#include "libavutil/opt.h"
#include "libavutil/bprint.h"
#include "libavutil/eval.h"
#include "libavutil/file.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/avassert.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Data Structures
struct	keypoint

struct	CurvesContext

struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	R 0

#define	G 1

#define	B 2

#define	A 3

#define	NB_COMP 3

#define	OFFSET(x) offsetof(CurvesContext, x)

#define	FLAGS AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_VIDEO_PARAM

#define	CLIP(v) (nbits == 8 ? av_clip_uint8(v) : av_clip_uintp2_c(v, nbits))
	Natural cubic spline interpolation Finding curves using Cubic Splines notes by Steven Rauch and John Stockie. More...

#define	BD 0 /* sub diagonal (below main) */

#define	MD 1 /* main diagonal (center) */

#define	AD 2 /* sup diagonal (above main) */

#define	DECLARE_INTERPOLATE_FUNC(nbits)

#define	READ16(dst)

#define	SET_COMP_IF_NOT_SET(n, name)

Enumerations
enum	preset { PRESET_NONE, PRESET_COLOR_NEGATIVE, PRESET_CROSS_PROCESS, PRESET_DARKER, PRESET_INCREASE_CONTRAST, PRESET_LIGHTER, PRESET_LINEAR_CONTRAST, PRESET_MEDIUM_CONTRAST, PRESET_NEGATIVE, PRESET_STRONG_CONTRAST, PRESET_VINTAGE, NB_PRESETS }

Functions
	AVFILTER_DEFINE_CLASS (curves)

static struct keypoint *	make_point (double x, double y, struct keypoint *next)

static int	parse_points_str (AVFilterContext ctx, struct keypoint points, const char s, int lut_size)

static int	get_nb_points (const struct keypoint *d)

static int	interpolate (void log_ctx, uint16_t y, const struct keypoint *points, int nbits)

static int	parse_psfile (AVFilterContext ctx, const char fname)

static int	dump_curves (const char fname, uint16_t graph[NB_COMP+1], struct keypoint *comp_points[NB_COMP+1], int lut_size)

static av_cold int	curves_init (AVFilterContext *ctx)

static int	query_formats (AVFilterContext *ctx)

static int	filter_slice_packed (AVFilterContext ctx, void arg, int jobnr, int nb_jobs)

static int	filter_slice_planar (AVFilterContext ctx, void arg, int jobnr, int nb_jobs)

static int	config_input (AVFilterLink *inlink)

static int	filter_frame (AVFilterLink inlink, AVFrame in)

static av_cold void	curves_uninit (AVFilterContext *ctx)

Variables
static const AVOption	curves_options []

struct {
const char * r

const char * g

const char * b

const char * master

}	curves_presets []

static const AVFilterPad	curves_inputs []

static const AVFilterPad	curves_outputs []

AVFilter	ff_vf_curves

Macro Definition Documentation

◆ R

#define R 0

Definition at line 34 of file vf_curves.c.

◆ G

#define G 1

Definition at line 35 of file vf_curves.c.

◆ B

#define B 2

Definition at line 36 of file vf_curves.c.

◆ A

#define A 3

Definition at line 37 of file vf_curves.c.

◆ NB_COMP

#define NB_COMP 3

Definition at line 44 of file vf_curves.c.

◆ OFFSET

#define OFFSET ( x ) offsetof(CurvesContext, x)

Definition at line 82 of file vf_curves.c.

◆ FLAGS

#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 83 of file vf_curves.c.

◆ CLIP

#define CLIP ( v ) (nbits == 8 ? av_clip_uint8(v) : av_clip_uintp2_c(v, nbits))

Natural cubic spline interpolation Finding curves using Cubic Splines notes by Steven Rauch and John Stockie.

See also: http://people.math.sfu.ca/~stockie/teaching/macm316/notes/splines.pdf

Definition at line 215 of file vf_curves.c.

