/**
* @file
- * video padding filter
+ * video padding filter and color source
*/
#include "avfilter.h"
#include "parseutils.h"
#include "libavutil/pixdesc.h"
-#include "libavcodec/colorspace.h"
+#include "libavutil/colorspace.h"
+#include "libavcore/imgutils.h"
+#include "libavcore/parseutils.h"
+
+enum { RED = 0, GREEN, BLUE, ALPHA };
+
+static int fill_line_with_color(uint8_t *line[4], int line_step[4], int w, uint8_t color[4],
+ enum PixelFormat pix_fmt, uint8_t rgba_color[4], int *is_packed_rgba)
+{
+ uint8_t rgba_map[4] = {0};
+ int i;
+ const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
+ int hsub = pix_desc->log2_chroma_w;
+
+ *is_packed_rgba = 1;
+ switch (pix_fmt) {
+ case PIX_FMT_ARGB: rgba_map[ALPHA] = 0; rgba_map[RED ] = 1; rgba_map[GREEN] = 2; rgba_map[BLUE ] = 3; break;
+ case PIX_FMT_ABGR: rgba_map[ALPHA] = 0; rgba_map[BLUE ] = 1; rgba_map[GREEN] = 2; rgba_map[RED ] = 3; break;
+ case PIX_FMT_RGBA:
+ case PIX_FMT_RGB24: rgba_map[RED ] = 0; rgba_map[GREEN] = 1; rgba_map[BLUE ] = 2; rgba_map[ALPHA] = 3; break;
+ case PIX_FMT_BGRA:
+ case PIX_FMT_BGR24: rgba_map[BLUE ] = 0; rgba_map[GREEN] = 1; rgba_map[RED ] = 2; rgba_map[ALPHA] = 3; break;
+ default:
+ *is_packed_rgba = 0;
+ }
+
+ if (*is_packed_rgba) {
+ line_step[0] = (av_get_bits_per_pixel(pix_desc))>>3;
+ for (i = 0; i < 4; i++)
+ color[rgba_map[i]] = rgba_color[i];
+
+ line[0] = av_malloc(w * line_step[0]);
+ for (i = 0; i < w; i++)
+ memcpy(line[0] + i * line_step[0], color, line_step[0]);
+ } else {
+ int plane;
+
+ color[RED ] = RGB_TO_Y_CCIR(rgba_color[0], rgba_color[1], rgba_color[2]);
+ color[GREEN] = RGB_TO_U_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
+ color[BLUE ] = RGB_TO_V_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
+ color[ALPHA] = rgba_color[3];
+
+ for (plane = 0; plane < 4; plane++) {
+ int line_size;
+ int hsub1 = (plane == 1 || plane == 2) ? hsub : 0;
+
+ line_step[plane] = 1;
+ line_size = (w >> hsub1) * line_step[plane];
+ line[plane] = av_malloc(line_size);
+ memset(line[plane], color[plane], line_size);
+ }
+ }
+
+ return 0;
+}
+
+static void draw_rectangle(AVFilterBufferRef *outpic, uint8_t *line[4], int line_step[4],
+ int hsub, int vsub, int x, int y, int w, int h)
+{
+ int i, plane;
+ uint8_t *p;
+
+ for (plane = 0; plane < 4 && outpic->data[plane]; plane++) {
+ int hsub1 = plane == 1 || plane == 2 ? hsub : 0;
+ int vsub1 = plane == 1 || plane == 2 ? vsub : 0;
+
+ p = outpic->data[plane] + (y >> vsub1) * outpic->linesize[plane];
+ for (i = 0; i < (h >> vsub1); i++) {
+ memcpy(p + (x >> hsub1) * line_step[plane], line[plane], (w >> hsub1) * line_step[plane]);
+ p += outpic->linesize[plane];
+ }
+ }
+}
+
+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
+ };
+
+ avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
+ return 0;
+}
+
+#if CONFIG_PAD_FILTER
typedef struct {
int w, h; ///< output dimensions, a value of 0 will result in the input size
}
}
-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
- };
-
- avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
- return 0;
-}
-
-enum { RED = 0, GREEN, BLUE, ALPHA };
