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https://github.com/FFmpeg/FFmpeg.git
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lavfi: put color source in a dedicated file
Move the color source code from vf_pad.c to vsrc_color.c. Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Stefano Sabatini
Mans Rullgard
parent
5ad06110e0
commit
c8c0189d62
@ -50,7 +50,7 @@ OBJS-$(CONFIG_VFLIP_FILTER) += vf_vflip.o
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OBJS-$(CONFIG_YADIF_FILTER) += vf_yadif.o
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OBJS-$(CONFIG_BUFFER_FILTER) += vsrc_buffer.o
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OBJS-$(CONFIG_COLOR_FILTER) += vf_pad.o
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OBJS-$(CONFIG_COLOR_FILTER) += vsrc_color.o
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OBJS-$(CONFIG_FREI0R_SRC_FILTER) += vf_frei0r.o
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OBJS-$(CONFIG_MOVIE_FILTER) += vsrc_movie.o
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OBJS-$(CONFIG_NULLSRC_FILTER) += vsrc_nullsrc.o
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@ -53,8 +53,6 @@ static int query_formats(AVFilterContext *ctx)
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return 0;
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}
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#if CONFIG_PAD_FILTER
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typedef struct {
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int w, h; ///< output dimensions, a value of 0 will result in the input size
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int x, y; ///< offsets of the input area with respect to the padded area
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@ -330,129 +328,3 @@ AVFilter avfilter_vf_pad = {
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.config_props = config_output, },
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{ .name = NULL}},
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};
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#endif /* CONFIG_PAD_FILTER */
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#if CONFIG_COLOR_FILTER
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typedef struct {
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int w, h;
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uint8_t color[4];
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AVRational time_base;
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uint8_t *line[4];
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int line_step[4];
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int hsub, vsub; ///< chroma subsampling values
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uint64_t pts;
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} ColorContext;
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static av_cold int color_init(AVFilterContext *ctx, const char *args, void *opaque)
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{
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ColorContext *color = ctx->priv;
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char color_string[128] = "black";
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char frame_size [128] = "320x240";
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char frame_rate [128] = "25";
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AVRational frame_rate_q;
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int ret;
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if (args)
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sscanf(args, "%127[^:]:%127[^:]:%127s", color_string, frame_size, frame_rate);
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if (av_parse_video_size(&color->w, &color->h, frame_size) < 0) {
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av_log(ctx, AV_LOG_ERROR, "Invalid frame size: %s\n", frame_size);
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return AVERROR(EINVAL);
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}
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if (av_parse_video_rate(&frame_rate_q, frame_rate) < 0 ||
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frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
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av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\n", frame_rate);
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return AVERROR(EINVAL);
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}
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color->time_base.num = frame_rate_q.den;
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color->time_base.den = frame_rate_q.num;
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if ((ret = av_parse_color(color->color, color_string, -1, ctx)) < 0)
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return ret;
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return 0;
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}
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static av_cold void color_uninit(AVFilterContext *ctx)
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{
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ColorContext *color = ctx->priv;
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int i;
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for (i = 0; i < 4; i++) {
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av_freep(&color->line[i]);
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color->line_step[i] = 0;
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}
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}
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static int color_config_props(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->src;
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ColorContext *color = ctx->priv;
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uint8_t rgba_color[4];
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int is_packed_rgba;
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const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format];
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color->hsub = pix_desc->log2_chroma_w;
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color->vsub = pix_desc->log2_chroma_h;
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color->w &= ~((1 << color->hsub) - 1);
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color->h &= ~((1 << color->vsub) - 1);
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if (av_image_check_size(color->w, color->h, 0, ctx) < 0)
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return AVERROR(EINVAL);
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memcpy(rgba_color, color->color, sizeof(rgba_color));
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ff_fill_line_with_color(color->line, color->line_step, color->w, color->color,
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inlink->format, rgba_color, &is_packed_rgba, NULL);
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av_log(ctx, AV_LOG_INFO, "w:%d h:%d r:%d/%d color:0x%02x%02x%02x%02x[%s]\n",
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color->w, color->h, color->time_base.den, color->time_base.num,
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color->color[0], color->color[1], color->color[2], color->color[3],
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is_packed_rgba ? "rgba" : "yuva");
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inlink->w = color->w;
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inlink->h = color->h;
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return 0;
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}
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static int color_request_frame(AVFilterLink *link)
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{
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ColorContext *color = link->src->priv;
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AVFilterBufferRef *picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, color->w, color->h);
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picref->video->pixel_aspect = (AVRational) {1, 1};
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picref->pts = av_rescale_q(color->pts++, color->time_base, AV_TIME_BASE_Q);
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picref->pos = 0;
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avfilter_start_frame(link, avfilter_ref_buffer(picref, ~0));
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ff_draw_rectangle(picref->data, picref->linesize,
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color->line, color->line_step, color->hsub, color->vsub,
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0, 0, color->w, color->h);
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avfilter_draw_slice(link, 0, color->h, 1);
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avfilter_end_frame(link);
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avfilter_unref_buffer(picref);
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return 0;
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}
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AVFilter avfilter_vsrc_color = {
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.name = "color",
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.description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input, syntax is: [color[:size[:rate]]]"),
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.priv_size = sizeof(ColorContext),
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.init = color_init,
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.uninit = color_uninit,
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.query_formats = query_formats,
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.inputs = (AVFilterPad[]) {{ .name = NULL}},
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.outputs = (AVFilterPad[]) {{ .name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.request_frame = color_request_frame,
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.config_props = color_config_props },
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{ .name = NULL}},
