| /* |
| * Copyright 2012, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "Parameters.h" |
| |
| #include <media/stagefright/MediaErrors.h> |
| |
| namespace android { |
| |
| // static |
| sp<Parameters> Parameters::Parse(const char *data, size_t size) { |
| sp<Parameters> params = new Parameters; |
| status_t err = params->parse(data, size); |
| |
| if (err != OK) { |
| return NULL; |
| } |
| |
| return params; |
| } |
| |
| Parameters::Parameters() {} |
| |
| Parameters::~Parameters() {} |
| |
| status_t Parameters::parse(const char *data, size_t size) { |
| size_t i = 0; |
| while (i < size) { |
| size_t nameStart = i; |
| while (i < size && data[i] != ':') { |
| ++i; |
| } |
| |
| if (i == size || i == nameStart) { |
| return ERROR_MALFORMED; |
| } |
| |
| AString name(&data[nameStart], i - nameStart); |
| name.trim(); |
| name.tolower(); |
| |
| ++i; |
| |
| size_t valueStart = i; |
| |
| while (i + 1 < size && (data[i] != '\r' || data[i + 1] != '\n')) { |
| ++i; |
| } |
| |
| AString value(&data[valueStart], i - valueStart); |
| value.trim(); |
| |
| mDict.add(name, value); |
| |
| while (i + 1 < size && data[i] == '\r' && data[i + 1] == '\n') { |
| i += 2; |
| } |
| } |
| |
| return OK; |
| } |
| |
| bool Parameters::findParameter(const char *name, AString *value) const { |
| AString key = name; |
| key.tolower(); |
| |
| ssize_t index = mDict.indexOfKey(key); |
| |
| if (index < 0) { |
| value->clear(); |
| |
| return false; |
| } |
| |
| *value = mDict.valueAt(index); |
| return true; |
| } |
| |
| } // namespace android |