diff options
Diffstat (limited to 'libavfilter/vf_lut3d.c')
-rw-r--r-- | libavfilter/vf_lut3d.c | 236 |
1 files changed, 222 insertions, 14 deletions
diff --git a/libavfilter/vf_lut3d.c b/libavfilter/vf_lut3d.c index df674d7f26..9a92043a60 100644 --- a/libavfilter/vf_lut3d.c +++ b/libavfilter/vf_lut3d.c @@ -31,6 +31,7 @@ #include "libavutil/avstring.h" #include "avfilter.h" #include "drawutils.h" +#include "dualinput.h" #include "formats.h" #include "internal.h" #include "video.h" @@ -51,7 +52,9 @@ struct rgbvec { float r, g, b; }; -#define MAX_LEVEL 36 +/* 3D LUT don't often go up to level 32, but it is common to have a Hald CLUT + * of 512x512 (64x64x64) */ +#define MAX_LEVEL 64 typedef struct LUT3DContext { const AVClass *class; @@ -64,20 +67,23 @@ typedef struct LUT3DContext { struct rgbvec (*interp_16)(const struct LUT3DContext*, uint16_t, uint16_t, uint16_t); struct rgbvec lut[MAX_LEVEL][MAX_LEVEL][MAX_LEVEL]; int lutsize; +#if CONFIG_HALDCLUT_FILTER + uint8_t clut_rgba_map[4]; + int clut_step; + int clut_is16bit; + int clut_width; + FFDualInputContext dinput; +#endif } LUT3DContext; #define OFFSET(x) offsetof(LUT3DContext, x) #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM -static const AVOption lut3d_options[] = { - { "file", "set 3D LUT file name", OFFSET(file), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS }, - { "interp", "select interpolation mode", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERPOLATE_TETRAHEDRAL}, 0, NB_INTERP_MODE-1, FLAGS, "interp_mode" }, - { "nearest", "use values from the nearest defined points", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_NEAREST}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, - { "trilinear", "interpolate values using the 8 points defining a cube", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TRILINEAR}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, - { "tetrahedral", "interpolate values using a tetrahedron", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TETRAHEDRAL}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, +#define COMMON_OPTIONS \ + { "interp", "select interpolation mode", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERPOLATE_TETRAHEDRAL}, 0, NB_INTERP_MODE-1, FLAGS, "interp_mode" }, \ + { "nearest", "use values from the nearest defined points", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_NEAREST}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \ + { "trilinear", "interpolate values using the 8 points defining a cube", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TRILINEAR}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \ + { "tetrahedral", "interpolate values using a tetrahedron", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TETRAHEDRAL}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \ { NULL } -}; - -AVFILTER_DEFINE_CLASS(lut3d); static inline float lerpf(float v0, float v1, float f) { @@ -404,7 +410,9 @@ static void set_identity_matrix(LUT3DContext *lut3d, int size) } } -static av_cold int init(AVFilterContext *ctx) +#if CONFIG_LUT3D_FILTER +/* TODO: move to the CONFIG_LUT3D_FILTER definition scope at the bottom */ +static av_cold int lut3d_init(AVFilterContext *ctx) { int ret; FILE *f; @@ -454,6 +462,7 @@ end: fclose(f); return ret; } +#endif static int query_formats(AVFilterContext *ctx) { @@ -523,7 +532,7 @@ static int config_input(AVFilterLink *inlink) } \ } while (0) -static int filter_frame(AVFilterLink *inlink, AVFrame *in) +static AVFrame *apply_lut(AVFilterLink *inlink, AVFrame *in) { int x, y, direct = 0; AVFilterContext *ctx = inlink->dst; @@ -543,7 +552,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) out = ff_get_video_buffer(outlink, outlink->w, outlink->h); if (!out) { av_frame_free(&in); - return AVERROR(ENOMEM); + return NULL; } av_frame_copy_props(out, in); } @@ -554,9 +563,26 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) if (!direct) av_frame_free(&in); + return out; +} + +static int filter_frame(AVFilterLink *inlink, AVFrame *in) +{ + AVFilterLink *outlink = inlink->dst->outputs[0]; + AVFrame *out = apply_lut(inlink, in); + if (!out) + return AVERROR(ENOMEM); return ff_filter_frame(outlink, out); } +#if CONFIG_LUT3D_FILTER +static const AVOption lut3d_options[] = { + { "file", "set 3D LUT file name", OFFSET(file), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS }, + COMMON_OPTIONS +}; + +AVFILTER_DEFINE_CLASS(lut3d); + static const AVFilterPad lut3d_inputs[] = { { .name = "default", @@ -579,10 +605,192 @@ AVFilter avfilter_vf_lut3d = { .name = "lut3d", .description = NULL_IF_CONFIG_SMALL("Adjust colors using a 3D LUT."), .priv_size = sizeof(LUT3DContext), - .init = init, + .init = lut3d_init, .query_formats = query_formats, .inputs = lut3d_inputs, .outputs = lut3d_outputs, .priv_class = &lut3d_class, .