diff options
Diffstat (limited to 'libs/appleutility/CAStreamBasicDescription.h')
| -rw-r--r-- | libs/appleutility/CAStreamBasicDescription.h | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/libs/appleutility/CAStreamBasicDescription.h b/libs/appleutility/CAStreamBasicDescription.h index c9caed5aa0..db3faaea0d 100644 --- a/libs/appleutility/CAStreamBasicDescription.h +++ b/libs/appleutility/CAStreamBasicDescription.h @@ -37,7 +37,7 @@ */ /*============================================================================= CAStreamBasicDescription.h - + =============================================================================*/ #ifndef __CAStreamBasicDescription_h__ @@ -82,12 +82,12 @@ public: // Construction/Destruction public: CAStreamBasicDescription() { memset (this, 0, sizeof(AudioStreamBasicDescription)); } - + CAStreamBasicDescription(const AudioStreamBasicDescription &desc) { SetFrom(desc); } - + CAStreamBasicDescription( double inSampleRate, UInt32 inFormatID, UInt32 inBytesPerPacket, UInt32 inFramesPerPacket, UInt32 inBytesPerFrame, UInt32 inChannelsPerFrame, @@ -100,31 +100,31 @@ public: { memcpy(this, &desc, sizeof(AudioStreamBasicDescription)); } - + // _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ // // interrogation - + bool IsPCM() const { return mFormatID == kAudioFormatLinearPCM; } - + bool PackednessIsSignificant() const { Assert(IsPCM(), "PackednessIsSignificant only applies for PCM"); return (SampleWordSize() << 3) != mBitsPerChannel; } - + bool AlignmentIsSignificant() const { return PackednessIsSignificant() || (mBitsPerChannel & 7) != 0; } - + bool IsInterleaved() const { return !IsPCM() || !(mFormatFlags & kAudioFormatFlagIsNonInterleaved); } - + // for sanity with interleaved/deinterleaved possibilities, never access mChannelsPerFrame, use these: - UInt32 NumberInterleavedChannels() const { return IsInterleaved() ? mChannelsPerFrame : 1; } + UInt32 NumberInterleavedChannels() const { return IsInterleaved() ? mChannelsPerFrame : 1; } UInt32 NumberChannelStreams() const { return IsInterleaved() ? 1 : mChannelsPerFrame; } UInt32 NumberChannels() const { return mChannelsPerFrame; } UInt32 SampleWordSize() const { return (mBytesPerFrame > 0) ? mBytesPerFrame / NumberInterleavedChannels() : 0;} @@ -134,16 +134,16 @@ public: Assert(mBytesPerFrame > 0, "bytesPerFrame must be > 0 in BytesToFrames"); return nbytes / mBytesPerFrame; } - + bool SameChannelsAndInterleaving(const CAStreamBasicDescription &a) const { return this->NumberChannels() == a.NumberChannels() && this->IsInterleaved() == a.IsInterleaved(); } - + // _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ // // manipulation - + void SetCanonical(UInt32 nChannels, bool interleaved) // note: leaves sample rate untouched { @@ -159,7 +159,7 @@ public: mFormatFlags |= kAudioFormatFlagIsNonInterleaved; } } - + void ChangeNumberChannels(UInt32 nChannels, bool interleaved) // alter an existing format { @@ -177,11 +177,11 @@ public: mFormatFlags |= kAudioFormatFlagIsNonInterleaved; } } - + // _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ // // other - + void Print() const { Print (stdout); @@ -189,13 +189,13 @@ public: void Print(FILE* file) const { - PrintFormat (file, "", "AudioStreamBasicDescription:"); + PrintFormat (file, "", "AudioStreamBasicDescription:"); } void PrintFormat(FILE *f, const char *indent, const char *name) const; OSStatus Save(CFPropertyListRef *outData) const; - + OSStatus Restore(CFPropertyListRef &inData); // Operations |