mirror of https://github.com/mpv-player/mpv
479 lines
15 KiB
C
479 lines
15 KiB
C
/*
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* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
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*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include <assert.h>
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#include <libavutil/common.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "options.h"
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#include "img_format.h"
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#include "mp_image.h"
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#include "vf.h"
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#include "sub/sub.h"
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#include "libvo/fastmemcpy.h"
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#include "m_option.h"
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#include "m_struct.h"
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#include "sub/ass_mp.h"
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#define _r(c) ((c)>>24)
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#define _g(c) (((c)>>16)&0xFF)
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#define _b(c) (((c)>>8)&0xFF)
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#define _a(c) ((c)&0xFF)
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#define rgba2y(c) ( (( 263*_r(c) + 516*_g(c) + 100*_b(c)) >> 10) + 16 )
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#define rgba2u(c) ( ((-152*_r(c) - 298*_g(c) + 450*_b(c)) >> 10) + 128 )
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#define rgba2v(c) ( (( 450*_r(c) - 376*_g(c) - 73*_b(c)) >> 10) + 128 )
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static const struct vf_priv_s {
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int outh, outw;
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unsigned int outfmt;
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// 1 = auto-added filter: insert only if chain does not support EOSD already
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// 0 = insert always
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int auto_insert;
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struct osd_state *osd;
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ASS_Renderer *renderer;
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double realaspect;
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unsigned char *planes[3];
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struct line_limits {
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uint16_t start;
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uint16_t end;
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} *line_limits;
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} vf_priv_dflt;
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static int config(struct vf_instance *vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt)
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{
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struct MPOpts *opts = vf->opts;
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if (outfmt == IMGFMT_IF09)
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return 0;
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vf->priv->outh = height + opts->ass_top_margin + opts->ass_bottom_margin;
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vf->priv->outw = width;
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if (!opts->screen_size_x && !opts->screen_size_y) {
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d_width = d_width * vf->priv->outw / width;
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d_height = d_height * vf->priv->outh / height;
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}
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vf->priv->planes[1] = malloc(vf->priv->outw * vf->priv->outh);
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vf->priv->planes[2] = malloc(vf->priv->outw * vf->priv->outh);
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vf->priv->line_limits = malloc((vf->priv->outh + 1) / 2 * sizeof(*vf->priv->line_limits));
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if (vf->priv->renderer) {
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mp_ass_configure(vf->priv->renderer, opts,
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vf->priv->outw, vf->priv->outh, 0);
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vf->priv->realaspect = (double)width / height * d_height / d_width;
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}
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return vf_next_config(vf, vf->priv->outw, vf->priv->outh, d_width,
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d_height, flags, outfmt);
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}
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static void get_image(struct vf_instance *vf, mp_image_t *mpi)
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{
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if (mpi->type == MP_IMGTYPE_IPB)
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return;
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if (mpi->flags & MP_IMGFLAG_PRESERVE)
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return;
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if (mpi->imgfmt != vf->priv->outfmt)
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return; // colorspace differ
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// width never changes, always try full DR
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mpi->priv = vf->dmpi = vf_get_image(vf->next, mpi->imgfmt, mpi->type,
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mpi->flags | MP_IMGFLAG_READABLE,
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FFMAX(mpi->width, vf->priv->outw),
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FFMAX(mpi->height, vf->priv->outh));
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if ((vf->dmpi->flags & MP_IMGFLAG_DRAW_CALLBACK) &&
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!(vf->dmpi->flags & MP_IMGFLAG_DIRECT)) {
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mp_tmsg(MSGT_ASS, MSGL_INFO, "Full DR not possible, trying SLICES instead!\n");
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return;
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}
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int tmargin = vf->opts->ass_top_margin;
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// set up mpi as a cropped-down image of dmpi:
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if (mpi->flags & MP_IMGFLAG_PLANAR) {
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mpi->planes[0] = vf->dmpi->planes[0] + tmargin * vf->dmpi->stride[0];
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mpi->planes[1] = vf->dmpi->planes[1] + (tmargin >> mpi->chroma_y_shift) * vf->dmpi->stride[1];
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mpi->planes[2] = vf->dmpi->planes[2] + (tmargin >> mpi->chroma_y_shift) * vf->dmpi->stride[2];
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mpi->stride[1] = vf->dmpi->stride[1];
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mpi->stride[2] = vf->dmpi->stride[2];
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} else {
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mpi->planes[0] = vf->dmpi->planes[0] + tmargin * vf->dmpi->stride[0];
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}
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mpi->stride[0] = vf->dmpi->stride[0];
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mpi->width = vf->dmpi->width;
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mpi->flags |= MP_IMGFLAG_DIRECT;
