ESP-GMF-Audio

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ESP GMF Audio is a collection of GMF elements related to audio processing, including audio encoding, decoding, and audio effect processing algorithms. The currently supported audio modules are listed in the table below.

Name	Function	Method	Input Port	Output Port	Input blocking time	Output blocking time	Dependent on Audio Information
AUDIO_DEC	Audio decoder: MP3,AAC,AMRNB, AMRWB,FLAC,WAV,M4A,TS	Nil	Single	Single	User configurable, default value is maximum delay	User configurable, default value is maximum delay	No
AUDIO_ENC	Audio encoder: AAC,AMRNB,AMRWB, ADPCM,OPUS,PCM	Nil	Single	Single	User configurable, default value is maximum delay	User configurable, default value is maximum delay	Yes
RATE_CVT	Audio sampling rate adjustment	`set_dest_rate`	Single	Single	Maximum delay	Maximum delay	Yes
BIT_CVT	Audio bit-depth conversion	`set_dest_bits`	Single	Single	Maximum delay	Maximum delay	Yes
CH_CVT	Audio channel conversion	`set_dest_ch`	Single	Single	Maximum delay	Maximum delay	Yes
ALC	Audio volume adjustment	`set_gain` `get_gain`	Single	Single	Maximum delay	Maximum delay	Yes
EQ	Audio equalizer adjustment	`set_para` `get_para` `enable_filter` `disable_filter`	Single	Single	Maximum delay	Maximum delay	Yes
FADE	Audio fade-in and fade-out effects	`set_mode` `get_mode` `reset_weight`	Single	Single	Maximum delay	Maximum delay	Yes
SONIC	Audio pitch and speed shifting effects	`set_speed` `get_speed` `set_pitch` `get_pitch`	Single	Single	Maximum delay	Maximum delay	Yes
MIXER	Audio mixing effects	`set_info` `set_mode`	Multiple	Single	The blocking time for the first channel is 0, while the blocking time for other channels is maximum delay	Maximum delay	No
INTERLEAVE	Data interleaving	Nil	Multiple	Single	User configurable, default value is maximum delay	Maximum delay	Yes
DEINTERLEAVE	Data de-interleaving	Nil	Single	Multiple	Maximum delay	User configurable, default value is maximum delay	Yes

Usage

The ESP GMF Audio is often used in combination to form a pipeline. For example code, please refer to test_app。

espressif/gmf_audio

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ESP-GMF-Audio

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Supports all targets

License: Custom

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