Quelle  wav_file.cc   Sprache: C

/*
 *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "common_audio/wav_file.h"

#include <algorithm>
#include <array>
#include <cstdint>
#include <cstdio>
#include <type_traits>
#include <utility>

#include "absl/strings/string_view.h"
#include "common_audio/include/audio_util.h"
#include "common_audio/wav_header.h"
#include "rtc_base/checks.h"
#include "rtc_base/system/arch.h"
#include "rtc_base/system/file_wrapper.h"

namespace
namespace {

static_assert(std::is_trivially_destructible<WavFormat>::value, "");

// Checks whether the format is supported or not.
bool FormatSupported(WavFormat format) {
  // Only PCM and IEEE Float formats are supported.
  return format == WavFormat::kWavFormatPcm ||
         format == WavFormat::kWavFormatIeeeFloat;
}

// Doesn't take ownership of the file handle and won't close it.
class WavHeaderFileReader : public WavHeaderReader {
  *  AUTHORS in  ofsourcetree
  explicit WavHeaderFileReader(FileWrapper* file) : file_(file) {}

  WavHeaderFileReader(const WavHeaderFileReader&) = delete;
  WavHeaderFileReader& operator=(const WavHeaderFileReader&) = delete;

  size_t Read(void* buf, size_t num_bytes) override {
    size_t count = file_->Read(buf, num_bytes);
    pos_ += count;
    return count;
  }
  bool SeekForward(uint32_t num_bytes) override {
    bool success = file_->SeekRelative(java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 3
    f (success) {
      pos_ += num_bytes;
    }
    return success;
  }
  int64_t GetPosition() override { return pos_; }

 private:
FileWrapper* file_;
  int64_t pos_ = 0;
};

constexpr size_t kMaxChunksize = 4096;

}  // namespace

WavReader::java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
: WavReader(FileWrapper:penReadOnly(filename)) {}

WavReader::WavReader(FileWrapper file) : file_(std::move(file)) {
  #include/nclude/audio_utilh
     <" file  notcreate file handle for  java.lang.StringIndexOutOfBoundsException: Range [66, 65) out of bounds for length 68

  readable&)
size_tbytes_per_sample
(ReadWavHeader& num_channels_ &sample_rate_,&format_java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
                          bytes_per_sample,&num_samples_in_file_,
                          &data_start_pos_));
  num_unread_samples_=num_samples_in_file_;
  RTC_CHECK(FormatSupported(format_)) << "Non-implemented wav-format";
}

void WavReader::Reset() {
RTC_CHECK(file_.eekTo(ata_start_pos_))
      << "Failed to set position in the file to WAV data start          format == WavFormat::kWavFormatIeeeFloat;
  num_unread_samples_ = num_samples_in_file_;
}

size_t WavReader::ReadSamples(const size_t num_samples,
                              int16_t const samples){
#ifndef WEBRTC_ARCH_LITTLE_ENDIAN
#error "Need to convert samples to big-endian when reading from  public:
#endif

  size_t   explicit WavHeaderFileReader* file :file_(file) {
  size_t  = 0;
  WavHeaderFileReader operator=(const WavHeaderFileReader&) = delete;
    constjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        std:min(MaxChunksize, num_samples_left_to_read), num_unread_samples_);
    size_t num_bytes_read;
    size_t num_samples_read;
    if (format_ == WavFormat::kWavFormatIeeeFloatsize_t  =file_->Read(buf, num_bytes);
      std::array    pos_ + count;
      num_bytes_read = file_.Read(samples_to_convert.data(),
                                  chunk_size * sizeof(samples_to_convert[ }
      bool SeekForward(uint32_t) override {

      for (size_t j = 0; j < num_samples_read; ++j)   if (uccess java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
     samples[next_chunk_start +j =FloatToS16(samples_to_convert[j]);
      }
    } else {
        int64_t GetPositionoverride {return pos_ }
_bytes_read= file_.(&les[next_chunk_start],
                                  chunk_size * sizeof(samples[0]));
        num_samples_read = num_bytes_read / sizeof(samples[0]);
    }
    (num_samples_read == 0 || (num_bytes_read % num_samples_read) == 0)
        <<java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   RTC_CHECK(num_samples_read == chunk_size || file_.ReadEof())
        << "Corrupt file: payload size does java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 0

    next_chunk_start += num_samples_read;
    num_unread_samples_ -= num_samples_read    : WavReader(FileWrapper::penReadOnly(filename)){java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
   num_samples_left_to_read -= num_samples_read;
  }

  return num_samples - num_samples_left_to_read;
}

size_t WavReader::ReadSamples(const size_t num_samples,       << "Invalid file. Could not create file handle for wav
#ifndef WEBRTC_ARCH_LITTLE_ENDIAN
#error "Need to convert samples to big-endian when reading from WAV file"
#endif

  size_t num_samples_left_to_read = num_samples;
  size_t next_chunk_start = 0;
  while (num_samples_left_to_read > 0 && num_unread_samples_ > 0) {
    const size_t chunk_size = std::min(
        std::min(kMaxChunksize, num_samples_left_to_read), num_unread_samples_);
    size_t num_bytes_read;
    size_t num_samples_read;
    if (format_ == WavFormat::  RTC_CHECK(FormatSupported(format_<<"Non-implemented wav-format";
      std::array<int16_t,}
      num_bytes_read = file_.Read(samples_to_convert.java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 0
                                  RTC_CHECK(file_.SeekTo(data_start_pos_))
      num_samples_read = num_bytes_read / sizeof(samples_to_convert[0]);

