How to use join_audio_data method in wpt

Best JavaScript code snippet using wpt

audio-encoder.https.any.js

Source:audio-encoder.https.any.js

1// META: global=window2// META: script=/webcodecs/utils.js3// Merge all audio buffers into a new big one with all the data.4function join_audio_data(audio_data_array) {5  assert_greater_than_equal(audio_data_array.length, 0);6  let total_frames = 0;7  let base_buffer = audio_data_array[0];8  for (const data of audio_data_array) {9    assert_not_equals(data, null);10    assert_equals(data.sampleRate, base_buffer.sampleRate);11    assert_equals(data.numberOfChannels, base_buffer.numberOfChannels);12    assert_equals(data.format, base_buffer.format);13    total_frames += data.numberOfFrames;14  }15  assert_true(base_buffer.format == 'f32' || base_buffer.format == 'f32-planar');16  if (base_buffer.format == 'f32')17    return join_interleaved_data(audio_data_array, total_frames);18  // The format is 'FLTP'.19  return join_planar_data(audio_data_array, total_frames);20}21function join_interleaved_data(audio_data_array, total_frames) {22  let base_data =  audio_data_array[0];23  let channels = base_data.numberOfChannels;24  let total_samples = total_frames * channels;25  let result = new Float32Array(total_samples);26  let copy_dest = new Float32Array(base_data.numberOfFrames * channels);27  // Copy all the interleaved data.28  let position = 0;29  for (const data of audio_data_array) {30    let samples = data.numberOfFrames * channels;31    if (copy_dest.length < samples)32      copy_dest = new Float32Array(samples);33    data.copyTo(copy_dest, {planeIndex: 0});34    result.set(copy_dest, position);35    position += samples;36  }37  assert_equals(position, total_samples);38  return result;39}40function join_planar_data(audio_data_array, total_frames) {41  let base_frames = audio_data_array[0].numberOfFrames;42  let channels = audio_data_array[0].numberOfChannels;43  let result = new Float32Array(total_frames*channels);44  let copyDest = new Float32Array(base_frames);45  // Merge all samples and lay them out according to the FLTP memory layout.46  let position = 0;47  for (let ch = 0; ch < channels; ch++) {48    for (const data of audio_data_array) {49      data.copyTo(copyDest, { planeIndex: ch});50      result.set(copyDest, position);51      position += data.numberOfFrames;52    }53  }54  assert_equals(position, total_frames * channels);55  return result;56}57promise_test(async t => {58  let sample_rate = 48000;59  let total_duration_s = 1;60  let data_count = 10;61  let outputs = [];62  let init = {63    error: e => {64      assert_unreached("error: " + e);65    },66    output: chunk => {67      outputs.push(chunk);68    }69  };70  let encoder = new AudioEncoder(init);71  assert_equals(encoder.state, "unconfigured");72  let config = {73    codec: 'opus',74    sampleRate: sample_rate,75    numberOfChannels: 2,76    bitrate: 256000 //256kbit77  };78  encoder.configure(config);79  let timestamp_us = 0;80  let data_duration_s = total_duration_s / data_count;81  let data_length = data_duration_s * config.sampleRate;82  for (let i = 0; i < data_count; i++) {83    let data = make_audio_data(timestamp_us, config.numberOfChannels,84      config.sampleRate, data_length);85    encoder.encode(data);86    data.close();87    timestamp_us += data_duration_s * 1_000_000;88  }89  await encoder.flush();90  encoder.close();91  assert_greater_than_equal(outputs.length, data_count);92  assert_equals(outputs[0].timestamp, 0, "first chunk timestamp");93  let total_encoded_duration = 094  for (chunk of outputs) {95    assert_greater_than(chunk.byteLength, 0);96    assert_greater_than_equal(timestamp_us, chunk.timestamp);97    assert_greater_than(chunk.duration, 0);98    total_encoded_duration += chunk.duration;99  }100  // The total duration might be padded with silence.101  assert_greater_than_equal(102      total_encoded_duration, total_duration_s * 1_000_000);103}, 'Simple audio encoding');104promise_test(async t => {105  let sample_rate = 48000;106  let total_duration_s = 1;107  let data_count = 10;108  let outputs = [];109  let init = {110    error: e => {111      assert_unreached('error: ' + e);112    },113    output: chunk => {114      outputs.push(chunk);115    }116  };117  let encoder = new AudioEncoder(init);118  assert_equals(encoder.state, 'unconfigured');119  let config = {120    codec: 'opus',121    sampleRate: sample_rate,122    numberOfChannels: 2,123    bitrate: 256000  // 256kbit124  };125  encoder.configure(config);126  let timestamp_us = -10000;127  let data = make_audio_data(128      timestamp_us, config.numberOfChannels, config.sampleRate, 10000);129  encoder.encode(data);130  data.close();131  await encoder.flush();132  encoder.close();133  assert_greater_than_equal(outputs.length, 1);134  assert_equals(outputs[0].timestamp, -10000, 'first chunk timestamp');135  for (chunk of outputs) {136    assert_greater_than(chunk.byteLength, 0);137    