diff options
Diffstat (limited to 'third_party/jpeg-xl/lib/include/jxl/encode.h')
| -rw-r--r-- | third_party/jpeg-xl/lib/include/jxl/encode.h | 403 |
1 files changed, 210 insertions, 193 deletions
diff --git a/third_party/jpeg-xl/lib/include/jxl/encode.h b/third_party/jpeg-xl/lib/include/jxl/encode.h index 2a87821f06..bb11dd7572 100644 --- a/third_party/jpeg-xl/lib/include/jxl/encode.h +++ b/third_party/jpeg-xl/lib/include/jxl/encode.h @@ -41,8 +41,8 @@ JXL_EXPORT uint32_t JxlEncoderVersion(void); /** * Opaque structure that holds the JPEG XL encoder. * - * Allocated and initialized with JxlEncoderCreate(). - * Cleaned up and deallocated with JxlEncoderDestroy(). + * Allocated and initialized with @ref JxlEncoderCreate(). + * Cleaned up and deallocated with @ref JxlEncoderDestroy(). */ typedef struct JxlEncoderStruct JxlEncoder; @@ -50,9 +50,9 @@ typedef struct JxlEncoderStruct JxlEncoder; * Settings and metadata for a single image frame. This includes encoder options * for a frame such as compression quality and speed. * - * Allocated and initialized with JxlEncoderFrameSettingsCreate(). + * Allocated and initialized with @ref JxlEncoderFrameSettingsCreate(). * Cleaned up and deallocated when the encoder is destroyed with - * JxlEncoderDestroy(). + * @ref JxlEncoderDestroy(). */ typedef struct JxlEncoderFrameSettingsStruct JxlEncoderFrameSettings; @@ -126,7 +126,7 @@ typedef enum { typedef enum { /** Sets encoder effort/speed level without affecting decoding speed. Valid * values are, from faster to slower speed: 1:lightning 2:thunder 3:falcon - * 4:cheetah 5:hare 6:wombat 7:squirrel 8:kitten 9:tortoise. + * 4:cheetah 5:hare 6:wombat 7:squirrel 8:kitten 9:tortoise 10:glacier. * Default: squirrel (7). */ JXL_ENC_FRAME_SETTING_EFFORT = 0, @@ -145,7 +145,7 @@ typedef enum { */ JXL_ENC_FRAME_SETTING_RESAMPLING = 2, - /** Similar to JXL_ENC_FRAME_SETTING_RESAMPLING, but for extra channels. + /** Similar to ::JXL_ENC_FRAME_SETTING_RESAMPLING, but for extra channels. * Integer option, use -1 for the default behavior (depends on encoder * implementation), 1 for no downsampling (1x1), 2 for 2x2 downsampling, 4 for * 4x4 downsampling, 8 for 8x8 downsampling. @@ -158,7 +158,7 @@ typedef enum { * downsampled resolution, not the full image resolution. The downsampled * resolution is given by ceil(xsize / resampling), ceil(ysize / resampling) * with xsize and ysize the dimensions given in the basic info, and resampling - * the factor set with @ref JXL_ENC_FRAME_SETTING_RESAMPLING. + * the factor set with ::JXL_ENC_FRAME_SETTING_RESAMPLING. * Use 0 to disable, 1 to enable. Default value is 0. */ JXL_ENC_FRAME_SETTING_ALREADY_DOWNSAMPLED = 4, @@ -171,8 +171,8 @@ typedef enum { JXL_ENC_FRAME_SETTING_PHOTON_NOISE = 5, /** Enables adaptive noise generation. This setting is not recommended for - * use, please use JXL_ENC_FRAME_SETTING_PHOTON_NOISE instead. Use -1 for the - * default (encoder chooses), 0 to disable, 1 to enable. + * use, please use ::JXL_ENC_FRAME_SETTING_PHOTON_NOISE instead. Use -1 for + * the default (encoder chooses), 0 to disable, 1 to enable. */ JXL_ENC_FRAME_SETTING_NOISE = 6, @@ -320,27 +320,28 @@ typedef enum { * 1 = index this frame within the Frame Index Box. * If any frames are indexed, the first frame needs to * be indexed, too. If the first frame is not indexed, and - * a later frame is attempted to be indexed, JXL_ENC_ERROR will occur. + * a later frame is attempted to be indexed, ::JXL_ENC_ERROR will occur. * If non-keyframes, i.e., frames with cropping, blending or patches are - * attempted to be indexed, JXL_ENC_ERROR will occur. + * attempted to be indexed, ::JXL_ENC_ERROR will occur. */ JXL_ENC_FRAME_INDEX_BOX = 31, - /** Sets brotli encode effort for use in JPEG recompression and compressed - * metadata boxes (brob). Can be -1 (default) or 0 (fastest) to 11 (slowest). - * Default is based on the general encode effort in case of JPEG + /** Sets brotli encode effort for use in JPEG recompression and + * compressed metadata boxes (brob). Can be -1 (default) or 0 (fastest) to 11 + * (slowest). Default is based on the general encode effort in case of JPEG * recompression, and 4 for brob boxes. */ JXL_ENC_FRAME_SETTING_BROTLI_EFFORT = 32, /** Enables or disables brotli compression of metadata boxes derived from - * a JPEG frame when using JxlEncoderAddJPEGFrame. This has no effect on boxes - * added using JxlEncoderAddBox. - * -1 = default, 0 = disable compression, 1 = enable compression. + * a JPEG frame when using @ref JxlEncoderAddJPEGFrame. This has no effect on + * boxes added using @ref JxlEncoderAddBox. -1 = default, 0 = disable + * compression, 1 = enable compression. */ JXL_ENC_FRAME_SETTING_JPEG_COMPRESS_BOXES = 33, /** Control what kind of buffering is used, when using chunked image frames. + * -1 = default (let the encoder decide) * 0 = buffers everything, basically the same as non-streamed code path (mainly for testing) * 1 = buffers everything for images that are smaller than 2048 x 2048, and @@ -351,30 +352,30 @@ typedef enum { * * When using streaming input and output the encoder minimizes memory usage at * the cost of compression density. Also note that images produced with - * streaming mode might can not be decoded progressively. + * streaming mode might not be progressively decodeable. */ JXL_ENC_FRAME_SETTING_BUFFERING = 34, /** Keep or discard Exif metadata boxes derived from a JPEG frame when using - * JxlEncoderAddJPEGFrame. This has no effect on boxes added using - * JxlEncoderAddBox. When JxlEncoderStoreJPEGMetadata is set to 1, this option - * cannot be set to 0. Even when Exif metadata is discarded, the orientation - * will still be applied. 0 = discard Exif metadata, 1 = keep Exif metadata - * (default). + * @ref JxlEncoderAddJPEGFrame. This has no effect on boxes added using + * @ref JxlEncoderAddBox. When @ref JxlEncoderStoreJPEGMetadata is set to 1, + * this option cannot be set to 0. Even when Exif metadata is discarded, the + * orientation will still be applied. 