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gecko-dev/image/decoders/nsAVIFDecoder.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 "ImageLogging.h" // Must appear first
#include "nsAVIFDecoder.h"
#include "aom/aomdx.h"
#include "DAV1DDecoder.h"
#include "gfxPlatform.h"
#include "mozilla/gfx/Types.h"
#include "YCbCrUtils.h"
#include "libyuv.h"
#include "SurfacePipeFactory.h"
#include "mozilla/Telemetry.h"
#include "mozilla/TelemetryComms.h"
using namespace mozilla::gfx;
namespace mozilla {
namespace image {
using Telemetry::LABELS_AVIF_ALPHA;
using Telemetry::LABELS_AVIF_AOM_DECODE_ERROR;
using Telemetry::LABELS_AVIF_BIT_DEPTH;
using Telemetry::LABELS_AVIF_CICP_CP;
using Telemetry::LABELS_AVIF_CICP_MC;
using Telemetry::LABELS_AVIF_CICP_TC;
using Telemetry::LABELS_AVIF_COLR;
using Telemetry::LABELS_AVIF_DECODE_RESULT;
using Telemetry::LABELS_AVIF_DECODER;
using Telemetry::LABELS_AVIF_ISPE;
using Telemetry::LABELS_AVIF_PIXI;
using Telemetry::LABELS_AVIF_YUV_COLOR_SPACE;
static LazyLogModule sAVIFLog("AVIFDecoder");
static const LABELS_AVIF_BIT_DEPTH gColorDepthLabel[] = {
LABELS_AVIF_BIT_DEPTH::color_8, LABELS_AVIF_BIT_DEPTH::color_10,
LABELS_AVIF_BIT_DEPTH::color_12, LABELS_AVIF_BIT_DEPTH::color_16};
static const LABELS_AVIF_YUV_COLOR_SPACE gColorSpaceLabel[] = {
LABELS_AVIF_YUV_COLOR_SPACE::BT601, LABELS_AVIF_YUV_COLOR_SPACE::BT709,
LABELS_AVIF_YUV_COLOR_SPACE::BT2020, LABELS_AVIF_YUV_COLOR_SPACE::identity};
static MaybeIntSize GetImageSize(const Mp4parseAvifImage& image) {
// Note this does not take cropping via CleanAperture (clap) into account
const struct Mp4parseImageSpatialExtents* ispe = image.spatial_extents;
// Decoder::PostSize takes int32_t, but ispe contains uint32_t
CheckedInt<int32_t> width = ispe->image_width;
CheckedInt<int32_t> height = ispe->image_height;
if (width.isValid() && height.isValid()) {
return Some(IntSize{width.value(), height.value()});
}
return Nothing();
}
// Translate the number of bits per channel into a single ColorDepth.
// Return Nothing if the number of bits per channel is not uniform.
static Maybe<uint8_t> BitsPerChannelToBitDepth(
const Mp4parseByteData& bits_per_channel) {
if (bits_per_channel.length == 0) {
return Nothing();
}
for (uintptr_t i = 1; i < bits_per_channel.length; ++i) {
if (bits_per_channel.data[i] != bits_per_channel.data[0]) {
// log mismatch
return Nothing();
}
}
return Some(bits_per_channel.data[0]);
}
static void RecordPixiTelemetry(Maybe<uint8_t>& pixiBitDepth,
uint8_t aBitstreamBitDepth,
const char* aItemName) {
if (pixiBitDepth.isNothing()) {
AccumulateCategorical(LABELS_AVIF_PIXI::absent);
} else if (pixiBitDepth == Some(aBitstreamBitDepth)) {
AccumulateCategorical(LABELS_AVIF_PIXI::valid);
} else {
MOZ_ASSERT(pixiBitDepth.isSome());
MOZ_LOG(sAVIFLog, LogLevel::Error,
("%s item pixi bit depth (%hhu) doesn't match "
"bitstream (%hhu)",
aItemName, *pixiBitDepth, aBitstreamBitDepth));
AccumulateCategorical(LABELS_AVIF_PIXI::bitstream_mismatch);
}
}
// Translate the MIAF/HEIF-based orientation transforms (imir, irot) into
// ImageLib's representation. Note that the interpretation of imir was reversed
// Between HEIF (ISO 23008-12:2017) and ISO/IEC 23008-12:2017/DAmd 2. This is
// handled by mp4parse. See mp4parse::read_imir for details.
Orientation GetImageOrientation(const Mp4parseAvifImage& image) {
// Per MIAF (ISO/IEC 23000-22:2019) § 7.3.6.7
// These properties, if used, shall be indicated to be applied in the
// following order: clean aperture first, then rotation, then mirror.
// The Orientation type does the same order, but opposite rotation direction
const Mp4parseIrot heifRot = image.image_rotation;
const Mp4parseImir* heifMir = image.image_mirror;
Angle mozRot;
Flip mozFlip;
if (!heifMir) { // No mirroring
mozFlip = Flip::Unflipped;
switch (heifRot) {
case MP4PARSE_IROT_D0:
// ⥠ UPWARDS HARPOON WITH BARB LEFT FROM BAR
mozRot = Angle::D0;
break;
case MP4PARSE_IROT_D90:
// ⥞ LEFTWARDS HARPOON WITH BARB DOWN FROM BAR
mozRot = Angle::D270;
break;
case MP4PARSE_IROT_D180:
// ⥝ DOWNWARDS HARPOON WITH BARB RIGHT FROM BAR
mozRot = Angle::D180;
break;
case MP4PARSE_IROT_D270:
// ⥛ RIGHTWARDS HARPOON WITH BARB UP FROM BAR
mozRot = Angle::D90;
break;
default:
MOZ_ASSERT_UNREACHABLE();
}
} else {
MOZ_ASSERT(heifMir);
mozFlip = Flip::Horizontal;
enum class HeifFlippedOrientation : uint8_t {
IROT_D0_IMIR_V = (MP4PARSE_IROT_D0 << 1) | MP4PARSE_IMIR_LEFT_RIGHT,
IROT_D0_IMIR_H = (MP4PARSE_IROT_D0 << 1) | MP4PARSE_IMIR_TOP_BOTTOM,
IROT_D90_IMIR_V = (MP4PARSE_IROT_D90 << 1) | MP4PARSE_IMIR_LEFT_RIGHT,
IROT_D90_IMIR_H = (MP4PARSE_IROT_D90 << 1) | MP4PARSE_IMIR_TOP_BOTTOM,
IROT_D180_IMIR_V = (MP4PARSE_IROT_D180 << 1) | MP4PARSE_IMIR_LEFT_RIGHT,
IROT_D180_IMIR_H = (MP4PARSE_IROT_D180 << 1) | MP4PARSE_IMIR_TOP_BOTTOM,
IROT_D270_IMIR_V = (MP4PARSE_IROT_D270 << 1) | MP4PARSE_IMIR_LEFT_RIGHT,
IROT_D270_IMIR_H = (MP4PARSE_IROT_D270 << 1) | MP4PARSE_IMIR_TOP_BOTTOM,
};
HeifFlippedOrientation heifO =
HeifFlippedOrientation((heifRot << 1) | *heifMir);
switch (heifO) {
case HeifFlippedOrientation::IROT_D0_IMIR_V:
case HeifFlippedOrientation::IROT_D180_IMIR_H:
// ⥜ UPWARDS HARPOON WITH BARB RIGHT FROM BAR
mozRot = Angle::D0;
break;
case HeifFlippedOrientation::IROT_D270_IMIR_V:
case HeifFlippedOrientation::IROT_D90_IMIR_H:
// ⥚ LEFTWARDS HARPOON WITH BARB UP FROM BAR
mozRot = Angle::D90;
break;
case HeifFlippedOrientation::IROT_D180_IMIR_V:
case HeifFlippedOrientation::IROT_D0_IMIR_H:
// ⥡ DOWNWARDS HARPOON WITH BARB LEFT FROM BAR
mozRot = Angle::D180;
break;
case HeifFlippedOrientation::IROT_D90_IMIR_V:
case HeifFlippedOrientation::IROT_D270_IMIR_H:
// ⥟ RIGHTWARDS HARPOON WITH BARB DOWN FROM BAR
mozRot = Angle::D270;
break;
default:
MOZ_ASSERT_UNREACHABLE();
}
}
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("GetImageOrientation: (rot%d, imir(%s)) -> (Angle%d, "
"Flip%d)",
static_cast<int>(heifRot),
heifMir ? (*heifMir == MP4PARSE_IMIR_LEFT_RIGHT ? "left-right"
: "top-bottom")
: "none",
static_cast<int>(mozRot), static_cast<int>(mozFlip)));
return Orientation{mozRot, mozFlip};
}
class AVIFParser {
public:
static Mp4parseStatus Create(const Mp4parseIo* aIo,
UniquePtr<AVIFParser>& aParserOut) {
MOZ_ASSERT(aIo);
MOZ_ASSERT(!aParserOut);
UniquePtr<AVIFParser> p(new AVIFParser(aIo));
Mp4parseStatus status = p->Init();
if (status == MP4PARSE_STATUS_OK) {
MOZ_ASSERT(p->mParser);
aParserOut = std::move(p);
}
return status;
}
~AVIFParser() {
MOZ_LOG(sAVIFLog, LogLevel::Debug, ("Destroy AVIFParser=%p", this));
}
Mp4parseAvifImage* GetImage() {
MOZ_ASSERT(mParser);
if (mAvifImage.isNothing()) {
mAvifImage.emplace();
Mp4parseStatus status =
mp4parse_avif_get_image(mParser.get(), mAvifImage.ptr());
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] mp4parse_avif_get_image -> %d; primary_item length: "
"%zu, alpha_item length: %zu",
this, status, mAvifImage->primary_image.coded_data.length,
mAvifImage->alpha_image.coded_data.length));
if (status != MP4PARSE_STATUS_OK) {
mAvifImage.reset();
return nullptr;
}
}
return mAvifImage.ptr();
}
private:
explicit AVIFParser(const Mp4parseIo* aIo) : mIo(aIo) {
MOZ_ASSERT(mIo);
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("Create AVIFParser=%p, image.avif.compliance_strictness: %d", this,
StaticPrefs::image_avif_compliance_strictness()));
}
Mp4parseStatus Init() {
MOZ_ASSERT(!mParser);
Mp4parseAvifParser* parser = nullptr;
Mp4parseStatus status =
mp4parse_avif_new(mIo,
static_cast<enum Mp4parseStrictness>(
StaticPrefs::image_avif_compliance_strictness()),
&parser);
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] mp4parse_avif_new status: %d", this, status));
if (status == MP4PARSE_STATUS_OK) {
mParser.reset(parser);
}
return status;
}
struct FreeAvifParser {
void operator()(Mp4parseAvifParser* aPtr) { mp4parse_avif_free(aPtr); }
};
const Mp4parseIo* mIo;
UniquePtr<Mp4parseAvifParser, FreeAvifParser> mParser;
Maybe<Mp4parseAvifImage> mAvifImage;
};
// As well as Maybe<PlanarAlphaData>, add CICP values (either from the BMFF
// container or the AV1 sequence header) which are used to create the
// colorspace transform. CICP::MatrixCoefficients is only stored for the sake
// of telemetry, since the relevant information for YUV -> RGB conversion is
// stored in mYUVColorSpace.