assert_greater_than_equal(chunk.timestamp, timestamp_us);138  }139}, 'Encode audio with negative timestamp');140async function checkEncodingError(config, good_data, bad_data) {141  let error = null;142  let outputs = 0;143  let init = {144    error: e => {145      error = e;146    },147    output: chunk => {148      outputs++;149    }150  };151  let encoder = new AudioEncoder(init);152  let support = await AudioEncoder.isConfigSupported(config);153  assert_true(support.supported)154  config = support.config;155  encoder.configure(config);156  for (let data of good_data) {157    encoder.encode(data);158    data.close();159  }160  await encoder.flush();161  let txt_config = "sampleRate: " + config.sampleRate162                 + " numberOfChannels: " + config.numberOfChannels;163  assert_equals(error, null, txt_config);164  assert_greater_than(outputs, 0);165  encoder.encode(bad_data);166  await encoder.flush().catch(() => {});167  assert_not_equals(error, null, txt_config);168}169function channelNumberVariationTests() {170  let sample_rate = 48000;171  for (let channels = 1; channels <= 2; channels++) {172    let config = {173      codec: 'opus',174      sampleRate: sample_rate,175      numberOfChannels: channels,176      bitrate: 128000177    };178    let ts = 0;179    let length = sample_rate / 10;180    let data1 = make_audio_data(ts, channels, sample_rate, length);181    ts += Math.floor(data1.duration / 1000000);182    let data2 = make_audio_data(ts, channels, sample_rate, length);183    ts += Math.floor(data2.duration / 1000000);184    let bad_data = make_audio_data(ts, channels + 1, sample_rate, length);185    promise_test(async t =>186      checkEncodingError(config, [data1, data2], bad_data),187      "Channel number variation: " + channels);188  }189}190channelNumberVariationTests();191function sampleRateVariationTests() {192  let channels = 1193  for (let sample_rate = 3000; sample_rate < 96000; sample_rate += 10000) {194    let config = {195      codec: 'opus',196      sampleRate: sample_rate,197      numberOfChannels: channels,198      bitrate: 128000199    };200    let ts = 0;201    let length = sample_rate / 10;202    let data1 = make_audio_data(ts, channels, sample_rate, length);203    ts += Math.floor(data1.duration / 1000000);204    let data2 = make_audio_data(ts, channels, sample_rate, length);205    ts += Math.floor(data2.duration / 1000000);206    let bad_data = make_audio_data(ts, channels, sample_rate + 333, length);207    promise_test(async t =>208      checkEncodingError(config, [data1, data2], bad_data),209      "Sample rate variation: " + sample_rate);210  }211}212sampleRateVariationTests();213promise_test(async t => {214  let sample_rate = 48000;215  let total_duration_s = 1;216  let data_count = 10;217  let input_data = [];218  let output_data = [];219  let decoder_init = {220    error: t.unreached_func("Decode error"),221    output: data => {222      output_data.push(data);223    }224  };225  let decoder = new AudioDecoder(decoder_init);226  let encoder_init = {227    error: t.unreached_func("Encoder error"),228    output: (chunk, metadata) => {229      let config = metadata.decoderConfig;230      if (config)231        decoder.configure(config);232      decoder.decode(chunk);233    }234  };235  let encoder = new AudioEncoder(encoder_init);236  let config = {237    codec: 'opus',238    sampleRate: sample_rate,239    numberOfChannels: 2,240    bitrate: 256000, //256kbit241  };242  encoder.configure(config);243  let timestamp_us = 0;244  const data_duration_s = total_duration_s / data_count;245  const data_length = data_duration_s * config.sampleRate;246  for (let i = 0; i < data_count; i++) {247    let data = make_audio_data(timestamp_us, config.numberOfChannels,248      config.sampleRate, data_length);249    input_data.push(data);250    encoder.encode(data);251    timestamp_us += data_duration_s * 1_000_000;252  }253  await encoder.flush();254  encoder.close();255  await decoder.flush();256  decoder.close();257  let total_input = join_audio_data(input_data);258  let frames_per_plane = total_input.length / config.numberOfChannels;259  let total_output = join_audio_data(output_data);260  let base_input = input_data[0];261  let base_output = output_data[0];262  // TODO: Convert formats to simplify conversions, once263  // https://github.com/w3c/webcodecs/issues/232 is resolved.264  assert_equals(base_input.format, "f32-planar");265  assert_equals(base_output.format, "f32");266  assert_equals(base_output.numberOfChannels, config.numberOfChannels);267  assert_equals(base_output.sampleRate, sample_rate);268  // Output can be slightly longer that the input due to padding269  assert_greater_than_equal(total_output.length, total_input.length);270  // Compare waveform before and after encoding271  for (let channel = 0; channel < base_input.numberOfChannels; channel++) {272    let plane_start = channel * frames_per_plane;273    let input_plane = total_input.slice(...

