README.md - libavif - Git at Google


            
            # libavif [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/github/louquillio/libavif?branch=master&svg=true)](https://ci.appveyor.com/project/louquillio/libavif) [![Travis Build Status](https://travis-ci.com/AOMediaCodec/libavif.svg?branch=master)](https://travis-ci.com/AOMediaCodec/libavif)


            This library aims to be a friendly, portable C implementation of the AV1 Image File Format, as described here:


            <https://aomediacodec.github.io/av1-avif/>


            It is a work-in-progress, but can already encode and decode all AOM supported YUV formats and bit depths (with alpha).


            For now, it is recommended that you checkout/use [tagged releases](https://github.com/AOMediaCodec/libavif/releases) instead of just using the master branch. I will regularly create new versions as bugfixes and features are added.


            ## Usage


            ### Basic Decoding (Single Image)


            ```c

            
            #include "avif/avif.h"


            // NOTE: avifDecoderRead() offers the simplest means to get an avifImage that is complete independent of

            
            // an avifDecoder, but at the cost of additional allocations and copies, and no support for image sequences.

            
            // If you don't mind keeping around the avifDecoder while you read in the image and/or need image sequence

            
            // support, skip ahead to the Advanced Decoding example. It is only one additional function call, and the

            
            // avifImage is owned by the avifDecoder.


            // point raw.data and raw.size to the contents of an .avif(s)

            
            avifROData raw;

            
            raw.data = ...;

            
            raw.size = ...;


            avifImage * image = avifImageCreateEmpty();

            
            avifDecoder * decoder = avifDecoderCreate();

            
            avifResult decodeResult = avifDecoderRead(decoder, image, &raw);

            
            if (decodeResult == AVIF_RESULT_OK) {

            
                // image is an independent copy of decoded data, decoder may be destroyed here


                ... image->width;

            
                ... image->height;

            
                ... image->depth;     // If >8, all plane ptrs below are uint16_t*

            
                ... image->yuvFormat; // U and V planes might be smaller than Y based on format,

            
                                        // use avifGetPixelFormatInfo() to find out in a generic way


                // Option 1: Use YUV planes directly

            
                ... image->yuvPlanes;

            
                ... image->yuvRowBytes;


                // Option 2: Convert to RGB and use RGB planes

            
                avifImageYUVToRGB(image);

            
                ... image->rgbPlanes;

            
                ... image->rgbRowBytes;


                // Use alpha plane, if present

            
                if (image->alphaPlane) {

            
                    ... image->alphaPlane;

            
                    ... image->alphaRowBytes;

            
                }


                // Optional: query color profile

            
                if (image->profileFormat == AVIF_PROFILE_FORMAT_ICC) {

            
                    // ICC profile present

            
                    ... image->icc.data;

            
                    ... image->icc.size;

            
                } else if (image->profileFormat == AVIF_PROFILE_FORMAT_NCLX) {

            
                    // NCLX profile present

            
                    ... image->nclx.colourPrimaries;

            
                    ... image->nclx.transferCharacteristics;

            
                    ... image->nclx.matrixCoefficients;

            
                    ... image->nclx.fullRangeFlag;

            
                }


                // Optional: Exif and XMP metadata querying

            
                if(image->exif.size > 0) {

            
                    // Parse Exif payload

            
                    ... image->exif.data;

            
                    ... image->exif.size;

            
                }

            
                if(image->xmp.size > 0) {

            
                    // Parse XMP document

            
                    ... image->xmp.data;

            
                    ... image->xmp.size;

            
                }

            
            } else {

            
                printf("ERROR: Failed to decode: %s\n", avifResultToString(result));

            
            }


            avifImageDestroy(image);

            
            avifDecoderDestroy(decoder);

            
            ```


            ### Advanced Decoding (Image Sequences & Avoiding Copies)


            ```c

            
            #include "avif/avif.h"


