Mercurial > libedl

annotate src/datatypes.c @ 8:0c98b46eaf73 v2.0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
*: update API to 2.0, big changes all APIs now use pointers to an EDL object. it is up to the user to make sure that the pointer is valid. additionally, many things have been separated into new files to make it easier to digest
author Paper <paper@paper.us.eu.org>
date Sun, 03 Mar 2024 17:56:58 -0500
parents
children 0cc2555db371
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
1 #include "datatypes.h"
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
2 #include "util.h"
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
3
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
4 #include <stdlib.h>
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
5 #include <string.h>
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
6 #include <stdio.h>
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
7
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
8 static size_t EDL_internal_append_offset(const char* input, size_t offset, size_t length) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
9 size_t s = 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
10
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
11 s += strchr(&input[offset + s], ';') - &input[offset];
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
12 if (s + offset > length)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
13 return s;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
14
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
15 s += strspn(&input[offset + s], ";\t ");
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
16 if (s + offset > length)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
17 return s;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
18
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
19 return s;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
20 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
21
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
22 size_t EDL_internal_parse_int(const char* input, size_t offset, size_t length, int* int_return) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
23 if (offset > length)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
24 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
25
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
26 {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
27 char* ptr_return;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
28 *int_return = strtol(&input[offset], &ptr_return, 10);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
29
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
30 if (!ptr_return)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
31 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
32 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
33
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
34 return EDL_internal_append_offset(input, offset, length);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
35 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
36
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
37 size_t EDL_internal_parse_double(const char* input, size_t offset, size_t length, double* double_return) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
38 if (offset > length)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
39 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
40
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
41 {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
42 char* ptr_return;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
43 *double_return = strtod(&input[offset], &ptr_return);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
44
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
45 if (!ptr_return)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
46 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
47 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
48
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
49 return EDL_internal_append_offset(input, offset, length);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
50 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
51
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
52 size_t EDL_internal_parse_bool(const char* input, size_t offset, size_t length, bool* bool_return) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
53 if (offset > length)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
54 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
55
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
56 if (!strncmp(&input[offset], "TRUE", 4))
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
57 *bool_return = true;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
58 else if (!strncmp(&input[offset], "FALSE", 5))
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
59 *bool_return = false;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
60
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
61 return EDL_internal_append_offset(input, offset, length);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
62 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
63
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
64 size_t EDL_internal_parse_media_type(const char* input, size_t offset, size_t length, EDL_media_type_t* media_return) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
65 if (offset > length)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
66 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
67
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
68 if (!strncmp(&input[offset], "VIDEO", 5))
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
69 *media_return = MEDIATYPE_VIDEO;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
70 else if (!strncmp(&input[offset], "AUDIO", 5))
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
71 *media_return = MEDIATYPE_AUDIO;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
72 else
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
73 *media_return = MEDIATYPE_UNKNOWN;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
74
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
75 return EDL_internal_append_offset(input, offset, length);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
76 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
77
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
78 size_t EDL_internal_parse_string(const char* input, size_t offset, size_t length, char** string_return) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
79 size_t start, s_length;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
80
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
81 /* will most definitely break on good filesystems */
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
82 if (offset > length)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
83 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
84
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
85 start = strchr(&input[offset], '\"') - &input[offset] + 1;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
86 if (start + offset > length)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
87 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
88
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
89 s_length = strchr(&input[offset + start], '\"') - &input[offset] - start;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
90 if (start + s_length + offset > length)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
91 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
92
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
93 *string_return = malloc((s_length + 1) * sizeof(char));
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
94 if (!*string_return)
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
95 return 0;
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
96
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
97 memcpy(*string_return, &input[offset + start], s_length);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
98 (*string_return)[s_length] = '\0';
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
99
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
100 return EDL_internal_append_offset(input, offset, length);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
101 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
102
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
103 char* EDL_internal_integer_to_string(int value) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
104 char out[256] = {0}; /* this ought to be enough. */
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
105 snprintf(out, 256, "%d", value);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
106 out[255] = '\0';
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
107 return EDL_internal_strdup(out);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
108 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
109
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
110 char* EDL_internal_double_to_string(double value) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
111 char out[256] = {0};
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
112 snprintf(out, 256, "%.6f", value);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
113 out[255] = '\0';
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
114 return EDL_internal_strdup(out);
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
115 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
116
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
117 char* EDL_internal_bool_to_string(bool value) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
118 return EDL_internal_strdup(value ? "TRUE" : "FALSE");
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
119 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
120
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
121 char* EDL_internal_media_type_to_string(EDL_media_type_t value) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
122 switch (value) {
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
123 case MEDIATYPE_AUDIO:
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
124 return EDL_internal_strdup("AUDIO");
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
125 case MEDIATYPE_VIDEO:
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
126 case MEDIATYPE_UNKNOWN:
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
127 default:
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
128 return EDL_internal_strdup("VIDEO");
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
129 }
0c98b46eaf73 *: update API to 2.0, big changes
Paper <paper@paper.us.eu.org>
parents:
diff changeset
130 }