0 = discard Exif metadata, 1 = keep Exif + * metadata (default). */ JXL_ENC_FRAME_SETTING_JPEG_KEEP_EXIF = 35, /** Keep or discard XMP metadata boxes derived from a JPEG frame when using - * JxlEncoderAddJPEGFrame. This has no effect on boxes added using - * JxlEncoderAddBox. When JxlEncoderStoreJPEGMetadata is set to 1, this option - * cannot be set to 0. 0 = discard XMP metadata, 1 = keep XMP metadata - * (default). + * @ref JxlEncoderAddJPEGFrame. This has no effect on boxes added using + * @ref JxlEncoderAddBox. When @ref JxlEncoderStoreJPEGMetadata is set to 1, + * this option cannot be set to 0. 0 = discard XMP metadata, 1 = keep XMP + * metadata (default). */ JXL_ENC_FRAME_SETTING_JPEG_KEEP_XMP = 36, /** Keep or discard JUMBF metadata boxes derived from a JPEG frame when using - * JxlEncoderAddJPEGFrame. This has no effect on boxes added using - * JxlEncoderAddBox. 0 = discard JUMBF metadata, 1 = keep JUMBF metadata + * @ref JxlEncoderAddJPEGFrame. This has no effect on boxes added using + * @ref JxlEncoderAddBox. 0 = discard JUMBF metadata, 1 = keep JUMBF metadata * (default). */ JXL_ENC_FRAME_SETTING_JPEG_KEEP_JUMBF = 37, @@ -395,7 +396,7 @@ typedef enum { } JxlEncoderFrameSettingId; /** - * Creates an instance of JxlEncoder and initializes it. + * Creates an instance of @ref JxlEncoder and initializes it. * * @p memory_manager will be used for all the library dynamic allocations made * from this instance. The parameter may be NULL, in which case the default @@ -404,21 +405,21 @@ typedef enum { * @param memory_manager custom allocator function. It may be NULL. The memory * manager will be copied internally. * @return @c NULL if the instance can not be allocated or initialized - * @return pointer to initialized JxlEncoder otherwise + * @return pointer to initialized @ref JxlEncoder otherwise */ JXL_EXPORT JxlEncoder* JxlEncoderCreate(const JxlMemoryManager* memory_manager); /** - * Re-initializes a JxlEncoder instance, so it can be re-used for encoding + * Re-initializes a @ref JxlEncoder instance, so it can be re-used for encoding * another image. All state and settings are reset as if the object was - * newly created with JxlEncoderCreate, but the memory manager is kept. + * newly created with @ref JxlEncoderCreate, but the memory manager is kept. * * @param enc instance to be re-initialized. */ JXL_EXPORT void JxlEncoderReset(JxlEncoder* enc); /** - * Deinitializes and frees JxlEncoder instance. + * Deinitializes and frees a @ref JxlEncoder instance. * * @param enc instance to be cleaned up and deallocated. */ @@ -430,8 +431,8 @@ JXL_EXPORT void JxlEncoderDestroy(JxlEncoder* enc); * left unset, the default CMS implementation will be used. * * @param enc encoder object. - * @param cms structure representing a CMS implementation. See JxlCmsInterface - * for more details. + * @param cms structure representing a CMS implementation. See @ref + * JxlCmsInterface for more details. */ JXL_EXPORT void JxlEncoderSetCms(JxlEncoder* enc, JxlCmsInterface cms); @@ -444,7 +445,7 @@ JXL_EXPORT void JxlEncoderSetCms(JxlEncoder* enc, JxlCmsInterface cms); * be NULL to use the default, single-threaded, runner. A multithreaded * runner should be set to reach fast performance. * @param parallel_runner_opaque opaque pointer for parallel_runner. - * @return JXL_ENC_SUCCESS if the runner was set, JXL_ENC_ERROR + * @return ::JXL_ENC_SUCCESS if the runner was set, ::JXL_ENC_ERROR * otherwise (the previous runner remains set). */ JXL_EXPORT JxlEncoderStatus @@ -452,16 +453,16 @@ JxlEncoderSetParallelRunner(JxlEncoder* enc, JxlParallelRunner parallel_runner, void* parallel_runner_opaque); /** - * Get the (last) error code in case JXL_ENC_ERROR was returned. + * Get the (last) error code in case ::JXL_ENC_ERROR was returned. * * @param enc encoder object. - * @return the JxlEncoderError that caused the (last) JXL_ENC_ERROR to be - * returned. + * @return the @ref JxlEncoderError that caused the (last) ::JXL_ENC_ERROR to + * be returned. */ JXL_EXPORT JxlEncoderError JxlEncoderGetError(JxlEncoder* enc); /** - * Encodes JPEG XL file using the available bytes. @p *avail_out indicates how + * Encodes a JPEG XL file using the available bytes. @p *avail_out indicates how * many output bytes are available, and @p *next_out points to the input bytes. * *avail_out will be decremented by the amount of bytes that have been * processed by the encoder and *next_out will be incremented by the same @@ -469,12 +470,12 @@ JXL_EXPORT JxlEncoderError JxlEncoderGetError(JxlEncoder* enc); * bytes. * * The returned status indicates whether the encoder needs more output bytes. - * When the return value is not JXL_ENC_ERROR or JXL_ENC_SUCCESS, the encoding - * requires more JxlEncoderProcessOutput calls to continue. + * When the return value is not ::JXL_ENC_ERROR or ::JXL_ENC_SUCCESS, the + * encoding requires more @ref JxlEncoderProcessOutput calls to continue. * * The caller must guarantee that *avail_out >= 32 when calling - * JxlEncoderProcessOutput; otherwise, JXL_ENC_NEED_MORE_OUTPUT will be - * returned. It is guaranteed that, if *avail_out >= 32, at least one byte of + * @ref JxlEncoderProcessOutput; otherwise, ::JXL_ENC_NEED_MORE_OUTPUT will + * be returned. It is guaranteed that, if *avail_out >= 32, at least one byte of * output will be written. * * This encodes the frames and/or boxes added so far. If the last frame or last @@ -486,9 +487,9 @@ JXL_EXPORT JxlEncoderError JxlEncoderGetError(JxlEncoder* enc); * @param enc encoder object. * @param next_out pointer to next bytes to write to. * @param avail_out amount of bytes available starting from *next_out. - * @return JXL_ENC_SUCCESS when encoding finished and all events handled. - * @return JXL_ENC_ERROR when encoding failed, e.g. invalid input. - * @return JXL_ENC_NEED_MORE_OUTPUT more output buffer is necessary. + * @return ::JXL_ENC_SUCCESS when encoding finished and all events handled. + * @return ::JXL_ENC_ERROR