File: qt_stbl.c

package info (click to toggle)
gmerlin-avdecoder 2.0.0~svn6298~dfsg0-3
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 6,112 kB
  • sloc: ansic: 94,580; sh: 705; makefile: 705; awk: 43; sed: 16
file content (136 lines) | stat: -rw-r--r-- 3,989 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
/*****************************************************************
 * gmerlin-avdecoder - a general purpose multimedia decoding library
 *
 * Copyright (c) 2001 - 2012 Members of the Gmerlin project
 * gmerlin-general@lists.sourceforge.net
 * http://gmerlin.sourceforge.net
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * *****************************************************************/


#include <string.h>
#include <stdlib.h>

#include <avdec_private.h>

#include <qt.h>


/*

typedef struct
  {
  qt_atom_header_t h;

  qt_stts_t stts;
  qt_stss_t stss;
  qt_stsd_t stsd;
  qt_stsz_t stsz;
  qt_stsc_t stsc;
  qt_stco_t stco;
  } qt_stbl_t;
*/

int bgav_qt_stbl_read(qt_atom_header_t * h, bgav_input_context_t * input,
                      qt_stbl_t * ret, qt_minf_t * minf)
  {
  qt_atom_header_t ch; /* Child header */
  memcpy(&ret->h, h, sizeof(*h));

  while(input->position < h->start_position + h->size)
    {
    if(!bgav_qt_atom_read_header(input, &ch))
      return 0;
    switch(ch.fourcc)
      {
      case BGAV_MK_FOURCC('s', 't', 't', 's'):
        if(!bgav_qt_stts_read(&ch, input, &ret->stts))
          return 0;
        break;
      case BGAV_MK_FOURCC('c', 't', 't', 's'):
        if(!bgav_qt_stts_read(&ch, input, &ret->ctts))
          return 0;
        // bgav_qt_ctts_shift(&ret->ctts);
        ret->has_ctts = 1;
        break;
      case BGAV_MK_FOURCC('s', 't', 's', 's'):
        if(!bgav_qt_stss_read(&ch, input, &ret->stss))
          return 0;
        ret->has_stss = 1;
        break;
      case BGAV_MK_FOURCC('s', 't', 'p', 's'):
        if(!bgav_qt_stss_read(&ch, input, &ret->stps))
          return 0;
        ret->has_stps = 1;
        break;
      case BGAV_MK_FOURCC('s', 't', 's', 'd'):
        /* Read stsd */
        if(!bgav_qt_stsd_read(&ch, input, &ret->stsd))
          return 0;
        break;
      case BGAV_MK_FOURCC('s', 't', 's', 'z'):
        if(!bgav_qt_stsz_read(&ch, input, &ret->stsz))
          return 0;
        break;
      case BGAV_MK_FOURCC('s', 't', 's', 'c'):
        if(!bgav_qt_stsc_read(&ch, input, &ret->stsc))
          return 0;
        break;
      case BGAV_MK_FOURCC('s', 't', 'c', 'o'):
        if(!bgav_qt_stco_read(&ch, input, &ret->stco))
          return 0;
        break;
      case BGAV_MK_FOURCC('c', 'o', '6', '4'):
        if(!bgav_qt_stco_read_64(&ch, input, &ret->stco))
          return 0;
        break;
      default:
        bgav_qt_atom_skip_unknown(input, &ch, h->fourcc);
        break;
      }
    bgav_qt_atom_skip(input, &ch);
    }
  return 1;
  }

void bgav_qt_stbl_free(qt_stbl_t * c)
  {
  bgav_qt_stts_free(&c->ctts);
  bgav_qt_stts_free(&c->stts);
  bgav_qt_stss_free(&c->stss);
  bgav_qt_stss_free(&c->stps);
  bgav_qt_stsd_free(&c->stsd);
  bgav_qt_stsz_free(&c->stsz);
  bgav_qt_stsc_free(&c->stsc);
  bgav_qt_stco_free(&c->stco);
  }

void bgav_qt_stbl_dump(int indent, qt_stbl_t * c)
  {
  bgav_diprintf(indent, "stbl\n");
  bgav_qt_stsd_dump(indent+2, &c->stsd);
  bgav_qt_stts_dump(indent+2, &c->stts);
  if(c->stss.num_entries)
    bgav_qt_stss_dump(indent+2, &c->stss);
  bgav_qt_stsz_dump(indent+2, &c->stsz);
  bgav_qt_stsc_dump(indent+2, &c->stsc);
  bgav_qt_stco_dump(indent+2, &c->stco);
  if(c->has_ctts)
    bgav_qt_stts_dump(indent+2, &c->ctts);
  if(c->has_stps)
    bgav_qt_stss_dump(indent+2, &c->stps);
    
  bgav_diprintf(indent, "end of stbl\n");
  }