#include <AUD_ReverseReader.h>
Public Member Functions | |
| AUD_ReverseReader (AUD_IReader *reader) | |
| virtual void | seek (int position) |
| virtual int | getLength () const |
| virtual int | getPosition () const |
| virtual void | read (int &length, sample_t *&buffer) |
Detailed Description
This class reads another reader from back to front.
- Note:
- The underlying reader must be a buffer.
Definition at line 42 of file AUD_ReverseReader.h.
Constructor & Destructor Documentation
| AUD_ReverseReader::AUD_ReverseReader | ( | AUD_IReader * | reader | ) |
Creates a new reverse reader.
- Parameters:
-
reader The reader to read from.
- Exceptions:
-
AUD_Exception Thrown if the reader specified has an undeterminable/infinite length or is not seekable.
Definition at line 39 of file AUD_ReverseReader.cpp.
References AUD_ERROR_PROPS, AUD_THROW, AUD_EffectReader::isSeekable(), and props_error.
Member Function Documentation
| int AUD_ReverseReader::getLength | ( | ) | const [virtual] |
Returns an approximated length of the source in samples. For readers of the type buffer this has to return a correct value!
- Returns:
- The length as sample count. May be negative if unknown.
- See also:
- getType
Reimplemented from AUD_EffectReader.
Definition at line 53 of file AUD_ReverseReader.cpp.
| int AUD_ReverseReader::getPosition | ( | ) | const [virtual] |
Returns the position of the source as a sample count value.
- Returns:
- The current position in the source. A negative value indicates that the position is unknown.
- Warning:
- The value returned doesn't always have to be correct for readers of the stream type, especially after seeking, it must though for the buffer ones.
- See also:
- getType
Reimplemented from AUD_EffectReader.
Definition at line 58 of file AUD_ReverseReader.cpp.
| void AUD_ReverseReader::read | ( | int & | length, |
| sample_t *& | buffer | ||
| ) | [virtual] |
Request to read the next length samples out of the source. The buffer for reading has to stay valid until the next call of this method or until the reader is deleted.
- Parameters:
-
[in,out] length The count of samples that should be read. Shall contain the real count of samples after reading, in case there were only fewer samples available. A smaller value also indicates the end of the reader. [out] buffer The pointer to the buffer with the samples.
Reimplemented from AUD_EffectReader.
Definition at line 63 of file AUD_ReverseReader.cpp.
References AUD_SAMPLE_SIZE, AUD_Specs::channels, AUD_Buffer::getBuffer(), AUD_Buffer::getSize(), AUD_EffectReader::getSpecs(), i, length(), AUD_EffectReader::m_reader, AUD_IReader::read(), AUD_Buffer::resize(), and AUD_IReader::seek().
| void AUD_ReverseReader::seek | ( | int | position | ) | [virtual] |
Seeks to a specific position in the source. This function must work for buffer type readers.
- Parameters:
-
position The position to seek for measured in samples. To get from a given time to the samples you simply have to multiply the time value in seconds with the sample rate of the reader.
- Warning:
- This may work or not, depending on the actual reader.
- See also:
- getType
Reimplemented from AUD_EffectReader.
Definition at line 48 of file AUD_ReverseReader.cpp.
The documentation for this class was generated from the following files: