arduino-audio-tools
|
MP3 Decoder using libhelix: https://github.com/pschatzmann/arduino-libhelix This is basically just a simple wrapper to provide AudioInfo and AudioInfoSupport. More...
#include <CodecMP3Helix.h>
Public Member Functions | |
MP3DecoderHelix (Print &out_stream) | |
Construct a new MP3DecoderMini object. More... | |
MP3DecoderHelix (Print &out_stream, AudioInfoSupport &bi) | |
Construct a new MP3DecoderMini object. The decoded output will go to the print object. More... | |
~MP3DecoderHelix () | |
Destroy the MP3DecoderMini object. | |
AudioInfo | audioInfo () |
MP3FrameInfo | audioInfoEx () |
void | begin () |
Starts the processing. | |
virtual void | begin (AudioInfo info) |
libhelix::MP3DecoderHelix * | driver () |
void | end () |
Releases the reserved memory. | |
bool | isFilterMetaData () |
Check if the metadata filter is active. | |
virtual bool | isResultPCM () |
If true, the decoding result is PCM data. | |
size_t | maxFrameSize () |
Provides the maximum frame size - this is allocated on the heap and you can reduce the heap size my minimizing this value. | |
size_t | maxPCMSize () |
Provides the maximum pwm buffer size - this is allocated on the heap and you can reduce the heap size my minimizing this value. | |
operator bool () | |
checks if the class is active | |
virtual void | setAudioInfo (AudioInfo from) override |
for most decoders this is not needed | |
void | setFilterMetaData (bool filter) |
Activates a filter that makes sure that helix does not get any metadata segments. | |
void | setMaxFrameSize (size_t len) |
Define your optimized maximum frame size. | |
void | setMaxPCMSize (size_t len) |
Define your optimized maximum pwm buffer size. | |
void | setNotifyAudioChange (AudioInfoSupport &bi) |
Defines the callback object to which the Audio information change is provided. | |
virtual void | setOutput (AudioOutput &out_stream) |
Defines where the decoded result is written to. | |
virtual void | setOutput (AudioStream &out_stream) |
Defines where the decoded result is written to. | |
virtual void | setOutput (Print &outStream) |
Defines the output Stream. | |
size_t | write (const void *mp3Data, size_t len) |
Write mp3 data to decoder. | |
Static Public Member Functions | |
static void | infoCallback (MP3FrameInfo &i, void *ref) |
notifies the subscriber about a change | |
Protected Member Functions | |
void | writeBlocking (Print *out, uint8_t *data, size_t len) |
Protected Attributes | |
AudioInfoSupport * | audioChangeMP3Helix =nullptr |
MetaDataFilter< libhelix::MP3DecoderHelix > | filter |
AudioInfo | info |
libhelix::MP3DecoderHelix * | mp3 =nullptr |
AudioInfoSupport * | p_notify = nullptr |
Print * | p_print = nullptr |
bool | use_filter = false |
MP3 Decoder using libhelix: https://github.com/pschatzmann/arduino-libhelix This is basically just a simple wrapper to provide AudioInfo and AudioInfoSupport.
|
inline |
Construct a new MP3DecoderMini object.
out_stream |
|
inline |
Construct a new MP3DecoderMini object. The decoded output will go to the print object.
out_stream | |
bi |