-
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
PadContext *pad = ctx->priv;
const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[inlink->format];
uint8_t rgba_color[4];
- uint8_t rgba_map[4] = {0};
- int i, is_packed_rgb = 1;
-
- switch (inlink->format) {
- case PIX_FMT_ARGB:
- rgba_map[ALPHA] = 0; rgba_map[RED] = 1; rgba_map[GREEN] = 2; rgba_map[BLUE] = 3;
- break;
- case PIX_FMT_ABGR:
- rgba_map[ALPHA] = 0; rgba_map[BLUE] = 1; rgba_map[GREEN] = 2; rgba_map[RED] = 3;
- break;
- case PIX_FMT_RGBA:
- case PIX_FMT_RGB24:
- rgba_map[RED] = 0; rgba_map[GREEN] = 1; rgba_map[BLUE] = 2; rgba_map[ALPHA] = 3;
- break;
- case PIX_FMT_BGRA:
- case PIX_FMT_BGR24:
- rgba_map[BLUE] = 0; rgba_map[GREEN] = 1; rgba_map[RED] = 2; rgba_map[ALPHA] = 3;
- break;
- default:
- is_packed_rgb = 0;
- }
+ int is_packed_rgba;
pad->hsub = pix_desc->log2_chroma_w;
pad->vsub = pix_desc->log2_chroma_h;
pad->in_h = inlink->h & ~((1 << pad->vsub) - 1);
memcpy(rgba_color, pad->color, sizeof(rgba_color));
- if (is_packed_rgb) {
- pad->line_step[0] = (av_get_bits_per_pixel(&av_pix_fmt_descriptors[inlink->format]))>>3;
- for (i = 0; i < 4; i++)
- pad->color[rgba_map[i]] = rgba_color[i];
-
- pad->line[0] = av_malloc(pad->w * pad->line_step[0]);
- for (i = 0; i < pad->w; i++)
- memcpy(pad->line[0] + i * pad->line_step[0], pad->color, pad->line_step[0]);
- } else {
- int plane;
-
- pad->color[0] = RGB_TO_Y_CCIR(rgba_color[0], rgba_color[1], rgba_color[2]);
- pad->color[1] = RGB_TO_U_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
- pad->color[2] = RGB_TO_V_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
- pad->color[3] = rgba_color[3];
-
- for (plane = 0; plane < 4; plane++) {
- int line_size;
- int hsub = (plane == 1 || plane == 2) ? pad->hsub : 0;
-
- pad->line_step[plane] = 1;
- line_size = (pad->w >> hsub) * pad->line_step[plane];
- pad->line[plane] = av_malloc(line_size);
- memset(pad->line[plane], pad->color[plane], line_size);
- }
- }
+ fill_line_with_color(pad->line, pad->line_step, pad->w, pad->color,
+ inlink->format, rgba_color, &is_packed_rgba);
av_log(ctx, AV_LOG_INFO, "w:%d h:%d x:%d y:%d color:0x%02X%02X%02X%02X[%s]\n",
pad->w, pad->h, pad->x, pad->y,
pad->color[0], pad->color[1], pad->color[2], pad->color[3],
- is_packed_rgb ? "rgba" : "yuva");
+ is_packed_rgba ? "rgba" : "yuva");
if (pad->x < 0 || pad->y < 0 ||
pad->w <= 0 || pad->h <= 0 ||
return 0;
}
-static AVFilterPicRef *get_video_buffer(AVFilterLink *inlink, int perms, int w, int h)
+static AVFilterBufferRef *get_video_buffer(AVFilterLink *inlink, int perms, int w, int h)
{
PadContext *pad = inlink->dst->priv;
- AVFilterPicRef *picref = avfilter_get_video_buffer(inlink->dst->outputs[0], perms,
+ AVFilterBufferRef *picref = avfilter_get_video_buffer(inlink->dst->outputs[0], perms,
w + (pad->w - pad->in_w),
h + (pad->h - pad->in_h));
int plane;
return picref;
}
-static void start_frame(AVFilterLink *inlink, AVFilterPicRef *inpicref)
+static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
{
PadContext *pad = inlink->dst->priv;
