MP3 streaming!

CQTexperiment
vspader 2007-03-04 00:17:05 +00:00
parent 1e5c5f54e3
commit 7d6c8fc6f5
5 changed files with 65 additions and 4 deletions

View File

@ -30,7 +30,7 @@
- (BOOL)seekable
{
return YES;
return NO;
}
- (BOOL)seek:(long)position whence:(int)whence

View File

@ -15,6 +15,8 @@
{
Socket *_socket;
BOOL pastHeader;
long byteCount;
}

View File

@ -28,6 +28,7 @@
if (_socket) {
NSData *request = [[NSString stringWithFormat:@"GET %@ HTTP/1.0\nHOST: %@\n\n",[url path],[url host]] dataUsingEncoding:NSUTF8StringEncoding];
[_socket send:(void *)[request bytes] amount:[request length]];
pastHeader = NO;
}
return (_socket != nil);
@ -56,6 +57,44 @@
- (int)read:(void *)buffer amount:(int)amount
{
int l = [_socket receive:buffer amount:amount];
if (!pastHeader) {
uint8_t *f = (uint8_t *)strnstr((const char *)buffer, "\r\n\r\n", l);
if (f)
{
pastHeader = YES;
uint8_t *bufferOffset = f + 4; //\r\n\r\n
uint8_t *bufferEnd = (uint8_t *)buffer + l;
int amountRemaining = bufferEnd - bufferOffset;
/*
//For testing only
FILE *testFout = fopen("header.raw", "w");
fwrite(buffer, 1, bufferOffset - (uint8_t *)buffer, testFout);
fclose(testFout);
testFout = fopen("test.raw", "w");
fwrite(bufferOffset, 1, amountRemaining, testFout);
fclose(testFout);
*/
memmove(buffer,bufferOffset, amountRemaining);
return amountRemaining + [self read:((uint8_t *)buffer + amountRemaining) amount:(amount - amountRemaining)];
}
else {
//Keep searching for header. Note: NEED TO WATCH BOUNDARY CASES
return [self read:buffer amount:amount];
}
}
/*
//FOR TESTING ONLY
FILE *testFout = fopen("test.raw", "a");
fwrite(buffer, 1, l, testFout);
fclose(testFout);
*/
if (l > 0)
byteCount += l;

View File

@ -33,6 +33,8 @@
BOOL _seekSkip;
BOOL _firstFrame;
//For gapless playback of mp3s
BOOL _gapless;
long _currentFrame;

View File

@ -270,6 +270,8 @@ int parse_headers(struct xing *xing, struct lame *lame, struct mad_bitptr ptr, u
length = mad_timer_count(_duration, MAD_UNITS_MILLISECONDS);
bitrate /= 1000;
bitsPerSample = 16;
[_source seek:0 whence:SEEK_SET];
@ -291,10 +293,14 @@ int parse_headers(struct xing *xing, struct lame *lame, struct mad_bitptr ptr, u
mad_frame_init(&_frame);
mad_synth_init(&_synth);
mad_timer_reset(&_timer);
bitsPerSample = 16;
return [self scanFileFast:YES useXing:YES];
_firstFrame = YES;
if ([_source seekable]) {
return [self scanFileFast:YES useXing:YES];
}
NSLog(@"NOT SCANNING FILE!!!");
return YES;
}
@ -506,6 +512,18 @@ static inline signed int scale (mad_fixed_t sample)
continue;
}
if (_firstFrame && ![_source seekable]) {
frequency = _frame.header.samplerate;
channels = MAD_NCHANNELS(&_frame.header);
bitsPerSample = 16;
NSLog(@"FORMAT CHANGED: %f", frequency);
[self willChangeValueForKey:@"properties"];
[self didChangeValueForKey:@"properties"];
_firstFrame = NO;
}
mad_timer_add (&_timer, _frame.header.duration);
mad_synth_frame (&_synth, &_frame);