            // point raw.data and raw.size to the contents of an .avif(s)

            
            avifROData raw;

            
            raw.data = ...;

            
            raw.size = ...;


            avifDecoder * decoder = avifDecoderCreate();

            
            avifResult decodeResult = avifDecoderParse(decoder, &raw);

            
            if (decodeResult == AVIF_RESULT_OK) {

            
                // Timing and frame information

            
                ... decoder->imageCount; // Total images expected to decode

            
                ... decoder->duration;   // Duration of entire sequence (seconds)


                for (;;) {

            
                    avifResult nextImageResult = avifDecoderNextImage(decoder);

            
                    if (nextImageResult == AVIF_RESULT_NO_IMAGES_REMAINING) {

            
                        // No more images, bail out. Verify that you got the expected amount of images decoded.

            
                        break;

            
                    } else if (nextImageResult != AVIF_RESULT_OK) {

            
                        printf("ERROR: Failed to decode all frames: %s\n", avifResultToString(nextImageResult));

            
                        break;

            
                    }


                    // decoder->image now points at decoder owned planes, and the image itself

            
                    // is also owned and dependent on decoder. decoder->image's data/pointers are

            
                    // likely to be completely different after each call to avifDecoderNextImage().


                    ... decoder->image->width;

            
                    ... decoder->image->height;

            
                    ... decoder->image->depth;     // If >8, all plane ptrs below are uint16_t*

            
                    ... decoder->image->yuvFormat; // U and V planes might be smaller than Y based on format,

            
                                                    // use avifGetPixelFormatInfo() to find out in a generic way


                    // See Basic Decoding example for color profile and metadata querying


                    // Option 1: Use YUV planes directly

            
                    ... decoder->image->yuvPlanes;

            
                    ... decoder->image->yuvRowBytes;


                    // Option 2: Convert to RGB and use RGB planes

            
                    avifImageYUVToRGB(decoder->image); // (this is legal to call on decoder->image)

            
                    ... decoder->image->rgbPlanes;

            
                    ... decoder->image->rgbRowBytes;


                    // Use alpha plane, if present

            
                    if (decoder->image->alphaPlane) {

            
                        ... decoder->image->alphaPlane;

            
                        ... decoder->image->alphaRowBytes;

            
                    }


                    // Timing and frame information

            
                    ... decoder->imageIndex;           // Current index (0-based)

            
                    ... decoder->imageTiming.pts;      // Current image's presentation timestamp (seconds)

            
                    ... decoder->imageTiming.duration; // Current image's duration (seconds)


                    // Optional: If you want to have a decoder-independent copy of image data

            
                    avifImage * image = avifImageCreateEmpty();

            
                    avifImageCopy(image, decoder->image);

            
                    ... image;                         // do something with image

            
                    avifImageDestroy(image);           // destroy later

            
                }

            
            } else {

            
                printf("ERROR: Failed to decode: %s\n", avifResultToString(result));

            
            }


            avifDecoderDestroy(decoder);

            
            ```


            ### Encoding


            ```c

            
            #include "avif/avif.h"


            int width = 32;

            
            int height = 32;

            
            int depth = 8;

            
            avifPixelFormat format = AVIF_PIXEL_FORMAT_YUV420;

            
            avifImage * image = avifImageCreate(width, height, depth, format);


            // Option 1: Populate YUV planes

            
            avifImageAllocatePlanes(image, AVIF_PLANES_YUV);

            
            ... image->yuvPlanes;

            
            ... image->yuvRowBytes;


            // Option 2: Populate RGB planes (if YUV planes are absent, RGB->YUV conversion will automatically happen)

            
            avifImageAllocatePlanes(image, AVIF_PLANES_RGB);

            
            ... image->rgbPlanes;

            
            ... image->rgbRowBytes;


            // Optional: Populate alpha plane

            
            avifImageAllocatePlanes(image, AVIF_PLANES_A);

