mirror of
https://github.com/mozilla/gecko-dev.git
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599 lines
20 KiB
C++
599 lines
20 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* 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 "GonkIOSurfaceImage.h"
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#include "MediaDecoderReader.h"
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#include "AbstractMediaDecoder.h"
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#include "MediaDecoderStateMachine.h"
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#include "VideoUtils.h"
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#include "ImageContainer.h"
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#include "mozilla/mozalloc.h"
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#include "mozilla/StandardInteger.h"
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#include <algorithm>
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namespace mozilla {
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using layers::ImageContainer;
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using layers::PlanarYCbCrImage;
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// Verify these values are sane. Once we've checked the frame sizes, we then
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// can do less integer overflow checking.
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PR_STATIC_ASSERT(MAX_VIDEO_WIDTH < PlanarYCbCrImage::MAX_DIMENSION);
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PR_STATIC_ASSERT(MAX_VIDEO_HEIGHT < PlanarYCbCrImage::MAX_DIMENSION);
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PR_STATIC_ASSERT(PlanarYCbCrImage::MAX_DIMENSION < UINT32_MAX / PlanarYCbCrImage::MAX_DIMENSION);
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// Un-comment to enable logging of seek bisections.
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//#define SEEK_LOGGING
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#ifdef PR_LOGGING
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extern PRLogModuleInfo* gMediaDecoderLog;
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#define LOG(type, msg) PR_LOG(gMediaDecoderLog, type, msg)
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#ifdef SEEK_LOGGING
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#define SEEK_LOG(type, msg) PR_LOG(gMediaDecoderLog, type, msg)
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#else
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#define SEEK_LOG(type, msg)
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#endif
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#else
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#define LOG(type, msg)
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#define SEEK_LOG(type, msg)
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#endif
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void
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AudioData::EnsureAudioBuffer()
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{
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if (mAudioBuffer)
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return;
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mAudioBuffer = SharedBuffer::Create(mFrames*mChannels*sizeof(AudioDataValue));
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AudioDataValue* data = static_cast<AudioDataValue*>(mAudioBuffer->Data());
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for (uint32_t i = 0; i < mFrames; ++i) {
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for (uint32_t j = 0; j < mChannels; ++j) {
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data[j*mFrames + i] = mAudioData[i*mChannels + j];
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}
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}
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}
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static bool
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ValidatePlane(const VideoData::YCbCrBuffer::Plane& aPlane)
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{
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return aPlane.mWidth <= PlanarYCbCrImage::MAX_DIMENSION &&
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aPlane.mHeight <= PlanarYCbCrImage::MAX_DIMENSION &&
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aPlane.mWidth * aPlane.mHeight < MAX_VIDEO_WIDTH * MAX_VIDEO_HEIGHT &&
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aPlane.mStride > 0;
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}
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static bool
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IsYV12Format(const VideoData::YCbCrBuffer::Plane& aYPlane,
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const VideoData::YCbCrBuffer::Plane& aCbPlane,
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const VideoData::YCbCrBuffer::Plane& aCrPlane)
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{
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return
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aYPlane.mWidth % 2 == 0 &&
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aYPlane.mHeight % 2 == 0 &&
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aYPlane.mWidth / 2 == aCbPlane.mWidth &&
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aYPlane.mHeight / 2 == aCbPlane.mHeight &&
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aCbPlane.mWidth == aCrPlane.mWidth &&
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aCbPlane.mHeight == aCrPlane.mHeight;
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}
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bool
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VideoInfo::ValidateVideoRegion(const nsIntSize& aFrame,
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const nsIntRect& aPicture,
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const nsIntSize& aDisplay)
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{
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return
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aFrame.width <= PlanarYCbCrImage::MAX_DIMENSION &&
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aFrame.height <= PlanarYCbCrImage::MAX_DIMENSION &&
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aFrame.width * aFrame.height <= MAX_VIDEO_WIDTH * MAX_VIDEO_HEIGHT &&
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aFrame.width * aFrame.height != 0 &&
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aPicture.width <= PlanarYCbCrImage::MAX_DIMENSION &&
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aPicture.x < PlanarYCbCrImage::MAX_DIMENSION &&
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aPicture.x + aPicture.width < PlanarYCbCrImage::MAX_DIMENSION &&
