/*! Constructs a DefaultCatalog with given signature and language and reads
the catalog from disk.
InitCheck() will be B_OK if catalog could be loaded successfully, it will
give an appropriate error-code otherwise.
*/
DefaultCatalog::DefaultCatalog(const entry_ref &catalogOwner, const char *language,
uint32 fingerprint)
:
HashMapCatalog("", language, fingerprint)
{
// We created the catalog with an invalid signature, but we fix that now.
SetSignature(catalogOwner);
status_t status;
// search for catalog living in sub-folder of app's folder:
node_ref nref;
nref.device = catalogOwner.device;
nref.node = catalogOwner.directory;
BDirectory appDir(&nref);
BString catalogName("locale/");
catalogName << kCatFolder
<< "/" << fSignature
<< "/" << fLanguageName
<< kCatExtension;
BPath catalogPath(&appDir, catalogName.String());
status = ReadFromFile(catalogPath.Path());
if (status != B_OK) {
// search in data folders
directory_which which[] = {
B_USER_DATA_DIRECTORY,
B_COMMON_DATA_DIRECTORY,
B_SYSTEM_DATA_DIRECTORY
};
for (size_t i = 0; i < sizeof(which) / sizeof(which[0]); i++) {
BPath path;
if (find_directory(which[i], &path) == B_OK) {
BString catalogName(path.Path());
catalogName << "/locale/" << kCatFolder
<< "/" << fSignature
<< "/" << fLanguageName
<< kCatExtension;
status = ReadFromFile(catalogName.String());
if (status == B_OK)
break;
}
}
}
if (status != B_OK) {
// give lowest priority to catalog embedded as resource in application
// executable, so they can be overridden easily.
status = ReadFromResource(catalogOwner);
}
fInitCheck = status;
}
nsresult nsRawReader::ReadMetadata(nsVideoInfo* aInfo,
nsHTMLMediaElement::MetadataTags** aTags)
{
NS_ASSERTION(mDecoder->OnDecodeThread(),
"Should be on decode thread.");
MediaResource* resource = mDecoder->GetResource();
NS_ASSERTION(resource, "Decoder has no media resource");
if (!ReadFromResource(resource, reinterpret_cast<uint8_t*>(&mMetadata),
sizeof(mMetadata)))
return NS_ERROR_FAILURE;
// Validate the header
if (!(mMetadata.headerPacketID == 0 /* Packet ID of 0 for the header*/ &&
mMetadata.codecID == RAW_ID /* "YUV" */ &&
mMetadata.majorVersion == 0 &&
mMetadata.minorVersion == 1))
return NS_ERROR_FAILURE;
CheckedUint32 dummy = CheckedUint32(static_cast<uint32_t>(mMetadata.frameWidth)) *
static_cast<uint32_t>(mMetadata.frameHeight);
NS_ENSURE_TRUE(dummy.isValid(), NS_ERROR_FAILURE);
if (mMetadata.aspectDenominator == 0 ||
mMetadata.framerateDenominator == 0)
return NS_ERROR_FAILURE; // Invalid data
// Determine and verify frame display size.
float pixelAspectRatio = static_cast<float>(mMetadata.aspectNumerator) /
mMetadata.aspectDenominator;
nsIntSize display(mMetadata.frameWidth, mMetadata.frameHeight);
ScaleDisplayByAspectRatio(display, pixelAspectRatio);
mPicture = nsIntRect(0, 0, mMetadata.frameWidth, mMetadata.frameHeight);
nsIntSize frameSize(mMetadata.frameWidth, mMetadata.frameHeight);
if (!nsVideoInfo::ValidateVideoRegion(frameSize, mPicture, display)) {
// Video track's frame sizes will overflow. Fail.
return NS_ERROR_FAILURE;
}
mInfo.mHasVideo = true;
mInfo.mHasAudio = false;
mInfo.mDisplay = display;
mFrameRate = static_cast<float>(mMetadata.framerateNumerator) /
mMetadata.framerateDenominator;
// Make some sanity checks
if (mFrameRate > 45 ||
mFrameRate == 0 ||
pixelAspectRatio == 0 ||
mMetadata.frameWidth > 2000 ||
mMetadata.frameHeight > 2000 ||
mMetadata.chromaChannelBpp != 4 ||
mMetadata.lumaChannelBpp != 8 ||
mMetadata.colorspace != 1 /* 4:2:0 */)
return NS_ERROR_FAILURE;
mFrameSize = mMetadata.frameWidth * mMetadata.frameHeight *
(mMetadata.lumaChannelBpp + mMetadata.chromaChannelBpp) / 8.0 +
sizeof(nsRawPacketHeader);
int64_t length = resource->GetLength();
if (length != -1) {
mozilla::ReentrantMonitorAutoEnter autoMonitor(mDecoder->GetReentrantMonitor());
mDecoder->GetStateMachine()->SetDuration(USECS_PER_S *
(length - sizeof(nsRawVideoHeader)) /
(mFrameSize * mFrameRate));
}
*aInfo = mInfo;
*aTags = nullptr;
return NS_OK;
}
/*! Constructs a DefaultCatalog and reads it from the resources of the
given entry-ref (which usually is an app- or add-on-file).
