Subversion Repositories Kolibri OS

Rev

Blame | Last modification | View Log | RSS feed

  1. /*
  2.  * Copyright (c) 2010 Stefano Sabatini
  3.  * This file is part of FFmpeg.
  4.  *
  5.  * FFmpeg is free software; you can redistribute it and/or
  6.  * modify it under the terms of the GNU Lesser General Public
  7.  * License as published by the Free Software Foundation; either
  8.  * version 2.1 of the License, or (at your option) any later version.
  9.  *
  10.  * FFmpeg is distributed in the hope that it will be useful,
  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13.  * Lesser General Public License for more details.
  14.  *
  15.  * You should have received a copy of the GNU Lesser General Public
  16.  * License along with FFmpeg; if not, write to the Free Software
  17.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  18.  */
  19.  
  20. /**
  21.  * @file
  22.  * frei0r wrapper
  23.  */
  24.  
  25. #include <dlfcn.h>
  26. #include <frei0r.h>
  27. #include <stdio.h>
  28. #include <string.h>
  29. #include <stdlib.h>
  30. #include "config.h"
  31. #include "libavutil/avstring.h"
  32. #include "libavutil/common.h"
  33. #include "libavutil/imgutils.h"
  34. #include "libavutil/internal.h"
  35. #include "libavutil/mathematics.h"
  36. #include "libavutil/mem.h"
  37. #include "libavutil/opt.h"
  38. #include "libavutil/parseutils.h"
  39. #include "avfilter.h"
  40. #include "formats.h"
  41. #include "internal.h"
  42. #include "video.h"
  43.  
  44. typedef f0r_instance_t (*f0r_construct_f)(unsigned int width, unsigned int height);
  45. typedef void (*f0r_destruct_f)(f0r_instance_t instance);
  46. typedef void (*f0r_deinit_f)(void);
  47. typedef int (*f0r_init_f)(void);
  48. typedef void (*f0r_get_plugin_info_f)(f0r_plugin_info_t *info);
  49. typedef void (*f0r_get_param_info_f)(f0r_param_info_t *info, int param_index);
  50. typedef void (*f0r_update_f)(f0r_instance_t instance, double time, const uint32_t *inframe, uint32_t *outframe);
  51. 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);
  52. typedef void (*f0r_set_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index);
  53. typedef void (*f0r_get_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index);
  54.  
  55. typedef struct Frei0rContext {
  56.     const AVClass *class;
  57.     f0r_update_f update;
  58.     void *dl_handle;            /* dynamic library handle   */
  59.     f0r_instance_t instance;
  60.     f0r_plugin_info_t plugin_info;
  61.  
  62.     f0r_get_param_info_f  get_param_info;
  63.     f0r_get_param_value_f get_param_value;
  64.     f0r_set_param_value_f set_param_value;
  65.     f0r_construct_f       construct;
  66.     f0r_destruct_f        destruct;
  67.     f0r_deinit_f          deinit;
  68.  
  69.     char *dl_name;
  70.     char *params;
  71.     AVRational framerate;
  72.  
  73.     /* only used by the source */
  74.     int w, h;
  75.     AVRational time_base;
  76.     uint64_t pts;
  77. } Frei0rContext;
  78.  
  79. static void *load_sym(AVFilterContext *ctx, const char *sym_name)
  80. {
  81.     Frei0rContext *s = ctx->priv;
  82.     void *sym = dlsym(s->dl_handle, sym_name);
  83.     if (!sym)
  84.         av_log(ctx, AV_LOG_ERROR, "Could not find symbol '%s' in loaded module.\n", sym_name);
  85.     return sym;
  86. }
  87.  
  88. static int set_param(AVFilterContext *ctx, f0r_param_info_t info, int index, char *param)
  89. {
  90.     Frei0rContext *s = ctx->priv;
  91.     union {
  92.         double d;
  93.         f0r_param_color_t col;
  94.         f0r_param_position_t pos;
  95.     } val;
  96.     char *tail;
  97.     uint8_t rgba[4];
  98.  
