658 lines
19 KiB
C++
658 lines
19 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AndroidDecoderModule.h"
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#include "AndroidBridge.h"
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#include "GLBlitHelper.h"
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#include "GLContext.h"
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#include "GLContextEGL.h"
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#include "GLContextProvider.h"
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#include "GLImages.h"
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#include "GLLibraryEGL.h"
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#include "MediaData.h"
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#include "MediaInfo.h"
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#include "nsThreadUtils.h"
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#include "nsAutoPtr.h"
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#include "nsPromiseFlatString.h"
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#include <jni.h>
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#include <string.h>
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using namespace mozilla;
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using namespace mozilla::gl;
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using namespace mozilla::widget::sdk;
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namespace mozilla {
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#define ENVOKE_CALLBACK(Func, ...) \
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if (mCallback) { \
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mCallback->Func(__VA_ARGS__); \
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} else { \
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NS_WARNING("callback not set"); \
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}
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static MediaCodec::LocalRef CreateDecoder(const nsACString& aMimeType)
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{
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MediaCodec::LocalRef codec;
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NS_ENSURE_SUCCESS(MediaCodec::CreateDecoderByType(PromiseFlatCString(aMimeType).get(), &codec), nullptr);
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return codec;
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}
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class VideoDataDecoder : public MediaCodecDataDecoder {
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public:
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VideoDataDecoder(const VideoInfo& aConfig,
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MediaFormat::Param aFormat, MediaDataDecoderCallback* aCallback,
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layers::ImageContainer* aImageContainer)
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: MediaCodecDataDecoder(MediaData::Type::VIDEO_DATA, aConfig.mMimeType, aFormat, aCallback)
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, mImageContainer(aImageContainer)
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, mConfig(aConfig)
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{
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}
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nsresult Init() override {
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mSurfaceTexture = AndroidSurfaceTexture::Create();
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if (!mSurfaceTexture) {
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NS_WARNING("Failed to create SurfaceTexture for video decode\n");
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return NS_ERROR_FAILURE;
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}
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return InitDecoder(mSurfaceTexture->JavaSurface());
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}
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void Cleanup() override {
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mGLContext = nullptr;
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}
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virtual nsresult Input(MediaRawData* aSample) override {
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return MediaCodecDataDecoder::Input(aSample);
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}
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bool WantCopy() {
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// Allocating a texture is incredibly slow on PowerVR
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return mGLContext->Vendor() != GLVendor::Imagination;
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}
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EGLImage CopySurface(layers::Image* img) {
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mGLContext->MakeCurrent();
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GLuint tex = CreateTextureForOffscreen(mGLContext, mGLContext->GetGLFormats(),
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img->GetSize());
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auto helper = mGLContext->BlitHelper();
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const gl::OriginPos destOrigin = gl::OriginPos::TopLeft;
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if (!helper->BlitImageToTexture(img, img->GetSize(), tex, LOCAL_GL_TEXTURE_2D,
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destOrigin))
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{
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mGLContext->fDeleteTextures(1, &tex);
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return nullptr;
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}
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EGLint attribs[] = {
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LOCAL_EGL_IMAGE_PRESERVED_KHR, LOCAL_EGL_TRUE,
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LOCAL_EGL_NONE, LOCAL_EGL_NONE
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};
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EGLContext eglContext = static_cast<GLContextEGL*>(mGLContext.get())->GetEGLContext();
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EGLImage eglImage = sEGLLibrary.fCreateImage(EGL_DISPLAY(), eglContext,
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LOCAL_EGL_GL_TEXTURE_2D_KHR,
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(EGLClientBuffer)tex, attribs);
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mGLContext->fDeleteTextures(1, &tex);
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return eglImage;
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}
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virtual nsresult PostOutput(BufferInfo::Param aInfo, MediaFormat::Param aFormat,
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const media::TimeUnit& aDuration) override {
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if (!EnsureGLContext()) {
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return NS_ERROR_FAILURE;
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}
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nsRefPtr<layers::Image> img = mImageContainer->CreateImage(ImageFormat::SURFACE_TEXTURE);
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layers::SurfaceTextureImage::Data data;
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data.mSurfTex = mSurfaceTexture.get();
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data.mSize = mConfig.mDisplay;
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data.mOriginPos = gl::OriginPos::BottomLeft;
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layers::SurfaceTextureImage* stImg = static_cast<layers::SurfaceTextureImage*>(img.get());
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stImg->SetData(data);
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if (WantCopy()) {
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EGLImage eglImage = CopySurface(img);
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if (!eglImage) {
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return NS_ERROR_FAILURE;
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}
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EGLSync eglSync = nullptr;
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if (sEGLLibrary.IsExtensionSupported(GLLibraryEGL::KHR_fence_sync) &&
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mGLContext->IsExtensionSupported(GLContext::OES_EGL_sync))
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{