- AVFilterPicRef *outpicref = avfilter_ref_pic(inpicref, ~0);
+ AVFilterBufferRef *outpicref = avfilter_ref_buffer(inpicref, ~0);
int plane;
- inlink->dst->outputs[0]->outpic = outpicref;
+ inlink->dst->outputs[0]->out_buf = outpicref;
for (plane = 0; plane < 4 && outpicref->data[plane]; plane++) {
int hsub = (plane == 1 || plane == 2) ? pad->hsub : 0;
static void end_frame(AVFilterLink *link)
{
avfilter_end_frame(link->dst->outputs[0]);
- avfilter_unref_pic(link->cur_pic);
-}
-
-static void draw_rectangle(AVFilterPicRef *outpic, uint8_t *line[4], int line_step[4],
- int hsub, int vsub, int x, int y, int w, int h)
-{
- int i, plane;
- uint8_t *p;
-
- for (plane = 0; plane < 4 && outpic->data[plane]; plane++) {
- int hsub1 = plane == 1 || plane == 2 ? hsub : 0;
- int vsub1 = plane == 1 || plane == 2 ? vsub : 0;
-
- p = outpic->data[plane] + (y >> vsub1) * outpic->linesize[plane];
- for (i = 0; i < (h >> vsub1); i++) {
- memcpy(p + (x >> hsub1) * line_step[plane], line[plane], (w >> hsub1) * line_step[plane]);
- p += outpic->linesize[plane];
- }
- }
+ avfilter_unref_buffer(link->cur_buf);
}
static void draw_send_bar_slice(AVFilterLink *link, int y, int h, int slice_dir, int before_slice)
}
if (bar_h) {
- draw_rectangle(link->dst->outputs[0]->outpic,
+ draw_rectangle(link->dst->outputs[0]->out_buf,
pad->line, pad->line_step, pad->hsub, pad->vsub,
0, bar_y, pad->w, bar_h);
avfilter_draw_slice(link->dst->outputs[0], bar_y, bar_h, slice_dir);
static void draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
{
PadContext *pad = link->dst->priv;
- AVFilterPicRef *outpic = link->dst->outputs[0]->outpic;
+ AVFilterBufferRef *outpic = link->dst->outputs[0]->out_buf;
y += pad->y;
AVFilter avfilter_vf_pad = {
.name = "pad",
- .description = NULL_IF_CONFIG_SMALL("Add paddings to the input image."),
+ .description = NULL_IF_CONFIG_SMALL("Pad input image to width:height[:x:y[:color]] (default x and y: 0, default color: black)."),
.priv_size = sizeof(PadContext),
.init = init,
.config_props = config_output, },
{ .name = NULL}},
};
+
+#endif /* CONFIG_PAD_FILTER */
+
+#if CONFIG_COLOR_FILTER
+
+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, void *opaque)
+{
+ 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, 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 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));
+ fill_line_with_color(color->line, color->line_step, color->w, color->color,
+ inlink->format, rgba_color, &is_packed_rgba);
+
+ av_log(ctx, AV_LOG_INFO, "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;
+
+ 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;
+
+ avfilter_start_frame(link, avfilter_ref_buffer(picref, ~0));
+ draw_rectangle(picref,
+ 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;
+}
+
+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 = (AVFilterPad[]) {{ .name = NULL}},
+
+ .outputs = (AVFilterPad[]) {{ .name = "default",
+ .type = CODEC_TYPE_VIDEO,
+ .request_frame = color_request_frame,
+ .config_props = color_config_props },
+ { .name = NULL}},
+};
+
+#endif /* CONFIG_COLOR_FILTER */
projects / ffmpeg / blobdiff