock unlock];
return YES; newTime = ((_packetCount * _framesPerPacket)/frequency)*1000.0;
return newTime;
} }
@end @end