1 files changed, 309 insertions, 0 deletions

diff --git a/video/filter/vf_sub.c b/video/filter/vf_sub.c
new file mode 100644
index 0000000000..2d5de3a7ba
--- /dev/null
+++ b/video/filter/vf_sub.c
@@ -0,0 +1,309 @@
+/*
+ * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
+ *
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <assert.h>
+#include <libavutil/common.h>
+
+#include "config.h"
+#include "mp_msg.h"
+#include "options.h"
+
+#include "img_format.h"
+#include "mp_image.h"
+#include "vf.h"
+#include "sub/sub.h"
+#include "sub/dec_sub.h"
+
+#include "libvo/fastmemcpy.h"
+#include "libvo/csputils.h"
+
+#include "m_option.h"
+#include "m_struct.h"
+
+static const struct vf_priv_s {
+    int outh, outw;
+
+    unsigned int outfmt;
+    struct mp_csp_details csp;
+
+    struct osd_state *osd;
+    struct mp_osd_res dim;
+} vf_priv_dflt = {
+    .csp = MP_CSP_DETAILS_DEFAULTS,
+};
+
+static int config(struct vf_instance *vf,
+                  int width, int height, int d_width, int d_height,
+                  unsigned int flags, unsigned int outfmt)
+{
+    struct MPOpts *opts = vf->opts;
+    if (outfmt == IMGFMT_IF09)
+        return 0;
+
+    vf->priv->outh = height + opts->ass_top_margin + opts->ass_bottom_margin;
+    vf->priv->outw = width;
+
+    if (!opts->screen_size_x && !opts->screen_size_y) {
+        d_width = d_width * vf->priv->outw / width;
+        d_height = d_height * vf->priv->outh / height;
+    }
+
+    double dar = (double)d_width / d_height;
+    double sar = (double)width / height;
+
+    vf->priv->dim = (struct mp_osd_res) {
+        .w = vf->priv->outw,
+        .h = vf->priv->outh,
+        .mt = opts->ass_top_margin,
+        .mb = opts->ass_bottom_margin,
+        .display_par = sar / dar,
+        .video_par = dar / sar,
+    };
+
+    return vf_next_config(vf, vf->priv->outw, vf->priv->outh, d_width,
+			  d_height, flags, outfmt);
+}
+
+static void get_image(struct vf_instance *vf, mp_image_t *mpi)
+{
+    if (mpi->type == MP_IMGTYPE_IPB)
+        return;
+    if (mpi->flags & MP_IMGFLAG_PRESERVE)
+        return;
+    if (mpi->imgfmt != vf->priv->outfmt)
+        return;                                     // colorspace differ
+
+    // width never changes, always try full DR
+    mpi->priv = vf->dmpi = vf_get_image(vf->next, mpi->imgfmt, mpi->type,
+                                        mpi->flags | MP_IMGFLAG_READABLE,
+                                        FFMAX(mpi->width,  vf->priv->outw),
+                                        FFMAX(mpi->height, vf->priv->outh));
+
+    if ((vf->dmpi->flags & MP_IMGFLAG_DRAW_CALLBACK) &&
+        !(vf->dmpi->flags & MP_IMGFLAG_DIRECT)) {
+        mp_tmsg(MSGT_ASS, MSGL_INFO, "Full DR not possible, trying SLICES instead!\n");
