encode.h

Go to the documentation of this file.

/* Copyright (c) the JPEG XL Project Authors. All rights reserved.
 *
 * Use of this source code is governed by a BSD-style
 * license that can be found in the LICENSE file.
 */

 
#ifndef JXL_ENCODE_H_
#define JXL_ENCODE_H_
 
#include <jxl/cms_interface.h>
#include <jxl/codestream_header.h>
#include <jxl/color_encoding.h>
#include <jxl/jxl_export.h>
#include <jxl/memory_manager.h>
#include <jxl/parallel_runner.h>
#include <jxl/stats.h>
#include <jxl/types.h>
#include <jxl/version.h>  // TODO(eustas): remove before v1.0
#include <stddef.h>
#include <stdint.h>
 
#ifdef __cplusplus
extern "C" {
#endif

JXL_EXPORT uint32_t JxlEncoderVersion(void);

typedef struct JxlEncoder JxlEncoder;

typedef struct JxlEncoderFrameSettings JxlEncoderFrameSettings;

typedef enum {
  JXL_ENC_SUCCESS = 0,

  JXL_ENC_ERROR = 1,

  JXL_ENC_NEED_MORE_OUTPUT = 2,
 
} JxlEncoderStatus;

typedef enum {
  JXL_ENC_ERR_OK = 0,

  JXL_ENC_ERR_GENERIC = 1,

  JXL_ENC_ERR_OOM = 2,

  JXL_ENC_ERR_JBRD = 3,

  JXL_ENC_ERR_BAD_INPUT = 4,

  JXL_ENC_ERR_NOT_SUPPORTED = 0x80,

  JXL_ENC_ERR_API_USAGE = 0x81,
 
} JxlEncoderError;

