* Copyright (c) 2008 vmrsss
* Copyright (c) 2009 Stefano Sabatini
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "internal.h"
#include "video.h"
#include "libavutil/avstring.h"
+#include "libavutil/common.h"
#include "libavutil/eval.h"
#include "libavutil/pixdesc.h"
#include "libavutil/colorspace.h"
#include "drawutils.h"
static const char *const var_names[] = {
- "PI",
- "PHI",
- "E",
"in_w", "iw",
"in_h", "ih",
"out_w", "ow",
"x",
"y",
"a",
+ "sar",
+ "dar",
"hsub",
"vsub",
NULL
};
enum var_name {
- VAR_PI,
- VAR_PHI,
- VAR_E,
VAR_IN_W, VAR_IW,
VAR_IN_H, VAR_IH,
VAR_OUT_W, VAR_OW,
VAR_X,
VAR_Y,
VAR_A,
+ VAR_SAR,
+ VAR_DAR,
VAR_HSUB,
VAR_VSUB,
VARS_NB
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));
+ ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
return 0;
}
char x_expr[256]; ///< width expression string
char y_expr[256]; ///< height expression string
- 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
+ uint8_t rgba_color[4]; ///< color for the padding area
+ FFDrawContext draw;
+ FFDrawColor color;
int needs_copy;
} PadContext;
av_strlcpy(pad->y_expr, "0" , sizeof(pad->h_expr));
if (args)
- sscanf(args, "%255[^:]:%255[^:]:%255[^:]:%255[^:]:%255s",
+ sscanf(args, "%255[^:]:%255[^:]:%255[^:]:%255[^:]:%127s",
pad->w_expr, pad->h_expr, pad->x_expr, pad->y_expr, color_string);
- if (av_parse_color(pad->color, color_string, -1, ctx) < 0)
+ if (av_parse_color(pad->rgba_color, color_string, -1, ctx) < 0)
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 ret, is_packed_rgba;
+ int ret;
double var_values[VARS_NB], res;
char *expr;
- pad->hsub = pix_desc->log2_chroma_w;
- pad->vsub = pix_desc->log2_chroma_h;
+ ff_draw_init(&pad->draw, inlink->format, 0);
+ ff_draw_color(&pad->draw, &pad->color, pad->rgba_color);
- var_values[VAR_PI] = M_PI;
- var_values[VAR_PHI] = M_PHI;
- var_values[VAR_E] = M_E;
var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w;
var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h;
var_values[VAR_OUT_W] = var_values[VAR_OW] = NAN;
var_values[VAR_OUT_H] = var_values[VAR_OH] = NAN;
var_values[VAR_A] = (float) inlink->w / inlink->h;
- var_values[VAR_HSUB] = 1<<pad->hsub;
- var_values[VAR_VSUB] = 1<<pad->vsub;
+ var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ?
+ (float) inlink->sample_aspect_ratio.num / inlink->sample_aspect_ratio.den : 1;
+ var_values[VAR_DAR] = var_values[VAR_A] * var_values[VAR_SAR];
+ var_values[VAR_HSUB] = 1 << pad->draw.hsub_max;
+ var_values[VAR_VSUB] = 1 << pad->draw.vsub_max;
/* evaluate width and height */
av_expr_parse_and_eval(&res, (expr = pad->w_expr),
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);
+ pad->w = ff_draw_round_to_sub(&pad->draw, 0, -1, pad->w);
+ pad->h = ff_draw_round_to_sub(&pad->draw, 1, -1, pad->h);
+ pad->x = ff_draw_round_to_sub(&pad->draw, 0, -1, pad->x);
+ pad->y = ff_draw_round_to_sub(&pad->draw, 1, -1, pad->y);
+ pad->in_w = ff_draw_round_to_sub(&pad->draw, 0, -1, inlink->w);
+ pad->in_h = ff_draw_round_to_sub(&pad->draw, 1, -1, inlink->h);
- memcpy(rgba_color, pad->color, sizeof(rgba_color));
- ff_fill_line_with_color(pad->line, pad->line_step, pad->w, pad->color,
- inlink->format, rgba_color, &is_packed_rgba, NULL);
-
- av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d x:%d y:%d color:0x%02X%02X%02X%02X[%s]\n",
+ av_log(ctx, AV_LOG_VERBOSE, "w:%d h:%d -> w:%d h:%d x:%d y:%d color:0x%02X%02X%02X%02X\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");
+ pad->rgba_color[0], pad->rgba_color[1], pad->rgba_color[2], pad->rgba_color[3]);
if (pad->x < 0 || pad->y < 0 ||
pad->w <= 0 || pad->h <= 0 ||
static AVFilterBufferRef *get_video_buffer(AVFilterLink *inlink, int perms, int w, int h)
{
PadContext *pad = inlink->dst->priv;
+ int align = (perms&AV_PERM_ALIGN) ? AVFILTER_ALIGN : 1;
AVFilterBufferRef *picref = ff_get_video_buffer(inlink->dst->outputs[0], perms,
