0,0 → 1,530 |
/* |
* 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 |
*/ |
|
#include <dlfcn.h> |
#include <frei0r.h> |
#include <stdio.h> |
#include <string.h> |
#include <stdlib.h> |
#include "config.h" |
#include "libavutil/avstring.h" |
#include "libavutil/imgutils.h" |
#include "libavutil/internal.h" |
#include "libavutil/mathematics.h" |
#include "libavutil/mem.h" |
#include "libavutil/opt.h" |
#include "libavutil/parseutils.h" |
#include "avfilter.h" |
#include "formats.h" |
#include "internal.h" |
#include "video.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 { |
const AVClass *class; |
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 *dl_name; |
char *params; |
AVRational framerate; |
|
/* only used by the source */ |
int w, h; |
AVRational time_base; |
uint64_t pts; |
} Frei0rContext; |
|
static void *load_sym(AVFilterContext *ctx, const char *sym_name) |
{ |
Frei0rContext *s = ctx->priv; |
void *sym = dlsym(s->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 *s = 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, -1, 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; |
} |
|
s->set_param_value(s->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 *s = ctx->priv; |
int i; |
|
if (!params) |
return 0; |
|
for (i = 0; i < s->plugin_info.num_params; i++) { |
f0r_param_info_t info; |
char *param; |
int ret; |
|
s->get_param_info(&info, i); |
|
if (*params) { |
if (!(param = av_get_token(¶ms, "|"))) |
return AVERROR(ENOMEM); |
if (*params) |
params++; /* skip ':' */ |
ret = set_param(ctx, info, i, param); |
av_free(param); |
if (ret < 0) |
return ret; |
} |
|
av_log(ctx, AV_LOG_VERBOSE, |
"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_DEBUG, "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; |
s->get_param_value(s->instance, v, i); |
av_log(ctx, AV_LOG_DEBUG, "%s", d >= 0.5 && d <= 1.0 ? "y" : "n"); |
break; |
case F0R_PARAM_DOUBLE: |
v = &d; |
s->get_param_value(s->instance, v, i); |
av_log(ctx, AV_LOG_DEBUG, "%f", d); |
break; |
case F0R_PARAM_COLOR: |
v = &col; |
s->get_param_value(s->instance, v, i); |
av_log(ctx, AV_LOG_DEBUG, "%f/%f/%f", col.r, col.g, col.b); |
break; |
case F0R_PARAM_POSITION: |
v = &pos; |
s->get_param_value(s->instance, v, i); |
av_log(ctx, AV_LOG_DEBUG, "%f/%f", pos.x, pos.y); |
break; |
default: /* F0R_PARAM_STRING */ |
v = s; |
s->get_param_value(s->instance, v, i); |
av_log(ctx, AV_LOG_DEBUG, "'%s'\n", s); |
break; |
} |
#endif |
av_log(ctx, AV_LOG_VERBOSE, "\n"); |
} |
|
return 0; |
} |
|
static int load_path(AVFilterContext *ctx, void **handle_ptr, const char *prefix, const char *name) |
{ |
char *path = av_asprintf("%s%s%s", prefix, name, SLIBSUF); |
if (!path) |
return AVERROR(ENOMEM); |
av_log(ctx, AV_LOG_DEBUG, "Looking for frei0r effect in '%s'\n", path); |
*handle_ptr = dlopen(path, RTLD_NOW|RTLD_LOCAL); |
av_free(path); |
return 0; |
} |
|
static av_cold int frei0r_init(AVFilterContext *ctx, |
const char *dl_name, int type) |
{ |
Frei0rContext *s = ctx->priv; |
f0r_init_f f0r_init; |
f0r_get_plugin_info_f f0r_get_plugin_info; |
f0r_plugin_info_t *pi; |
char *path; |
int ret = 0; |
|
if (!dl_name) { |
av_log(ctx, AV_LOG_ERROR, "No filter name provided.\n"); |
return AVERROR(EINVAL); |
} |
|
/* see: http://frei0r.dyne.org/codedoc/html/group__pluglocations.html */ |
if ((path = av_strdup(getenv("FREI0R_PATH")))) { |
#ifdef _WIN32 |
const char *separator = ";"; |
#else |
const char *separator = ":"; |
#endif |
char *p, *ptr = NULL; |
for (p = path; p = av_strtok(p, separator, &ptr); p = NULL) { |
/* add additional trailing slash in case it is missing */ |