  99.     switch (info.type) {
  100.     case F0R_PARAM_BOOL:
  101.         if      (!strcmp(param, "y")) val.d = 1.0;
  102.         else if (!strcmp(param, "n")) val.d = 0.0;
  103.         else goto fail;
  104.         break;
  105.  
  106.     case F0R_PARAM_DOUBLE:
  107.         val.d = strtod(param, &tail);
  108.         if (*tail || val.d == HUGE_VAL)
  109.             goto fail;
  110.         break;
  111.  
  112.     case F0R_PARAM_COLOR:
  113.         if (sscanf(param, "%f/%f/%f", &val.col.r, &val.col.g, &val.col.b) != 3) {
  114.             if (av_parse_color(rgba, param, -1, ctx) < 0)
  115.                 goto fail;
  116.             val.col.r = rgba[0] / 255.0;
  117.             val.col.g = rgba[1] / 255.0;
  118.             val.col.b = rgba[2] / 255.0;
  119.         }
  120.         break;
  121.  
  122.     case F0R_PARAM_POSITION:
  123.         if (sscanf(param, "%lf/%lf", &val.pos.x, &val.pos.y) != 2)
  124.             goto fail;
  125.         break;
  126.     }
  127.  
  128.     s->set_param_value(s->instance, &val, index);
  129.     return 0;
  130.  
  131. fail:
  132.     av_log(ctx, AV_LOG_ERROR, "Invalid value '%s' for parameter '%s'.\n",
  133.            param, info.name);
  134.     return AVERROR(EINVAL);
  135. }
  136.  
  137. static int set_params(AVFilterContext *ctx, const char *params)
  138. {
  139.     Frei0rContext *s = ctx->priv;
  140.     int i;
  141.  
  142.     if (!params)
  143.         return 0;
  144.  
  145.     for (i = 0; i < s->plugin_info.num_params; i++) {
  146.         f0r_param_info_t info;
  147.         char *param;
  148.         int ret;
  149.  
  150.         s->get_param_info(&info, i);
  151.  
  152.         if (*params) {
  153.             if (!(param = av_get_token(&params, "|")))
  154.                 return AVERROR(ENOMEM);
  155.             if (*params)
  156.                 params++;               /* skip ':' */
  157.             ret = set_param(ctx, info, i, param);
  158.             av_free(param);
  159.             if (ret < 0)
  160.                 return ret;
  161.         }
  162.  
  163.         av_log(ctx, AV_LOG_VERBOSE,
  164.                "idx:%d name:'%s' type:%s explanation:'%s' ",
  165.                i, info.name,
  166.                info.type == F0R_PARAM_BOOL     ? "bool"     :
  167.                info.type == F0R_PARAM_DOUBLE   ? "double"   :
  168.                info.type == F0R_PARAM_COLOR    ? "color"    :
  169.                info.type == F0R_PARAM_POSITION ? "position" :
  170.                info.type == F0R_PARAM_STRING   ? "string"   : "unknown",
  171.                info.explanation);
  172.  
  173. #ifdef DEBUG
  174.         av_log(ctx, AV_LOG_DEBUG, "value:");
  175.         switch (info.type) {
  176.             void *v;
  177.             double d;
  178.             char str[128];
  179.             f0r_param_color_t col;
  180.             f0r_param_position_t pos;
  181.  
