quicktime/stbl.c

   1 #include "funcprotos.h"
   2 #include "quicktime.h"
   3
   4 void quicktime_stbl_init(quicktime_stbl_t *stbl)
   5 {
   6         stbl->version = 0;
   7         stbl->flags = 0;
   8         quicktime_stsd_init(&(stbl->stsd));
   9         quicktime_stts_init(&(stbl->stts));
  10         quicktime_stss_init(&(stbl->stss));
  11         quicktime_stsc_init(&(stbl->stsc));
  12         quicktime_stsz_init(&(stbl->stsz));
  13         quicktime_stco_init(&(stbl->stco));
  14 }
  15
  16 void quicktime_stbl_init_video(quicktime_t *file,
  17                                                                 quicktime_stbl_t *stbl,
  18                                                                 int frame_w,
  19                                                                 int frame_h,
  20                                                                 int time_scale,
  21                                                                 float frame_rate,
  22                                                                 char *compressor)
  23 {
  24 //printf("quicktime_stbl_init_video 1\n");
  25         quicktime_stsd_init_video(file, &(stbl->stsd), frame_w, frame_h, frame_rate, compressor);
  26 //printf("quicktime_stbl_init_video 1 %d %f\n", time_scale, frame_rate);
  27         quicktime_stts_init_video(file, &(stbl->stts), time_scale, frame_rate);
  28 //printf("quicktime_stbl_init_video 1\n");
  29         quicktime_stsc_init_video(file, &(stbl->stsc));
  30 //printf("quicktime_stbl_init_video 1\n");
  31         quicktime_stsz_init_video(file, &(stbl->stsz));
  32 //printf("quicktime_stbl_init_video 1\n");
  33         quicktime_stco_init_common(file, &(stbl->stco));
  34 //printf("quicktime_stbl_init_video 2\n");
  35 }
  36
  37
  38 void quicktime_stbl_init_audio(quicktime_t *file,
  39                                                         quicktime_stbl_t *stbl,
  40                                                         int channels,
  41                                                         int sample_rate,
  42                                                         int bits,
  43                                                         char *compressor)
  44 {
  45         quicktime_stsd_init_audio(file, &(stbl->stsd),
  46                 channels,
  47                 sample_rate,
  48                 bits,
  49                 compressor);
  50         quicktime_stts_init_audio(file, &(stbl->stts), sample_rate);
  51         quicktime_stsc_init_audio(file, &(stbl->stsc), sample_rate);
  52         quicktime_stsz_init_audio(file, &(stbl->stsz), channels, bits, compressor);
  53         quicktime_stco_init_common(file, &(stbl->stco));
  54 }
  55
  56 void quicktime_stbl_delete(quicktime_stbl_t *stbl)
  57 {
  58         quicktime_stsd_delete(&(stbl->stsd));
  59         quicktime_stts_delete(&(stbl->stts));
  60         quicktime_stss_delete(&(stbl->stss));
  61         quicktime_stsc_delete(&(stbl->stsc));
  62         quicktime_stsz_delete(&(stbl->stsz));
  63         quicktime_stco_delete(&(stbl->stco));
  64 }
  65
  66 void quicktime_stbl_dump(void *minf_ptr, quicktime_stbl_t *stbl)
  67 {
  68         printf("    sample table\n");
  69         quicktime_stsd_dump(minf_ptr, &(stbl->stsd));
  70         quicktime_stts_dump(&(stbl->stts));
  71         quicktime_stss_dump(&(stbl->stss));
  72         quicktime_stsc_dump(&(stbl->stsc));
  73         quicktime_stsz_dump(&(stbl->stsz));
  74         quicktime_stco_dump(&(stbl->stco));
  75 }
  76
  77 int quicktime_read_stbl(quicktime_t *file, quicktime_minf_t *minf, quicktime_stbl_t *stbl, quicktime_atom_t *parent_atom)
  78 {
  79         quicktime_atom_t leaf_atom;
  80
  81         do
  82         {
  83                 quicktime_atom_read_header(file, &leaf_atom);
  84
  85 //printf("quicktime_read_stbl 1\n");
  86 /* mandatory */
  87                 if(quicktime_atom_is(&leaf_atom, "stsd"))
  88                 {
  89                         quicktime_read_stsd(file, minf, &(stbl->stsd));
  90 /* Some codecs store extra information at the end of this */
  91                         quicktime_atom_skip(file, &leaf_atom);
  92                 }
  93                 else
  94                 if(quicktime_atom_is(&leaf_atom, "stts"))
  95                         { quicktime_read_stts(file, &(stbl->stts)); }
  96                 else
  97                 if(quicktime_atom_is(&leaf_atom, "stss"))
  98                         { quicktime_read_stss(file, &(stbl->stss)); }
  99                 else
 100                 if(quicktime_atom_is(&leaf_atom, "stsc"))
 101                 {
 102                         quicktime_read_stsc(file, &(stbl->stsc));
 103 /*
 104  * Minolta DimageZ3 pads stsc with zeroes
 105  * so we need to jump to next atom explicitly
 106  */
 107                         quicktime_atom_skip(file, &leaf_atom);
 108                 }
 109                 else
 110                 if(quicktime_atom_is(&leaf_atom, "stsz"))
 111                         { quicktime_read_stsz(file, &(stbl->stsz)); }
 112                 else
 113                 if(quicktime_atom_is(&leaf_atom, "co64"))
 114                         { quicktime_read_stco64(file, &(stbl->stco)); }
 115                 else
 116                 if(quicktime_atom_is(&leaf_atom, "stco"))
 117                         { quicktime_read_stco(file, &(stbl->stco)); }
 118                 else
 119                 {
 120                         quicktime_atom_skip(file, &leaf_atom);
 121                 }
 122         }while(quicktime_position(file) < parent_atom->end);
 123
 124         return 0;
 125 }
 126
 127 void quicktime_write_stbl(quicktime_t *file, quicktime_minf_t *minf, quicktime_stbl_t *stbl)
 128 {
 129         quicktime_atom_t atom;
 130         quicktime_atom_write_header(file, &atom, "stbl");
 131
 132         quicktime_write_stsd(file, minf, &(stbl->stsd));
 133         quicktime_write_stts(file, &(stbl->stts));
 134         quicktime_write_stss(file, &(stbl->stss));
 135         quicktime_write_stsc(file, &(stbl->stsc));
 136         quicktime_write_stsz(file, &(stbl->stsz));
 137         quicktime_write_stco(file, &(stbl->stco));
 138
 139         quicktime_atom_write_footer(file, &atom);
 140 }
 141
 142