static int config_props(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
TileContext *tile = ctx->priv;
AVFilterLink *inlink = ctx->inputs[0];
if (inlink->w > INT_MAX / tile->w) {
av_log(ctx, AV_LOG_ERROR, "Total width %ux%u is too much.\n",
tile->w, inlink->w);
return AVERROR(EINVAL);
}
if (inlink->h > INT_MAX / tile->h) {
av_log(ctx, AV_LOG_ERROR, "Total height %ux%u is too much.\n",
tile->h, inlink->h);
return AVERROR(EINVAL);
}
outlink->w = tile->w * inlink->w;
outlink->h = tile->h * inlink->h;
outlink->sample_aspect_ratio = inlink->sample_aspect_ratio;
outlink->frame_rate = av_mul_q(inlink->frame_rate,
(AVRational){ 1, tile->w * tile->h });
ff_draw_init(&tile->draw, inlink->format, 0);
/* TODO make the color an option, or find an unified way of choosing it */
ff_draw_color(&tile->draw, &tile->blank, (uint8_t[]){ 0, 0, 0, -1 });
return 0;
}
int main(void)
{
enum AVPixelFormat f;
const AVPixFmtDescriptor *desc;
FFDrawContext draw;
FFDrawColor color;
int r, i;
for (f = 0; av_pix_fmt_desc_get(f); f++) {
desc = av_pix_fmt_desc_get(f);
if (!desc->name)
continue;
printf("Testing %s...%*s", desc->name,
(int)(16 - strlen(desc->name)), "");
r = ff_draw_init(&draw, f, 0);
if (r < 0) {
char buf[128];
av_strerror(r, buf, sizeof(buf));
printf("no: %s\n", buf);
continue;
}
ff_draw_color(&draw, &color, (uint8_t[]) { 1, 0, 0, 1 });
for (i = 0; i < sizeof(color); i++)
if (((uint8_t *)&color)[i] != 128)
break;
if (i == sizeof(color)) {
printf("fallback color\n");
continue;
}
printf("ok\n");
}
return 0;
}
static int config_input(AVFilterLink *inlink)
{
AssContext *ass = inlink->dst->priv;
ff_draw_init(&ass->draw, inlink->format, ass->alpha ? FF_DRAW_PROCESS_ALPHA : 0);
ass_set_frame_size (ass->renderer, inlink->w, inlink->h);
if (ass->original_w && ass->original_h)
ass_set_aspect_ratio(ass->renderer, (double)inlink->w / inlink->h,
(double)ass->original_w / ass->original_h);
if (ass->shaping != -1)
ass_set_shaper(ass->renderer, ass->shaping);
return 0;
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
DrawTextContext *s = ctx->priv;
int ret;
ff_draw_init(&s->dc, inlink->format, FF_DRAW_PROCESS_ALPHA);
ff_draw_color(&s->dc, &s->fontcolor, s->fontcolor.rgba);
ff_draw_color(&s->dc, &s->shadowcolor, s->shadowcolor.rgba);
ff_draw_color(&s->dc, &s->bordercolor, s->bordercolor.rgba);
ff_draw_color(&s->dc, &s->boxcolor, s->boxcolor.rgba);
s->var_values[VAR_w] = s->var_values[VAR_W] = s->var_values[VAR_MAIN_W] = inlink->w;
s->var_values[VAR_h] = s->var_values[VAR_H] = s->var_values[VAR_MAIN_H] = inlink->h;
s->var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ? av_q2d(inlink->sample_aspect_ratio) : 1;
s->var_values[VAR_DAR] = (double)inlink->w / inlink->h * s->var_values[VAR_SAR];
s->var_values[VAR_HSUB] = 1 << s->dc.hsub_max;
s->var_values[VAR_VSUB] = 1 << s->dc.vsub_max;
s->var_values[VAR_X] = NAN;
s->var_values[VAR_Y] = NAN;
s->var_values[VAR_T] = NAN;
av_lfg_init(&s->prng, av_get_random_seed());
av_expr_free(s->x_pexpr);
