--- /dev/null
+#include <ruby.h>
+#include "ruby_whisper.h"
+#define DR_WAV_IMPLEMENTATION
+#include "dr_wav.h"
+#include <cmath>
+#include <fstream>
+#include <cstdio>
+#include <string>
+#include <thread>
+#include <vector>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define BOOL_PARAMS_SETTER(self, prop, value) \
+ ruby_whisper_params *rwp; \
+ Data_Get_Struct(self, ruby_whisper_params, rwp); \
+ if (value == Qfalse || value == Qnil) { \
+ rwp->params.prop = false; \
+ } else { \
+ rwp->params.prop = true; \
+ } \
+ return value; \
+
+#define BOOL_PARAMS_GETTER(self, prop) \
+ ruby_whisper_params *rwp; \
+ Data_Get_Struct(self, ruby_whisper_params, rwp); \
+ if (rwp->params.prop) { \
+ return Qtrue; \
+ } else { \
+ return Qfalse; \
+ }
+
+VALUE mWhisper;
+VALUE cContext;
+VALUE cParams;
+
+static void ruby_whisper_free(ruby_whisper *rw) {
+ if (rw->context) {
+ whisper_free(rw->context);
+ rw->context = NULL;
+ }
+}
+static void ruby_whisper_params_free(ruby_whisper_params *rwp) {
+}
+
+void rb_whisper_mark(ruby_whisper *rw) {
+ // call rb_gc_mark on any ruby references in rw
+}
+
+void rb_whisper_free(ruby_whisper *rw) {
+ ruby_whisper_free(rw);
+ free(rw);
+}
+
+void rb_whisper_params_mark(ruby_whisper_params *rwp) {
+}
+
+void rb_whisper_params_free(ruby_whisper_params *rwp) {
+ ruby_whisper_params_free(rwp);
+ free(rwp);
+}
+
+static VALUE ruby_whisper_allocate(VALUE klass) {
+ ruby_whisper *rw;
+ rw = ALLOC(ruby_whisper);
+ rw->context = NULL;
+ return Data_Wrap_Struct(klass, rb_whisper_mark, rb_whisper_free, rw);
+}
+
+static VALUE ruby_whisper_params_allocate(VALUE klass) {
+ ruby_whisper_params *rwp;
+ rwp = ALLOC(ruby_whisper_params);
+ rwp->params = whisper_full_default_params(WHISPER_SAMPLING_GREEDY);
+ return Data_Wrap_Struct(klass, rb_whisper_params_mark, rb_whisper_params_free, rwp);
+}
+
+static VALUE ruby_whisper_initialize(int argc, VALUE *argv, VALUE self) {
+ ruby_whisper *rw;
+ VALUE whisper_model_file_path;
+
+ // TODO: we can support init from buffer here too maybe another ruby object to expose
+ rb_scan_args(argc, argv, "01", &whisper_model_file_path);
+ Data_Get_Struct(self, ruby_whisper, rw);
+
+ if (!rb_respond_to(whisper_model_file_path, rb_intern("to_s"))) {
+ rb_raise(rb_eRuntimeError, "Expected file path to model to initialize Whisper::Context");
+ }
+ rw->context = whisper_init_from_file(StringValueCStr(whisper_model_file_path));
+ if (rw->context == nullptr) {
+ rb_raise(rb_eRuntimeError, "error: failed to initialize whisper context");
+ }
+ return self;
+}
+
+/*
+ * transcribe a single file
+ * can emit to a block results
+ *
+ **/
+static VALUE ruby_whisper_transcribe(int argc, VALUE *argv, VALUE self) {
+ ruby_whisper *rw;
+ ruby_whisper_params *rwp;
+ VALUE wave_file_path, blk, params;
+
+ rb_scan_args(argc, argv, "02&", &wave_file_path, ¶ms, &blk);
+ Data_Get_Struct(self, ruby_whisper, rw);
+ Data_Get_Struct(params, ruby_whisper_params, rwp);
+
+ if (!rb_respond_to(wave_file_path, rb_intern("to_s"))) {
+ rb_raise(rb_eRuntimeError, "Expected file path to wave file");
+ }
+
+ std::string fname_inp = StringValueCStr(wave_file_path);
+
+ std::vector<float> pcmf32; // mono-channel F32 PCM