◆ BD

#define BD 0 /* sub diagonal (below main) */

◆ MD

#define MD 1 /* main diagonal (center) */

◆ AD

#define AD 2 /* sup diagonal (above main) */

◆ DECLARE_INTERPOLATE_FUNC

#define DECLARE_INTERPOLATE_FUNC ( nbits )

Value:

static int interpolate##nbits(void *log_ctx, uint16_t *y,                   \
                              const struct keypoint *points)                \
{                                                                           \
    return interpolate(log_ctx, y, points, nbits);                          \
}

Definition at line 339 of file vf_curves.c.

◆ READ16

#define READ16 ( dst )

Value:

    do {                \
    if (size < 2) {                     \
        ret = AVERROR_INVALIDDATA;      \
        goto end;                       \
    }                                   \
    dst = AV_RB16(buf);                 \
    buf  += 2;                          \
    size -= 2;                          \
} while (0)

◆ SET_COMP_IF_NOT_SET

#define SET_COMP_IF_NOT_SET	(	n,
		name
	)

Value:

    do {                           \
    if (!pts[n] && curves_presets[curves->preset].name) {           \
        pts[n] = av_strdup(curves_presets[curves->preset].name);    \
        if (!pts[n])                                                \
            return AVERROR(ENOMEM);                                 \
    }                                                               \
} while (0)

Enumeration Type Documentation

◆ preset

enum preset

Enumerator
PRESET_NONE
PRESET_COLOR_NEGATIVE
PRESET_CROSS_PROCESS
PRESET_DARKER
PRESET_INCREASE_CONTRAST
PRESET_LIGHTER
PRESET_LINEAR_CONTRAST
PRESET_MEDIUM_CONTRAST
PRESET_NEGATIVE
PRESET_STRONG_CONTRAST
PRESET_VINTAGE
NB_PRESETS

Definition at line 46 of file vf_curves.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( curves )

◆ make_point()

static struct keypoint* make_point	(	double	x,
		double	y,
		struct keypoint *	next
	)

static

Definition at line 143 of file vf_curves.c.

Referenced by parse_points_str().

◆ parse_points_str()

static int parse_points_str	(	AVFilterContext *	ctx,
		struct keypoint **	points,
		const char *	s,
		int	lut_size
	)

static

Definition at line 155 of file vf_curves.c.

Referenced by config_input().

◆ get_nb_points()

static int get_nb_points ( const struct keypoint * d )

static

Definition at line 199 of file vf_curves.c.

Referenced by interpolate().

◆ interpolate()

static int interpolate	(	void *	log_ctx,
		uint16_t *	y,
		const struct keypoint *	points,
		int	nbits
	)

inlinestatic

Definition at line 217 of file vf_curves.c.

◆ parse_psfile()

static int parse_psfile	(	AVFilterContext *	ctx,
		const char *	fname
	)

static

Definition at line 353 of file vf_curves.c.

Referenced by curves_init().

◆ dump_curves()

static int dump_curves	(	const char *	fname,
		uint16_t *	graph[NB_COMP+1],
		struct keypoint *	comp_points[NB_COMP+1],
		int	lut_size
	)

static

Definition at line 409 of file vf_curves.c.

Referenced by config_input().

◆ curves_init()

static av_cold int curves_init ( AVFilterContext * ctx )

static

Definition at line 470 of file vf_curves.c.

◆ query_formats()

static int query_formats ( AVFilterContext * ctx )

static

Definition at line 512 of file vf_curves.c.

◆ filter_slice_packed()

static int filter_slice_packed	(	AVFilterContext *	ctx,
		void *	arg,
		int	jobnr,
		int	nb_jobs
	)

static

Definition at line 536 of file vf_curves.c.

Referenced by config_input().

◆ filter_slice_planar()

static int filter_slice_planar	(	AVFilterContext *	ctx,
		void *	arg,
		int	jobnr,
		int	nb_jobs
	)

static

Definition at line 584 of file vf_curves.c.

Referenced by config_input().

◆ config_input()

static int config_input ( AVFilterLink * inlink )

static

Definition at line 650 of file vf_curves.c.

