Method SaveHeader

stream_audio/osfarchive.cpp:177–225

write out operations.

//	write out operations.
bool OSFArchive::SaveHeader(uint8_t type, uint8_t comp, uint8_t flags, uint32_t rate, uint32_t length, void *hdr, const char *name) {
  char chbuf[OSF_HDR_SIZE];
  int hdrstart, hdrcur;

  if (!m_fp || !m_writemode)
    return false;

  //	write out data.
  try {
    char osftitle[OSF_HDR_TITLE_LEN];
    memset((uint8_t *)chbuf, 0, OSF_HDR_SIZE);
    cf_WriteBytes((uint8_t *)chbuf, OSF_HDR_SIZE, m_fp);
    cfseek(m_fp, -OSF_HDR_SIZE, SEEK_CUR);

    hdrstart = cftell(m_fp);
    if (!cf_WriteBytes((uint8_t *)OSF_TAG, strlen(OSF_TAG), m_fp))
      return false;

    cf_WriteByte(m_fp, (int8_t)type);
    cf_WriteByte(m_fp, (int8_t)comp);
    cf_WriteByte(m_fp, (int8_t)flags);

    if (type == OSF_DIGITAL_STRM) {
      tOSFDigiHdr *digihdr = (tOSFDigiHdr *)hdr;
      cf_WriteByte(m_fp, (rate == 11025) ? 11 : (rate == 22050) ? 22 : (rate == 44100) ? 44 : 0);
      cf_WriteInt(m_fp, (int)digihdr->measure);
    } else {
      return false;
    }

    cf_WriteInt(m_fp, (int)length);
    hdrcur = cftell(m_fp);

    if ((hdrcur - hdrstart) > OSF_HDR_TITLE_OFS) {
      mprintf(0, "stream header too big for title!\n");
      return false;
    }

    cfseek(m_fp, OSF_HDR_TITLE_OFS - (hdrcur - hdrstart), SEEK_CUR);
    strncpy(osftitle, name, OSF_HDR_TITLE_LEN);
    osftitle[OSF_HDR_TITLE_LEN - 1] = 0;
    if (!cf_WriteBytes((uint8_t *)name, OSF_HDR_TITLE_LEN, m_fp))
      return false;
  } catch (...) {
    return false;
  }

  return true;
}

bool OSFArchive::WriteBlock(uint8_t *blk, int size) { return (cf_WriteBytes(blk, size, m_fp) < size) ? false : true; }