gecko/content/media/omx/MediaCodecProxy.cpp

596 lines
14 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "MediaCodecProxy.h"
#include <string.h>
#include <binder/IPCThreadState.h>
#include <stagefright/foundation/ABuffer.h>
#include <stagefright/foundation/ADebug.h>
#include <stagefright/MetaData.h>
#include "stagefright/MediaErrors.h"
#define LOG_TAG "MediaCodecProxy"
#include <android/log.h>
#define ALOG(...) __android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__)
#define TIMEOUT_DEQUEUE_INPUTBUFFER_MS 1000000ll
namespace android {
// General Template: MediaCodec::getOutputGraphicBufferFromIndex(...)
template <typename T, bool InterfaceSupported>
struct OutputGraphicBufferStub
{
static status_t GetOutputGraphicBuffer(T *aMediaCodec,
size_t aIndex,
sp<GraphicBuffer> *aGraphicBuffer)
{
return ERROR_UNSUPPORTED;
}
};
// Class Template Specialization: MediaCodec::getOutputGraphicBufferFromIndex(...)
template <typename T>
struct OutputGraphicBufferStub<T, true>
{
static status_t GetOutputGraphicBuffer(T *aMediaCodec,
size_t aIndex,
sp<GraphicBuffer> *aGraphicBuffer)
{
if (aMediaCodec == nullptr || aGraphicBuffer == nullptr) {
return BAD_VALUE;
}
*aGraphicBuffer = aMediaCodec->getOutputGraphicBufferFromIndex(aIndex);
return OK;
}
};
// Wrapper class to handle interface-difference of MediaCodec.
struct MediaCodecInterfaceWrapper
{
typedef int8_t Supported;
typedef int16_t Unsupported;
template <typename T>
static auto TestOutputGraphicBuffer(T *aMediaCodec) -> decltype(aMediaCodec->getOutputGraphicBufferFromIndex(0), Supported());
template <typename T>
static auto TestOutputGraphicBuffer(...) -> Unsupported;
// SFINAE: Substitution Failure Is Not An Error
static const bool OutputGraphicBufferSupported = sizeof(TestOutputGraphicBuffer<MediaCodec>(nullptr)) == sizeof(Supported);
// Class Template Specialization
static OutputGraphicBufferStub<MediaCodec, OutputGraphicBufferSupported> sOutputGraphicBufferStub;
// Wrapper Function
static status_t GetOutputGraphicBuffer(MediaCodec *aMediaCodec,
size_t aIndex,
sp<GraphicBuffer> *aGraphicBuffer)
{
return sOutputGraphicBufferStub.GetOutputGraphicBuffer(aMediaCodec, aIndex, aGraphicBuffer);
}
};
sp<MediaCodecProxy>
MediaCodecProxy::CreateByType(sp<ALooper> aLooper,
const char *aMime,
bool aEncoder,
bool aAsync,
wp<CodecResourceListener> aListener)
{
sp<MediaCodecProxy> codec = new MediaCodecProxy(aLooper, aMime, aEncoder, aAsync, aListener);
if ((!aAsync && codec->allocated()) || codec->requestResource()) {
return codec;
}
return nullptr;
}
MediaCodecProxy::MediaCodecProxy(sp<ALooper> aLooper,
const char *aMime,
bool aEncoder,
bool aAsync,
wp<CodecResourceListener> aListener)
: mCodecLooper(aLooper)
, mCodecMime(aMime)
, mCodecEncoder(aEncoder)
, mListener(aListener)
{
MOZ_ASSERT(mCodecLooper != nullptr, "ALooper should not be nullptr.");
if (aAsync) {
mResourceHandler = new MediaResourceHandler(this);
} else {
allocateCodec();
}
}
MediaCodecProxy::~MediaCodecProxy()
{
releaseCodec();
// Complete all pending Binder ipc transactions
IPCThreadState::self()->flushCommands();
cancelResource();
}
bool
MediaCodecProxy::requestResource()
{
if (mResourceHandler == nullptr) {
return false;
}
if (strncasecmp(mCodecMime.get(), "video/", 6) == 0) {
mResourceHandler->requestResource(mCodecEncoder
? IMediaResourceManagerService::HW_VIDEO_ENCODER
: IMediaResourceManagerService::HW_VIDEO_DECODER);
} else if (strncasecmp(mCodecMime.get(), "audio/", 6) == 0) {
mResourceHandler->requestResource(mCodecEncoder
? IMediaResourceManagerService::HW_AUDIO_ENCODER
: IMediaResourceManagerService::HW_AUDIO_DECODER);
} else {
return false;
}
return true;
}
void
MediaCodecProxy::cancelResource()
{
if (mResourceHandler == nullptr) {
return;
}
mResourceHandler->cancelResource();
}
bool
MediaCodecProxy::allocateCodec()
{
if (mCodecLooper == nullptr) {
return false;
}
// Write Lock for mCodec
RWLock::AutoWLock awl(mCodecLock);
// Create MediaCodec
mCodec = MediaCodec::CreateByType(mCodecLooper, mCodecMime.get(), mCodecEncoder);
if (mCodec == nullptr) {
return false;
}
return true;
}
void
MediaCodecProxy::releaseCodec()
{
wp<MediaCodec> codec;
{
// Write Lock for mCodec
RWLock::AutoWLock awl(mCodecLock);
codec = mCodec;
// Release MediaCodec
if (mCodec != nullptr) {
mCodec->release();
mCodec = nullptr;
}
}
while (codec.promote() != nullptr) {
// this value come from stagefright's AwesomePlayer.
