543 lines
18 KiB
C
543 lines
18 KiB
C
/*
|
|
* Copyright (c) 2008 vmrsss
|
|
* Copyright (c) 2009 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
|
|
* video padding filter and color source
|
|
*/
|
|
|
|
#include "avfilter.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "libavutil/colorspace.h"
|
|
#include "libavutil/avassert.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 void copy_rectangle(AVFilterBufferRef *outpic,uint8_t *line[4], int line_step[4], int linesize[4],
|
|
int hsub, int vsub, int x, int y, int y2, 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] + linesize[plane]*(i+(y2>>vsub1)), (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
|
|
int x, y; ///< offsets of the input area with respect to the padded area
|
|
int in_w, in_h; ///< width and height for the padded input video, which has to be aligned to the chroma values in order to avoid chroma issues
|
|
|
|
uint8_t color[4]; ///< color expressed either in YUVA or RGBA colorspace for the padding area
|
|
uint8_t *line[4];
|
|
int line_step[4];
|
|
int hsub, vsub; ///< chroma subsampling values
|
|
int needs_copy;
|
|
} PadContext;
|
|
|
|
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
|
|
{
|
|
PadContext *pad = ctx->priv;
|
|
char color_string[128] = "black";
|
|
|
|
if (args)
|
|
sscanf(args, "%d:%d:%d:%d:%s", &pad->w, &pad->h, &pad->x, &pad->y, color_string);
|
|
|
|
if (av_parse_color(pad->color, color_string, -1, ctx) < 0)
|
|
return AVERROR(EINVAL);
|
|
|
|
/* sanity check params */
|
|
if (pad->w < 0 || pad->h < 0) {
|
|
av_log(ctx, AV_LOG_ERROR, "Negative size values are not acceptable.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
{
|
|
PadContext *pad = ctx->priv;
|
|
int i;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
av_freep(&pad->line[i]);
|
|
pad->line_step[i] = 0;
|
|
}
|
|
}
|
|
|
|
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];
|
|
int is_packed_rgba;
|
|
|
|
pad->hsub = pix_desc->log2_chroma_w;
|
|
pad->vsub = pix_desc->log2_chroma_h;
|
|
|
|
if (!pad->w)
|
|
pad->w = inlink->w;
|
|
if (!pad->h)
|
|
pad->h = inlink->h;
|
|
|
|
pad->w &= ~((1 << pad->hsub) - 1);
|
|
pad->h &= ~((1 << pad->vsub) - 1);
|
|
pad->x &= ~((1 << pad->hsub) - 1);
|
|
pad->y &= ~((1 << pad->vsub) - 1);
|
|
|
|
pad->in_w = inlink->w & ~((1 << pad->hsub) - 1);
|
|
pad->in_h = inlink->h & ~((1 << pad->vsub) - 1);
|
|
|
|
memcpy(rgba_color, pad->color, sizeof(rgba_color));
|
|
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 -> w:%d h:%d x:%d y:%d color:0x%02X%02X%02X%02X[%s]\n",
|
|
inlink->w, inlink->h, pad->w, pad->h, pad->x, pad->y,
|
|
pad->color[0], pad->color[1], pad->color[2], pad->color[3],
|
|
is_packed_rgba ? "rgba" : "yuva");
|
|
|
|
if (pad->x < 0 || pad->y < 0 ||
|
|
pad->w <= 0 || pad->h <= 0 ||
|
|
(unsigned)pad->x + (unsigned)inlink->w > pad->w ||
|
|
(unsigned)pad->y + (unsigned)inlink->h > pad->h) {
|
|
av_log(ctx, AV_LOG_ERROR,
|
|