  182.         case F0R_PARAM_BOOL:
  183.             v = &d;
  184.             s->get_param_value(s->instance, v, i);
  185.             av_log(ctx, AV_LOG_DEBUG, "%s", d >= 0.5 && d <= 1.0 ? "y" : "n");
  186.             break;
  187.         case F0R_PARAM_DOUBLE:
  188.             v = &d;
  189.             s->get_param_value(s->instance, v, i);
  190.             av_log(ctx, AV_LOG_DEBUG, "%f", d);
  191.             break;
  192.         case F0R_PARAM_COLOR:
  193.             v = &col;
  194.             s->get_param_value(s->instance, v, i);
  195.             av_log(ctx, AV_LOG_DEBUG, "%f/%f/%f", col.r, col.g, col.b);
  196.             break;
  197.         case F0R_PARAM_POSITION:
  198.             v = &pos;
  199.             s->get_param_value(s->instance, v, i);
  200.             av_log(ctx, AV_LOG_DEBUG, "%f/%f", pos.x, pos.y);
  201.             break;
  202.         default: /* F0R_PARAM_STRING */
  203.             v = str;
  204.             s->get_param_value(s->instance, v, i);
  205.             av_log(ctx, AV_LOG_DEBUG, "'%s'", str);
  206.             break;
  207.         }
  208. #endif
  209.         av_log(ctx, AV_LOG_VERBOSE, ".\n");
  210.     }
  211.  
  212.     return 0;
  213. }
  214.  
  215. static int load_path(AVFilterContext *ctx, void **handle_ptr, const char *prefix, const char *name)
  216. {
  217.     char *path = av_asprintf("%s%s%s", prefix, name, SLIBSUF);
  218.     if (!path)
  219.         return AVERROR(ENOMEM);
  220.     av_log(ctx, AV_LOG_DEBUG, "Looking for frei0r effect in '%s'.\n", path);
  221.     *handle_ptr = dlopen(path, RTLD_NOW|RTLD_LOCAL);
  222.     av_free(path);
  223.     return 0;
  224. }
  225.  
  226. static av_cold int frei0r_init(AVFilterContext *ctx,
  227.                                const char *dl_name, int type)
  228. {
  229.     Frei0rContext *s = ctx->priv;
  230.     f0r_init_f            f0r_init;
  231.     f0r_get_plugin_info_f f0r_get_plugin_info;
  232.     f0r_plugin_info_t *pi;
  233.     char *path;
  234.     int ret = 0;
  235.     int i;
  236.     static const char* const frei0r_pathlist[] = {
  237.         "/usr/local/lib/frei0r-1/",
  238.         "/usr/lib/frei0r-1/",
  239.         "/usr/local/lib64/frei0r-1/",
  240.         "/usr/lib64/frei0r-1/"
  241.     };
  242.  
  243.     if (!dl_name) {
  244.         av_log(ctx, AV_LOG_ERROR, "No filter name provided.\n");
  245.         return AVERROR(EINVAL);
  246.     }
  247.  
  248.     /* see: http://frei0r.dyne.org/codedoc/html/group__pluglocations.html */
  249.     if ((path = av_strdup(getenv("FREI0R_PATH")))) {
  250. #ifdef _WIN32
  251.         const char *separator = ";";
  252. #else
  253.         const char *separator = ":";
  254. #endif
  255.         char *p, *ptr = NULL;
  256.         for (p = path; p = av_strtok(p, separator, &ptr); p = NULL) {
  257.             /* add additional trailing slash in case it is missing */
  258.             char *p1 = av_asprintf("%s/", p);
  259.             if (!p1) {
  260.                 ret = AVERROR(ENOMEM);
  261.                 goto check_path_end;
  262.             }
  263.             ret = load_path(ctx, &s->dl_handle, p1, dl_name);
  264.             av_free(p1);
  265.             if (ret < 0)
  266.                 goto check_path_end;
  267.             if (s->dl_handle)
  268.                 break;
  269.         }
  270.  
  271.     check_path_end:
  272.         av_free(path);
  273.         if (ret < 0)
  274.             return ret;
  275.     }
  276.     if (!s->dl_handle && (path = getenv("HOME"))) {
  277.         char *prefix = av_asprintf("%s/.frei0r-1/lib/", path);
  278.         if (!prefix)
  279.             return AVERROR(ENOMEM);
  280.         ret = load_path(ctx, &s->dl_handle, prefix, dl_name);
  281.         av_free(prefix);
  282.         if (ret < 0)
  283.             return ret;
  284.     }
  285.     for (i = 0; !s->dl_handle && i < FF_ARRAY_ELEMS(frei0r_pathlist); i++) {
  286.         ret = load_path(ctx, &s->dl_handle, frei0r_pathlist[i], dl_name);
  287.         if (ret < 0)
  288.             return ret;
  289.     }
  290.     if (!s->dl_handle) {
  291.         av_log(ctx, AV_LOG_ERROR, "Could not find module '%s'.\n", dl_name);
  292.         return AVERROR(EINVAL);
  293.     }
  294.  
