| /* |
| * Copyright (C) 2009 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. |
| */ |
| |
| //#define LOG_NDEBUG 0 |
| #define LOG_TAG "MetaData" |
| #include <utils/Log.h> |
| |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <media/stagefright/foundation/ADebug.h> |
| #include <media/stagefright/foundation/AString.h> |
| #include <media/stagefright/foundation/hexdump.h> |
| #include <media/stagefright/MetaData.h> |
| |
| namespace android { |
| |
| MetaData::MetaData() { |
| } |
| |
| MetaData::MetaData(const MetaData &from) |
| : RefBase(), |
| mItems(from.mItems) { |
| } |
| |
| MetaData::~MetaData() { |
| clear(); |
| } |
| |
| void MetaData::clear() { |
| mItems.clear(); |
| } |
| |
| bool MetaData::remove(uint32_t key) { |
| ssize_t i = mItems.indexOfKey(key); |
| |
| if (i < 0) { |
| return false; |
| } |
| |
| mItems.removeItemsAt(i); |
| |
| return true; |
| } |
| |
| bool MetaData::setCString(uint32_t key, const char *value) { |
| return setData(key, TYPE_C_STRING, value, strlen(value) + 1); |
| } |
| |
| bool MetaData::setInt32(uint32_t key, int32_t value) { |
| return setData(key, TYPE_INT32, &value, sizeof(value)); |
| } |
| |
| bool MetaData::setInt64(uint32_t key, int64_t value) { |
| return setData(key, TYPE_INT64, &value, sizeof(value)); |
| } |
| |
| bool MetaData::setFloat(uint32_t key, float value) { |
| return setData(key, TYPE_FLOAT, &value, sizeof(value)); |
| } |
| |
| bool MetaData::setPointer(uint32_t key, void *value) { |
| return setData(key, TYPE_POINTER, &value, sizeof(value)); |
| } |
| |
| bool MetaData::setRect( |
| uint32_t key, |
| int32_t left, int32_t top, |
| int32_t right, int32_t bottom) { |
| Rect r; |
| r.mLeft = left; |
| r.mTop = top; |
| r.mRight = right; |
| r.mBottom = bottom; |
| |
| return setData(key, TYPE_RECT, &r, sizeof(r)); |
| } |
| |
| bool MetaData::findCString(uint32_t key, const char **value) { |
| uint32_t type; |
| const void *data; |
| size_t size; |
| if (!findData(key, &type, &data, &size) || type != TYPE_C_STRING) { |
| return false; |
| } |
| |
| *value = (const char *)data; |
| |
| return true; |
| } |
| |
| bool MetaData::findInt32(uint32_t key, int32_t *value) { |
| uint32_t type; |
| const void *data; |
| size_t size; |
| if (!findData(key, &type, &data, &size) || type != TYPE_INT32) { |
| return false; |
| } |
| |
| CHECK_EQ(size, sizeof(*value)); |
| |
| *value = *(int32_t *)data; |
| |
| return true; |
| } |
| |
| bool MetaData::findInt64(uint32_t key, int64_t *value) { |
| uint32_t type; |
| const void *data; |
| size_t size; |
| if (!findData(key, &type, &data, &size) || type != TYPE_INT64) { |
| return false; |
| } |
| |
| CHECK_EQ(size, sizeof(*value)); |
| |
| *value = *(int64_t *)data; |
| |
| return true; |
| } |
| |
| bool MetaData::findFloat(uint32_t key, float *value) { |
| uint32_t type; |
| const void *data; |
| size_t size; |
| if (!findData(key, &type, &data, &size) || type != TYPE_FLOAT) { |
| return false; |
| } |
| |
| CHECK_EQ(size, sizeof(*value)); |
| |
| *value = *(float *)data; |
| |
| return true; |
| } |
| |
| bool MetaData::findPointer(uint32_t key, void **value) { |
| uint32_t type; |
| const void *data; |
| size_t size; |
| if (!findData(key, &type, &data, &size) || type != TYPE_POINTER) { |
| return false; |
| } |
| |
| CHECK_EQ(size, sizeof(*value)); |
| |
| *value = *(void **)data; |
| |
| return true; |
| } |
| |
| bool MetaData::findRect( |
| uint32_t key, |
| int32_t *left, int32_t *top, |
| int32_t *right, int32_t *bottom) { |
| uint32_t type; |
| const void *data; |
| size_t size; |
| if (!findData(key, &type, &data, &size) || type != TYPE_RECT) { |
| return false; |
| } |
| |
| CHECK_EQ(size, sizeof(Rect)); |
| |
| const Rect *r = (const Rect *)data; |
| *left = r->mLeft; |
| *top = r->mTop; |
| *right = r->mRight; |
| *bottom = r->mBottom; |