when encoding failed, e.g. invalid input. + * @return ::JXL_ENC_NEED_MORE_OUTPUT more output buffer is necessary. */ JXL_EXPORT JxlEncoderStatus JxlEncoderProcessOutput(JxlEncoder* enc, uint8_t** next_out, @@ -509,13 +510,14 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderProcessOutput(JxlEncoder* enc, * time duration of 0, making them form a composite still. See @ref * JxlFrameHeader for more information. * - * This information is stored in the JxlEncoderFrameSettings and so is used for - * any frame encoded with these JxlEncoderFrameSettings. It is ok to change - * between @ref JxlEncoderAddImageFrame calls, each added image frame will have - * the frame header that was set in the options at the time of calling - * JxlEncoderAddImageFrame. + * This information is stored in the @ref JxlEncoderFrameSettings and so is used + * for any frame encoded with these @ref JxlEncoderFrameSettings. It is ok to + * change between @ref JxlEncoderAddImageFrame calls, each added image frame + * will have the frame header that was set in the options at the time of calling + * @ref JxlEncoderAddImageFrame. * - * The is_last and name_length fields of the JxlFrameHeader are ignored, use + * The is_last and name_length fields of the @ref JxlFrameHeader are ignored, + * use * @ref JxlEncoderCloseFrames to indicate last frame, and @ref * JxlEncoderSetFrameName to indicate the name and its length instead. * Calling this function will clear any name that was previously set with @ref @@ -525,7 +527,7 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderProcessOutput(JxlEncoder* enc, * includes reference to the encoder object. * @param frame_header frame header data to set. Object owned by the caller and * does not need to be kept in memory, its information is copied internally. - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameHeader(JxlEncoderFrameSettings* frame_settings, @@ -540,7 +542,7 @@ JxlEncoderSetFrameHeader(JxlEncoderFrameSettings* frame_settings, * includes reference to the encoder object. * @param index index of the extra channel to use. * @param blend_info blend info to set for the extra channel - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelBlendInfo( JxlEncoderFrameSettings* frame_settings, size_t index, @@ -550,8 +552,9 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelBlendInfo( * Sets the name of the animation frame. This function is optional, frames are * not required to have a name. This setting is a part of the frame header, and * the same principles as for @ref JxlEncoderSetFrameHeader apply. The - * name_length field of JxlFrameHeader is ignored by the encoder, this function - * determines the name length instead as the length in bytes of the C string. + * name_length field of @ref JxlFrameHeader is ignored by the encoder, this + * function determines the name length instead as the length in bytes of the C + * string. * * The maximum possible name length is 1071 bytes (excluding terminating null * character). @@ -563,7 +566,7 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelBlendInfo( * includes reference to the encoder object. * @param frame_name name of the next frame to be encoded, as a UTF-8 encoded C * string (zero terminated). Owned by the caller, and copied internally. - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameName( JxlEncoderFrameSettings* frame_settings, const char* frame_name); @@ -571,15 +574,17 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameName( /** * Sets the bit depth of the input buffer. * - * For float pixel formats, only the default JXL_BIT_DEPTH_FROM_PIXEL_FORMAT + * For float pixel formats, only the default @ref + JXL_BIT_DEPTH_FROM_PIXEL_FORMAT * setting is allowed, while for unsigned pixel formats, - * JXL_BIT_DEPTH_FROM_CODESTREAM setting is also allowed. See the comment on + * ::JXL_BIT_DEPTH_FROM_CODESTREAM setting is also allowed. See the comment + on * @ref JxlEncoderAddImageFrame for the effects of the bit depth setting. * @param frame_settings set of options and metadata for this frame. Also * includes reference to the encoder object. * @param bit_depth the bit depth setting of the pixel input - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameBitDepth( JxlEncoderFrameSettings* frame_settings, const JxlBitDepth* bit_depth); @@ -587,13 +592,13 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameBitDepth( /** * Sets the buffer to read JPEG encoded bytes from for the next frame to encode. * - * If JxlEncoderSetBasicInfo has not yet been called, calling - * JxlEncoderAddJPEGFrame will implicitly call it with the parameters of the - * added JPEG frame. + * If @ref JxlEncoderSetBasicInfo has not yet been called, calling + * @ref JxlEncoderAddJPEGFrame will implicitly call it with the parameters of + * the added JPEG frame. * - * If JxlEncoderSetColorEncoding or JxlEncoderSetICCProfile has not yet been - * called, calling JxlEncoderAddJPEGFrame will implicitly call it with the - * parameters of the added JPEG frame. + * If @ref JxlEncoderSetColorEncoding or @ref JxlEncoderSetICCProfile has not + * yet been called, calling @ref JxlEncoderAddJPEGFrame will implicitly call it + * with the parameters of the added JPEG frame. * * If the encoder is set to store JPEG reconstruction metadata using @ref * JxlEncoderStoreJPEGMetadata and a single JPEG frame is added, it will be @@ -603,12 +608,16 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameBitDepth( * JxlEncoderCloseFrames must be called before the next * @ref JxlEncoderProcessOutput call. * + * Note, this can only be used to add JPEG frames for lossless compression. To + * encode with lossy compression, the JPEG must be decoded manually and a pixel + * buffer added using JxlEncoderAddImageFrame. + * * @param frame_settings set of options and metadata for this frame. Also * includes reference to the encoder object. * @param buffer bytes to read JPEG from. Owned by the caller and its contents * are copied internally. * @param