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aPicture.height <= PlanarYCbCrImage::MAX_DIMENSION &&
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aPicture.y < PlanarYCbCrImage::MAX_DIMENSION &&
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aPicture.y + aPicture.height < PlanarYCbCrImage::MAX_DIMENSION &&
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aPicture.width * aPicture.height <= MAX_VIDEO_WIDTH * MAX_VIDEO_HEIGHT &&
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aPicture.width * aPicture.height != 0 &&
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aDisplay.width <= PlanarYCbCrImage::MAX_DIMENSION &&
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aDisplay.height <= PlanarYCbCrImage::MAX_DIMENSION &&
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aDisplay.width * aDisplay.height <= MAX_VIDEO_WIDTH * MAX_VIDEO_HEIGHT &&
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aDisplay.width * aDisplay.height != 0;
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}
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VideoData:: VideoData(int64_t aOffset, int64_t aTime, int64_t aEndTime, int64_t aTimecode)
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: mOffset(aOffset),
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mTime(aTime),
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mEndTime(aEndTime),
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mTimecode(aTimecode),
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mDuplicate(true),
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mKeyframe(false)
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{
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MOZ_COUNT_CTOR(VideoData);
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NS_ASSERTION(aEndTime >= aTime, "Frame must start before it ends.");
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}
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VideoData::VideoData(int64_t aOffset,
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int64_t aTime,
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int64_t aEndTime,
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bool aKeyframe,
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int64_t aTimecode,
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nsIntSize aDisplay)
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: mDisplay(aDisplay),
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mOffset(aOffset),
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mTime(aTime),
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mEndTime(aEndTime),
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mTimecode(aTimecode),
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mDuplicate(false),
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mKeyframe(aKeyframe)
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{
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MOZ_COUNT_CTOR(VideoData);
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NS_ASSERTION(aEndTime >= aTime, "Frame must start before it ends.");
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}
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VideoData::~VideoData()
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{
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MOZ_COUNT_DTOR(VideoData);
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}
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VideoData* VideoData::Create(VideoInfo& aInfo,
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ImageContainer* aContainer,
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Image* aImage,
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int64_t aOffset,
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int64_t aTime,
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int64_t aEndTime,
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const YCbCrBuffer& aBuffer,
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bool aKeyframe,
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int64_t aTimecode,
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nsIntRect aPicture)
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{
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if (!aImage && !aContainer) {
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// Create a dummy VideoData with no image. This gives us something to
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// send to media streams if necessary.
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nsAutoPtr<VideoData> v(new VideoData(aOffset,
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aTime,
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aEndTime,
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aKeyframe,
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aTimecode,
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aInfo.mDisplay));
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return v.forget();
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}
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// The following situation should never happen unless there is a bug
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// in the decoder
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if (aBuffer.mPlanes[1].mWidth != aBuffer.mPlanes[2].mWidth ||
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aBuffer.mPlanes[1].mHeight != aBuffer.mPlanes[2].mHeight) {
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NS_ERROR("C planes with different sizes");
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return nullptr;
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}
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// The following situations could be triggered by invalid input
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if (aPicture.width <= 0 || aPicture.height <= 0) {
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NS_WARNING("Empty picture rect");
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return nullptr;
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}
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if (!ValidatePlane(aBuffer.mPlanes[0]) || !ValidatePlane(aBuffer.mPlanes[1]) ||
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!ValidatePlane(aBuffer.mPlanes[2])) {
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NS_WARNING("Invalid plane size");
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return nullptr;
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}
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// Ensure the picture size specified in the headers can be extracted out of
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// the frame we've been supplied without indexing out of bounds.
