bdab6c12d4
Before this, the mp3 file would be read into the in-memory buffer only when new samples were actually needed. This meant that the time to read mp3 content always counted against the ~22ms audio buffer length. Now, when there's at least 1 full disk block of free space in the input buffer, we can request that the buffer be filled _after_ returning from audiomp3_mp3file_get_buffer and actually filling the DMA pointers. In this way, the time taken for reading MP3 data from flash/SD is less likely to cause an underrun of audio DMA. The existing calls to fill the inbuf remain, but in most cases during streaming these become no-ops because the buffer will be over half full. |
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MP3Decoder.c | ||
MP3Decoder.h | ||
__init__.c | ||
__init__.h |