+        return;
+    }
+
+    int tmargin = vf->opts->ass_top_margin;
+    // set up mpi as a cropped-down image of dmpi:
+    if (mpi->flags & MP_IMGFLAG_PLANAR) {
+        mpi->planes[0] = vf->dmpi->planes[0] +  tmargin * vf->dmpi->stride[0];
+        mpi->planes[1] = vf->dmpi->planes[1] + (tmargin >> mpi->chroma_y_shift) * vf->dmpi->stride[1];
+        mpi->planes[2] = vf->dmpi->planes[2] + (tmargin >> mpi->chroma_y_shift) * vf->dmpi->stride[2];
+        mpi->stride[1] = vf->dmpi->stride[1];
+        mpi->stride[2] = vf->dmpi->stride[2];
+    } else {
+        mpi->planes[0] = vf->dmpi->planes[0] + tmargin * vf->dmpi->stride[0];
+    }
+    mpi->stride[0] = vf->dmpi->stride[0];
+    mpi->width = vf->dmpi->width;
+    mpi->flags |= MP_IMGFLAG_DIRECT;
+    mpi->flags &= ~MP_IMGFLAG_DRAW_CALLBACK;
+//	vf->dmpi->flags&=~MP_IMGFLAG_DRAW_CALLBACK;
+}
+
+static void blank(mp_image_t *mpi, int y1, int y2)
+{
+    int color[3] = {16, 128, 128};    // black (YUV)
+    int y;
+    unsigned char *dst;
+    int chroma_rows = (y2 - y1) >> mpi->chroma_y_shift;
+
+    dst = mpi->planes[0] + y1 * mpi->stride[0];
+    for (y = 0; y < y2 - y1; ++y) {
+        memset(dst, color[0], mpi->w);
+        dst += mpi->stride[0];
+    }
+    dst = mpi->planes[1] + (y1 >> mpi->chroma_y_shift) * mpi->stride[1];
+    for (y = 0; y < chroma_rows; ++y) {
+        memset(dst, color[1], mpi->chroma_width);
+        dst += mpi->stride[1];
+    }
+    dst = mpi->planes[2] + (y1 >> mpi->chroma_y_shift) * mpi->stride[2];
+    for (y = 0; y < chroma_rows; ++y) {
+        memset(dst, color[2], mpi->chroma_width);
+        dst += mpi->stride[2];
+    }
+}
+
+static int prepare_image(struct vf_instance *vf, mp_image_t *mpi)
+{
+    struct MPOpts *opts = vf->opts;
+    int tmargin = opts->ass_top_margin;
+    if (mpi->flags & MP_IMGFLAG_DIRECT
+	|| mpi->flags & MP_IMGFLAG_DRAW_CALLBACK) {
+        vf->dmpi = mpi->priv;
+        if (!vf->dmpi) {
+            mp_tmsg(MSGT_ASS, MSGL_WARN, "Why do we get NULL??\n");
+	    return 0;
+        }
+        mpi->priv = NULL;
+        // we've used DR, so we're ready...
+        if (tmargin)
+            blank(vf->dmpi, 0, tmargin);
+        if (opts->ass_bottom_margin)
+            blank(vf->dmpi, vf->priv->outh - opts->ass_bottom_margin,
+                  vf->priv->outh);
+        if (!(mpi->flags & MP_IMGFLAG_PLANAR))
+            vf->dmpi->planes[1] = mpi->planes[1];             // passthrough rgb8 palette
+        return 0;
+    }
+
+    // hope we'll get DR buffer:
+    vf->dmpi = vf_get_image(vf->next, vf->priv->outfmt, MP_IMGTYPE_TEMP,
+			    MP_IMGFLAG_ACCEPT_STRIDE | MP_IMGFLAG_READABLE,
+                            vf->priv->outw, vf->priv->outh);
+
+    // copy mpi->dmpi...