usleep(1000);
}
}
bool
MediaCodecProxy::allocated() const
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
return mCodec != nullptr;
}
status_t
MediaCodecProxy::configure(const sp<AMessage> &aFormat,
const sp<Surface> &aNativeWindow,
const sp<ICrypto> &aCrypto,
uint32_t aFlags)
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->configure(aFormat, aNativeWindow, aCrypto, aFlags);
}
status_t
MediaCodecProxy::start()
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->start();
}
status_t
MediaCodecProxy::stop()
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->stop();
}
status_t
MediaCodecProxy::release()
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->release();
}
status_t
MediaCodecProxy::flush()
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->flush();
}
status_t
MediaCodecProxy::queueInputBuffer(size_t aIndex,
size_t aOffset,
size_t aSize,
int64_t aPresentationTimeUs,
uint32_t aFlags,
AString *aErrorDetailMessage)
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->queueInputBuffer(aIndex, aOffset, aSize,
aPresentationTimeUs, aFlags, aErrorDetailMessage);
}
status_t
MediaCodecProxy::queueSecureInputBuffer(size_t aIndex,
size_t aOffset,
const CryptoPlugin::SubSample *aSubSamples,
size_t aNumSubSamples,
const uint8_t aKey[16],
const uint8_t aIV[16],
CryptoPlugin::Mode aMode,
int64_t aPresentationTimeUs,
uint32_t aFlags,
AString *aErrorDetailMessage)
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->queueSecureInputBuffer(aIndex, aOffset,
aSubSamples, aNumSubSamples, aKey, aIV, aMode,
aPresentationTimeUs, aFlags, aErrorDetailMessage);
}
status_t
MediaCodecProxy::dequeueInputBuffer(size_t *aIndex,
int64_t aTimeoutUs)
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->dequeueInputBuffer(aIndex, aTimeoutUs);
}
status_t
MediaCodecProxy::dequeueOutputBuffer(size_t *aIndex,
size_t *aOffset,
size_t *aSize,
int64_t *aPresentationTimeUs,
uint32_t *aFlags,
int64_t aTimeoutUs)
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->dequeueOutputBuffer(aIndex, aOffset, aSize,
aPresentationTimeUs, aFlags, aTimeoutUs);
}
status_t
MediaCodecProxy::renderOutputBufferAndRelease(size_t aIndex)
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->renderOutputBufferAndRelease(aIndex);
}
status_t
MediaCodecProxy::releaseOutputBuffer(size_t aIndex)
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->releaseOutputBuffer(aIndex);
}
status_t
MediaCodecProxy::signalEndOfInputStream()
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->signalEndOfInputStream();
}
status_t
MediaCodecProxy::getOutputFormat(sp<AMessage> *aFormat) const
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->getOutputFormat(aFormat);
}
status_t
MediaCodecProxy::getInputBuffers(Vector<sp<ABuffer>> *aBuffers) const
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->getInputBuffers(aBuffers);
}
status_t
MediaCodecProxy::getOutputBuffers(Vector<sp<ABuffer>> *aBuffers) const
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return mCodec->getOutputBuffers(aBuffers);
}
void
MediaCodecProxy::requestActivityNotification(const sp<AMessage> &aNotify)
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return;
}
mCodec->requestActivityNotification(aNotify);
}
status_t
MediaCodecProxy::getOutputGraphicBufferFromIndex(size_t aIndex,
sp<GraphicBuffer> *aGraphicBuffer)
{