//
// There are three potential sources of color information for an AVIF:
// 1. ICC profile via a ColourInformationBox (colr) defined in [ISOBMFF]
// § 12.1.5 "Colour information" and [MIAF] § 7.3.6.4 "Colour information
// property"
// 2. NCLX (AKA CICP see [ITU-T H.273]) values in the same ColourInformationBox
// which can have an ICC profile or NCLX values, not both).
// 3. NCLX values in the AV1 bitstream
//
// The 'colr' box is optional, but there are always CICP values in the AV1
// bitstream, so it is possible to have both. Per ISOBMFF § 12.1.5.1
// > If colour information is supplied in both this box, and also in the
// > video bitstream, this box takes precedence, and over-rides the
// > information in the bitstream.
//
// If present, the ICC profile takes precedence over CICP values, but only
// specifies the color space, not the matrix coefficients necessary to convert
// YCbCr data (as most AVIF are encoded) to RGB. The matrix coefficients are
// always derived from the CICP values for matrix_coefficients (and potentially
// colour_primaries, but in that case only the CICP values for colour_primaries
// will be used, not anything harvested from the ICC profile).
//
// If there is no ICC profile, the color space transform will be based on the
// CICP values either from the 'colr' box, or if absent/unspecified, the
// decoded AV1 sequence header.
//
// For values that are 2 (meaning unspecified) after trying both, the
// fallback values are:
// - CP: 1 (BT.709/sRGB)
// - TC: 13 (sRGB)
// - MC: 6 (BT.601)
// - Range: Full
//
// Additional details here:
// <https://github.com/AOMediaCodec/libavif/wiki/CICP#unspecified>. Note
// that this contradicts the current version of [MIAF] § 7.3.6.4 which
// specifies MC=1 (BT.709). This is revised in [MIAF DAMD2] and confirmed by
// <https://github.com/AOMediaCodec/av1-avif/issues/77#issuecomment-676526097>
//
// The precedence for applying the various values and defaults in the event
// no valid values are found are managed by the following functions.
//
// References:
// [ISOBMFF]: ISO/IEC 14496-12:2020 <https://www.iso.org/standard/74428.html>
// [MIAF]: ISO/IEC 23000-22:2019 <https://www.iso.org/standard/74417.html>
// [MIAF DAMD2]: ISO/IEC 23000-22:2019/FDAmd 2
// <https://www.iso.org/standard/81634.html>
// [ITU-T H.273]: Rec. ITU-T H.273 (12/2016)
// <https://www.itu.int/rec/T-REC-H.273-201612-I/en>
struct AVIFDecodedData : layers::PlanarYCbCrData {
Maybe<layers::PlanarAlphaData> mAlpha = Nothing();
CICP::ColourPrimaries mColourPrimaries = CICP::CP_UNSPECIFIED;
CICP::TransferCharacteristics mTransferCharacteristics = CICP::TC_UNSPECIFIED;
CICP::MatrixCoefficients mMatrixCoefficients = CICP::MC_UNSPECIFIED;
void SetCicpValues(
const NclxColourInformation* aNclx,
const CICP::ColourPrimaries aAv1ColourPrimaries,
const CICP::TransferCharacteristics aAv1TransferCharacteristics,
const CICP::MatrixCoefficients aAv1MatrixCoefficients);
};
// The gfx::YUVColorSpace value is only used in the conversion from YUV -> RGB.
// Typically this comes directly from the CICP matrix_coefficients value, but
// certain values require additionally considering the colour_primaries value.
// See `gfxUtils::CicpToColorSpace` for details. We return a gfx::YUVColorSpace
// rather than CICP::MatrixCoefficients, since that's what
// `gfx::ConvertYCbCrATo[A]RGB` uses. `aBitstreamColorSpaceFunc` abstracts the
// fact that different decoder libraries require different methods for
// extracting the CICP values from the AV1 bitstream and we don't want to do
// that work unnecessarily because in addition to wasted effort, it would make
// the logging more confusing.
