C++ (Cpp) kt_get_a_bps Exemples

Exemple #1

Fichier : xtr_wav.cpp Projet : Azpidatziak/mkvtoolnix

void
xtr_wav_c::create_file(xtr_base_c *master,
                       KaxTrackEntry &track) {
  init_content_decoder(track);

  int channels = kt_get_a_channels(track);
  int sfreq    = (int)kt_get_a_sfreq(track);
  int bps      = kt_get_a_bps(track);

  if (-1 == bps)
    mxerror(boost::format(Y("Track %1% with the CodecID '%2%' is missing the \"bits per second (bps)\" element and cannot be extracted.\n")) % m_tid % m_codec_id);

  xtr_base_c::create_file(master, track);

  memcpy(&m_wh.riff.id,      "RIFF", 4);
  memcpy(&m_wh.riff.wave_id, "WAVE", 4);
  memcpy(&m_wh.format.id,    "fmt ", 4);
  memcpy(&m_wh.data.id,      "data", 4);

  put_uint32_le(&m_wh.format.len,              16);
  put_uint16_le(&m_wh.common.wFormatTag,        1);
  put_uint16_le(&m_wh.common.wChannels,        channels);
  put_uint32_le(&m_wh.common.dwSamplesPerSec,  sfreq);
  put_uint32_le(&m_wh.common.dwAvgBytesPerSec, channels * sfreq * bps / 8);
  put_uint16_le(&m_wh.common.wBlockAlign,       4);
  put_uint16_le(&m_wh.common.wBitsPerSample,   bps);

  m_out->write(&m_wh, sizeof(wave_header));
}

Exemple #2

Fichier : xtr_tta.cpp Projet : CharlesLio/mkvtoolnix

void
xtr_tta_c::create_file(xtr_base_c *,
                       KaxTrackEntry &track) {
  try {
    m_out = mm_write_buffer_io_c::open(m_temp_file_name, 5 * 1024 * 1024);
  } catch (mtx::mm_io::exception &ex) {
    mxerror(boost::format(Y("Failed to create the temporary file '%1%': %2%\n")) % m_temp_file_name % ex);
  }

  m_bps      = kt_get_a_bps(track);
  m_channels = kt_get_a_channels(track);
  m_sfreq    = (int)kt_get_a_sfreq(track);
}

Exemple #3

Fichier : xtr_wav.cpp Projet : Rodeo314/mkvtoolnix

void
xtr_wav_c::create_file(xtr_base_c *master,
                       KaxTrackEntry &track) {
  init_content_decoder(track);

  auto channels    = kt_get_a_channels(track);
  auto sfreq       = static_cast<int>(kt_get_a_sfreq(track));
  auto bps         = kt_get_a_bps(track);
  auto block_align = bps * channels / boost::math::gcd(8, bps);


  if (-1 == bps)
    mxerror(boost::format(Y("Track %1% with the CodecID '%2%' is missing the \"bits per second (bps)\" element and cannot be extracted.\n")) % m_tid % m_codec_id);

  xtr_base_c::create_file(master, track);

  memcpy(&m_wh.riff.id,      "RIFF", 4);
  memcpy(&m_wh.riff.wave_id, "WAVE", 4);
  memcpy(&m_wh.format.id,    "fmt ", 4);
  memcpy(&m_wh.data.id,      "data", 4);

  put_uint32_le(&m_wh.format.len,              16);
  put_uint16_le(&m_wh.common.wFormatTag,        1);
  put_uint16_le(&m_wh.common.wChannels,        channels);
  put_uint32_le(&m_wh.common.dwSamplesPerSec,  sfreq);
  put_uint32_le(&m_wh.common.dwAvgBytesPerSec, channels * sfreq * bps / 8);
  put_uint16_le(&m_wh.common.wBlockAlign,      block_align);
  put_uint16_le(&m_wh.common.wBitsPerSample,   bps);

  m_out->write(&m_wh, sizeof(wave_header));

  if (m_codec_id == MKV_A_PCM_BE)
    m_byte_swapper = [bps](unsigned char const *src, unsigned char *dst, std::size_t num_bytes) {
      mtx::bytes::swap_buffer(src, dst, num_bytes, bps / 8);
    };
}