commit
fd4fb71b83
@ -0,0 +1,115 @@
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/*
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* Copyright (C) 2018 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 "NdkMediaDataSource"
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#include "NdkMediaDataSourcePriv.h"
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#include <inttypes.h>
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#include <jni.h>
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#include <unistd.h>
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#include <binder/IServiceManager.h>
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#include <cutils/properties.h>
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#include <utils/Log.h>
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#include <utils/StrongPointer.h>
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#include <media/NdkMediaError.h>
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#include <media/NdkMediaDataSource.h>
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#include <media/stagefright/InterfaceUtils.h>
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#include "../../libstagefright/include/HTTPBase.h"
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#include "../../libstagefright/include/NuCachedSource2.h"
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using namespace android;
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struct AMediaDataSource {
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void *userdata;
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AMediaDataSourceReadAt readAt;
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AMediaDataSourceGetSize getSize;
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};
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NdkDataSource::NdkDataSource(AMediaDataSource *dataSource)
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: mDataSource(dataSource) {
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}
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status_t NdkDataSource::initCheck() const {
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return OK;
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}
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ssize_t NdkDataSource::readAt(off64_t offset, void *data, size_t size) {
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Mutex::Autolock l(mLock);
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if (mDataSource->getSize == NULL || mDataSource->userdata == NULL) {
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return -1;
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}
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return mDataSource->readAt(mDataSource->userdata, offset, data, size);
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}
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status_t NdkDataSource::getSize(off64_t *size) {
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Mutex::Autolock l(mLock);
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if (mDataSource->getSize == NULL || mDataSource->userdata == NULL) {
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return NO_INIT;
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}
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if (size != NULL) {
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*size = mDataSource->getSize(mDataSource->userdata);
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}
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return OK;
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}
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String8 NdkDataSource::toString() {
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return String8::format("NdkDataSource(pid %d, uid %d)", getpid(), getuid());
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}
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String8 NdkDataSource::getMIMEType() const {
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return String8("application/octet-stream");
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}
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extern "C" {
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EXPORT
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AMediaDataSource* AMediaDataSource_new() {
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AMediaDataSource *mSource = new AMediaDataSource();
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mSource->userdata = NULL;
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mSource->readAt = NULL;
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mSource->getSize = NULL;
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return mSource;
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}
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EXPORT
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void AMediaDataSource_delete(AMediaDataSource *mSource) {
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ALOGV("dtor");
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if (mSource != NULL) {
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delete mSource;
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}
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}
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EXPORT
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void AMediaDataSource_setUserdata(AMediaDataSource *mSource, void *userdata) {
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mSource->userdata = userdata;
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}
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EXPORT
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void AMediaDataSource_setReadAt(AMediaDataSource *mSource, AMediaDataSourceReadAt readAt) {
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mSource->readAt = readAt;
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}
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EXPORT
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void AMediaDataSource_setGetSize(AMediaDataSource *mSource, AMediaDataSourceGetSize getSize) {
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mSource->getSize = getSize;
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}
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} // extern "C"
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@ -0,0 +1,59 @@
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/*
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* Copyright (C) 2018 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.
|
||||
* You may obtain a copy of the License at
|
||||
*
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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,
|
||||
* 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.
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*/
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/*
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* This file defines an NDK API.
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* Do not remove methods.
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* Do not change method signatures.
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* Do not change the value of constants.
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* Do not change the size of any of the classes defined in here.
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* Do not reference types that are not part of the NDK.
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* Do not #include files that aren't part of the NDK.
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*/
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#ifndef _NDK_MEDIA_DATASOURCE_PRIV_H
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#define _NDK_MEDIA_DATASOURCE_PRIV_H
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <media/DataSource.h>
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#include <media/NdkMediaDataSource.h>
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#include <utils/Mutex.h>
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#include <utils/String8.h>
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using namespace android;
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struct NdkDataSource : public DataSource {
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NdkDataSource(AMediaDataSource *);
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virtual status_t initCheck() const;
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virtual ssize_t readAt(off64_t offset, void *data, size_t size);
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virtual status_t getSize(off64_t *);
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virtual String8 toString();
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virtual String8 getMIMEType() const;
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private:
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Mutex mLock;
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AMediaDataSource *mDataSource;
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};
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#endif // _NDK_MEDIA_DATASOURCE_PRIV_H
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|
@ -0,0 +1,124 @@
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/*
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* Copyright (C) 2018 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.
|
||||
* 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.
|
||||
*/
|
||||
|
||||
|
||||
/*
|
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* This file defines an NDK API.
|
||||
* Do not remove methods.
|
||||
* Do not change method signatures.
|
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* Do not change the value of constants.
|
||||
* Do not change the size of any of the classes defined in here.
|
||||
* Do not reference types that are not part of the NDK.
