264 lines
9.7 KiB
C++
264 lines
9.7 KiB
C++
|
////////////////////////////////////////////////////////////
|
||
|
|
//
|
||
|
|
// SFML - Simple and Fast Multimedia Library
|
||
|
|
// Copyright (C) 2007-2018 Laurent Gomila (laurent@sfml-dev.org)
|
||
|
|
//
|
||
|
|
// This software is provided 'as-is', without any express or implied warranty.
|
||
|
|
// In no event will the authors be held liable for any damages arising from the use of this software.
|
||
|
|
//
|
||
|
|
// Permission is granted to anyone to use this software for any purpose,
|
||
|
|
// including commercial applications, and to alter it and redistribute it freely,
|
||
|
|
// subject to the following restrictions:
|
||
|
|
//
|
||
|
|
// 1. The origin of this software must not be misrepresented;
|
||
|
|
// you must not claim that you wrote the original software.
|
||
|
|
// If you use this software in a product, an acknowledgment
|
||
|
|
// in the product documentation would be appreciated but is not required.
|
||
|
|
//
|
||
|
|
// 2. Altered source versions must be plainly marked as such,
|
||
|
|
// and must not be misrepresented as being the original software.
|
||
|
|
//
|
||
|
|
// 3. This notice may not be removed or altered from any source distribution.
|
||
|
|
//
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
|
||
|
|
#ifndef SFML_INPUTSOUNDFILE_HPP
|
||
|
|
#define SFML_INPUTSOUNDFILE_HPP
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
// Headers
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
#include <SFML/Audio/Export.hpp>
|
||
|
|
#include <SFML/System/NonCopyable.hpp>
|
||
|
|
#include <SFML/System/Time.hpp>
|
||
|
|
#include <string>
|
||
|
|
#include <algorithm>
|
||
|
|
|
||
|
|
|
||
|
|
namespace sf
|
||
|
|
{
|
||
|
|
class InputStream;
|
||
|
|
class SoundFileReader;
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Provide read access to sound files
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
class SFML_AUDIO_API InputSoundFile : NonCopyable
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Default constructor
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
InputSoundFile();
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Destructor
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
~InputSoundFile();
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Open a sound file from the disk for reading
|
||
|
|
///
|
||
|
|
/// The supported audio formats are: WAV (PCM only), OGG/Vorbis, FLAC.
|
||
|
|
/// The supported sample sizes for FLAC and WAV are 8, 16, 24 and 32 bit.
|
||
|
|
///
|
||
|
|
/// \param filename Path of the sound file to load
|
||
|
|
///
|
||
|
|
/// \return True if the file was successfully opened
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
bool openFromFile(const std::string& filename);
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Open a sound file in memory for reading
|
||
|
|
///
|
||
|
|
/// The supported audio formats are: WAV (PCM only), OGG/Vorbis, FLAC.
|
||
|
|
/// The supported sample sizes for FLAC and WAV are 8, 16, 24 and 32 bit.
|
||
|
|
///
|
||
|
|
/// \param data Pointer to the file data in memory
|
||
|
|
/// \param sizeInBytes Size of the data to load, in bytes
|
||
|
|
///
|
||
|
|
/// \return True if the file was successfully opened
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
bool openFromMemory(const void* data, std::size_t sizeInBytes);
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Open a sound file from a custom stream for reading
|
||
|
|
///
|
||
|
|
/// The supported audio formats are: WAV (PCM only), OGG/Vorbis, FLAC.
|
||
|
|
/// The supported sample sizes for FLAC and WAV are 8, 16, 24 and 32 bit.
|
||
|
|
///
|
||
|
|
/// \param stream Source stream to read from
|
||
|
|
///
|
||
|
|
/// \return True if the file was successfully opened
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
bool openFromStream(InputStream& stream);
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Get the total number of audio samples in the file
|
||
|
|
///
|
||
|
|
/// \return Number of samples
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
Uint64 getSampleCount() const;
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Get the number of channels used by the sound
|
||
|
|
///
|
||
|
|
/// \return Number of channels (1 = mono, 2 = stereo)
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
unsigned int getChannelCount() const;
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Get the sample rate of the sound
|
||
|
|
///
|
||
|
|
/// \return Sample rate, in samples per second
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
unsigned int getSampleRate() const;
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Get the total duration of the sound file
|
||
|
|
///
|
||
|
|
/// This function is provided for convenience, the duration is
|
||
|
|
/// deduced from the other sound file attributes.
|
||
|
|
///
|
||
|
|
/// \return Duration of the sound file
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
Time getDuration() const;
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Get the read offset of the file in time
|
||
|
|
///
|
||
|
|
/// \return Time position
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
Time getTimeOffset() const;
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Get the read offset of the file in samples
|
||
|
|
///
|
||
|
|
/// \return Sample position
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
Uint64 getSampleOffset() const;
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Change the current read position to the given sample offset
|
||
|
|
///
|
||
|
|
/// This function takes a sample offset to provide maximum
|
||
|
|
/// precision. If you need to jump to a given time, use the
|
||
|
|
/// other overload.