"Input area %d:%d:%d:%d not within the padded area 0:0:%d:%d or zero-sized\n",
|
|
pad->x, pad->y, pad->x + inlink->w, pad->y + inlink->h, pad->w, pad->h);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int config_output(AVFilterLink *outlink)
|
|
{
|
|
PadContext *pad = outlink->src->priv;
|
|
|
|
outlink->w = pad->w;
|
|
outlink->h = pad->h;
|
|
return 0;
|
|
}
|
|
|
|
static AVFilterBufferRef *get_video_buffer(AVFilterLink *inlink, int perms, int w, int h)
|
|
{
|
|
PadContext *pad = inlink->dst->priv;
|
|
|
|
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;
|
|
|
|
picref->video->w = w;
|
|
picref->video->h = h;
|
|
|
|
for (plane = 0; plane < 4 && picref->data[plane]; plane++) {
|
|
int hsub = (plane == 1 || plane == 2) ? pad->hsub : 0;
|
|
int vsub = (plane == 1 || plane == 2) ? pad->vsub : 0;
|
|
|
|
picref->data[plane] += (pad->x >> hsub) * pad->line_step[plane] +
|
|
(pad->y >> vsub) * picref->linesize[plane];
|
|
}
|
|
|
|
return picref;
|
|
}
|
|
|
|
static int does_clip(PadContext *pad, AVFilterBufferRef *outpicref, int plane, int hsub, int vsub, int x, int y)
|
|
{
|
|
int64_t x_in_buf, y_in_buf;
|
|
|
|
x_in_buf = outpicref->data[plane] - outpicref->buf->data[plane]
|
|
+ (x >> hsub) * pad ->line_step[plane]
|
|
+ (y >> vsub) * outpicref->linesize [plane];
|
|
|
|
if(x_in_buf < 0 || x_in_buf % pad->line_step[plane])
|
|
return 1;
|
|
x_in_buf /= pad->line_step[plane];
|
|
|
|
av_assert0(outpicref->buf->linesize[plane]>0); //while reference can use negative linesize the main buffer should not
|
|
|
|
y_in_buf = x_in_buf / outpicref->buf->linesize[plane];
|
|
x_in_buf %= outpicref->buf->linesize[plane];
|
|
|
|
if( y_in_buf<<vsub >= outpicref->buf->h
|
|
|| x_in_buf<<hsub >= outpicref->buf->w)
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static void start_frame(AVFilterLink *inlink, AVFilterBufferRef *inpicref)
|
|
{
|
|
PadContext *pad = inlink->dst->priv;
|
|
AVFilterBufferRef *outpicref = avfilter_ref_buffer(inpicref, ~0);
|
|
int plane;
|
|
|
|
for (plane = 0; plane < 4 && outpicref->data[plane]; plane++) {
|
|
int hsub = (plane == 1 || plane == 2) ? pad->hsub : 0;
|
|
int vsub = (plane == 1 || plane == 2) ? pad->vsub : 0;
|
|
|
|
av_assert0(outpicref->buf->w>0 && outpicref->buf->h>0);
|
|
|
|
if(outpicref->format != outpicref->buf->format) //unsupported currently
|
|
break;
|
|
|
|
outpicref->data[plane] -= (pad->x >> hsub) * pad ->line_step[plane]
|
|
+ (pad->y >> vsub) * outpicref->linesize [plane];
|
|
|
|
if( does_clip(pad, outpicref, plane, hsub, vsub, 0, 0)
|
|
|| does_clip(pad, outpicref, plane, hsub, vsub, 0, pad->h-1)
|
|
|| does_clip(pad, outpicref, plane, hsub, vsub, pad->w-1, 0)
|
|
|| does_clip(pad, outpicref, plane, hsub, vsub, pad->w-1, pad->h-1)
|
|
)
|
|
break;
|
|
}
|
|
pad->needs_copy= plane < 4 && outpicref->data[plane];
|
|
if(pad->needs_copy){
|
|
av_log(inlink->dst, AV_LOG_DEBUG, "Direct padding impossible allocating new frame\n");