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* Do not #include files that aren't part of the NDK.
|
||||
*/
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#ifndef _NDK_MEDIA_DATASOURCE_H
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#define _NDK_MEDIA_DATASOURCE_H
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <media/NdkMediaError.h>
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__BEGIN_DECLS
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struct AMediaDataSource;
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typedef struct AMediaDataSource AMediaDataSource;
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#if __ANDROID_API__ >= 28
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/*
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* AMediaDataSource's callbacks will be invoked on an implementation-defined thread
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* or thread pool. No guarantees are provided about which thread(s) will be used for
|
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* callbacks. However, it is guaranteed that AMediaDataSource's callbacks will only
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* ever be invoked by a single thread at a time.
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*
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* There will be a thread synchronization point between each call to ensure that
|
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* modifications to the state of your AMediaDataSource are visible to future
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* calls. This means you don't need to do your own synchronization unless you're
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* modifying the AMediaDataSource from another thread while it's being used by the
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* framework.
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*/
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|
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/**
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* Called to request data from the given |offset|.
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*
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* Implementations should should write up to |size| bytes into
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||||
* |buffer|, and return the number of bytes written.
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*
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* Return 0 if size is zero (thus no bytes are read).
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||||
*
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* Return -1 to indicate that end of stream is reached.
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*/
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typedef ssize_t (*AMediaDataSourceReadAt)(
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void *userdata, off64_t offset, void * buffer, size_t size);
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|
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/**
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* Called to get the size of the data source.
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*
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* Return the size of data source in bytes, or -1 if the size is unknown.
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||||
*/
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||||
typedef ssize_t (*AMediaDataSourceGetSize)(void *userdata);
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||||
|
||||
/**
|
||||
* Create new media data source. Returns NULL if memory allocation
|
||||
* for the new data source object fails.
|
||||
*/
|
||||
AMediaDataSource* AMediaDataSource_new();
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||||
|
||||
/**
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||||
* Delete a previously created media data source.
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||||
*/
|
||||
void AMediaDataSource_delete(AMediaDataSource*);
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||||
|
||||
/**
|
||||
* Set an user provided opaque handle. This opaque handle is passed as
|
||||
* the first argument to the data source callbacks.
|
||||
*/
|
||||
void AMediaDataSource_setUserdata(
|
||||
AMediaDataSource*, void *userdata);
|
||||
|
||||
/**
|
||||
* Set a custom callback for supplying random access media data to the
|
||||
* NDK media framework.
|
||||
*
|
||||
* Implement this if your app has special requirements for the way media
|
||||
* data is obtained, or if you need a callback when data is read by the
|
||||
* NDK media framework.
|
||||
*
|
||||
* Please refer to the definition of AMediaDataSourceReadAt for
|
||||
* additional details.
|
||||
*/
|
||||
void AMediaDataSource_setReadAt(
|
||||
AMediaDataSource*,
|
||||
AMediaDataSourceReadAt);
|
||||
|
||||
/**
|
||||
* Set a custom callback for supplying the size of the data source to the
|
||||
* NDK media framework.
|
||||
*
|
||||
* Please refer to the definition of AMediaDataSourceGetSize for
|
||||
* additional details.
|
||||
*/
|
||||
void AMediaDataSource_setGetSize(
|
||||
AMediaDataSource*,
|
||||
AMediaDataSourceGetSize);
|
||||
|
||||
#endif /*__ANDROID_API__ >= 28 */
|
||||
|
||||
__END_DECLS
|
||||
|
||||
#endif // _NDK_MEDIA_DATASOURCE_H
|
Loading…
Reference in new issue