[PATCH] Add frei0r filter.

Stefano Sabatini stefano.sabatini-lala
Tue Aug 24 19:48:57 CEST 2010


---
 configure                |    8 ++
 libavfilter/Makefile     |    1 +
 libavfilter/allfilters.c |    1 +
 libavfilter/vf_frei0r.c  |  200 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 210 insertions(+), 0 deletions(-)
 create mode 100644 libavfilter/vf_frei0r.c

diff --git a/configure b/configure
index 9f2cfaa..db98065 100755
--- a/configure
+++ b/configure
@@ -162,6 +162,7 @@ Configuration options:
 External library support:
   --enable-avisynth        enable reading of AVISynth script files [no]
   --enable-bzlib           enable bzlib [autodetect]
+  --enable-frei0r          enable frei0r video filtering
   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
@@ -863,6 +864,7 @@ CONFIG_LIST="
     ffprobe
     ffserver
     fft
+    frei0r
     golomb
     gpl
     gray
@@ -997,6 +999,7 @@ HAVE_LIST="
     fast_cmov
     fcntl
     fork
+    frei0r
     getaddrinfo
     gethrtime
     GetProcessMemoryInfo
@@ -1370,6 +1373,9 @@ vfwcap_indev_extralibs="-lavicap32"
 x11_grab_device_indev_deps="x11grab XShmCreateImage"
 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
 
+# filters
+frei0r_filter_deps="frei0r dlopen"
+
 # protocols
 gopher_protocol_deps="network"
 http_protocol_deps="network"
@@ -2682,6 +2688,7 @@ check_mathfunc truncf
 