| |
| return true; |
| } |
| |
| bool MetaData::setData( |
| uint32_t key, uint32_t type, const void *data, size_t size) { |
| bool overwrote_existing = true; |
| |
| ssize_t i = mItems.indexOfKey(key); |
| if (i < 0) { |
| typed_data item; |
| i = mItems.add(key, item); |
| |
| overwrote_existing = false; |
| } |
| |
| typed_data &item = mItems.editValueAt(i); |
| |
| item.setData(type, data, size); |
| |
| return overwrote_existing; |
| } |
| |
| bool MetaData::findData(uint32_t key, uint32_t *type, |
| const void **data, size_t *size) const { |
| ssize_t i = mItems.indexOfKey(key); |
| |
| if (i < 0) { |
| return false; |
| } |
| |
| const typed_data &item = mItems.valueAt(i); |
| |
| item.getData(type, data, size); |
| |
| return true; |
| } |
| |
| MetaData::typed_data::typed_data() |
| : mType(0), |
| mSize(0) { |
| } |
| |
| MetaData::typed_data::~typed_data() { |
| clear(); |
| } |
| |
| MetaData::typed_data::typed_data(const typed_data &from) |
| : mType(from.mType), |
| mSize(0) { |
| allocateStorage(from.mSize); |
| memcpy(storage(), from.storage(), mSize); |
| } |
| |
| MetaData::typed_data &MetaData::typed_data::operator=( |
| const MetaData::typed_data &from) { |
| if (this != &from) { |
| clear(); |
| mType = from.mType; |
| allocateStorage(from.mSize); |
| memcpy(storage(), from.storage(), mSize); |
| } |
| |
| return *this; |
| } |
| |
| void MetaData::typed_data::clear() { |
| freeStorage(); |
| |
| mType = 0; |
| } |
| |
| void MetaData::typed_data::setData( |
| uint32_t type, const void *data, size_t size) { |
| clear(); |
| |
| mType = type; |
| allocateStorage(size); |
| memcpy(storage(), data, size); |
| } |
| |
| void MetaData::typed_data::getData( |
| uint32_t *type, const void **data, size_t *size) const { |
| *type = mType; |
| *size = mSize; |
| *data = storage(); |
| } |
| |
| void MetaData::typed_data::allocateStorage(size_t size) { |
| mSize = size; |
| |
| if (usesReservoir()) { |
| return; |
| } |
| |
| u.ext_data = malloc(mSize); |
| } |
| |
| void MetaData::typed_data::freeStorage() { |
| if (!usesReservoir()) { |
| if (u.ext_data) { |
| free(u.ext_data); |
| } |
| } |
| |
| mSize = 0; |
| } |
| |
| String8 MetaData::typed_data::asString() const { |
| String8 out; |
| const void *data = storage(); |
| switch(mType) { |
| case TYPE_NONE: |
| out = String8::format("no type, size %d)", mSize); |
| break; |
| case TYPE_C_STRING: |
| out = String8::format("(char*) %s", (const char *)data); |
| break; |
| case TYPE_INT32: |
| out = String8::format("(int32_t) %d", *(int32_t *)data); |
| break; |
| case TYPE_INT64: |
| out = String8::format("(int64_t) %lld", *(int64_t *)data); |
| break; |
| case TYPE_FLOAT: |
| out = String8::format("(float) %f", *(float *)data); |
| break; |
| case TYPE_POINTER: |
| out = String8::format("(void*) %p", *(void **)data); |
| break; |
| case TYPE_RECT: |
| { |
| const Rect *r = (const Rect *)data; |
| out = String8::format("Rect(%d, %d, %d, %d)", |
| r->mLeft, r->mTop, r->mRight, r->mBottom); |
| break; |
| } |
| |
| default: |
| out = String8::format("(unknown type %d, size %d)", mType, mSize); |
| if (mSize <= 48) { // if it's less than three lines of hex data, dump it |
| AString foo; |
| hexdump(data, mSize, 0, &foo); |
| out.append("\n"); |
| out.append(foo.c_str()); |
| } |
| break; |
| } |
| return out; |
| } |
| |
| static void MakeFourCCString(uint32_t x, char *s) { |
| s[0] = x >> 24; |
| s[1] = (x >> 16) & 0xff; |
| s[2] = (x >> 8) & 0xff; |
| s[3] = x & 0xff; |
| s[4] = '\0'; |
| } |
| |
| void MetaData::dumpToLog() const { |
| for (int i = mItems.size(); --i >= 0;) { |
| int32_t key = mItems.keyAt(i); |
| char cc[5]; |
| MakeFourCCString(key, cc); |
| const typed_data &item = mItems.valueAt(i); |
| ALOGI("%s: %s", cc, item.asString().string()); |
| } |
| } |
| |
| } // namespace android |
| |