template <typename F>
static gfx::YUVColorSpace GetAVIFColorSpace(const NclxColourInformation* aNclx,
F&& aBitstreamColorSpaceFunc) {
return ToMaybe(aNclx)
.map([=](const auto& nclx) {
return gfxUtils::CicpToColorSpace(
static_cast<CICP::MatrixCoefficients>(nclx.matrix_coefficients),
static_cast<CICP::ColourPrimaries>(nclx.colour_primaries),
sAVIFLog);
})
.valueOrFrom(aBitstreamColorSpaceFunc)
.valueOr(gfx::YUVColorSpace::BT601);
}
static gfx::ColorRange GetAVIFColorRange(const NclxColourInformation* aNclx,
const gfx::ColorRange av1ColorRange) {
return ToMaybe(aNclx)
.map([=](const auto& nclx) {
return aNclx->full_range_flag ? gfx::ColorRange::FULL
: gfx::ColorRange::LIMITED;
})
.valueOr(av1ColorRange);
}
void AVIFDecodedData::SetCicpValues(
const NclxColourInformation* aNclx,
const CICP::ColourPrimaries aAv1ColourPrimaries,
const CICP::TransferCharacteristics aAv1TransferCharacteristics,
const CICP::MatrixCoefficients aAv1MatrixCoefficients) {
auto cp = CICP::ColourPrimaries::CP_UNSPECIFIED;
auto tc = CICP::TransferCharacteristics::TC_UNSPECIFIED;
auto mc = CICP::MatrixCoefficients::MC_UNSPECIFIED;
if (aNclx) {
cp = static_cast<CICP::ColourPrimaries>(aNclx->colour_primaries);
tc = static_cast<CICP::TransferCharacteristics>(
aNclx->transfer_characteristics);
mc = static_cast<CICP::MatrixCoefficients>(aNclx->matrix_coefficients);
}
if (cp == CICP::ColourPrimaries::CP_UNSPECIFIED) {
if (aAv1ColourPrimaries != CICP::ColourPrimaries::CP_UNSPECIFIED) {
cp = aAv1ColourPrimaries;
MOZ_LOG(sAVIFLog, LogLevel::Info,
("Unspecified colour_primaries value specified in colr box, "
"using AV1 sequence header (%hhu)",
cp));
} else {
cp = CICP::ColourPrimaries::CP_BT709;
MOZ_LOG(sAVIFLog, LogLevel::Warning,
("Unspecified colour_primaries value specified in colr box "
"or AV1 sequence header, using fallback value (%hhu)",
cp));
}
} else if (cp != aAv1ColourPrimaries) {
MOZ_LOG(sAVIFLog, LogLevel::Warning,
("colour_primaries mismatch: colr box = %hhu, AV1 "
"sequence header = %hhu, using colr box",
cp, aAv1ColourPrimaries));
}
if (tc == CICP::TransferCharacteristics::TC_UNSPECIFIED) {
if (aAv1TransferCharacteristics !=
CICP::TransferCharacteristics::TC_UNSPECIFIED) {
tc = aAv1TransferCharacteristics;
MOZ_LOG(sAVIFLog, LogLevel::Info,
("Unspecified transfer_characteristics value specified in "
"colr box, using AV1 sequence header (%hhu)",
tc));
} else {
tc = CICP::TransferCharacteristics::TC_SRGB;
MOZ_LOG(sAVIFLog, LogLevel::Warning,
("Unspecified transfer_characteristics value specified in "
"colr box or AV1 sequence header, using fallback value (%hhu)",
tc));
}
} else if (tc != aAv1TransferCharacteristics) {
MOZ_LOG(sAVIFLog, LogLevel::Warning,
("transfer_characteristics mismatch: colr box = %hhu, "
"AV1 sequence header = %hhu, using colr box",
tc, aAv1TransferCharacteristics));
}
if (mc == CICP::MatrixCoefficients::MC_UNSPECIFIED) {
if (aAv1MatrixCoefficients != CICP::MatrixCoefficients::MC_UNSPECIFIED) {
mc = aAv1MatrixCoefficients;
MOZ_LOG(sAVIFLog, LogLevel::Info,
("Unspecified matrix_coefficients value specified in "
"colr box, using AV1 sequence header (%hhu)",
mc));
} else {
mc = CICP::MatrixCoefficients::MC_BT601;
MOZ_LOG(sAVIFLog, LogLevel::Warning,
("Unspecified matrix_coefficients value specified in "
"colr box or AV1 sequence header, using fallback value (%hhu)",
mc));
}
} else if (mc != aAv1MatrixCoefficients) {
MOZ_LOG(sAVIFLog, LogLevel::Warning,
("matrix_coefficients mismatch: colr box = %hhu, "
"AV1 sequence header = %hhu, using colr box",
mc, aAv1TransferCharacteristics));
}
mColourPrimaries = cp;
mTransferCharacteristics = tc;
mMatrixCoefficients = mc;
}
// An interface to do decode and get the decoded data
class AVIFDecoderInterface {
public:
using Dav1dResult = nsAVIFDecoder::Dav1dResult;
using NonAOMCodecError = nsAVIFDecoder::NonAOMCodecError;
using AOMResult = nsAVIFDecoder::AOMResult;
using NonDecoderResult = nsAVIFDecoder::NonDecoderResult;
using DecodeResult = nsAVIFDecoder::DecodeResult;
virtual ~AVIFDecoderInterface() = default;
// Set the mDecodedData if Decode() succeeds
virtual DecodeResult Decode(bool aIsMetadataDecode,
const Mp4parseAvifImage& parsedImg) = 0;
// Must be called after Decode() succeeds
AVIFDecodedData& GetDecodedData() {
MOZ_ASSERT(mDecodedData.isSome());
return mDecodedData.ref();
}
protected:
explicit AVIFDecoderInterface(UniquePtr<AVIFParser>&& aParser)
: mParser(std::move(aParser)) {
MOZ_ASSERT(mParser);
}
inline static bool IsDecodeSuccess(const DecodeResult& aResult) {
return nsAVIFDecoder::IsDecodeSuccess(aResult);
}
UniquePtr<AVIFParser> mParser;
// The mDecodedData is valid after Decode() succeeds
Maybe<AVIFDecodedData> mDecodedData;
};
class Dav1dDecoder final : AVIFDecoderInterface {
public:
~Dav1dDecoder() {
MOZ_LOG(sAVIFLog, LogLevel::Verbose, ("Destroy Dav1dDecoder=%p", this));
if (mPicture) {
dav1d_picture_unref(mPicture.take().ptr());
}
if (mAlphaPlane) {
dav1d_picture_unref(mAlphaPlane.take().ptr());
}
if (mContext) {
dav1d_close(&mContext);
MOZ_ASSERT(!mContext);
}
}
static DecodeResult Create(UniquePtr<AVIFParser>&& aParser,
UniquePtr<AVIFDecoderInterface>& aDecoder) {
UniquePtr<Dav1dDecoder> d(new Dav1dDecoder(std::move(aParser)));
Dav1dResult r = d->Init();
if (r == 0) {
MOZ_ASSERT(d->mContext);
aDecoder.reset(d.release());
}
return AsVariant(r);
}
DecodeResult Decode(bool aIsMetadataDecode,
const Mp4parseAvifImage& parsedImg) override {
MOZ_ASSERT(mParser);
MOZ_ASSERT(mContext);
MOZ_ASSERT(mPicture.isNothing());
MOZ_ASSERT(mDecodedData.isNothing());
MOZ_LOG(sAVIFLog, LogLevel::Verbose, ("[this=%p] Beginning Decode", this));
if (!parsedImg.primary_image.coded_data.data ||
!parsedImg.primary_image.coded_data.length) {
return AsVariant(NonDecoderResult::NoPrimaryItem);
}
mPicture.emplace();
Dav1dResult r = GetPicture(parsedImg.primary_image.coded_data,
mPicture.ptr(), aIsMetadataDecode);
if (r != 0) {
mPicture.reset();
return AsVariant(r);
}
if (parsedImg.alpha_image.coded_data.data &&
parsedImg.alpha_image.coded_data.length) {
mAlphaPlane.emplace();
Dav1dResult r = GetPicture(parsedImg.alpha_image.coded_data,
mAlphaPlane.ptr(), aIsMetadataDecode);
if (r != 0) {
mAlphaPlane.reset();
return AsVariant(r);
}
// Per § 4 of the AVIF spec
// https://aomediacodec.github.io/av1-avif/#auxiliary-images: An AV1
// Alpha Image Item […] shall be encoded with the same bit depth as the
// associated master AV1 Image Item
if (mPicture->p.bpc != mAlphaPlane->p.bpc) {
return AsVariant(NonDecoderResult::AlphaYColorDepthMismatch);
}
}
MOZ_ASSERT_IF(mAlphaPlane.isNothing(), !parsedImg.premultiplied_alpha);
mDecodedData.emplace(Dav1dPictureToDecodedData(
parsedImg.nclx_colour_information, mPicture.ptr(),
mAlphaPlane.ptrOr(nullptr), parsedImg.premultiplied_alpha));
return AsVariant(r);
}
private:
explicit Dav1dDecoder(UniquePtr<AVIFParser>&& aParser)
: AVIFDecoderInterface(std::move(aParser)) {
MOZ_LOG(sAVIFLog, LogLevel::Verbose, ("Create Dav1dDecoder=%p", this));
}
Dav1dResult Init() {
MOZ_ASSERT(!mContext);
Dav1dSettings settings;
dav1d_default_settings(&settings);
settings.all_layers = 0;
// TODO: tune settings a la DAV1DDecoder for AV1 (Bug 1681816)
return dav1d_open(&mContext, &settings);
}
Dav1dResult GetPicture(const Mp4parseByteData& aBytes, Dav1dPicture* aPicture,
bool aIsMetadataDecode) {
MOZ_ASSERT(mContext);
MOZ_ASSERT(aPicture);
Dav1dData dav1dData;
Dav1dResult r = dav1d_data_wrap(&dav1dData, aBytes.data, aBytes.length,
Dav1dFreeCallback_s, nullptr);
MOZ_LOG(sAVIFLog, r == 0 ? LogLevel::Verbose : LogLevel::Error,
("[this=%p] dav1d_data_wrap(%p, %zu) -> %d", this, dav1dData.data,
dav1dData.sz, r));
if (r != 0) {
return r;
}
r = dav1d_send_data(mContext, &dav1dData);
MOZ_LOG(sAVIFLog, r == 0 ? LogLevel::Debug : LogLevel::Error,
("[this=%p] dav1d_send_data -> %d", this, r));
if (r != 0) {
return r;
}
r = dav1d_get_picture(mContext, aPicture);
MOZ_LOG(sAVIFLog, r == 0 ? LogLevel::Debug : LogLevel::Error,
("[this=%p] dav1d_get_picture -> %d", this, r));
// When bug 1682662 is fixed, revise this assert and subsequent condition
MOZ_ASSERT(aIsMetadataDecode || r == 0);
// We already have the AVIF_DECODE_RESULT histogram to record all the
// successful calls, so only bother recording what type of errors we see
// via events. Unlike AOM, dav1d returns an int, not an enum, so this is
// the easiest way to see if we're getting unexpected behavior to
// investigate.
if (aIsMetadataDecode && r != 0) {
// Uncomment once bug 1691156 is fixed
// mozilla::Telemetry::SetEventRecordingEnabled("avif"_ns, true);
mozilla::Telemetry::RecordEvent(
mozilla::Telemetry::EventID::Avif_Dav1dGetPicture_ReturnValue,
Some(nsPrintfCString("%d", r)), Nothing());
}
return r;
}
// A dummy callback for dav1d_data_wrap
static void Dav1dFreeCallback_s(const uint8_t* aBuf, void* aCookie) {
// The buf is managed by the mParser inside Dav1dDecoder itself. Do
// nothing here.