- w + (pad->w - pad->in_w),
+ w + (pad->w - pad->in_w) + 4*align,
h + (pad->h - pad->in_h));
int plane;
+ if (!picref)
+ return NULL;
+
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];
- }
+ for (plane = 0; plane < 4 && picref->data[plane]; plane++)
+ picref->data[plane] += FFALIGN(pad->x >> pad->draw.hsub[plane], align) * pad->draw.pixelstep[plane] +
+ (pad->y >> pad->draw.vsub[plane]) * picref->linesize[plane];
return picref;
}
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];
+ + (x >> hsub) * pad->draw.pixelstep[plane]
+ + (y >> vsub) * outpicref->linesize[plane];
- if(x_in_buf < 0 || x_in_buf % pad->line_step[plane])
+ if(x_in_buf < 0 || x_in_buf % pad->draw.pixelstep[plane])
return 1;
- x_in_buf /= pad->line_step[plane];
+ x_in_buf /= pad->draw.pixelstep[plane];
av_assert0(outpicref->buf->linesize[plane]>0); //while reference can use negative linesize the main buffer should not
if (!outpicref)
return AVERROR(ENOMEM);
- 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;
+ for (plane = 0; plane < 4 && outpicref->data[plane] && pad->draw.pixelstep[plane]; plane++) {
+ int hsub = pad->draw.hsub[plane];
+ int vsub = pad->draw.vsub[plane];
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];
+ outpicref->data[plane] -= (pad->x >> hsub) * pad->draw.pixelstep[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)
)
break;
}
- pad->needs_copy= plane < 4 && outpicref->data[plane];
+ pad->needs_copy= plane < 4 && outpicref->data[plane] || !(outpicref->perms & AV_PERM_WRITE);
if(pad->needs_copy){
av_log(inlink->dst, AV_LOG_DEBUG, "Direct padding impossible allocating new frame\n");
avfilter_unref_buffer(outpicref);
return ret;
}
-static int end_frame(AVFilterLink *link)
-{
- return ff_end_frame(link->dst->outputs[0]);
-}
-
static int draw_send_bar_slice(AVFilterLink *link, int y, int h, int slice_dir, int before_slice)
{
PadContext *pad = link->dst->priv;
}
if (bar_h) {
- ff_draw_rectangle(link->dst->outputs[0]->out_buf->data,
+ ff_fill_rectangle(&pad->draw, &pad->color,
+ link->dst->outputs[0]->out_buf->data,
link->dst->outputs[0]->out_buf->linesize,
- pad->line, pad->line_step, pad->hsub, pad->vsub,
0, bar_y, pad->w, bar_h);
ret = ff_draw_slice(link->dst->outputs[0], bar_y, bar_h, slice_dir);
}
y += pad->y;
- y &= ~((1 << pad->vsub) - 1);
- h &= ~((1 << pad->vsub) - 1);
+ y = ff_draw_round_to_sub(&pad->draw, 1, -1, y);
+ h = ff_draw_round_to_sub(&pad->draw, 1, -1, h);
if (!h)
return 0;
draw_send_bar_slice(link, y, h, slice_dir, 1);
/* left border */
- ff_draw_rectangle(outpic->data, outpic->linesize, pad->line, pad->line_step,
- pad->hsub, pad->vsub, 0, y, pad->x, h);
+ ff_fill_rectangle(&pad->draw, &pad->color, outpic->data, outpic->linesize,
+ 0, y, pad->x, h);
if(pad->needs_copy){
- ff_copy_rectangle(outpic->data, outpic->linesize,
- inpic->data, inpic->linesize, pad->line_step,
- pad->hsub, pad->vsub,
- pad->x, y, y-pad->y, inpic->video->w, h);
+ ff_copy_rectangle2(&pad->draw,
+ outpic->data, outpic->linesize,
+ inpic ->data, inpic ->linesize,
+ pad->x, y, 0, y - pad->y, inpic->video->w, h);
}
/* right border */
- ff_draw_rectangle(outpic->data, outpic->linesize,
- pad->line, pad->line_step, pad->hsub, pad->vsub,
+ ff_fill_rectangle(&pad->draw, &pad->color, outpic->data, outpic->linesize,
pad->x + pad->in_w, y, pad->w - pad->x - pad->in_w, h);
ret = ff_draw_slice(link->dst->outputs[0], y, h, slice_dir);
if (ret < 0)
.priv_size = sizeof(PadContext),
.init = init,
- .uninit = uninit,
.query_formats = query_formats,
.inputs = (const AVFilterPad[]) {{ .name = "default",
.config_props = config_input,
.get_video_buffer = get_video_buffer,
.start_frame = start_frame,
- .draw_slice = draw_slice,
- .end_frame = end_frame, },
+ .draw_slice = draw_slice, },
{ .name = NULL}},
.outputs = (const AVFilterPad[]) {{ .name = "default",
projects / ffmpeg / blobdiff