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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/. */
#ifndef mozilla_image_decoders_nsAVIFDecoder_h
#define mozilla_image_decoders_nsAVIFDecoder_h
#include "Decoder.h"
#include "mp4parse.h"
#include "SurfacePipe.h"
#include "aom/aom_decoder.h"
#include "dav1d/dav1d.h"
#include "mozilla/Telemetry.h"
namespace mozilla {
namespace image {
class RasterImage;
class nsAVIFDecoder final : public Decoder {
public:
virtual ~nsAVIFDecoder();
DecoderType GetType() const override { return DecoderType::AVIF; }
protected:
LexerResult DoDecode(SourceBufferIterator& aIterator,
IResumable* aOnResume) override;
private:
friend class DecoderFactory;
friend class AVIFDecoderInterface;
// Decoders should only be instantiated via DecoderFactory.
explicit nsAVIFDecoder(RasterImage* aImage);
static intptr_t ReadSource(uint8_t* aDestBuf, uintptr_t aDestBufSize,
void* aUserData);
typedef int Dav1dResult;
enum class NonAOMCodecError { NoFrame, SizeOverflow };
typedef Variant<aom_codec_err_t, NonAOMCodecError> AOMResult;
enum class NonDecoderResult {
NeedMoreData,
MetadataOk,
ParseError,
NoPrimaryItem,
SizeOverflow,
OutOfMemory,
PipeInitError,
WriteBufferError,
AlphaYSizeMismatch,
AlphaYColorDepthMismatch
};
using DecodeResult = Variant<NonDecoderResult, Dav1dResult, AOMResult>;
DecodeResult Decode(SourceBufferIterator& aIterator, IResumable* aOnResume);
static bool IsDecodeSuccess(const DecodeResult& aResult);
void RecordDecodeResultTelemetry(const DecodeResult& aResult);
Vector<uint8_t> mBufferedData;
/// Pointer to the next place to read from mBufferedData
const uint8_t* mReadCursor = nullptr;
};
} // namespace image
} // namespace mozilla
#endif // mozilla_image_decoders_nsAVIFDecoder_h
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