}
static AVIFDecodedData Dav1dPictureToDecodedData(
const NclxColourInformation* aNclx, Dav1dPicture* aPicture,
Dav1dPicture* aAlphaPlane, bool aPremultipliedAlpha);
Dav1dContext* mContext = nullptr;
// The pictures are allocated once Decode() succeeds and will be deallocated
// when Dav1dDecoder is destroyed
Maybe<Dav1dPicture> mPicture;
Maybe<Dav1dPicture> mAlphaPlane;
};
class AOMDecoder final : AVIFDecoderInterface {
public:
~AOMDecoder() {
MOZ_LOG(sAVIFLog, LogLevel::Verbose, ("Destroy AOMDecoder=%p", this));
if (mContext.isSome()) {
aom_codec_err_t r = aom_codec_destroy(mContext.ptr());
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] aom_codec_destroy -> %d", this, r));
}
}
static DecodeResult Create(UniquePtr<AVIFParser>&& aParser,
UniquePtr<AVIFDecoderInterface>& aDecoder) {
UniquePtr<AOMDecoder> d(new AOMDecoder(std::move(aParser)));
aom_codec_err_t e = d->Init();
if (e == AOM_CODEC_OK) {
MOZ_ASSERT(d->mContext);
aDecoder.reset(d.release());
}
return AsVariant(AOMResult(e));
}
DecodeResult Decode(bool aIsMetadataDecode,
const Mp4parseAvifImage& parsedImg) override {
MOZ_ASSERT(mParser);
MOZ_ASSERT(mContext.isSome());
MOZ_ASSERT(mDecodedData.isNothing());
if (!parsedImg.primary_image.coded_data.data ||
!parsedImg.primary_image.coded_data.length) {
return AsVariant(NonDecoderResult::NoPrimaryItem);
}
aom_image_t* aomImg = nullptr;
DecodeResult r = GetImage(parsedImg.primary_image.coded_data, &aomImg,
aIsMetadataDecode);
if (!IsDecodeSuccess(r)) {
return r;
}
MOZ_ASSERT(aomImg);
// The aomImg will be released in next GetImage call (aom_codec_decode
// actually). The GetImage could be called again immediately if parsedImg
// contains alpha data. Therefore, we need to copy the image and manage it
// by AOMDecoder itself.
OwnedAOMImage* clonedImg = OwnedAOMImage::CopyFrom(aomImg, false);
if (!clonedImg) {
return AsVariant(NonDecoderResult::OutOfMemory);
}
mOwnedImage.reset(clonedImg);
if (parsedImg.alpha_image.coded_data.data &&
parsedImg.alpha_image.coded_data.length) {
aom_image_t* alphaImg = nullptr;
DecodeResult r = GetImage(parsedImg.alpha_image.coded_data, &alphaImg,
aIsMetadataDecode);
if (!IsDecodeSuccess(r)) {
return r;
}
MOZ_ASSERT(alphaImg);
OwnedAOMImage* clonedAlphaImg = OwnedAOMImage::CopyFrom(alphaImg, true);
if (!clonedAlphaImg) {
return AsVariant(NonDecoderResult::OutOfMemory);
}
mOwnedAlphaPlane.reset(clonedAlphaImg);
// Per § 4 of the AVIF spec
// https://aomediacodec.github.io/av1-avif/#auxiliary-images: An AV1
// Alpha Image Item […] shall be encoded with the same bit depth as the
// associated master AV1 Image Item
MOZ_ASSERT(mOwnedImage->GetImage() && mOwnedAlphaPlane->GetImage());
if (mOwnedImage->GetImage()->bit_depth !=
mOwnedAlphaPlane->GetImage()->bit_depth) {
return AsVariant(NonDecoderResult::AlphaYColorDepthMismatch);
}
}
MOZ_ASSERT_IF(!mOwnedAlphaPlane, !parsedImg.premultiplied_alpha);
mDecodedData.emplace(AOMImageToToDecodedData(
parsedImg.nclx_colour_information, mOwnedImage->GetImage(),
mOwnedAlphaPlane ? mOwnedAlphaPlane->GetImage() : nullptr,
parsedImg.premultiplied_alpha));
return r;
}
private:
explicit AOMDecoder(UniquePtr<AVIFParser>&& aParser)
: AVIFDecoderInterface(std::move(aParser)) {
MOZ_LOG(sAVIFLog, LogLevel::Verbose, ("Create AOMDecoder=%p", this));
}
aom_codec_err_t Init() {
MOZ_ASSERT(mContext.isNothing());
aom_codec_iface_t* iface = aom_codec_av1_dx();
mContext.emplace();
aom_codec_err_t r = aom_codec_dec_init(
mContext.ptr(), iface, /* cfg = */ nullptr, /* flags = */ 0);
MOZ_LOG(sAVIFLog, r == AOM_CODEC_OK ? LogLevel::Verbose : LogLevel::Error,
("[this=%p] aom_codec_dec_init -> %d, name = %s", this, r,
mContext->name));
if (r != AOM_CODEC_OK) {
mContext.reset();
}
return r;
}
DecodeResult GetImage(const Mp4parseByteData& aData, aom_image_t** aImage,
bool aIsMetadataDecode) {
MOZ_ASSERT(mContext.isSome());
aom_codec_err_t r =
aom_codec_decode(mContext.ptr(), aData.data, aData.length, nullptr);
MOZ_LOG(sAVIFLog, r == AOM_CODEC_OK ? LogLevel::Verbose : LogLevel::Error,
("[this=%p] aom_codec_decode -> %d", this, r));
if (aIsMetadataDecode) {
switch (r) {
case AOM_CODEC_OK:
// No need to record any telemetry for the common case
break;
case AOM_CODEC_ERROR:
AccumulateCategorical(LABELS_AVIF_AOM_DECODE_ERROR::error);
break;
case AOM_CODEC_MEM_ERROR:
AccumulateCategorical(LABELS_AVIF_AOM_DECODE_ERROR::mem_error);
break;
case AOM_CODEC_ABI_MISMATCH:
AccumulateCategorical(LABELS_AVIF_AOM_DECODE_ERROR::abi_mismatch);
break;
case AOM_CODEC_INCAPABLE:
AccumulateCategorical(LABELS_AVIF_AOM_DECODE_ERROR::incapable);
break;
case AOM_CODEC_UNSUP_BITSTREAM:
AccumulateCategorical(LABELS_AVIF_AOM_DECODE_ERROR::unsup_bitstream);
break;
case AOM_CODEC_UNSUP_FEATURE:
AccumulateCategorical(LABELS_AVIF_AOM_DECODE_ERROR::unsup_feature);
break;
case AOM_CODEC_CORRUPT_FRAME:
AccumulateCategorical(LABELS_AVIF_AOM_DECODE_ERROR::corrupt_frame);
break;
case AOM_CODEC_INVALID_PARAM:
AccumulateCategorical(LABELS_AVIF_AOM_DECODE_ERROR::invalid_param);
break;
default:
MOZ_ASSERT_UNREACHABLE(
"Unknown aom_codec_err_t value from aom_codec_decode");
}
}
if (r != AOM_CODEC_OK) {
return AsVariant(AOMResult(r));
}
aom_codec_iter_t iter = nullptr;
aom_image_t* img = aom_codec_get_frame(mContext.ptr(), &iter);
MOZ_LOG(sAVIFLog, img == nullptr ? LogLevel::Error : LogLevel::Verbose,
("[this=%p] aom_codec_get_frame -> %p", this, img));
if (img == nullptr) {
return AsVariant(AOMResult(NonAOMCodecError::NoFrame));
}
const CheckedInt<int> decoded_width = img->d_w;
const CheckedInt<int> decoded_height = img->d_h;
if (!decoded_height.isValid() || !decoded_width.isValid()) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] image dimensions can't be stored in int: d_w: %u, "
"d_h: %u",
this, img->d_w, img->d_h));
return AsVariant(AOMResult(NonAOMCodecError::SizeOverflow));
}
*aImage = img;
return AsVariant(AOMResult(r));
}
class OwnedAOMImage {
public:
~OwnedAOMImage() {
MOZ_LOG(sAVIFLog, LogLevel::Verbose, ("Destroy OwnedAOMImage=%p", this));
};
static OwnedAOMImage* CopyFrom(aom_image_t* aImage, bool aIsAlpha) {
MOZ_ASSERT(aImage);
UniquePtr<OwnedAOMImage> img(new OwnedAOMImage());
if (!img->CloneFrom(aImage, aIsAlpha)) {
return nullptr;
}
return img.release();
}
aom_image_t* GetImage() { return mImage.isSome() ? mImage.ptr() : nullptr; }
private:
OwnedAOMImage() {
MOZ_LOG(sAVIFLog, LogLevel::Verbose, ("Create OwnedAOMImage=%p", this));
};
bool CloneFrom(aom_image_t* aImage, bool aIsAlpha) {
MOZ_ASSERT(aImage);
MOZ_ASSERT(!mImage);
MOZ_ASSERT(!mBuffer);
uint8_t* srcY = aImage->planes[AOM_PLANE_Y];
int yStride = aImage->stride[AOM_PLANE_Y];
int yHeight = aom_img_plane_height(aImage, AOM_PLANE_Y);
size_t yBufSize = yStride * yHeight;
// If aImage is alpha plane. The data is located in Y channel.