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mpi->flags &= ~MP_IMGFLAG_DRAW_CALLBACK;
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// vf->dmpi->flags&=~MP_IMGFLAG_DRAW_CALLBACK;
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}
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static void blank(mp_image_t *mpi, int y1, int y2)
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{
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int color[3] = {16, 128, 128}; // black (YUV)
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int y;
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unsigned char *dst;
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int chroma_rows = (y2 - y1) >> mpi->chroma_y_shift;
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dst = mpi->planes[0] + y1 * mpi->stride[0];
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for (y = 0; y < y2 - y1; ++y) {
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memset(dst, color[0], mpi->w);
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dst += mpi->stride[0];
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}
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dst = mpi->planes[1] + (y1 >> mpi->chroma_y_shift) * mpi->stride[1];
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for (y = 0; y < chroma_rows; ++y) {
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memset(dst, color[1], mpi->chroma_width);
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dst += mpi->stride[1];
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}
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dst = mpi->planes[2] + (y1 >> mpi->chroma_y_shift) * mpi->stride[2];
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for (y = 0; y < chroma_rows; ++y) {
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memset(dst, color[2], mpi->chroma_width);
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dst += mpi->stride[2];
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}
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}
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static int prepare_image(struct vf_instance *vf, mp_image_t *mpi)
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{
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struct MPOpts *opts = vf->opts;
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int tmargin = opts->ass_top_margin;
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if (mpi->flags & MP_IMGFLAG_DIRECT
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|| mpi->flags & MP_IMGFLAG_DRAW_CALLBACK) {
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vf->dmpi = mpi->priv;
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if (!vf->dmpi) {
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mp_tmsg(MSGT_ASS, MSGL_WARN, "Why do we get NULL??\n");
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return 0;
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}
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mpi->priv = NULL;
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// we've used DR, so we're ready...
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if (tmargin)
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blank(vf->dmpi, 0, tmargin);
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if (opts->ass_bottom_margin)
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blank(vf->dmpi, vf->priv->outh - opts->ass_bottom_margin,
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vf->priv->outh);
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if (!(mpi->flags & MP_IMGFLAG_PLANAR))
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vf->dmpi->planes[1] = mpi->planes[1]; // passthrough rgb8 palette
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return 0;
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}
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// hope we'll get DR buffer:
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vf->dmpi = vf_get_image(vf->next, vf->priv->outfmt, MP_IMGTYPE_TEMP,
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MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_READABLE,
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vf->priv->outw, vf->priv->outh);
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// copy mpi->dmpi...
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if (mpi->flags & MP_IMGFLAG_PLANAR) {
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memcpy_pic(vf->dmpi->planes[0] + tmargin * vf->dmpi->stride[0],
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mpi->planes[0],
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mpi->w,
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mpi->h,
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vf->dmpi->stride[0],
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mpi->stride[0]);
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memcpy_pic(vf->dmpi->planes[1] + (tmargin >> mpi->chroma_y_shift) * vf->dmpi->stride[1],
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mpi->planes[1],
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mpi->w >> mpi->chroma_x_shift,
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mpi->h >> mpi->chroma_y_shift,
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vf->dmpi->stride[1],
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mpi->stride[1]);
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memcpy_pic(vf->dmpi->planes[2] + (tmargin >> mpi->chroma_y_shift) * vf->dmpi->stride[2],
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mpi->planes[2],
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mpi->w >> mpi->chroma_x_shift,
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mpi->h >> mpi->chroma_y_shift,
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vf->dmpi->stride[2],
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mpi->stride[2]);
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} else {
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memcpy_pic(vf->dmpi->planes[0] + tmargin * vf->dmpi->stride[0],
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mpi->planes[0],
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mpi->w * (vf->dmpi->bpp / 8),
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mpi->h,
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vf->dmpi->stride[0],
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mpi->stride[0]);
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vf->dmpi->planes[1] = mpi->planes[1]; // passthrough rgb8 palette
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}
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if (tmargin)
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blank(vf->dmpi, 0, tmargin);
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if (opts->ass_bottom_margin)
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blank(vf->dmpi, vf->priv->outh - opts->ass_bottom_margin,
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vf->priv->outh);
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return 0;
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}
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static void update_limits(struct vf_instance *vf, int starty, int endy,
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int startx, int endx)
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{
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starty >>= 1;
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endy = (endy + 1) >> 1;
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startx >>= 1;
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endx = (endx + 1) >> 1;
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for (int i = starty; i < endy; i++) {
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struct line_limits *ll = vf->priv->line_limits + i;
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if (startx < ll->start)