size size of buffer in bytes. - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error */ JXL_EXPORT JxlEncoderStatus JxlEncoderAddJPEGFrame(const JxlEncoderFrameSettings* frame_settings, @@ -616,33 +625,36 @@ JxlEncoderAddJPEGFrame(const JxlEncoderFrameSettings* frame_settings, /** * Sets the buffer to read pixels from for the next image to encode. Must call - * JxlEncoderSetBasicInfo before JxlEncoderAddImageFrame. + * @ref JxlEncoderSetBasicInfo before @ref JxlEncoderAddImageFrame. * * Currently only some data types for pixel formats are supported: - * - JXL_TYPE_UINT8, with range 0..255 - * - JXL_TYPE_UINT16, with range 0..65535 - * - JXL_TYPE_FLOAT16, with nominal range 0..1 - * - JXL_TYPE_FLOAT, with nominal range 0..1 + * - ::JXL_TYPE_UINT8, with range 0..255 + * - ::JXL_TYPE_UINT16, with range 0..65535 + * - ::JXL_TYPE_FLOAT16, with nominal range 0..1 + * - ::JXL_TYPE_FLOAT, with nominal range 0..1 * * Note: the sample data type in pixel_format is allowed to be different from - * what is described in the JxlBasicInfo. The type in pixel_format, together - * with an optional @ref JxlBitDepth parameter set by @ref + * what is described in the @ref JxlBasicInfo. The type in pixel_format, + * together with an optional @ref JxlBitDepth parameter set by @ref * JxlEncoderSetFrameBitDepth describes the format of the uncompressed pixel - * buffer. The bits_per_sample and exponent_bits_per_sample in the JxlBasicInfo - * describes what will actually be encoded in the JPEG XL codestream. - * For example, to encode a 12-bit image, you would set bits_per_sample to 12, - * while the input frame buffer can be in the following formats: - * - if pixel format is in JXL_TYPE_UINT16 with default bit depth setting - * (i.e. JXL_BIT_DEPTH_FROM_PIXEL_FORMAT), input sample values are rescaled - * to 16-bit, i.e. multiplied by 65535/4095; - * - if pixel format is in JXL_TYPE_UINT16 with JXL_BIT_DEPTH_FROM_CODESTREAM - * bit depth setting, input sample values are provided unscaled; - * - if pixel format is in JXL_TYPE_FLOAT, input sample values are rescaled - * to 0..1, i.e. multiplied by 1.f/4095.f. - * While it is allowed, it is obviously not recommended to use a pixel_format - * with lower precision than what is specified in the JxlBasicInfo. - * - * We support interleaved channels as described by the JxlPixelFormat: + * buffer. The bits_per_sample and exponent_bits_per_sample in the @ref + * JxlBasicInfo describes what will actually be encoded in the JPEG XL + * codestream. For example, to encode a 12-bit image, you would set + * bits_per_sample to 12, while the input frame buffer can be in the following + * formats: + * - if pixel format is in ::JXL_TYPE_UINT16 with default bit depth setting + * (i.e. ::JXL_BIT_DEPTH_FROM_PIXEL_FORMAT), input sample values are + * rescaled to 16-bit, i.e. multiplied by 65535/4095; + * - if pixel format is in ::JXL_TYPE_UINT16 with @ref + * JXL_BIT_DEPTH_FROM_CODESTREAM bit depth setting, input sample values are + * provided unscaled; + * - if pixel format is in ::JXL_TYPE_FLOAT, input sample values are + * rescaled to 0..1, i.e. multiplied by 1.f/4095.f. While it is allowed, it is + * obviously not recommended to use a pixel_format with lower precision than + * what is specified in the @ref JxlBasicInfo. + * + * We support interleaved channels as described by the @ref JxlPixelFormat + * "JxlPixelFormat": * - single-channel data, e.g. grayscale * - single-channel + alpha * - trichromatic, e.g. RGB @@ -654,10 +666,11 @@ JxlEncoderAddJPEGFrame(const JxlEncoderFrameSettings* frame_settings, * set to all-opaque (an alpha value of 1.0 everywhere). * * The pixels are assumed to be encoded in the original profile that is set with - * JxlEncoderSetColorEncoding or JxlEncoderSetICCProfile. If none of these - * functions were used, the pixels are assumed to be nonlinear sRGB for integer - * data types (JXL_TYPE_UINT8, JXL_TYPE_UINT16), and linear sRGB for floating - * point data types (JXL_TYPE_FLOAT16, JXL_TYPE_FLOAT). + * @ref JxlEncoderSetColorEncoding or @ref JxlEncoderSetICCProfile. If none of + * these functions were used, the pixels are assumed to be nonlinear sRGB for + * integer data types (::JXL_TYPE_UINT8, ::JXL_TYPE_UINT16), and linear + * sRGB for floating point data types (::JXL_TYPE_FLOAT16, @ref + * JXL_TYPE_FLOAT). * * Sample values in floating-point pixel formats are allowed to be outside the * nominal range, e.g. to represent out-of-sRGB-gamut colors in the @@ -676,14 +689,14 @@ JxlEncoderAddJPEGFrame(const JxlEncoderFrameSettings* frame_settings, * and its contents are copied internally. * @param size size of buffer in bytes. This size should match what is implied * by the frame dimensions and the pixel format. - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error */ JXL_EXPORT JxlEncoderStatus JxlEncoderAddImageFrame( const JxlEncoderFrameSettings* frame_settings, const JxlPixelFormat* pixel_format, const void* buffer, size_t size); /** - * The JxlEncoderOutputProcessor structure provides an interface for the + * The @ref JxlEncoderOutputProcessor structure provides an interface for the * encoder's output processing. Users of the library, who want to do streaming * encoding, should implement the required callbacks for buffering, writing, * seeking (if supported), and setting a finalized position during the encoding @@ -785,7 +798,7 @@ struct JxlEncoderOutputProcessor { * @param enc encoder object. * @param output_processor the struct containing the callbacks for managing * output. - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error. + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error. */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetOutputProcessor( JxlEncoder* enc, struct JxlEncoderOutputProcessor output_processor); @@ -801,7 +814,7 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetOutputProcessor( * This should not be used when using @ref JxlEncoderProcessOutput. * * @param enc encoder object. - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error. + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error. */ JXL_EXPORT JxlEncoderStatus JxlEncoderFlushInput(JxlEncoder* enc); @@ -923,9 +936,9 @@ struct JxlChunkedFrameInputSource { * chunked or streaming manner, which can be especially useful when dealing with * large images that may not fit entirely in memory or when trying to optimize * memory usage. The input data is provided through callbacks defined in the - * `JxlChunkedFrameInputSource` struct. Once the frame data has been completely - * retrieved, this function will flush the input and close it if it is the last - * frame. + * @ref JxlChunkedFrameInputSource struct. Once the frame data has been + * completely retrieved, this function will flush the input and close it if it + * is the last frame. * * @param frame_settings set of options and metadata for this frame. Also * includes reference to the encoder object. @@ -943,7 +956,7 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderAddChunkedFrame( /** * Sets the buffer to read pixels from for an extra channel at a given index. * The index must be smaller than the num_extra_channels in the associated - * JxlBasicInfo. Must call @ref JxlEncoderSetExtraChannelInfo before + * @ref JxlBasicInfo. Must call @ref JxlEncoderSetExtraChannelInfo before @ref * JxlEncoderSetExtraChannelBuffer. * * TODO(firsching): mention what data types in pixel formats are supported. @@ -961,15 +974,15 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderAddChunkedFrame( * @param size size of buffer in bytes. This size should match what is implied * by the frame dimensions and the pixel format. * @param index index of the extra channel to use. - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelBuffer( const JxlEncoderFrameSettings* frame_settings, const JxlPixelFormat* pixel_format, const void* buffer, size_t size, uint32_t index); -/** Adds a metadata box to the file format. JxlEncoderProcessOutput must be used - * to effectively write the box to the output. @ref JxlEncoderUseBoxes must +/** Adds a metadata box to the file format. @ref JxlEncoderProcessOutput must be + * used to effectively write the box to the output. @ref JxlEncoderUseBoxes must * be enabled before using this function. * * Boxes allow inserting application-specific data and metadata (Exif, XML/XMP, @@ -996,10 +1009,10 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelBuffer( * the encoder encodes the size header itself. Most boxes are written * automatically by the encoder as needed ("JXL ", "ftyp", "jxll", "jxlc", * "jxlp", "jxli", "jbrd"), and this function only needs to be called to add - * optional metadata when encoding from pixels (using JxlEncoderAddImageFrame). - * When recompressing JPEG files (using JxlEncoderAddJPEGFrame), if the input - * JPEG contains EXIF, XMP or JUMBF metadata, the corresponding boxes are - * already added automatically. + * optional metadata when encoding from pixels (using @ref + * JxlEncoderAddImageFrame). When recompressing JPEG files (using @ref + * JxlEncoderAddJPEGFrame), if the input JPEG contains EXIF, XMP or JUMBF + * metadata, the corresponding boxes are already added automatically. * * Box types are given by 4 characters. The following boxes can be added with * this function: @@ -1032,9 +1045,9 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelBuffer( * @param size size of the box contents. * @param compress_box Whether to compress this box as a "brob" box. Requires * Brotli support. - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error, such as when - * using this function without JxlEncoderUseContainer, or adding a box type - * that would result in an invalid file format. + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error, such as + * when using this function without @ref JxlEncoderUseContainer, or adding a box + * type that would result in an invalid file format. */ JXL_EXPORT JxlEncoderStatus JxlEncoderAddBox(JxlEncoder* enc, const JxlBoxType type, @@ -1061,9 +1074,9 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderUseBoxes(JxlEncoder* enc); * the stream will be finished. It is not necessary to use this function if * @ref JxlEncoderUseBoxes is not used. Further frames may still be added. * - * Must be called between JxlEncoderAddBox of the last box - * and the next call to JxlEncoderProcessOutput, or @ref JxlEncoderProcessOutput - * won't output the last box correctly. + * Must be called between @ref JxlEncoderAddBox of the last box + * and the next call to @ref JxlEncoderProcessOutput, or @ref + * JxlEncoderProcessOutput won't output the last box correctly. * * NOTE: if you don't need to close frames and boxes at separate times, you can * use @ref JxlEncoderCloseInput instead to close both at once. @@ -1087,10 +1100,10 @@ JXL_EXPORT void JxlEncoderCloseBoxes(JxlEncoder* enc); JXL_EXPORT void JxlEncoderCloseFrames(JxlEncoder* enc); /** - * Closes any input to the encoder, equivalent to calling JxlEncoderCloseFrames - * as well as calling JxlEncoderCloseBoxes if needed. No further input of any - * kind may be given to the encoder, but further @ref JxlEncoderProcessOutput - * calls should be done to create the final output. + * Closes any input to the encoder, equivalent to calling @ref + * JxlEncoderCloseFrames as well as calling @ref JxlEncoderCloseBoxes if needed. + * No further input of any kind may be given to the encoder, but further @ref + * JxlEncoderProcessOutput calls should be done to create the final output. * * The requirements of both @ref JxlEncoderCloseFrames and @ref * JxlEncoderCloseBoxes apply to this function. Either this function or the @@ -1104,39 +1117,39 @@ JXL_EXPORT void JxlEncoderCloseInput(JxlEncoder* enc); /** * Sets the original color encoding of the image encoded by this encoder. This - * is an alternative to JxlEncoderSetICCProfile and only one of these two must - * be used. This one sets the color encoding as a @ref JxlColorEncoding, while - * the