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205 lines
5.4 KiB
205 lines
5.4 KiB
/*
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* Copyright (C) 2009 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define LOG_NDEBUG 0
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#define LOG_TAG "DataSource"
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#include "include/CallbackDataSource.h"
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#include "include/HTTPBase.h"
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#include "include/NuCachedSource2.h"
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#include <media/IDataSource.h>
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#include <media/IMediaHTTPConnection.h>
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#include <media/IMediaHTTPService.h>
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#include <media/stagefright/foundation/ADebug.h>
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#include <media/stagefright/foundation/AMessage.h>
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#include <media/stagefright/DataSource.h>
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#include <media/stagefright/DataURISource.h>
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#include <media/stagefright/FileSource.h>
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#include <media/stagefright/MediaErrors.h>
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#include <media/stagefright/MediaHTTP.h>
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#include <media/stagefright/RemoteDataSource.h>
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#include <media/stagefright/Utils.h>
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#include <utils/String8.h>
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#include <cutils/properties.h>
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#include <private/android_filesystem_config.h>
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namespace android {
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bool DataSource::getUInt16(off64_t offset, uint16_t *x) {
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*x = 0;
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uint8_t byte[2];
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if (readAt(offset, byte, 2) != 2) {
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return false;
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}
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*x = (byte[0] << 8) | byte[1];
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return true;
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}
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bool DataSource::getUInt24(off64_t offset, uint32_t *x) {
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*x = 0;
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uint8_t byte[3];
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if (readAt(offset, byte, 3) != 3) {
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return false;
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}
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*x = (byte[0] << 16) | (byte[1] << 8) | byte[2];
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return true;
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}
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bool DataSource::getUInt32(off64_t offset, uint32_t *x) {
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*x = 0;
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uint32_t tmp;
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if (readAt(offset, &tmp, 4) != 4) {
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return false;
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}
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*x = ntohl(tmp);
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return true;
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}
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bool DataSource::getUInt64(off64_t offset, uint64_t *x) {
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*x = 0;
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uint64_t tmp;
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if (readAt(offset, &tmp, 8) != 8) {
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return false;
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}
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*x = ntoh64(tmp);
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return true;
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}
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status_t DataSource::getSize(off64_t *size) {
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*size = 0;
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return ERROR_UNSUPPORTED;
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}
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sp<IDataSource> DataSource::getIDataSource() const {
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return nullptr;
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}
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////////////////////////////////////////////////////////////////////////////////
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// static
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sp<DataSource> DataSource::CreateFromURI(
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const sp<IMediaHTTPService> &httpService,
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const char *uri,
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const KeyedVector<String8, String8> *headers,
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String8 *contentType,
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HTTPBase *httpSource) {
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if (contentType != NULL) {
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*contentType = "";
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}
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sp<DataSource> source;
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if (!strncasecmp("file://", uri, 7)) {
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source = new FileSource(uri + 7);
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} else if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
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if (httpService == NULL) {
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ALOGE("Invalid http service!");
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return NULL;
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}
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if (httpSource == NULL) {
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sp<IMediaHTTPConnection> conn = httpService->makeHTTPConnection();
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if (conn == NULL) {
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ALOGE("Failed to make http connection from http service!");
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return NULL;
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}
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httpSource = new MediaHTTP(conn);
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}
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String8 cacheConfig;
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bool disconnectAtHighwatermark = false;
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KeyedVector<String8, String8> nonCacheSpecificHeaders;
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if (headers != NULL) {
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nonCacheSpecificHeaders = *headers;
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NuCachedSource2::RemoveCacheSpecificHeaders(
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&nonCacheSpecificHeaders,
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&cacheConfig,
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&disconnectAtHighwatermark);
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}
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if (httpSource->connect(uri, &nonCacheSpecificHeaders) != OK) {
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ALOGE("Failed to connect http source!");
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return NULL;
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}
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if (contentType != NULL) {
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*contentType = httpSource->getMIMEType();
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}
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source = NuCachedSource2::Create(
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httpSource,
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cacheConfig.isEmpty() ? NULL : cacheConfig.string(),
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disconnectAtHighwatermark);
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} else if (!strncasecmp("data:", uri, 5)) {
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source = DataURISource::Create(uri);
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} else {
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// Assume it's a filename.
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source = new FileSource(uri);
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}
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if (source == NULL || source->initCheck() != OK) {
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return NULL;
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}
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return source;
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}
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sp<DataSource> DataSource::CreateFromFd(int fd, int64_t offset, int64_t length) {
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sp<FileSource> source = new FileSource(fd, offset, length);
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return source->initCheck() != OK ? nullptr : source;
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}
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sp<DataSource> DataSource::CreateMediaHTTP(const sp<IMediaHTTPService> &httpService) {
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if (httpService == NULL) {
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return NULL;
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}
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sp<IMediaHTTPConnection> conn = httpService->makeHTTPConnection();
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if (conn == NULL) {
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return NULL;
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} else {
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return new MediaHTTP(conn);
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}
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}
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sp<DataSource> DataSource::CreateFromIDataSource(const sp<IDataSource> &source) {
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return new TinyCacheSource(new CallbackDataSource(source));
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}
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String8 DataSource::getMIMEType() const {
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return String8("application/octet-stream");
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}
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sp<IDataSource> DataSource::asIDataSource() {
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return RemoteDataSource::wrap(sp<DataSource>(this));
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}
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} // namespace android
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