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MOZ_ASSERT(mGLContext->IsCurrent());
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eglSync = sEGLLibrary.fCreateSync(EGL_DISPLAY(),
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LOCAL_EGL_SYNC_FENCE,
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nullptr);
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MOZ_ASSERT(eglSync);
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mGLContext->fFlush();
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} else {
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NS_WARNING("No EGL fence support detected, rendering artifacts may occur!");
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}
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img = mImageContainer->CreateImage(ImageFormat::EGLIMAGE);
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layers::EGLImageImage::Data data;
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data.mImage = eglImage;
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data.mSync = eglSync;
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data.mOwns = true;
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data.mSize = mConfig.mDisplay;
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data.mOriginPos = gl::OriginPos::TopLeft;
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layers::EGLImageImage* typedImg = static_cast<layers::EGLImageImage*>(img.get());
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typedImg->SetData(data);
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}
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nsresult rv;
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int32_t flags;
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NS_ENSURE_SUCCESS(rv = aInfo->Flags(&flags), rv);
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bool isSync = !!(flags & MediaCodec::BUFFER_FLAG_SYNC_FRAME);
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int32_t offset;
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NS_ENSURE_SUCCESS(rv = aInfo->Offset(&offset), rv);
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int64_t presentationTimeUs;
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NS_ENSURE_SUCCESS(rv = aInfo->PresentationTimeUs(&presentationTimeUs), rv);
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nsRefPtr<VideoData> v =
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VideoData::CreateFromImage(mConfig,
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mImageContainer,
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offset,
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presentationTimeUs,
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aDuration.ToMicroseconds(),
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img,
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isSync,
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presentationTimeUs,
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gfx::IntRect(0, 0,
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mConfig.mDisplay.width,
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mConfig.mDisplay.height));
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ENVOKE_CALLBACK(Output, v);
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return NS_OK;
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}
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protected:
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bool EnsureGLContext() {
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if (mGLContext) {
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return true;
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}
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mGLContext = GLContextProvider::CreateHeadless(false);
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return mGLContext;
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}
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layers::ImageContainer* mImageContainer;
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const VideoInfo& mConfig;
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RefPtr<AndroidSurfaceTexture> mSurfaceTexture;
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nsRefPtr<GLContext> mGLContext;
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};
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class AudioDataDecoder : public MediaCodecDataDecoder {
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public:
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AudioDataDecoder(const AudioInfo& aConfig, MediaFormat::Param aFormat, MediaDataDecoderCallback* aCallback)
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: MediaCodecDataDecoder(MediaData::Type::AUDIO_DATA, aConfig.mMimeType, aFormat, aCallback)
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{
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JNIEnv* env = GetJNIForThread();
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jni::Object::LocalRef buffer(env);
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NS_ENSURE_SUCCESS_VOID(aFormat->GetByteBuffer(NS_LITERAL_STRING("csd-0"), &buffer));
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if (!buffer && aConfig.mCodecSpecificConfig->Length() >= 2) {
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buffer = jni::Object::LocalRef::Adopt(env, env->NewDirectByteBuffer(aConfig.mCodecSpecificConfig->Elements(),
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aConfig.mCodecSpecificConfig->Length()));
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NS_ENSURE_SUCCESS_VOID(aFormat->SetByteBuffer(NS_LITERAL_STRING("csd-0"), buffer));
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}
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}
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nsresult Output(BufferInfo::Param aInfo, void* aBuffer,
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MediaFormat::Param aFormat,
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const media::TimeUnit& aDuration) {
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// The output on Android is always 16-bit signed
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nsresult rv;
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int32_t numChannels;
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NS_ENSURE_SUCCESS(rv =
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aFormat->GetInteger(NS_LITERAL_STRING("channel-count"), &numChannels), rv);
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int32_t sampleRate;
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NS_ENSURE_SUCCESS(rv =
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aFormat->GetInteger(NS_LITERAL_STRING("sample-rate"), &sampleRate), rv);
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int32_t size;
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NS_ENSURE_SUCCESS(rv = aInfo->Size(&size), rv);
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const int32_t numFrames = (size / numChannels) / 2;
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AudioDataValue* audio = new AudioDataValue[size];
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PodCopy(audio, static_cast<AudioDataValue*>(aBuffer), size);
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int32_t offset;
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NS_ENSURE_SUCCESS(rv = aInfo->Offset(&offset), rv);
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int64_t presentationTimeUs;
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NS_ENSURE_SUCCESS(rv = aInfo->PresentationTimeUs(&presentationTimeUs), rv);
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nsRefPtr<AudioData> data = new AudioData(offset, presentationTimeUs,
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aDuration.ToMicroseconds(),
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numFrames,
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audio,
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numChannels,
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sampleRate);
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ENVOKE_CALLBACK(Output, data);
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return NS_OK;
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}
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};
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bool AndroidDecoderModule::SupportsMimeType(const nsACString& aMimeType)
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{
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if (aMimeType.EqualsLiteral("video/mp4") ||