typedef enum {
  JXL_ENC_FRAME_SETTING_EFFORT = 0,

  JXL_ENC_FRAME_SETTING_DECODING_SPEED = 1,

  JXL_ENC_FRAME_SETTING_RESAMPLING = 2,

  JXL_ENC_FRAME_SETTING_EXTRA_CHANNEL_RESAMPLING = 3,

  JXL_ENC_FRAME_SETTING_ALREADY_DOWNSAMPLED = 4,

  JXL_ENC_FRAME_SETTING_PHOTON_NOISE = 5,

  JXL_ENC_FRAME_SETTING_NOISE = 6,

  JXL_ENC_FRAME_SETTING_DOTS = 7,

  JXL_ENC_FRAME_SETTING_PATCHES = 8,

  JXL_ENC_FRAME_SETTING_EPF = 9,

  JXL_ENC_FRAME_SETTING_GABORISH = 10,

  JXL_ENC_FRAME_SETTING_MODULAR = 11,

  JXL_ENC_FRAME_SETTING_KEEP_INVISIBLE = 12,

  JXL_ENC_FRAME_SETTING_GROUP_ORDER = 13,

  JXL_ENC_FRAME_SETTING_GROUP_ORDER_CENTER_X = 14,

  JXL_ENC_FRAME_SETTING_GROUP_ORDER_CENTER_Y = 15,

  JXL_ENC_FRAME_SETTING_RESPONSIVE = 16,

  JXL_ENC_FRAME_SETTING_PROGRESSIVE_AC = 17,

  JXL_ENC_FRAME_SETTING_QPROGRESSIVE_AC = 18,

  JXL_ENC_FRAME_SETTING_PROGRESSIVE_DC = 19,

  JXL_ENC_FRAME_SETTING_CHANNEL_COLORS_GLOBAL_PERCENT = 20,

  JXL_ENC_FRAME_SETTING_CHANNEL_COLORS_GROUP_PERCENT = 21,

  JXL_ENC_FRAME_SETTING_PALETTE_COLORS = 22,

  JXL_ENC_FRAME_SETTING_LOSSY_PALETTE = 23,

  JXL_ENC_FRAME_SETTING_COLOR_TRANSFORM = 24,

  JXL_ENC_FRAME_SETTING_MODULAR_COLOR_SPACE = 25,

  JXL_ENC_FRAME_SETTING_MODULAR_GROUP_SIZE = 26,

  JXL_ENC_FRAME_SETTING_MODULAR_PREDICTOR = 27,

  JXL_ENC_FRAME_SETTING_MODULAR_MA_TREE_LEARNING_PERCENT = 28,

  JXL_ENC_FRAME_SETTING_MODULAR_NB_PREV_CHANNELS = 29,

  JXL_ENC_FRAME_SETTING_JPEG_RECON_CFL = 30,

  JXL_ENC_FRAME_INDEX_BOX = 31,

  JXL_ENC_FRAME_SETTING_BROTLI_EFFORT = 32,

  JXL_ENC_FRAME_SETTING_JPEG_COMPRESS_BOXES = 33,

  JXL_ENC_FRAME_SETTING_BUFFERING = 34,

  JXL_ENC_FRAME_SETTING_JPEG_KEEP_EXIF = 35,

  JXL_ENC_FRAME_SETTING_JPEG_KEEP_XMP = 36,

  JXL_ENC_FRAME_SETTING_JPEG_KEEP_JUMBF = 37,

  JXL_ENC_FRAME_SETTING_USE_FULL_IMAGE_HEURISTICS = 38,

  JXL_ENC_FRAME_SETTING_DISABLE_PERCEPTUAL_HEURISTICS = 39,

  JXL_ENC_FRAME_SETTING_FILL_ENUM = 65535,
 
} JxlEncoderFrameSettingId;

JXL_EXPORT JxlEncoder* JxlEncoderCreate(const JxlMemoryManager* memory_manager);

JXL_EXPORT void JxlEncoderReset(JxlEncoder* enc);

JXL_EXPORT void JxlEncoderDestroy(JxlEncoder* enc);

JXL_EXPORT void JxlEncoderSetCms(JxlEncoder* enc, JxlCmsInterface cms);

JXL_EXPORT JxlEncoderStatus
JxlEncoderSetParallelRunner(JxlEncoder* enc, JxlParallelRunner parallel_runner,
                            void* parallel_runner_opaque);

JXL_EXPORT JxlEncoderError JxlEncoderGetError(JxlEncoder* enc);

JXL_EXPORT JxlEncoderStatus JxlEncoderProcessOutput(JxlEncoder* enc,
                                                    uint8_t** next_out,
                                                    size_t* avail_out);

JXL_EXPORT JxlEncoderStatus
JxlEncoderSetFrameHeader(JxlEncoderFrameSettings* frame_settings,
                         const JxlFrameHeader* frame_header);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelBlendInfo(
    JxlEncoderFrameSettings* frame_settings, size_t index,
    const JxlBlendInfo* blend_info);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameName(
    JxlEncoderFrameSettings* frame_settings, const char* frame_name);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameBitDepth(
    JxlEncoderFrameSettings* frame_settings, const JxlBitDepth* bit_depth);

JXL_EXPORT JxlEncoderStatus
JxlEncoderAddJPEGFrame(const JxlEncoderFrameSettings* frame_settings,
                       const uint8_t* buffer, size_t size);

JXL_EXPORT JxlEncoderStatus JxlEncoderAddImageFrame(
    const JxlEncoderFrameSettings* frame_settings,
    const JxlPixelFormat* pixel_format, const void* buffer, size_t size);

struct JxlEncoderOutputProcessor {
  void* opaque;

  void* (*get_buffer)(void* opaque, size_t* size);

  void (*release_buffer)(void* opaque, size_t written_bytes);

  void (*seek)(void* opaque, uint64_t position);

  void (*set_finalized_position)(void* opaque, uint64_t finalized_position);
};

JXL_EXPORT JxlEncoderStatus JxlEncoderSetOutputProcessor(
    JxlEncoder* enc, struct JxlEncoderOutputProcessor output_processor);

JXL_EXPORT JxlEncoderStatus JxlEncoderFlushInput(JxlEncoder* enc);

struct JxlChunkedFrameInputSource {
  void* opaque;

  void (*get_color_channels_pixel_format)(void* opaque,
                                          JxlPixelFormat* pixel_format);

  const void* (*get_color_channel_data_at)(void* opaque, size_t xpos,
                                           size_t ypos, size_t xsize,
                                           size_t ysize, size_t* row_offset);

  void (*get_extra_channel_pixel_format)(void* opaque, size_t ec_index,
                                         JxlPixelFormat* pixel_format);

  const void* (*get_extra_channel_data_at)(void* opaque, size_t ec_index,
                                           size_t xpos, size_t ypos,
                                           size_t xsize, size_t ysize,
                                           size_t* row_offset);

  void (*release_buffer)(void* opaque, const void* buf);
};

JXL_EXPORT JxlEncoderStatus JxlEncoderAddChunkedFrame(
    const JxlEncoderFrameSettings* frame_settings, JXL_BOOL is_last_frame,
    struct JxlChunkedFrameInputSource chunked_frame_input);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelBuffer(
    const JxlEncoderFrameSettings* frame_settings,
    const JxlPixelFormat* pixel_format, const void* buffer, size_t size,
    uint32_t index);

