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/* -*- 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 "TheoraDecoder.h"
#include "XiphExtradata.h"
#include "gfx2DGlue.h"
#include "nsError.h"
#include "TimeUnits.h"
#include "mozilla/PodOperations.h"
#include <algorithm>
#undef LOG
#define LOG(arg, ...) MOZ_LOG(gMediaDecoderLog, mozilla::LogLevel::Debug, ("TheoraDecoder(%p)::%s: " arg, this, __func__, ##__VA_ARGS__))
namespace mozilla {
using namespace gfx;
using namespace layers;
extern LazyLogModule gMediaDecoderLog;
ogg_packet InitTheoraPacket(const unsigned char* aData, size_t aLength,
bool aBOS, bool aEOS,
int64_t aGranulepos, int64_t aPacketNo)
{
ogg_packet packet;
packet.packet = const_cast<unsigned char*>(aData);
packet.bytes = aLength;
packet.b_o_s = aBOS;
packet.e_o_s = aEOS;
packet.granulepos = aGranulepos;
packet.packetno = aPacketNo;
return packet;
}
TheoraDecoder::TheoraDecoder(const CreateDecoderParams& aParams)
: mImageContainer(aParams.mImageContainer)
, mTaskQueue(aParams.mTaskQueue)
, mCallback(aParams.mCallback)
, mIsFlushing(false)
, mTheoraSetupInfo(nullptr)
, mTheoraDecoderContext(nullptr)
, mPacketCount(0)
, mInfo(aParams.VideoConfig())
{
MOZ_COUNT_CTOR(TheoraDecoder);
}
TheoraDecoder::~TheoraDecoder()
{
MOZ_COUNT_DTOR(TheoraDecoder);
th_setup_free(mTheoraSetupInfo);
th_comment_clear(&mTheoraComment);
th_info_clear(&mTheoraInfo);
}
void
TheoraDecoder::Shutdown()
{
if (mTheoraDecoderContext) {
th_decode_free(mTheoraDecoderContext);
mTheoraDecoderContext = nullptr;
}
}
RefPtr<MediaDataDecoder::InitPromise>
TheoraDecoder::Init()
{
th_comment_init(&mTheoraComment);
th_info_init(&mTheoraInfo);
nsTArray<unsigned char*> headers;
nsTArray<size_t> headerLens;
if (!XiphExtradataToHeaders(headers, headerLens,
mInfo.mCodecSpecificConfig->Elements(),
mInfo.mCodecSpecificConfig->Length())) {
return InitPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_FATAL_ERR, __func__);
}
for (size_t i = 0; i < headers.Length(); i++) {
if (NS_FAILED(DoDecodeHeader(headers[i], headerLens[i]))) {
return InitPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_FATAL_ERR, __func__);
}
}
if (mPacketCount != 3) {
return InitPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_FATAL_ERR, __func__);
}
mTheoraDecoderContext = th_decode_alloc(&mTheoraInfo, mTheoraSetupInfo);
if (mTheoraDecoderContext) {
return InitPromise::CreateAndResolve(TrackInfo::kVideoTrack, __func__);
} else {
return InitPromise::CreateAndReject(NS_ERROR_DOM_MEDIA_FATAL_ERR, __func__);
}
}
void
TheoraDecoder::Flush()
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
mIsFlushing = true;
nsCOMPtr<nsIRunnable> r = NS_NewRunnableFunction([this] () {
// nothing to do for now.
