MixerStream is mixing the input from Multiple Input Streams. All streams must have the same audo format (sample rate, channels, bits per sample). More...
#include <AudioStreams.h>
Inheritance diagram for InputMixer< T >:
Public Member Functions | |
| void | add (Stream &in, int weight=100) |
| Adds a new input stream. | |
| virtual void | addNotifyAudioChange (AudioInfoSupport &bi) |
| Adds target to be notified about audio changes. | |
| virtual AudioInfo | audioInfo () override |
| provides the actual input AudioInfo | |
| virtual AudioInfo | audioInfoOut () |
| provides the actual output AudioInfo: this is usually the same as audioInfo() unless we use a transforming stream | |
| virtual int | available () override |
| virtual int | availableForWrite () override |
| virtual bool | begin () |
| virtual bool | begin (AudioInfo info) |
| virtual void | clearNotifyAudioChange () |
| Deletes all change notify subscriptions. | |
| void | end () override |
| Remove all input streams. | |
| virtual void | flush () override |
| bool | isNotifyActive () |
| Checks if the automatic AudioInfo update is active. | |
| operator bool () | |
| size_t | readBytes (uint8_t *data, size_t len) override |
| Provides the data from all streams mixed together. | |
| 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 | set (int channel, Stream &in) |
| Replaces a stream at the indicated channel. | |
| virtual void | setAudioInfo (AudioInfo newInfo) override |
| Defines the input AudioInfo. | |
| void | setLimitToAvailableData (bool flag) |
| Limit the copy to the available data of all streams: stops to provide data when any stream has ended. | |
| void | setNotifyActive (bool flag) |
| Deactivate/Reactivate automatic AudioInfo updates: (default is active) | |
| void | setRetryCount (int retry) |
| Defines the maximum number of retrys to get data from an input before we abort the read and provide empty data. | |
| void | setWeight (int channel, int weight) |
| Dynamically update the new weight for the indicated channel: If you set it to 0 it is muted (and the stream is not read any more). We recommend to use values between 1 and 100. | |
| int | size () |
| Number of stremams to which are mixed together. | |
| virtual size_t | write (const uint8_t *buffer, size_t size) override |
| virtual size_t | write (uint8_t ch) override |
| virtual void | writeSilence (size_t len) |
| Writes len bytes of silence (=0). | |
Protected Member Functions | |
| int | availableBytes () |
| Provides the available bytes from the first stream with data. | |
| virtual int | not_supported (int out, const char *msg="") |
| void | notifyAudioChange (AudioInfo info) |
| int | readBytesVector (T *p_data, int byteCount) |
| mixing using a vector of samples | |
| void | refillReadBuffer () |
| void | resultAdd (float fact) |
| void | resultClear () |
Protected Attributes | |
| int | _timeout = 10 |
| Vector< T > | current_vect |
| int | frame_size = 4 |
| AudioInfo | info |
| bool | is_notify_active = true |
| bool | limit_available_data = false |
| Vector< AudioInfoSupport * > | notify_vector |
| Vector< int > | result_vect |
| int | retry_count = 5 |
| Vector< Stream * > | streams {0} |
| RingBuffer< uint8_t > | tmp_in {0} |
| RingBuffer< uint8_t > | tmp_out {0} |
| int | total_weights = 0 |
| Vector< int > | weights {0} |
Detailed Description
template<typename T>
class audio_tools::InputMixer< T >
MixerStream is mixing the input from Multiple Input Streams. All streams must have the same audo format (sample rate, channels, bits per sample).
- Copyright
- GPLv3
The documentation for this class was generated from the following file:
- src/AudioTools/AudioStreams.h