JXL_EXPORT JxlEncoderStatus JxlEncoderAddBox(JxlEncoder* enc,
                                             const JxlBoxType type,
                                             const uint8_t* contents,
                                             size_t size,
                                             JXL_BOOL compress_box);

JXL_EXPORT JxlEncoderStatus JxlEncoderUseBoxes(JxlEncoder* enc);

JXL_EXPORT void JxlEncoderCloseBoxes(JxlEncoder* enc);

JXL_EXPORT void JxlEncoderCloseFrames(JxlEncoder* enc);

JXL_EXPORT void JxlEncoderCloseInput(JxlEncoder* enc);

JXL_EXPORT JxlEncoderStatus
JxlEncoderSetColorEncoding(JxlEncoder* enc, const JxlColorEncoding* color);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetICCProfile(JxlEncoder* enc,
                                                    const uint8_t* icc_profile,
                                                    size_t size);

JXL_EXPORT void JxlEncoderInitBasicInfo(JxlBasicInfo* info);

JXL_EXPORT void JxlEncoderInitFrameHeader(JxlFrameHeader* frame_header);

JXL_EXPORT void JxlEncoderInitBlendInfo(JxlBlendInfo* blend_info);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetBasicInfo(JxlEncoder* enc,
                                                   const JxlBasicInfo* info);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetUpsamplingMode(JxlEncoder* enc,
                                                        int64_t factor,
                                                        int64_t mode);

JXL_EXPORT void JxlEncoderInitExtraChannelInfo(JxlExtraChannelType type,
                                               JxlExtraChannelInfo* info);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelInfo(
    JxlEncoder* enc, size_t index, const JxlExtraChannelInfo* info);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelName(JxlEncoder* enc,
                                                          size_t index,
                                                          const char* name,
                                                          size_t size);

JXL_EXPORT JxlEncoderStatus JxlEncoderFrameSettingsSetOption(
    JxlEncoderFrameSettings* frame_settings, JxlEncoderFrameSettingId option,
    int64_t value);

JXL_EXPORT JxlEncoderStatus JxlEncoderFrameSettingsSetFloatOption(
    JxlEncoderFrameSettings* frame_settings, JxlEncoderFrameSettingId option,
    float value);

JXL_EXPORT JxlEncoderStatus JxlEncoderUseContainer(JxlEncoder* enc,
                                                   JXL_BOOL use_container);

JXL_EXPORT JxlEncoderStatus
JxlEncoderStoreJPEGMetadata(JxlEncoder* enc, JXL_BOOL store_jpeg_metadata);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetCodestreamLevel(JxlEncoder* enc,
                                                         int level);

JXL_EXPORT int JxlEncoderGetRequiredCodestreamLevel(const JxlEncoder* enc);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameLossless(
    JxlEncoderFrameSettings* frame_settings, JXL_BOOL lossless);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetFrameDistance(
    JxlEncoderFrameSettings* frame_settings, float distance);

JXL_EXPORT JxlEncoderStatus JxlEncoderSetExtraChannelDistance(
    JxlEncoderFrameSettings* frame_settings, size_t index, float distance);

JXL_EXPORT float JxlEncoderDistanceFromQuality(float quality);

JXL_EXPORT JxlEncoderFrameSettings* JxlEncoderFrameSettingsCreate(
    JxlEncoder* enc, const JxlEncoderFrameSettings* source);

JXL_EXPORT void JxlColorEncodingSetToSRGB(JxlColorEncoding* color_encoding,
                                          JXL_BOOL is_gray);

JXL_EXPORT void JxlColorEncodingSetToLinearSRGB(
    JxlColorEncoding* color_encoding, JXL_BOOL is_gray);

JXL_EXPORT void JxlEncoderAllowExpertOptions(JxlEncoder* enc);

typedef void (*JxlDebugImageCallback)(void* opaque, const char* label,
                                      size_t xsize, size_t ysize,
                                      const JxlColorEncoding* color,
                                      const uint16_t* pixels);

JXL_EXPORT void JxlEncoderSetDebugImageCallback(
    JxlEncoderFrameSettings* frame_settings, JxlDebugImageCallback callback,
    void* opaque);

JXL_EXPORT void JxlEncoderCollectStats(JxlEncoderFrameSettings* frame_settings,
                                       JxlEncoderStats* stats);
 
#ifdef __cplusplus
}
#endif
 
#endif /* JXL_ENCODE_H_ */