| /* |
| * 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 "libavutil/avstring.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/parseutils.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 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]; |
| |
| /* 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 *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, -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; |
| } |
| |
| 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(¶ms, ":"))) |
| 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%s", prefix, name, SLIBSUF); |
| 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 frei0r_init(AVFilterContext *ctx, |
| const char *dl_name, int type) |
| { |
| Frei0rContext *frei0r = ctx->priv; |
| f0r_init_f f0r_init; |
| f0r_get_plugin_info_f f0r_get_plugin_info; |
| f0r_plugin_info_t *pi; |
| char *path; |
| |
| /* 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 = getenv("HOME"))) { |
| char prefix[1024]; |
| snprintf(prefix, sizeof(prefix), "%s/.frei0r-1/lib/", path); |
| frei0r->dl_handle = load_path(ctx, prefix, dl_name); |
| } |
| 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 != 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_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 int filter_init(AVFilterContext *ctx, const char *args, void *opaque) |
| { |
| Frei0rContext *frei0r = ctx->priv; |
| char dl_name[1024], c; |
| *frei0r->params = 0; |
| |
| if (args) |
| sscanf(args, "%1023[^:=]%c%255c", dl_name, &c, frei0r->params); |
| |
| return frei0r_init(ctx, dl_name, F0R_PLUGIN_TYPE_FILTER); |
| } |
| |
| static av_cold void uninit(AVFilterContext *ctx) |
| { |
| Frei0rContext *frei0r = ctx->priv; |
| |
| if (frei0r->destruct && frei0r->instance) |
| 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_pixel_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, inpicref->pts * av_q2d(inlink->time_base) * 1000, |
| (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 = filter_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}}, |
| }; |
| |
| static av_cold int source_init(AVFilterContext *ctx, const char *args, void *opaque) |
| { |
| Frei0rContext *frei0r = ctx->priv; |
| char dl_name[1024], c; |
| char frame_size[128] = ""; |
| char frame_rate[128] = ""; |
| AVRational frame_rate_q; |
| |
| memset(frei0r->params, 0, sizeof(frei0r->params)); |
| |
| if (args) |
| sscanf(args, "%127[^:]:%127[^:]:%1023[^:=]%c%255c", |
| frame_size, frame_rate, dl_name, &c, frei0r->params); |
| |
| if (av_parse_video_size(&frei0r->w, &frei0r->h, frame_size) < 0) { |
| av_log(ctx, AV_LOG_ERROR, "Invalid frame size: '%s'\n", frame_size); |
| return AVERROR(EINVAL); |
| } |
| |
| if (av_parse_video_rate(&frame_rate_q, frame_rate) < 0 || |
| frame_rate_q.den <= 0 || frame_rate_q.num <= 0) { |
| av_log(ctx, AV_LOG_ERROR, "Invalid frame rate: '%s'\n", frame_rate); |
| return AVERROR(EINVAL); |
| } |
| frei0r->time_base.num = frame_rate_q.den; |
| frei0r->time_base.den = frame_rate_q.num; |
| |
| return frei0r_init(ctx, dl_name, F0R_PLUGIN_TYPE_SOURCE); |
| } |
| |
| static int source_config_props(AVFilterLink *outlink) |
| { |
| AVFilterContext *ctx = outlink->src; |
| Frei0rContext *frei0r = ctx->priv; |
| |
| if (av_image_check_size(frei0r->w, frei0r->h, 0, ctx) < 0) |
| return AVERROR(EINVAL); |
| outlink->w = frei0r->w; |
| outlink->h = frei0r->h; |
| outlink->time_base = frei0r->time_base; |
| |
| if (!(frei0r->instance = frei0r->construct(outlink->w, outlink->h))) { |
| av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance"); |
| return AVERROR(EINVAL); |
| } |
| |
| return set_params(ctx, frei0r->params); |
| } |
| |
| static int source_request_frame(AVFilterLink *outlink) |
| { |
| Frei0rContext *frei0r = outlink->src->priv; |
| AVFilterBufferRef *picref = avfilter_get_video_buffer(outlink, AV_PERM_WRITE, outlink->w, outlink->h); |
| picref->video->sample_aspect_ratio = (AVRational) {1, 1}; |
| picref->pts = frei0r->pts++; |
| picref->pos = -1; |
| |
| avfilter_start_frame(outlink, avfilter_ref_buffer(picref, ~0)); |
| frei0r->update(frei0r->instance, av_rescale_q(picref->pts, frei0r->time_base, (AVRational){1,1000}), |
| NULL, (uint32_t *)picref->data[0]); |
| avfilter_draw_slice(outlink, 0, outlink->h, 1); |
| avfilter_end_frame(outlink); |
| avfilter_unref_buffer(picref); |
| |
| return 0; |
| } |
| |
| AVFilter avfilter_vsrc_frei0r_src = { |
| .name = "frei0r_src", |
| .description = NULL_IF_CONFIG_SMALL("Generate a frei0r source."), |
| |
| .priv_size = sizeof(Frei0rContext), |
| .init = source_init, |
| .uninit = uninit, |
| |
| .query_formats = query_formats, |
| |
| .inputs = (AVFilterPad[]) {{ .name = NULL}}, |
| |
| .outputs = (AVFilterPad[]) {{ .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .request_frame = source_request_frame, |
| .config_props = source_config_props }, |
| { .name = NULL}}, |
| }; |