+ std::vector<std::vector<float>> pcmf32s; // stereo-channel F32 PCM
+
+ // WAV input - this is directly from main.cpp example
+ {
+ drwav wav;
+ std::vector<uint8_t> wav_data; // used for pipe input from stdin
+
+ if (fname_inp == "-") {
+ {
+ uint8_t buf[1024];
+ while (true) {
+ const size_t n = fread(buf, 1, sizeof(buf), stdin);
+ if (n == 0) {
+ break;
+ }
+ wav_data.insert(wav_data.end(), buf, buf + n);
+ }
+ }
+
+ if (drwav_init_memory(&wav, wav_data.data(), wav_data.size(), nullptr) == false) {
+ fprintf(stderr, "error: failed to open WAV file from stdin\n");
+ return self;
+ }
+
+ fprintf(stderr, "%s: read %zu bytes from stdin\n", __func__, wav_data.size());
+ } else if (drwav_init_file(&wav, fname_inp.c_str(), nullptr) == false) {
+ fprintf(stderr, "error: failed to open '%s' as WAV file\n", fname_inp.c_str());
+ return self;
+ }
+
+ if (wav.channels != 1 && wav.channels != 2) {
+ fprintf(stderr, "WAV file '%s' must be mono or stereo\n", fname_inp.c_str());
+ return self;
+ }
+
+ if (rwp->diarize && wav.channels != 2 && rwp->params.print_timestamps == false) {
+ fprintf(stderr, "WAV file '%s' must be stereo for diarization and timestamps have to be enabled\n", fname_inp.c_str());
+ return self;
+ }
+
+ if (wav.sampleRate != WHISPER_SAMPLE_RATE) {
+ fprintf(stderr, "WAV file '%s' must be %i kHz\n", fname_inp.c_str(), WHISPER_SAMPLE_RATE/1000);
+ return self;
+ }
+
+ if (wav.bitsPerSample != 16) {
+ fprintf(stderr, "WAV file '%s' must be 16-bit\n", fname_inp.c_str());
+ return self;
+ }
+
+ const uint64_t n = wav_data.empty() ? wav.totalPCMFrameCount : wav_data.size()/(wav.channels*wav.bitsPerSample/8);
+
+ std::vector<int16_t> pcm16;
+ pcm16.resize(n*wav.channels);
+ drwav_read_pcm_frames_s16(&wav, n, pcm16.data());
+ drwav_uninit(&wav);
+
+ // convert to mono, float
+ pcmf32.resize(n);
+ if (wav.channels == 1) {
+ for (uint64_t i = 0; i < n; i++) {
+ pcmf32[i] = float(pcm16[i])/32768.0f;
+ }
+ } else {
+ for (uint64_t i = 0; i < n; i++) {
+ pcmf32[i] = float(pcm16[2*i] + pcm16[2*i + 1])/65536.0f;
+ }
+ }
+
+ if (rwp->diarize) {
+ // convert to stereo, float
+ pcmf32s.resize(2);
+
+ pcmf32s[0].resize(n);
+ pcmf32s[1].resize(n);
+ for (uint64_t i = 0; i < n; i++) {
+ pcmf32s[0][i] = float(pcm16[2*i])/32768.0f;
+ pcmf32s[1][i] = float(pcm16[2*i + 1])/32768.0f;
+ }
+ }
+ }
+ {
+ static bool is_aborted = false; // NOTE: this should be atomic to avoid data race
+
+ rwp->params.encoder_begin_callback = [](struct whisper_context * /*ctx*/, void * user_data) {
+ bool is_aborted = *(bool*)user_data;
+ return !is_aborted;
+ };
+ rwp->params.encoder_begin_callback_user_data = &is_aborted;
+ }
+
+ if (whisper_full_parallel(rw->context, rwp->params, pcmf32.data(), pcmf32.size(), 1) != 0) {
+ fprintf(stderr, "failed to process audio\n");
+ return self;
+ }
+ const int n_segments = whisper_full_n_segments(rw->context);
+ VALUE output = rb_str_new2("");
+ for (int i = 0; i < n_segments; ++i) {
+ const char * text = whisper_full_get_segment_text(rw->context, i);
+ output = rb_str_concat(output, rb_str_new2(text));
+ }
+ VALUE idCall = rb_intern("call");
+ if (blk != Qnil) {
+ rb_funcall(blk, idCall, 1, output);
+ }
+ return self;
+}
+
+/*
+ * params.language = "auto" | "en", etc...