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ll->start = startx;
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if (endx > ll->end)
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ll->end = endx;
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}
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}
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/**
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* \brief Copy specified rows from render_context.dmpi to render_context.planes, upsampling to 4:4:4
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*/
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static void copy_from_image(struct vf_instance *vf)
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{
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int pl;
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for (pl = 1; pl < 3; ++pl) {
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int dst_stride = vf->priv->outw;
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int src_stride = vf->dmpi->stride[pl];
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unsigned char *src = vf->dmpi->planes[pl];
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unsigned char *dst = vf->priv->planes[pl];
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for (int i = 0; i < (vf->priv->outh + 1) / 2; i++) {
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struct line_limits *ll = vf->priv->line_limits + i;
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unsigned char *dst_next = dst + dst_stride;
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for (int j = ll->start; j < ll->end; j++) {
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unsigned char val = src[j];
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dst[j << 1] = val;
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dst[(j << 1) + 1] = val;
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dst_next[j << 1] = val;
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dst_next[(j << 1) + 1] = val;
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}
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src += src_stride;
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dst = dst_next + dst_stride;
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}
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}
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}
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/**
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* \brief Copy all previously copied rows back to render_context.dmpi
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*/
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static void copy_to_image(struct vf_instance *vf)
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{
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int pl;
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int i, j;
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for (pl = 1; pl < 3; ++pl) {
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int dst_stride = vf->dmpi->stride[pl];
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int src_stride = vf->priv->outw;
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unsigned char *dst = vf->dmpi->planes[pl];
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unsigned char *src = vf->priv->planes[pl];
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unsigned char *src_next = vf->priv->planes[pl] + src_stride;
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for (i = 0; i < vf->priv->outh / 2; ++i) {
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for (j = vf->priv->line_limits[i].start; j < vf->priv->line_limits[i].end; j++) {
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unsigned val = 0;
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val += src[j << 1];
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val += src[(j << 1) + 1];
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val += src_next[j << 1];
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val += src_next[(j << 1) + 1];
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dst[j] = val >> 2;
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}
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dst += dst_stride;
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src = src_next + src_stride;
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src_next = src + src_stride;
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}
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}
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}
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static void my_draw_bitmap(struct vf_instance *vf, unsigned char *bitmap,
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int bitmap_w, int bitmap_h, int stride,
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int dst_x, int dst_y, unsigned color)
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{
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unsigned char y = rgba2y(color);
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unsigned char u = rgba2u(color);
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unsigned char v = rgba2v(color);
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unsigned char opacity = 255 - _a(color);
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unsigned char *src, *dsty, *dstu, *dstv;
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int i, j;
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mp_image_t *dmpi = vf->dmpi;
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src = bitmap;
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dsty = dmpi->planes[0] + dst_x + dst_y * dmpi->stride[0];
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dstu = vf->priv->planes[1] + dst_x + dst_y * vf->priv->outw;
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dstv = vf->priv->planes[2] + dst_x + dst_y * vf->priv->outw;
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for (i = 0; i < bitmap_h; ++i) {
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for (j = 0; j < bitmap_w; ++j) {
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unsigned k = (src[j] * opacity + 255) >> 8;
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dsty[j] = (k * y + (255 - k) * dsty[j] + 255) >> 8;
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dstu[j] = (k * u + (255 - k) * dstu[j] + 255) >> 8;
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dstv[j] = (k * v + (255 - k) * dstv[j] + 255) >> 8;
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}
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src += stride;
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dsty += dmpi->stride[0];
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dstu += vf->priv->outw;
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dstv += vf->priv->outw;
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}
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}
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static int render_frame(struct vf_instance *vf, mp_image_t *mpi,
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const ASS_Image *img)
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{
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if (img) {
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for (int i = 0; i < (vf->priv->outh + 1) / 2; i++)
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vf->priv->line_limits[i] = (struct line_limits){65535, 0};
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for (const ASS_Image *im = img; im; im = im->next)
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update_limits(vf, im->dst_y, im->dst_y + im->h,
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im->dst_x, im->dst_x + im->w);
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copy_from_image(vf);
