* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+/**
+ * @file
+ * color source
+ */
+
+#include <stdio.h>
+#include <string.h>
+
#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/internal.h"
#include "libavutil/mathematics.h"
+#include "libavutil/mem.h"
+#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "drawutils.h"
typedef struct {
+ const AVClass *class;
int w, h;
uint8_t color[4];
AVRational time_base;
int line_step[4];
int hsub, vsub; ///< chroma subsampling values
uint64_t pts;
+ char *color_str;
+ char *size_str;
+ char *framerate_str;
} ColorContext;
-static av_cold int color_init(AVFilterContext *ctx, const char *args, void *opaque)
+static av_cold int color_init(AVFilterContext *ctx)
{
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);
+ if (av_parse_video_size(&color->w, &color->h, color->size_str) < 0) {
+ av_log(ctx, AV_LOG_ERROR, "Invalid frame size: %s\n", color->size_str);
return AVERROR(EINVAL);
}
- if (av_parse_video_rate(&frame_rate_q, frame_rate) < 0 ||
+ if (av_parse_video_rate(&frame_rate_q, color->framerate_str) < 0 ||
frame_rate_q.den <= 0 || frame_rate_q.num <= 0) {
- av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\n", frame_rate);
+ av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: %s\n", color->framerate_str);
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)
+ if ((ret = av_parse_color(color->color, color->color_str, -1, ctx)) < 0)
return ret;
return 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
+ static const enum AVPixelFormat pix_fmts[] = {
+ AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA,
+ AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA,
+ AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
+
+ AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P,
+ AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P,
+ AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
+ AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P,
+ AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ440P,
+ AV_PIX_FMT_YUVA420P,
+
+ AV_PIX_FMT_NONE
};
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
return 0;
}
ColorContext *color = ctx->priv;
uint8_t rgba_color[4];
int is_packed_rgba;
- const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format];
+ const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(inlink->format);
color->hsub = pix_desc->log2_chroma_w;
color->vsub = pix_desc->log2_chroma_h;
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_INFO, "w:%d h:%d r:%d/%d color:0x%02x%02x%02x%02x[%s]\n",
+ 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 = avfilter_get_video_buffer(link, AV_PERM_WRITE, color->w, color->h);
- picref->video->pixel_aspect = (AVRational) {1, 1};
- picref->pts = av_rescale_q(color->pts++, color->time_base, AV_TIME_BASE_Q);
- picref->pos = 0;
+ AVFrame *frame = ff_get_video_buffer(link, color->w, color->h);
- avfilter_start_frame(link, avfilter_ref_buffer(picref, ~0));
- ff_draw_rectangle(picref->data, picref->linesize,
+ if (!frame)
+ return AVERROR(ENOMEM);
+
+ frame->sample_aspect_ratio = (AVRational) {1, 1};
+ frame->pts = color->pts++;
+
+ ff_draw_rectangle(frame->data, frame->linesize,
color->line, color->line_step, color->hsub, color->vsub,
0, 0, color->w, color->h);
- avfilter_draw_slice(link, 0, color->h, 1);
- avfilter_end_frame(link);
- avfilter_unref_buffer(picref);
-
- return 0;
+ return ff_filter_frame(link, frame);
}
-AVFilter avfilter_vsrc_color = {
+#define OFFSET(x) offsetof(ColorContext, x)
+#define FLAGS AV_OPT_FLAG_VIDEO_PARAM
+static const AVOption options[] = {
+ { "color", "Output video color", OFFSET(color_str), AV_OPT_TYPE_STRING, { .str = "black" }, .flags = FLAGS },
+ { "size", "Output video size (wxh or an abbreviation)", OFFSET(size_str), AV_OPT_TYPE_STRING, { .str = "320x240" }, .flags = FLAGS },
+ { "framerate", "Output video framerate", OFFSET(framerate_str), AV_OPT_TYPE_STRING, { .str = "25" }, .flags = FLAGS },
+ { NULL },
+};
+
+static const AVClass color_class = {
+ .class_name = "color",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+static const AVFilterPad avfilter_vsrc_color_outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .request_frame = color_request_frame,
+ .config_props = color_config_props
+ },
+ { NULL }
+};
+
+AVFilter ff_vsrc_color = {
.name = "color",
.description = NULL_IF_CONFIG_SMALL("Provide an uniformly colored input, syntax is: [color[:size[:rate]]]"),
+ .priv_class = &color_class,
.priv_size = sizeof(ColorContext),
.init = color_init,
.uninit = color_uninit,
.query_formats = query_formats,
- .inputs = (AVFilterPad[]) {{ .name = NULL}},
+ .inputs = NULL,
- .outputs = (AVFilterPad[]) {{ .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .request_frame = color_request_frame,
- .config_props = color_config_props },
- { .name = NULL}},
+ .outputs = avfilter_vsrc_color_outputs,
};
projects / ffmpeg / blobdiff