+ */
+static VALUE ruby_whisper_params_set_language(VALUE self, VALUE value) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ if (value == Qfalse || value == Qnil) {
+ rwp->params.language = "auto";
+ } else {
+ rwp->params.language = StringValueCStr(value);
+ }
+ return value;
+}
+static VALUE ruby_whisper_params_get_language(VALUE self) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ if (rwp->params.language) {
+ return rb_str_new2(rwp->params.language);
+ } else {
+ return rb_str_new2("auto");
+ }
+}
+static VALUE ruby_whisper_params_set_translate(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, translate, value)
+}
+static VALUE ruby_whisper_params_get_translate(VALUE self) {
+ BOOL_PARAMS_GETTER(self, translate)
+}
+static VALUE ruby_whisper_params_set_no_context(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, no_context, value)
+}
+static VALUE ruby_whisper_params_get_no_context(VALUE self) {
+ BOOL_PARAMS_GETTER(self, no_context)
+}
+static VALUE ruby_whisper_params_set_single_segment(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, single_segment, value)
+}
+static VALUE ruby_whisper_params_get_single_segment(VALUE self) {
+ BOOL_PARAMS_GETTER(self, single_segment)
+}
+static VALUE ruby_whisper_params_set_print_special(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, print_special, value)
+}
+static VALUE ruby_whisper_params_get_print_special(VALUE self) {
+ BOOL_PARAMS_GETTER(self, print_special)
+}
+static VALUE ruby_whisper_params_set_print_progress(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, print_progress, value)
+}
+static VALUE ruby_whisper_params_get_print_progress(VALUE self) {
+ BOOL_PARAMS_GETTER(self, print_progress)
+}
+static VALUE ruby_whisper_params_set_print_realtime(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, print_realtime, value)
+}
+static VALUE ruby_whisper_params_get_print_realtime(VALUE self) {
+ BOOL_PARAMS_GETTER(self, print_realtime)
+}
+static VALUE ruby_whisper_params_set_print_timestamps(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, print_timestamps, value)
+}
+static VALUE ruby_whisper_params_get_print_timestamps(VALUE self) {
+ BOOL_PARAMS_GETTER(self, print_timestamps)
+}
+static VALUE ruby_whisper_params_set_suppress_blank(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, suppress_blank, value)
+}
+static VALUE ruby_whisper_params_get_suppress_blank(VALUE self) {
+ BOOL_PARAMS_GETTER(self, suppress_blank)
+}
+static VALUE ruby_whisper_params_set_suppress_non_speech_tokens(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, suppress_non_speech_tokens, value)
+}
+static VALUE ruby_whisper_params_get_suppress_non_speech_tokens(VALUE self) {
+ BOOL_PARAMS_GETTER(self, suppress_non_speech_tokens)
+}
+static VALUE ruby_whisper_params_get_token_timestamps(VALUE self) {
+ BOOL_PARAMS_GETTER(self, token_timestamps)
+}
+static VALUE ruby_whisper_params_set_token_timestamps(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, token_timestamps, value)
+}
+static VALUE ruby_whisper_params_get_split_on_word(VALUE self) {
+ BOOL_PARAMS_GETTER(self, split_on_word)
+}
+static VALUE ruby_whisper_params_set_split_on_word(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, split_on_word, value)
+}
+static VALUE ruby_whisper_params_get_speed_up(VALUE self) {
+ BOOL_PARAMS_GETTER(self, speed_up)
+}
+static VALUE ruby_whisper_params_set_speed_up(VALUE self, VALUE value) {
+ BOOL_PARAMS_SETTER(self, speed_up, value)
+}
+static VALUE ruby_whisper_params_get_diarize(VALUE self) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ if (rwp->diarize) {
+ return Qtrue;
+ } else {
+ return Qfalse;
+ }
+}
+static VALUE ruby_whisper_params_set_diarize(VALUE self, VALUE value) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ if (value == Qfalse || value == Qnil) {
+ rwp->diarize = false;
+ } else {
+ rwp->diarize = true;
+ } \
+ return value;
+}
+
+static VALUE ruby_whisper_params_get_offset(VALUE self) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ return INT2NUM(rwp->params.offset_ms);
+}
+static VALUE ruby_whisper_params_set_offset(VALUE self, VALUE value) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ rwp->params.offset_ms = NUM2INT(value);
+ return value;
+}