av_expr_free(s->y_pexpr);
s->x_pexpr = s->y_pexpr = NULL;
if ((ret = av_expr_parse(&s->x_pexpr, s->x_expr, var_names,
NULL, NULL, fun2_names, fun2, 0, ctx)) < 0 ||
(ret = av_expr_parse(&s->y_pexpr, s->y_expr, var_names,
NULL, NULL, fun2_names, fun2, 0, ctx)) < 0 ||
(ret = av_expr_parse(&s->a_pexpr, s->a_expr, var_names,
NULL, NULL, fun2_names, fun2, 0, ctx)) < 0)
return AVERROR(EINVAL);
return 0;
}
static int color_config_props(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->src;
ColorContext *color = ctx->priv;
ff_draw_init(&color->draw, inlink->format, 0);
ff_draw_color(&color->draw, &color->color, color->color_rgba);
color->w = ff_draw_round_to_sub(&color->draw, 0, -1, color->w);
color->h = ff_draw_round_to_sub(&color->draw, 1, -1, color->h);
if (av_image_check_size(color->w, color->h, 0, ctx) < 0)
return AVERROR(EINVAL);
av_log(ctx, AV_LOG_INFO, "w:%d h:%d r:%d/%d color:0x%02x%02x%02x%02x\n",
color->w, color->h, color->time_base.den, color->time_base.num,
color->color_rgba[0], color->color_rgba[1], color->color_rgba[2], color->color_rgba[3]);
inlink->w = color->w;
inlink->h = color->h;
inlink->time_base = color->time_base;
return 0;
}
int rotate_filter_frame(RotContext *rot, AVFrame *in,int frame_count_out, AVFrame* &out)
{
int angle_int, s, c, plane;
double res;
rot->var_values[ROTATE_VAR_N] = frame_count_out;
rot->var_values[ROTATE_VAR_T] = 0;//TS2T(in->pts, inlink->time_base);
rot->angle = res = av_expr_eval(rot->angle_expr, rot->var_values, rot);
av_log(NULL, AV_LOG_DEBUG, "n:%f time:%f angle:%f/PI\n",
rot->var_values[ROTATE_VAR_N], rot->var_values[ROTATE_VAR_T], rot->angle/M_PI);
qDebug()<<"rotate_filter_frame n:"<<rot->var_values[ROTATE_VAR_N]
<<" time:"<< rot->var_values[ROTATE_VAR_T] <<" angle(/PI): "<<(rot->angle/M_PI);
angle_int = res * FIXP * 16;
s = int_sin(angle_int);
c = int_sin(angle_int + INT_PI/2);
/* fill background */
if (rot->fillcolor_enable)
ff_fill_rectangle(&rot->draw, &rot->color, out->data, out->linesize,
0, 0, out->width, out->height);
for (plane = 0; plane < rot->nb_planes; plane++) {
int hsub = plane == 1 || plane == 2 ? rot->hsub : 0;
int vsub = plane == 1 || plane == 2 ? rot->vsub : 0;
const int outw = AV_CEIL_RSHIFT(out->width, hsub);
const int outh = AV_CEIL_RSHIFT(out->height, vsub);
#if 0
ThreadData td = { .in = in, .out = out,
.inw = AV_CEIL_RSHIFT(in->width, hsub),
.inh = AV_CEIL_RSHIFT(in->height, vsub),
.outh = outh, .outw = outw,
.xi = -(outw-1) * c / 2, .yi = (outw-1) * s / 2,
.xprime = -(outh-1) * s / 2,
.yprime = -(outh-1) * c / 2,
.plane = plane, .c = c, .s = s };
#endif
ThreadData td;
td.in = in; td.out = out;
td.inw = AV_CEIL_RSHIFT(in->width, hsub);
td.inh = AV_CEIL_RSHIFT(in->height, vsub);
td.outh = outh; td.outw = outw;
td.xi = -(outw-1) * c / 2; td.yi = (outw-1) * s / 2;
td.xprime = -(outh-1) * s / 2;
td.yprime = -(outh-1) * c / 2;
td.plane = plane; td.c = c; td.s = s;
filter_slice(rot, &td, 0, 1);
}
return 0;
}
int rotate_config_props(RotContext *rot, AVFrame *in)
{
const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get((AVPixelFormat)in->format);
int ret;
double res;
char *expr;
qDebug()<<"rotate_config_props foramt: "<<in->format;
ff_draw_init(&rot->draw, (AVPixelFormat)in->format, 0);
ff_draw_color(&rot->draw, &rot->color, rot->fillcolor);
rot->hsub = pixdesc->log2_chroma_w;
rot->vsub = pixdesc->log2_chroma_h;
if (pixdesc->comp[0].depth == 8)
rot->interpolate_bilinear = interpolate_bilinear8;
else
rot->interpolate_bilinear = interpolate_bilinear16;
rot->var_values[ROTATE_VAR_IN_W] = rot->var_values[ROTATE_VAR_IW] = in->width;
rot->var_values[ROTATE_VAR_IN_H] = rot->var_values[ROTATE_VAR_IH] = in->height;
rot->var_values[ROTATE_VAR_HSUB] = 1<<rot->hsub;
rot->var_values[ROTATE_VAR_VSUB] = 1<<rot->vsub;
rot->var_values[ROTATE_VAR_N] = NAN;
rot->var_values[ROTATE_VAR_T] = NAN;
rot->var_values[ROTATE_VAR_OUT_W] = rot->var_values[ROTATE_VAR_OW] = NAN;
rot->var_values[ROTATE_VAR_OUT_H] = rot->var_values[ROTATE_VAR_OH] = NAN;
av_expr_free(rot->angle_expr);
rot->angle_expr = NULL;
if ((ret = av_expr_parse(&rot->angle_expr, expr = rot->angle_expr_str, var_names,
func1_names, func1, NULL, NULL, 0, NULL)) < 0) {
av_log(NULL, AV_LOG_ERROR,
"Error occurred parsing angle expression '%s'\n", rot->angle_expr_str);
return ret;
}
#define SET_SIZE_EXPR(name, opt_name) do { \
ret = av_expr_parse_and_eval(&res, expr = rot->name##_expr_str, \
var_names, rot->var_values, \
func1_names, func1, NULL, NULL, rot, 0, NULL); \
if (ret < 0 || isnan(res) || isinf(res) || res <= 0) { \
av_log(NULL, AV_LOG_ERROR, \
"Error parsing or evaluating expression for option %s: " \
"invalid expression '%s' or non-positive or indefinite value %f\n", \
opt_name, expr, res); \
return ret; \
} \
} while (0)
/* evaluate width and height */
av_expr_parse_and_eval(&res, expr = rot->outw_expr_str, var_names, rot->var_values,
func1_names, func1, NULL, NULL, rot, 0, NULL);
rot->var_values[ROTATE_VAR_OUT_W] = rot->var_values[ROTATE_VAR_OW] = res;
rot->outw = res + 0.5;
SET_SIZE_EXPR(outh, "out_h");
rot->var_values[ROTATE_VAR_OUT_H] = rot->var_values[ROTATE_VAR_OH] = res;
rot->outh = res + 0.5;
/* evaluate the width again, as it may depend on the evaluated output height */
SET_SIZE_EXPR(outw, "out_w");
rot->var_values[ROTATE_VAR_OUT_W] = rot->var_values[ROTATE_VAR_OW] = res;
rot->outw = res + 0.5;
/* compute number of planes */
rot->nb_planes = av_pix_fmt_count_planes((AVPixelFormat)in->format);
////out->width = rot->outw;
////outlink->h = rot->outh;
return 0;
}
static int config_out_props(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
AVFilterLink *inlink = outlink->src->inputs[0];
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format);
TInterlaceContext *tinterlace = ctx->priv;
int i;
tinterlace->vsub = desc->log2_chroma_h;
outlink->w = inlink->w;
outlink->h = tinterlace->mode == MODE_MERGE || tinterlace->mode == MODE_PAD || tinterlace->mode == MODE_MERGEX2?
