char *CAStreamBasicDescription::AsString(char *buf, size_t bufsize) const
{
char *theBuffer = buf;
int nc;
char formatID[5];
*(UInt32 *)formatID = CFSwapInt32HostToBig(mFormatID);
formatID[4] = '\0';
nc = snprintf(buf, bufsize, "%2d ch, %6.0f Hz, '%-4.4s' (0x%08X) ", (int)NumberChannels(), mSampleRate, formatID, (int)mFormatFlags);
buf += nc; bufsize -= nc;
if (mFormatID == kAudioFormatLinearPCM)
{
bool isInt = !(mFormatFlags & kLinearPCMFormatFlagIsFloat);
int wordSize = SampleWordSize();
const char *endian = (wordSize > 1) ?
((mFormatFlags & kLinearPCMFormatFlagIsBigEndian) ? " big-endian" : " little-endian" ) : "";
const char *sign = isInt ?
((mFormatFlags & kLinearPCMFormatFlagIsSignedInteger) ? " signed" : " unsigned") : "";
const char *floatInt = isInt ? "integer" : "float";
char packed[32];
if (wordSize > 0 && PackednessIsSignificant())
{
if (mFormatFlags & kLinearPCMFormatFlagIsPacked)
sprintf(packed, "packed in %d bytes", wordSize);
else
sprintf(packed, "unpacked in %d bytes", wordSize);
} else
packed[0] = '\0';
const char *align = (wordSize > 0 && AlignmentIsSignificant()) ?
((mFormatFlags & kLinearPCMFormatFlagIsAlignedHigh) ? " high-aligned" : " low-aligned") : "";
const char *deinter = (mFormatFlags & kAudioFormatFlagIsNonInterleaved) ? ", deinterleaved" : "";
const char *commaSpace = (packed[0]!='\0') || (align[0]!='\0') ? ", " : "";
char bitdepth[20];
#if CA_PREFER_FIXED_POINT
int fracbits = (mFormatFlags & kLinearPCMFormatFlagsSampleFractionMask) >> kLinearPCMFormatFlagsSampleFractionShift;
if (fracbits > 0)
sprintf(bitdepth, "%d.%d", (int)mBitsPerChannel - fracbits, fracbits);
else
#endif
sprintf(bitdepth, "%d", (int)mBitsPerChannel);
nc = snprintf(buf, bufsize, "%s-bit%s%s %s%s%s%s%s",
bitdepth, endian, sign, floatInt,
commaSpace, packed, align, deinter);
//buf += nc; bufsize -= nc;
} else if (mFormatID == 'alac') { // kAudioFormatAppleLossless
char *CAStreamBasicDescription::AsString(char *buf, size_t _bufsize) const
{
int bufsize = (int)_bufsize; // must be signed to protect against overflow
char *theBuffer = buf;
int nc;
char formatID[24];
CAStringForOSType (mFormatID, formatID);
nc = snprintf(buf, bufsize, "%2d ch, %6.0f Hz, %s (0x%08X) ", (int)NumberChannels(), mSampleRate, formatID, (int)mFormatFlags);
buf += nc;
if ((bufsize -= nc) <= 0) goto exit;
if (mFormatID == kAudioFormatLinearPCM) {
bool isInt = !(mFormatFlags & kLinearPCMFormatFlagIsFloat);
int wordSize = SampleWordSize();
const char *endian = (wordSize > 1) ?
((mFormatFlags & kLinearPCMFormatFlagIsBigEndian) ? " big-endian" : " little-endian" ) : "";
const char *sign = isInt ?
((mFormatFlags & kLinearPCMFormatFlagIsSignedInteger) ? " signed" : " unsigned") : "";
const char *floatInt = isInt ? "integer" : "float";
char packed[32];
if (wordSize > 0 && PackednessIsSignificant()) {
if (mFormatFlags & kLinearPCMFormatFlagIsPacked)
snprintf(packed, sizeof(packed), "packed in %d bytes", wordSize);
else
snprintf(packed, sizeof(packed), "unpacked in %d bytes", wordSize);
} else
packed[0] = '\0';
const char *align = (wordSize > 0 && AlignmentIsSignificant()) ?