◆ filter_frame()

static int filter_frame	(	AVFilterLink *	inlink,
		AVFrame *	in
	)

static

Definition at line 717 of file vf_curves.c.

◆ curves_uninit()

static av_cold void curves_uninit ( AVFilterContext * ctx )

static

Definition at line 746 of file vf_curves.c.

Variable Documentation

◆ curves_options

const AVOption curves_options[]

static

Initial value:

= {
    { "preset", "select a color curves preset", OFFSET(preset), AV_OPT_TYPE_INT, {.i64=PRESET_NONE}, PRESET_NONE, NB_PRESETS-1, FLAGS, "preset_name" },
        { "none",               NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_NONE},                 INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "color_negative",     NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_COLOR_NEGATIVE},       INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "cross_process",      NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_CROSS_PROCESS},        INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "darker",             NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_DARKER},               INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "increase_contrast",  NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_INCREASE_CONTRAST},    INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "lighter",            NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_LIGHTER},              INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "linear_contrast",    NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_LINEAR_CONTRAST},      INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "medium_contrast",    NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_MEDIUM_CONTRAST},      INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "negative",           NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_NEGATIVE},             INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "strong_contrast",    NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_STRONG_CONTRAST},      INT_MIN, INT_MAX, FLAGS, "preset_name" },
        { "vintage",            NULL, 0, AV_OPT_TYPE_CONST, {.i64=PRESET_VINTAGE},              INT_MIN, INT_MAX, FLAGS, "preset_name" },
    { "master","set master points coordinates",OFFSET(comp_points_str[NB_COMP]), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "m",     "set master points coordinates",OFFSET(comp_points_str[NB_COMP]), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "red",   "set red points coordinates",   OFFSET(comp_points_str[0]), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "r",     "set red points coordinates",   OFFSET(comp_points_str[0]), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "green", "set green points coordinates", OFFSET(comp_points_str[1]), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "g",     "set green points coordinates", OFFSET(comp_points_str[1]), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "blue",  "set blue points coordinates",  OFFSET(comp_points_str[2]), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "b",     "set blue points coordinates",  OFFSET(comp_points_str[2]), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "all",   "set points coordinates for all components", OFFSET(comp_points_str_all), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "psfile", "set Photoshop curves file name", OFFSET(psfile), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { "plot", "save Gnuplot script of the curves in specified file", OFFSET(plot_filename), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
    { NULL }
}

Definition at line 84 of file vf_curves.c.

◆ r

const char* r

Definition at line 114 of file vf_curves.c.