            
            ... image->alphaPlane;

            
            ... image->alphaRowBytes;


            // Optional: Set color profile based on NCLX box

            
            avifNclxColorProfile nclx;

            
            nclx.colourPrimaries = AVIF_NCLX_COLOUR_PRIMARIES_BT709;

            
            nclx.transferCharacteristics = AVIF_NCLX_TRANSFER_CHARACTERISTICS_GAMMA22;

            
            nclx.matrixCoefficients = AVIF_NCLX_MATRIX_COEFFICIENTS_BT709;

            
            nclx.fullRangeFlag = AVIF_NCLX_FULL_RANGE;

            
            avifImageSetProfileNCLX(image, &nclx);


            // Optional: Set color profile based on ICC profile

            
            uint8_t * icc = ...;  // raw ICC profile data

            
            size_t iccSize = ...; // Length of raw ICC profile data

            
            avifImageSetProfileICC(image, icc, iccSize);


            // Optional: Set Exif and/or XMP metadata

            
            uint8_t * exif = ...;  // raw Exif payload

            
            size_t exifSize = ...; // Length of raw Exif payload

            
            avifImageSetMetadataExif(image, exif, exifSize);

            
            uint8_t * xmp = ...;  // raw XMP document

            
            size_t xmpSize = ...; // Length of raw XMP document

            
            avifImageSetMetadataXMP(image, xmp, xmpSize);


            avifRWData output = AVIF_DATA_EMPTY;

            
            avifEncoder * encoder = avifEncoderCreate();

            
            encoder->maxThreads = ...; // Choose max encoder threads, 1 to disable multithreading

            
            encoder->minQuantizer = AVIF_QUANTIZER_LOSSLESS;

            
            encoder->maxQuantizer = AVIF_QUANTIZER_LOSSLESS;

            
            avifResult encodeResult = avifEncoderWrite(encoder, image, &output);

            
            if (encodeResult == AVIF_RESULT_OK) {

            
                // output contains a valid .avif file's contents

            
                ... output.data;

            
                ... output.size;

            
            } else {

            
                printf("ERROR: Failed to encode: %s\n", avifResultToString(encodeResult));

            
            }

            
            avifImageDestroy(image);

            
            avifRWDataFree(&output);

            
            avifEncoderDestroy(encoder);

            
            ```


            ## Build Notes


            Building libavif requires [CMake](https://cmake.org/).


            No AV1 codecs are enabled by default. Enable them by enabling any of the

            
            following CMake options:


            * `AVIF_CODEC_AOM` - requires CMake, NASM

            
            * `AVIF_CODEC_DAV1D` - requires Meson, Ninja, NASM

            
            * `AVIF_CODEC_RAV1E` - requires cargo (Rust), NASM


            These libraries (in their C API form) must be externally available

            
            (discoverable via CMake's `FIND_LIBRARY`) to use them, or if libavif is

            
            a child CMake project, the appropriate CMake target must already exist

            
            by the time libavif's CMake scripts are executed.


            ## Local / Static Builds


            The `ext/` subdirectory contains a handful of basic scripts which each pull

            
            down a known-good copy of an AV1 codec and make a local static library build.

            
            If you want to statically link any codec into your local (static) build of

            
            libavif, building using one of these scripts and then enabling the associated

            
            `AVIF_LOCAL_*` is a convenient method, but you must make sure to disable

            
            `BUILD_SHARED_LIBS` in CMake to instruct it to make a static libavif library.


            If you want to build/install shared libraries for AV1 codecs, you can still

            
            peek inside of each script to see where the current known-good SHA is for each

            
            codec.


            ## Prebuilt Library (Windows)


            If you're building on Windows with Visual Studio 2019 and want to try out libavif without going through the build process, static library builds for both Debug and Release are available on [AppVeyor](https://ci.appveyor.com/project/louquillio/libavif).


            ---


            ## License


            Released under the BSD License.