((mFormatFlags & kLinearPCMFormatFlagIsAlignedHigh) ? " high-aligned" : " low-aligned") : "";
const char *deinter = (mFormatFlags & kAudioFormatFlagIsNonInterleaved) ? ", deinterleaved" : "";
const char *commaSpace = (packed[0]!='\0') || (align[0]!='\0') ? ", " : "";
char bitdepth[20];
int fracbits = (mFormatFlags & kLinearPCMFormatFlagsSampleFractionMask) >> kLinearPCMFormatFlagsSampleFractionShift;
if (fracbits > 0)
snprintf(bitdepth, sizeof(bitdepth), "%d.%d", (int)mBitsPerChannel - fracbits, fracbits);
else
snprintf(bitdepth, sizeof(bitdepth), "%d", (int)mBitsPerChannel);
/* nc =*/ snprintf(buf, bufsize, "%s-bit%s%s %s%s%s%s%s",
bitdepth, endian, sign, floatInt,
commaSpace, packed, align, deinter);
// buf += nc; if ((bufsize -= nc) <= 0) goto exit;
} else if (mFormatID == 'alac') { // kAudioFormatAppleLossless
void CAStreamBasicDescription::PrintFormat2(FILE *f, const char *indent, const char *name) const
{
fprintf(f, "%s%s ", indent, name);
char formatID[5];
*(UInt32 *)formatID = CFSwapInt32HostToBig(mFormatID);
formatID[4] = '\0';
fprintf(f, "%2d ch, %6.0f Hz, '%-4.4s' (0x%08X) ",
(int)NumberChannels(), mSampleRate, formatID,
(int)mFormatFlags);
if (mFormatID == kAudioFormatLinearPCM) {
bool isInt = !(mFormatFlags & kLinearPCMFormatFlagIsFloat);
int wordSize = SampleWordSize();
const char *endian = (wordSize > 1) ?
((mFormatFlags & kLinearPCMFormatFlagIsBigEndian) ? " big-endian" : " little-endian" ) : "";
const char *sign = isInt ?
((mFormatFlags & kLinearPCMFormatFlagIsSignedInteger) ? " signed" : " unsigned") : "";
const char *floatInt = isInt ? "integer" : "float";
char packed[32];
if (wordSize > 0 && PackednessIsSignificant()) {
if (mFormatFlags & kLinearPCMFormatFlagIsPacked)
sprintf(packed, "packed in %d bytes", wordSize);
else
sprintf(packed, "unpacked in %d bytes", wordSize);
} else
packed[0] = '\0';
const char *align = (wordSize > 0 && AlignmentIsSignificant()) ?
((mFormatFlags & kLinearPCMFormatFlagIsAlignedHigh) ? " high-aligned" : " low-aligned") : "";
const char *deinter = (mFormatFlags & kAudioFormatFlagIsNonInterleaved) ? ", deinterleaved" : "";
const char *commaSpace = (packed[0]!='\0') || (align[0]!='\0') ? ", " : "";
fprintf(f, "%d-bit%s%s %s%s%s%s%s",
(int)mBitsPerChannel, endian, sign, floatInt,
commaSpace, packed, align, deinter);
} else if (mFormatID == 'alac') { // kAudioFormatAppleLossless
int sourceBits = 0;
switch (mFormatFlags)
{
case 1: // kAppleLosslessFormatFlag_16BitSourceData
sourceBits = 16;
break;
case 2: // kAppleLosslessFormatFlag_20BitSourceData
sourceBits = 20;
break;
case 3: // kAppleLosslessFormatFlag_24BitSourceData
sourceBits = 24;
break;
case 4: // kAppleLosslessFormatFlag_32BitSourceData
sourceBits = 32;
break;
}
if (sourceBits)
fprintf(f, "from %d-bit source, ", sourceBits);
else
fprintf(f, "from UNKNOWN source bit depth, ");
fprintf(f, "%d frames/packet", (int)mFramesPerPacket);
}
else
fprintf(f, "%d bits/channel, %d bytes/packet, %d frames/packet, %d bytes/frame",
(int)mBitsPerChannel, (int)mBytesPerPacket, (int)mFramesPerPacket, (int)mBytesPerFrame);
}
char *CAStreamBasicDescription::AsString(char *buf, size_t _bufsize, bool brief /*=false*/) const
{
int bufsize = (int)_bufsize; // must be signed to protect against overflow
char *theBuffer = buf;
int nc;
char formatID[24];
CAStringForOSType(mFormatID, formatID, sizeof(formatID));
if (brief) {
CommonPCMFormat com;
bool interleaved;
if (IdentifyCommonPCMFormat(com, &interleaved) && com != kPCMFormatOther) {
const char *desc;
switch (com) {
case kPCMFormatInt16:
desc = "Int16";
break;
case kPCMFormatFixed824:
desc = "Int8.24";
break;
case kPCMFormatFloat32:
desc = "Float32";
break;
case kPCMFormatFloat64:
desc = "Float64";
break;
default:
desc = NULL;
break;
}
if (desc) {
const char *inter ="";
if (mChannelsPerFrame > 1)
inter = !interleaved ? ", non-inter" : ", inter";
snprintf(buf, static_cast<size_t>(bufsize), "%2d ch, %6.0f Hz, %s%s", (int)mChannelsPerFrame, mSampleRate, desc, inter);
return theBuffer;
}
}
if (mChannelsPerFrame == 0 && mSampleRate == 0.0 && mFormatID == 0) {
snprintf(buf, static_cast<size_t>(bufsize), "%2d ch, %6.0f Hz", (int)mChannelsPerFrame, mSampleRate);
return theBuffer;
}
}
nc = snprintf(buf, static_cast<size_t>(bufsize), "%2d ch, %6.0f Hz, %s (0x%08X) ", (int)NumberChannels(), mSampleRate, formatID, (int)mFormatFlags);
buf += nc; if ((bufsize -= nc) <= 0) goto exit;
if (mFormatID == kAudioFormatLinearPCM) {
bool isInt = !(mFormatFlags & kLinearPCMFormatFlagIsFloat);
int wordSize = static_cast<int>(SampleWordSize());
const char *endian = (wordSize > 1) ?
((mFormatFlags & kLinearPCMFormatFlagIsBigEndian) ? " big-endian" : " little-endian" ) : "";
const char *sign = isInt ?
((mFormatFlags & kLinearPCMFormatFlagIsSignedInteger) ? " signed" : " unsigned") : "";
const char *floatInt = isInt ? "integer" : "float";
char packed[32];
if (wordSize > 0 && PackednessIsSignificant()) {
if (mFormatFlags & kLinearPCMFormatFlagIsPacked)
snprintf(packed, sizeof(packed), "packed in %d bytes", wordSize);
else
snprintf(packed, sizeof(packed), "unpacked in %d bytes", wordSize);
} else
packed[0] = '\0';
const char *align = (wordSize > 0 && AlignmentIsSignificant()) ?
((mFormatFlags & kLinearPCMFormatFlagIsAlignedHigh) ? " high-aligned" : " low-aligned") : "";
const char *deinter = (mFormatFlags & kAudioFormatFlagIsNonInterleaved) ? ", deinterleaved" : "";
const char *commaSpace = (packed[0]!='\0') || (align[0]!='\0') ? ", " : "";
char bitdepth[20];
int fracbits = (mFormatFlags & kLinearPCMFormatFlagsSampleFractionMask) >> kLinearPCMFormatFlagsSampleFractionShift;
if (fracbits > 0)
snprintf(bitdepth, sizeof(bitdepth), "%d.%d", (int)mBitsPerChannel - fracbits, fracbits);
else
snprintf(bitdepth, sizeof(bitdepth), "%d", (int)mBitsPerChannel);
/*nc =*/ snprintf(buf, static_cast<size_t>(bufsize), "%s-bit%s%s %s%s%s%s%s",
bitdepth, endian, sign, floatInt,
commaSpace, packed, align, deinter);
// buf += nc; if ((bufsize -= nc) <= 0) goto exit;
} else if (mFormatID == 'alac') { // kAudioFormatAppleLossless