Referenced by add_bell(), add_hfyu_left_pred_bgr32_c(), aes_crypt(), alloc_frame_buffer(), amqp_proto_open(), autoregression(), av_inv_q(), av_make_q(), av_rc4_crypt(), av_rc4_init(), av_realloc_f(), av_rescale_rnd(), av_size_mult(), avcodec_default_execute(), avcodec_default_execute2(), avfilter_graph_request_oldest(), avfilter_graph_send_command(), avpriv_set_systematic_pal2(), bessel(), block_matching_multi(), bprint_color(), butterworth_bp_filter(), cache_read(), calc_add_mv(), cdg_load_palette(), cdtoons_decode_frame(), cdxl_decode_ham6(), cdxl_decode_ham8(), celt_lpc(), chebyshev1_bp_filter(), chebyshev2_bp_filter(), check_slice_end(), checkasm_check_nlmeans(), choose_rct_params(), cinepak_decode_codebook(), cng_decode_frame(), color_balance16(), color_balance16_p(), color_balance8(), color_balance8_p(), color_correlation(), color_decorrelation(), color_distance(), color_get(), color_hash(), compress_color(), compute_gru(), compute_lpc_coefs(), compute_unsafe_ssd_integral_image(), config_input(), config_output(), config_props(), constrain_rgb(), convert_pd2zp(), convert_pr2zp(), convert_timestamp(), count_colors(), cqt_calc(), curves_init(), debug_accuracy(), decipher(), decode_argb(), decode_argbi(), decode_argx(), decode_argxi(), decode_block_coeffs_internal(), decode_byterun2(), decode_delta_j(), decode_frame(), decode_frame_header(), decode_hybrid(), decode_init(), decode_mvc2(), decode_pal(), decode_plte_chunk(), decode_raw_intra_rgb(), decode_refpass(), decode_residual_block(), decode_rgb(), decode_rgb_frame_TMPL(), decode_rgbi(), decode_rgbx(), decode_rgbxi(), decode_rice(), decode_run_i(), decode_run_p(), decode_units(), decode_value3(), decompose_transform(), decompress_i(), decompress_i3(), decompress_p(), decompress_p3(), default_execute(), dither_int_to_float_triangular_c(), do_colorhold_slice(), do_colorkey_pixel(), doTest(), draw_rectangle(), draw_spatial(), dshow_cycle_devices(), dshow_cycle_formats(), dshow_cycle_pins(), dshow_list_device_options(), dshow_open_device(), dshow_read_close(), dshow_read_header(), dump_spherical(), dv_read_seek(), dvbsub_init_decoder(), dvbsub_parse_clut_segment(), dx2_decode_slice_5x5(), encipher(), encode_dvb_subtitles(), encode_frame(), encode_rgb_frame_TMPL(), encode_scalar(), encode_thread(), eval_expr(), expand_script(), expand_tseq(), f_func(), ff_alsa_extend_reorder_buf(), ff_big_div(), ff_els_decode_unsigned(), ff_get_qtpalette(), ff_gmc_c(), ff_jpegls_decode_picture(), ff_lag_rac_init(), ff_mjpeg_decode_frame(), ff_parse_time_base(), ff_rgb24toyv12_c(), ff_rtp_handler_iterate(), ff_rtp_send_h264_hevc(), ff_rtp_send_mpegvideo(), ff_rv34_decode_end(), ff_rv34_decode_frame(), ff_rv34_decode_init(), ff_rv34_decode_update_thread_context(), ff_text_eof(), ff_text_init_avio(), ff_text_init_buf(), ff_text_peek_r8(), ff_text_pos(), ff_text_r8(), ff_text_read(), fileTest(), fill_in_tongue(), fill_picture_parameters(), fill_slice_long(), filter(), filter_frame(), filter_rgb24(), filter_rgb48(), filter_rgba(), filter_rgba64(), filter_slice_grey_edge(), filter_slice_packed(), filter_slice_planar(), find_ref_mvs(), finish_frame(), flic_decode_frame_8BPP(), frac64(), frand(), gamma_convert(), gamma_correct_rgb(), gdv_decode_frame(), gdv_read_header(), gen_image(), gen_sub_bitmap(), generate_interval(), generate_intervals(), generate_joint_tables(), generate_plateau(), generate_transition(), get_avg_color(), get_cmy_scale(), get_dst_color_err(), get_high_utility_cell(), get_next_color(), get_palette_frame(), get_rgb_scale(), get_symbol2(), get_tree_codes(), gfmul(), guess_palette(), guess_status_pts(), h263_handle_packet(), hdcd_analyze_gen(), hpel_motion_search(), huff_reader_build_canonical(), huff_reader_get_symbol(), idcin_read_packet(), idct_col2(), idct_row(), import_palette(