#include "libavutil/avstring.h"
#include "libavutil/eval.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "drawutils.h"
#include "internal.h"
#include "video.h"
Go to the source code of this file.
Data Structures | |
| struct | FadeContext |
Defines | |
| #define | R 0 |
| #define | G 1 |
| #define | B 2 |
| #define | A 3 |
| #define | Y 0 |
| #define | U 1 |
| #define | V 2 |
| #define | OFFSET(x) offsetof(FadeContext, x) |
Functions | |
| static const char * | fade_get_name (void *ctx) |
| static av_cold int | init (AVFilterContext *ctx, const char *args, void *opaque) |
| static av_cold void | uninit (AVFilterContext *ctx) |
| static int | query_formats (AVFilterContext *ctx) |
| static int | config_props (AVFilterLink *inlink) |
| static void | fade_plane (int y, int h, int w, int fade_factor, int black_level, int black_level_scaled, uint8_t offset, uint8_t step, int bytes_per_plane, uint8_t *data, int line_size) |
| static void | draw_slice (AVFilterLink *inlink, int y, int h, int slice_dir) |
| static void | end_frame (AVFilterLink *inlink) |
Variables | |
| static const AVOption | fade_options [] |
| static const AVClass | fade_class |
| static const enum PixelFormat | studio_level_pix_fmts [] |
| static enum PixelFormat | alpha_pix_fmts [] |
| AVFilter | avfilter_vf_fade |
Definition in file vf_fade.c.
| #define OFFSET | ( | x | ) | offsetof(FadeContext, x) |
| static int config_props | ( | AVFilterLink * | inlink | ) | [static] |
| static void draw_slice | ( | AVFilterLink * | inlink, | |
| int | y, | |||
| int | h, | |||
| int | slice_dir | |||
| ) | [static] |
| static void end_frame | ( | AVFilterLink * | inlink | ) | [static] |
| static av_cold int init | ( | AVFilterContext * | ctx, | |
| const char * | args, | |||
| void * | opaque | |||
| ) | [static] |
| static int query_formats | ( | AVFilterContext * | ctx | ) | [static] |
| static av_cold void uninit | ( | AVFilterContext * | ctx | ) | [static] |
enum PixelFormat alpha_pix_fmts[] [static] |
Initial value:
Definition at line 177 of file vf_fade.c.
Referenced by config_input_main(), config_input_overlay(), and config_props().
Initial value:
{
.name = "fade",
.description = NULL_IF_CONFIG_SMALL("Fade in/out input video."),
.init = init,
.uninit = uninit,
.priv_size = sizeof(FadeContext),
.query_formats = query_formats,
.inputs = (const AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_props,
.get_video_buffer = ff_null_get_video_buffer,
.start_frame = ff_null_start_frame,
.draw_slice = draw_slice,
.end_frame = end_frame,
.min_perms = AV_PERM_READ | AV_PERM_WRITE,
.rej_perms = AV_PERM_PRESERVE, },
{ .name = NULL}},
.outputs = (const AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO, },
{ .name = NULL}},
}
const AVClass fade_class [static] |
Initial value:
{
"FadeContext",
fade_get_name,
fade_options
}
const AVOption fade_options[] [static] |
Initial value:
{
{ "type", "set the fade direction", OFFSET(type), AV_OPT_TYPE_STRING, {.str = "in" }, CHAR_MIN, CHAR_MAX },
{ "t", "set the fade direction", OFFSET(type), AV_OPT_TYPE_STRING, {.str = "in" }, CHAR_MIN, CHAR_MAX },
{ "start_frame", "set expression of frame to start fading", OFFSET(start_frame), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX },
{ "s", "set expression of frame to start fading", OFFSET(start_frame), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, INT_MAX },
{ "nb_frames", "set expression for fade duration in frames", OFFSET(nb_frames), AV_OPT_TYPE_INT, {.dbl = 25 }, 0, INT_MAX },
{ "n", "set expression for fade duration in frames", OFFSET(nb_frames), AV_OPT_TYPE_INT, {.dbl = 25 }, 0, INT_MAX },
{ "alpha", "fade alpha if it is available on the input", OFFSET(alpha), AV_OPT_TYPE_INT, {.dbl = 0 }, 0, 1 },
{NULL},
}
const enum PixelFormat studio_level_pix_fmts[] [static] |
Initial value:
{
PIX_FMT_YUV444P, PIX_FMT_YUV422P, PIX_FMT_YUV420P,
PIX_FMT_YUV411P, PIX_FMT_YUV410P,
PIX_FMT_YUV440P,
PIX_FMT_NONE
}
Definition at line 170 of file vf_fade.c.
Referenced by config_props().
1.5.8