33 lines
974 B
C
33 lines
974 B
C
/*
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Interface to Namco G.722.1 decoder
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*/
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#ifndef _G7221_DECODER_LIB_H
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#define _G7221_DECODER_LIB_H
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#include <stdint.h>
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/* forward definition for the opaque handle object */
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typedef struct g7221_handle g7221_handle;
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/* return a handle for decoding on successful init, NULL on failure */
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g7221_handle* g7221_init(int bytes_per_frame);
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/* decode a frame, at code_words, into 16-bit PCM in sample_buffer. returns <0 on error */
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int g7221_decode_frame(g7221_handle* handle, uint8_t* data, int16_t* out_samples);
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#if 0
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/* decodes an empty frame after no more data is found (may be used to "drain" window samples */
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int g7221_decode_empty(g7221_handle* handle, int16_t* out_samples);
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#endif
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/* reset the decoder to its initial state */
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void g7221_reset(g7221_handle* handle);
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/* free resources */
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void g7221_free(g7221_handle* handle);
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/* set new key (ignores key on failure). returns <0 on error */
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int g7221_set_key(g7221_handle* handle, const uint8_t* key);
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#endif
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