InitCheck() will be B_OK if catalog could be loaded successfully, it will
give an appropriate error-code otherwise.
*/
DefaultCatalog::DefaultCatalog(entry_ref *appOrAddOnRef)
:
HashMapCatalog("", "", 0)
{
fInitCheck = ReadFromResource(*appOrAddOnRef);
}
bool nsRawReader::DecodeVideoFrame(bool &aKeyframeSkip,
int64_t aTimeThreshold)
{
NS_ASSERTION(mDecoder->OnDecodeThread(),
"Should be on decode thread.");
// Record number of frames decoded and parsed. Automatically update the
// stats counters using the AutoNotifyDecoded stack-based class.
uint32_t parsed = 0, decoded = 0;
nsMediaDecoder::AutoNotifyDecoded autoNotify(mDecoder, parsed, decoded);
if (!mFrameSize)
return false; // Metadata read failed. We should refuse to play.
int64_t currentFrameTime = USECS_PER_S * mCurrentFrame / mFrameRate;
uint32_t length = mFrameSize - sizeof(nsRawPacketHeader);
nsAutoArrayPtr<uint8_t> buffer(new uint8_t[length]);
MediaResource* resource = mDecoder->GetResource();
NS_ASSERTION(resource, "Decoder has no media resource");
// We're always decoding one frame when called
while(true) {
nsRawPacketHeader header;
// Read in a packet header and validate
if (!(ReadFromResource(resource, reinterpret_cast<uint8_t*>(&header),
sizeof(header))) ||
!(header.packetID == 0xFF && header.codecID == RAW_ID /* "YUV" */)) {
return false;
}
if (!ReadFromResource(resource, buffer, length)) {
return false;
}
parsed++;
if (currentFrameTime >= aTimeThreshold)
break;
mCurrentFrame++;
currentFrameTime += static_cast<double>(USECS_PER_S) / mFrameRate;
}
VideoData::YCbCrBuffer b;
b.mPlanes[0].mData = buffer;
b.mPlanes[0].mStride = mMetadata.frameWidth * mMetadata.lumaChannelBpp / 8.0;
b.mPlanes[0].mHeight = mMetadata.frameHeight;
b.mPlanes[0].mWidth = mMetadata.frameWidth;
b.mPlanes[0].mOffset = b.mPlanes[0].mSkip = 0;
uint32_t cbcrStride = mMetadata.frameWidth * mMetadata.chromaChannelBpp / 8.0;
b.mPlanes[1].mData = buffer + mMetadata.frameHeight * b.mPlanes[0].mStride;
b.mPlanes[1].mStride = cbcrStride;
b.mPlanes[1].mHeight = mMetadata.frameHeight / 2;
b.mPlanes[1].mWidth = mMetadata.frameWidth / 2;
b.mPlanes[1].mOffset = b.mPlanes[1].mSkip = 0;
b.mPlanes[2].mData = b.mPlanes[1].mData + mMetadata.frameHeight * cbcrStride / 2;
b.mPlanes[2].mStride = cbcrStride;
b.mPlanes[2].mHeight = mMetadata.frameHeight / 2;
b.mPlanes[2].mWidth = mMetadata.frameWidth / 2;
b.mPlanes[2].mOffset = b.mPlanes[2].mSkip = 0;
VideoData *v = VideoData::Create(mInfo,
mDecoder->GetImageContainer(),
-1,
currentFrameTime,
currentFrameTime + (USECS_PER_S / mFrameRate),
b,
1, // In raw video every frame is a keyframe
-1,
mPicture);
if (!v)
return false;
mVideoQueue.Push(v);
mCurrentFrame++;
decoded++;
currentFrameTime += USECS_PER_S / mFrameRate;
return true;
}
