mirror of
https://github.com/danog/libtgvoip.git
synced 2024-12-11 16:49:52 +01:00
5caaaafa42
I'm now using the entire audio processing module from WebRTC as opposed to individual DSP algorithms pulled from there before. Seems to work better this way.
120 lines
3.6 KiB
C++
Executable File
120 lines
3.6 KiB
C++
Executable File
/*
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* Copyright 2004 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef RTC_BASE_STRINGUTILS_H_
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#define RTC_BASE_STRINGUTILS_H_
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#include <ctype.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#if defined(WEBRTC_WIN)
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#include <malloc.h>
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#include <wchar.h>
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#include <windows.h>
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#define alloca _alloca
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#endif // WEBRTC_WIN
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#if defined(WEBRTC_POSIX)
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#ifdef BSD
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#include <stdlib.h>
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#else // BSD
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#include <alloca.h>
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#endif // !BSD
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#include <strings.h>
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#endif // WEBRTC_POSIX
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#include <string>
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///////////////////////////////////////////////////////////////////////////////
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// Generic string/memory utilities
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///////////////////////////////////////////////////////////////////////////////
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#define STACK_ARRAY(TYPE, LEN) \
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static_cast<TYPE*>(::alloca((LEN) * sizeof(TYPE)))
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///////////////////////////////////////////////////////////////////////////////
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// Traits simplifies porting string functions to be CTYPE-agnostic
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///////////////////////////////////////////////////////////////////////////////
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namespace rtc {
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const size_t SIZE_UNKNOWN = static_cast<size_t>(-1);
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// Safe version of strncpy that always nul-terminate.
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size_t strcpyn(char* buffer,
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size_t buflen,
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const char* source,
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size_t srclen = SIZE_UNKNOWN);
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///////////////////////////////////////////////////////////////////////////////
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// UTF helpers (Windows only)
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///////////////////////////////////////////////////////////////////////////////
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#if defined(WEBRTC_WIN)
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inline std::wstring ToUtf16(const char* utf8, size_t len) {
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int len16 = ::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len),
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nullptr, 0);
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wchar_t* ws = STACK_ARRAY(wchar_t, len16);
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::MultiByteToWideChar(CP_UTF8, 0, utf8, static_cast<int>(len), ws, len16);
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return std::wstring(ws, len16);
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}
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inline std::wstring ToUtf16(const std::string& str) {
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return ToUtf16(str.data(), str.length());
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}
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inline std::string ToUtf8(const wchar_t* wide, size_t len) {
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int len8 = ::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len),
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nullptr, 0, nullptr, nullptr);
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char* ns = STACK_ARRAY(char, len8);
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::WideCharToMultiByte(CP_UTF8, 0, wide, static_cast<int>(len), ns, len8,
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nullptr, nullptr);
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return std::string(ns, len8);
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}
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inline std::string ToUtf8(const wchar_t* wide) {
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return ToUtf8(wide, wcslen(wide));
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}
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inline std::string ToUtf8(const std::wstring& wstr) {
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return ToUtf8(wstr.data(), wstr.length());
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}
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#endif // WEBRTC_WIN
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// Replaces all occurrences of "search" with "replace".
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void replace_substrs(const char* search,
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size_t search_len,
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const char* replace,
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size_t replace_len,
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std::string* s);
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// True iff s1 starts with s2.
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bool starts_with(const char* s1, const char* s2);
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// True iff s1 ends with s2.
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bool ends_with(const char* s1, const char* s2);
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// Remove leading and trailing whitespaces.
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std::string string_trim(const std::string& s);
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// TODO(jonasolsson): replace with absl::Hex when that becomes available.
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std::string ToHex(const int i);
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std::string LeftPad(char padding, unsigned length, std::string s);
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} // namespace rtc
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#endif // RTC_BASE_STRINGUTILS_H_
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