vf_dlopen: remove this filter

It was an attempt to move some MPlayer filters (which were removed from
mpv) to external, loadable filters. That worked well, but then the
MPlayer filters were ported to libavfilter (independently), so they're
available again. Also there is a more widely supported and more advanced
loadable filter system supported by mpv: vapoursynth.

In conclusion, vf_dlopen is not useful anymore, confusing, and requires
quite a bit of code (and probably wouldn't survive the rewrite of the
mpv video filter chain, which has to come at some point). It has some
implicit dependencies on internal conventions, like possibly the format
names dropped in the previous commit.

We also deprecated it last release. Drop it.

1 files changed, 0 insertions, 177 deletions

diff --git a/TOOLS/vf_dlopen/tile.c b/TOOLS/vf_dlopen/tile.c
deleted file mode 100644
index bf5aeea26f..0000000000
--- a/TOOLS/vf_dlopen/tile.c
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * Copyright (c) 2012 Rudolf Polzer <divVerent@xonotic.org>
- *
- * This file is part of mpv's vf_dlopen examples.
- *
- * mpv's vf_dlopen examples are free software; you can redistribute them and/or
- * modify them under the terms of the GNU Lesser General Public License as
- * published by the Free Software Foundation; either version 2.1 of the
- * License, or (at your option) any later version.
- *
- * mpv's vf_dlopen examples are distributed in the hope that they will be
- * useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
- * General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with mpv's vf_dlopen examples; if not, write to the Free
- * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301 USA
- */
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "vf_dlopen.h"
-#include "filterutils.h"
-
-/*
- * tile filter
- *
- * usage: --vf=dlopen=/path/to/tile.so:4:3
- *
- * only supports rgb24 and yuv420p for now
- * in theory can support any format where rows are a multiple of bytes, and the
- * multiple is known
- */
-
-#define ALLFORMATS \
-    /*     format    bytes   xmul   ymul */ \
-    FORMAT("rgb24"  ,    3,     1,     1) \
-    FORMAT("yuv420p",    1,     2,     2)
-
-typedef struct {
-    int rows, cols;
-    unsigned char *buffer_plane[4];
-    size_t buffer_size[4];
-    int pos;
-    int pixelbytes;
-} tile_data_t;
-
-static int tile_config(struct vf_dlopen_context *ctx)
-{
-    // we may return more than one pic!
-    tile_data_t *tile = ctx->priv;
-
-    ctx->out_width = tile->cols * ctx->in_width;
-    ctx->out_height = tile->rows * ctx->in_height;
-    ctx->out_d_width = tile->cols * ctx->in_d_width;
-    ctx->out_d_height = tile->rows * ctx->in_d_height;
-
-#define FORMAT(fmt,sz,xmul,ymul) \
-        if (!strcmp(ctx->in_fmt, fmt)) { \
-            if (ctx->in_width % xmul || ctx->in_height % ymul) { \
-                printf("Format " fmt " requires width to be a multiple of %d and height to be a multiple of %d\n", \
-                       xmul, ymul); \
-                return -1; \
-            } \
-            tile->pixelbytes = sz; \
-        } else
-    ALLFORMATS
-#undef FORMAT
-    {
-        printf("Format %s is not in the list, how come?\n", ctx->in_fmt);
-        return -1;
-    }
-
-    return 1;
-}
-
-static int tile_put_image(struct vf_dlopen_context *ctx)
-{
-    tile_data_t *tile = ctx->priv;
-
-    unsigned p;
-    unsigned np = ctx->outpic[0].planes;
-    assert(ctx->inpic.planes == ctx->outpic[0].planes);
-
-    // fix buffers
-    for (p = 0; p < np; ++p) {
-        size_t sz = ctx->outpic->planestride[p] * ctx->outpic->planeheight[p];
-        if (sz != tile->buffer_size[p]) {
-            if (p == 0 && tile->buffer_plane[p])
-                printf("WARNING: reinitializing output buffers.\n");
-            tile->buffer_plane[p] = realloc(tile->buffer_plane[p], sz);
-            tile->buffer_size[p] = sz;
-            tile->pos = 0;
-        }
-    }
-
-    for (p = 0; p < np; ++p) {
-        assert(ctx->inpic.planewidth[p] * tile->cols == ctx->outpic->planewidth[p]);
-        assert(ctx->inpic.planeheight[p] * tile->rows == ctx->outpic->planeheight[p]);
-    }
-
-    // copy this frame
-    for (p = 0; p < np; ++p)
-        copy_plane(
-            &tile->buffer_plane[p][ctx->outpic->planestride[p] * ctx->inpic.planeheight[p] * (tile->pos / tile->cols) + tile->pixelbytes * ctx->inpic.planewidth[p] * (tile->pos % tile->cols)],
-            ctx->outpic->planestride[p],
-            ctx->inpic.plane[p],
-            ctx->inpic.planestride[p],
-            tile->pixelbytes * ctx->inpic.planewidth[p],
-            ctx->inpic.planeheight[p]
-            );
-
-    ++tile->pos;
-    if (tile->pos == tile->rows * tile->cols) {
-        // copy THIS image to the buffer, we need it later
-        for (p = 0; p < np; ++p)
-            copy_plane(
-                ctx->outpic->plane[p], ctx->outpic->planestride[p],
-                &tile->buffer_plane[p][0], ctx->outpic->planestride[p],
-                tile->pixelbytes * ctx->outpic->planewidth[p],
-                ctx->outpic->planeheight[p]
-                );
-        ctx->outpic->pts = ctx->inpic.pts;
-        tile->pos = 0;
-        return 1;
-    }
-
-    return 0;
-}
-
-void tile_uninit(struct vf_dlopen_context *ctx)
-{
-    tile_data_t *tile = ctx->priv;
-    free(tile->buffer_plane[3]);
-    free(tile->buffer_plane[2]);
-    free(tile->buffer_plane[1]);
-    free(tile->buffer_plane[0]);
-    free(tile);
-}
-
-int vf_dlopen_getcontext(struct vf_dlopen_context *ctx, int argc, const char **argv)
-{
-    VF_DLOPEN_CHECK_VERSION(ctx);
-
-    if (argc != 2)
-        return -1;
-
-    tile_data_t *tile = calloc(1,sizeof(tile_data_t));
-
-    tile->cols = atoi(argv[0]);
-    tile->rows = atoi(argv[1]);
-
-    if (!tile->rows || !tile->cols) {
-        printf("tile: invalid rows/cols\n");
-        free(tile);
-        return -1;
-    }
-
-    ctx->priv = tile;
-    static struct vf_dlopen_formatpair map[] = {
-#define FORMAT(fmt,sz,xmul,ymul) {fmt, NULL},
-        ALLFORMATS
-#undef FORMAT
-        {NULL, NULL}
-    };
-    ctx->format_mapping = map;
-    ctx->config = tile_config;
-    ctx->put_image = tile_put_image;
-    ctx->uninit = tile_uninit;
-
-    return 1;
-}