if (aIsAlpha) {
mBuffer = MakeUnique<uint8_t[]>(yBufSize);
if (!mBuffer) {
return false;
}
uint8_t* destY = mBuffer.get();
memcpy(destY, srcY, yBufSize);
mImage.emplace(*aImage);
mImage->planes[AOM_PLANE_Y] = destY;
return true;
}
uint8_t* srcCb = aImage->planes[AOM_PLANE_U];
int cbStride = aImage->stride[AOM_PLANE_U];
int cbHeight = aom_img_plane_height(aImage, AOM_PLANE_U);
size_t cbBufSize = cbStride * cbHeight;
uint8_t* srcCr = aImage->planes[AOM_PLANE_V];
int crStride = aImage->stride[AOM_PLANE_V];
int crHeight = aom_img_plane_height(aImage, AOM_PLANE_V);
size_t crBufSize = crStride * crHeight;
mBuffer = MakeUnique<uint8_t[]>(yBufSize + cbBufSize + crBufSize);
if (!mBuffer) {
return false;
}
uint8_t* destY = mBuffer.get();
uint8_t* destCb = destY + yBufSize;
uint8_t* destCr = destCb + cbBufSize;
memcpy(destY, srcY, yBufSize);
memcpy(destCb, srcCb, cbBufSize);
memcpy(destCr, srcCr, crBufSize);
mImage.emplace(*aImage);
mImage->planes[AOM_PLANE_Y] = destY;
mImage->planes[AOM_PLANE_U] = destCb;
mImage->planes[AOM_PLANE_V] = destCr;
return true;
}
// The mImage's planes are referenced to mBuffer
Maybe<aom_image_t> mImage;
UniquePtr<uint8_t[]> mBuffer;
};
static AVIFDecodedData AOMImageToToDecodedData(
const NclxColourInformation* aNclx, aom_image_t* aImage,
aom_image_t* aAlphaPlane, bool aPremultipliedAlpha);
Maybe<aom_codec_ctx_t> mContext;
UniquePtr<OwnedAOMImage> mOwnedImage;
UniquePtr<OwnedAOMImage> mOwnedAlphaPlane;
};
/* static */
AVIFDecodedData Dav1dDecoder::Dav1dPictureToDecodedData(
const NclxColourInformation* aNclx, Dav1dPicture* aPicture,
Dav1dPicture* aAlphaPlane, bool aPremultipliedAlpha) {
MOZ_ASSERT(aPicture);
static_assert(std::is_same<int, decltype(aPicture->p.w)>::value);
static_assert(std::is_same<int, decltype(aPicture->p.h)>::value);
AVIFDecodedData data;
data.mYChannel = static_cast<uint8_t*>(aPicture->data[0]);
data.mYStride = aPicture->stride[0];
data.mYSize = gfx::IntSize(aPicture->p.w, aPicture->p.h);
data.mYSkip = aPicture->stride[0] - aPicture->p.w;
data.mCbChannel = static_cast<uint8_t*>(aPicture->data[1]);
data.mCrChannel = static_cast<uint8_t*>(aPicture->data[2]);
data.mCbCrStride = aPicture->stride[1];
switch (aPicture->p.layout) {
case DAV1D_PIXEL_LAYOUT_I400: // Monochrome, so no Cb or Cr channels
data.mCbCrSize = gfx::IntSize(0, 0);
break;
case DAV1D_PIXEL_LAYOUT_I420:
data.mCbCrSize =
gfx::IntSize((aPicture->p.w + 1) / 2, (aPicture->p.h + 1) / 2);
break;
case DAV1D_PIXEL_LAYOUT_I422:
data.mCbCrSize = gfx::IntSize((aPicture->p.w + 1) / 2, aPicture->p.h);
break;
case DAV1D_PIXEL_LAYOUT_I444:
data.mCbCrSize = gfx::IntSize(aPicture->p.w, aPicture->p.h);
break;
default:
MOZ_ASSERT_UNREACHABLE("Unknown pixel layout");
}
data.mCbSkip = aPicture->stride[1] - aPicture->p.w;
data.mCrSkip = aPicture->stride[1] - aPicture->p.w;
data.mPicX = 0;
data.mPicY = 0;
data.mPicSize = data.mYSize;
data.mStereoMode = StereoMode::MONO;
data.mColorDepth = ColorDepthForBitDepth(aPicture->p.bpc);
MOZ_ASSERT(aPicture->p.bpc == BitDepthForColorDepth(data.mColorDepth));
data.mYUVColorSpace = GetAVIFColorSpace(aNclx, [=]() {
MOZ_LOG(sAVIFLog, LogLevel::Info,
("YUVColorSpace cannot be determined from colr box, using AV1 "
"sequence header"));
return DAV1DDecoder::GetColorSpace(*aPicture, sAVIFLog);
});
auto av1ColourPrimaries = CICP::ColourPrimaries::CP_UNSPECIFIED;
auto av1TransferCharacteristics =
CICP::TransferCharacteristics::TC_UNSPECIFIED;
auto av1MatrixCoefficients = CICP::MatrixCoefficients::MC_UNSPECIFIED;
MOZ_ASSERT(aPicture->seq_hdr);
auto& seq_hdr = *aPicture->seq_hdr;
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("seq_hdr.color_description_present: %d",
seq_hdr.color_description_present));
if (seq_hdr.color_description_present) {
av1ColourPrimaries = static_cast<CICP::ColourPrimaries>(seq_hdr.pri);
av1TransferCharacteristics =
static_cast<CICP::TransferCharacteristics>(seq_hdr.trc);
av1MatrixCoefficients = static_cast<CICP::MatrixCoefficients>(seq_hdr.mtrx);
}
data.SetCicpValues(aNclx, av1ColourPrimaries, av1TransferCharacteristics,
av1MatrixCoefficients);
gfx::ColorRange av1ColorRange =
seq_hdr.color_range ? gfx::ColorRange::FULL : gfx::ColorRange::LIMITED;
data.mColorRange = GetAVIFColorRange(aNclx, av1ColorRange);
if (aAlphaPlane) {
MOZ_ASSERT(aAlphaPlane->stride[0] == data.mYStride);
data.mAlpha.emplace();
data.mAlpha->mChannel = static_cast<uint8_t*>(aAlphaPlane->data[0]);
data.mAlpha->mSize = gfx::IntSize(aAlphaPlane->p.w, aAlphaPlane->p.h);
data.mAlpha->mPremultiplied = aPremultipliedAlpha;
}
return data;
}
/* static */
AVIFDecodedData AOMDecoder::AOMImageToToDecodedData(
const NclxColourInformation* aNclx, aom_image_t* aImage,
aom_image_t* aAlphaPlane, bool aPremultipliedAlpha) {
MOZ_ASSERT(aImage);
MOZ_ASSERT(aImage->stride[AOM_PLANE_Y] == aImage->stride[AOM_PLANE_ALPHA]);
MOZ_ASSERT(aImage->stride[AOM_PLANE_Y] >=
aom_img_plane_width(aImage, AOM_PLANE_Y));
MOZ_ASSERT(aImage->stride[AOM_PLANE_U] == aImage->stride[AOM_PLANE_V]);
MOZ_ASSERT(aImage->stride[AOM_PLANE_U] >=
aom_img_plane_width(aImage, AOM_PLANE_U));
MOZ_ASSERT(aImage->stride[AOM_PLANE_V] >=
