Commit 47941088 authored by Stefano Sabatini's avatar Stefano Sabatini
Browse files

Add frei0r filter.

See thread:
Subject: [FFmpeg-devel] [POC] frei0r wrapper
Date: Tue, 24 Aug 2010 21:37:32 +0200

Originally committed as revision 25165 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 21e681ba
......@@ -36,6 +36,7 @@ version <next>:
- G.722 ADPCM audio encoder/decoder
- R10k video decoder
- ocv_smooth filter
- frei0r wrapper filter
version 0.6:
......
......@@ -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-libopencv enable video filtering via libopencv [no]
......@@ -873,6 +874,7 @@ CONFIG_LIST="
ffprobe
ffserver
fft
frei0r
golomb
gpl
gray
......@@ -1050,6 +1052,7 @@ HAVE_LIST="
poll_h
setrlimit
strerror_r
strtok_r
struct_addrinfo
struct_ipv6_mreq
struct_sockaddr_in6
......@@ -1383,6 +1386,9 @@ 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 strtok_r"
# protocols
gopher_protocol_deps="network"
http_protocol_deps="network"
......@@ -2647,6 +2653,7 @@ check_func mkstemp
check_func ${malloc_prefix}posix_memalign && enable posix_memalign
check_func setrlimit
check_func strerror_r
check_func strtok_r
check_func_headers io.h setmode
check_func_headers lzo/lzo1x.h lzo1x_999_compress
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
......@@ -2720,6 +2727,7 @@ 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 || die "ERROR: frei0r.h header not found"; }
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)
......@@ -3012,6 +3020,7 @@ 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 ${libfaac-no}"
......
......@@ -81,6 +81,56 @@ The following command:
will convert the input video to the format "yuv420p".
@section frei0r
Apply a frei0r effect to the input video.
To enable compilation of this filter you need to install the frei0r
header and configure FFmpeg with --enable-frei0r.
The filter supports the syntax:
@example
@var{filter_name}:@var{param1}:@var{param2}:...:@var{paramN}
@end example
@var{filter_name} is the name to the frei0r effect to load. If the
environment variable @env{FREI0R_PATH} is defined, the frei0r effect
is searched in each one of the directories specified by the colon
separated list in @env{FREIOR_PATH}, otherwise in the standard frei0r
paths, which are in this order: @file{HOME/.frei0r-1/lib/},
@file{/usr/local/lib/frei0r-1/}, @file{/usr/lib/frei0r-1/}.
@var{param1}, @var{param2}, ... , @var{paramN} specify the parameters
for the frei0r effect.
A frei0r effect parameter can be a boolean (whose values are specified
with "y" and "n"), a double, a color (specified by the syntax
@var{R}/@var{G}/@var{B}, @var{R}, @var{G}, and @var{B} being float
numbers from 0.0 to 1.0) or by an @code{av_parse_color()} color
description), a position (specified by the syntax @var{X}/@var{Y},
@var{X} and @var{Y} being float numbers) and a string.
The number and kind of parameters depend on the loaded effect. If an
effect parameter is not specified the default value is set.
Some examples follow:
@example
# apply the distort0r effect, set the first two double parameters
frei0r=distort0r:0.5:0.01
# apply the colordistance effect, takes a color as first parameter
frei0r=colordistance:0.2/0.3/0.4
frei0r=colordistance:violet
frei0r=colordistance:0x112233
# apply the perspective effect, specify the top left and top right
# image positions
frei0r=perspective:0.2/0.2:0.8/0.2
@end example
For more information see:
@url{http://piksel.org/frei0r}
@section hflip
Flip the input video horizontally.
......
......@@ -20,6 +20,7 @@ OBJS-$(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
......
......@@ -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);
......
......@@ -25,7 +25,7 @@
#include "libavutil/avutil.h"
#define LIBAVFILTER_VERSION_MAJOR 1
#define LIBAVFILTER_VERSION_MINOR 39
#define LIBAVFILTER_VERSION_MINOR 40
#define LIBAVFILTER_VERSION_MICRO 0
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
......
