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obs-studio/plugins/win-dshow/encode-dstr.hpp
jp9000 77f0f6802a win-dshow: Put device id mangling in separate file
This is going to be used for other code as well, so may as well put it
in its own file.
2014-12-21 10:14:25 -08:00

77 lines
1.4 KiB
C++

#pragma once
#include <util/util.hpp>
static inline void encode_dstr(struct dstr *str)
{
dstr_replace(str, "#", "#22");
dstr_replace(str, ":", "#3A");
}
static inline void decode_dstr(struct dstr *str)
{
dstr_replace(str, "#3A", ":");
dstr_replace(str, "#22", "#");
}
static inline void EncodeDeviceId(struct dstr *encodedStr,
const wchar_t *name_str, const wchar_t *path_str)
{
DStr name;
DStr path;
dstr_from_wcs(name, name_str);
dstr_from_wcs(path, path_str);
encode_dstr(name);
encode_dstr(path);
dstr_copy_dstr(encodedStr, name);
dstr_cat(encodedStr, ":");
dstr_cat_dstr(encodedStr, path);
}
static inline bool DecodeDeviceDStr(DStr &name, DStr &path,
const char *device_id)
{
const char *path_str;
if (!device_id || !*device_id)
return false;
path_str = strchr(device_id, ':');
if (!path_str)
return false;
dstr_copy(path, path_str+1);
dstr_copy(name, device_id);
size_t len = path_str - device_id;
name->array[len] = 0;
name->len = len;
decode_dstr(name);
decode_dstr(path);
return true;
}
static inline bool DecodeDeviceId(DShow::DeviceId &out, const char *device_id)
{
DStr name, path;
if (!DecodeDeviceDStr(name, path, device_id))
return false;
BPtr<wchar_t> wname = dstr_to_wcs(name);
out.name = wname;
if (!dstr_is_empty(path)) {
BPtr<wchar_t> wpath = dstr_to_wcs(path);
out.path = wpath;
}
return true;
}