|
|
avfilter_unref_buffer(outpicref);
|
|
outpicref = avfilter_get_video_buffer(inlink->dst->outputs[0], AV_PERM_WRITE | AV_PERM_NEG_LINESIZES,
|
|
FFMAX(inlink->w, pad->w),
|
|
FFMAX(inlink->h, pad->h));
|
|
avfilter_copy_buffer_ref_props(outpicref, inpicref);
|
|
}
|
|
|
|
inlink->dst->outputs[0]->out_buf = outpicref;
|
|
|
|
outpicref->video->w = pad->w;
|
|
outpicref->video->h = pad->h;
|
|
|
|
avfilter_start_frame(inlink->dst->outputs[0], outpicref);
|
|
}
|
|
|
|
static void end_frame(AVFilterLink *link)
|
|
{
|
|
avfilter_end_frame(link->dst->outputs[0]);
|
|
avfilter_unref_buffer(link->cur_buf);
|
|
}
|
|
|
|
static void draw_send_bar_slice(AVFilterLink *link, int y, int h, int slice_dir, int before_slice)
|
|
{
|
|
PadContext *pad = link->dst->priv;
|
|
int bar_y, bar_h = 0;
|
|
|
|
if (slice_dir * before_slice == 1 && y == pad->y) {
|
|
/* top bar */
|
|
bar_y = 0;
|
|
bar_h = pad->y;
|
|
} else if (slice_dir * before_slice == -1 && (y + h) == (pad->y + pad->in_h)) {
|
|
/* bottom bar */
|
|
bar_y = pad->y + pad->in_h;
|
|
bar_h = pad->h - pad->in_h - pad->y;
|
|
}
|
|
|
|
if (bar_h) {
|
|
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;
|
|
AVFilterBufferRef *outpic = link->dst->outputs[0]->out_buf;
|
|
AVFilterBufferRef *inpic = link->cur_buf;
|
|
|
|
y += pad->y;
|
|
|
|
y &= ~((1 << pad->vsub) - 1);
|
|
h &= ~((1 << pad->vsub) - 1);
|
|
|
|
if (!h)
|
|
return;
|
|
draw_send_bar_slice(link, y, h, slice_dir, 1);
|
|
|
|
/* left border */
|
|
draw_rectangle(outpic, pad->line, pad->line_step, pad->hsub, pad->vsub,
|
|
0, y, pad->x, h);
|
|
|
|
if(pad->needs_copy){
|
|
copy_rectangle(outpic,
|
|
inpic->data, pad->line_step, inpic->linesize, pad->hsub, pad->vsub,
|
|
pad->x, y, y-pad->y, inpic->video->w, h);
|
|
}
|
|
|
|
/* right border */
|
|
draw_rectangle(outpic, pad->line, pad->line_step, pad->hsub, pad->vsub,
|
|
pad->x + pad->in_w, y, pad->w - pad->x - pad->in_w, h);
|
|
avfilter_draw_slice(link->dst->outputs[0], y, h, slice_dir);
|
|
|
|
draw_send_bar_slice(link, y, h, slice_dir, -1);
|
|
}
|
|
|
|
AVFilter avfilter_vf_pad = {
|
|
.name = "pad",
|
|
.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,
|
|
.uninit = uninit,
|
|
.query_formats = query_formats,
|
|
|
|
.inputs = (AVFilterPad[]) {{ .name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_input,
|
|
.get_video_buffer = get_video_buffer,
|
|
.start_frame = start_frame,
|
|
.draw_slice = draw_slice,
|
|
.end_frame = end_frame, },
|
|
{ .name = NULL}},
|
|
|
|
.outputs = (AVFilterPad[]) {{ .name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.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, -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 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 = AVMEDIA_TYPE_VIDEO,
|
|
.request_frame = color_request_frame,
|
|
.config_props = color_config_props },
|
|
{ .name = NULL}},
|
|
};
|
|
|
|
#endif /* CONFIG_COLOR_FILTER */
|