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stbl.c
资源名称：quicktime4linux-1.0.0.tar.gz　[点击查看]
上传用户：luping1608
上传日期：2007-01-06
资源大小：38k
文件大小：3k
源码类别：

多媒体

开发平台：

Unix_Linux

stbl.c：源码内容
  1. #include "quicktime.h"
  3. int quicktime_stbl_init(quicktime_stbl_t *stbl)
  4. {
  5. stbl->version = 0;
  6. stbl->flags = 0;
  7. quicktime_stsd_init(&(stbl->stsd));
  8. quicktime_stts_init(&(stbl->stts));
  9. quicktime_stss_init(&(stbl->stss));
  10. quicktime_stsc_init(&(stbl->stsc));
  11. quicktime_stsz_init(&(stbl->stsz));
  12. quicktime_stco_init(&(stbl->stco));
  13. }
  15. int quicktime_stbl_init_video(quicktime_t *file, 
  16. quicktime_stbl_t *stbl, 
  17. int frame_w,
  18. int frame_h, 
  19. float frame_rate,
  20. char *compressor)
  21. {
  22. quicktime_stsd_init_video(file, &(stbl->stsd), frame_w, frame_h, frame_rate, compressor);
  23. quicktime_stts_init_video(file, &(stbl->stts), frame_rate);
  24. quicktime_stsc_init_video(file, &(stbl->stsc));
  25. quicktime_stsz_init_video(file, &(stbl->stsz));
  26. quicktime_stco_init_common(file, &(stbl->stco));
  27. }
  30. int quicktime_stbl_init_audio(quicktime_t *file, 
  31. quicktime_stbl_t *stbl, 
  32. int channels, 
  33. int sample_rate, 
  34. int bits, 
  35. char *compressor)
  36. {
  37. quicktime_stsd_init_audio(file, &(stbl->stsd), channels, sample_rate, bits, compressor);
  38. quicktime_stts_init_audio(file, &(stbl->stts), sample_rate);
  39. quicktime_stsc_init_audio(file, &(stbl->stsc), sample_rate);
  40. quicktime_stsz_init_audio(file, &(stbl->stsz), channels, bits);
  41. quicktime_stco_init_common(file, &(stbl->stco));
  42. }
  44. int quicktime_stbl_delete(quicktime_stbl_t *stbl)
  45. {
  46. quicktime_stsd_delete(&(stbl->stsd));
  47. quicktime_stts_delete(&(stbl->stts));
  48. quicktime_stss_delete(&(stbl->stss));
  49. quicktime_stsc_delete(&(stbl->stsc));
  50. quicktime_stsz_delete(&(stbl->stsz));
  51. quicktime_stco_delete(&(stbl->stco));
  52. }
  54. int quicktime_stbl_dump(void *minf_ptr, quicktime_stbl_t *stbl)
  55. {
  56. printf("    sample tablen");
  57. quicktime_stsd_dump(minf_ptr, &(stbl->stsd));
  58. quicktime_stts_dump(&(stbl->stts));
  59. quicktime_stss_dump(&(stbl->stss));
  60. quicktime_stsc_dump(&(stbl->stsc));
  61. quicktime_stsz_dump(&(stbl->stsz));
  62. quicktime_stco_dump(&(stbl->stco));
  63. }
  65. int quicktime_read_stbl(quicktime_t *file, quicktime_minf_t *minf, quicktime_stbl_t *stbl, quicktime_atom_t *parent_atom)
  66. {
  67. quicktime_atom_t leaf_atom;
  69. do
  70. {
  71. quicktime_atom_read_header(file->stream, &leaf_atom);
  73. // mandatory
  74. if(quicktime_atom_is(&leaf_atom, "stsd"))
  75. { 
  76. quicktime_read_stsd(file, minf, &(stbl->stsd)); 
  77. quicktime_atom_skip(file, &leaf_atom);
  78. }
  79. else
  80. if(quicktime_atom_is(&leaf_atom, "stts"))
  81. { quicktime_read_stts(file, &(stbl->stts)); }
  82. else
  83. if(quicktime_atom_is(&leaf_atom, "stss"))
  84. { quicktime_read_stss(file, &(stbl->stss)); }
  85. else
  86. if(quicktime_atom_is(&leaf_atom, "stsc"))
  87. { quicktime_read_stsc(file, &(stbl->stsc)); }
  88. else
  89. if(quicktime_atom_is(&leaf_atom, "stsz"))
  90. { quicktime_read_stsz(file, &(stbl->stsz)); }
  91. else
  92. if(quicktime_atom_is(&leaf_atom, "stco"))
  93. { quicktime_read_stco(file, &(stbl->stco)); }
  94. else
  95. quicktime_atom_skip(file, &leaf_atom);
  96. }while(quicktime_position(file) < parent_atom->end);
  98. return 0;
  99. }
  101. int quicktime_write_stbl(quicktime_t *file, quicktime_minf_t *minf, quicktime_stbl_t *stbl)
  102. {
  103. quicktime_atom_t atom;
  104. quicktime_atom_write_header(file, &atom, "stbl");
  106. quicktime_write_stsd(file, minf, &(stbl->stsd));
  107. quicktime_write_stts(file, &(stbl->stts));
  108. quicktime_write_stss(file, &(stbl->stss));
  109. quicktime_write_stsc(file, &(stbl->stsc));
  110. quicktime_write_stsz(file, &(stbl->stsz));
  111. quicktime_write_stco(file, &(stbl->stco));
  113. quicktime_atom_write_footer(file, &atom);
  114. }