inlink->h*2 : inlink->h;
if (tinterlace->mode == MODE_MERGE || tinterlace->mode == MODE_PAD || tinterlace->mode == MODE_MERGEX2)
outlink->sample_aspect_ratio = av_mul_q(inlink->sample_aspect_ratio,
av_make_q(2, 1));
if (tinterlace->mode == MODE_PAD) {
uint8_t black[4] = { 0, 0, 0, 16 };
int ret;
ff_draw_init(&tinterlace->draw, outlink->format, 0);
ff_draw_color(&tinterlace->draw, &tinterlace->color, black);
if (ff_fmt_is_in(outlink->format, full_scale_yuvj_pix_fmts))
tinterlace->color.comp[0].u8[0] = 0;
ret = av_image_alloc(tinterlace->black_data, tinterlace->black_linesize,
outlink->w, outlink->h, outlink->format, 16);
if (ret < 0)
return ret;
ff_fill_rectangle(&tinterlace->draw, &tinterlace->color, tinterlace->black_data,
tinterlace->black_linesize, 0, 0, outlink->w, outlink->h);
}
if (tinterlace->flags & (TINTERLACE_FLAG_VLPF | TINTERLACE_FLAG_CVLPF)
&& !(tinterlace->mode == MODE_INTERLEAVE_TOP
|| tinterlace->mode == MODE_INTERLEAVE_BOTTOM)) {
av_log(ctx, AV_LOG_WARNING, "low_pass_filter flags ignored with mode %d\n",
tinterlace->mode);
tinterlace->flags &= ~(TINTERLACE_FLAG_VLPF | TINTERLACE_FLAG_CVLPF);
}
tinterlace->preout_time_base = inlink->time_base;
if (tinterlace->mode == MODE_INTERLACEX2) {
tinterlace->preout_time_base.den *= 2;
outlink->frame_rate = av_mul_q(inlink->frame_rate, (AVRational){2,1});
outlink->time_base = av_mul_q(inlink->time_base , (AVRational){1,2});
} else if (tinterlace->mode == MODE_MERGEX2) {
outlink->frame_rate = inlink->frame_rate;
outlink->time_base = inlink->time_base;
} else if (tinterlace->mode != MODE_PAD) {
outlink->frame_rate = av_mul_q(inlink->frame_rate, (AVRational){1,2});
outlink->time_base = av_mul_q(inlink->time_base , (AVRational){2,1});
}
for (i = 0; i<FF_ARRAY_ELEMS(standard_tbs); i++){
if (!av_cmp_q(standard_tbs[i], outlink->time_base))
break;
}
if (i == FF_ARRAY_ELEMS(standard_tbs) ||
(tinterlace->flags & TINTERLACE_FLAG_EXACT_TB))
outlink->time_base = tinterlace->preout_time_base;
tinterlace->csp = av_pix_fmt_desc_get(outlink->format);
if (tinterlace->flags & TINTERLACE_FLAG_CVLPF) {
if (tinterlace->csp->comp[0].depth > 8)
tinterlace->lowpass_line = lowpass_line_complex_c_16;
else
tinterlace->lowpass_line = lowpass_line_complex_c;
if (ARCH_X86)
ff_tinterlace_init_x86(tinterlace);
} else if (tinterlace->flags & TINTERLACE_FLAG_VLPF) {
if (tinterlace->csp->comp[0].depth > 8)
tinterlace->lowpass_line = lowpass_line_c_16;
else
tinterlace->lowpass_line = lowpass_line_c;
if (ARCH_X86)
ff_tinterlace_init_x86(tinterlace);
}
av_log(ctx, AV_LOG_VERBOSE, "mode:%d filter:%s h:%d -> h:%d\n", tinterlace->mode,
(tinterlace->flags & TINTERLACE_FLAG_CVLPF) ? "complex" :
(tinterlace->flags & TINTERLACE_FLAG_VLPF) ? "linear" : "off",
inlink->h, outlink->h);
return 0;
}