You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
85 lines
3.1 KiB
85 lines
3.1 KiB
// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "decoder/recognizer.h"
|
|
#include "decoder/param.h"
|
|
#include "kaldi/feat/wave-reader.h"
|
|
#include "kaldi/util/table-types.h"
|
|
|
|
DEFINE_string(wav_rspecifier, "", "test feature rspecifier");
|
|
DEFINE_string(result_wspecifier, "", "test result wspecifier");
|
|
|
|
int main(int argc, char* argv[]) {
|
|
gflags::ParseCommandLineFlags(&argc, &argv, false);
|
|
google::InitGoogleLogging(argv[0]);
|
|
|
|
ppspeech::RecognizerResource resource = ppspeech::InitRecognizerResoure();
|
|
ppspeech::Recognizer recognizer(resource);
|
|
|
|
kaldi::SequentialTableReader<kaldi::WaveHolder> wav_reader(
|
|
FLAGS_wav_rspecifier);
|
|
kaldi::TokenWriter result_writer(FLAGS_result_wspecifier);
|
|
int sample_rate = 16000;
|
|
float streaming_chunk = FLAGS_streaming_chunk;
|
|
int chunk_sample_size = streaming_chunk * sample_rate;
|
|
LOG(INFO) << "sr: " << sample_rate;
|
|
LOG(INFO) << "chunk size (s): " << streaming_chunk;
|
|
LOG(INFO) << "chunk size (sample): " << chunk_sample_size;
|
|
|
|
int32 num_done = 0, num_err = 0;
|
|
|
|
for (; !wav_reader.Done(); wav_reader.Next()) {
|
|
std::string utt = wav_reader.Key();
|
|
const kaldi::WaveData& wave_data = wav_reader.Value();
|
|
|
|
int32 this_channel = 0;
|
|
kaldi::SubVector<kaldi::BaseFloat> waveform(wave_data.Data(),
|
|
this_channel);
|
|
int tot_samples = waveform.Dim();
|
|
LOG(INFO) << "wav len (sample): " << tot_samples;
|
|
|
|
int sample_offset = 0;
|
|
std::vector<kaldi::Vector<BaseFloat>> feats;
|
|
int feature_rows = 0;
|
|
while (sample_offset < tot_samples) {
|
|
int cur_chunk_size =
|
|
std::min(chunk_sample_size, tot_samples - sample_offset);
|
|
|
|
kaldi::Vector<kaldi::BaseFloat> wav_chunk(cur_chunk_size);
|
|
for (int i = 0; i < cur_chunk_size; ++i) {
|
|
wav_chunk(i) = waveform(sample_offset + i);
|
|
}
|
|
|
|
recognizer.Accept(wav_chunk);
|
|
if (cur_chunk_size < chunk_sample_size) {
|
|
recognizer.SetFinished();
|
|
}
|
|
recognizer.Decode();
|
|
|
|
sample_offset += cur_chunk_size;
|
|
}
|
|
std::string result;
|
|
result = recognizer.GetFinalResult();
|
|
recognizer.Reset();
|
|
if (result.empty()) {
|
|
// the TokenWriter can not write empty string.
|
|
++num_err;
|
|
KALDI_LOG << " the result of " << utt << " is empty";
|
|
continue;
|
|
}
|
|
KALDI_LOG << " the result of " << utt << " is " << result;
|
|
result_writer.Write(utt, result);
|
|
++num_done;
|
|
}
|
|
} |