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CheckedUint32 xLimit = aPicture.x + CheckedUint32(aPicture.width);
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CheckedUint32 yLimit = aPicture.y + CheckedUint32(aPicture.height);
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if (!xLimit.isValid() || xLimit.value() > aBuffer.mPlanes[0].mStride ||
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!yLimit.isValid() || yLimit.value() > aBuffer.mPlanes[0].mHeight)
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{
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// The specified picture dimensions can't be contained inside the video
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// frame, we'll stomp memory if we try to copy it. Fail.
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NS_WARNING("Overflowing picture rect");
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return nullptr;
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}
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nsAutoPtr<VideoData> v(new VideoData(aOffset,
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aTime,
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aEndTime,
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aKeyframe,
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aTimecode,
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aInfo.mDisplay));
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const YCbCrBuffer::Plane &Y = aBuffer.mPlanes[0];
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const YCbCrBuffer::Plane &Cb = aBuffer.mPlanes[1];
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const YCbCrBuffer::Plane &Cr = aBuffer.mPlanes[2];
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if (!aImage) {
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// Currently our decoder only knows how to output to PLANAR_YCBCR
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// format.
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ImageFormat format[2] = {PLANAR_YCBCR, GRALLOC_PLANAR_YCBCR};
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if (IsYV12Format(Y, Cb, Cr)) {
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v->mImage = aContainer->CreateImage(format, 2);
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} else {
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v->mImage = aContainer->CreateImage(format, 1);
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}
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} else {
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v->mImage = aImage;
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}
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if (!v->mImage) {
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return nullptr;
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}
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NS_ASSERTION(v->mImage->GetFormat() == PLANAR_YCBCR ||
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v->mImage->GetFormat() == GRALLOC_PLANAR_YCBCR,
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"Wrong format?");
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PlanarYCbCrImage* videoImage = static_cast<PlanarYCbCrImage*>(v->mImage.get());
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PlanarYCbCrImage::Data data;
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data.mYChannel = Y.mData + Y.mOffset;
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data.mYSize = gfxIntSize(Y.mWidth, Y.mHeight);
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data.mYStride = Y.mStride;
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data.mYSkip = Y.mSkip;
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data.mCbChannel = Cb.mData + Cb.mOffset;
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data.mCrChannel = Cr.mData + Cr.mOffset;
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data.mCbCrSize = gfxIntSize(Cb.mWidth, Cb.mHeight);
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data.mCbCrStride = Cb.mStride;
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data.mCbSkip = Cb.mSkip;
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data.mCrSkip = Cr.mSkip;
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data.mPicX = aPicture.x;
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data.mPicY = aPicture.y;
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data.mPicSize = gfxIntSize(aPicture.width, aPicture.height);
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data.mStereoMode = aInfo.mStereoMode;
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videoImage->SetDelayedConversion(true);
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if (!aImage) {
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videoImage->SetData(data);
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} else {
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videoImage->SetDataNoCopy(data);
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}
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return v.forget();
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}
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VideoData* VideoData::Create(VideoInfo& aInfo,
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ImageContainer* aContainer,
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int64_t aOffset,
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int64_t aTime,
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int64_t aEndTime,
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const YCbCrBuffer& aBuffer,
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bool aKeyframe,
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int64_t aTimecode,
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nsIntRect aPicture)
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{
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return Create(aInfo, aContainer, nullptr, aOffset, aTime, aEndTime, aBuffer,
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aKeyframe, aTimecode, aPicture);
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}
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VideoData* VideoData::Create(VideoInfo& aInfo,
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Image* aImage,
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int64_t aOffset,
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int64_t aTime,
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int64_t aEndTime,
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const YCbCrBuffer& aBuffer,
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bool aKeyframe,
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int64_t aTimecode,
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nsIntRect aPicture)
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{
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return Create(aInfo, nullptr, aImage, aOffset, aTime, aEndTime, aBuffer,
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aKeyframe, aTimecode, aPicture);
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}
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VideoData* VideoData::CreateFromImage(VideoInfo& aInfo,
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ImageContainer* aContainer,