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, }; +#endif + +#if CONFIG_HALDCLUT_FILTER + +static void update_clut(LUT3DContext *lut3d, const AVFrame *frame) +{ + const uint8_t *data = frame->data[0]; + const int linesize = frame->linesize[0]; + const int w = lut3d->clut_width; + const int step = lut3d->clut_step; + const uint8_t *rgba_map = lut3d->clut_rgba_map; + const int level = lut3d->lutsize; + +#define LOAD_CLUT(nbits) do { \ + int i, j, k, x = 0, y = 0; \ + \ + for (k = 0; k < level; k++) { \ + for (j = 0; j < level; j++) { \ + for (i = 0; i < level; i++) { \ + const uint##nbits##_t *src = (const uint##nbits##_t *) \ + (data + y*linesize + x*step); \ + struct rgbvec *vec = &lut3d->lut[k][j][i]; \ + vec->r = src[rgba_map[0]] / (float)((1<<(nbits)) - 1); \ + vec->g = src[rgba_map[1]] / (float)((1<<(nbits)) - 1); \ + vec->b = src[rgba_map[2]] / (float)((1<<(nbits)) - 1); \ + if (++x == w) { \ + x = 0; \ + y++; \ + } \ + } \ + } \ + } \ +} while (0) + + if (!lut3d->clut_is16bit) LOAD_CLUT(8); + else LOAD_CLUT(16); +} + + +static int config_output(AVFilterLink *outlink) +{ + AVFilterContext *ctx = outlink->src; + + outlink->w = ctx->inputs[0]->w; + outlink->h = ctx->inputs[0]->h; + outlink->time_base = ctx->inputs[0]->time_base; + return 0; +} + +static int filter_frame_main(AVFilterLink *inlink, AVFrame *inpicref) +{ + LUT3DContext *s = inlink->dst->priv; + return ff_dualinput_filter_frame_main(&s->dinput, inlink, inpicref); +} + +static int filter_frame_clut(AVFilterLink *inlink, AVFrame *inpicref) +{ + LUT3DContext *s = inlink->dst->priv; + return ff_dualinput_filter_frame_second(&s->dinput, inlink, inpicref); +} + +static int request_frame(AVFilterLink *outlink) +{ + LUT3DContext *s = outlink->src->priv; + return ff_dualinput_request_frame(&s->dinput, outlink); +} + +static int config_clut(AVFilterLink *inlink) +{ + int size, level, w, h; + AVFilterContext *ctx = inlink->dst; + LUT3DContext *lut3d = ctx->priv; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); + + lut3d->clut_is16bit = 0; + switch (inlink->format) { + case AV_PIX_FMT_RGB48: + case AV_PIX_FMT_BGR48: + case AV_PIX_FMT_RGBA64: + case AV_PIX_FMT_BGRA64: + lut3d->clut_is16bit = 1; + } + + lut3d->clut_step = av_get_padded_bits_per_pixel(desc) >> 3; + ff_fill_rgba_map(lut3d->clut_rgba_map, inlink->format); + + if (inlink->w > inlink->h) + av_log(ctx, AV_LOG_INFO, "Padding on the right (%dpx) of the " + "Hald CLUT will be ignored\n", inlink->w - inlink->h); + else if (inlink->w < inlink->h) + av_log(ctx, AV_LOG_INFO, "Padding at the bottom (%dpx) of the " + "Hald CLUT will be ignored\n", inlink->h - inlink->w); + lut3d->clut_width = w = h = FFMIN(inlink->w, inlink->h); + + for (level = 1; level*level*level < w; level++); + size = level*level*level; + if (size != w) { + av_log(ctx, AV_LOG_WARNING, "The Hald CLUT width does not match the level\n"); + return AVERROR_INVALIDDATA; + } + av_assert0(w == h && w == size); + level *= level; + if (level > MAX_LEVEL) { + const int max_clut_level = sqrt(MAX_LEVEL); + const int max_clut_size = max_clut_level*max_clut_level*max_clut_level; + av_log(ctx, AV_LOG_ERROR, "Too large Hald CLUT " + "(maximum level is %d, or %dx%d CLUT)\n", + max_clut_level, max_clut_size, max_clut_size); + return AVERROR(EINVAL); + } + lut3d->lutsize = level; + + return 0; +} + +static AVFrame *update_apply_clut(AVFilterContext *ctx, AVFrame *main, + const AVFrame *second) +{ + AVFilterLink *inlink = ctx->inputs[0]; + update_clut(ctx->priv, second); + return apply_lut(inlink, main); +} + +static av_cold int haldclut_init(AVFilterContext *ctx) +{ + LUT3DContext *lut3d = ctx->priv; + lut3d->dinput.process = update_apply_clut; + return 0; +} + +static av_cold void haldclut_uninit(AVFilterContext *ctx) +{ + LUT3DContext *lut3d = ctx->priv; + ff_dualinput_uninit(&lut3d->dinput); +} + +static const AVOption haldclut_options[] = { + { "shortest", "force termination when the shortest input terminates", OFFSET(dinput.shortest), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 1, FLAGS }, + { "repeatlast", "continue applying the last clut after eos", OFFSET(dinput.repeatlast), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, FLAGS }, + COMMON_OPTIONS +}; + +AVFILTER_DEFINE_CLASS(haldclut); + +static const AVFilterPad haldclut_inputs[] = { + { + .name = "main", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame_main, + .config_props = config_input, + },{ + .name = "clut", + .type = AVMEDIA_TYPE_VIDEO, + .filter_frame = filter_frame_clut, + .config_props = config_clut, + }, + { NULL } +}; + +static const AVFilterPad haldclut_outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .request_frame = request_frame, + .config_props = config_output, + }, + { NULL } +}; + +AVFilter avfilter_vf_haldclut = { + .name = "haldclut", + .description = NULL_IF_CONFIG_SMALL("Adjust colors using a Hald CLUT."), + .priv_size = sizeof(LUT3DContext), + .init = haldclut_init, + .uninit = haldclut_uninit, + .query_formats = query_formats, + .inputs = haldclut_inputs, + .outputs = haldclut_outputs, + .priv_class = &haldclut_class, + .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL, +}; +#endif |