 # these are off by default, so fail if requested and not available
 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
+enabled frei0r     && check_header frei0r.h
 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
@@ -2964,6 +2971,7 @@ echo "threading support         ${thread_type-no}"
 echo "SDL support               ${sdl-no}"
 echo "Sun medialib support      ${mlib-no}"
 echo "AVISynth enabled          ${avisynth-no}"
+echo "frei0r enabled            ${frei0r-no}"
 echo "libdc1394 support         ${libdc1394-no}"
 echo "libdirac enabled          ${libdirac-no}"
 echo "libfaac enabled           ${libfaac-no}"
diff --git a/libavfilter/Makefile b/libavfilter/Makefile
index d2a40c4..860049c 100644
--- a/libavfilter/Makefile
+++ b/libavfilter/Makefile
@@ -20,6 +20,7 @@ OBJS-$(CONFIG_ASPECT_FILTER)                 += vf_aspect.o
 OBJS-$(CONFIG_CROP_FILTER)                   += vf_crop.o
 OBJS-$(CONFIG_FIFO_FILTER)                   += vf_fifo.o
 OBJS-$(CONFIG_FORMAT_FILTER)                 += vf_format.o
+OBJS-$(CONFIG_FREI0R_FILTER)                 += vf_frei0r.o
 OBJS-$(CONFIG_HFLIP_FILTER)                  += vf_hflip.o
 OBJS-$(CONFIG_NOFORMAT_FILTER)               += vf_format.o
 OBJS-$(CONFIG_NULL_FILTER)                   += vf_null.o
diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
index 27442f6..aa3f9e7 100644
--- a/libavfilter/allfilters.c
+++ b/libavfilter/allfilters.c
@@ -40,6 +40,7 @@ void avfilter_register_all(void)
     REGISTER_FILTER (CROP,        crop,        vf);
     REGISTER_FILTER (FIFO,        fifo,        vf);
     REGISTER_FILTER (FORMAT,      format,      vf);
+    REGISTER_FILTER (FREI0R,      frei0r,      vf);
     REGISTER_FILTER (HFLIP,       hflip,       vf);
     REGISTER_FILTER (NOFORMAT,    noformat,    vf);
     REGISTER_FILTER (NULL,        null,        vf);
diff --git a/libavfilter/vf_frei0r.c b/libavfilter/vf_frei0r.c
new file mode 100644
index 0000000..3972760
--- /dev/null
+++ b/libavfilter/vf_frei0r.c
@@ -0,0 +1,200 @@
+/*
+ * Stefano Sabatini 2010
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it 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.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * frei0r wrapper
+ */
+
+#include <dlfcn.h>
+#include <frei0r.h>
+#include "avfilter.h"
+
+typedef f0r_instance_t (*f0r_construct_f)(unsigned int width, unsigned int height);
+typedef void (*f0r_destruct_f)(f0r_instance_t instance);
+typedef void (*f0r_deinit_f)(void);
+typedef int (*f0r_init_f)(void);
+typedef void (*f0r_get_plugin_info_f)(f0r_plugin_info_t *info);
+typedef void (*f0r_get_param_info_f)(f0r_param_info_t *info, int param_index);
+typedef void (*f0r_update_f)(f0r_instance_t instance, double time, const uint32_t *inframe, uint32_t *outframe);
+typedef void (*f0r_update2_f)(f0r_instance_t instance, double time, const uint32_t *inframe1, const uint32_t *inframe2, const uint32_t *inframe3, uint32_t *outframe);
+typedef void (*f0r_set_param_value_f)(f0r_instance_t *instance, f0r_param_t *param, int param_index);
+
+typedef struct Frei0rContext {
+    f0r_update_f update;
+    void *dll;
+    char dll_filename[128];
+    f0r_instance_t instance;
+    f0r_plugin_info_t plugin_info;
+} Frei0rContext;
+
+static void *load_sym(AVFilterContext *ctx, const char *sym_name)
+{
+    Frei0rContext *frei0r = ctx->priv;
+    void *sym = dlsym(frei0r->dll, sym_name);
+    if (!sym)
+        av_log(ctx, AV_LOG_ERROR,
+               "Could not find symbol '%s' in module '%s'\n", sym_name, frei0r->dll_filename);
+    return sym;
+}
+
+static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
+{
+    Frei0rContext *frei0r = ctx->priv;
+    f0r_init_f f0r_init;
+    f0r_get_plugin_info_f f0r_get_plugin_info;
+    f0r_plugin_info_t *pi;
+
+    if (args)
+        sscanf(args, "%127s", frei0r->dll_filename);
+
+    if (!(frei0r->dll = dlopen(frei0r->dll_filename, RTLD_NOW))) {
+        av_log(ctx, AV_LOG_ERROR,
+               "Could not load module '%s': %s\n", frei0r->dll_filename, dlerror());
+        return AVERROR(EINVAL);
+    }
+
+    if (!(frei0r->update = load_sym(ctx, "f0r_update")))
+        return AVERROR(EINVAL);
+
+    if (!(f0r_init = load_sym(ctx, "f0r_init")))
+        return AVERROR(EINVAL);
+    if (f0r_init() < 0) {
+        av_log(ctx, AV_LOG_ERROR, "Could not init the frei0r module");
