Cider Isn't Darwin Emulation, Really
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Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in consideration of your agreement to the following terms, and your use, installation, modification or redistribution of this Apple software constitutes acceptance of these terms. If you do not agree with these terms, please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject to these terms, Apple grants you a personal, non-exclusive license, under Apple�s copyrights in this original Apple software (the "Apple Software"), to use, reproduce, modify and redistribute the Apple Software, with or without modifications, in source and/or binary forms; provided that if you redistribute the Apple Software in its entirety and without modifications, you must retain this notice and the following text and disclaimers in all such redistributions of the Apple Software. Neither the name, trademarks, service marks or logos of Apple Computer, Inc. may be used to endorse or promote products derived from the Apple Software without specific prior written permission from Apple. Except as expressly stated in this notice, no other rights or licenses, express or implied, are granted by Apple herein, including but not limited to any patent rights that may be infringed by your derivative works or by other works in which the Apple Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.*//*============================================================================= main.cpp =============================================================================*/
/* auprocess - takes a source audio file, an AU and generates a processed file */
#include "CAAUProcessor.h"#include "CAAudioFile.h"#include "CAXException.h"#include "CAHostTimeBase.h"#include "CAFilePathUtils.h"#include "CAAudioFileFormats.h"
#if TARGET_OS_MAC #include <pthread.h> #include <mach/mach.h>#endif
#define require_noerr ca_require_noerr
#define CA_AU_PROFILE_TIME 1
#if CA_AU_PROFILE_TIME UInt64 sReadTime = 0; UInt64 sRenderTime = 0;#endif
#pragma mark __print helpers
void PRINT_MARKS (){ printf ("| "); for (int i = 0; i < 48; ++i) printf (" "); printf ("|\n");}
void PerfResult(const char *toolname, int group, const char *testname, double value, const char *units, const char *fmt="%.3f"){ printf("<result tool='%s' group='%d' test='%s' value='", toolname, group, testname); printf(fmt, value); printf("' units='%s' />\n", units);}
static int lastProgressPrintDone = -1;void PRINT_PROGRESS (Float32 inPercent) { int current = int(inPercent / 4.0); for (int i = lastProgressPrintDone; i < current; ++i) printf ("* "); lastProgressPrintDone = current;}
#pragma mark __Inpput Callback Definitions
static AURenderCallbackStruct sInputCallback; // we set one of these two callbacks based on AU type
static OSStatus InputCallback (void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData){ #if CA_AU_PROFILE_TIME UInt64 now = CAHostTimeBase::GetTheCurrentTime(); #endif
CAAudioFile &readFile = *(static_cast<CAAudioFile*>(inRefCon));
#if !CAAF_USE_EXTAUDIOFILE if (SInt64(inTimeStamp->mSampleTime) > readFile.GetNumberPackets()) {#else if (SInt64(inTimeStamp->mSampleTime) > readFile.GetNumberFrames()) {#endif#if DEBUG printf ("reading past end of input\n");#endif return -1; }
readFile.Seek (SInt64(inTimeStamp->mSampleTime)); readFile.Read (inNumberFrames, ioData);
#if CA_AU_PROFILE_TIME sReadTime += (CAHostTimeBase::GetTheCurrentTime() - now); #endif
return noErr;}
static OSStatus FConvInputCallback (void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData){ #if CA_AU_PROFILE_TIME UInt64 now = CAHostTimeBase::GetTheCurrentTime(); #endif
CAAudioFile &readFile = *(static_cast<CAAudioFile*>(inRefCon));
// this test is ONLY needed in case of processing with a Format Converter type of AU // in all other cases, the CAAUProcessor class will NEVER call you for input // beyond the end of the file....