aom_img_plane_width(aImage, AOM_PLANE_V));
MOZ_ASSERT(aom_img_plane_width(aImage, AOM_PLANE_U) ==
aom_img_plane_width(aImage, AOM_PLANE_V));
MOZ_ASSERT(aom_img_plane_height(aImage, AOM_PLANE_U) ==
aom_img_plane_height(aImage, AOM_PLANE_V));
AVIFDecodedData data;
data.mYChannel = aImage->planes[AOM_PLANE_Y];
data.mYStride = aImage->stride[AOM_PLANE_Y];
data.mYSize = gfx::IntSize(aom_img_plane_width(aImage, AOM_PLANE_Y),
aom_img_plane_height(aImage, AOM_PLANE_Y));
data.mYSkip =
aImage->stride[AOM_PLANE_Y] - aom_img_plane_width(aImage, AOM_PLANE_Y);
data.mCbChannel = aImage->planes[AOM_PLANE_U];
data.mCrChannel = aImage->planes[AOM_PLANE_V];
data.mCbCrStride = aImage->stride[AOM_PLANE_U];
data.mCbCrSize = gfx::IntSize(aom_img_plane_width(aImage, AOM_PLANE_U),
aom_img_plane_height(aImage, AOM_PLANE_U));
data.mCbSkip =
aImage->stride[AOM_PLANE_U] - aom_img_plane_width(aImage, AOM_PLANE_U);
data.mCrSkip =
aImage->stride[AOM_PLANE_V] - aom_img_plane_width(aImage, AOM_PLANE_V);
data.mPicX = 0;
data.mPicY = 0;
data.mPicSize = gfx::IntSize(aImage->d_w, aImage->d_h);
data.mStereoMode = StereoMode::MONO;
data.mColorDepth = ColorDepthForBitDepth(aImage->bit_depth);
MOZ_ASSERT(aImage->bit_depth == BitDepthForColorDepth(data.mColorDepth));
auto av1ColourPrimaries = static_cast<CICP::ColourPrimaries>(aImage->cp);
auto av1TransferCharacteristics =
static_cast<CICP::TransferCharacteristics>(aImage->tc);
auto av1MatrixCoefficients =
static_cast<CICP::MatrixCoefficients>(aImage->mc);
data.mYUVColorSpace = GetAVIFColorSpace(aNclx, [=]() {
MOZ_LOG(sAVIFLog, LogLevel::Info,
("YUVColorSpace cannot be determined from colr box, using AV1 "
"sequence header"));
return gfxUtils::CicpToColorSpace(av1MatrixCoefficients, av1ColourPrimaries,
sAVIFLog);
});
gfx::ColorRange av1ColorRange;
if (aImage->range == AOM_CR_STUDIO_RANGE) {
av1ColorRange = gfx::ColorRange::LIMITED;
} else {
MOZ_ASSERT(aImage->range == AOM_CR_FULL_RANGE);
av1ColorRange = gfx::ColorRange::FULL;
}
data.mColorRange = GetAVIFColorRange(aNclx, av1ColorRange);
data.SetCicpValues(aNclx, av1ColourPrimaries, av1TransferCharacteristics,
av1MatrixCoefficients);
if (aAlphaPlane) {
MOZ_ASSERT(aAlphaPlane->stride[AOM_PLANE_Y] == data.mYStride);
data.mAlpha.emplace();
data.mAlpha->mChannel = aAlphaPlane->planes[AOM_PLANE_Y];
data.mAlpha->mSize = gfx::IntSize(aAlphaPlane->d_w, aAlphaPlane->d_h);
data.mAlpha->mPremultiplied = aPremultipliedAlpha;
}
return data;
}
// Wrapper to allow rust to call our read adaptor.
intptr_t nsAVIFDecoder::ReadSource(uint8_t* aDestBuf, uintptr_t aDestBufSize,
void* aUserData) {
MOZ_ASSERT(aDestBuf);
MOZ_ASSERT(aUserData);
MOZ_LOG(sAVIFLog, LogLevel::Verbose,
("AVIF ReadSource, aDestBufSize: %zu", aDestBufSize));
auto* decoder = reinterpret_cast<nsAVIFDecoder*>(aUserData);
MOZ_ASSERT(decoder->mReadCursor);
size_t bufferLength = decoder->mBufferedData.end() - decoder->mReadCursor;
size_t n_bytes = std::min(aDestBufSize, bufferLength);
MOZ_LOG(
sAVIFLog, LogLevel::Verbose,
("AVIF ReadSource, %zu bytes ready, copying %zu", bufferLength, n_bytes));
memcpy(aDestBuf, decoder->mReadCursor, n_bytes);
decoder->mReadCursor += n_bytes;
return n_bytes;
}
nsAVIFDecoder::nsAVIFDecoder(RasterImage* aImage) : Decoder(aImage) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] nsAVIFDecoder::nsAVIFDecoder", this));
}
nsAVIFDecoder::~nsAVIFDecoder() {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] nsAVIFDecoder::~nsAVIFDecoder", this));
}
LexerResult nsAVIFDecoder::DoDecode(SourceBufferIterator& aIterator,
IResumable* aOnResume) {
MOZ_LOG(sAVIFLog, LogLevel::Info,
("[this=%p] nsAVIFDecoder::DoDecode start", this));
DecodeResult result = Decode(aIterator, aOnResume);
RecordDecodeResultTelemetry(result);
if (result.is<NonDecoderResult>()) {
NonDecoderResult r = result.as<NonDecoderResult>();
if (r == NonDecoderResult::NeedMoreData) {
return LexerResult(Yield::NEED_MORE_DATA);
}
return r == NonDecoderResult::MetadataOk
? LexerResult(TerminalState::SUCCESS)
: LexerResult(TerminalState::FAILURE);
}
MOZ_ASSERT(result.is<Dav1dResult>() || result.is<AOMResult>() ||
result.is<Mp4parseStatus>());
// If IsMetadataDecode(), a successful parse should return
// NonDecoderResult::MetadataOk or else continue to the decode stage
MOZ_ASSERT_IF(result.is<Mp4parseStatus>(),
result.as<Mp4parseStatus>() != MP4PARSE_STATUS_OK);
auto rv = LexerResult(IsDecodeSuccess(result) ? TerminalState::SUCCESS
: TerminalState::FAILURE);
MOZ_LOG(sAVIFLog, LogLevel::Info,
("[this=%p] nsAVIFDecoder::DoDecode end", this));
return rv;
}
nsAVIFDecoder::DecodeResult nsAVIFDecoder::Decode(
SourceBufferIterator& aIterator, IResumable* aOnResume) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] nsAVIFDecoder::DoDecode", this));
// Since the SourceBufferIterator doesn't guarantee a contiguous buffer,
// but the current mp4parse-rust implementation requires it, always buffer
// locally. This keeps the code simpler at the cost of some performance, but
// this implementation is only experimental, so we don't want to spend time
// optimizing it prematurely.
