diff options
Diffstat (limited to 'libavfilter/vf_pad.c')
-rw-r--r-- | libavfilter/vf_pad.c | 138 |
1 files changed, 69 insertions, 69 deletions
diff --git a/libavfilter/vf_pad.c b/libavfilter/vf_pad.c index 3407679..0a2ab33 100644 --- a/libavfilter/vf_pad.c +++ b/libavfilter/vf_pad.c @@ -96,9 +96,9 @@ typedef struct { static av_cold int init(AVFilterContext *ctx) { - PadContext *pad = ctx->priv; + PadContext *s = ctx->priv; - if (av_parse_color(pad->rgba_color, pad->color_str, -1, ctx) < 0) + if (av_parse_color(s->rgba_color, s->color_str, -1, ctx) < 0) return AVERROR(EINVAL); return 0; @@ -107,13 +107,13 @@ static av_cold int init(AVFilterContext *ctx) static int config_input(AVFilterLink *inlink) { AVFilterContext *ctx = inlink->dst; - PadContext *pad = ctx->priv; + PadContext *s = ctx->priv; int ret; double var_values[VARS_NB], res; char *expr; - ff_draw_init(&pad->draw, inlink->format, 0); - ff_draw_color(&pad->draw, &pad->color, pad->rgba_color); + ff_draw_init(&s->draw, inlink->format, 0); + ff_draw_color(&s->draw, &s->color, s->rgba_color); var_values[VAR_IN_W] = var_values[VAR_IW] = inlink->w; var_values[VAR_IN_H] = var_values[VAR_IH] = inlink->h; @@ -123,72 +123,72 @@ static int config_input(AVFilterLink *inlink) var_values[VAR_SAR] = inlink->sample_aspect_ratio.num ? (double) 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; + var_values[VAR_HSUB] = 1 << s->draw.hsub_max; + var_values[VAR_VSUB] = 1 << s->draw.vsub_max; /* evaluate width and height */ - av_expr_parse_and_eval(&res, (expr = pad->w_expr), + av_expr_parse_and_eval(&res, (expr = s->w_expr), var_names, var_values, NULL, NULL, NULL, NULL, NULL, 0, ctx); - pad->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; - if ((ret = av_expr_parse_and_eval(&res, (expr = pad->h_expr), + s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; + if ((ret = av_expr_parse_and_eval(&res, (expr = s->h_expr), var_names, var_values, NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) goto eval_fail; - pad->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res; + s->h = var_values[VAR_OUT_H] = var_values[VAR_OH] = res; /* evaluate the width again, as it may depend on the evaluated output height */ - if ((ret = av_expr_parse_and_eval(&res, (expr = pad->w_expr), + if ((ret = av_expr_parse_and_eval(&res, (expr = s->w_expr), var_names, var_values, NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) goto eval_fail; - pad->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; + s->w = var_values[VAR_OUT_W] = var_values[VAR_OW] = res; /* evaluate x and y */ - av_expr_parse_and_eval(&res, (expr = pad->x_expr), + av_expr_parse_and_eval(&res, (expr = s->x_expr), var_names, var_values, NULL, NULL, NULL, NULL, NULL, 0, ctx); - pad->x = var_values[VAR_X] = res; - if ((ret = av_expr_parse_and_eval(&res, (expr = pad->y_expr), + s->x = var_values[VAR_X] = res; + if ((ret = av_expr_parse_and_eval(&res, (expr = s->y_expr), var_names, var_values, NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) goto eval_fail; - pad->y = var_values[VAR_Y] = res; + s->y = var_values[VAR_Y] = res; /* evaluate x again, as it may depend on the evaluated y value */ - if ((ret = av_expr_parse_and_eval(&res, (expr = pad->x_expr), + if ((ret = av_expr_parse_and_eval(&res, (expr = s->x_expr), var_names, var_values, NULL, NULL, NULL, NULL, NULL, 0, ctx)) < 0) goto eval_fail; - pad->x = var_values[VAR_X] = res; + s->x = var_values[VAR_X] = res; /* sanity check params */ - if (pad->w < 0 || pad->h < 0 || pad->x < 0 || pad->y < 0) { + if (s->w < 0 || s->h < 0 || s->x < 0 || s->y < 0) { av_log(ctx, AV_LOG_ERROR, "Negative values are not acceptable.