/*
* copyright (c) 2010 Stefano Sabatini
* 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
*/
/* #define DEBUG */
#include <dlfcn.h>
#include <frei0r.h>
#include "avfilter.h"
#include "parseutils.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 void (*f0r_get_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index);
typedef struct Frei0rContext {
f0r_update_f update;
void *dl_handle; /* dynamic library handle */
f0r_instance_t instance;
f0r_plugin_info_t plugin_info;
f0r_get_param_info_f get_param_info;
f0r_get_param_value_f get_param_value;
f0r_set_param_value_f set_param_value;
f0r_construct_f construct;
f0r_destruct_f destruct;
f0r_deinit_f deinit;
char params[256];
} Frei0rContext;
static void *load_sym(AVFilterContext *ctx, const char *sym_name)
{
Frei0rContext *frei0r = ctx->priv;
void *sym = dlsym(frei0r->dl_handle, sym_name);
if (!sym)
av_log(ctx, AV_LOG_ERROR, "Could not find symbol '%s' in loaded module\n", sym_name);
return sym;
}
static int set_param(AVFilterContext *ctx, f0r_param_info_t info, int index, char *param)
{
Frei0rContext *frei0r = ctx->priv;
union {
double d;
f0r_param_color_t col;
f0r_param_position_t pos;
} val;
char *tail;
uint8_t rgba[4];
switch (info.type) {
case F0R_PARAM_BOOL:
if (!strcmp(param, "y")) val.d = 1.0;
else if (!strcmp(param, "n")) val.d = 0.0;
else goto fail;
break;
case F0R_PARAM_DOUBLE:
val.d = strtod(param, &tail);
if (*tail || val.d == HUGE_VAL)
goto fail;
break;
case F0R_PARAM_COLOR:
if (sscanf(param, "%f/%f/%f", &val.col.r, &val.col.g, &val.col.b) != 3) {
if (av_parse_color(rgba, param, ctx) < 0)
goto fail;
val.col.r = rgba[0] / 255.0;
val.col.g = rgba[1] / 255.0;
val.col.b = rgba[2] / 255.0;
}
break;
case F0R_PARAM_POSITION:
if (sscanf(param, "%lf/%lf", &val.pos.x, &val.pos.y) != 2)
goto fail;
break;
}
frei0r->set_param_value(frei0r->instance, &val, index);
return 0;
fail:
av_log(ctx, AV_LOG_ERROR, "Invalid value '%s' for parameter '%s'\n",
param, info.name);
return AVERROR(EINVAL);
}
static int set_params(AVFilterContext *ctx, const char *params)
{
Frei0rContext *frei0r = ctx->priv;
int i;
for (i = 0; i < frei0r->plugin_info.num_params; i++) {
f0r_param_info_t info;
char *param;
int ret;
frei0r->get_param_info(&info, i);
if (*params) {
if (!(param = av_get_token(&params, ":")))
return AVERROR(ENOMEM);
params++; /* skip ':' */
ret = set_param(ctx, info, i, param);
av_free(param);
if (ret < 0)
return ret;
}
av_log(ctx, AV_LOG_INFO,
"idx:%d name:'%s' type:%s explanation:'%s' ",
i, info.name,
info.type == F0R_PARAM_BOOL ? "bool" :
info.type == F0R_PARAM_DOUBLE ? "double" :
info.type == F0R_PARAM_COLOR ? "color" :
info.type == F0R_PARAM_POSITION ? "position" :
info.type == F0R_PARAM_STRING ? "string" : "unknown",
info.explanation);
#ifdef DEBUG
av_log(ctx, AV_LOG_INFO, "value:");
switch (info.type) {
void *v;
double d;
char s[128];
f0r_param_color_t col;
f0r_param_position_t pos;
case F0R_PARAM_BOOL:
v = &d;
frei0r->get_param_value(frei0r->instance, v, i);
av_log(ctx, AV_LOG_INFO, "%s", d >= 0.5 && d <= 1.0 ? "y" : "n");
break;
case F0R_PARAM_DOUBLE:
v = &d;
frei0r->get_param_value(frei0r->instance, v, i);
av_log(ctx, AV_LOG_INFO, "%f", d);
break;
case F0R_PARAM_COLOR:
v = &col;
frei0r->get_param_value(frei0r->instance, v, i);
av_log(ctx, AV_LOG_INFO, "%f/%f/%f", col.r, col.g, col.b);
break;
case F0R_PARAM_POSITION:
v = &pos;
frei0r->get_param_value(frei0r->instance, v, i);
av_log(ctx, AV_LOG_INFO, "%lf/%lf", pos.x, pos.y);
break;
