ts.h 2.8 KB

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  1. /**********************************************************************************************/
  2. /* The MIT License */
  3. /* */
  4. /* Copyright 2016-2016 Twitch Interactive, Inc. or its affiliates. All Rights Reserved. */
  5. /* */
  6. /* Permission is hereby granted, free of charge, to any person obtaining a copy */
  7. /* of this software and associated documentation files (the "Software"), to deal */
  8. /* in the Software without restriction, including without limitation the rights */
  9. /* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell */
  10. /* copies of the Software, and to permit persons to whom the Software is */
  11. /* furnished to do so, subject to the following conditions: */
  12. /* */
  13. /* The above copyright notice and this permission notice shall be included in */
  14. /* all copies or substantial portions of the Software. */
  15. /* */
  16. /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR */
  17. /* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, */
  18. /* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE */
  19. /* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER */
  20. /* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, */
  21. /* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN */
  22. /* THE SOFTWARE. */
  23. /**********************************************************************************************/
  24. #ifndef LIBCAPTION_TS_H
  25. #define LIBCAPTION_TS_H
  26. #include "caption.h"
  27. typedef struct {
  28. int16_t pmtpid;
  29. int16_t avcpid;
  30. int64_t pts;
  31. int64_t dts;
  32. size_t size;
  33. const uint8_t* data;
  34. } ts_t;
  35. /*! \brief
  36. \param
  37. Expects 188 byte TS packet
  38. */
  39. #define TS_PACKET_SIZE 188
  40. void ts_init (ts_t* ts);
  41. int ts_parse_packet (ts_t* ts, const uint8_t* data);
  42. // return timestamp in seconds
  43. static inline double ts_dts_seconds (ts_t* ts) { return ts->dts / 90000.0; }
  44. static inline double ts_pts_seconds (ts_t* ts) { return ts->pts / 90000.0; }
  45. static inline double ts_cts_seconds (ts_t* ts) { return (ts->dts - ts->pts) / 90000.0; }
  46. #endif