), init(), init_axis_color(), interpolate(), inv_cdf(), iterative_me(), jp2_find_codestream(), lex_char(), lex_double(), lex_time(), loco_get_rice(), loco_get_rice_param(), loco_update_rice_param(), ls_decode_line(), magy_decode_slice(), magy_decode_slice10(), magy_encode_frame(), main(), make_cdt15_entry(), make_cdt16_entry(), make_cdt24_entry(), mc_block(), modplug_read_header(), mov_estimate_video_delay(), mov_read_sv3d(), mov_write_video_tag(), mp_yuv_to_rgb(), mpeg4_decode_sprite_trajectory(), mpegts_push_data(), mss2_blit_wmv9_template(), mss2_decode_frame(), MULH(), nlmeans_plane(), on2avc_apply_ms(), opt_list(), optimize_colors(), paf_video_decode(), parse_3dl(), parse_block_def(), parse_ifo_palette(), parse_optarg(), parse_options(), parse_palette(), parse_palette_segment(), parse_pixel_format(), parse_points(), parse_script(), parse_synth_channel(), parse_synth_def(), parse_time_sequence(), parse_timestamp(), pitch_filter(), pix_abs16x16_x2_mvi(), png_filter_row(), pnm_decode_frame(), pop_integer(), pow_poly(), premult2straight(), preservel(), print_pkt_side_data(), process_anticollapse(), process_bayer(), process_ipmovie_chunk(), ps_stereo_interpolate_c(), ps_stereo_interpolate_ipdopd_c(), pulse_read_packet(), pulse_write_packet(), push_integer(), put_pixel(), put_symbol2(), put_vc1_mspel_mc_h_v_msa(), qpel_motion_search(), rand64(), rd_frame(), read_data(), read_var_block_data(), read_whole_file(), refine_colors(), request_frame(), restore_rgb_planes10_c(), restore_rgb_planes_c(), rgb12to15(), rgb24_to_yuv420p(), rgb24to15_c(), rgb24to15_TMPL(), rgb24to16_c(), rgb24to16_TMPL(), rgb24tobgr15_c(), rgb24tobgr15_TMPL(), rgb24tobgr16_c(), rgb24tobgr16_TMPL(), rgb48Toxyz12(), rgb_to_yuv(), rgba2ycocg(), rgtc2_block_internal(), ring2_test(), rotate_tree(), roundToInt16(), rtmp_close(), rtmp_get_file_handle(), rtmp_open(), rtmp_read(), rtmp_read_pause(), rtmp_read_seek(), rtmp_write(), rtsp_read_packet(), run_postproc(), run_test(), rv30_decode_init(), rv30_decode_intra_types(), rv30_decode_mb_info(), rv30_loop_filter(), rv30_parse_slice_header(), rv34_decode_inter_macroblock(), rv34_decode_inter_mb_header(), rv34_decode_intra_macroblock(), rv34_decode_intra_mb_header(), rv34_decode_mv(), rv34_decode_slice(), rv34_decoder_alloc(), rv34_decoder_free(), rv34_decoder_realloc(), rv34_mc(), rv34_mc_1mv(), rv34_mc_2mv(), rv34_mc_2mv_skip(), rv34_output_i16x16(), rv34_output_intra(), rv34_pred_4x4_block(), rv34_pred_mv(), rv34_pred_mv_b(), rv34_pred_mv_rv3(), rv34_process_block(), rv34_set_deblock_coef(), rv40_decode_init(), rv40_decode_intra_types(), rv40_decode_mb_info(), rv40_loop_filter(), rv40_parse_slice_header(), rv4_weight(), sad_hpel_motion_search(), sbg_read_header(), sbg_read_probe(), sbr_hf_g_filt_c(), scale_double(), search_keyval(), set_frame(), set_palette(), set_params(), silk_unmix_ms(), slice_get_derivative(), smacker_decode_bigtree(), smacker_decode_tree(), smvjpeg_decode_init(), stereo_transform(), stereographic_to_xyz(), sub2video_copy_rect(), sub_left_prediction_bgr32(), sub_left_prediction_rgb24(), super2xsai(), swri_rematrix_init(), sws_scale(), test_stereo_interpolate(), tta_decode_frame(), tta_read_header(), uintpow(), update_palette_index(), vc1_mspel_filter(), vc2_encode_init(), vibrance_slice16(), vibrance_slice8(), vmd_decode(), vmdvideo_decode_init(), vp7_decode_block_coeffs_internal(), vp8_decode_block_coeffs_internal(), vp9_handle_packet(), vqa_decode_chunk(), wavesynth_decode(), wavesynth_init(), xan_decode_frame(), xface_encode_frame(), xyz12Torgb48(), xyz_to_ball(), xyz_to_flat(), xyz_to_rgb(), xyz_to_stereographic(), ycocg2rgba(), yuv2rgb_1_c_template(), yuv2rgb_2_c_template(), yuv2rgb_write(), yuv2rgb_write_full(), yuv2rgb_X_c_template(), yuv_a_to_rgba(), yuv_from_cqt(), and yuv_to_rgba().

