#include "libavutil/file.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/lfg.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include "libavutil/random_seed.h"
#include "avfilter.h"
Go to the source code of this file.
Data Structures | |
| struct | LifeContext |
Defines | |
| #define | ALIVE_CELL 0xFF |
| #define | OFFSET(x) offsetof(LifeContext, x) |
| #define | PARSE_COLOR(name) |
| #define | FAST_DIV255(x) ((((x) + 128) * 257) >> 16) |
Functions | |
| static const char * | life_get_name (void *ctx) |
| static int | parse_rule (uint16_t *born_rule, uint16_t *stay_rule, const char *rule_str, void *log_ctx) |
| static int | init_pattern_from_file (AVFilterContext *ctx) |
| static int | init (AVFilterContext *ctx, const char *args, void *opaque) |
| static av_cold void | uninit (AVFilterContext *ctx) |
| static int | config_props (AVFilterLink *outlink) |
| static void | evolve (AVFilterContext *ctx) |
| static void | fill_picture_monoblack (AVFilterContext *ctx, AVFilterBufferRef *picref) |
| static void | fill_picture_rgb (AVFilterContext *ctx, AVFilterBufferRef *picref) |
| static int | request_frame (AVFilterLink *outlink) |
| static int | query_formats (AVFilterContext *ctx) |
Variables | |
| static const AVOption | life_options [] |
| static const AVClass | life_class |
| AVFilter | avfilter_vsrc_life |
Definition in file vsrc_life.c.
| #define ALIVE_CELL 0xFF |
Definition at line 76 of file vsrc_life.c.
Referenced by evolve(), fill_picture_monoblack(), fill_picture_rgb(), init(), and init_pattern_from_file().
| #define FAST_DIV255 | ( | x | ) | ((((x) + 128) * 257) >> 16) |
Definition at line 411 of file vsrc_life.c.
| #define OFFSET | ( | x | ) | offsetof(LifeContext, x) |
Definition at line 77 of file vsrc_life.c.
| #define PARSE_COLOR | ( | name | ) |
Value:
do { \ if ((ret = av_parse_color(life->name ## _color, life->name ## _color_str, -1, ctx))) { \ av_log(ctx, AV_LOG_ERROR, "Invalid " #name " color '%s'\n", \ life->name ## _color_str); \ return ret; \ } \ } while (0)
Referenced by init().
| static int config_props | ( | AVFilterLink * | outlink | ) | [static] |
Definition at line 322 of file vsrc_life.c.
| static void evolve | ( | AVFilterContext * | ctx | ) | [static] |
Definition at line 333 of file vsrc_life.c.
| static void fill_picture_monoblack | ( | AVFilterContext * | ctx, | |
| AVFilterBufferRef * | picref | |||
| ) | [static] |
| static void fill_picture_rgb | ( | AVFilterContext * | ctx, | |
| AVFilterBufferRef * | picref | |||
| ) | [static] |
| static int init | ( | AVFilterContext * | ctx, | |
| const char * | args, | |||
| void * | opaque | |||
| ) | [static] |
Definition at line 228 of file vsrc_life.c.
| static int init_pattern_from_file | ( | AVFilterContext * | ctx | ) | [static] |
Definition at line 171 of file vsrc_life.c.
| static const char* life_get_name | ( | void * | ctx | ) | [static] |
Definition at line 99 of file vsrc_life.c.
| static int parse_rule | ( | uint16_t * | born_rule, | |
| uint16_t * | stay_rule, | |||
| const char * | rule_str, | |||
| void * | log_ctx | |||
| ) | [static] |
| static int query_formats | ( | AVFilterContext * | ctx | ) | [static] |
Definition at line 462 of file vsrc_life.c.
| static int request_frame | ( | AVFilterLink * | outlink | ) | [static] |
Definition at line 440 of file vsrc_life.c.
| static av_cold void uninit | ( | AVFilterContext * | ctx | ) | [static] |
Definition at line 312 of file vsrc_life.c.
Initial value:
{
.name = "life",
.description = NULL_IF_CONFIG_SMALL("Create life."),
.priv_size = sizeof(LifeContext),
.init = init,
.uninit = uninit,
.query_formats = query_formats,
.inputs = (const AVFilterPad[]) {
{ .name = NULL}
},
.outputs = (const AVFilterPad[]) {
{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.request_frame = request_frame,
.config_props = config_props },
{ .name = NULL}
},
}
Definition at line 478 of file vsrc_life.c.
const AVClass life_class [static] |
Initial value:
{
"LifeContext",
life_get_name,
life_options
}
Definition at line 104 of file vsrc_life.c.
const AVOption life_options[] [static] |
Initial value:
{
{ "filename", "set source file", OFFSET(filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
{ "f", "set source file", OFFSET(filename), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
{ "size", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
{ "s", "set video size", OFFSET(size), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0 },
{ "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 },
{ "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0 },
{ "rule", "set rule", OFFSET(rule_str), AV_OPT_TYPE_STRING, {.str = "B3/S23"}, CHAR_MIN, CHAR_MAX },
{ "random_fill_ratio", "set fill ratio for filling initial grid randomly", OFFSET(random_fill_ratio), AV_OPT_TYPE_DOUBLE, {.dbl=1/M_PHI}, 0, 1 },
{ "ratio", "set fill ratio for filling initial grid randomly", OFFSET(random_fill_ratio), AV_OPT_TYPE_DOUBLE, {.dbl=1/M_PHI}, 0, 1 },
{ "random_seed", "set the seed for filling the initial grid randomly", OFFSET(random_seed), AV_OPT_TYPE_INT, {.dbl=-1}, -1, UINT32_MAX },
{ "seed", "set the seed for filling the initial grid randomly", OFFSET(random_seed), AV_OPT_TYPE_INT, {.dbl=-1}, -1, UINT32_MAX },
{ "stitch", "stitch boundaries", OFFSET(stitch), AV_OPT_TYPE_INT, {.dbl=1}, 0, 1 },
{ "mold", "set mold speed for dead cells", OFFSET(mold), AV_OPT_TYPE_INT, {.dbl=0}, 0, 0xFF },
{ "life_color", "set life color", OFFSET( life_color_str), AV_OPT_TYPE_STRING, {.str="white"}, CHAR_MIN, CHAR_MAX },
{ "death_color", "set death color", OFFSET(death_color_str), AV_OPT_TYPE_STRING, {.str="black"}, CHAR_MIN, CHAR_MAX },
{ "mold_color", "set mold color", OFFSET( mold_color_str), AV_OPT_TYPE_STRING, {.str="black"}, CHAR_MIN, CHAR_MAX },
{ NULL },
}
Definition at line 79 of file vsrc_life.c.
1.5.8