            ```markdown

            
            Copyright 2019 Joe Drago. All rights reserved.


            Redistribution and use in source and binary forms, with or without

            
            modification, are permitted provided that the following conditions are met:


            1. Redistributions of source code must retain the above copyright notice, this

            
            list of conditions and the following disclaimer.


            2. Redistributions in binary form must reproduce the above copyright notice,

            
            this list of conditions and the following disclaimer in the documentation

            
            and/or other materials provided with the distribution.


            THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

            
            AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

            
            IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

            
            DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE

            
            FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

            
            DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

            
            SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

            
            CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

            
            OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

            
            OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

            
            ```
	# libavif [![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/github/louquillio/libavif?branch=master&svg=true)](https://ci.appveyor.com/project/louquillio/libavif) [![Travis Build Status](https://travis-ci.com/AOMediaCodec/libavif.svg?branch=master)](https://travis-ci.com/AOMediaCodec/libavif)

	This library aims to be a friendly, portable C implementation of the AV1 Image File Format, as described here:

	<https://aomediacodec.github.io/av1-avif/>

	It is a work-in-progress, but can already encode and decode all AOM supported YUV formats and bit depths (with alpha).

	For now, it is recommended that you checkout/use [tagged releases](https://github.com/AOMediaCodec/libavif/releases) instead of just using the master branch. I will regularly create new versions as bugfixes and features are added.

	## Usage

	### Basic Decoding (Single Image)

	```c
	#include "avif/avif.h"

	// NOTE: avifDecoderRead() offers the simplest means to get an avifImage that is complete independent of
	// an avifDecoder, but at the cost of additional allocations and copies, and no support for image sequences.
	// If you don't mind keeping around the avifDecoder while you read in the image and/or need image sequence
	// support, skip ahead to the Advanced Decoding example. It is only one additional function call, and the
	// avifImage is owned by the avifDecoder.

	// point raw.data and raw.size to the contents of an .avif(s)
	avifROData raw;
	raw.data = ...;
	raw.size = ...;

	avifImage * image = avifImageCreateEmpty();
	avifDecoder * decoder = avifDecoderCreate();
	avifResult decodeResult = avifDecoderRead(decoder, image, &raw);
	if (decodeResult == AVIF_RESULT_OK) {
	// image is an independent copy of decoded data, decoder may be destroyed here

	... image->width;
	... image->height;
	... image->depth; // If >8, all plane ptrs below are uint16_t*
	... image->yuvFormat; // U and V planes might be smaller than Y based on format,
	// use avifGetPixelFormatInfo() to find out in a generic way

	// Option 1: Use YUV planes directly
	... image->yuvPlanes;
	... image->yuvRowBytes;

	// Option 2: Convert to RGB and use RGB planes
	avifImageYUVToRGB(image);
	... image->rgbPlanes;
	... image->rgbRowBytes;

	// Use alpha plane, if present
	if (image->alphaPlane) {
	... image->alphaPlane;
	... image->alphaRowBytes;
	}

	// Optional: query color profile
	if (image->profileFormat == AVIF_PROFILE_FORMAT_ICC) {
	// ICC profile present
	... image->icc.data;
	... image->icc.size;
	} else if (image->profileFormat == AVIF_PROFILE_FORMAT_NCLX) {
	// NCLX profile present
	... image->nclx.colourPrimaries;
	... image->nclx.transferCharacteristics;
	... image->nclx.matrixCoefficients;
	... image->nclx.fullRangeFlag;
	}

	// Optional: Exif and XMP metadata querying
	if(image->exif.size > 0) {
	// Parse Exif payload
	... image->exif.data;
	... image->exif.size;
	}
	if(image->xmp.size > 0) {
	// Parse XMP document
	... image->xmp.data;
	... image->xmp.size;
	}
	} else {
	printf("ERROR: Failed to decode: %s\n", avifResultToString(result));
	}

	avifImageDestroy(image);
	avifDecoderDestroy(decoder);
	```

