From 6e9abce5e2d2e1ed51fbf4cb7bc69b89d0a8aa96 Mon Sep 17 00:00:00 2001 From: Paul B Mahol Date: Fri, 8 Feb 2013 15:48:59 +0000 Subject: lavfi: port MP il filter Signed-off-by: Paul B Mahol --- libavfilter/Makefile | 1 + libavfilter/allfilters.c | 1 + libavfilter/version.h | 2 +- libavfilter/vf_il.c | 236 +++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 239 insertions(+), 1 deletion(-) create mode 100644 libavfilter/vf_il.c (limited to 'libavfilter') diff --git a/libavfilter/Makefile b/libavfilter/Makefile index a9dfc16..7f17e42 100644 --- a/libavfilter/Makefile +++ b/libavfilter/Makefile @@ -126,6 +126,7 @@ OBJS-$(CONFIG_HISTOGRAM_FILTER) += vf_histogram.o OBJS-$(CONFIG_HQDN3D_FILTER) += vf_hqdn3d.o OBJS-$(CONFIG_HUE_FILTER) += vf_hue.o OBJS-$(CONFIG_IDET_FILTER) += vf_idet.o +OBJS-$(CONFIG_IL_FILTER) += vf_il.o OBJS-$(CONFIG_KERNDEINT_FILTER) += vf_kerndeint.o OBJS-$(CONFIG_LUT_FILTER) += vf_lut.o OBJS-$(CONFIG_LUTRGB_FILTER) += vf_lut.o diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c index 0def0b4..ff55428 100644 --- a/libavfilter/allfilters.c +++ b/libavfilter/allfilters.c @@ -120,6 +120,7 @@ void avfilter_register_all(void) REGISTER_FILTER(HQDN3D, hqdn3d, vf); REGISTER_FILTER(HUE, hue, vf); REGISTER_FILTER(IDET, idet, vf); + REGISTER_FILTER(IL, il, vf); REGISTER_FILTER(KERNDEINT, kerndeint, vf); REGISTER_FILTER(LUT, lut, vf); REGISTER_FILTER(LUTRGB, lutrgb, vf); diff --git a/libavfilter/version.h b/libavfilter/version.h index a4ba75a..dfeb842 100644 --- a/libavfilter/version.h +++ b/libavfilter/version.h @@ -29,7 +29,7 @@ #include "libavutil/avutil.h" #define LIBAVFILTER_VERSION_MAJOR 3 -#define LIBAVFILTER_VERSION_MINOR 36 +#define LIBAVFILTER_VERSION_MINOR 37 #define LIBAVFILTER_VERSION_MICRO 100 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \ diff --git a/libavfilter/vf_il.c b/libavfilter/vf_il.c new file mode 100644 index 0000000..536d793 --- /dev/null +++ b/libavfilter/vf_il.c @@ -0,0 +1,236 @@ +/* + * Copyright (c) 2002 Michael Niedmayer + * Copyright (c) 2013 Paul B Mahol + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * (de)interleave fields filter + */ + +#include "libavutil/opt.h" +#include "libavutil/pixdesc.h" +#include "avfilter.h" +#include "internal.h" + +enum FilterMode { + MODE_NONE, + MODE_INTERLEAVE, + MODE_DEINTERLEAVE +}; + +typedef struct { + const AVClass *class; + enum FilterMode luma_mode, chroma_mode, alpha_mode; + int luma_swap, chroma_swap, alpha_swap; + int nb_planes; + int chroma_width, chroma_height; + int width; +} IlContext; + +#define OFFSET(x) offsetof(IlContext, x) +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM + +static const AVOption il_options[] = { + {"luma_mode", "select luma mode", OFFSET(luma_mode), AV_OPT_TYPE_INT, {.i64=MODE_NONE}, MODE_NONE, MODE_DEINTERLEAVE, FLAGS, "luma_mode"}, + {"l", "select luma mode", OFFSET(luma_mode), AV_OPT_TYPE_INT, {.i64=MODE_NONE}, MODE_NONE, MODE_DEINTERLEAVE, FLAGS, "luma_mode"}, + {"none", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_NONE}, 0, 0, FLAGS, "luma_mode"}, + {"interleave", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE}, 0, 0, FLAGS, "luma_mode"}, + {"i", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE}, 0, 