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#ifndef __ctc_prefix_decoder_h_
#define __ctc_prefix_decoder_h_

#include <cuda_runtime.h>
#include <cstdint>
#include <tuple>
#include <vector>
namespace cu_ctc {

struct InternalData;
std::uintptr_t prefixCTC_alloc(std::uintptr_t stream_ptr);
void prefixCTC_free(std::uintptr_t inter_data_ptr);

std::tuple<size_t, int> calculate_require_buff_and_init_internal_data(
    InternalData* inter_data,
    int batch_size,
    int seq_len,
    int vocab_size,
    int beam,
    std::uintptr_t buff_ptr,
    size_t buff_size,
    float* log_prob_data_ptr,
    int* original_lens,
    const std::vector<int>& prob_sizes,
    const std::vector<int>& prob_strides,
    int blid,
    float threshold);
int ctc_beam_search_decoder_batch_gpu(
    InternalData* inter_data,
    int blid,
    int spid,
    int* clist,
    int* clen,
    float* score);

} // namespace cu_ctc

#endif