	### Advanced Decoding (Image Sequences & Avoiding Copies)

	```c
	#include "avif/avif.h"

	// point raw.data and raw.size to the contents of an .avif(s)
	avifROData raw;
	raw.data = ...;
	raw.size = ...;

	avifDecoder * decoder = avifDecoderCreate();
	avifResult decodeResult = avifDecoderParse(decoder, &raw);
	if (decodeResult == AVIF_RESULT_OK) {
	// Timing and frame information
	... decoder->imageCount; // Total images expected to decode
	... decoder->duration; // Duration of entire sequence (seconds)

	for (;;) {
	avifResult nextImageResult = avifDecoderNextImage(decoder);
	if (nextImageResult == AVIF_RESULT_NO_IMAGES_REMAINING) {
	// No more images, bail out. Verify that you got the expected amount of images decoded.
	break;
	} else if (nextImageResult != AVIF_RESULT_OK) {
	printf("ERROR: Failed to decode all frames: %s\n", avifResultToString(nextImageResult));
	break;
	}

	// decoder->image now points at decoder owned planes, and the image itself
	// is also owned and dependent on decoder. decoder->image's data/pointers are
	// likely to be completely different after each call to avifDecoderNextImage().

	... decoder->image->width;
	... decoder->image->height;
	... decoder->image->depth; // If >8, all plane ptrs below are uint16_t*
	... decoder->image->yuvFormat; // U and V planes might be smaller than Y based on format,
	// use avifGetPixelFormatInfo() to find out in a generic way

	// See Basic Decoding example for color profile and metadata querying

	// Option 1: Use YUV planes directly
	... decoder->image->yuvPlanes;
	... decoder->image->yuvRowBytes;

	// Option 2: Convert to RGB and use RGB planes
	avifImageYUVToRGB(decoder->image); // (this is legal to call on decoder->image)
	... decoder->image->rgbPlanes;
	... decoder->image->rgbRowBytes;

	// Use alpha plane, if present
	if (decoder->image->alphaPlane) {
	... decoder->image->alphaPlane;
	... decoder->image->alphaRowBytes;
	}

	// Timing and frame information
	... decoder->imageIndex; // Current index (0-based)
	... decoder->imageTiming.pts; // Current image's presentation timestamp (seconds)
	... decoder->imageTiming.duration; // Current image's duration (seconds)

	// Optional: If you want to have a decoder-independent copy of image data
	avifImage * image = avifImageCreateEmpty();
	avifImageCopy(image, decoder->image);
	... image; // do something with image
	avifImageDestroy(image); // destroy later
	}
	} else {
	printf("ERROR: Failed to decode: %s\n", avifResultToString(result));
	}

	avifDecoderDestroy(decoder);
	```

