Converter which converts bits_per_sample, channels and the sample_rate. The conversion is supported both on the input and output side. More...
#include <AudioStreamsConverter.h>
Inheritance diagram for FormatConverterStream:
Public Member Functions | |
| FormatConverterStream (AudioOutput &print) | |
| FormatConverterStream (AudioStream &stream) | |
| FormatConverterStream (Print &print) | |
| FormatConverterStream (Stream &stream) | |
| virtual void | addNotifyAudioChange (AudioInfoSupport &bi) |
| Adds target to be notified about audio changes. | |
| virtual AudioInfo | audioInfo () override |
| provides the actual input AudioInfo | |
| AudioInfo | audioInfoOut () override |
| provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream | |
| int | available () override |
| int | availableForWrite () override |
| bool | begin () override |
| (Re-)Starts the processing: call setAudioInfo and setAudioInfoOut before | |
| bool | begin (AudioInfo from) |
| Starts the processing: call setAudioInfoOut before to define the target. | |
| bool | begin (AudioInfo from, AudioInfo to) |
| virtual void | clearNotifyAudioChange () |
| Deletes all change notify subscriptions. | |
| void | end () override |
| virtual void | flush () override |
| float | getByteFactor () |
| virtual Print * | getPrint () |
| virtual Stream * | getStream () |
| bool | isNotifyActive () |
| Checks if the automatic AudioInfo update is active. | |
| virtual | operator bool () |
| size_t | readBytes (uint8_t *data, size_t len) override |
| virtual size_t | readSilence (uint8_t *buffer, size_t length) |
| Source to generate silence: just sets the buffer to 0. | |
| virtual bool | removeNotifyAudioChange (AudioInfoSupport &bi) |
| Removes a target in order not to be notified about audio changes. | |
| void | setAudioInfo (AudioInfo info) override |
| Defines the input AudioInfo. | |
| void | setAudioInfoOut (AudioInfo to) |
| void | setBuffered (bool active) |
| Buffering is active by default to minimize the number of output calls. | |
| void | setNotifyActive (bool flag) |
| Deactivate/Reactivate automatic AudioInfo updates: (default is active) | |
| void | setOutput (AudioOutput &print) override |
| void | setOutput (Print &print) override |
| Defines/Changes the output target. | |
| void | setStream (AudioStream &io) override |
| void | setStream (Stream &io) override |
| Defines/Changes the input & output. | |
| virtual size_t | write (const uint8_t *data, size_t len) override |
| virtual size_t | write (uint8_t ch) override |
| virtual void | writeSilence (size_t len) |
| Writes len bytes of silence (=0). | |
Protected Member Functions | |
| float | byteFactor () |
| virtual int | not_supported (int out, const char *msg="") |
| void | notifyAudioChange (AudioInfo info) |
| void | refillReadBuffer () |
| void | setupReader () |
Protected Attributes | |
| int | _timeout = 10 |
| ChannelFormatConverterStream | channelFormatConverter |
| AudioInfo | from_cfg |
| AudioInfo | info |
| bool | is_buffered = true |
| bool | is_notify_active = true |
| Vector< AudioInfoSupport * > | notify_vector |
| NumberFormatConverterStream | numberFormatConverter |
| Print * | p_print = nullptr |
| Stream * | p_stream = nullptr |
| TransformationReader< ReformatBaseStream > | reader |
| ResampleStream | sampleRateConverter |
| RingBuffer< uint8_t > | tmp_in {0} |
| RingBuffer< uint8_t > | tmp_out {0} |
| AudioInfo | to_cfg |
Detailed Description
Converter which converts bits_per_sample, channels and the sample_rate. The conversion is supported both on the input and output side.
- Copyright
- GPLv3
Member Function Documentation
◆ byteFactor()
|
inlineprotected |
e.g if we do channels 2->1 we nead to double the input data
- Returns
The documentation for this class was generated from the following file:
- src/AudioTools/CoreAudio/AudioStreamsConverter.h
