mirror of
https://github.com/ggerganov/whisper.cpp.git
synced 2025-06-12 20:18:08 +00:00
fbead67549
* Fix a typo * Don't allocate output string unless needed * Add methods to output SRT and WebVTT * Add tests for output methods * Make constants for output private * Add signatures for output methods * Add document on output methods * Fix method name: Segment#speaker_next_turn? -> #speacker_turn_next? * Add Whisper::Segment#descotruct_keys * Add test for Whisper::Context#descotruct_keys * Add signature of Whisper::Segment#deconstruct_keys * Use parentheses to suppress warning * Update date
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
#include <ruby.h>
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#include "ruby_whisper.h"
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#include "common-whisper.h"
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#include <string>
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#include <vector>
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern const rb_data_type_t ruby_whisper_type;
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extern const rb_data_type_t ruby_whisper_params_type;
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extern ID id_to_s;
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extern ID id_call;
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extern ID transcribe_option_names[1];
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extern void
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prepare_transcription(ruby_whisper_params * rwp, VALUE * self);
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/*
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* transcribe a single file
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* can emit to a block results
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*
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* params = Whisper::Params.new
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* params.duration = 60_000
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* whisper.transcribe "path/to/audio.wav", params do |text|
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* puts text
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* end
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*
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* call-seq:
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* transcribe(path_to_audio, params) {|text| ...}
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**/
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VALUE
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ruby_whisper_transcribe(int argc, VALUE *argv, VALUE self) {
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ruby_whisper *rw;
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ruby_whisper_params *rwp;
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VALUE wave_file_path, blk, params, kws;
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VALUE opts[1];
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rb_scan_args_kw(RB_SCAN_ARGS_LAST_HASH_KEYWORDS, argc, argv, "2:&", &wave_file_path, ¶ms, &kws, &blk);
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rb_get_kwargs(kws, transcribe_option_names, 0, 1, opts);
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int n_processors = opts[0] == Qundef ? 1 : NUM2INT(opts[0]);
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TypedData_Get_Struct(self, ruby_whisper, &ruby_whisper_type, rw);
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TypedData_Get_Struct(params, ruby_whisper_params, &ruby_whisper_params_type, rwp);
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if (!rb_respond_to(wave_file_path, id_to_s)) {
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rb_raise(rb_eRuntimeError, "Expected file path to wave file");
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}
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std::string fname_inp = StringValueCStr(wave_file_path);
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std::vector<float> pcmf32; // mono-channel F32 PCM
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std::vector<std::vector<float>> pcmf32s; // stereo-channel F32 PCM
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if (!read_audio_data(fname_inp, pcmf32, pcmf32s, rwp->diarize)) {
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fprintf(stderr, "error: failed to open '%s' as WAV file\n", fname_inp.c_str());
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return self;
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}
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// Commented out because it is work in progress
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// {
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// static bool is_aborted = false; // NOTE: this should be atomic to avoid data race
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// rwp->params.encoder_begin_callback = [](struct whisper_context * /*ctx*/, struct whisper_state * /*state*/, void * user_data) {
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// bool is_aborted = *(bool*)user_data;
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// return !is_aborted;
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// };
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// rwp->params.encoder_begin_callback_user_data = &is_aborted;
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// }
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prepare_transcription(rwp, &self);
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if (whisper_full_parallel(rw->context, rwp->params, pcmf32.data(), pcmf32.size(), n_processors) != 0) {
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fprintf(stderr, "failed to process audio\n");
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return self;
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}
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if (NIL_P(blk)) {
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return self;
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}
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const int n_segments = whisper_full_n_segments(rw->context);
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VALUE output = rb_str_new2("");
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for (int i = 0; i < n_segments; ++i) {
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const char * text = whisper_full_get_segment_text(rw->context, i);
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output = rb_str_concat(output, rb_str_new2(text));
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}
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rb_funcall(blk, id_call, 1, output);
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return self;
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}
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#ifdef __cplusplus
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}
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#endif
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