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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/audio/point.h"
#include "base/logging.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
namespace media {
std::string PointsToString(const std::vector<Point>& points) {
std::string points_string;
if (!points.empty()) {
for (size_t i = 0; i < points.size() - 1; ++i) {
points_string.append(points[i].ToString());
points_string.append(", ");
}
points_string.append(points.back().ToString());
}
return points_string;
}
std::vector<Point> ParsePointsFromString(const std::string& points_string) {
std::vector<Point> points;
if (points_string.empty())
return points;
const auto& tokens =
base::SplitString(points_string, base::kWhitespaceASCII,
base::KEEP_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
if (tokens.size() < 3 || tokens.size() % 3 != 0) {
LOG(ERROR) << "Malformed points string: " << points_string;
return points;
}
std::vector<float> float_tokens;
float_tokens.reserve(tokens.size());
for (const auto& token : tokens) {
double float_token;
if (!base::StringToDouble(token, &float_token)) {
LOG(ERROR) << "Unable to convert token=" << token
<< " to double from points string: " << points_string;
return points;
}
float_tokens.push_back(float_token);
}
points.reserve(float_tokens.size() / 3);
for (size_t i = 0; i < float_tokens.size(); i += 3) {
points.push_back(
Point(float_tokens[i + 0], float_tokens[i + 1], float_tokens[i + 2]));
}
return points;
}
} // namespace media
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