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int64_t aOffset,
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int64_t aTime,
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int64_t aEndTime,
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const nsRefPtr<Image>& aImage,
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bool aKeyframe,
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int64_t aTimecode,
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nsIntRect aPicture)
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{
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nsAutoPtr<VideoData> v(new VideoData(aOffset,
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aTime,
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aEndTime,
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aKeyframe,
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aTimecode,
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aInfo.mDisplay));
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v->mImage = aImage;
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return v.forget();
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}
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#ifdef MOZ_WIDGET_GONK
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VideoData* VideoData::Create(VideoInfo& aInfo,
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ImageContainer* aContainer,
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int64_t aOffset,
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int64_t aTime,
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int64_t aEndTime,
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mozilla::layers::GraphicBufferLocked* aBuffer,
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bool aKeyframe,
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int64_t aTimecode,
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nsIntRect aPicture)
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{
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if (!aContainer) {
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// Create a dummy VideoData with no image. This gives us something to
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// send to media streams if necessary.
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nsAutoPtr<VideoData> v(new VideoData(aOffset,
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aTime,
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aEndTime,
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aKeyframe,
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aTimecode,
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aInfo.mDisplay));
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return v.forget();
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}
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// The following situations could be triggered by invalid input
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if (aPicture.width <= 0 || aPicture.height <= 0) {
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NS_WARNING("Empty picture rect");
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return nullptr;
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}
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// Ensure the picture size specified in the headers can be extracted out of
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// the frame we've been supplied without indexing out of bounds.
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CheckedUint32 xLimit = aPicture.x + CheckedUint32(aPicture.width);
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CheckedUint32 yLimit = aPicture.y + CheckedUint32(aPicture.height);
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if (!xLimit.isValid() || !yLimit.isValid())
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{
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// The specified picture dimensions can't be contained inside the video
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// frame, we'll stomp memory if we try to copy it. Fail.
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NS_WARNING("Overflowing picture rect");
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return nullptr;
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}
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nsAutoPtr<VideoData> v(new VideoData(aOffset,
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aTime,
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aEndTime,
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aKeyframe,
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aTimecode,
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aInfo.mDisplay));
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ImageFormat format = GONK_IO_SURFACE;
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v->mImage = aContainer->CreateImage(&format, 1);
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if (!v->mImage) {
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return nullptr;
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}
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NS_ASSERTION(v->mImage->GetFormat() == GONK_IO_SURFACE,
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"Wrong format?");
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typedef mozilla::layers::GonkIOSurfaceImage GonkIOSurfaceImage;
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GonkIOSurfaceImage* videoImage = static_cast<GonkIOSurfaceImage*>(v->mImage.get());
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GonkIOSurfaceImage::Data data;
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data.mPicSize = gfxIntSize(aPicture.width, aPicture.height);
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data.mGraphicBuffer = aBuffer;
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videoImage->SetData(data);
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return v.forget();
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}
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#endif // MOZ_WIDGET_GONK
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void* MediaDecoderReader::VideoQueueMemoryFunctor::operator()(void* anObject) {
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const VideoData* v = static_cast<const VideoData*>(anObject);
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if (!v->mImage) {
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return nullptr;
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}
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NS_ASSERTION(v->mImage->GetFormat() == PLANAR_YCBCR,
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"Wrong format?");
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mozilla::layers::PlanarYCbCrImage* vi = static_cast<mozilla::layers::PlanarYCbCrImage*>(v->mImage.get());
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mResult += vi->GetDataSize();
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return nullptr;
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}
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MediaDecoderReader::MediaDecoderReader(AbstractMediaDecoder* aDecoder)