  295.     if (!(f0r_init                = load_sym(ctx, "f0r_init"           )) ||
  296.         !(f0r_get_plugin_info     = load_sym(ctx, "f0r_get_plugin_info")) ||
  297.         !(s->get_param_info  = load_sym(ctx, "f0r_get_param_info" )) ||
  298.         !(s->get_param_value = load_sym(ctx, "f0r_get_param_value")) ||
  299.         !(s->set_param_value = load_sym(ctx, "f0r_set_param_value")) ||
  300.         !(s->update          = load_sym(ctx, "f0r_update"         )) ||
  301.         !(s->construct       = load_sym(ctx, "f0r_construct"      )) ||
  302.         !(s->destruct        = load_sym(ctx, "f0r_destruct"       )) ||
  303.         !(s->deinit          = load_sym(ctx, "f0r_deinit"         )))
  304.         return AVERROR(EINVAL);
  305.  
  306.     if (f0r_init() < 0) {
  307.         av_log(ctx, AV_LOG_ERROR, "Could not init the frei0r module.\n");
  308.         return AVERROR(EINVAL);
  309.     }
  310.  
  311.     f0r_get_plugin_info(&s->plugin_info);
  312.     pi = &s->plugin_info;
  313.     if (pi->plugin_type != type) {
  314.         av_log(ctx, AV_LOG_ERROR,
  315.                "Invalid type '%s' for this plugin\n",
  316.                pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ? "filter" :
  317.                pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ? "source" :
  318.                pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ? "mixer2" :
  319.                pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ? "mixer3" : "unknown");
  320.         return AVERROR(EINVAL);
  321.     }
  322.  
  323.     av_log(ctx, AV_LOG_VERBOSE,
  324.            "name:%s author:'%s' explanation:'%s' color_model:%s "
  325.            "frei0r_version:%d version:%d.%d num_params:%d\n",
  326.            pi->name, pi->author, pi->explanation,
  327.            pi->color_model == F0R_COLOR_MODEL_BGRA8888 ? "bgra8888" :
  328.            pi->color_model == F0R_COLOR_MODEL_RGBA8888 ? "rgba8888" :
  329.            pi->color_model == F0R_COLOR_MODEL_PACKED32 ? "packed32" : "unknown",
  330.            pi->frei0r_version, pi->major_version, pi->minor_version, pi->num_params);
  331.  
  332.     return 0;
  333. }
  334.  
  335. static av_cold int filter_init(AVFilterContext *ctx)
  336. {
  337.     Frei0rContext *s = ctx->priv;
  338.  
  339.     return frei0r_init(ctx, s->dl_name, F0R_PLUGIN_TYPE_FILTER);
  340. }
  341.  
  342. static av_cold void uninit(AVFilterContext *ctx)
  343. {
  344.     Frei0rContext *s = ctx->priv;
  345.  
  346.     if (s->destruct && s->instance)
  347.         s->destruct(s->instance);
  348.     if (s->deinit)
  349.         s->deinit();
  350.     if (s->dl_handle)
  351.         dlclose(s->dl_handle);
  352. }
  353.  
  354. static int config_input_props(AVFilterLink *inlink)
  355. {
  356.     AVFilterContext *ctx = inlink->dst;
  357.     Frei0rContext *s = ctx->priv;
  358.  
  359.     if (s->destruct && s->instance)
  360.         s->destruct(s->instance);
  361.     if (!(s->instance = s->construct(inlink->w, inlink->h))) {
  362.         av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance.\n");
  363.         return AVERROR(EINVAL);
  364.     }
  365.  
