partial_transport_stream_descriptor.h 2.0 KB

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  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_PARTIAL_TRANSPORT_STREAM_DESCRIPTOR
  22. #define _UCSI_DVB_PARTIAL_TRANSPORT_STREAM_DESCRIPTOR 1
  23. #ifdef __cplusplus
  24. extern "C"
  25. {
  26. #endif
  27. #include <libucsi/descriptor.h>
  28. #include <libucsi/endianops.h>
  29. /**
  30. * dvb_partial_transport_stream_descriptor structure.
  31. */
  32. struct dvb_partial_transport_stream_descriptor {
  33. struct descriptor d;
  34. EBIT6(uint64_t reserved : 2; ,
  35. uint64_t peak_rate :22; ,
  36. uint64_t reserved_2 : 2; ,
  37. uint64_t minimum_overall_smoothing_rate :22; ,
  38. uint64_t reserved_3 : 2; ,
  39. uint64_t maximum_overall_smoothing_rate :14; );
  40. } __ucsi_packed;
  41. /**
  42. * Process a dvb_partial_transport_stream_descriptor.
  43. *
  44. * @param d Generic descriptor pointer.
  45. * @return dvb_partial_transport_stream_descriptor pointer, or NULL on error.
  46. */
  47. static inline struct dvb_partial_transport_stream_descriptor*
  48. dvb_partial_transport_stream_descriptor_codec(struct descriptor* d)
  49. {
  50. if (d->len != (sizeof(struct dvb_partial_transport_stream_descriptor) - 2))
  51. return NULL;
  52. bswap64((uint8_t*) d + 2);
  53. return (struct dvb_partial_transport_stream_descriptor*) d;
  54. }
  55. #ifdef __cplusplus
  56. }
  57. #endif
  58. #endif