char *p1 = av_asprintf("%s/", p); |
if (!p1) { |
ret = AVERROR(ENOMEM); |
goto check_path_end; |
} |
ret = load_path(ctx, &s->dl_handle, p1, dl_name); |
av_free(p1); |
if (ret < 0) |
goto check_path_end; |
if (s->dl_handle) |
break; |
} |
|
check_path_end: |
av_free(path); |
if (ret < 0) |
return ret; |
} |
if (!s->dl_handle && (path = getenv("HOME"))) { |
char *prefix = av_asprintf("%s/.frei0r-1/lib/", path); |
if (!prefix) |
return AVERROR(ENOMEM); |
ret = load_path(ctx, &s->dl_handle, prefix, dl_name); |
av_free(prefix); |
if (ret < 0) |
return ret; |
} |
if (!s->dl_handle) { |
ret = load_path(ctx, &s->dl_handle, "/usr/local/lib/frei0r-1/", dl_name); |
if (ret < 0) |
return ret; |
} |
if (!s->dl_handle) { |
ret = load_path(ctx, &s->dl_handle, "/usr/lib/frei0r-1/", dl_name); |
if (ret < 0) |
return ret; |
} |
if (!s->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")) || |
!(s->get_param_info = load_sym(ctx, "f0r_get_param_info" )) || |
!(s->get_param_value = load_sym(ctx, "f0r_get_param_value")) || |
!(s->set_param_value = load_sym(ctx, "f0r_set_param_value")) || |
!(s->update = load_sym(ctx, "f0r_update" )) || |
!(s->construct = load_sym(ctx, "f0r_construct" )) || |
!(s->destruct = load_sym(ctx, "f0r_destruct" )) || |
!(s->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\n"); |
return AVERROR(EINVAL); |
} |
|
f0r_get_plugin_info(&s->plugin_info); |
pi = &s->plugin_info; |
if (pi->plugin_type != type) { |
av_log(ctx, AV_LOG_ERROR, |
"Invalid type '%s' for the plugin\n", |
pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ? "filter" : |
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_VERBOSE, |
"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 int filter_init(AVFilterContext *ctx) |
{ |
Frei0rContext *s = ctx->priv; |
|
return frei0r_init(ctx, s->dl_name, F0R_PLUGIN_TYPE_FILTER); |
} |
|
static av_cold void uninit(AVFilterContext *ctx) |
{ |
Frei0rContext *s = ctx->priv; |
|
if (s->destruct && s->instance) |
s->destruct(s->instance); |
if (s->deinit) |
s->deinit(); |
if (s->dl_handle) |
dlclose(s->dl_handle); |
} |
|
static int config_input_props(AVFilterLink *inlink) |
{ |
AVFilterContext *ctx = inlink->dst; |
Frei0rContext *s = ctx->priv; |
|
if (s->destruct && s->instance) |
s->destruct(s->instance); |
if (!(s->instance = s->construct(inlink->w, inlink->h))) { |
av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance\n"); |
return AVERROR(EINVAL); |
} |
|
return set_params(ctx, s->params); |
} |
|
static int query_formats(AVFilterContext *ctx) |
{ |
Frei0rContext *s = ctx->priv; |
AVFilterFormats *formats = NULL; |
|
if (s->plugin_info.color_model == F0R_COLOR_MODEL_BGRA8888) { |
ff_add_format(&formats, AV_PIX_FMT_BGRA); |
} else if (s->plugin_info.color_model == F0R_COLOR_MODEL_RGBA8888) { |
ff_add_format(&formats, AV_PIX_FMT_RGBA); |
} else { /* F0R_COLOR_MODEL_PACKED32 */ |
static const enum AVPixelFormat pix_fmts[] = { |
AV_PIX_FMT_BGRA, AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_ARGB, AV_PIX_FMT_NONE |
}; |
formats = ff_make_format_list(pix_fmts); |
} |
|
if (!formats) |
return AVERROR(ENOMEM); |
|
ff_set_common_formats(ctx, formats); |
return 0; |
} |
|
static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
{ |
Frei0rContext *s = inlink->dst->priv; |
AVFilterLink *outlink = inlink->dst->outputs[0]; |
AVFrame *out; |
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
if (!out) { |
av_frame_free(&in); |
return AVERROR(ENOMEM); |
} |
av_frame_copy_props(out, in); |
|
s->update(s->instance, in->pts * av_q2d(inlink->time_base) * 1000, |