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: mDecoder(aDecoder)
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{
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MOZ_COUNT_CTOR(MediaDecoderReader);
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}
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MediaDecoderReader::~MediaDecoderReader()
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{
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ResetDecode();
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MOZ_COUNT_DTOR(MediaDecoderReader);
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}
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nsresult MediaDecoderReader::ResetDecode()
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{
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nsresult res = NS_OK;
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VideoQueue().Reset();
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AudioQueue().Reset();
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return res;
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}
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VideoData* MediaDecoderReader::DecodeToFirstVideoData()
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{
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bool eof = false;
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while (!eof && VideoQueue().GetSize() == 0) {
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{
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ReentrantMonitorAutoEnter decoderMon(mDecoder->GetReentrantMonitor());
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if (mDecoder->IsShutdown()) {
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return nullptr;
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}
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}
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bool keyframeSkip = false;
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eof = !DecodeVideoFrame(keyframeSkip, 0);
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}
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VideoData* d = nullptr;
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return (d = VideoQueue().PeekFront()) ? d : nullptr;
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}
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AudioData* MediaDecoderReader::DecodeToFirstAudioData()
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{
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bool eof = false;
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while (!eof && AudioQueue().GetSize() == 0) {
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{
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ReentrantMonitorAutoEnter decoderMon(mDecoder->GetReentrantMonitor());
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if (mDecoder->IsShutdown()) {
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return nullptr;
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}
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}
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eof = !DecodeAudioData();
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}
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AudioData* d = nullptr;
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return (d = AudioQueue().PeekFront()) ? d : nullptr;
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}
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VideoData* MediaDecoderReader::FindStartTime(int64_t& aOutStartTime)
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{
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NS_ASSERTION(mDecoder->OnStateMachineThread() || mDecoder->OnDecodeThread(),
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"Should be on state machine or decode thread.");
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// Extract the start times of the bitstreams in order to calculate
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// the duration.
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int64_t videoStartTime = INT64_MAX;
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int64_t audioStartTime = INT64_MAX;
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VideoData* videoData = nullptr;
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if (HasVideo()) {
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videoData = DecodeToFirstVideoData();
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if (videoData) {
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videoStartTime = videoData->mTime;
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}
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}
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if (HasAudio()) {
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AudioData* audioData = DecodeToFirstAudioData();
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if (audioData) {
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audioStartTime = audioData->mTime;
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}
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}
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int64_t startTime = std::min(videoStartTime, audioStartTime);
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if (startTime != INT64_MAX) {
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aOutStartTime = startTime;
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}
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return videoData;
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}
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nsresult MediaDecoderReader::DecodeToTarget(int64_t aTarget)
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{
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// Decode forward to the target frame. Start with video, if we have it.
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if (HasVideo()) {
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bool eof = false;
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int64_t startTime = -1;
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nsAutoPtr<VideoData> video;
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while (HasVideo() && !eof) {
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while (VideoQueue().GetSize() == 0 && !eof) {
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bool skip = false;
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eof = !DecodeVideoFrame(skip, 0);
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{
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ReentrantMonitorAutoEnter decoderMon(mDecoder->GetReentrantMonitor());
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if (mDecoder->IsShutdown()) {
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return NS_ERROR_FAILURE;
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}
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}
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}
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if (VideoQueue().GetSize() == 0) {
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// Hit end of file, we want to display the last frame of the video.
