macros.h 1.2 KB

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  1. /*
  2. * This file is part of FFmpeg.
  3. *
  4. * FFmpeg is free software; you can redistribute it and/or
  5. * modify it under the terms of the GNU Lesser General Public
  6. * License as published by the Free Software Foundation; either
  7. * version 2.1 of the License, or (at your option) any later version.
  8. *
  9. * FFmpeg is distributed in the hope that it will be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. * Lesser General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU Lesser General Public
  15. * License along with FFmpeg; if not, write to the Free Software
  16. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17. */
  18. /**
  19. * @file
  20. * @ingroup lavu
  21. * Utility Preprocessor macros
  22. */
  23. #ifndef AVUTIL_MACROS_H
  24. #define AVUTIL_MACROS_H
  25. /**
  26. * @addtogroup preproc_misc Preprocessor String Macros
  27. *
  28. * String manipulation macros
  29. *
  30. * @{
  31. */
  32. #define AV_STRINGIFY(s) AV_TOSTRING(s)
  33. #define AV_TOSTRING(s) #s
  34. #define AV_GLUE(a, b) a ## b
  35. #define AV_JOIN(a, b) AV_GLUE(a, b)
  36. /**
  37. * @}
  38. */
  39. #define AV_PRAGMA(s) _Pragma(#s)
  40. #define FFALIGN(x, a) (((x)+(a)-1)&~((a)-1))
  41. #endif /* AVUTIL_MACROS_H */