  366.     return set_params(ctx, s->params);
  367. }
  368.  
  369. static int query_formats(AVFilterContext *ctx)
  370. {
  371.     Frei0rContext *s = ctx->priv;
  372.     AVFilterFormats *formats = NULL;
  373.  
  374.     if        (s->plugin_info.color_model == F0R_COLOR_MODEL_BGRA8888) {
  375.         ff_add_format(&formats, AV_PIX_FMT_BGRA);
  376.     } else if (s->plugin_info.color_model == F0R_COLOR_MODEL_RGBA8888) {
  377.         ff_add_format(&formats, AV_PIX_FMT_RGBA);
  378.     } else {                                   /* F0R_COLOR_MODEL_PACKED32 */
  379.         static const enum AVPixelFormat pix_fmts[] = {
  380.             AV_PIX_FMT_BGRA, AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, AV_PIX_FMT_ARGB, AV_PIX_FMT_NONE
  381.         };
  382.         formats = ff_make_format_list(pix_fmts);
  383.     }
  384.  
  385.     if (!formats)
  386.         return AVERROR(ENOMEM);
  387.  
  388.     return ff_set_common_formats(ctx, formats);
  389. }
  390.  
  391. static int filter_frame(AVFilterLink *inlink, AVFrame *in)
  392. {
  393.     Frei0rContext *s = inlink->dst->priv;
  394.     AVFilterLink *outlink = inlink->dst->outputs[0];
  395.     AVFrame *out;
  396.  
  397.     out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
  398.     if (!out) {
  399.         av_frame_free(&in);
  400.         return AVERROR(ENOMEM);
  401.     }
  402.     av_frame_copy_props(out, in);
  403.  
  404.     s->update(s->instance, in->pts * av_q2d(inlink->time_base) * 1000,
  405.                    (const uint32_t *)in->data[0],
  406.                    (uint32_t *)out->data[0]);
  407.  
  408.     av_frame_free(&in);
  409.  
  410.     return ff_filter_frame(outlink, out);
  411. }
  412.  
  413. #define OFFSET(x) offsetof(Frei0rContext, x)
  414. #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
  415. static const AVOption frei0r_options[] = {
  416.     { "filter_name",   NULL, OFFSET(dl_name), AV_OPT_TYPE_STRING, .flags = FLAGS },
  417.     { "filter_params", NULL, OFFSET(params),  AV_OPT_TYPE_STRING, .flags = FLAGS },
  418.     { NULL }
  419. };
  420.  
  421. AVFILTER_DEFINE_CLASS(frei0r);
  422.  
  423. static const AVFilterPad avfilter_vf_frei0r_inputs[] = {
  424.     {
  425.         .name         = "default",
  426.         .type         = AVMEDIA_TYPE_VIDEO,
  427.         .config_props = config_input_props,
  428.         .filter_frame = filter_frame,
  429.     },
  430.     { NULL }
  431. };
  432.  
  433. static const AVFilterPad avfilter_vf_frei0r_outputs[] = {
  434.     {
  435.         .name = "default",
  436.         .type = AVMEDIA_TYPE_VIDEO,
  437.     },
  438.     { NULL }
  439. };
  440.  
  441. AVFilter ff_vf_frei0r = {
  442.     .name          = "frei0r",
  443.     .description   = NULL_IF_CONFIG_SMALL("Apply a frei0r effect."),
  444.     .query_formats = query_formats,
  445.     .init          = filter_init,
  446.     .uninit        = uninit,
  447.     .priv_size     = sizeof(Frei0rContext),
  448.     .priv_class    = &frei0r_class,
  449.     .inputs        = avfilter_vf_frei0r_inputs,
  450.     .outputs       = avfilter_vf_frei0r_outputs,
  451. };
  452.  
  453. static av_cold int source_init(AVFilterContext *ctx)
  454. {
  455.     Frei0rContext *s = ctx->priv;
  456.  