	### Encoding

	```c
	#include "avif/avif.h"

	int width = 32;
	int height = 32;
	int depth = 8;
	avifPixelFormat format = AVIF_PIXEL_FORMAT_YUV420;
	avifImage * image = avifImageCreate(width, height, depth, format);

	// Option 1: Populate YUV planes
	avifImageAllocatePlanes(image, AVIF_PLANES_YUV);
	... image->yuvPlanes;
	... image->yuvRowBytes;

	// Option 2: Populate RGB planes (if YUV planes are absent, RGB->YUV conversion will automatically happen)
	avifImageAllocatePlanes(image, AVIF_PLANES_RGB);
	... image->rgbPlanes;
	... image->rgbRowBytes;

	// Optional: Populate alpha plane
	avifImageAllocatePlanes(image, AVIF_PLANES_A);
	... image->alphaPlane;
	... image->alphaRowBytes;

	// Optional: Set color profile based on NCLX box
	avifNclxColorProfile nclx;
	nclx.colourPrimaries = AVIF_NCLX_COLOUR_PRIMARIES_BT709;
	nclx.transferCharacteristics = AVIF_NCLX_TRANSFER_CHARACTERISTICS_GAMMA22;
	nclx.matrixCoefficients = AVIF_NCLX_MATRIX_COEFFICIENTS_BT709;
	nclx.fullRangeFlag = AVIF_NCLX_FULL_RANGE;
	avifImageSetProfileNCLX(image, &nclx);

	// Optional: Set color profile based on ICC profile
	uint8_t * icc = ...; // raw ICC profile data
	size_t iccSize = ...; // Length of raw ICC profile data
	avifImageSetProfileICC(image, icc, iccSize);

	// Optional: Set Exif and/or XMP metadata
	uint8_t * exif = ...; // raw Exif payload
	size_t exifSize = ...; // Length of raw Exif payload
	avifImageSetMetadataExif(image, exif, exifSize);
	uint8_t * xmp = ...; // raw XMP document
	size_t xmpSize = ...; // Length of raw XMP document
	avifImageSetMetadataXMP(image, xmp, xmpSize);

	avifRWData output = AVIF_DATA_EMPTY;
	avifEncoder * encoder = avifEncoderCreate();
	encoder->maxThreads = ...; // Choose max encoder threads, 1 to disable multithreading
	encoder->minQuantizer = AVIF_QUANTIZER_LOSSLESS;
	encoder->maxQuantizer = AVIF_QUANTIZER_LOSSLESS;
	avifResult encodeResult = avifEncoderWrite(encoder, image, &output);
	if (encodeResult == AVIF_RESULT_OK) {
	// output contains a valid .avif file's contents
	... output.data;
	... output.size;
	} else {
	printf("ERROR: Failed to encode: %s\n", avifResultToString(encodeResult));
	}
	avifImageDestroy(image);
	avifRWDataFree(&output);
	avifEncoderDestroy(encoder);
	```

	## Build Notes

	Building libavif requires [CMake](https://cmake.org/).

	No AV1 codecs are enabled by default. Enable them by enabling any of the
	following CMake options:

	* `AVIF_CODEC_AOM` - requires CMake, NASM
	* `AVIF_CODEC_DAV1D` - requires Meson, Ninja, NASM
	* `AVIF_CODEC_RAV1E` - requires cargo (Rust), NASM

	These libraries (in their C API form) must be externally available
	(discoverable via CMake's `FIND_LIBRARY`) to use them, or if libavif is
	a child CMake project, the appropriate CMake target must already exist
	by the time libavif's CMake scripts are executed.

	## Local / Static Builds

	The `ext/` subdirectory contains a handful of basic scripts which each pull
	down a known-good copy of an AV1 codec and make a local static library build.
	If you want to statically link any codec into your local (static) build of
	libavif, building using one of these scripts and then enabling the associated
	`AVIF_LOCAL_*` is a convenient method, but you must make sure to disable
	`BUILD_SHARED_LIBS` in CMake to instruct it to make a static libavif library.

	If you want to build/install shared libraries for AV1 codecs, you can still
	peek inside of each script to see where the current known-good SHA is for each
	codec.

	## Prebuilt Library (Windows)

	If you're building on Windows with Visual Studio 2019 and want to try out libavif without going through the build process, static library builds for both Debug and Release are available on [AppVeyor](https://ci.appveyor.com/project/louquillio/libavif).

	---

	## License

	Released under the BSD License.

	```markdown
	Copyright 2019 Joe Drago. All rights reserved.

	Redistribution and use in source and binary forms, with or without
	modification, are permitted provided that the following conditions are met:

	1. Redistributions of source code must retain the above copyright notice, this
	list of conditions and the following disclaimer.

	2. Redistributions in binary form must reproduce the above copyright notice,
	this list of conditions and the following disclaimer in the documentation
	and/or other materials provided with the distribution.

	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
	FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
	CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	```