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if (video) {
|
|
VideoQueue().PushFront(video.forget());
|
|
}
|
|
break;
|
|
}
|
|
video = VideoQueue().PeekFront();
|
|
// If the frame end time is less than the seek target, we won't want
|
|
// to display this frame after the seek, so discard it.
|
|
if (video && video->mEndTime <= aTarget) {
|
|
if (startTime == -1) {
|
|
startTime = video->mTime;
|
|
}
|
|
VideoQueue().PopFront();
|
|
} else {
|
|
video.forget();
|
|
break;
|
|
}
|
|
}
|
|
{
|
|
ReentrantMonitorAutoEnter decoderMon(mDecoder->GetReentrantMonitor());
|
|
if (mDecoder->IsShutdown()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
LOG(PR_LOG_DEBUG, ("First video frame after decode is %lld", startTime));
|
|
}
|
|
|
|
if (HasAudio()) {
|
|
// Decode audio forward to the seek target.
|
|
bool eof = false;
|
|
while (HasAudio() && !eof) {
|
|
while (!eof && AudioQueue().GetSize() == 0) {
|
|
eof = !DecodeAudioData();
|
|
{
|
|
ReentrantMonitorAutoEnter decoderMon(mDecoder->GetReentrantMonitor());
|
|
if (mDecoder->IsShutdown()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
const AudioData* audio = AudioQueue().PeekFront();
|
|
if (!audio)
|
|
break;
|
|
CheckedInt64 startFrame = UsecsToFrames(audio->mTime, mInfo.mAudioRate);
|
|
CheckedInt64 targetFrame = UsecsToFrames(aTarget, mInfo.mAudioRate);
|
|
if (!startFrame.isValid() || !targetFrame.isValid()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (startFrame.value() + audio->mFrames <= targetFrame.value()) {
|
|
// Our seek target lies after the frames in this AudioData. Pop it
|
|
// off the queue, and keep decoding forwards.
|
|
delete AudioQueue().PopFront();
|
|
audio = nullptr;
|
|
continue;
|
|
}
|
|
if (startFrame.value() > targetFrame.value()) {
|
|
// The seek target doesn't lie in the audio block just after the last
|
|
// audio frames we've seen which were before the seek target. This
|
|
// could have been the first audio data we've seen after seek, i.e. the
|
|
// seek terminated after the seek target in the audio stream. Just
|
|
// abort the audio decode-to-target, the state machine will play
|
|
// silence to cover the gap. Typically this happens in poorly muxed
|
|
// files.
|
|
NS_WARNING("Audio not synced after seek, maybe a poorly muxed file?");
|
|
break;
|
|
}
|
|
|
|
// The seek target lies somewhere in this AudioData's frames, strip off
|
|
// any frames which lie before the seek target, so we'll begin playback
|
|
// exactly at the seek target.
|
|
NS_ASSERTION(targetFrame.value() >= startFrame.value(),
|
|
"Target must at or be after data start.");
|
|
NS_ASSERTION(targetFrame.value() < startFrame.value() + audio->mFrames,
|
|
"Data must end after target.");
|
|
|
|
int64_t framesToPrune = targetFrame.value() - startFrame.value();
|
|
if (framesToPrune > audio->mFrames) {
|
|
// We've messed up somehow. Don't try to trim frames, the |frames|
|
|
// variable below will overflow.
|
|
NS_WARNING("Can't prune more frames that we have!");
|
|
break;
|
|
}
|
|
uint32_t frames = audio->mFrames - static_cast<uint32_t>(framesToPrune);
|
|
uint32_t channels = audio->mChannels;
|
|
nsAutoArrayPtr<AudioDataValue> audioData(new AudioDataValue[frames * channels]);
|
|
memcpy(audioData.get(),
|
|
audio->mAudioData.get() + (framesToPrune * channels),
|
|
frames * channels * sizeof(AudioDataValue));
|
|
CheckedInt64 duration = FramesToUsecs(frames, mInfo.mAudioRate);
|
|
if (!duration.isValid()) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsAutoPtr<AudioData> data(new AudioData(audio->mOffset,
|
|
aTarget,
|
|
duration.value(),
|
|
frames,
|
|
audioData.forget(),
|
|
channels));
|
|
delete AudioQueue().PopFront();
|
|
AudioQueue().PushFront(data.forget());
|
|
break;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace mozilla
|
|
|