You are using staging server - a separate instance of the ESP Component Registry that allows you to try distribution tools and processes without affecting the real registry.
esp_gmf_io_codec_dev_set_dev
API to set the audio codec device handleesp_gmf_io_http_set_event_callback
API to set an HTTP event callbackio
prefixembed_flash
to embed
esp_codec_dev
gmf_io
esp-gmf-io
idf.py add-dependency "jason-mao/gmf_io^0.7.0"