FFmpeg
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#include "libavutil/csp.h"
#include "libavutil/frame.h"
#include "libavutil/pixfmt.h"
#include <lcms2.h>
Go to the source code of this file.
Data Structures | |
struct | FFIccContext |
Functions | |
int | ff_icc_context_init (FFIccContext *s, void *avctx) |
Initializes an FFIccContext. More... | |
void | ff_icc_context_uninit (FFIccContext *s) |
int | ff_icc_profile_generate (FFIccContext *s, enum AVColorPrimaries color_prim, enum AVColorTransferCharacteristic color_trc, cmsHPROFILE *out_profile) |
Generate an ICC profile for a given combination of color primaries and transfer function. More... | |
int | ff_icc_profile_attach (FFIccContext *s, cmsHPROFILE profile, AVFrame *frame) |
Attach an ICC profile to a frame. More... | |
int | ff_icc_profile_sanitize (FFIccContext *s, cmsHPROFILE profile) |
Sanitize an ICC profile to try and fix badly broken values. More... | |
int | ff_icc_profile_read_primaries (FFIccContext *s, cmsHPROFILE profile, AVColorPrimariesDesc *out_primaries) |
Read the color primaries and white point coefficients encoded by an ICC profile, and return the raw values in out_primaries . More... | |
int | ff_icc_profile_detect_transfer (FFIccContext *s, cmsHPROFILE profile, enum AVColorTransferCharacteristic *out_trc) |
Attempt detecting the transfer characteristic that best approximates the transfer function encoded by an ICC profile. More... | |
Various functions for dealing with ICC profiles
Definition in file fflcms2.h.
int ff_icc_context_init | ( | FFIccContext * | s, |
void * | avctx | ||
) |
Initializes an FFIccContext.
This must be done prior to using it.
Returns 0 on success, or a negative error code.
Definition at line 30 of file fflcms2.c.
Referenced by iccdetect_init(), and iccgen_init().
void ff_icc_context_uninit | ( | FFIccContext * | s | ) |
Definition at line 42 of file fflcms2.c.
Referenced by avcodec_close(), iccdetect_uninit(), and iccgen_uninit().
int ff_icc_profile_generate | ( | FFIccContext * | s, |
enum AVColorPrimaries | color_prim, | ||
enum AVColorTransferCharacteristic | color_trc, | ||
cmsHPROFILE * | out_profile | ||
) |
Generate an ICC profile for a given combination of color primaries and transfer function.
Both values must be set to valid entries (not "undefined") for this function to work.
Returns 0 on success, or a negative error code.
Definition at line 145 of file fflcms2.c.
Referenced by iccgen_filter_frame().
int ff_icc_profile_attach | ( | FFIccContext * | s, |
cmsHPROFILE | profile, | ||
AVFrame * | frame | ||
) |
Attach an ICC profile to a frame.
Helper wrapper around cmsSaveProfileToMem and av_frame_new_side_data_from_buf.
Returns 0 on success, or a negative error code.
Definition at line 172 of file fflcms2.c.
Referenced by iccgen_filter_frame().
int ff_icc_profile_sanitize | ( | FFIccContext * | s, |
cmsHPROFILE | profile | ||
) |
Sanitize an ICC profile to try and fix badly broken values.
Returns 0 on success, or a negative error code.
Definition at line 213 of file fflcms2.c.
Referenced by iccdetect_filter_frame().
int ff_icc_profile_read_primaries | ( | FFIccContext * | s, |
cmsHPROFILE | profile, | ||
AVColorPrimariesDesc * | out_primaries | ||
) |
Read the color primaries and white point coefficients encoded by an ICC profile, and return the raw values in out_primaries
.
Returns 0 on success, or a negative error code.
Definition at line 255 of file fflcms2.c.
Referenced by iccdetect_filter_frame().
int ff_icc_profile_detect_transfer | ( | FFIccContext * | s, |
cmsHPROFILE | profile, | ||
enum AVColorTransferCharacteristic * | out_trc | ||
) |
Attempt detecting the transfer characteristic that best approximates the transfer function encoded by an ICC profile.
Sets out_trc
to AVCOL_TRC_UNSPECIFIED if no clear match can be identified.
Returns 0 on success (including no match), or a negative error code.
Definition at line 302 of file fflcms2.c.
Referenced by iccdetect_filter_frame().