#if !CAAF_USE_EXTAUDIOFILE if (SInt64(inTimeStamp->mSampleTime) >= readFile.GetNumberPackets()) {#else if (SInt64(inTimeStamp->mSampleTime) >= readFile.GetNumberFrames()) {#endif return -1; } readFile.Seek (SInt64(inTimeStamp->mSampleTime)); UInt32 readPackets = inNumberFrames; // also, have to do this for a format converter AU - otherwise we'd just read what we're told#if !CAAF_USE_EXTAUDIOFILE if (SInt64(inTimeStamp->mSampleTime + inNumberFrames) > readFile.GetNumberPackets()) {#else if (SInt64(inTimeStamp->mSampleTime + inNumberFrames) > readFile.GetNumberFrames()) {#endif // first set this to zero as we're only going to read a partial number of frames AudioBuffer *buf = ioData->mBuffers; for (UInt32 i = ioData->mNumberBuffers; i--; ++buf) memset((Byte *)buf->mData, 0, buf->mDataByteSize);#if !CAAF_USE_EXTAUDIOFILE readPackets = UInt32 (readFile.GetNumberPackets() - SInt64(inTimeStamp->mSampleTime));#else readPackets = UInt32 (readFile.GetNumberFrames() - SInt64(inTimeStamp->mSampleTime));#endif } readFile.Read (readPackets, ioData);
#if CA_AU_PROFILE_TIME sReadTime += (CAHostTimeBase::GetTheCurrentTime() - now); #endif
return noErr;}
struct ReadBuffer { AUOutputBL *readData; UInt32 readFrames;};
static OSStatus MemoryInputCallback (void *inRefCon, AudioUnitRenderActionFlags *ioActionFlags, const AudioTimeStamp *inTimeStamp, UInt32 inBusNumber, UInt32 inNumberFrames, AudioBufferList *ioData){ #if CA_AU_PROFILE_TIME UInt64 now = CAHostTimeBase::GetTheCurrentTime(); #endif
ReadBuffer *readBuffer = (ReadBuffer*)inRefCon; if (((readBuffer->readFrames + inNumberFrames) * sizeof(Float32)) > (readBuffer->readData->ABL()->mBuffers[0].mDataByteSize)) { // going past read size AudioBuffer *buf = ioData->mBuffers; for (UInt32 i = ioData->mNumberBuffers; i--; ++buf) memset((Byte *)buf->mData, 0, buf->mDataByteSize); } else { AudioBuffer *buf = ioData->mBuffers; AudioBuffer *rBuf = readBuffer->readData->ABL()->mBuffers; for (UInt32 i = ioData->mNumberBuffers; i--; ++buf, ++rBuf) { AudioBuffer readB = *rBuf; readB.mData = static_cast<Float32*>(rBuf->mData) + readBuffer->readFrames; memcpy (buf->mData, readB.mData, buf->mDataByteSize); } readBuffer->readFrames += inNumberFrames; }
#if CA_AU_PROFILE_TIME sReadTime += (CAHostTimeBase::GetTheCurrentTime() - now); #endif
return noErr;}
#pragma mark __Utility Helpers
CFPropertyListRef ReadPresetFromPresetFile (char* filePath){ if (!filePath) return NULL; FSRef ref; if (FSPathMakeRef((UInt8 *)filePath, &ref, NULL)) return NULL; CFDataRef resourceData = NULL; CFPropertyListRef theData = NULL; CFStringRef errString = NULL; CFURLRef fileURL = CFURLCreateFromFSRef (kCFAllocatorDefault, &ref); if (fileURL == NULL) { goto home; } SInt32 result; // Read the XML file. Boolean status; status = CFURLCreateDataAndPropertiesFromResource (kCFAllocatorDefault, fileURL, &resourceData, // place to put file data NULL, NULL, &result); if (status == false || result) { goto home; } theData = CFPropertyListCreateFromXMLData (kCFAllocatorDefault, resourceData, kCFPropertyListImmutable, &errString); if (theData == NULL || errString) { if (theData) CFRelease (theData); theData = NULL; goto home; } home: if (fileURL) CFRelease (fileURL); if (resourceData) CFRelease (resourceData); if (errString) CFRelease (errString); return theData;}
#pragma mark __the setup code