other sets it as ICC binary data. - * Must be called after JxlEncoderSetBasicInfo. + * is an alternative to @ref JxlEncoderSetICCProfile and only one of these two + * must be used. This one sets the color encoding as a @ref JxlColorEncoding, + * while the other sets it as ICC binary data. Must be called after @ref + * JxlEncoderSetBasicInfo. * * @param enc encoder object. * @param color color encoding. Object owned by the caller and its contents are * copied internally. - * @return JXL_ENC_SUCCESS if the operation was successful, JXL_ENC_ERROR or - * JXL_ENC_NOT_SUPPORTED otherwise + * @return ::JXL_ENC_SUCCESS if the operation was successful, @ref + * JXL_ENC_ERROR otherwise */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetColorEncoding(JxlEncoder* enc, const JxlColorEncoding* color); /** * Sets the original color encoding of the image encoded by this encoder as an - * ICC color profile. This is an alternative to JxlEncoderSetColorEncoding and - * only one of these two must be used. This one sets the color encoding as ICC - * binary data, while the other defines it as a @ref JxlColorEncoding. - * Must be called after JxlEncoderSetBasicInfo. + * ICC color profile. This is an alternative to @ref JxlEncoderSetColorEncoding + * and only one of these two must be used. This one sets the color encoding as + * ICC binary data, while the other defines it as a @ref JxlColorEncoding. Must + * be called after @ref JxlEncoderSetBasicInfo. * * @param enc encoder object. * @param icc_profile bytes of the original ICC profile * @param size size of the icc_profile buffer in bytes - * @return JXL_ENC_SUCCESS if the operation was successful, JXL_ENC_ERROR or - * JXL_ENC_NOT_SUPPORTED otherwise + * @return ::JXL_ENC_SUCCESS if the operation was successful, @ref + * JXL_ENC_ERROR otherwise */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetICCProfile(JxlEncoder* enc, const uint8_t* icc_profile, size_t size); /** - * Initializes a JxlBasicInfo struct to default values. + * Initializes a @ref JxlBasicInfo struct to default values. * For forwards-compatibility, this function has to be called before values * are assigned to the struct fields. * The default values correspond to an 8-bit RGB image, no alpha or any @@ -1147,7 +1160,7 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetICCProfile(JxlEncoder* enc, JXL_EXPORT void JxlEncoderInitBasicInfo(JxlBasicInfo* info); /** - * Initializes a JxlFrameHeader struct to default values. + * Initializes a @ref JxlFrameHeader struct to default values. * For forwards-compatibility, this function has to be called before values * are assigned to the struct fields. * The default values correspond to a frame with no animation duration and the @@ -1159,7 +1172,7 @@ JXL_EXPORT void JxlEncoderInitBasicInfo(JxlBasicInfo* info); JXL_EXPORT void JxlEncoderInitFrameHeader(JxlFrameHeader* frame_header); /** - * Initializes a JxlBlendInfo struct to default values. + * Initializes a @ref JxlBlendInfo struct to default values. * For forwards-compatibility, this function has to be called before values * are assigned to the struct fields. * @@ -1170,26 +1183,26 @@ JXL_EXPORT void JxlEncoderInitBlendInfo(JxlBlendInfo* blend_info); /** * Sets the global metadata of the image encoded by this encoder. * - * If the JxlBasicInfo contains information of extra channels beyond an alpha - * channel, then @ref JxlEncoderSetExtraChannelInfo must be called between - * JxlEncoderSetBasicInfo and @ref JxlEncoderAddImageFrame. In order to indicate - * extra channels, the value of `info.num_extra_channels` should be set to the - * number of extra channels, also counting the alpha channel if present. + * If the @ref JxlBasicInfo contains information of extra channels beyond an + * alpha channel, then @ref JxlEncoderSetExtraChannelInfo must be called between + * @ref JxlEncoderSetBasicInfo and @ref JxlEncoderAddImageFrame. In order to + * indicate extra channels, the value of `info.num_extra_channels` should be set + * to the number of extra channels, also counting the alpha channel if present. * * @param enc encoder object. * @param info global image metadata. Object owned by the caller and its * contents are copied internally. - * @return JXL_ENC_SUCCESS if the operation was successful, - * JXL_ENC_ERROR or JXL_ENC_NOT_SUPPORTED otherwise + * @return ::JXL_ENC_SUCCESS if the operation was successful, + * ::JXL_ENC_ERROR otherwise */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetBasicInfo(JxlEncoder* enc, const JxlBasicInfo* info); /** * Sets the upsampling method the decoder will use in case there are frames - * with JXL_ENC_FRAME_SETTING_RESAMPLING set. This is useful in combination - * with the JXL_ENC_FRAME_SETTING_ALREADY_DOWNSAMPLED option, to control the - * type of upsampling that will be used. + * with ::JXL_ENC_FRAME_SETTING_RESAMPLING set. This is useful in combination + * with the ::JXL_ENC_FRAME_SETTING_ALREADY_DOWNSAMPLED option, to control + * the type of upsampling that will be used. * * @param enc encoder object. * @param factor upsampling factor to configure (1, 2, 4 or 8; for 1 this @@ -1198,15 +1211,15 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetBasicInfo(JxlEncoder* enc, * -1: default (good for photographic images, no signaling overhead) * 0: nearest neighbor (good for pixel art) * 1: 'pixel dots' (same as NN for 2x, diamond-shaped 'pixel dots' for 4x/8x) - * @return JXL_ENC_SUCCESS if the operation was successful, - * JXL_ENC_ERROR or JXL_ENC_NOT_SUPPORTED otherwise + * @return ::JXL_ENC_SUCCESS if the operation was successful, + * ::JXL_ENC_ERROR otherwise */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetUpsamplingMode(JxlEncoder* enc, int64_t factor, int64_t mode); /** - * Initializes a JxlExtraChannelInfo struct to default values. + * Initializes a @ref JxlExtraChannelInfo struct to default values. * For forwards-compatibility, this function has to be called before values * are assigned to the struct fields. * The default