◆ g

const char* g

Definition at line 115 of file vf_curves.c.

Referenced by add_hfyu_left_pred_bgr32_c(), add_opt(), add_waves(), adjust_frame_information(), adpcm_decode_frame(), apply_dependent_coupling(), apply_dependent_coupling_fixed(), apply_intensity_stereo(), apply_mid_side_stereo(), asf_build_simple_index(), asf_read_ext_stream_properties(), asf_read_header(), asf_read_stream_properties(), asf_read_unknown(), avcodec_string(), avpriv_set_systematic_pal2(), bfi_decode_frame(), bgr24ToUV_c(), bgr24ToUV_half_c(), bgr24ToY_c(), bprint_color(), butterworth_bp_filter(), butterworth_fo_section(), bytestream2_copy_buffer(), bytestream2_copy_bufferu(), bytestream2_get_buffer(), bytestream2_get_bufferu(), bytestream2_get_bytes_left(), bytestream2_init(), bytestream2_seek(), bytestream2_size(), bytestream2_skip(), bytestream2_skipu(), bytestream2_tell(), calc_thr_3gpp(), calculate_gamma(), cas_slice16(), cas_slice8(), cdg_load_palette(), cdtoons_decode_frame(), cdxl_decode_ham6(), cdxl_decode_ham8(), celt_normalize_residual(), celt_renormalize_vector(), chebyshev2_bp_filter(), chebyshev2_fo_section(), choose_rct_params(), cinepak_decode_codebook(), color_balance16(), color_balance16_p(), color_balance8(), color_balance8_p(), color_correlation(), color_decorrelation(), color_get(), color_hash(), compress_color(), compute_antialias(), compute_band_indexes(), compute_imdct(), config_input(), constrain_rgb(), create_lut(), curves_init(), dct_quantize_refine(), debug_accuracy(), decode_adaptive45(), decode_adaptive6(), decode_argb(), decode_argbi(), decode_argx(), decode_argxi(), decode_band_types(), decode_cce(), decode_delta_j(), decode_frame(), decode_hybrid(), decode_mvc2(), decode_pal(), decode_plte_chunk(), decode_raw_intra_rgb(), decode_rgb(), decode_rgb_frame_TMPL(), decode_rgbi(), decode_rgbx(), decode_rgbxi(), decode_run_i(), decode_run_p(), decode_scalefactors(), decode_spectrum_and_dequant(), decode_units(), decode_value3(), decompress_i(), decompress_i3(), decompress_p(), decompress_p3(), detect_unknown_subobject(), do_colorhold_slice(), do_colorkey_pixel(), dvbsub_init_decoder(), dvbsub_parse_clut_segment(), dx2_decode_slice_5x5(), encode_dvb_subtitles(), encode_frame(), encode_rgb_frame_TMPL(), exponents_from_scale_factors(), ff_aac_adjust_common_pred(), ff_aac_is_encoding_err(), ff_aac_search_for_is(), ff_aac_search_for_ltp(), ff_aac_search_for_tns(), ff_flac_parse_picture(), ff_get_guid(), ff_get_qtpalette(), ff_init_nextband_map(), ff_jpegls_decode_picture(), ff_mjpeg_decode_frame(), ff_pns_bits(), ff_printGUID(), ff_put_guid(), ff_rgb24toyv12_c(), fill_in_tongue(), filter_frame(), filter_horizontally(), filter_rgb24(), filter_rgb48(), filter_rgba(), filter_rgba64(), filter_slice_packed(), filter_slice_planar(), find_best_vect(), find_guid(), finish_group(), flic_decode_frame_8BPP(), gamma_convert(), gamma_correct_rgb(), gbr24pToUV_half_c(), gdv_decode_frame(), gdv_read_header(), gen_image(), gen_sub_bitmap(), generate_joint_tables(), get_avg_color(), get_cmy_scale(), get_dst_color_err(), get_match_score(), get_next_color(), get_palette_frame(), get_rgb_scale(), gif_find_frame_end(), gif_parse(), guess_palette(), huffman_decode(), idcin_read_packet(), imdct_calc(), import_palette(), incr_cntdec(), init(), init_axis_color(), init_long_region(), init_short_region(), interp_band_gain(), jp2_find_codestream(), magy_decode_slice(), magy_decode_slice10(), magy_encode_frame(), main(), mangle_rgb_planes(), mark_pns(), mov_write_video_tag(), mp_decode_layer3(), mp_yuv_to_rgb(), optimize_colors(), paf_video_decode(), parse_3dl(), parse_bit_alloc(), parse_chunks(), parse_exponents(), parse_ifo_palette(), parse_indices(), parse_mantissas(), parse_optgroup(), parse_palette(), parse_palette_segment(), parse_pixel_format(), pitch_filter(), planar_rgb16_to_uv(), planar_rgb16_to_y(), planar_rgb_to_uv(), planar_rgb_to_y(), planar_rgbf32_to_uv(), planar_rgbf32_to_y(), png_filter_row(), pnm_decode_frame(), premult2straight(), preservel(), process_bayer(), process_ipmovie_chunk(), psy_3gpp_analyze_channel(), psy_3gpp_init(), put_header(), put_pixel(), qdmc_decode_init(), quantize_band_cost_cached(), ra144_encode_subblock(), rd_frame(), refine_colors(), region_offset2size(), remove_doubling(), reorder_block(), rescale_dec(), restore_rgb_planes10_c(), restore_rgb_planes_c(), rgb12to15(), rgb16_32ToUV_c_template(), rgb16_32ToUV_half_c_template(), rgb24_to_yuv420p(), rgb24to15_c(), rgb24to15_TMPL(), rgb24to16_c(), rgb24to16_TMPL(), rgb24tobgr15_c(), rgb24tobgr15_TMPL(), rgb24tobgr16_c(), rgb24tobgr16_TMPL(), rgb24ToUV_c(), rgb24ToUV_half_c(), rgb24ToY_c(), rgb48funcs(), rgb48ToUV_c_template(), rgb48ToUV_half_c_template(), rgb48Toxyz12(), rgb64funcs(), rgb64ToUV_c_template(), rgb64ToUV_half_c_template(), rgb64ToY_c_template(), rgb_from_cqt(), rgb_to_yuv(), rgba2ycocg(), rgtc2_block_internal(), ripemd128_transform(), ripemd160_transform(), ripemd256_transform(), ripemd320_transform(), rnnoise_channel(), run_channel_fft(), run_postproc(), sbr_hf_gen(), search_for_ms(), search_for_pns(), search_for_quantizers_anmr(), search_for_quantizers_fast(), search_for_quantizers_twoloop(), set_frame(), set_palette(), set_special_band_scalefactors(), sha256_transform(), sha512_transform(), shuffle_bytes_0321_c(), shuffle_bytes_2103_c(), slice_get_derivative(), sub_left_prediction_bgr32(), sub_left_prediction_rgb24(), sws_scale(), transform(), transform_step(), unbias_exponents(), update_model2_to_6(), update_model3_to_7(), update_model4_to_5(), update_model5_to_6(), update_palette_index(), vb_decode_framedata(), vibrance_slice16(), vibrance_slice8(), vmd_decode(), vmdvideo_decode_init(), vp9_handle_packet(), vqa_decode_chunk(), write_stream_codec_info(), xan_decode_frame(), xyz12Torgb48(), xyz_to_rgb(), ycocg2rgba(), yuv2rgb_1_c_template(), yuv2rgb_2_c_template(), yuv2rgb_write(), yuv2rgb_write_full(), yuv2rgb_X_c_template(), yuv_a_to_rgba(), yuv_from_cqt(), and yuv_to_rgba().