#define OFFLINE_AU_CMD "[-au TYPE SUBTYPE MANU] The Audio Unit component description\n\t"#define INPUT_FILE "[-i /Path/To/File] The file that is to be processed.\n\t"#define OUTPUT_FILE "[-o /Path/To/File/To/Create] This will be in the same format as the input file\n\t"#define AU_PRESET_CMD "[-p /Path/To/AUPreset/File] Specify an AU Preset File to establish the state of the AU\n\t"#define SHORT_MEM_CMD "[-m] Just reads and processes the first half second of the input file\n\t"#define USE_MAX_FRAMES "[-f max_frames] default is 32768 (512 for aufc units)" static char* usageStr = "Usage: auprocess\n\t" OFFLINE_AU_CMD INPUT_FILE OUTPUT_FILE AU_PRESET_CMD SHORT_MEM_CMD USE_MAX_FRAMES;
int main(int argc, const char * argv[]){ setbuf (stdout, NULL);
#if TARGET_OS_MAC { thread_extended_policy_data_t theFixedPolicy; theFixedPolicy.timeshare = false; // set to true for a non-fixed thread thread_policy_set(pthread_mach_thread_np(pthread_self()), THREAD_EXTENDED_POLICY, (thread_policy_t)&theFixedPolicy, THREAD_EXTENDED_POLICY_COUNT);
// We keep a reference to the spawning thread's priority around (initialized in the constructor), // and set the importance of the child thread relative to the spawning thread's priority. thread_precedence_policy_data_t thePrecedencePolicy; thePrecedencePolicy.importance = 63 - 36; thread_policy_set(pthread_mach_thread_np(pthread_self()), THREAD_PRECEDENCE_POLICY, (thread_policy_t)&thePrecedencePolicy, THREAD_PRECEDENCE_POLICY_COUNT); }#endif
// These are the variables that are set up from the input parsing char* srcFilePath = NULL; char* destFilePath = NULL; char* auPresetFile = NULL; bool shortMemoryProfile = false; OSType manu, subType, type = 0; int userSetFrames = -1; for (int i = 1; i < argc; ++i) { if (strcmp (argv[i], "-au") == 0) { if ( (i + 3) < argc ) { StrToOSType (argv[i + 1], type); StrToOSType (argv[i + 2], subType); StrToOSType (argv[i + 3], manu); i += 3; } else { printf ("Which Audio Unit:\n%s", usageStr); exit(1); } } else if (strcmp (argv[i], "-i") == 0) { srcFilePath = const_cast<char*>(argv[++i]); } else if (strcmp (argv[i], "-o") == 0) { destFilePath = const_cast<char*>(argv[++i]); } else if (strcmp (argv[i], "-p") == 0) { auPresetFile = const_cast<char*>(argv[++i]); } else if (strcmp (argv[i], "-m") == 0) { shortMemoryProfile = true; } else if (strcmp (argv[i], "-f") == 0) { sscanf(argv[++i], "%d", &userSetFrames); } else { printf ("%s\n", usageStr); exit(1); } } if (!type || !srcFilePath) { printf ("%s\n", usageStr); exit(1); } if (!destFilePath) { if (!shortMemoryProfile) { printf ("%s\n", usageStr); exit(1); } } // delete pre-existing output file if (!shortMemoryProfile) { FSRef destFSRef; if (FSPathMakeRef((UInt8 *)destFilePath, &destFSRef, NULL) == noErr) { // output file exists - delete it if (FSDeleteObject(&destFSRef)) { printf ("Cannot Delete Output File\n"); exit(1); } } } CAComponentDescription desc(type, subType, manu); CFPropertyListRef presetDict = ReadPresetFromPresetFile(auPresetFile); // the num of frames to use when processing the file with the Render call UInt32 maxFramesToUse = shortMemoryProfile ? 512 : 32768;
// not set from command line if (userSetFrames > 0) { maxFramesToUse = userSetFrames; } // in some settings (for instance a delay with 100% feedback) tail time is essentially infinite // so you should safeguard the final OL render stage (post process) which is aimed at pulling the tail through // if you want to bypass this completely, just set this to zero. Float64 maxTailTimeSecs = 10.; #pragma mark -#pragma mark __ The driving code#pragma mark -
try { CAComponent comp(desc); // CAAUProcessor's constructor throws... so make sure the component is valid if (comp.IsValid() == false) { printf ("Can't Find Component\n"); desc.Print(); exit(1); } CAAUProcessor processor(comp); processor.AU().Print(); CAAudioFile srcFile; CAAudioFile destFile; srcFile.Open(srcFilePath);
CAStreamBasicDescription procFormat (srcFile.GetFileDataFormat()); procFormat.SetCanonical (srcFile.GetFileDataFormat().NumberChannels(), false);