});
SyncRunnable::DispatchToThread(mTaskQueue, r);
mIsFlushing = false;
}
nsresult
TheoraDecoder::DoDecodeHeader(const unsigned char* aData, size_t aLength)
{
bool bos = mPacketCount == 0;
ogg_packet pkt = InitTheoraPacket(aData, aLength, bos, false, 0, mPacketCount++);
int r = th_decode_headerin(&mTheoraInfo,
&mTheoraComment,
&mTheoraSetupInfo,
&pkt);
return r > 0 ? NS_OK : NS_ERROR_FAILURE;
}
MediaResult
TheoraDecoder::DoDecode(MediaRawData* aSample)
{
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
const unsigned char* aData = aSample->Data();
size_t aLength = aSample->Size();
bool bos = mPacketCount == 0;
ogg_packet pkt = InitTheoraPacket(aData, aLength, bos, false, aSample->mTimecode, mPacketCount++);
int ret = th_decode_packetin(mTheoraDecoderContext, &pkt, nullptr);
if (ret == 0 || ret == TH_DUPFRAME) {
th_ycbcr_buffer ycbcr;
th_decode_ycbcr_out(mTheoraDecoderContext, ycbcr);
int hdec = !(mTheoraInfo.pixel_fmt & 1);
int vdec = !(mTheoraInfo.pixel_fmt & 2);
VideoData::YCbCrBuffer b;
b.mPlanes[0].mData = ycbcr[0].data;
b.mPlanes[0].mStride = ycbcr[0].stride;
b.mPlanes[0].mHeight = mTheoraInfo.frame_height;
b.mPlanes[0].mWidth = mTheoraInfo.frame_width;
b.mPlanes[0].mOffset = b.mPlanes[0].mSkip = 0;
b.mPlanes[1].mData = ycbcr[1].data;
b.mPlanes[1].mStride = ycbcr[1].stride;
b.mPlanes[1].mHeight = mTheoraInfo.frame_height >> vdec;
b.mPlanes[1].mWidth = mTheoraInfo.frame_width >> hdec;
b.mPlanes[1].mOffset = b.mPlanes[1].mSkip = 0;
b.mPlanes[2].mData = ycbcr[2].data;
b.mPlanes[2].mStride = ycbcr[2].stride;
b.mPlanes[2].mHeight = mTheoraInfo.frame_height >> vdec;
b.mPlanes[2].mWidth = mTheoraInfo.frame_width >> hdec;
b.mPlanes[2].mOffset = b.mPlanes[2].mSkip = 0;
IntRect pictureArea(mTheoraInfo.pic_x, mTheoraInfo.pic_y,
mTheoraInfo.pic_width, mTheoraInfo.pic_height);
VideoInfo info;
info.mDisplay = mInfo.mDisplay;
RefPtr<VideoData> v =
VideoData::CreateAndCopyData(info,
mImageContainer,
aSample->mOffset,
aSample->mTime,
aSample->mDuration,
b,
aSample->mKeyframe,
aSample->mTimecode,
mInfo.ScaledImageRect(mTheoraInfo.frame_width,
mTheoraInfo.frame_height));
if (!v) {
LOG("Image allocation error source %ldx%ld display %ldx%ld picture %ldx%ld",
mTheoraInfo.frame_width, mTheoraInfo.frame_height, mInfo.mDisplay.width, mInfo.mDisplay.height,
mInfo.mImage.width, mInfo.mImage.height);
return MediaResult(NS_ERROR_OUT_OF_MEMORY, __func__);
}
mCallback->Output(v);
return NS_OK;
} else {
LOG("Theora Decode error: %d", ret);
return MediaResult(NS_ERROR_DOM_MEDIA_DECODE_ERR,
RESULT_DETAIL("Theora decode error:%d", ret));
}
}
void
TheoraDecoder::ProcessDecode(MediaRawData* aSample)
{
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
if (mIsFlushing) {
return;
}
MediaResult rv = DoDecode(aSample);
if (NS_FAILED(rv)) {
mCallback->Error(rv);
} else {
mCallback->InputExhausted();
}
}
void
TheoraDecoder::Input(MediaRawData* aSample)
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
mTaskQueue->Dispatch(NewRunnableMethod<RefPtr<MediaRawData>>(
this, &TheoraDecoder::ProcessDecode, aSample));
}
void
TheoraDecoder::ProcessDrain()
{
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
mCallback->DrainComplete();
}
void
TheoraDecoder::Drain()
{
MOZ_ASSERT(mCallback->OnReaderTaskQueue());
mTaskQueue->Dispatch(NewRunnableMethod(this, &TheoraDecoder::ProcessDrain));
}
/* static */
bool
TheoraDecoder::IsTheora(const nsACString& aMimeType)
{
return aMimeType.EqualsLiteral("video/theora");
}
} // namespace mozilla
#undef LOG
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