  457.     s->time_base.num = s->framerate.den;
  458.     s->time_base.den = s->framerate.num;
  459.  
  460.     return frei0r_init(ctx, s->dl_name, F0R_PLUGIN_TYPE_SOURCE);
  461. }
  462.  
  463. static int source_config_props(AVFilterLink *outlink)
  464. {
  465.     AVFilterContext *ctx = outlink->src;
  466.     Frei0rContext *s = ctx->priv;
  467.  
  468.     if (av_image_check_size(s->w, s->h, 0, ctx) < 0)
  469.         return AVERROR(EINVAL);
  470.     outlink->w = s->w;
  471.     outlink->h = s->h;
  472.     outlink->time_base = s->time_base;
  473.     outlink->frame_rate = av_inv_q(s->time_base);
  474.     outlink->sample_aspect_ratio = (AVRational){1,1};
  475.  
  476.     if (s->destruct && s->instance)
  477.         s->destruct(s->instance);
  478.     if (!(s->instance = s->construct(outlink->w, outlink->h))) {
  479.         av_log(ctx, AV_LOG_ERROR, "Impossible to load frei0r instance.\n");
  480.         return AVERROR(EINVAL);
  481.     }
  482.     if (!s->params) {
  483.         av_log(ctx, AV_LOG_ERROR, "frei0r filter parameters not set.\n");
  484.         return AVERROR(EINVAL);
  485.     }
  486.  
  487.     return set_params(ctx, s->params);
  488. }
  489.  
  490. static int source_request_frame(AVFilterLink *outlink)
  491. {
  492.     Frei0rContext *s = outlink->src->priv;
  493.     AVFrame *frame = ff_get_video_buffer(outlink, outlink->w, outlink->h);
  494.  
  495.     if (!frame)
  496.         return AVERROR(ENOMEM);
  497.  
  498.     frame->sample_aspect_ratio = (AVRational) {1, 1};
  499.     frame->pts = s->pts++;
  500.  
  501.     s->update(s->instance, av_rescale_q(frame->pts, s->time_base, (AVRational){1,1000}),
  502.                    NULL, (uint32_t *)frame->data[0]);
  503.  
  504.     return ff_filter_frame(outlink, frame);
  505. }
  506.  
  507. static const AVOption frei0r_src_options[] = {
  508.     { "size",          "Dimensions of the generated video.", OFFSET(w),         AV_OPT_TYPE_IMAGE_SIZE, { .str = "320x240" }, .flags = FLAGS },
  509.     { "framerate",     NULL,                                 OFFSET(framerate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, .flags = FLAGS },
  510.     { "filter_name",   NULL,                                 OFFSET(dl_name),   AV_OPT_TYPE_STRING,                  .flags = FLAGS },
  511.     { "filter_params", NULL,                                 OFFSET(params),    AV_OPT_TYPE_STRING,                  .flags = FLAGS },
  512.     { NULL },
  513. };
  514.  
  515. AVFILTER_DEFINE_CLASS(frei0r_src);
  516.  
  517. static const AVFilterPad avfilter_vsrc_frei0r_src_outputs[] = {
  518.     {
  519.         .name          = "default",
  520.         .type          = AVMEDIA_TYPE_VIDEO,
  521.         .request_frame = source_request_frame,
  522.         .config_props  = source_config_props
  523.     },
  524.     { NULL }
  525. };
  526.  
  527. AVFilter ff_vsrc_frei0r_src = {
  528.     .name          = "frei0r_src",
  529.     .description   = NULL_IF_CONFIG_SMALL("Generate a frei0r source."),
  530.     .priv_size     = sizeof(Frei0rContext),
  531.     .priv_class    = &frei0r_src_class,
  532.     .init          = source_init,
  533.     .uninit        = uninit,
  534.     .query_formats = query_formats,
  535.     .inputs        = NULL,
  536.     .outputs       = avfilter_vsrc_frei0r_src_outputs,
  537. };
  538.