printf ("Processing Format:\n\t"); procFormat.Print(); if (!shortMemoryProfile) { FSRef parentDir; CFStringRef filename; PosixPathToParentFSRefAndName(destFilePath, parentDir, filename); destFile.CreateNew (parentDir, filename, 'AIFF', srcFile.GetFileDataFormat()); destFile.SetClientFormat (procFormat); } srcFile.SetClientFormat (procFormat); AUOutputBL outputList(procFormat);
ReadBuffer* readBuf = NULL;
#if !CAAF_USE_EXTAUDIOFILE UInt64 numInputSamples = srcFile.GetNumberPackets();#else UInt64 numInputSamples = srcFile.GetNumberFrames();#endif if (shortMemoryProfile) { readBuf = new ReadBuffer; readBuf->readData = new AUOutputBL(procFormat); readBuf->readFrames = 0; UInt32 numFrames = UInt32(procFormat.mSampleRate / 2); readBuf->readData->Allocate (numFrames); // half a second of audio data readBuf->readData->Prepare(); // half a second of audio data // read 1/2 second of audio into this read buffer srcFile.Read (numFrames, readBuf->readData->ABL()); sInputCallback.inputProc = MemoryInputCallback; sInputCallback.inputProcRefCon = readBuf; numInputSamples = numFrames; } else { if (desc.IsFConv()) { maxFramesToUse = userSetFrames == -1 ? 512 : maxFramesToUse; // some format converter's can call you several times in small granularities // so you can't use a large buffer to render or you won't return all of the input data // this also lessens the final difference between what you should get and what you do // converter units *really* should have a version that are offline AU's to // handle this for you. sInputCallback.inputProc = FConvInputCallback; } else sInputCallback.inputProc = InputCallback; sInputCallback.inputProcRefCon = &srcFile; } OSStatus result; require_noerr (result = processor.EstablishInputCallback (sInputCallback), home); require_noerr (result = processor.SetMaxFramesPerRender (maxFramesToUse), home); processor.SetMaxTailTime (maxTailTimeSecs); require_noerr (result = processor.Initialize (procFormat, numInputSamples), home); if (presetDict) { require_noerr (result = processor.SetAUPreset (presetDict), home); CFRelease (presetDict); } // this does ALL of the preflighting.. could be specialise for an OfflineAU type // to do this piecemeal and do a progress bar by using the OfflineAUPreflight method require_noerr (result = processor.Preflight (), home); bool isDone; isDone = false; bool needsPostProcessing; bool isSilence; UInt32 numFrames; numFrames = processor.MaxFramesPerRender();
#if CA_AU_PROFILE_TIME sReadTime = 0; sRenderTime = 0;#endif PRINT_MARKS(); // this is the render loop while (!isDone) { #if CA_AU_PROFILE_TIME UInt64 now = CAHostTimeBase::GetTheCurrentTime(); #endif outputList.Prepare(); // have to do this every time... require_noerr (result = processor.Render (outputList.ABL(), numFrames, isSilence, &isDone, &needsPostProcessing), home); #if CA_AU_PROFILE_TIME sRenderTime += (CAHostTimeBase::GetTheCurrentTime() - now); #endif
if (!shortMemoryProfile) PRINT_PROGRESS(processor.GetOLPercentComplete());else PRINT_PROGRESS(((processor.SampleTime() / numInputSamples) * 100.)); if (numFrames && !shortMemoryProfile) destFile.Write (numFrames, outputList.ABL()); } // this is the postprocessing if needed if (!shortMemoryProfile && needsPostProcessing) { isDone = false; numFrames = processor.MaxFramesPerRender(); while (!isDone) { outputList.Prepare(); // have to do this every time... #if CA_AU_PROFILE_TIME UInt64 now = CAHostTimeBase::GetTheCurrentTime(); #endif require_noerr (result = processor.PostProcess (outputList.ABL(), numFrames, isSilence, isDone), home); #if CA_AU_PROFILE_TIME sRenderTime += (CAHostTimeBase::GetTheCurrentTime() - now); #endif