// Read Lock for mCodec
RWLock::AutoRLock arl(mCodecLock);
if (mCodec == nullptr) {
return NO_INIT;
}
return MediaCodecInterfaceWrapper::GetOutputGraphicBuffer(mCodec.get(), aIndex, aGraphicBuffer);
}
status_t
MediaCodecProxy::getCapability(uint32_t *aCapability)
{
if (aCapability == nullptr) {
return BAD_VALUE;
}
uint32_t capability = kEmptyCapability;
if (MediaCodecInterfaceWrapper::OutputGraphicBufferSupported) {
capability |= kCanExposeGraphicBuffer;
}
*aCapability = capability;
return OK;
}
// Called on a Binder thread
void
MediaCodecProxy::resourceReserved()
{
// Create MediaCodec
releaseCodec();
if (!allocateCodec()) {
cancelResource();
return;
}
// Notification
sp<CodecResourceListener> listener = mListener.promote();
if (listener != nullptr) {
listener->codecReserved();
}
}
// Called on a Binder thread
void
MediaCodecProxy::resourceCanceled()
{
// Release MediaCodec
releaseCodec();
// Notification
sp<CodecResourceListener> listener = mListener.promote();
if (listener != nullptr) {
listener->codecCanceled();
}
}
bool MediaCodecProxy::Prepare()
{
status_t err;
if (start() != OK) {
ALOG("Couldn't start MediaCodec");
return false;
}
if (getInputBuffers(&mInputBuffers) != OK) {
ALOG("Couldn't get input buffers from MediaCodec");
return false;
}
if (getOutputBuffers(&mOutputBuffers) != OK) {
ALOG("Couldn't get output buffers from MediaCodec");
return false;
}
return true;
}
status_t MediaCodecProxy::Input(const uint8_t* aData, uint32_t aDataSize,
int64_t aTimestampUsecs, uint64_t aflags)
{
if (mCodec == nullptr) {
ALOG("MediaCodec has not been inited from input!");
return NO_INIT;
}
size_t index;
status_t err = dequeueInputBuffer(&index, TIMEOUT_DEQUEUE_INPUTBUFFER_MS);
if (err != OK) {
ALOG("dequeueInputBuffer returned %d", err);
return err;
}
if (aData) {
const sp<ABuffer> &dstBuffer = mInputBuffers.itemAt(index);
CHECK_LE(aDataSize, dstBuffer->capacity());
dstBuffer->setRange(0, aDataSize);
memcpy(dstBuffer->data(), aData, aDataSize);
err = queueInputBuffer(index, 0, dstBuffer->size(), aTimestampUsecs, aflags);
} else {
err = queueInputBuffer(index, 0, 0, 0ll, MediaCodec::BUFFER_FLAG_EOS);
}
if (err != OK) {
ALOG("queueInputBuffer returned %d", err);
return err;
}
return err;
}
status_t MediaCodecProxy::Output(MediaBuffer** aBuffer, int64_t aTimeoutUs)
{
if (mCodec == nullptr) {
ALOG("MediaCodec has not been inited from output!");
return NO_INIT;
}
size_t index = 0;
size_t offset = 0;
size_t size = 0;
int64_t timeUs = 0;
uint32_t flags = 0;
*aBuffer = nullptr;
status_t err = dequeueOutputBuffer(&index, &offset, &size,
&timeUs, &flags, aTimeoutUs);
if (err != OK) {
ALOG("Output returned %d", err);
return err;
}
MediaBuffer *buffer;
buffer = new MediaBuffer(mOutputBuffers.itemAt(index));
sp<MetaData> metaData = buffer->meta_data();
metaData->setInt32(kKeyBufferIndex, index);
metaData->setInt64(kKeyTime, timeUs);
buffer->set_range(buffer->range_offset(), size);
*aBuffer = buffer;
if (flags & MediaCodec::BUFFER_FLAG_EOS) {
return ERROR_END_OF_STREAM;
}
return err;
}
bool MediaCodecProxy::IsWaitingResources()
{
return mCodec == nullptr;
}
bool MediaCodecProxy::IsDormantNeeded()
{
return mCodecLooper.get() ? true : false;
}
void MediaCodecProxy::ReleaseMediaResources()
{
if (mCodec.get()) {
mCodec->stop();
mCodec->release();
mCodec.clear();
}
}
} // namespace android