blob: c22053e452c73f666d955a283b6b7e952cc36964 [file] [log] [blame]
/*
* 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 "DataSource"
#include "include/CallbackDataSource.h"
#include "include/HTTPBase.h"
#include "include/NuCachedSource2.h"
#include <media/IDataSource.h>
#include <media/IMediaHTTPConnection.h>
#include <media/IMediaHTTPService.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/AMessage.h>
#include <media/stagefright/DataSource.h>
#include <media/stagefright/DataURISource.h>
#include <media/stagefright/FileSource.h>
#include <media/stagefright/MediaErrors.h>
#include <media/stagefright/MediaHTTP.h>
#include <media/stagefright/RemoteDataSource.h>
#include <media/stagefright/Utils.h>
#include <utils/String8.h>
#include <cutils/properties.h>
#include <private/android_filesystem_config.h>
namespace android {
bool DataSource::getUInt16(off64_t offset, uint16_t *x) {
*x = 0;
uint8_t byte[2];
if (readAt(offset, byte, 2) != 2) {
return false;
}
*x = (byte[0] << 8) | byte[1];
return true;
}
bool DataSource::getUInt24(off64_t offset, uint32_t *x) {
*x = 0;
uint8_t byte[3];
if (readAt(offset, byte, 3) != 3) {
return false;
}
*x = (byte[0] << 16) | (byte[1] << 8) | byte[2];
return true;
}
bool DataSource::getUInt32(off64_t offset, uint32_t *x) {
*x = 0;
uint32_t tmp;
if (readAt(offset, &tmp, 4) != 4) {
return false;
}
*x = ntohl(tmp);
return true;
}
bool DataSource::getUInt64(off64_t offset, uint64_t *x) {
*x = 0;
uint64_t tmp;
if (readAt(offset, &tmp, 8) != 8) {
return false;
}
*x = ntoh64(tmp);
return true;
}
bool DataSource::getUInt16Var(off64_t offset, uint16_t *x, size_t size) {
if (size == 2) {
return getUInt16(offset, x);
}
if (size == 1) {
uint8_t tmp;
if (readAt(offset, &tmp, 1) == 1) {
*x = tmp;
return true;
}
}
return false;
}
bool DataSource::getUInt32Var(off64_t offset, uint32_t *x, size_t size) {
if (size == 4) {
return getUInt32(offset, x);
}
if (size == 2) {
uint16_t tmp;
if (getUInt16(offset, &tmp)) {
*x = tmp;
return true;
}
}
return false;
}
bool DataSource::getUInt64Var(off64_t offset, uint64_t *x, size_t size) {
if (size == 8) {
return getUInt64(offset, x);
}
if (size == 4) {
uint32_t tmp;
if (getUInt32(offset, &tmp)) {
*x = tmp;
return true;
}
}
return false;
}
status_t DataSource::getSize(off64_t *size) {
*size = 0;
return ERROR_UNSUPPORTED;
}
sp<IDataSource> DataSource::getIDataSource() const {
return nullptr;
}
////////////////////////////////////////////////////////////////////////////////
// static
sp<DataSource> DataSource::CreateFromURI(
const sp<IMediaHTTPService> &httpService,
const char *uri,
const KeyedVector<String8, String8> *headers,
String8 *contentType,
HTTPBase *httpSource) {
if (contentType != NULL) {
*contentType = "";
}
sp<DataSource> source;
if (!strncasecmp("file://", uri, 7)) {
source = new FileSource(uri + 7);
} else if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
if (httpService == NULL) {
ALOGE("Invalid http service!");
return NULL;
}
if (httpSource == NULL) {
sp<IMediaHTTPConnection> conn = httpService->makeHTTPConnection();
if (conn == NULL) {
ALOGE("Failed to make http connection from http service!");
return NULL;
}
httpSource = new MediaHTTP(conn);
}
String8 cacheConfig;
bool disconnectAtHighwatermark = false;
KeyedVector<String8, String8> nonCacheSpecificHeaders;
if (headers != NULL) {
nonCacheSpecificHeaders = *headers;
NuCachedSource2::RemoveCacheSpecificHeaders(
&nonCacheSpecificHeaders,
&cacheConfig,
&disconnectAtHighwatermark);
}
if (httpSource->connect(uri, &nonCacheSpecificHeaders) != OK) {
ALOGE("Failed to connect http source!");
return NULL;
}
if (contentType != NULL) {
*contentType = httpSource->getMIMEType();
}
source = NuCachedSource2::Create(
httpSource,
cacheConfig.isEmpty() ? NULL : cacheConfig.string(),
disconnectAtHighwatermark);
} else if (!strncasecmp("data:", uri, 5)) {
source = DataURISource::Create(uri);
} else {
// Assume it's a filename.
source = new FileSource(uri);
}
if (source == NULL || source->initCheck() != OK) {
return NULL;
}
return source;
}
sp<DataSource> DataSource::CreateFromFd(int fd, int64_t offset, int64_t length) {
sp<FileSource> source = new FileSource(fd, offset, length);
return source->initCheck() != OK ? nullptr : source;
}
sp<DataSource> DataSource::CreateMediaHTTP(const sp<IMediaHTTPService> &httpService) {
if (httpService == NULL) {
return NULL;
}
sp<IMediaHTTPConnection> conn = httpService->makeHTTPConnection();
if (conn == NULL) {
return NULL;
} else {
return new MediaHTTP(conn);
}
}
sp<DataSource> DataSource::CreateFromIDataSource(const sp<IDataSource> &source) {
return new TinyCacheSource(new CallbackDataSource(source));
}
String8 DataSource::getMIMEType() const {
return String8("application/octet-stream");
}
sp<IDataSource> DataSource::asIDataSource() {
return RemoteDataSource::wrap(sp<DataSource>(this));
}
} // namespace android