diff options
Diffstat (limited to 'libavfilter/vsrc_color.c')
| -rw-r--r-- | libavfilter/vsrc_color.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/libavfilter/vsrc_color.c b/libavfilter/vsrc_color.c deleted file mode 100644 index ec83f03c5c..0000000000 --- a/libavfilter/vsrc_color.c +++ /dev/null @@ -1,197 +0,0 @@ -/* - * Copyright (c) 2010 Stefano Sabatini - * - * This file is part of Libav. - * - * Libav 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. - * - * Libav 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 Libav; 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/parseutils.h" -#include "drawutils.h" - -typedef struct { - int w, h; - uint8_t color[4]; - AVRational time_base; - uint8_t *line[4]; - int line_step[4]; - int hsub, vsub; ///< chroma subsampling values - uint64_t pts; -} ColorContext; - -static av_cold int color_init(AVFilterContext *ctx, const char *args) -{ - ColorContext *color = ctx->priv; - char color_string[128] = "black"; - char frame_size [128] = "320x240"; - char frame_rate [128] = "25"; - AVRational frame_rate_q; - int ret; - - if (args) - sscanf(args, "%127[^:]:%127[^:]:%127s", color_string, frame_size, frame_rate); - - if (av_parse_video_size(&color->w, &color->h, frame_size) < 0) { - av_log(ctx, AV_LOG_ERROR, "Invalid frame size: %s\n", frame_size); - return AVERROR(EINVAL); - } - - if (av_parse_video_rate(&frame_rate_q, frame_rate) < 0 || - frame_rate_q.den <= 0 || frame_rate_q.num <= 0) { - av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\n", frame_rate); - return AVERROR(EINVAL); - } - color->time_base.num = frame_rate_q.den; - color->time_base.den = frame_rate_q.num; - - if ((ret = av_parse_color(color->color, color_string, -1, ctx)) < 0) - return ret; - - return 0; -} - -static av_cold void color_uninit(AVFilterContext *ctx) -{ - ColorContext *color = ctx->priv; - int i; - - for (i = 0; i < 4; i++) { - av_freep(&color->line[i]); - color->line_step[i] = 0; - } -} - -static int query_formats(AVFilterContext *ctx) -{ - static const enum PixelFormat pix_fmts[] = { - PIX_FMT_ARGB, PIX_FMT_RGBA, - PIX_FMT_ABGR, PIX_FMT_BGRA, - PIX_FMT_RGB24, PIX_FMT_BGR24, - - PIX_FMT_YUV444P, PIX_FMT_YUV422P, - PIX_FMT_YUV420P, PIX_FMT_YUV411P, - PIX_FMT_YUV410P, PIX_FMT_YUV440P, - PIX_FMT_YUVJ444P, PIX_FMT_YUVJ422P, - PIX_FMT_YUVJ420P, PIX_FMT_YUVJ440P, - PIX_FMT_YUVA420P, - - PIX_FMT_NONE - }; - - ff_set_common_formats(ctx, ff_make_format_list(pix_fmts)); - return 0; -} - -static int color_config_props(AVFilterLink *inlink) -{ - AVFilterContext *ctx = inlink->src; - ColorContext *color = ctx->priv; - uint8_t rgba_color[4]; - int is_packed_rgba; - const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format]; - - color->hsub = pix_desc->log2_chroma_w; - color->vsub = pix_desc->log2_chroma_h; - - color->w &= ~((1 << color->hsub) - 1); - color->h &= ~((1 << color->vsub) - 1); - if (av_image_check_size(color->w, color->h, 0, ctx) < 0) - return AVERROR(EINVAL); - - memcpy(rgba_color, color->color, sizeof(rgba_color)); - ff_fill_line_with_color(color->line, color->line_step, color->w, color->color, - inlink->format, rgba_color, &is_packed_rgba, NULL); - - av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d r:%d/%d color:0x%02x%02x%02x%02x[%s]\n", - color->w, color->h, color->time_base.den, color->time_base.num, - color->color[0], color->color[1], color->color[2], color->color[3], - is_packed_rgba ? "rgba" : "yuva"); - 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 *picref = ff_get_video_buffer(link, AV_PERM_WRITE, color->w, color->h); - AVFilterBufferRef *buf_out; - int ret; - - if (!picref) - return AVERROR(ENOMEM); - - picref->video->pixel_aspect = (AVRational) {1, 1}; - picref->pts = color->pts++; - picref->pos = -1; - - buf_out = avfilter_ref_buffer(picref, ~0); - if (!buf_out) { - ret = AVERROR(ENOMEM); - goto fail; - } - - ret = ff_start_frame(link, buf_out); - if (ret < 0) - goto fail; - - ff_draw_rectangle(picref->data, picref->linesize, - color->line, color->line_step, color->hsub, color->vsub, - 0, 0, color->w, color->h); - ret = ff_draw_slice(link, 0, color->h, 1); - if (ret < 0) - goto fail; - - ret = ff_end_frame(link); - -fail: - avfilter_unref_buffer(picref); - - return ret; -} - -AVFilter avfilter_vsrc_color = { - .name = "color", - .description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input, syntax is: [color[:size[:rate]]]"), - - .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}}, -}; |