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aMimeType.EqualsLiteral("video/avc")) {
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return true;
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}
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return static_cast<bool>(mozilla::CreateDecoder(aMimeType));
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}
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already_AddRefed<MediaDataDecoder>
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AndroidDecoderModule::CreateVideoDecoder(
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const VideoInfo& aConfig,
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layers::LayersBackend aLayersBackend,
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layers::ImageContainer* aImageContainer,
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FlushableMediaTaskQueue* aVideoTaskQueue,
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MediaDataDecoderCallback* aCallback)
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{
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MediaFormat::LocalRef format;
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NS_ENSURE_SUCCESS(MediaFormat::CreateVideoFormat(
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aConfig.mMimeType,
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aConfig.mDisplay.width,
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aConfig.mDisplay.height,
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&format), nullptr);
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nsRefPtr<MediaDataDecoder> decoder =
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new VideoDataDecoder(aConfig, format, aCallback, aImageContainer);
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return decoder.forget();
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}
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already_AddRefed<MediaDataDecoder>
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AndroidDecoderModule::CreateAudioDecoder(const AudioInfo& aConfig,
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FlushableMediaTaskQueue* aAudioTaskQueue,
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MediaDataDecoderCallback* aCallback)
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{
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MOZ_ASSERT(aConfig.mBitDepth == 16, "We only handle 16-bit audio!");
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MediaFormat::LocalRef format;
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NS_ENSURE_SUCCESS(MediaFormat::CreateAudioFormat(
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aConfig.mMimeType,
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aConfig.mBitDepth,
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aConfig.mChannels,
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&format), nullptr);
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nsRefPtr<MediaDataDecoder> decoder =
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new AudioDataDecoder(aConfig, format, aCallback);
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return decoder.forget();
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}
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PlatformDecoderModule::ConversionRequired
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AndroidDecoderModule::DecoderNeedsConversion(const TrackInfo& aConfig) const
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{
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if (aConfig.IsVideo()) {
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return kNeedAnnexB;
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} else {
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return kNeedNone;
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}
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}
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MediaCodecDataDecoder::MediaCodecDataDecoder(MediaData::Type aType,
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const nsACString& aMimeType,
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MediaFormat::Param aFormat,
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MediaDataDecoderCallback* aCallback)
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: mType(aType)
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, mMimeType(aMimeType)
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, mFormat(aFormat)
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, mCallback(aCallback)
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, mInputBuffers(nullptr)
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, mOutputBuffers(nullptr)
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, mMonitor("MediaCodecDataDecoder::mMonitor")
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, mFlushing(false)
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, mDraining(false)
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, mStopping(false)
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{
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}
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MediaCodecDataDecoder::~MediaCodecDataDecoder()
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{
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Shutdown();
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}
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nsresult MediaCodecDataDecoder::Init()
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{
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return InitDecoder(nullptr);
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}
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nsresult MediaCodecDataDecoder::InitDecoder(Surface::Param aSurface)
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{
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mDecoder = CreateDecoder(mMimeType);
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if (!mDecoder) {
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ENVOKE_CALLBACK(Error);
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return NS_ERROR_FAILURE;
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}
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nsresult rv;
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NS_ENSURE_SUCCESS(rv = mDecoder->Configure(mFormat, aSurface, nullptr, 0), rv);
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NS_ENSURE_SUCCESS(rv = mDecoder->Start(), rv);
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NS_ENSURE_SUCCESS(rv = ResetInputBuffers(), rv);
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NS_ENSURE_SUCCESS(rv = ResetOutputBuffers(), rv);
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NS_NewNamedThread("MC Decoder", getter_AddRefs(mThread),
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NS_NewRunnableMethod(this, &MediaCodecDataDecoder::DecoderLoop));
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return NS_OK;
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}
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// This is in usec, so that's 10ms
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#define DECODER_TIMEOUT 10000
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#define HANDLE_DECODER_ERROR() \
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if (NS_FAILED(res)) { \
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NS_WARNING("exiting decoder loop due to exception"); \
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ENVOKE_CALLBACK(Error); \
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break; \
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}
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nsresult MediaCodecDataDecoder::GetInputBuffer(JNIEnv* env, int index, jni::Object::LocalRef* buffer)
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{
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bool retried = false;
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while (!*buffer) {
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*buffer = jni::Object::LocalRef::Adopt(env->GetObjectArrayElement(mInputBuffers.Get(), index));
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if (!*buffer) {
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if (!retried) {
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// Reset the input buffers and then try again
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nsresult res = ResetInputBuffers();
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if (NS_FAILED(res)) {
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return res;
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}