0, FLAGS, "luma_mode"}, + {"deinterleave", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_DEINTERLEAVE}, 0, 0, FLAGS, "luma_mode"}, + {"d", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_DEINTERLEAVE}, 0, 0, FLAGS, "luma_mode"}, + {"chroma_mode", "select chroma mode", OFFSET(chroma_mode), AV_OPT_TYPE_INT, {.i64=MODE_NONE}, MODE_NONE, MODE_DEINTERLEAVE, FLAGS, "chroma_mode"}, + {"c", "select chroma mode", OFFSET(chroma_mode), AV_OPT_TYPE_INT, {.i64=MODE_NONE}, MODE_NONE, MODE_DEINTERLEAVE, FLAGS, "chroma_mode"}, + {"none", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_NONE}, 0, 0, FLAGS, "chroma_mode"}, + {"interleave", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE}, 0, 0, FLAGS, "chroma_mode"}, + {"i", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE}, 0, 0, FLAGS, "chroma_mode"}, + {"deinterleave", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_DEINTERLEAVE}, 0, 0, FLAGS, "chroma_mode"}, + {"d", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_DEINTERLEAVE}, 0, 0, FLAGS, "chroma_mode"}, + {"alpha_mode", "select alpha mode", OFFSET(alpha_mode), AV_OPT_TYPE_INT, {.i64=MODE_NONE}, MODE_NONE, MODE_DEINTERLEAVE, FLAGS, "alpha_mode"}, + {"a", "select alpha mode", OFFSET(alpha_mode), AV_OPT_TYPE_INT, {.i64=MODE_NONE}, MODE_NONE, MODE_DEINTERLEAVE, FLAGS, "alpha_mode"}, + {"none", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_NONE}, 0, 0, FLAGS, "alpha_mode"}, + {"interleave", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE}, 0, 0, FLAGS, "alpha_mode"}, + {"i", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_INTERLEAVE}, 0, 0, FLAGS, "alpha_mode"}, + {"deinterleave", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_DEINTERLEAVE}, 0, 0, FLAGS, "alpha_mode"}, + {"d", NULL, 0, AV_OPT_TYPE_CONST, {.i64=MODE_DEINTERLEAVE}, 0, 0, FLAGS, "alpha_mode"}, + {"luma_swap", "swap luma fields", OFFSET(luma_swap), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS}, + {"ls", "swap luma fields", OFFSET(luma_swap), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS}, + {"chroma_swap", "swap chroma fields", OFFSET(chroma_swap), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS}, + {"cs", "swap chroma fields", OFFSET(chroma_swap), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS}, + {"alpha_swap", "swap alpha fields", OFFSET(alpha_swap), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS}, + {"as", "swap alpha fields", OFFSET(alpha_swap), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS}, + {NULL} +}; + +AVFILTER_DEFINE_CLASS(il); + +static av_cold int init(AVFilterContext *ctx, const char *args) +{ + IlContext *il = ctx->priv; + int ret; + + il->class = &il_class; + av_opt_set_defaults(il); + + if ((ret = av_set_options_string(il, args, "=", ":")) < 0) + return ret; + + return 0; +} + +static int config_input(AVFilterLink *inlink) +{ + IlContext *il = inlink->dst->priv; + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); + int bpp = av_get_padded_bits_per_pixel(desc) >> 3; + int bytes = FFALIGN(desc->comp[0].depth_minus1 + 1, 8) / 8; + int i; + + for (i = 0; i < desc->nb_components; i++) + il->nb_planes = FFMAX(il->nb_planes, desc->comp[i].plane); + il->nb_planes++; + + il->chroma_height = inlink->h >> desc->log2_chroma_h; + il->chroma_width = (inlink->w >> desc->log2_chroma_w) * bytes; + il->width = inlink->w * bytes; + if (!