C++ (Cpp) _parse_wav Examples

Example #1

File: wav.c Project: dsully/libmediascan

int
wav_scan(ScanData s)
{
  int ret = 1;
  Buffer buf;
  uint32_t chunk_size;
  
  buffer_init(&buf, BLOCK_SIZE);
  
  if ( !buffer_check_load(&buf, s->fp, 12, BLOCK_SIZE) ) {
    ret = 0;
    goto out;
  }
  
  if ( !strncmp( (char *)buffer_ptr(&buf), "RIFF", 4 ) ) {
    // We've got a RIFF file
    buffer_consume(&buf, 4);
  
    chunk_size = buffer_get_int_le(&buf);
    
    // Check format
    if ( strncmp( (char *)buffer_ptr(&buf), "WAVE", 4 ) ) {
      LOG_ERROR("Invalid WAV file: missing WAVE header: %s\n", s->path);
      ret = 0;
      goto out;
    }
    
    buffer_consume(&buf, 4);
    
    _parse_wav(s, &buf);
  }
  else if ( !strncmp( (char *)buffer_ptr(&buf), "FORM", 4 ) ) {
    // We've got an AIFF file
    char *bptr;
    
    buffer_consume(&buf, 4);
    
    chunk_size = buffer_get_int(&buf);
    
    // Check format
    bptr = buffer_ptr(&buf);
    if ( bptr[0] == 'A' && bptr[1] == 'I' && bptr[2] == 'F' && (bptr[3] == 'F' || bptr[3] == 'C') ) {
      buffer_consume(&buf, 4);

      //_parse_aiff(s, &buf);
    }
    else {
      LOG_ERROR("Invalid AIFF file: missing AIFF header: %s\n", s->path);
      ret = 0;
      goto out;
    }
  }
  else {
    LOG_ERROR("Invalid WAV file: missing RIFF header: %s\n", s->path);
    ret = 0;
    goto out;
  }
  
out:
  buffer_free(&buf);
  
  return ret;
}

Example #2

File: wav.c Project: Excito/libaudio-scan-perl

static int
get_wav_metadata(PerlIO *infile, char *file, HV *info, HV *tags)
{
  Buffer buf;
  off_t file_size;
  int err = 0;
  uint32_t chunk_size;
  
  file_size = _file_size(infile);
  
  buffer_init(&buf, WAV_BLOCK_SIZE);
  
  if ( !_check_buf(infile, &buf, 12, WAV_BLOCK_SIZE) ) {
    err = -1;
    goto out;
  }
  
  if ( !strncmp( (char *)buffer_ptr(&buf), "RIFF", 4 ) ) {
    // We've got a RIFF file
    buffer_consume(&buf, 4);
  
    chunk_size = buffer_get_int_le(&buf);
    
    // Check format
    if ( strncmp( (char *)buffer_ptr(&buf), "WAVE", 4 ) ) {
      PerlIO_printf(PerlIO_stderr(), "Invalid WAV file: missing WAVE header: %s\n", file);
      err = -1;
      goto out;
    }
    
    buffer_consume(&buf, 4);
    
    my_hv_store( info, "file_size", newSVuv(file_size) );
    
    _parse_wav(infile, &buf, file, file_size, info, tags);
  }
  else if ( !strncmp( (char *)buffer_ptr(&buf), "FORM", 4 ) ) {
    // We've got an AIFF file
    char *bptr;
    
    buffer_consume(&buf, 4);
    
    chunk_size = buffer_get_int(&buf);
    
    // Check format
    bptr = buffer_ptr(&buf);
    if ( bptr[0] == 'A' && bptr[1] == 'I' && bptr[2] == 'F' && (bptr[3] == 'F' || bptr[3] == 'C') ) {
      buffer_consume(&buf, 4);

      my_hv_store( info, "file_size", newSVuv(file_size) );

      _parse_aiff(infile, &buf, file, file_size, info, tags);
    }
    else {
      PerlIO_printf(PerlIO_stderr(), "Invalid AIFF file: missing AIFF header: %s\n", file);
      err = -1;
      goto out;
    }
  }
  else {
    PerlIO_printf(PerlIO_stderr(), "Invalid WAV file: missing RIFF header: %s\n", file);
    err = -1;
    goto out;
  }
  
out:
  buffer_free(&buf);

  if (err) return err;

  return 0;
}