\n"); return AVERROR(EINVAL); } - if (!pad->w) - pad->w = inlink->w; - if (!pad->h) - pad->h = inlink->h; + if (!s->w) + s->w = inlink->w; + if (!s->h) + s->h = inlink->h; - 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); + s->w = ff_draw_round_to_sub(&s->draw, 0, -1, s->w); + s->h = ff_draw_round_to_sub(&s->draw, 1, -1, s->h); + s->x = ff_draw_round_to_sub(&s->draw, 0, -1, s->x); + s->y = ff_draw_round_to_sub(&s->draw, 1, -1, s->y); + s->in_w = ff_draw_round_to_sub(&s->draw, 0, -1, inlink->w); + s->in_h = ff_draw_round_to_sub(&s->draw, 1, -1, inlink->h); 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->rgba_color[0], pad->rgba_color[1], pad->rgba_color[2], pad->rgba_color[3]); + inlink->w, inlink->h, s->w, s->h, s->x, s->y, + s->rgba_color[0], s->rgba_color[1], s->rgba_color[2], s->rgba_color[3]); - 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) { + if (s->x < 0 || s->y < 0 || + s->w <= 0 || s->h <= 0 || + (unsigned)s->x + (unsigned)inlink->w > s->w || + (unsigned)s->y + (unsigned)inlink->h > s->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); + s->x, s->y, s->x + inlink->w, s->y + inlink->h, s->w, s->h); return AVERROR(EINVAL); } @@ -203,20 +203,20 @@ eval_fail: static int config_output(AVFilterLink *outlink) { - PadContext *pad = outlink->src->priv; + PadContext *s = outlink->src->priv; - outlink->w = pad->w; - outlink->h = pad->h; + outlink->w = s->w; + outlink->h = s->h; return 0; } static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h) { - PadContext *pad = inlink->dst->priv; + PadContext *s = inlink->dst->priv; AVFrame *frame = ff_get_video_buffer(inlink->dst->outputs[0], - w + (pad->w - pad->in_w), - h + (pad->h - pad->in_h)); + w + (s->w - s->in_w), + h + (s->h - s->in_h)); int plane; if (!frame) @@ -226,10 +226,10 @@ static AVFrame *get_video_buffer(AVFilterLink *inlink, int w, int h) frame->height = h; for (plane = 0; plane < 4 && frame->data[plane]; plane++) { - int hsub = pad->draw.hsub[plane]; - int vsub = pad->draw.vsub[plane]; - frame->data[plane] += (pad->x >> hsub) * pad->draw.pixelstep[plane] + - (pad->y >> vsub) * frame->linesize[plane]; + int hsub = s->draw.hsub[plane]; + int vsub = s->draw.vsub[plane]; + frame->data[plane] += (s->x >> hsub) * s->draw.pixelstep[plane] + + (s->y >> vsub) * frame->linesize[plane]; } return frame; @@ -304,15 +304,15 @@ static int frame_needs_copy(PadContext *s, AVFrame *frame) static int filter_frame(AVFilterLink *inlink, AVFrame *in) { - PadContext *pad = inlink->dst->priv; + PadContext *s = inlink->dst->priv; AVFrame *out; - int needs_copy = frame_needs_copy(pad, in); + int needs_copy = frame_needs_copy(s, in); if (needs_copy) { av_log(inlink->dst, AV_LOG_DEBUG, "Direct padding impossible allocating new frame\n"); out = ff_get_video_buffer(inlink->dst->outputs[0], - FFMAX(inlink->w, pad->w), - FFMAX(inlink->h, pad->h)); + FFMAX(inlink->w, s->w), + FFMAX(inlink->h, s->h)); if (!out) { av_frame_free(&in); return AVERROR(ENOMEM); @@ -324,44 +324,44 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) out = in; for (i = 0; i < 4 && out->data[i]; i++) { - int hsub = pad->draw.hsub[i]; - int vsub = pad->draw.vsub[i]; - out->data[i] -= (pad->x >> hsub) * pad->draw.pixelstep[i] + - (pad->y >> vsub) * out->linesize[i]; + int hsub = s->draw.hsub[i]; + int vsub = s->draw.vsub[i]; + out->data[i] -= (s->x >> hsub) * s->draw.pixelstep[i] + + (s->y >> vsub) * out->linesize[i]; } } /* top bar */ - if (pad->y) { - ff_fill_rectangle(&pad->draw, &pad->color, + if (s->y) { + ff_fill_rectangle(&s->draw, &s->color, out->data, out->linesize, - 0, 0, pad->w, pad->y); + 0, 0, s->w, s->y); } /* bottom bar */ - if (pad->h > pad->y + pad->in_h) { - ff_fill_rectangle(&pad->draw, &pad->color, + if (s->h > s->y + s->in_h) { + ff_fill_rectangle(&s->draw, &s->color, out->data, out->linesize, - 0, pad->y + pad->in_h, pad->w, pad->h - pad->y - pad->in_h); + 0, s->y + s->in_h, s->w, s->h - s->y - s->in_h); } /* left border */ - ff_fill_rectangle(&pad->draw, &pad->color, out->data, out->linesize, - 0, pad->y, pad->x, in->height); + ff_fill_rectangle(&s->draw, &s->color, out->data, out->linesize, + 0, s->y, s->x, in->height); if (needs_copy) { - ff_copy_rectangle2(&pad->draw, + ff_copy_rectangle2(&s->draw, out->data, out->linesize, in->data, in->linesize, - pad->x, pad->y, 0, 0, in->width, in->height); + s->x, s->y, 0, 0, in->width, in->height); } /* right border */ - ff_fill_rectangle(&pad->draw, &pad->color, out->data, out->linesize, - pad->x + pad->in_w, pad->y, pad->w - pad->x - pad->in_w, + ff_fill_rectangle(&s->draw, &s->color, out->data, out->linesize, + s->x + s->in_w, s->y, s->w - s->x - s->in_w, in->height); - out->width = pad->w; - out->height = pad->h; + out->width = s->w; + out->height = s->h; if (in != out) av_frame_free(&in); |