(desc->flags & PIX_FMT_PLANAR)) + il->width *= bpp; + + return 0; +} + +static void interleave(uint8_t *dst, uint8_t *src, int w, int h, + int dst_linesize, int src_linesize, + enum FilterMode mode, int swap) +{ + const int a = swap; + const int b = 1 - a; + const int m = h >> 1; + int y; + + switch (mode) { + case MODE_DEINTERLEAVE: + for (y = 0; y < m; y++) { + memcpy(dst + dst_linesize * y , src + src_linesize * (y * 2 + a), w); + memcpy(dst + dst_linesize * (y + m), src + src_linesize * (y * 2 + b), w); + } + break; + case MODE_NONE: + for (y = 0; y < m; y++) { + memcpy(dst + dst_linesize * y * 2 , src + src_linesize * (y * 2 + a), w); + memcpy(dst + dst_linesize * (y * 2 + 1), src + src_linesize * (y * 2 + b), w); + } + break; + case MODE_INTERLEAVE: + for (y = 0; y < m; y++) { + memcpy(dst + dst_linesize * (y * 2 + a), src + src_linesize * y , w); + memcpy(dst + dst_linesize * (y * 2 + b), src + src_linesize * (y + m), w); + } + break; + } +} + +static int filter_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref) +{ + IlContext *il = inlink->dst->priv; + AVFilterLink *outlink = inlink->dst->outputs[0]; + AVFilterBufferRef *out; + int ret; + + out = ff_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h); + if (!out) { + avfilter_unref_bufferp(&inpicref); + return AVERROR(ENOMEM); + } + avfilter_copy_buffer_ref_props(out, inpicref); + + interleave(out->data[0], inpicref->data[0], + il->width, inlink->h, + out->linesize[0], inpicref->linesize[0], + il->luma_mode, il->luma_swap); + + if (il->nb_planes > 2) { + interleave(out->data[1], inpicref->data[1], + il->chroma_width, il->chroma_height, + out->linesize[1], inpicref->linesize[1], + il->chroma_mode, il->chroma_swap); + interleave(out->data[2], inpicref->data[2], + il->chroma_width, il->chroma_height, + out->linesize[2], inpicref->linesize[2], + il->chroma_mode, il->chroma_swap); + } + if (il->nb_planes == 2 && il->nb_planes == 4) { + int comp = il->nb_planes - 1; + interleave(out->data[comp], inpicref->data[comp], + il->width, inlink->h, + out->linesize[comp], inpicref->linesize[comp], + il->alpha_mode, il->alpha_swap); + } + + ret = ff_filter_frame(outlink, out); + avfilter_unref_bufferp(&inpicref); + return ret; +} + +static int query_formats(AVFilterContext *ctx) +{ + AVFilterFormats *formats = NULL; + int fmt; + + for (fmt = 0; fmt < AV_PIX_FMT_NB; fmt++) { + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt); + if (!(desc->flags & PIX_FMT_PAL || + fmt == AV_PIX_FMT_NV21 || + fmt == AV_PIX_FMT_NV12)) + ff_add_format(&formats, fmt); + } + + ff_set_common_formats(ctx, formats); + return 0; +} + +static const AVFilterPad inputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + .get_video_buffer = ff_null_get_video_buffer, + .filter_frame = filter_frame, + .config_props = config_input, + }, + { NULL } +}; + +static const AVFilterPad outputs[] = { + { + .name = "default", + .type = AVMEDIA_TYPE_VIDEO, + }, + { NULL } +}; + +AVFilter avfilter_vf_il = { + .name = "il", + .description = NULL_IF_CONFIG_SMALL("Deinterleave or interleave fields."), + .priv_size = sizeof(IlContext), + .init = init, + .query_formats = query_formats, + .inputs = inputs, + .outputs = outputs, + .priv_class = &il_class, +}; -- cgit v1.1