static void draw_char(AVCodecContext *avctx, int c, int a) { XbinContext *s = avctx->priv_data; if (s->y > avctx->height - s->font_height) return; ff_draw_pc_font(s->frame.data[0] + s->y * s->frame.linesize[0] + s->x, s->frame.linesize[0], s->font, s->font_height, c, a & 0x0F, a >> 4); s->x += FONT_WIDTH; if (s->x >= avctx->width) { s->x = 0; s->y += s->font_height; } }