+static VALUE ruby_whisper_params_get_duration(VALUE self) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ return INT2NUM(rwp->params.duration_ms);
+}
+static VALUE ruby_whisper_params_set_duration(VALUE self, VALUE value) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ rwp->params.duration_ms = NUM2INT(value);
+ return value;
+}
+
+static VALUE ruby_whisper_params_get_max_text_tokens(VALUE self) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ return INT2NUM(rwp->params.n_max_text_ctx);
+}
+static VALUE ruby_whisper_params_set_max_text_tokens(VALUE self, VALUE value) {
+ ruby_whisper_params *rwp;
+ Data_Get_Struct(self, ruby_whisper_params, rwp);
+ rwp->params.n_max_text_ctx = NUM2INT(value);
+ return value;
+}
+
+void Init_whisper() {
+ mWhisper = rb_define_module("Whisper");
+ cContext = rb_define_class_under(mWhisper, "Context", rb_cObject);
+ cParams = rb_define_class_under(mWhisper, "Params", rb_cObject);
+
+ rb_define_alloc_func(cContext, ruby_whisper_allocate);
+ rb_define_method(cContext, "initialize", ruby_whisper_initialize, -1);
+
+ rb_define_method(cContext, "transcribe", ruby_whisper_transcribe, -1);
+
+ rb_define_alloc_func(cParams, ruby_whisper_params_allocate);
+
+ rb_define_method(cParams, "language=", ruby_whisper_params_set_language, 1);
+ rb_define_method(cParams, "language", ruby_whisper_params_get_language, 0);
+ rb_define_method(cParams, "translate=", ruby_whisper_params_set_translate, 1);
+ rb_define_method(cParams, "translate", ruby_whisper_params_get_translate, 0);
+ rb_define_method(cParams, "no_context=", ruby_whisper_params_set_no_context, 1);
+ rb_define_method(cParams, "no_context", ruby_whisper_params_get_no_context, 0);
+ rb_define_method(cParams, "single_segment=", ruby_whisper_params_set_single_segment, 1);
+ rb_define_method(cParams, "single_segment", ruby_whisper_params_get_single_segment, 0);
+ rb_define_method(cParams, "print_special", ruby_whisper_params_get_print_special, 0);
+ rb_define_method(cParams, "print_special=", ruby_whisper_params_set_print_special, 1);
+ rb_define_method(cParams, "print_progress", ruby_whisper_params_get_print_progress, 0);
+ rb_define_method(cParams, "print_progress=", ruby_whisper_params_set_print_progress, 1);
+ rb_define_method(cParams, "print_realtime", ruby_whisper_params_get_print_realtime, 0);
+ rb_define_method(cParams, "print_realtime=", ruby_whisper_params_set_print_realtime, 1);
+ rb_define_method(cParams, "print_timestamps", ruby_whisper_params_get_print_timestamps, 0);
+ rb_define_method(cParams, "print_timestamps=", ruby_whisper_params_set_print_timestamps, 1);
+ rb_define_method(cParams, "suppress_blank", ruby_whisper_params_get_suppress_blank, 0);
+ rb_define_method(cParams, "suppress_blank=", ruby_whisper_params_set_suppress_blank, 1);
+ rb_define_method(cParams, "suppress_non_speech_tokens", ruby_whisper_params_get_suppress_non_speech_tokens, 0);
+ rb_define_method(cParams, "suppress_non_speech_tokens=", ruby_whisper_params_set_suppress_non_speech_tokens, 1);
+ rb_define_method(cParams, "token_timestamps", ruby_whisper_params_get_token_timestamps, 0);
+ rb_define_method(cParams, "token_timestamps=", ruby_whisper_params_set_token_timestamps, 1);
+ rb_define_method(cParams, "split_on_word", ruby_whisper_params_get_split_on_word, 0);
+ rb_define_method(cParams, "split_on_word=", ruby_whisper_params_set_split_on_word, 1);
+ rb_define_method(cParams, "speed_up", ruby_whisper_params_get_speed_up, 0);
+ rb_define_method(cParams, "speed_up=", ruby_whisper_params_set_speed_up, 1);
+ rb_define_method(cParams, "diarize", ruby_whisper_params_get_diarize, 0);
+ rb_define_method(cParams, "diarize=", ruby_whisper_params_set_diarize, 1);
+
+ rb_define_method(cParams, "offset", ruby_whisper_params_get_offset, 0);
+ rb_define_method(cParams, "offset=", ruby_whisper_params_set_offset, 1);
+ rb_define_method(cParams, "duration", ruby_whisper_params_get_duration, 0);
+ rb_define_method(cParams, "duration=", ruby_whisper_params_set_duration, 1);
+
+ rb_define_method(cParams, "max_text_tokens", ruby_whisper_params_get_max_text_tokens, 0);
+ rb_define_method(cParams, "max_text_tokens=", ruby_whisper_params_set_max_text_tokens, 1);
+}
+#ifdef __cplusplus
+}
+#endif
--- /dev/null
+TOPDIR = File.expand_path(File.join(File.dirname(__FILE__), '..'))
+EXTDIR = File.join(TOPDIR, 'ext')
+#$LIBDIR = File.join(TOPDIR, 'lib')
+#$:.unshift(LIBDIR)
+$:.unshift(EXTDIR)
+
+require 'whisper'
+require 'test/unit'
+
+class TestWhisper < Test::Unit::TestCase
+ def setup
+ @params = Whisper::Params.new
+ end
+
+ def test_language
+ @params.language = "en"
+ assert_equal @params.language, "en"
+ @params.language = "auto"
+ assert_equal @params.language, "auto"
+ end
+
+ def test_offset
+ @params.offset = 10_000
+ assert_equal @params.offset, 10_000
+ @params.offset = 0
+ assert_equal @params.offset, 0
+ end
+
+ def test_duration
+ @params.duration = 60_000
+ assert_equal @params.duration, 60_000
+ @params.duration = 0
+ assert_equal @params.duration, 0
+ end
+
+ def test_max_text_tokens
+ @params.max_text_tokens = 300
+ assert_equal @params.max_text_tokens, 300
+ @params.max_text_tokens = 0
+ assert_equal @params.max_text_tokens, 0
+ end
+
+ def test_translate
+ @params.translate = true
+ assert @params.translate
+ @params.translate = false
+ assert !@params.translate
+ end
+
+ def test_no_context
+ @params.no_context = true
+ assert @params.no_context
+ @params.no_context = false
+ assert !@params.no_context
+ end
+
+ def test_single_segment
+ @params.single_segment = true
+ assert @params.single_segment
+ @params.single_segment = false
+ assert !@params.single_segment
+ end
+
+ def test_print_special
+ @params.print_special = true
+ assert @params.print_special
+ @params.print_special = false
+ assert !@params.print_special
+ end
+
+ def test_print_progress
+ @params.print_progress = true
+ assert @params.print_progress
+ @params.print_progress = false
+ assert !@params.print_progress
+ end
+
+ def test_print_realtime
+ @params.print_realtime = true
+ assert @params.print_realtime
+ @params.print_realtime = false
+ assert !@params.print_realtime
+ end
+
+ def test_print_timestamps
+ @params.print_timestamps = true
+ assert @params.print_timestamps
+ @params.print_timestamps = false
+ assert !@params.print_timestamps
+ end
+
+ def test_suppress_blank
+ @params.suppress_blank = true
+ assert @params.suppress_blank
+ @params.suppress_blank = false
+ assert !@params.suppress_blank
+ end
+
+ def test_suppress_non_speech_tokens
+ @params.suppress_non_speech_tokens = true
+ assert @params.suppress_non_speech_tokens
+ @params.suppress_non_speech_tokens = false
+ assert !@params.suppress_non_speech_tokens
+ end
+
+ def test_token_timestamps
+ @params.token_timestamps = true
+ assert @params.token_timestamps
+ @params.token_timestamps = false
+ assert !@params.token_timestamps
+ end
+
+ def test_split_on_word
+ @params.split_on_word = true
+ assert @params.split_on_word
+ @params.split_on_word = false
+ assert !@params.split_on_word
+ end
+
+ def test_speed_up
+ @params.speed_up = true
+ assert @params.speed_up
+ @params.speed_up = false
+ assert !@params.speed_up
+ end
+
+ def test_whisper
+ @whisper = Whisper::Context.new(File.join(TOPDIR, '..', '..', 'models', 'ggml-base.en.bin'))
+ params = Whisper::Params.new
+ params.print_timestamps = false
+
+ jfk = File.join(TOPDIR, '..', '..', 'samples', 'jfk.wav')
+ @whisper.transcribe(jfk, params) {|text|
+ assert_match /ask not what your country can do for you, ask what you can do for your country/, text
+ }
+ end
+
+end
overview / pkg / ggml / sources / whisper.cpp / commitdiff