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Om
1.0.0
A universal framework for multimedia simulation
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A class that handles streaming decoding of the PCM AIFF audio format. More...
#include <omSoundAIFFDecoder.h>
Public Member Functions | |
| AIFFDecoder (DataInputStream *aiffStream) | |
| Create a new AIFF decoder that is decoding from the specified data input stream. More... | |
| ~AIFFDecoder () | |
| Release all resources associated with this AIFFDecoder object. More... | |
| SoundSize | getLengthInSamples () const |
| Get the length in samples of the AIFF file that is being decoded. More... | |
| Double | getLengthInSeconds () const |
| Get the length in seconds of the AIFF file that is being decoded. More... | |
| SampleIndex | getCurrentSampleIndex () const |
| Get the index of the sample currently being read from the AIFF file. More... | |
| Double | getCurrentTime () const |
| Get the time in seconds within the AIFF file of the current read position of this decoder. More... | |
| virtual Bool | canSeek () const |
| Return whether or not seeking is allowed in this input stream. More... | |
| virtual Bool | canSeek (Int64 relativeSampleOffset) const |
| Return whether or not this input stream's current position can be moved by the specified signed sample offset. More... | |
| virtual Int64 | seek (Int64 relativeSampleOffset) |
| Move the current sample frame position in the stream by the specified signed amount. More... | |
| virtual SoundSize | getSamplesRemaining () const |
| Return the number of samples remaining in the sound input stream. More... | |
| virtual SampleIndex | getPosition () const |
| Return the current position of the stream within itself. More... | |
| virtual Size | getChannelCount () const |
| Return the number of channels that are in the sound input stream. More... | |
| virtual SampleRate | getSampleRate () const |
| Return the sample rate of the sound input stream's source audio data. More... | |
| virtual SampleType | getNativeSampleType () const |
| Return the actual sample type used in the stream. More... | |
| Bool | isValid () const |
| Return whether or not this AIFF decoder is reading a valid AIFF file. More... | |
 Public Member Functions inherited from om::sound::base::SoundInputStream | |
| virtual | ~SoundInputStream () |
| Destroy this sound input stream and release any resources associated with it. More... | |
| SoundResult | read (SoundBuffer &buffer, Size numSamples) |
| Read the specified number of samples from the input stream into a sound buffer. More... | |
| Bool | hasSamplesRemaining () const |
| Return whether or not this sound input stream has any samples remaining in the stream. More... | |
Additional Inherited Members |
A class that handles streaming decoding of the PCM AIFF audio format.
This class uses an abstract data stream for input, allowing it to decode .AIFF data from a file, network source, or other source.
| om::sound::io::AIFFDecoder::AIFFDecoder | ( | DataInputStream * | aiffStream | ) |
Create a new AIFF decoder that is decoding from the specified data input stream.
The stream must already be open for reading and should point to the first byte of the aiff file information. Otherwise, reading from the AIFF file will fail.
| om::sound::io::AIFFDecoder::~AIFFDecoder | ( | ) |
Release all resources associated with this AIFFDecoder object.
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Get the length in samples of the AIFF file that is being decoded.
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Get the length in seconds of the AIFF file that is being decoded.
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Get the index of the sample currently being read from the AIFF file.
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Get the time in seconds within the AIFF file of the current read position of this decoder.
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Return whether or not seeking is allowed in this input stream.
Reimplemented from om::sound::base::SoundInputStream.
Return whether or not this input stream's current position can be moved by the specified signed sample offset.
This sample offset is specified as the number of sample frames to move in the stream - a frame is equal to one sample for each channel in the stream.
Reimplemented from om::sound::base::SoundInputStream.
Move the current sample frame position in the stream by the specified signed amount.
This method attempts to seek the position in the stream by the specified amount. The method returns the signed amount that the position in the stream was changed by. Thus, if seeking is not allowed, 0 is returned. Otherwise, the stream should seek as far as possible in the specified direction and return the actual change in position.
Reimplemented from om::sound::base::SoundInputStream.
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Return the number of samples remaining in the sound input stream.
The value returned must only be a lower bound on the total number of sample frames in the stream. For instance, if there are samples remaining, the method should return at least 1. If there are no samples remaining, the method should return 0.
Implements om::sound::base::SoundInputStream.
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Return the current position of the stream within itself.
The returned value indicates the sample index of the current read position within the sound stream. For unbounded streams, this indicates the number of samples that have been read by the stream since it was opened.
Implements om::sound::base::SoundInputStream.
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Return the number of channels that are in the sound input stream.
This is the number of channels that will be read with each read call to the stream's read method.
Implements om::sound::base::SoundInputStream.
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Return the sample rate of the sound input stream's source audio data.
Since some types of streams support variable sampling rates, this value is not necessarily the sample rate of all audio that is read from the stream. However, for most streams, this value represents the sample rate of the entire stream. One should always test the sample rate of the buffers returned by the stream to see what their sample rates are before doing any operations that assume a sampling rate.
Implements om::sound::base::SoundInputStream.
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Return the actual sample type used in the stream.
This is the format of the stream's source data. For instance, a file might be encoded with 8-bit, 16-bit or 24-bit samples. This value indicates that sample type. For formats that don't have a native sample type, such as those which use frequency domain encoding, this function should return SampleType::SAMPLE_32F, indicating that the stream's native format is 32-bit floating point samples.
Implements om::sound::base::SoundInputStream.
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Return whether or not this AIFF decoder is reading a valid AIFF file.
Implements om::sound::base::SoundInputStream.
1.8.11