+    if (mpi->flags & MP_IMGFLAG_PLANAR) {
+        memcpy_pic(vf->dmpi->planes[0] + tmargin * vf->dmpi->stride[0],
+                   mpi->planes[0],
+		   mpi->w,
+		   mpi->h,
+                   vf->dmpi->stride[0],
+		   mpi->stride[0]);
+        memcpy_pic(vf->dmpi->planes[1] + (tmargin >> mpi->chroma_y_shift) * vf->dmpi->stride[1],
+                   mpi->planes[1],
+		   mpi->w >> mpi->chroma_x_shift,
+		   mpi->h >> mpi->chroma_y_shift,
+                   vf->dmpi->stride[1],
+		   mpi->stride[1]);
+        memcpy_pic(vf->dmpi->planes[2] + (tmargin >> mpi->chroma_y_shift) * vf->dmpi->stride[2],
+                   mpi->planes[2],
+		   mpi->w >> mpi->chroma_x_shift,
+		   mpi->h >> mpi->chroma_y_shift,
+                   vf->dmpi->stride[2],
+		   mpi->stride[2]);
+    } else {
+        memcpy_pic(vf->dmpi->planes[0] + tmargin * vf->dmpi->stride[0],
+                   mpi->planes[0],
+		   mpi->w * (vf->dmpi->bpp / 8),
+		   mpi->h,
+                   vf->dmpi->stride[0],
+		   mpi->stride[0]);
+        vf->dmpi->planes[1] = mpi->planes[1];   // passthrough rgb8 palette
+    }
+    if (tmargin)
+        blank(vf->dmpi, 0, tmargin);
+    if (opts->ass_bottom_margin)
+        blank(vf->dmpi, vf->priv->outh - opts->ass_bottom_margin,
+              vf->priv->outh);
+    return 0;
+}
+
+static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
+{
+    struct vf_priv_s *priv = vf->priv;
+    struct osd_state *osd = priv->osd;
+
+    prepare_image(vf, mpi);
+    mp_image_set_colorspace_details(mpi, &priv->csp);
+
+    if (pts != MP_NOPTS_VALUE)
+        osd_draw_on_image(osd, priv->dim, pts, OSD_DRAW_SUB_FILTER, vf->dmpi);
+
+    return vf_next_put_image(vf, vf->dmpi, pts);
+}
+
+static int query_format(struct vf_instance *vf, unsigned int fmt)
+{
+    switch (fmt) {
+    case IMGFMT_YV12:
+    case IMGFMT_I420:
+    case IMGFMT_IYUV:
+        return vf_next_query_format(vf, vf->priv->outfmt);
+    }
+    return 0;
+}
+
+static int control(vf_instance_t *vf, int request, void *data)
+{
+    switch (request) {
+    case VFCTRL_SET_OSD_OBJ:
+        vf->priv->osd = data;
+        break;
+    case VFCTRL_INIT_OSD:
+        return CONTROL_TRUE;
+    case VFCTRL_SET_YUV_COLORSPACE: {
+        struct mp_csp_details colorspace = *(struct mp_csp_details *)data;
+        vf->priv->csp = colorspace;
+        break;
+    }
+    }
+    return vf_next_control(vf, request, data);
+}
+
+static void uninit(struct vf_instance *vf)
+{
+    free(vf->priv);
+}
+
+static const unsigned int fmt_list[] = {
+    IMGFMT_YV12,
+    IMGFMT_I420,
+    IMGFMT_IYUV,
+    0
+};
+
+static int vf_open(vf_instance_t *vf, char *args)
+{
+    vf->priv->outfmt = vf_match_csp(&vf->next, fmt_list, IMGFMT_YV12);
+    if (!vf->priv->outfmt) {
+        uninit(vf);
+        return 0;
+    }
+
+    vf->config = config;
+    vf->query_format = query_format;
+    vf->uninit    = uninit;
+    vf->control   = control;
+    vf->get_image = get_image;
+    vf->put_image = put_image;
+    vf->default_caps = VFCAP_OSD;
+    return 1;
+}
+
+#define ST_OFF(f) M_ST_OFF(struct vf_priv_s, f)
+static const m_option_t vf_opts_fields[] = {
+    {NULL, NULL, 0, 0, 0, 0, NULL}
+};
+
+static const m_struct_t vf_opts = {
+    "sub",
+    sizeof(struct vf_priv_s),
+    &vf_priv_dflt,
+    vf_opts_fields
+};
+
+const vf_info_t vf_info_sub = {
+    "Render subtitles",
+    "sub",
+    "Evgeniy Stepanov",
+    "",
+    vf_open,
+    &vf_opts
+};