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retried = true;
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} else {
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// We already tried resetting the input buffers, return an error
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return NS_ERROR_FAILURE;
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}
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}
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}
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return NS_OK;
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}
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void MediaCodecDataDecoder::DecoderLoop()
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{
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bool outputDone = false;
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bool draining = false;
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bool waitingEOF = false;
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AutoLocalJNIFrame frame(GetJNIForThread(), 1);
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nsRefPtr<MediaRawData> sample;
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MediaFormat::LocalRef outputFormat(frame.GetEnv());
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nsresult res;
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for (;;) {
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{
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MonitorAutoLock lock(mMonitor);
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while (!mStopping && !mDraining && !mFlushing && mQueue.empty()) {
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if (mQueue.empty()) {
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// We could be waiting here forever if we don't signal that we need more input
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ENVOKE_CALLBACK(InputExhausted);
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}
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lock.Wait();
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}
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if (mStopping) {
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// Get out of the loop. This is the only exit point.
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break;
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}
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if (mFlushing) {
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mDecoder->Flush();
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ClearQueue();
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mFlushing = false;
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lock.Notify();
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continue;
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}
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if (mDraining && !sample && !waitingEOF) {
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draining = true;
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}
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// We're not stopping or draining, so try to get a sample
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if (!mQueue.empty()) {
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sample = mQueue.front();
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}
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}
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if (draining && !waitingEOF) {
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MOZ_ASSERT(!sample, "Shouldn't have a sample when pushing EOF frame");
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int32_t inputIndex;
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res = mDecoder->DequeueInputBuffer(DECODER_TIMEOUT, &inputIndex);
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HANDLE_DECODER_ERROR();
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if (inputIndex >= 0) {
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res = mDecoder->QueueInputBuffer(inputIndex, 0, 0, 0, MediaCodec::BUFFER_FLAG_END_OF_STREAM);
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HANDLE_DECODER_ERROR();
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waitingEOF = true;
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}
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}
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if (sample) {
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// We have a sample, try to feed it to the decoder
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int inputIndex;
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res = mDecoder->DequeueInputBuffer(DECODER_TIMEOUT, &inputIndex);
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HANDLE_DECODER_ERROR();
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if (inputIndex >= 0) {
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jni::Object::LocalRef buffer(frame.GetEnv());
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res = GetInputBuffer(frame.GetEnv(), inputIndex, &buffer);
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HANDLE_DECODER_ERROR();
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void* directBuffer = frame.GetEnv()->GetDirectBufferAddress(buffer.Get());
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MOZ_ASSERT(frame.GetEnv()->GetDirectBufferCapacity(buffer.Get()) >= sample->mSize,
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"Decoder buffer is not large enough for sample");
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{
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// We're feeding this to the decoder, so remove it from the queue
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MonitorAutoLock lock(mMonitor);
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mQueue.pop();
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}
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PodCopy((uint8_t*)directBuffer, sample->mData, sample->mSize);
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res = mDecoder->QueueInputBuffer(inputIndex, 0, sample->mSize,
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sample->mTime, 0);
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HANDLE_DECODER_ERROR();
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mDurations.push(media::TimeUnit::FromMicroseconds(sample->mDuration));
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sample = nullptr;
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outputDone = false;
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}
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}
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if (!outputDone) {
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BufferInfo::LocalRef bufferInfo;
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res = BufferInfo::New(&bufferInfo);
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HANDLE_DECODER_ERROR();
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int32_t outputStatus;
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res = mDecoder->DequeueOutputBuffer(bufferInfo, DECODER_TIMEOUT, &outputStatus);
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HANDLE_DECODER_ERROR();
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if (outputStatus == MediaCodec::INFO_TRY_AGAIN_LATER) {
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// We might want to call mCallback->InputExhausted() here, but there seems to be
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// some possible bad interactions here with the threading
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} else if (outputStatus == MediaCodec::INFO_OUTPUT_BUFFERS_CHANGED) {
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res = ResetOutputBuffers();
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HANDLE_DECODER_ERROR();
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} else if (outputStatus == MediaCodec::INFO_OUTPUT_FORMAT_CHANGED) {
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res = mDecoder->GetOutputFormat(ReturnTo(&outputFormat));
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HANDLE_DECODER_ERROR();
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} else if (outputStatus < 0) {
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NS_WARNING("unknown error from decoder!");
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ENVOKE_CALLBACK(Error);
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// Don't break here just in case it's recoverable. If it's not, others stuff will fail later and
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// we'll bail out.