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};
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#endif /* CONFIG_COLOR_FILTER */
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167
libavfilter/vsrc_color.c
Normal file
167
libavfilter/vsrc_color.c
Normal file
@ -0,0 +1,167 @@
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/*
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* Copyright (c) 2010 Stefano Sabatini
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "avfilter.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/colorspace.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/parseutils.h"
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#include "drawutils.h"
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typedef struct {
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int w, h;
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uint8_t color[4];
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AVRational time_base;
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uint8_t *line[4];
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int line_step[4];
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int hsub, vsub; ///< chroma subsampling values
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uint64_t pts;
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} ColorContext;
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static av_cold int color_init(AVFilterContext *ctx, const char *args, void *opaque)
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{
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ColorContext *color = ctx->priv;
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char color_string[128] = "black";
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char frame_size [128] = "320x240";
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char frame_rate [128] = "25";
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AVRational frame_rate_q;
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int ret;
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if (args)
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sscanf(args, "%127[^:]:%127[^:]:%127s", color_string, frame_size, frame_rate);
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if (av_parse_video_size(&color->w, &color->h, frame_size) < 0) {
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av_log(ctx, AV_LOG_ERROR, "Invalid frame size: %s\n", frame_size);
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return AVERROR(EINVAL);
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}
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if (av_parse_video_rate(&frame_rate_q, frame_rate) < 0 ||
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frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
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av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\n", frame_rate);
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return AVERROR(EINVAL);
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}
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color->time_base.num = frame_rate_q.den;
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color->time_base.den = frame_rate_q.num;
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if ((ret = av_parse_color(color->color, color_string, -1, ctx)) < 0)
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return ret;
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return 0;
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}
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static av_cold void color_uninit(AVFilterContext *ctx)
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{
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ColorContext *color = ctx->priv;
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int i;
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for (i = 0; i < 4; i++) {
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av_freep(&color->line[i]);
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color->line_step[i] = 0;
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}
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}
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static int query_formats(AVFilterContext *ctx)
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{
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static const enum PixelFormat pix_fmts[] = {
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PIX_FMT_ARGB, PIX_FMT_RGBA,
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PIX_FMT_ABGR, PIX_FMT_BGRA,
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PIX_FMT_RGB24, PIX_FMT_BGR24,
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PIX_FMT_YUV444P, PIX_FMT_YUV422P,
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PIX_FMT_YUV420P, PIX_FMT_YUV411P,
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PIX_FMT_YUV410P, PIX_FMT_YUV440P,
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PIX_FMT_YUVJ444P, PIX_FMT_YUVJ422P,
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PIX_FMT_YUVJ420P, PIX_FMT_YUVJ440P,
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PIX_FMT_YUVA420P,
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PIX_FMT_NONE
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};
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avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
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return 0;
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}
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static int color_config_props(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->src;
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ColorContext *color = ctx->priv;
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uint8_t rgba_color[4];
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int is_packed_rgba;
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const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format];
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color->hsub = pix_desc->log2_chroma_w;
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color->vsub = pix_desc->log2_chroma_h;
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color->w &= ~((1 << color->hsub) - 1);
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color->h &= ~((1 << color->vsub) - 1);
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if (av_image_check_size(color->w, color->h, 0, ctx) < 0)
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return AVERROR(EINVAL);
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memcpy(rgba_color, color->color, sizeof(rgba_color));
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ff_fill_line_with_color(color->line, color->line_step, color->w, color->color,
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inlink->format, rgba_color, &is_packed_rgba, NULL);
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av_log(ctx, AV_LOG_INFO, "w:%d h:%d r:%d/%d color:0x%02x%02x%02x%02x[%s]\n",
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color->w, color->h, color->time_base.den, color->time_base.num,
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color->color[0], color->color[1], color->color[2], color->color[3],
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is_packed_rgba ? "rgba" : "yuva");
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inlink->w = color->w;
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inlink->h = color->h;
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return 0;
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}
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static int color_request_frame(AVFilterLink *link)
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{
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ColorContext *color = link->src->priv;
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AVFilterBufferRef *picref = avfilter_get_video_buffer(link, AV_PERM_WRITE, color->w, color->h);
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picref->video->pixel_aspect = (AVRational) {1, 1};
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picref->pts = av_rescale_q(color->pts++, color->time_base, AV_TIME_BASE_Q);
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picref->pos = 0;
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avfilter_start_frame(link, avfilter_ref_buffer(picref, ~0));
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ff_draw_rectangle(picref->data, picref->linesize,
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color->line, color->line_step, color->hsub, color->vsub,
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0, 0, color->w, color->h);
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avfilter_draw_slice(link, 0, color->h, 1);
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avfilter_end_frame(link);
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avfilter_unref_buffer(picref);
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return 0;
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}
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AVFilter avfilter_vsrc_color = {
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.name = "color",
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.description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input, syntax is: [color[:size[:rate]]]"),
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.priv_size = sizeof(ColorContext),
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.init = color_init,
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.uninit = color_uninit,
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.query_formats = query_formats,
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.inputs = (AVFilterPad[]) {{ .name = NULL}},
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.outputs = (AVFilterPad[]) {{ .name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.request_frame = color_request_frame,
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.config_props = color_config_props },
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{ .name = NULL}},
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};
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