PRINT_PROGRESS(processor.GetOLPercentComplete());
if (numFrames && !shortMemoryProfile) destFile.Write (numFrames, outputList.ABL()); } }
printf ("\n");
home: if (result) { printf ("Exit with bad result:%ld\n", result); exit(result); } if (readBuf) { delete readBuf->readData; delete readBuf; } #if CA_AU_PROFILE_TIME if (!shortMemoryProfile) { // this flushes any remaing data to be written to the disk. // the source file is closed in its destructor of course destFile.Close(); // open the file again, to get stats about it for profiling destFile.Open(destFilePath); }
SInt64 numWritten; if (shortMemoryProfile) numWritten = 0; else {#if !CAAF_USE_EXTAUDIOFILE numWritten = destFile.GetNumberPackets();#else numWritten = destFile.GetNumberFrames();#endif }
printf ("Read File Time:%.2f secs for %lld packets (%.1f secs), wrote %lld packets\n", (CAHostTimeBase::ConvertToNanos (sReadTime) / 1.0e9), numInputSamples, (numInputSamples / procFormat.mSampleRate), numWritten);
if (!shortMemoryProfile) {#if !CAAF_USE_EXTAUDIOFILE UInt64 numOutputSamples = destFile.GetNumberPackets();#else UInt64 numOutputSamples = destFile.GetNumberFrames();#endif if (numOutputSamples == numInputSamples) { printf ("\tWrote the same number of packets as read\n"); } else { bool expectationMet = !desc.IsOffline(); // we don't have any expectations for offline AU's if (processor.LatencySampleCount() || processor.TailSampleCount()) { if (numOutputSamples - numInputSamples == processor.TailSampleCount()) expectationMet = true; if (expectationMet) printf ("Correctly wrote \'Read Size + Tail\'. "); printf ("AU reports (samples): %ld latency, %ld tail\n", processor.LatencySampleCount(), processor.TailSampleCount()); } if (expectationMet == false) { if (numOutputSamples > numInputSamples) { printf ("\tWrote %lld packets (%.2f secs) more than read\n", (numOutputSamples - numInputSamples), ((numOutputSamples - numInputSamples) / procFormat.mSampleRate)); } else { printf ("\tRead %lld packets (%.2f secs) more than wrote\n", (numInputSamples - numOutputSamples), ((numInputSamples - numOutputSamples) / procFormat.mSampleRate)); } } } } Float64 renderTimeSecs = CAHostTimeBase::ConvertToNanos (sRenderTime - sReadTime) / 1.0e9; printf ("Total Render Time:%.2f secs, using render slice size of %ld frames\n", renderTimeSecs, maxFramesToUse); Float64 cpuUsage; if (shortMemoryProfile) cpuUsage = (renderTimeSecs / 0.5) * 100.; else cpuUsage = (renderTimeSecs / (numInputSamples / procFormat.mSampleRate)) * 100.; printf ("CPU Usage for Render Time:%.2f%%\n", cpuUsage);
CFStringRef str = comp.GetCompName(); UInt32 compNameLen = CFStringGetLength (str); CFStringRef presetName = NULL; if (auPresetFile) { CFPropertyListRef dict; if (processor.AU().GetAUPreset (dict) == noErr) { presetName = (CFStringRef)CFDictionaryGetValue((CFDictionaryRef)dict, CFSTR("name")); CFRelease (dict); } }
UInt32 presetLen = presetName ? CFStringGetLength(presetName) : 0;
char* cstr = (char*)malloc (compNameLen + presetLen + 2 + 1); CFStringGetCString (str, cstr, (CFStringGetLength (str) + 1), kCFStringEncodingASCII); if (presetName) { cstr[compNameLen] = ':'; cstr[compNameLen+1] = ':'; CFStringGetCString (presetName, cstr + compNameLen + 2, (CFStringGetLength (presetName) + 1), kCFStringEncodingASCII); } PerfResult("AudioUnitProcess", EndianU32_NtoB(comp.Desc().componentSubType), cstr, cpuUsage, "%realtime"); free (cstr);#endif
} catch (CAXException &e) { char buf[256]; printf("Error: %s (%s)\n", e.mOperation, e.FormatError(buf, sizeof(buf))); exit(1); } catch (...) { printf("An unknown error occurred\n"); exit(1); } return 0;}