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while (img) {
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my_draw_bitmap(vf, img->bitmap, img->w, img->h, img->stride,
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img->dst_x, img->dst_y, img->color);
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img = img->next;
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}
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copy_to_image(vf);
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}
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return 0;
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}
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static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
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{
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struct osd_state *osd = vf->priv->osd;
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ASS_Image *images = 0;
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double scale = osd->vsfilter_aspect
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&& vf->opts->ass_vsfilter_aspect_compat
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? 1 : vf->priv->realaspect;
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if (sub_visibility && vf->priv->renderer && osd->ass_track
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&& (pts != MP_NOPTS_VALUE)) {
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ass_set_aspect_ratio(vf->priv->renderer, scale, 1);
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if (osd->ass_force_reload)
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mp_ass_reload_options(vf->priv->renderer, vf->opts);
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osd->ass_force_reload = false;
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images = ass_render_frame(vf->priv->renderer, osd->ass_track,
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(pts - osd->sub_offset + sub_delay) * 1000 + .5, NULL);
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}
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prepare_image(vf, mpi);
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if (images)
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render_frame(vf, mpi, images);
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return vf_next_put_image(vf, vf->dmpi, pts);
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}
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static int query_format(struct vf_instance *vf, unsigned int fmt)
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{
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switch (fmt) {
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case IMGFMT_YV12:
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case IMGFMT_I420:
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case IMGFMT_IYUV:
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return vf_next_query_format(vf, vf->priv->outfmt);
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}
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return 0;
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}
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static int control(vf_instance_t *vf, int request, void *data)
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{
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switch (request) {
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case VFCTRL_SET_OSD_OBJ:
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vf->priv->osd = data;
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break;
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case VFCTRL_INIT_EOSD:
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vf->priv->renderer = ass_renderer_init((ASS_Library *)data);
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if (!vf->priv->renderer)
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return CONTROL_FALSE;
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mp_ass_configure_fonts(vf->priv->renderer);
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return CONTROL_TRUE;
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case VFCTRL_DRAW_EOSD:
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if (vf->priv->renderer)
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return CONTROL_TRUE;
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break;
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}
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return vf_next_control(vf, request, data);
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}
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static void uninit(struct vf_instance *vf)
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{
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if (vf->priv->renderer)
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ass_renderer_done(vf->priv->renderer);
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free(vf->priv->planes[1]);
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free(vf->priv->planes[2]);
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free(vf->priv->line_limits);
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free(vf->priv);
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}
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static const unsigned int fmt_list[] = {
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IMGFMT_YV12,
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IMGFMT_I420,
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IMGFMT_IYUV,
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0
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};
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static int vf_open(vf_instance_t *vf, char *args)
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{
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int flags;
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vf->priv->outfmt = vf_match_csp(&vf->next, fmt_list, IMGFMT_YV12);
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if (vf->priv->outfmt)
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flags = vf_next_query_format(vf, vf->priv->outfmt);
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if (!vf->priv->outfmt) {
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uninit(vf);
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return 0;
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} else if (vf->priv->auto_insert && flags & VFCAP_EOSD) {
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uninit(vf);
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return -1;
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}
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if (vf->priv->auto_insert)
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mp_msg(MSGT_ASS, MSGL_INFO, "[ass] auto-open\n");
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vf->config = config;
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vf->query_format = query_format;
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vf->uninit = uninit;
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vf->control = control;
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vf->get_image = get_image;
|
|
vf->put_image = put_image;
|
|
vf->default_caps = VFCAP_EOSD | VFCAP_EOSD_FILTER;
|
|
return 1;
|
|
}
|
|
|
|
#define ST_OFF(f) M_ST_OFF(struct vf_priv_s, f)
|
|
static const m_option_t vf_opts_fields[] = {
|
|
{"auto", ST_OFF(auto_insert), CONF_TYPE_FLAG, 0, 0, 1, NULL},
|
|
{NULL, NULL, 0, 0, 0, 0, NULL}
|
|
};
|
|
|
|
static const m_struct_t vf_opts = {
|
|
"ass",
|
|
sizeof(struct vf_priv_s),
|
|
&vf_priv_dflt,
|
|
vf_opts_fields
|
|
};
|
|
|
|
const vf_info_t vf_info_ass = {
|
|
"Render ASS/SSA subtitles",
|
|
"ass",
|
|
"Evgeniy Stepanov",
|
|
"",
|
|
vf_open,
|
|
&vf_opts
|
|
};
|