diff options
Diffstat (limited to 'libavfilter/vsrc_color.c')
| -rw-r--r-- | libavfilter/vsrc_color.c | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/libavfilter/vsrc_color.c b/libavfilter/vsrc_color.c deleted file mode 100644 index 6612de5a6e..0000000000 --- a/libavfilter/vsrc_color.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * Copyright (c) 2010 Stefano Sabatini - * - * 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 - * color source - */ - -#include "avfilter.h" -#include "formats.h" -#include "internal.h" -#include "video.h" -#include "libavutil/pixdesc.h" -#include "libavutil/colorspace.h" -#include "libavutil/imgutils.h" -#include "libavutil/mathematics.h" -#include "libavutil/opt.h" -#include "libavutil/parseutils.h" -#include "drawutils.h" - -typedef struct { - const AVClass *class; - int w, h; - char *rate_str; - char *color_str; - uint8_t color_rgba[4]; - AVRational time_base; - uint64_t pts; - FFDrawContext draw; - FFDrawColor color; - AVFilterBufferRef *picref; ///< cached reference containing the painted picture -} ColorContext; - -#define OFFSET(x) offsetof(ColorContext, x) - -static const AVOption color_options[]= { - { "size", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0 }, - { "s", "set frame size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0 }, - { "rate", "set frame rate", OFFSET(rate_str), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 }, - { "r", "set frame rate", OFFSET(rate_str), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 }, - { "color", "set color", OFFSET(color_str), AV_OPT_TYPE_STRING, {.str = "black"}, CHAR_MIN, CHAR_MAX }, - { "c", "set color", OFFSET(color_str), AV_OPT_TYPE_STRING, {.str = "black"}, CHAR_MIN, CHAR_MAX }, - { NULL }, -}; - -AVFILTER_DEFINE_CLASS(color); - -static av_cold int color_init(AVFilterContext *ctx, const char *args) -{ - ColorContext *color = ctx->priv; - AVRational frame_rate_q; - int ret = 0; - - color->class = &color_class; - - av_opt_set_defaults(color); - if ((ret = av_set_options_string(color, args, "=", ":")) < 0) { - av_log(ctx, AV_LOG_ERROR, "Error parsing options string: '%s'\n", args); - goto end; - } - if (av_parse_video_rate(&frame_rate_q, color->rate_str) < 0) { - av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\n", color->rate_str); - ret = AVERROR(EINVAL); - goto end; - } - if (av_parse_color(color->color_rgba, color->color_str, -1, ctx) < 0) { - ret = AVERROR(EINVAL); - goto end; - } - - color->time_base.num = frame_rate_q.den; - color->time_base.den = frame_rate_q.num; - -end: - return ret; -} - -static av_cold void color_uninit(AVFilterContext *ctx) -{ - ColorContext *color = ctx->priv; - av_opt_free(color); - avfilter_unref_bufferp(&color->picref); -} - -static int query_formats(AVFilterContext *ctx) -{ - ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0)); - return 0; -} - -static int color_config_props(AVFilterLink *inlink) -{ - AVFilterContext *ctx = inlink->src; - ColorContext *color = ctx->priv; - - ff_draw_init(&color->draw, inlink->format, 0); - ff_draw_color(&color->draw, &color->color, color->color_rgba); - - color->w = ff_draw_round_to_sub(&color->draw, 0, -1, color->w); - color->h = ff_draw_round_to_sub(&color->draw, 1, -1, color->h); - if (av_image_check_size(color->w, color->h, 0, ctx) < 0) - return AVERROR(EINVAL); - - av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d r:%d/%d color:0x%02x%02x%02x%02x\n", - color->w, color->h, color->time_base.den, color->time_base.num, - color->color_rgba[0], color->color_rgba[1], color->color_rgba[2], color->color_rgba[3]); - inlink->w = color->w; - inlink->h = color->h; - inlink->time_base = color->time_base; - - return 0; -} - -static int color_request_frame(AVFilterLink *link) -{ - ColorContext *color = link->src->priv; - AVFilterBufferRef *buf_out; - int ret; - - if (!color->picref) { - color->picref = - ff_get_video_buffer(link, AV_PERM_WRITE|AV_PERM_PRESERVE|AV_PERM_REUSE, - color->w, color->h); - if (!color->picref) - return AVERROR(ENOMEM); - ff_fill_rectangle(&color->draw, &color->color, - color->picref->data, color->picref->linesize, - 0, 0, color->w, color->h); - color->picref->video->sample_aspect_ratio = (AVRational) {1, 1}; - color->picref->pos = -1; - } - - color->picref->pts = color->pts++; - buf_out = avfilter_ref_buffer(color->picref, ~AV_PERM_WRITE); - if (!buf_out) { - ret = AVERROR(ENOMEM); - goto fail; - } - - ret = ff_start_frame(link, buf_out); - if (ret < 0) - goto fail; - - ret = ff_draw_slice(link, 0, color->h, 1); - if (ret < 0) - goto fail; - - ret = ff_end_frame(link); - -fail: - return ret; -} - -AVFilter avfilter_vsrc_color = { - .name = "color", - .description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input."), - - .priv_size = sizeof(ColorContext), - .init = color_init, - .uninit = color_uninit, - - .query_formats = query_formats, - - .inputs = (const AVFilterPad[]) {{ .name = NULL}}, - - .outputs = (const AVFilterPad[]) {{ .name = "default", - .type = AVMEDIA_TYPE_VIDEO, - .request_frame = color_request_frame, - .config_props = color_config_props }, - { .name = NULL}}, -}; |