◆ b

const char* b

Definition at line 116 of file vf_curves.c.

Referenced by curves_init(), filter_slice_packed(), filter_slice_planar(), and interpolate().

◆ master

const char* master

Definition at line 117 of file vf_curves.c.

Referenced by curves_init(), do_psnr(), do_ssim(), do_vmaf(), end_ebml_master(), load_apply_palette(), and revert_channel_correlation().

◆ curves_presets

const { ... } curves_presets[]

Initial value:

= {
    [PRESET_COLOR_NEGATIVE] = {
        "0.129/1 0.466/0.498 0.725/0",
        "0.109/1 0.301/0.498 0.517/0",
        "0.098/1 0.235/0.498 0.423/0",
    },
    [PRESET_CROSS_PROCESS] = {
        "0/0 0.25/0.156 0.501/0.501 0.686/0.745 1/1",
        "0/0 0.25/0.188 0.38/0.501 0.745/0.815 1/0.815",
        "0/0 0.231/0.094 0.709/0.874 1/1",
    },
    [PRESET_DARKER]             = { .master = "0/0 0.5/0.4 1/1" },
    [PRESET_INCREASE_CONTRAST]  = { .master = "0/0 0.149/0.066 0.831/0.905 0.905/0.98 1/1" },
    [PRESET_LIGHTER]            = { .master = "0/0 0.4/0.5 1/1" },
    [PRESET_LINEAR_CONTRAST]    = { .master = "0/0 0.305/0.286 0.694/0.713 1/1" },
    [PRESET_MEDIUM_CONTRAST]    = { .master = "0/0 0.286/0.219 0.639/0.643 1/1" },
    [PRESET_NEGATIVE]           = { .master = "0/1 1/0" },
    [PRESET_STRONG_CONTRAST]    = { .master = "0/0 0.301/0.196 0.592/0.6 0.686/0.737 1/1" },
    [PRESET_VINTAGE] = {
        "0/0.11 0.42/0.51 1/0.95",
        "0/0 0.50/0.48 1/1",
        "0/0.22 0.49/0.44 1/0.8",
    }
}

◆ curves_inputs

const AVFilterPad curves_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame,
        .config_props = config_input,
    },
    { NULL }
}

Definition at line 755 of file vf_curves.c.

◆ curves_outputs

const AVFilterPad curves_outputs[]

static

Initial value:

= {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
    },
    { NULL }
}

Definition at line 765 of file vf_curves.c.

◆ ff_vf_curves

AVFilter ff_vf_curves

Initial value:

= {
    .name          = "curves",
    .description   = NULL_IF_CONFIG_SMALL("Adjust components curves."),
    .priv_size     = sizeof(CurvesContext),
    .init          = curves_init,
    .uninit        = curves_uninit,
    .query_formats = query_formats,
    .inputs        = curves_inputs,
    .outputs       = curves_outputs,
    .priv_class    = &curves_class,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 773 of file vf_curves.c.

Data Structures

Macros

Enumerations

Functions

Variables

Macro Definition Documentation

◆ R

◆ G

◆ B

◆ A

◆ NB_COMP

◆ OFFSET

◆ FLAGS

◆ CLIP

◆ BD

◆ MD

◆ AD

◆ DECLARE_INTERPOLATE_FUNC

◆ READ16

◆ SET_COMP_IF_NOT_SET

Enumeration Type Documentation

◆ preset

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

◆ make_point()

◆ parse_points_str()

◆ get_nb_points()

◆ interpolate()

◆ parse_psfile()

◆ dump_curves()

◆ curves_init()

◆ query_formats()

◆ filter_slice_packed()

◆ filter_slice_planar()

◆ config_input()

◆ filter_frame()

◆ curves_uninit()

Variable Documentation

◆ curves_options

◆ r

◆ g

◆ b

◆ master

◆ curves_presets

◆ curves_inputs

◆ curves_outputs

◆ ff_vf_curves