atom_stbl.cpp 1.7 KB

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  1. /*
  2. * The contents of this file are subject to the Mozilla Public
  3. * License Version 1.1 (the "License"); you may not use this file
  4. * except in compliance with the License. You may obtain a copy of
  5. * the License at http://www.mozilla.org/MPL/
  6. *
  7. * Software distributed under the License is distributed on an "AS
  8. * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
  9. * implied. See the License for the specific language governing
  10. * rights and limitations under the License.
  11. *
  12. * The Original Code is MPEG4IP.
  13. *
  14. * The Initial Developer of the Original Code is Cisco Systems Inc.
  15. * Portions created by Cisco Systems Inc. are
  16. * Copyright (C) Cisco Systems Inc. 2001. All Rights Reserved.
  17. *
  18. * Contributor(s):
  19. * Dave Mackie [email protected]
  20. */
  21. #include "mp4common.h"
  22. MP4StblAtom::MP4StblAtom()
  23. : MP4Atom("stbl")
  24. {
  25. ExpectChildAtom("stsd", Required, OnlyOne);
  26. ExpectChildAtom("stts", Required, OnlyOne);
  27. ExpectChildAtom("ctts", Optional, OnlyOne);
  28. ExpectChildAtom("stsz", Required, OnlyOne);
  29. ExpectChildAtom("stz2", Optional, OnlyOne);
  30. ExpectChildAtom("stsc", Required, OnlyOne);
  31. ExpectChildAtom("stco", Optional, OnlyOne);
  32. ExpectChildAtom("co64", Optional, OnlyOne);
  33. ExpectChildAtom("stss", Optional, OnlyOne);
  34. ExpectChildAtom("stsh", Optional, OnlyOne);
  35. ExpectChildAtom("stdp", Optional, OnlyOne);
  36. }
  37. void MP4StblAtom::Generate()
  38. {
  39. // as usual
  40. MP4Atom::Generate();
  41. // but we also need one of the chunk offset atoms
  42. MP4Atom* pChunkOffsetAtom;
  43. if (m_pFile->Use64Bits(GetType())) {
  44. pChunkOffsetAtom = CreateAtom("co64");
  45. } else {
  46. pChunkOffsetAtom = CreateAtom("stco");
  47. }
  48. AddChildAtom(pChunkOffsetAtom);
  49. // and ask it to self generate
  50. pChunkOffsetAtom->Generate();
  51. }