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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 <algorithm>
#include "ImageContainer.h"
#include "TimeUnits.h"
#include "XiphExtradata.h"
#include "gfx2DGlue.h"
#include "mozilla/PodOperations.h"
#include "mozilla/TaskQueue.h"
#include "nsError.h"
#include "VideoUtils.h"
#undef LOG
#define LOG(arg, ...) \
DDMOZ_LOG(gMediaDecoderLog, mozilla::LogLevel::Debug, "::%s: " arg, \
__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)
: mImageAllocator(aParams.mKnowsCompositor),
mImageContainer(aParams.mImageContainer),
mTaskQueue(
new TaskQueue(GetMediaThreadPool(MediaThreadType::PLATFORM_DECODER),
"TheoraDecoder")),
mTheoraInfo{},
mTheoraComment{},
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);
}
RefPtr<ShutdownPromise> TheoraDecoder::Shutdown() {
RefPtr<TheoraDecoder> self = this;
return InvokeAsync(mTaskQueue, __func__, [self, this]() {
if (mTheoraDecoderContext) {
th_decode_free(mTheoraDecoderContext);
mTheoraDecoderContext = nullptr;
}
return mTaskQueue->BeginShutdown();
});
}
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(
MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
RESULT_DETAIL("Could not get theora header.")),
__func__);
}
for (size_t i = 0; i < headers.Length(); i++) {
if (NS_FAILED(DoDecodeHeader(headers[i], headerLens[i]))) {
return InitPromise::CreateAndReject(
MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
RESULT_DETAIL("Could not decode theora header.")),
__func__);
}
}
if (mPacketCount != 3) {
return InitPromise::CreateAndReject(
MediaResult(NS_ERROR_DOM_MEDIA_FATAL_ERR,
RESULT_DETAIL("Packet count is wrong.")),
__func__);
}
mTheoraDecoderContext = th_decode_alloc(&mTheoraInfo, mTheoraSetupInfo);
if (mTheoraDecoderContext) {
return InitPromise::CreateAndResolve(TrackInfo::kVideoTrack, __func__);
} else {
return InitPromise::CreateAndReject(
MediaResult(NS_ERROR_OUT_OF_MEMORY,
RESULT_DETAIL("Could not allocate theora decoder.")),
__func__);
}
}
RefPtr<MediaDataDecoder::FlushPromise> TheoraDecoder::Flush() {
return InvokeAsync(mTaskQueue, __func__, []() {
return FlushPromise::CreateAndResolve(true, __func__);
});
}
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;
}
RefPtr<MediaDataDecoder::DecodePromise> TheoraDecoder::ProcessDecode(
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.ToMicroseconds(), 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].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].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].mSkip = 0;
b.mYUVColorSpace =
DefaultColorSpace({mTheoraInfo.frame_width, mTheoraInfo.frame_height});
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),
mImageAllocator);
if (!v) {
LOG("Image allocation error source %ux%u display %ux%u picture %ux%u",
mTheoraInfo.frame_width, mTheoraInfo.frame_height,
mInfo.mDisplay.width, mInfo.mDisplay.height, mInfo.mImage.width,
mInfo.mImage.height);
return DecodePromise::CreateAndReject(
MediaResult(NS_ERROR_OUT_OF_MEMORY,
RESULT_DETAIL("Insufficient memory")),
__func__);
}
return DecodePromise::CreateAndResolve(DecodedData{v}, __func__);
}
LOG("Theora Decode error: %d", ret);
return DecodePromise::CreateAndReject(
MediaResult(NS_ERROR_DOM_MEDIA_DECODE_ERR,
RESULT_DETAIL("Theora decode error:%d", ret)),
__func__);
}
RefPtr<MediaDataDecoder::DecodePromise> TheoraDecoder::Decode(
MediaRawData* aSample) {
return InvokeAsync<MediaRawData*>(mTaskQueue, this, __func__,
&TheoraDecoder::ProcessDecode, aSample);
}
RefPtr<MediaDataDecoder::DecodePromise> TheoraDecoder::Drain() {
return InvokeAsync(mTaskQueue, __func__, [] {
return DecodePromise::CreateAndResolve(DecodedData(), __func__);
});
}
/* static */
bool TheoraDecoder::IsTheora(const nsACString& aMimeType) {
return aMimeType.EqualsLiteral("video/theora");
}
} // namespace mozilla
#undef LOG
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