(const uint32_t *)in->data[0], |
(uint32_t *)out->data[0]); |
|
av_frame_free(&in); |
|
return ff_filter_frame(outlink, out); |
} |
|
#define OFFSET(x) offsetof(Frei0rContext, x) |
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
static const AVOption frei0r_options[] = { |
{ "filter_name", NULL, OFFSET(dl_name), AV_OPT_TYPE_STRING, .flags = FLAGS }, |
{ "filter_params", NULL, OFFSET(params), AV_OPT_TYPE_STRING, .flags = FLAGS }, |
{ NULL } |
}; |
|
AVFILTER_DEFINE_CLASS(frei0r); |
|
static const AVFilterPad avfilter_vf_frei0r_inputs[] = { |
{ |
.name = "default", |
.type = AVMEDIA_TYPE_VIDEO, |
.config_props = config_input_props, |
.filter_frame = filter_frame, |
}, |
{ NULL } |
}; |
|
static const AVFilterPad avfilter_vf_frei0r_outputs[] = { |
{ |
.name = "default", |
.type = AVMEDIA_TYPE_VIDEO, |
}, |
{ NULL } |
}; |
|
AVFilter avfilter_vf_frei0r = { |
.name = "frei0r", |
.description = NULL_IF_CONFIG_SMALL("Apply a frei0r effect."), |
.query_formats = query_formats, |
.init = filter_init, |
.uninit = uninit, |
.priv_size = sizeof(Frei0rContext), |
.priv_class = &frei0r_class, |
.inputs = avfilter_vf_frei0r_inputs, |
.outputs = avfilter_vf_frei0r_outputs, |
}; |
|
static av_cold int source_init(AVFilterContext *ctx) |
{ |
Frei0rContext *s = ctx->priv; |
|
s->time_base.num = s->framerate.den; |
s->time_base.den = s->framerate.num; |
|
return frei0r_init(ctx, s->dl_name, F0R_PLUGIN_TYPE_SOURCE); |
} |
|
static int source_config_props(AVFilterLink *outlink) |
{ |
AVFilterContext *ctx = outlink->src; |
Frei0rContext *s = ctx->priv; |
|
if (av_image_check_size(s->w, s->h, 0, ctx) < 0) |
return AVERROR(EINVAL); |
outlink->w = s->w; |
outlink->h = s->h; |
outlink->time_base = s->time_base; |
outlink->sample_aspect_ratio = (AVRational){1,1}; |
|
if (s->destruct && s->instance) |
s->destruct(s->instance); |
if (!(s->instance = s->construct(outlink->w, outlink->h))) { |
av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance\n"); |
return AVERROR(EINVAL); |
} |
|
return set_params(ctx, s->params); |
} |
|
static int source_request_frame(AVFilterLink *outlink) |
{ |
Frei0rContext *s = outlink->src->priv; |
AVFrame *frame = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
|
if (!frame) |
return AVERROR(ENOMEM); |
|
frame->sample_aspect_ratio = (AVRational) {1, 1}; |
frame->pts = s->pts++; |
|
s->update(s->instance, av_rescale_q(frame->pts, s->time_base, (AVRational){1,1000}), |
NULL, (uint32_t *)frame->data[0]); |
|
return ff_filter_frame(outlink, frame); |
} |
|
static const AVOption frei0r_src_options[] = { |
{ "size", "Dimensions of the generated video.", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, { .str = "320x240" }, .flags = FLAGS }, |
{ "framerate", NULL, OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, .flags = FLAGS }, |
{ "filter_name", NULL, OFFSET(dl_name), AV_OPT_TYPE_STRING, .flags = FLAGS }, |
{ "filter_params", NULL, OFFSET(params), AV_OPT_TYPE_STRING, .flags = FLAGS }, |
{ NULL }, |
}; |
|
AVFILTER_DEFINE_CLASS(frei0r_src); |
|
static const AVFilterPad avfilter_vsrc_frei0r_src_outputs[] = { |
{ |
.name = "default", |
.type = AVMEDIA_TYPE_VIDEO, |
.request_frame = source_request_frame, |
.config_props = source_config_props |
}, |
{ NULL } |
}; |
|
AVFilter avfilter_vsrc_frei0r_src = { |
.name = "frei0r_src", |
.description = NULL_IF_CONFIG_SMALL("Generate a frei0r source."), |
.priv_size = sizeof(Frei0rContext), |
.priv_class = &frei0r_src_class, |
.init = source_init, |
.uninit = uninit, |
.query_formats = query_formats, |
.inputs = NULL, |
.outputs = avfilter_vsrc_frei0r_src_outputs, |
}; |