while (!mReadCursor) {
SourceBufferIterator::State state =
aIterator.AdvanceOrScheduleResume(SIZE_MAX, aOnResume);
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] After advance, iterator state is %d", this, state));
switch (state) {
case SourceBufferIterator::WAITING:
return AsVariant(NonDecoderResult::NeedMoreData);
case SourceBufferIterator::COMPLETE:
mReadCursor = mBufferedData.begin();
break;
case SourceBufferIterator::READY: { // copy new data to buffer
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] SourceBufferIterator ready, %zu bytes available",
this, aIterator.Length()));
bool appendSuccess =
mBufferedData.append(aIterator.Data(), aIterator.Length());
if (!appendSuccess) {
MOZ_LOG(sAVIFLog, LogLevel::Error,
("[this=%p] Failed to append %zu bytes to buffer", this,
aIterator.Length()));
}
break;
}
default:
MOZ_ASSERT_UNREACHABLE("unexpected SourceBufferIterator state");
}
}
Mp4parseIo io = {nsAVIFDecoder::ReadSource, this};
UniquePtr<AVIFParser> parser;
Mp4parseStatus create_parser_status = AVIFParser::Create(&io, parser);
if (!parser) {
return AsVariant(create_parser_status);
}
const Mp4parseAvifImage* parsedImagePtr = parser->GetImage();
if (!parsedImagePtr) {
return AsVariant(NonDecoderResult::NoPrimaryItem);
}
const Mp4parseAvifImage& parsedImg = *parsedImagePtr;
if (parsedImg.icc_colour_information.data) {
const auto& icc = parsedImg.icc_colour_information;
MOZ_LOG(
sAVIFLog, LogLevel::Debug,
("[this=%p] colr type ICC: %zu bytes %p", this, icc.length, icc.data));
}
if (parsedImg.nclx_colour_information) {
const auto& nclx = *parsedImg.nclx_colour_information;
MOZ_LOG(
sAVIFLog, LogLevel::Debug,
("[this=%p] colr type CICP: cp/tc/mc/full-range %u/%u/%u/%s", this,
nclx.colour_primaries, nclx.transfer_characteristics,
nclx.matrix_coefficients, nclx.full_range_flag ? "true" : "false"));
}
if (!parsedImg.icc_colour_information.data &&
!parsedImg.nclx_colour_information) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] colr box not present", this));
}
if (parsedImg.alpha_image.coded_data.data) {
PostHasTransparency();
}
Orientation orientation = StaticPrefs::image_avif_apply_transforms()
? GetImageOrientation(parsedImg)
: Orientation{};
MaybeIntSize parsedImageSize = GetImageSize(parsedImg);
Maybe<uint8_t> primaryBitDepth =
BitsPerChannelToBitDepth(parsedImg.primary_image.bits_per_channel);
Maybe<uint8_t> alphaBitDepth =
BitsPerChannelToBitDepth(parsedImg.alpha_image.bits_per_channel);
if (parsedImageSize.isSome()) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] Parser returned image size %d x %d (%d/%d bit)", this,
parsedImageSize->width, parsedImageSize->height,
primaryBitDepth.valueOr(0), alphaBitDepth.valueOr(0)));
PostSize(parsedImageSize->width, parsedImageSize->height, orientation);
if (IsMetadataDecode()) {
MOZ_LOG(
sAVIFLog, LogLevel::Debug,
("[this=%p] Finishing metadata decode without image decode", this));
return AsVariant(NonDecoderResult::MetadataOk);
}
} else {
MOZ_LOG(sAVIFLog, LogLevel::Error,
("[this=%p] Parser returned no image size, decoding...", this));
}
UniquePtr<AVIFDecoderInterface> decoder;
DecodeResult r = StaticPrefs::image_avif_use_dav1d()
? Dav1dDecoder::Create(std::move(parser), decoder)
: AOMDecoder::Create(std::move(parser), decoder);
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] Create %sDecoder %ssuccessfully", this,
StaticPrefs::image_avif_use_dav1d() ? "Dav1d" : "AOM",
IsDecodeSuccess(r) ? "" : "un"));
if (!IsDecodeSuccess(r)) {
return r;
}
MOZ_ASSERT(decoder);
r = decoder->Decode(IsMetadataDecode(), parsedImg);
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] Decoder%s->Decode() %s", this,
StaticPrefs::image_avif_use_dav1d() ? "Dav1d" : "AOM",
IsDecodeSuccess(r) ? "succeeds" : "fails"));
if (!IsDecodeSuccess(r)) {
return r;
}
AVIFDecodedData& decodedData = decoder->GetDecodedData();
MOZ_ASSERT(decodedData.mColourPrimaries !=
CICP::ColourPrimaries::CP_UNSPECIFIED);
MOZ_ASSERT(decodedData.mTransferCharacteristics !=
CICP::TransferCharacteristics::TC_UNSPECIFIED);
MOZ_ASSERT(decodedData.mColorRange <= gfx::ColorRange::_Last);
MOZ_ASSERT(decodedData.mYUVColorSpace <= gfx::YUVColorSpace::_Last);
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] decodedData.mColorRange: %hhd", this,
static_cast<uint8_t>(decodedData.mColorRange)));
// Technically it's valid but we don't handle it now (Bug 1682318).
if (decodedData.mAlpha && decodedData.mAlpha->mSize != decodedData.mYSize) {
return AsVariant(NonDecoderResult::AlphaYSizeMismatch);
}
if (parsedImageSize.isNothing()) {
MOZ_LOG(sAVIFLog, LogLevel::Error,
("[this=%p] Using decoded image size: %d x %d", this,
decodedData.mPicSize.width, decodedData.mPicSize.height));
PostSize(decodedData.mPicSize.width, decodedData.mPicSize.height,
orientation);
AccumulateCategorical(LABELS_AVIF_ISPE::absent);
} else if (decodedData.mPicSize.width != parsedImageSize->width ||
decodedData.mPicSize.height != parsedImageSize->height) {
MOZ_LOG(sAVIFLog, LogLevel::Error,
("[this=%p] Metadata image size doesn't match decoded image size: "
"(%d x %d) != (%d x %d)",
this, parsedImageSize->width, parsedImageSize->height,
decodedData.mPicSize.width, decodedData.mPicSize.height));
AccumulateCategorical(LABELS_AVIF_ISPE::bitstream_mismatch);
return AsVariant(NonDecoderResult::MetadataImageSizeMismatch);
} else {
AccumulateCategorical(LABELS_AVIF_ISPE::valid);
}
const bool hasAlpha = decodedData.mAlpha.isSome();
if (hasAlpha) {
PostHasTransparency();
}
if (IsMetadataDecode()) {
return AsVariant(NonDecoderResult::MetadataOk);
}
// These data must be recorded after metadata has been decoded
// (IsMetadataDecode()=false) or else they would be double-counted.
AccumulateCategorical(
gColorSpaceLabel[static_cast<size_t>(decodedData.mYUVColorSpace)]);
AccumulateCategorical(
gColorDepthLabel[static_cast<size_t>(decodedData.mColorDepth)]);
RecordPixiTelemetry(primaryBitDepth,
BitDepthForColorDepth(decodedData.mColorDepth),
"primary");
if (decodedData.mAlpha) {
AccumulateCategorical(LABELS_AVIF_ALPHA::present);
RecordPixiTelemetry(alphaBitDepth,
BitDepthForColorDepth(decodedData.mAlpha->mDepth),
"alpha");
} else {
AccumulateCategorical(LABELS_AVIF_ALPHA::absent);
}
IntSize rgbSize = Size();
MOZ_ASSERT(rgbSize == decodedData.mPicSize);
if (parsedImg.nclx_colour_information &&
parsedImg.icc_colour_information.data) {
AccumulateCategorical(LABELS_AVIF_COLR::both);
} else if (parsedImg.nclx_colour_information) {
AccumulateCategorical(LABELS_AVIF_COLR::nclx);
} else if (parsedImg.icc_colour_information.data) {
AccumulateCategorical(LABELS_AVIF_COLR::icc);
} else {
AccumulateCategorical(LABELS_AVIF_COLR::absent);
}
if (CICP::IsReserved(decodedData.mColourPrimaries)) {
AccumulateCategorical(LABELS_AVIF_CICP_CP::RESERVED_REST);
} else {
AccumulateCategorical(
static_cast<LABELS_AVIF_CICP_CP>(decodedData.mColourPrimaries));
}
if (CICP::IsReserved(decodedData.mTransferCharacteristics)) {
AccumulateCategorical(LABELS_AVIF_CICP_TC::RESERVED);
} else {
AccumulateCategorical(
static_cast<LABELS_AVIF_CICP_TC>(decodedData.mTransferCharacteristics));
}
if (CICP::IsReserved(decodedData.mMatrixCoefficients)) {
AccumulateCategorical(LABELS_AVIF_CICP_MC::RESERVED);
} else {
AccumulateCategorical(
static_cast<LABELS_AVIF_CICP_MC>(decodedData.mMatrixCoefficients));
}
// Read color profile
if (mCMSMode != CMSMode::Off) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] Processing color profile", this));
// See comment on AVIFDecodedData
if (parsedImg.icc_colour_information.data) {
const auto& icc = parsedImg.icc_colour_information;
mInProfile = qcms_profile_from_memory(icc.data, icc.length);
} else {
const auto& cp = decodedData.mColourPrimaries;
const auto& tc = decodedData.mTransferCharacteristics;
if (CICP::IsReserved(cp)) {
MOZ_LOG(sAVIFLog, LogLevel::Error,
("[this=%p] colour_primaries reserved value (%hhu) is invalid; "
"failing",
this, cp));
return AsVariant(NonDecoderResult::InvalidCICP);
}
if (CICP::IsReserved(tc)) {
MOZ_LOG(sAVIFLog, LogLevel::Error,
("[this=%p] transfer_characteristics reserved value (%hhu) is "
"invalid; failing",
this, tc));
return AsVariant(NonDecoderResult::InvalidCICP);
}
MOZ_ASSERT(cp != CICP::ColourPrimaries::CP_UNSPECIFIED &&
!CICP::IsReserved(cp));
MOZ_ASSERT(tc != CICP::TransferCharacteristics::TC_UNSPECIFIED &&
!CICP::IsReserved(tc));
mInProfile = qcms_profile_create_cicp(cp, tc);
}
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] mInProfile %p", this, mInProfile));
} else {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] CMSMode::Off, skipping color profile", this));
}
if (mInProfile && GetCMSOutputProfile()) {
auto intent = static_cast<qcms_intent>(gfxPlatform::GetRenderingIntent());
qcms_data_type inType;
qcms_data_type outType;
// If we're not mandating an intent, use the one from the image.
if (gfxPlatform::GetRenderingIntent() == -1) {
intent = qcms_profile_get_rendering_intent(mInProfile);
}
uint32_t profileSpace = qcms_profile_get_color_space(mInProfile);
if (profileSpace != icSigGrayData) {
// If the transform happens with SurfacePipe, it will be in RGBA if we
// have an alpha channel, because the swizzle and premultiplication
// happens after color management. Otherwise it will be in BGRA because
// the swizzle happens at the start.
