default_authority_descriptor.h 2.3 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182
  1. /*
  2. * section and descriptor parser
  3. *
  4. * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
  5. * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
  6. *
  7. * This library is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU Lesser General Public
  9. * License as published by the Free Software Foundation; either
  10. * version 2.1 of the License, or (at your option) any later version.
  11. *
  12. * This library is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15. * Lesser General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Lesser General Public
  18. * License along with this library; if not, write to the Free Software
  19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
  20. */
  21. #ifndef _UCSI_DVB_DEFAULT_AUTHORITY_DESCRIPTOR
  22. #define _UCSI_DVB_DEFAULT_AUTHORITY_DESCRIPTOR 1
  23. #ifdef __cplusplus
  24. extern "C"
  25. {
  26. #endif
  27. #include <libucsi/descriptor.h>
  28. #include <libucsi/endianops.h>
  29. /**
  30. * dvb_default_authority_descriptor structure.
  31. */
  32. struct dvb_default_authority_descriptor {
  33. struct descriptor d;
  34. /* char name[] */
  35. } __ucsi_packed;
  36. /**
  37. * Process a dvb_default_authority_descriptor.
  38. *
  39. * @param d Generic descriptor pointer.
  40. * @return dvb_default_authority_descriptor pointer, or NULL on error.
  41. */
  42. static inline struct dvb_default_authority_descriptor*
  43. dvb_default_authority_descriptor_codec(struct descriptor* d)
  44. {
  45. return (struct dvb_default_authority_descriptor*) d;
  46. }
  47. /**
  48. * Accessor for the name field in a dvb_default_authority_descriptor.
  49. *
  50. * @param d dvb_default_authority_descriptor pointer.
  51. * @return Pointer to the field.
  52. */
  53. static inline uint8_t *
  54. dvb_default_authority_descriptor_name(struct dvb_default_authority_descriptor *d)
  55. {
  56. return (uint8_t *) d + sizeof(struct dvb_default_authority_descriptor);
  57. }
  58. /**
  59. * Calculate the length of the name field in a dvb_default_authority_descriptor.
  60. *
  61. * @param d dvb_default_authority_descriptor pointer.
  62. * @return Length of the field in bytes.
  63. */
  64. static inline int
  65. dvb_default_authority_descriptor_name_length(struct dvb_default_authority_descriptor *d)
  66. {
  67. return d->d.len;
  68. }
  69. #ifdef __cplusplus
  70. }
  71. #endif
  72. #endif