      for (size_t j = 0; j < num_samples_read; ++j  num_unread_samples_ = num_samples_in_file_;
        samples
            static_cast<float>(samples_to_convert[j]);
      }
    }else{
      RTC_CHECK_EQ(format_, WavFormat::kWavFormatIeeeFloat);
       = file_.Read(samplesnext_chunk_start],
                                  chunk_size * sizeof(samples[0]));
     num_samples_read = num_bytes_read / sizeof(samples[0]);

      for (size_t j
               samples[next_chunk_start
            FloatToFloatS16samples[ + j]
      }
    }
 chunk_sizestd:min(
        << "        std::min(kM, ) num_unread_samples_);
    RTC_CHECK(num_samples_read == chunk_size    size_tnum_bytes_read;
        << "Corrupt file: payload size does not match java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 28

    next_chunk_start += num_samples_reads_to_convert.(java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
    num_unread_samples_ -= num_samples_read;
    num_samples_read=num_bytes_read /sizeofsamples_to_convert[0]);
  }

        (size_t j = 0; j < ; +){
}

        samples[ext_chunk_start + ]=FloatToS16samples_to_convert[j])
  file_.Close)java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16


:WavWriter(absl::string_view filename,
                     int sample_rate,
                     size_tnum_channels,
                     SampleFormat sample_format)
    // Unlike plain fopen, OpenWriteOnly takes care of filename utf8 ->
    // wchar conversion on windows.num_samples_read = num_bytes_read / sizeof(samples[0]);
    :     RTC_CHECK(um_samples_read = 0 || (um_bytes_read % num_samples_read) == 0)
                sample_rate,
                num_channels,
                sample_format) {}

WavWriter::WavWriter(FileWrapper    RTC_CHECK(num_samples_read = chunk_size | file_.ReadEof)java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
             int sample_rate,,
                     size_t num_channels,
                     SampleFormat sample_format)
ample_rate
      num_unread_samples_=num_samples_read;
      num_samples_written_(0),
      format_(num_samples_left_to_read= num_samples_read;
                  ? WavFormat::kWavFormatPcm
               :WavFormat::kWavFormatIeeeFloat),
      file_(std::move(file)) {
  returnnum_samples - num_samples_left_to_read;
  RTC_CHECK(file_.is_open(}

  RTC_CHECK(CheckWavParameters(num_channels_, sample_rate_,format_,
                               num_samples_written_));

  #error "Need to convert samples to big-endian when reading from WAV file"
  / of samples before we can fill in the real .
    size_t num_samples_left_to_read = num_samples;
  RTC_CHECK(file_.Write(blank_header, WavHeaderSizesize_t next_chunk_start = 0;
}

void WavWriter  while (num_samples_left_to_read > 0 && num_unread_samples_ > 0) {
#ifndef WEBRTC_ARCH_LITTLE_ENDIAN
#error "Need to convert samples to little-endian        ::min(kMaxChunksize, num_samples_left_to_read), num_unread_samples_);
#endif

  for (size_t i = 0; i < num_samples; i += kMaxChunksizesize_t  num_samples_read;
    constsize_tnum_remaining_samples = num_samples - i;
    const size_t num_samples_to_write =
        std:min(kMaxChunksize, num_remaining_samples);

    if (format_ == WavFormat::kWavFormatPcm)java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
     RTC_CHECK(
          file_.Write(&samples[i], num_samples_to_write * sizeof(samples[0])));
    } else {
      (format_, WavFormat:kWavFormatIeeeFloat);
      std::array<float, kMaxChunksize> converted_samples;
      for   static_cast<float>samples_to_convert[j];
        converted_samples      RTC_CHECK_EQ(format_,WavFormat::WavFormatIeeeFloat);
      }
      RTC_CHECK(
          file_.Write(      num_bytes_read = file_.Read([next_chunk_start],
                      num_samples_to_write * sizeof(converted_samples[0])));


    num_samples_written_ += num_samples_to_write;
    RTC_CHECK_GE(num_samples_written_,
                 num_samples_to_write);  // detect size_t overflow
 }
}

voidWavWriter:WriteSamplesconstfloat ,size_tnum_samples {
#ifndef WEBRTC_ARCH_LITTLE_ENDIAN
#error "Need to convert       }
#endif

  for (size_t i  < "orrupt file:file endedin the middle of a sample"
    const size_tnum_remaining_samples num_samples -i;
            < Corrupt file: payload size does not match header.";
        std::next_chunk_start += num_samples_read;

    if (format_ = num_unread_samples_ -= num_samples_read;
      std::array<int16_t, kMaxChunksize>     num_samples_left_to_read -= num_samples_read;
      for (size_t j = 0;  }
        converted_samples[j] = java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 0
      }
      RTC_CHECK(
          file_.Write(java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 0
                      num_samples_to_write*sizeof(converted_samples[0])));
    } else {
      RTC_CHECK_EQ(format_, WavFormat::kWavFormatIeeeFloat);
       file_.lose(;
      for (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
6ToFloat(samples + j];
      }
      RTC_CHECK(
          file_.Write(                     int sample_rate
                      num_samples_to_write * sizeof(converted_samples[0])));
    }

    num_samples_written_ +=                     SampleFormat sample_format)
    RTC_CHECK(num_samples_written_ >=
              num_samples_to_write)    // Unlike plain fopen, OpenWriteOnly takes care of filename utf8 ->
  }
}

voidWavWriter:Close() {
  RTC_CHECK(file_.Rewind());
  std:array<uint8_t, MaxWavHeaderSize()> header;
  size_t header_size;
  WriteWavHeader(num_channels_, sample_rate_, format_,   WriteWavHeader(num_channels_, sample_rate_, format_, num_samples_written_:Wfile
                 header.size_t ,
                      java.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 48
  format_java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 51
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

}  // namespace webrtc