values correspond to an 8-bit channel of the provided type. @@ -1220,23 +1233,24 @@ JXL_EXPORT void JxlEncoderInitExtraChannelInfo(JxlExtraChannelType type, /** * Sets information for the extra channel at the given index. The index - * must be smaller than num_extra_channels in the associated JxlBasicInfo. + * must be smaller than num_extra_channels in the associated @ref JxlBasicInfo. * * @param enc encoder object * @param index index of the extra channel to set. * @param info global extra channel metadata. Object owned by the caller and its * contents are copied internally. - * @return JXL_ENC_SUCCESS on success, JXL_ENC_ERROR on error + * @return ::JXL_ENC_SUCCESS on success, ::JXL_ENC_ERROR on error */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelInfo( JxlEncoder* enc, size_t index, const JxlExtraChannelInfo* info); /** * Sets the name for the extra channel at the given index in UTF-8. The index - * must be smaller than the num_extra_channels in the associated JxlBasicInfo. + * must be smaller than the num_extra_channels in the associated @ref + * JxlBasicInfo. * * TODO(lode): remove size parameter for consistency with - * JxlEncoderSetFrameName + * @ref JxlEncoderSetFrameName * * @param enc encoder object * @param index index of the extra channel to set. @@ -1252,17 +1266,18 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelName(JxlEncoder* enc, /** * Sets a frame-specific option of integer type to the encoder options. - * The JxlEncoderFrameSettingId argument determines which option is set. + * The @ref JxlEncoderFrameSettingId argument determines which option is set. * * @param frame_settings set of options and metadata for this frame. Also * includes reference to the encoder object. * @param option ID of the option to set. * @param value Integer value to set for this option. - * @return JXL_ENC_SUCCESS if the operation was successful, JXL_ENC_ERROR in - * case of an error, such as invalid or unknown option id, or invalid integer - * value for the given option. If an error is returned, the state of the - * JxlEncoderFrameSettings object is still valid and is the same as before this - * function was called. + * @return ::JXL_ENC_SUCCESS if the operation was successful, @ref + * JXL_ENC_ERROR in case of an error, such as invalid or unknown option id, or + * invalid integer value for the given option. If an error is returned, the + * state of the + * @ref JxlEncoderFrameSettings object is still valid and is the same as before + * this function was called. */ JXL_EXPORT JxlEncoderStatus JxlEncoderFrameSettingsSetOption( JxlEncoderFrameSettings* frame_settings, JxlEncoderFrameSettingId option, @@ -1270,17 +1285,18 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderFrameSettingsSetOption( /** * Sets a frame-specific option of float type to the encoder options. - * The JxlEncoderFrameSettingId argument determines which option is set. + * The @ref JxlEncoderFrameSettingId argument determines which option is set. * * @param frame_settings set of options and metadata for this frame. Also * includes reference to the encoder object. * @param option ID of the option to set. * @param value Float value to set for this option. - * @return JXL_ENC_SUCCESS if the operation was successful, JXL_ENC_ERROR in - * case of an error, such as invalid or unknown option id, or invalid integer - * value for the given option. If an error is returned, the state of the - * JxlEncoderFrameSettings object is still valid and is the same as before this - * function was called. + * @return ::JXL_ENC_SUCCESS if the operation was successful, @ref + * JXL_ENC_ERROR in case of an error, such as invalid or unknown option id, or + * invalid integer value for the given option. If an error is returned, the + * state of the + * @ref JxlEncoderFrameSettings object is still valid and is the same as before + * this function was called. */ JXL_EXPORT JxlEncoderStatus JxlEncoderFrameSettingsSetFloatOption( JxlEncoderFrameSettings* frame_settings, JxlEncoderFrameSettingId option, @@ -1292,7 +1308,7 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderFrameSettingsSetFloatOption( * When using @ref JxlEncoderUseBoxes, @ref JxlEncoderStoreJPEGMetadata or @ref * JxlEncoderSetCodestreamLevel with level 10, the encoder will automatically * also use the container format, it is not necessary to use - * JxlEncoderUseContainer for those use cases. + * @ref JxlEncoderUseContainer for those use cases. * * By default this setting is disabled. * @@ -1318,8 +1334,8 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderUseContainer(JxlEncoder* enc, * * @param enc encoder object. * @param store_jpeg_metadata true if the encoder should store JPEG metadata. - * @return JXL_ENC_SUCCESS if the operation was successful, JXL_ENC_ERROR - * otherwise. + * @return ::JXL_ENC_SUCCESS if the operation was successful, @ref + * JXL_ENC_ERROR otherwise. */ JXL_EXPORT JxlEncoderStatus JxlEncoderStoreJPEGMetadata(JxlEncoder* enc, JXL_BOOL store_jpeg_metadata); @@ -1334,8 +1350,8 @@ JxlEncoderStoreJPEGMetadata(JxlEncoder* enc, JXL_BOOL store_jpeg_metadata); * 268435456 pixels total with a maximum width or height of 262144 pixels, * maximum 16-bit color channel depth, maximum 120 frames per second for * animation, maximum ICC color profile size of 4 MiB, it allows all color - * models and extra channel types except CMYK and the JXL_CHANNEL_BLACK extra - * channel, and a maximum of 4 extra channels in addition to the 3 color + * models and extra channel types except CMYK and the JXL_CHANNEL_BLACK + * extra channel, and a maximum of 4 extra channels in addition to the 3 color * channels. It also sets boundaries to certain internally used coding tools. * * Level 10: this level removes or increases the bounds of most of the level @@ -1355,8 +1371,8 @@ JxlEncoderStoreJPEGMetadata(JxlEncoder* enc, JXL_BOOL store_jpeg_metadata); * * @param enc encoder object. * @param level the level value to set, must be -1, 5, or 10. - * @return