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2var fs = require('fs');3var file1 = fs.readFileSync('file1.wav');4var file2 = fs.readFileSync('file2.wav');5var file3 = fs.readFileSync('file3.wav');6var file1_buffer = new Buffer(file1);7var file2_buffer = new Buffer(file2);8var file3_buffer = new Buffer(file3);9var joined_audio = wptoolkit.join_audio_data([file1_buffer, file2_buffer, file3_buffer]);10fs.writeFileSync('joined.wav', joined_audio);11{12  "dependencies": {13  }14}

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2var join_audio_data = wptoolkit.join_audio_data;3var audio_data = join_audio_data('audio1.wav', 'audio2.wav');4console.log(audio_data.length);5    var join_audio_data = wptoolkit.join_audio_data;6    var audio_data = join_audio_data('audio1.wav', 'audio2.wav');7    console.log(audio_data.length);8join_audio_data(audio1, audio2)9record_audio()10play_audio(audio_data)11stop_audio()12set_volume(volume)13get_volume()14get_audio_data(audio_file)15save_audio_data(audio_data, audio_file)16get_audio_duration(audio_data)17get_audio_duration(audio_file)18get_audio_duration(audio_data)

Using AI Code Generation

1var wptoolkit = require('wptoolkit');2var audio_data = wptoolkit.join_audio_data('audio_1.wav', 'audio_2.wav');3wptoolkit.write_audio_data(audio_data, 'audio_out.wav');4var fs = require('fs');5var player = require('play-sound')(opts = {});6var audio_data = fs.readFileSync('audio_out.wav');7player.play(audio_data, function(err){8  if (err) throw err9});10var fs = require('fs');11var audio_data = fs.readFileSync('audio_out.wav');12fs.writeFileSync('audio_out.mp3', audio_data);13var fs = require('fs');14var request = require('request');15var audio_data = fs.readFileSync('audio_out.wav');16var options = {17  headers: {18  },19};20request(options, function (error, response, body) {21  if (!error && response.statusCode == 200) {22    console.log(body);23  }24});25var fs = require('fs');26var audio_data = fs.readFileSync('audio_out.wav');27var audio_data_base64 = audio_data.toString('base64');28var fs = require('fs');29var audio_data = fs.readFileSync('audio_out.wav');30var audio_data_binary = audio_data.toString('binary');31var fs = require('fs');32var audio_data = fs.readFileSync('audio_out.wav');33var audio_data_hex = audio_data.toString('hex');34var fs = require('fs');35var audio_data = fs.readFileSync('audio

Using AI Code Generation

1var wpt = require('wptoolkit');2var wav1 = './test1.wav';3var wav2 = './test2.wav';4wpt.join_audio_data(wav1, wav2, function (err, data) {5  if (err) {6    console.log(err);7  } else {8    console.log(data);9  }10});11var fs = require('fs');12var wav1 = fs.readFileSync('./test1.wav');13var wav2 = fs.readFileSync('./test2.wav');14fs.writeFileSync('./test.wav', Buffer.concat([wav1, wav2]));

Using AI Code Generation

1var audio_data = wptb.join_audio_data(audio_data1, audio_data2);2var audio_data = wptb.join_audio_data(audio_data1, audio_data2);3var audio_data = wptb.join_audio_data(audio_data1, audio_data2);4var audio_data = wptb.join_audio_data(audio_data1, audio_data2);5var audio_data = wptb.join_audio_data(audio_data1, audio_data2);6var audio_data = wptb.join_audio_data(audio_data1, audio_data2);7var audio_data = wptb.join_audio_data(audio_data1, audio_data2);8var audio_data = wptb.join_audio_data(audio_data1, audio_data2);9var audio_data = wptb.join_audio_data(audio_data1, audio_data2);10var audio_data = wptb.join_audio_data(audio_data1,

Using AI Code Generation

1var wptools = require('wptools');2var fs = require('fs');3var text = fs.readFileSync('input.txt', 'utf8');4var text_array = text.split('5');6var text_array_length = text_array.length;7var output_file_name = 'output.wav';8var audio_data = [];9for (var i = 0; i < text_array_length; i++) {10    var text_to_speech = wptools.text_to_speech(text_array[i]);11    audio_data.push(text_to_speech);12}13wptools.join_audio_data(audio_data, output_file_name, function (err) {14    if (err) {15        console.log(err);16    } else {17        console.log('done');18    }19});

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