if (hasAlpha) {
inType = QCMS_DATA_RGBA_8;
outType = QCMS_DATA_RGBA_8;
} else {
inType = gfxPlatform::GetCMSOSRGBAType();
outType = inType;
}
} else {
if (hasAlpha) {
inType = QCMS_DATA_GRAYA_8;
outType = gfxPlatform::GetCMSOSRGBAType();
} else {
inType = QCMS_DATA_GRAY_8;
outType = gfxPlatform::GetCMSOSRGBAType();
}
}
mTransform = qcms_transform_create(mInProfile, inType,
GetCMSOutputProfile(), outType, intent);
}
// Get suggested format and size. Note that GetYCbCrToRGBDestFormatAndSize
// force format to be B8G8R8X8 if it's not.
gfx::SurfaceFormat format = SurfaceFormat::OS_RGBX;
gfx::GetYCbCrToRGBDestFormatAndSize(decodedData, format, rgbSize);
if (hasAlpha) {
// We would use libyuv to do the YCbCrA -> ARGB convertion, which only
// works for B8G8R8A8.
format = SurfaceFormat::B8G8R8A8;
}
const int bytesPerPixel = BytesPerPixel(format);
const CheckedInt rgbStride = CheckedInt<int>(rgbSize.width) * bytesPerPixel;
const CheckedInt rgbBufLength = rgbStride * rgbSize.height;
if (!rgbStride.isValid() || !rgbBufLength.isValid()) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] overflow calculating rgbBufLength: rbgSize.width: %d, "
"rgbSize.height: %d, "
"bytesPerPixel: %u",
this, rgbSize.width, rgbSize.height, bytesPerPixel));
return AsVariant(NonDecoderResult::SizeOverflow);
}
UniquePtr<uint8_t[]> rgbBuf = MakeUnique<uint8_t[]>(rgbBufLength.value());
const uint8_t* endOfRgbBuf = {rgbBuf.get() + rgbBufLength.value()};
if (!rgbBuf) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] allocation of %u-byte rgbBuf failed", this,
rgbBufLength.value()));
return AsVariant(NonDecoderResult::OutOfMemory);
}
if (decodedData.mAlpha) {
const auto wantPremultiply =
!bool(GetSurfaceFlags() & SurfaceFlags::NO_PREMULTIPLY_ALPHA);
const bool& hasPremultiply = decodedData.mAlpha->mPremultiplied;
PremultFunc premultOp = nullptr;
if (wantPremultiply && !hasPremultiply) {
premultOp = libyuv::ARGBAttenuate;
} else if (!wantPremultiply && hasPremultiply) {
premultOp = libyuv::ARGBUnattenuate;
}
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] calling gfx::ConvertYCbCrAToARGB premultOp: %p", this,
premultOp));
gfx::ConvertYCbCrAToARGB(decodedData, *decodedData.mAlpha, format, rgbSize,
rgbBuf.get(), rgbStride.value(), premultOp);
} else {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] calling gfx::ConvertYCbCrToRGB", this));
gfx::ConvertYCbCrToRGB(decodedData, format, rgbSize, rgbBuf.get(),
rgbStride.value());
}
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] calling SurfacePipeFactory::CreateSurfacePipe", this));
Maybe<SurfacePipe> pipe = SurfacePipeFactory::CreateSurfacePipe(
this, rgbSize, OutputSize(), FullFrame(), format, format, Nothing(),
mTransform, SurfacePipeFlags());
if (!pipe) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] could not initialize surface pipe", this));
return AsVariant(NonDecoderResult::PipeInitError);
}
MOZ_LOG(sAVIFLog, LogLevel::Debug, ("[this=%p] writing to surface", this));
WriteState writeBufferResult = WriteState::NEED_MORE_DATA;
for (uint8_t* rowPtr = rgbBuf.get(); rowPtr < endOfRgbBuf;
rowPtr += rgbStride.value()) {
writeBufferResult = pipe->WriteBuffer(reinterpret_cast<uint32_t*>(rowPtr));
Maybe<SurfaceInvalidRect> invalidRect = pipe->TakeInvalidRect();
if (invalidRect) {
PostInvalidation(invalidRect->mInputSpaceRect,
Some(invalidRect->mOutputSpaceRect));
}
if (writeBufferResult == WriteState::FAILURE) {
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] error writing rowPtr to surface pipe", this));
} else if (writeBufferResult == WriteState::FINISHED) {
MOZ_ASSERT(rowPtr + rgbStride.value() == endOfRgbBuf);
}
}
MOZ_LOG(sAVIFLog, LogLevel::Debug,
("[this=%p] writing to surface complete", this));
if (writeBufferResult == WriteState::FINISHED) {
PostFrameStop(hasAlpha ? Opacity::SOME_TRANSPARENCY
: Opacity::FULLY_OPAQUE);
PostDecodeDone();
return r;
}
return AsVariant(NonDecoderResult::WriteBufferError);
}
/* static */
bool nsAVIFDecoder::IsDecodeSuccess(const DecodeResult& aResult) {
if (aResult.is<Dav1dResult>() || aResult.is<AOMResult>()) {
return aResult == DecodeResult(Dav1dResult(0)) ||
aResult == DecodeResult(AOMResult(AOM_CODEC_OK));
}
return false;
}
void nsAVIFDecoder::RecordDecodeResultTelemetry(
const nsAVIFDecoder::DecodeResult& aResult) {
if (aResult.is<Mp4parseStatus>()) {
switch (aResult.as<Mp4parseStatus>()) {
case MP4PARSE_STATUS_OK:
MOZ_ASSERT_UNREACHABLE(
"Expect NonDecoderResult, Dav1dResult or AOMResult");
break;
case MP4PARSE_STATUS_OOM:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::out_of_memory);
break;
case MP4PARSE_STATUS_UNSUPPORTED_A1LX:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::unsupported_a1lx);
break;
case MP4PARSE_STATUS_UNSUPPORTED_A1OP:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::unsupported_a1op);
break;
case MP4PARSE_STATUS_UNSUPPORTED_CLAP:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::unsupported_clap);
break;
case MP4PARSE_STATUS_UNSUPPORTED_GRID:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::unsupported_grid);
break;
case MP4PARSE_STATUS_UNSUPPORTED_IPRO:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::unsupported_ipro);
break;
case MP4PARSE_STATUS_UNSUPPORTED_LSEL:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::unsupported_lsel);
break;
default:
MOZ_FALLTHROUGH_ASSERT("unexpected Mp4parseStatus value");
case MP4PARSE_STATUS_BAD_ARG:
case MP4PARSE_STATUS_INVALID:
case MP4PARSE_STATUS_UNSUPPORTED:
case MP4PARSE_STATUS_EOF:
case MP4PARSE_STATUS_IO:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::parse_error);
break;
}
} else if (aResult.is<NonDecoderResult>()) {
switch (aResult.as<NonDecoderResult>()) {
case NonDecoderResult::NeedMoreData:
break;
case NonDecoderResult::MetadataOk:
break;
case NonDecoderResult::NoPrimaryItem:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::no_primary_item);
break;
case NonDecoderResult::SizeOverflow:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::size_overflow);
break;
case NonDecoderResult::OutOfMemory:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::out_of_memory);
break;
case NonDecoderResult::PipeInitError:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::pipe_init_error);
break;
case NonDecoderResult::WriteBufferError:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::write_buffer_error);
break;
case NonDecoderResult::AlphaYSizeMismatch:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::alpha_y_sz_mismatch);
break;
case NonDecoderResult::AlphaYColorDepthMismatch:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::alpha_y_bpc_mismatch);
break;
case NonDecoderResult::MetadataImageSizeMismatch:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::ispe_mismatch);
break;
case NonDecoderResult::InvalidCICP:
AccumulateCategorical(LABELS_AVIF_DECODE_RESULT::invalid_cicp);
break;
default:
MOZ_ASSERT_UNREACHABLE("unknown NonDecoderResult");
break;
}
} else {
MOZ_ASSERT(aResult.is<Dav1dResult>() || aResult.is<AOMResult>());
AccumulateCategorical(aResult.is<Dav1dResult>() ? LABELS_AVIF_DECODER::dav1d
: LABELS_AVIF_DECODER::aom);
AccumulateCategorical(IsDecodeSuccess(aResult)
? LABELS_AVIF_DECODE_RESULT::success
: LABELS_AVIF_DECODE_RESULT::decode_error);
}
}
Maybe<Telemetry::HistogramID> nsAVIFDecoder::SpeedHistogram() const {
return Some(Telemetry::IMAGE_DECODE_SPEED_AVIF);
}
} // namespace image
} // namespace mozilla
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