JXL_ENC_SUCCESS if the operation was successful, JXL_ENC_ERROR - * otherwise. + * @return ::JXL_ENC_SUCCESS if the operation was successful, @ref + * JXL_ENC_ERROR otherwise. */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetCodestreamLevel(JxlEncoder* enc, int level); @@ -1370,9 +1386,10 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetCodestreamLevel(JxlEncoder* enc, * the JPEG XL file. * * If this returns 5, nothing needs to be done and the codestream can be - * compatible with any decoder. If this returns 10, JxlEncoderSetCodestreamLevel - * has to be used to set the codestream level to 10, or the encoder can be - * configured differently to allow using the more compatible level 5. + * compatible with any decoder. If this returns 10, @ref + * JxlEncoderSetCodestreamLevel has to be used to set the codestream level to + * 10, or the encoder can be configured differently to allow using the more + * compatible level 5. * * @param enc encoder object. * @return -1 if no level can support the configuration (e.g. image dimensions @@ -1391,14 +1408,14 @@ JXL_EXPORT int JxlEncoderGetRequiredCodestreamLevel(const JxlEncoder* enc); * * When disabled, those options are not overridden, but since those options * could still have been manually set to a combination that operates losslessly, - * using this function with lossless set to JXL_DEC_FALSE does not guarantee - * lossy encoding, though the default set of options is lossy. + * using this function with lossless set to ::JXL_FALSE does not + * guarantee lossy encoding, though the default set of options is lossy. * * @param frame_settings set of options and metadata for this frame. Also * includes reference to the encoder object. * @param lossless whether to override options for lossless mode - * @return JXL_ENC_SUCCESS if the operation was successful, JXL_ENC_ERROR - * otherwise. + * @return ::JXL_ENC_SUCCESS if the operation was successful, @ref + * JXL_ENC_ERROR otherwise. */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameLossless( JxlEncoderFrameSettings* frame_settings, JXL_BOOL lossless); @@ -1406,7 +1423,7 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameLossless( /** * Sets the distance level for lossy compression: target max butteraugli * distance, lower = higher quality. Range: 0 .. 25. - * 0.0 = mathematically lossless (however, use JxlEncoderSetFrameLossless + * 0.0 = mathematically lossless (however, use @ref JxlEncoderSetFrameLossless * instead to use true lossless, as setting distance to 0 alone is not the only * requirement). 1.0 = visually lossless. Recommended range: 0.5 .. 3.0. Default * value: 1.0. @@ -1414,24 +1431,25 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameLossless( * @param frame_settings set of options and metadata for this frame. Also * includes reference to the encoder object. * @param distance the distance value to set. - * @return JXL_ENC_SUCCESS if the operation was successful, JXL_ENC_ERROR - * otherwise. + * @return ::JXL_ENC_SUCCESS if the operation was successful, @ref + * JXL_ENC_ERROR otherwise. */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameDistance( JxlEncoderFrameSettings* frame_settings, float distance); /** * Sets the distance level for lossy compression of extra channels. - * The distance is as in JxlEncoderSetFrameDistance (lower = higher quality). - * If not set, or if set to the special value -1, the distance that was set with - * JxlEncoderSetFrameDistance will be used. + * The distance is as in @ref JxlEncoderSetFrameDistance (lower = higher + * quality). If not set, or if set to the special value -1, the distance that + * was set with + * @ref JxlEncoderSetFrameDistance will be used. * * @param frame_settings set of options and metadata for this frame. Also * includes reference to the encoder object. * @param index index of the extra channel to set a distance value for. * @param distance the distance value to set. - * @return JXL_ENC_SUCCESS if the operation was successful, JXL_ENC_ERROR - * otherwise. + * @return ::JXL_ENC_SUCCESS if the operation was successful, @ref + * JXL_ENC_ERROR otherwise. */ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelDistance( JxlEncoderFrameSettings* frame_settings, size_t index, float distance); @@ -1441,8 +1459,7 @@ JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelDistance( * * This function takes in input a JPEG-style quality factor `quality` and * produces as output a `distance` value suitable to be used with @ref - * JxlEncoderSetFrameDistance and - * @ref JxlEncoderSetExtraChannelDistance. + * JxlEncoderSetFrameDistance and @ref JxlEncoderSetExtraChannelDistance. * * The `distance` value influences the level of compression, with lower values * indicating higher quality: @@ -1479,10 +1496,10 @@ JXL_EXPORT float JxlEncoderDistanceFromQuality(float quality); * the @p source options, or set to default if @p source is NULL. * * The returned pointer is an opaque struct tied to the encoder and it will be - * deallocated by the encoder when JxlEncoderDestroy() is called. For functions - * taking both a @ref JxlEncoder and a @ref JxlEncoderFrameSettings, only - * JxlEncoderFrameSettings created with this function for the same encoder - * instance can be used. + * deallocated by the encoder when @ref JxlEncoderDestroy() is called. For + * functions taking both a @ref JxlEncoder and a @ref JxlEncoderFrameSettings, + * only @ref JxlEncoderFrameSettings created with this function for the same + * encoder instance can be used. * * @param enc encoder object. * @param source source options to copy initial values from, or NULL to get @@ -1513,7 +1530,7 @@ JXL_EXPORT void JxlColorEncodingSetToLinearSRGB( /** * Enables usage of expert options. * - * At the moment, the only expert option is setting an effort value of 10, + * At the moment, the only expert option is setting an effort value of 11, * which gives the best compression for pixel-lossless modes but is very slow. * * @param enc encoder object. |