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} else {
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int32_t flags;
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res = bufferInfo->Flags(&flags);
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HANDLE_DECODER_ERROR();
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// We have a valid buffer index >= 0 here
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if (flags & MediaCodec::BUFFER_FLAG_END_OF_STREAM) {
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if (draining) {
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draining = false;
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waitingEOF = false;
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mMonitor.Lock();
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mDraining = false;
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mMonitor.Notify();
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mMonitor.Unlock();
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|
|
ENVOKE_CALLBACK(DrainComplete);
|
|
}
|
|
|
|
mDecoder->ReleaseOutputBuffer(outputStatus, false);
|
|
outputDone = true;
|
|
|
|
// We only queue empty EOF frames, so we're done for now
|
|
continue;
|
|
}
|
|
|
|
MOZ_ASSERT(!mDurations.empty(), "Should have had a duration queued");
|
|
|
|
media::TimeUnit duration;
|
|
if (!mDurations.empty()) {
|
|
duration = mDurations.front();
|
|
mDurations.pop();
|
|
}
|
|
|
|
auto buffer = jni::Object::LocalRef::Adopt(
|
|
frame.GetEnv()->GetObjectArrayElement(mOutputBuffers.Get(), outputStatus));
|
|
if (buffer) {
|
|
// The buffer will be null on Android L if we are decoding to a Surface
|
|
void* directBuffer = frame.GetEnv()->GetDirectBufferAddress(buffer.Get());
|
|
Output(bufferInfo, directBuffer, outputFormat, duration);
|
|
}
|
|
|
|
// The Surface will be updated at this point (for video)
|
|
mDecoder->ReleaseOutputBuffer(outputStatus, true);
|
|
|
|
PostOutput(bufferInfo, outputFormat, duration);
|
|
}
|
|
}
|
|
}
|
|
|
|
Cleanup();
|
|
|
|
// We're done
|
|
MonitorAutoLock lock(mMonitor);
|
|
mStopping = false;
|
|
mMonitor.Notify();
|
|
}
|
|
|
|
void MediaCodecDataDecoder::ClearQueue()
|
|
{
|
|
mMonitor.AssertCurrentThreadOwns();
|
|
while (!mQueue.empty()) {
|
|
mQueue.pop();
|
|
}
|
|
while (!mDurations.empty()) {
|
|
mDurations.pop();
|
|
}
|
|
}
|
|
|
|
nsresult MediaCodecDataDecoder::Input(MediaRawData* aSample) {
|
|
MonitorAutoLock lock(mMonitor);
|
|
mQueue.push(aSample);
|
|
lock.NotifyAll();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult MediaCodecDataDecoder::ResetInputBuffers()
|
|
{
|
|
return mDecoder->GetInputBuffers(ReturnTo(&mInputBuffers));
|
|
}
|
|
|
|
nsresult MediaCodecDataDecoder::ResetOutputBuffers()
|
|
{
|
|
return mDecoder->GetOutputBuffers(ReturnTo(&mOutputBuffers));
|
|
}
|
|
|
|
nsresult MediaCodecDataDecoder::Flush() {
|
|
MonitorAutoLock lock(mMonitor);
|
|
mFlushing = true;
|
|
lock.Notify();
|
|
|
|
while (mFlushing) {
|
|
lock.Wait();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult MediaCodecDataDecoder::Drain() {
|
|
MonitorAutoLock lock(mMonitor);
|
|
if (mDraining) {
|
|
return NS_OK;
|
|
}
|
|
|
|
mDraining = true;
|
|
lock.Notify();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
nsresult MediaCodecDataDecoder::Shutdown() {
|
|
MonitorAutoLock lock(mMonitor);
|
|
|
|
if (!mThread || mStopping) {
|
|
// Already shutdown or in the process of doing so
|
|
return NS_OK;
|
|
}
|
|
|
|
mStopping = true;
|
|
lock.Notify();
|
|
|
|
while (mStopping) {
|
|
lock.Wait();
|
|
}
|
|
|
|
mThread->Shutdown();
|
|
mThread = nullptr;
|
|
|
|
mDecoder->Stop();
|
|
mDecoder->Release();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
} // mozilla
|