arduino-audio-tools
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Class which measures the thruput. More...
#include <AudioStreams.h>
Public Member Functions | |
MeasuringStream (int count=10, Print *logOut=nullptr) | |
MeasuringStream (Print &print, int count=10, Print *logOut=nullptr) | |
MeasuringStream (Stream &stream, int count=10, Print *logOut=nullptr) | |
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 | |
int | available () override |
virtual int | availableForWrite () override |
Provides the nubmer of bytes we can write. | |
bool | begin () |
bool | begin (AudioInfo info) |
int | bytesPerSecond () |
Returns the actual thrughput in bytes per second. | |
virtual void | clearNotifyAudioChange () |
Deletes all change notify subscriptions. | |
virtual void | end () |
virtual void | flush () override |
bool | isNotifyActive () |
Checks if the automatic AudioInfo update is active. | |
virtual | 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 | setAudioInfo (AudioInfo info) |
Defines the input AudioInfo. | |
void | setFrameSize (int size) |
void | setNotifyActive (bool flag) |
Deactivate/Reactivate automatic AudioInfo updates: (default is active) | |
void | setOutput (Print &out) override |
Defines/Changes the output target. | |
void | setReportBytes (bool flag) |
Report in bytes instead of samples. | |
void | setStream (Stream &io) override |
Defines/Changes the input & output. | |
uint32_t | startTime () |
Provides the time when the last measurement was started. | |
virtual size_t | write (const uint8_t *data, size_t len) override |
Writes raw PCM audio data, which will be the input for the volume control. | |
virtual size_t | write (uint8_t ch) override |
virtual void | writeSilence (size_t len) |
Writes len bytes of silence (=0). | |
Protected Member Functions | |
size_t | measure (size_t len) |
virtual int | not_supported (int out, const char *msg="") |
void | notifyAudioChange (AudioInfo info) |
void | printResult () |
void | refillReadBuffer () |
Protected Attributes | |
int | _timeout = 10 |
int | bytes_per_second = 0 |
int | count =0 |
int | frame_size = 0 |
AudioInfo | info |
bool | is_notify_active = true |
int | max_count =0 |
Vector< AudioInfoSupport * > | notify_vector |
NullStream | null |
Print * | p_logout =nullptr |
Print * | p_print =nullptr |
Stream * | p_stream =nullptr |
bool | report_bytes = false |
uint32_t | start_time |
RingBuffer< uint8_t > | tmp_in {0} |
RingBuffer< uint8_t > | tmp_out {0} |
int | total_bytes = 0 |
Class which measures the thruput.