default: /* F0R_PARAM_STRING */
v = s;
frei0r->get_param_value(frei0r->instance, v, i);
av_log(ctx, AV_LOG_INFO, "'%s'\n", s);
break;
}
#endif
av_log(ctx, AV_LOG_INFO, "\n");
}
return 0;
}
static void *load_path(AVFilterContext *ctx, const char *prefix, const char *name)
{
char path[1024];
snprintf(path, sizeof(path), "%s%s.so", prefix, name);
av_log(ctx, AV_LOG_DEBUG, "Looking for frei0r effect in '%s'\n", path);
return dlopen(path, RTLD_NOW|RTLD_LOCAL);
}
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;
char dl_name[1024], *path;
*frei0r->params = 0;
if (args)
sscanf(args, "%1023[^:]:%255c", dl_name, frei0r->params);
/* see: http://piksel.org/frei0r/1.2/spec/1.2/spec/group__pluglocations.html */
if ((path = av_strdup(getenv("FREI0R_PATH")))) {
char *p, *ptr = NULL;
for (p = path; p = strtok_r(p, ":", &ptr); p = NULL)
if (frei0r->dl_handle = load_path(ctx, p, dl_name))
break;
av_free(path);
}
if (!frei0r->dl_handle && (path = av_strdup(getenv("HOME")))) {
char prefix[1024];
snprintf(prefix, sizeof(prefix), "%s/.frei0r-1/lib/", path);
frei0r->dl_handle = load_path(ctx, prefix, dl_name);
av_free(path);
}
if (!frei0r->dl_handle)
frei0r->dl_handle = load_path(ctx, "/usr/local/lib/frei0r-1/", dl_name);
if (!frei0r->dl_handle)
frei0r->dl_handle = load_path(ctx, "/usr/lib/frei0r-1/", dl_name);
if (!frei0r->dl_handle) {
av_log(ctx, AV_LOG_ERROR, "Could not find module '%s'\n", dl_name);
return AVERROR(EINVAL);
}
if (!(f0r_init = load_sym(ctx, "f0r_init" )) ||
!(f0r_get_plugin_info = load_sym(ctx, "f0r_get_plugin_info")) ||
!(frei0r->get_param_info = load_sym(ctx, "f0r_get_param_info" )) ||
!(frei0r->get_param_value = load_sym(ctx, "f0r_get_param_value")) ||
!(frei0r->set_param_value = load_sym(ctx, "f0r_set_param_value")) ||
!(frei0r->update = load_sym(ctx, "f0r_update" )) ||
!(frei0r->construct = load_sym(ctx, "f0r_construct" )) ||
!(frei0r->destruct = load_sym(ctx, "f0r_destruct" )) ||
!(frei0r->deinit = load_sym(ctx, "f0r_deinit" )))
return AVERROR(EINVAL);
if (f0r_init() < 0) {
av_log(ctx, AV_LOG_ERROR, "Could not init the frei0r module");
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 '%s' for the plugin, a filter plugin was expected\n",
pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ? "source" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ? "mixer2" :
pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ? "mixer3" : "unknown");
return AVERROR(EINVAL);
}
av_log(ctx, AV_LOG_INFO,
"name:%s author:'%s' explanation:'%s' 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;
if (frei0r->destruct)
frei0r->destruct(frei0r->instance);
if (frei0r->deinit)
frei0r->deinit();
if (frei0r->dl_handle)
dlclose(frei0r->dl_handle);
memset(frei0r, 0, sizeof(*frei0r));
}
static int config_input_props(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
Frei0rContext *frei0r = ctx->priv;
if (!(frei0r->instance = frei0r->construct(inlink->w, inlink->h))) {
av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance");
return AVERROR(EINVAL);
}
return set_params(ctx, frei0r->params);
}
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 null_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_unref_buffer(inpicref);
avfilter_draw_slice(outlink, 0, outlink->h, 1);
avfilter_end_frame(outlink);
avfilter_unref_buffer(outpicref);
}
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 = null_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}},
};
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment