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https://github.com/ggerganov/whisper.cpp.git
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main : provide option for creating JSON output (#615)
* examples : provide option for exporting also as JSON file (ggerganov/whisper.cpp#614) * main : remove leftovers --------- Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
This commit is contained in:
Leo Moll
GitHub
@ -73,6 +73,7 @@ struct whisper_params {
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bool output_srt = false;
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bool output_wts = false;
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bool output_csv = false;
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bool output_jsn = false;
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bool print_special = false;
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bool print_colors = false;
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bool print_progress = false;
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@ -130,6 +131,7 @@ bool whisper_params_parse(int argc, char ** argv, whisper_params & params) {
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else if (arg == "-owts" || arg == "--output-words") { params.output_wts = true; }
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else if (arg == "-fp" || arg == "--font-path") { params.font_path = argv[++i]; }
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else if (arg == "-ocsv" || arg == "--output-csv") { params.output_csv = true; }
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else if (arg == "-oj" || arg == "--output-json") { params.output_jsn = true; }
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else if (arg == "-of" || arg == "--output-file") { params.fname_out.emplace_back(argv[++i]); }
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else if (arg == "-ps" || arg == "--print-special") { params.print_special = true; }
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else if (arg == "-pc" || arg == "--print-colors") { params.print_colors = true; }
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@ -178,6 +180,7 @@ void whisper_print_usage(int /*argc*/, char ** argv, const whisper_params & para
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fprintf(stderr, " -owts, --output-words [%-7s] output script for generating karaoke video\n", params.output_wts ? "true" : "false");
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fprintf(stderr, " -fp, --font-path [%-7s] path to a monospace font for karaoke video\n", params.font_path.c_str());
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fprintf(stderr, " -ocsv, --output-csv [%-7s] output result in a CSV file\n", params.output_csv ? "true" : "false");
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fprintf(stderr, " -oj, --output-json [%-7s] output result in a JSON file\n", params.output_jsn ? "true" : "false");
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fprintf(stderr, " -of FNAME, --output-file FNAME [%-7s] output file path (without file extension)\n", "");
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fprintf(stderr, " -ps, --print-special [%-7s] print special tokens\n", params.print_special ? "true" : "false");
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fprintf(stderr, " -pc, --print-colors [%-7s] print colors\n", params.print_colors ? "true" : "false");
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@ -368,6 +371,129 @@ bool output_csv(struct whisper_context * ctx, const char * fname) {
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return true;
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}
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bool output_json(struct whisper_context * ctx, const char * fname, const whisper_params & params) {
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std::ofstream fout(fname);
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int indent = 0;
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auto doindent = [&]() {
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for (int i = 0; i < indent; i++) fout << "\t";
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};
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auto start_arr = [&](const char *name) {
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doindent();
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fout << "\"" << name << "\": [\n";
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indent++;
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};
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auto end_arr = [&](bool end = false) {
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indent--;
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doindent();
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fout << (end ? "]\n" : "},\n");
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};
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auto start_obj = [&](const char *name = nullptr) {
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doindent();
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if (name) {
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fout << "\"" << name << "\": {\n";
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} else {
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fout << "{\n";
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}
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indent++;
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};
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auto end_obj = [&](bool end = false) {
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indent--;
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doindent();
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fout << (end ? "}\n" : "},\n");
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};
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auto start_value = [&](const char *name) {
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doindent();
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fout << "\"" << name << "\": ";
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};
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auto value_s = [&](const char *name, const char *val, bool end = false) {
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start_value(name);
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fout << "\"" << val << (end ? "\"\n" : "\",\n");
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};
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auto end_value = [&](bool end = false) {
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fout << (end ? "\n" : ",\n");
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};
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auto value_i = [&](const char *name, const int64_t val, bool end = false) {
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start_value(name);
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fout << val;
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end_value(end);
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};
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auto value_b = [&](const char *name, const bool val, bool end = false) {
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start_value(name);
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fout << (val ? "true" : "false");
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end_value(end);
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};
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if (!fout.is_open()) {
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fprintf(stderr, "%s: failed to open '%s' for writing\n", __func__, fname);
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return false;
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}
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fprintf(stderr, "%s: saving output to '%s'\n", __func__, fname);
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start_obj();
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value_s("systeminfo", whisper_print_system_info());
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start_obj("model");
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value_s("type", whisper_model_type_readable(ctx));
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value_b("multilingual", whisper_is_multilingual(ctx));
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value_i("vocab", whisper_model_n_vocab(ctx));
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start_obj("audio");
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value_i("ctx", whisper_model_n_audio_ctx(ctx));
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value_i("state", whisper_model_n_audio_state(ctx));
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value_i("head", whisper_model_n_audio_head(ctx));
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value_i("layer", whisper_model_n_audio_layer(ctx), true);
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end_obj();
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start_obj("text");
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value_i("ctx", whisper_model_n_text_ctx(ctx));
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value_i("state", whisper_model_n_text_state(ctx));
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value_i("head", whisper_model_n_text_head(ctx));
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value_i("leyer", whisper_model_n_text_layer(ctx), true);
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end_obj();
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value_i("mels", whisper_model_n_mels(ctx));
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value_i("f16", whisper_model_f16(ctx), true);
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end_obj();
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start_obj("params");
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value_s("model", params.model.c_str());
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value_s("language", params.language.c_str());
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value_b("translate", params.translate, true);
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end_obj();
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start_obj("result");
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value_s("language", whisper_lang_str(whisper_full_lang_id(ctx)), true);
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end_obj();
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start_arr("transcription");
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const int n_segments = whisper_full_n_segments(ctx);
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for (int i = 0; i < n_segments; ++i) {
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const char * text = whisper_full_get_segment_text(ctx, i);
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const int64_t t0 = whisper_full_get_segment_t0(ctx, i);
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const int64_t t1 = whisper_full_get_segment_t1(ctx, i);
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start_obj();
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start_obj("timestanps");
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value_s("from", to_timestamp(t0, true).c_str());
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value_s("to", to_timestamp(t1, true).c_str(), true);
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end_obj();
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start_obj("offsets");
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value_i("from", t0 * 10);
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value_i("to", t1 * 10, true);
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end_obj();
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value_s("text", text, true);
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end_obj(i == (n_segments - 1));
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}
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end_arr(true);
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end_obj(true);
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return true;
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}
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// karaoke video generation
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// outputs a bash script that uses ffmpeg to generate a video with the subtitles
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// TODO: font parameter adjustments
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@ -662,6 +788,12 @@ int main(int argc, char ** argv) {
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const auto fname_csv = fname_out + ".csv";
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output_csv(ctx, fname_csv.c_str());
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}
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// output to JSON file
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if (params.output_jsn) {
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const auto fname_jsn = fname_out + ".json";
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output_json(ctx, fname_jsn.c_str(), params);
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}
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}
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}
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