+        return AVERROR(EINVAL);
+    }
+
+    if (!(f0r_get_plugin_info = load_sym(ctx, "f0r_get_plugin_info")))
+        return AVERROR(EINVAL);
+    f0r_get_plugin_info(&frei0r->plugin_info);
+
+    pi = &(frei0r->plugin_info);
+    if (pi->plugin_type != F0R_PLUGIN_TYPE_FILTER) {
+        av_log(ctx, AV_LOG_ERROR, "Invalid type for the plugin, not a filter plugin\n");
+        return AVERROR(EINVAL);
+    }
+
+    av_log(ctx, AV_LOG_INFO,
+           "name:%s author:'%s' explanation:'%s'\n"
+           "color_model:%s frei0r_version:%d version:%d.%d num_params:%d\n",
+           pi->name, pi->author, pi->explanation,
+           pi->color_model == F0R_COLOR_MODEL_BGRA8888 ? "bgra8888" :
+           pi->color_model == F0R_COLOR_MODEL_RGBA8888 ? "rgba8888" :
+           pi->color_model == F0R_COLOR_MODEL_PACKED32 ? "packed32" : "unknown",
+           pi->frei0r_version, pi->major_version, pi->minor_version, pi->num_params);
+    return 0;
+}
+
+static av_cold void uninit(AVFilterContext *ctx)
+{
+    Frei0rContext *frei0r = ctx->priv;
+    f0r_destruct_f f0r_destruct;
+    f0r_deinit_f f0r_deinit;
+
+    if ((f0r_destruct = load_sym(ctx, "f0r_destruct")))
+        f0r_destruct(frei0r->instance);
+    frei0r->instance = NULL;
+
+    if ((f0r_deinit = load_sym(ctx, "f0r_deinit")))
+        f0r_deinit();
+
+    frei0r->update = NULL;
+
+    if (frei0r->dll)
+        dlclose(frei0r->dll);
+    frei0r->dll = NULL;
+}
+
+static int config_input_props(AVFilterLink *inlink)
+{
+    AVFilterContext *ctx = inlink->dst;
+    Frei0rContext *frei0r = ctx->priv;
+    f0r_construct_f f0r_construct;
+    if (!(f0r_construct = load_sym(ctx, "f0r_construct")))
+        return AVERROR(EINVAL);
+
+    if (!(frei0r->instance = f0r_construct(inlink->w, inlink->h))) {
+        av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance");
+        return AVERROR(EINVAL);
+    }
+
+    return 0;
+}
+
+static int query_formats(AVFilterContext *ctx)
+{
+    Frei0rContext *frei0r = ctx->priv;
+    AVFilterFormats *formats = NULL;
+
+    if      (frei0r->plugin_info.color_model == F0R_COLOR_MODEL_BGRA8888)
+        avfilter_add_format(&formats, PIX_FMT_BGRA);
+    else if (frei0r->plugin_info.color_model == F0R_COLOR_MODEL_RGBA8888)
+        avfilter_add_format(&formats, PIX_FMT_RGBA);
+    else { /* F0R_COLOR_MODEL_PACKED32 */
+        static const enum PixelFormat pix_fmts[] = {
+            PIX_FMT_BGRA, PIX_FMT_ARGB, PIX_FMT_ABGR, PIX_FMT_ARGB, PIX_FMT_NONE
+        };
+        formats = avfilter_make_format_list(pix_fmts);
+    }
+
+    if (!formats)
+        return AVERROR(ENOMEM);
+
+    avfilter_set_common_formats(ctx, formats);
+    return 0;
+}
+
+static void draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir) { }
+
+static void end_frame(AVFilterLink *inlink)
+{
+    Frei0rContext *frei0r = inlink->dst->priv;
+    AVFilterLink *outlink = inlink->dst->outputs[0];
+    AVFilterBufferRef * inpicref = inlink ->cur_buf;
+    AVFilterBufferRef *outpicref = outlink->out_buf;
+
+    frei0r->update(frei0r->instance, (double)inpicref->pts / AV_TIME_BASE,
+                   (const uint32_t *)inpicref->data[0],
+                   (uint32_t *)outpicref->data[0]);
+    avfilter_draw_slice(outlink, 0, outlink->h, 1);
+    avfilter_end_frame(outlink);
+}
+
+AVFilter avfilter_vf_frei0r = {
+    .name      = "frei0r",
+    .description = NULL_IF_CONFIG_SMALL("Apply a frei0r effect."),
+
+    .query_formats = query_formats,
+    .init = init,
+    .uninit = uninit,
+
+    .priv_size = sizeof(Frei0rContext),
+
+    .inputs    = (AVFilterPad[]) {{ .name             = "default",
+                                    .type             = AVMEDIA_TYPE_VIDEO,
+                                    .draw_slice       = draw_slice,
+                                    .config_props     = config_input_props,
+                                    .end_frame        = end_frame,
+                                    .min_perms        = AV_PERM_READ },
+                                  { .name = NULL}},
+
+    .outputs   = (AVFilterPad[]) {{ .name             = "default",
+                                    .type             = AVMEDIA_TYPE_VIDEO, },
+                                  { .name = NULL}},
+};
-- 
1.7.1


--lrZ03NoBR/3+SXJZ--



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