From 47941088f9d157216e942f6172cd39378493f52d Mon Sep 17 00:00:00 2001 From: Stefano Sabatini Date: Fri, 24 Sep 2010 00:32:22 +0000 Subject: 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 --- libavfilter/vf_frei0r.c | 363 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 363 insertions(+) create mode 100644 libavfilter/vf_frei0r.c (limited to 'libavfilter/vf_frei0r.c') diff --git a/libavfilter/vf_frei0r.c b/libavfilter/vf_frei0r.c new file mode 100644 index 0000000000..eb09ee98a8 --- /dev/null +++ b/libavfilter/vf_frei0r.c @@ -0,0 +1,363 @@ +/* + * 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 +#include +#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(¶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.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}}, +}; -- cgit v1.2.3