|
||
|
|
///
|
||
|
|
/// The sample offset takes the channels into account.
|
||
|
|
/// If you have a time offset instead, you can easily find
|
||
|
|
/// the corresponding sample offset with the following formula:
|
||
|
|
/// `timeInSeconds * sampleRate * channelCount`
|
||
|
|
/// If the given offset exceeds to total number of samples,
|
||
|
|
/// this function jumps to the end of the sound file.
|
||
|
|
///
|
||
|
|
/// \param sampleOffset Index of the sample to jump to, relative to the beginning
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
void seek(Uint64 sampleOffset);
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Change the current read position to the given time offset
|
||
|
|
///
|
||
|
|
/// Using a time offset is handy but imprecise. If you need an accurate
|
||
|
|
/// result, consider using the overload which takes a sample offset.
|
||
|
|
///
|
||
|
|
/// If the given time exceeds to total duration, this function jumps
|
||
|
|
/// to the end of the sound file.
|
||
|
|
///
|
||
|
|
/// \param timeOffset Time to jump to, relative to the beginning
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
void seek(Time timeOffset);
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Read audio samples from the open file
|
||
|
|
///
|
||
|
|
/// \param samples Pointer to the sample array to fill
|
||
|
|
/// \param maxCount Maximum number of samples to read
|
||
|
|
///
|
||
|
|
/// \return Number of samples actually read (may be less than \a maxCount)
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
Uint64 read(Int16* samples, Uint64 maxCount);
|
||
|
|
|
||
|
|
private:
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \brief Close the current file
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
void close();
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
// Member data
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
SoundFileReader* m_reader; ///< Reader that handles I/O on the file's format
|
||
|
|
InputStream* m_stream; ///< Input stream used to access the file's data
|
||
|
|
bool m_streamOwned; ///< Is the stream internal or external?
|
||
|
|
Uint64 m_sampleOffset; ///< Sample Read Position
|
||
|
|
Uint64 m_sampleCount; ///< Total number of samples in the file
|
||
|
|
unsigned int m_channelCount; ///< Number of channels of the sound
|
||
|
|
unsigned int m_sampleRate; ///< Number of samples per second
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace sf
|
||
|
|
|
||
|
|
|
||
|
|
#endif // SFML_INPUTSOUNDFILE_HPP
|
||
|
|
|
||
|
|
|
||
|
|
////////////////////////////////////////////////////////////
|
||
|
|
/// \class sf::InputSoundFile
|
||
|
|
/// \ingroup audio
|
||
|
|
///
|
||
|
|
/// This class decodes audio samples from a sound file. It is
|
||
|
|
/// used internally by higher-level classes such as sf::SoundBuffer
|
||
|
|
/// and sf::Music, but can also be useful if you want to process
|
||
|
|
/// or analyze audio files without playing them, or if you want to
|
||
|
|
/// implement your own version of sf::Music with more specific
|
||
|
|
/// features.
|
||
|
|
///
|
||
|
|
/// Usage example:
|
||
|
|
/// \code
|
||
|
|
/// // Open a sound file
|
||
|
|
/// sf::InputSoundFile file;
|
||
|
|
/// if (!file.openFromFile("music.ogg"))
|
||
|
|
/// /* error */;
|
||
|
|
///
|
||
|
|
/// // Print the sound attributes
|
||
|
|
/// std::cout << "duration: " << file.getDuration().asSeconds() << std::endl;
|
||
|
|
/// std::cout << "channels: " << file.getChannelCount() << std::endl;
|
||
|
|
/// std::cout << "sample rate: " << file.getSampleRate() << std::endl;
|
||
|
|
/// std::cout << "sample count: " << file.getSampleCount() << std::endl;
|
||
|
|
///
|
||
|
|
/// // Read and process batches of samples until the end of file is reached
|
||
|
|
/// sf::Int16 samples[1024];
|
||
|
|
/// sf::Uint64 count;
|
||
|
|
/// do
|
||
|
|
/// {
|
||
|
|
/// count = file.read(samples, 1024);
|
||
|
|
///
|
||
|
|
/// // process, analyze, play, convert, or whatever
|
||
|
|
/// // you want to do with the samples...
|
||
|
|
/// }
|
||
|
|
/// while (count > 0);
|
||
|
|
/// \endcode
|
||
|
|
///
|
||
|
|
/// \see sf::SoundFileReader, sf::OutputSoundFile
|
||
|
|
///
|
||
|
|
////////////////////////////////////////////////////////////
|