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52 typedef void (*
f0r_update_f)(f0r_instance_t instance,
double time,
const uint32_t *inframe, uint32_t *outframe);
53 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);
84 void *sym = dlsym(
s->dl_handle, sym_name);
95 f0r_param_color_t col;
96 f0r_param_position_t
pos;
104 if (!strcmp(param,
"y"))
val.d = 1.0;
105 else if (!strcmp(param,
"n"))
val.d = 0.0;
109 case F0R_PARAM_DOUBLE:
111 if (*tail ||
val.d == HUGE_VAL)
115 case F0R_PARAM_COLOR:
116 if (sscanf(param,
"%f/%f/%f", &
val.col.r, &
val.col.g, &
val.col.b) != 3) {
119 val.col.r = rgba[0] / 255.0;
120 val.col.g = rgba[1] / 255.0;
121 val.col.b = rgba[2] / 255.0;
125 case F0R_PARAM_POSITION:
126 if (sscanf(param,
"%lf/%lf", &
val.pos.x, &
val.pos.y) != 2)
130 case F0R_PARAM_STRING:
152 for (
i = 0;
i <
s->plugin_info.num_params;
i++) {
153 f0r_param_info_t
info;
157 s->get_param_info(&
info,
i);
180 *handle_ptr = dlopen(path, RTLD_NOW|RTLD_LOCAL);
186 const char *dl_name,
int type)
191 f0r_plugin_info_t *pi;
195 static const char*
const frei0r_pathlist[] = {
196 "/usr/local/lib/frei0r-1/",
197 "/usr/lib/frei0r-1/",
198 "/usr/local/lib64/frei0r-1/",
199 "/usr/lib64/frei0r-1/"
210 const char *separator =
";";
212 const char *separator =
":";
214 char *p, *ptr =
NULL;
215 for (p = path; p =
av_strtok(p, separator, &ptr); p =
NULL) {
236 char *prefix =
av_asprintf(
"%s/.frei0r-1/lib/", path);
260 !(f0r_get_plugin_info =
load_sym(
ctx,
"f0r_get_plugin_info")) ||
261 !(
s->get_param_info =
load_sym(
ctx,
"f0r_get_param_info" )) ||
262 !(
s->get_param_value =
load_sym(
ctx,
"f0r_get_param_value")) ||
263 !(
s->set_param_value =
load_sym(
ctx,
"f0r_set_param_value")) ||
270 if (f0r_init() < 0) {
275 f0r_get_plugin_info(&
s->plugin_info);
276 pi = &
s->plugin_info;
277 if (pi->plugin_type !=
type) {
279 "Invalid type '%s' for this plugin\n",
280 pi->plugin_type == F0R_PLUGIN_TYPE_FILTER ?
"filter" :
281 pi->plugin_type == F0R_PLUGIN_TYPE_SOURCE ?
"source" :
282 pi->plugin_type == F0R_PLUGIN_TYPE_MIXER2 ?
"mixer2" :
283 pi->plugin_type == F0R_PLUGIN_TYPE_MIXER3 ?
"mixer3" :
"unknown");
288 "name:%s author:'%s' explanation:'%s' color_model:%s "
289 "frei0r_version:%d version:%d.%d num_params:%d\n",
290 pi->name, pi->author, pi->explanation,
291 pi->color_model == F0R_COLOR_MODEL_BGRA8888 ?
"bgra8888" :
292 pi->color_model == F0R_COLOR_MODEL_RGBA8888 ?
"rgba8888" :
293 pi->color_model == F0R_COLOR_MODEL_PACKED32 ?
"packed32" :
"unknown",
294 pi->frei0r_version, pi->major_version, pi->minor_version, pi->num_params);
310 if (
s->destruct &&
s->instance)
311 s->destruct(
s->instance);
315 dlclose(
s->dl_handle);
323 if (
s->destruct &&
s->instance)
324 s->destruct(
s->instance);
341 if (
s->plugin_info.color_model == F0R_COLOR_MODEL_BGRA8888) {
344 }
else if (
s->plugin_info.color_model == F0R_COLOR_MODEL_RGBA8888) {
383 (
const uint32_t *)in->
data[0],
384 (uint32_t *)
out->data[0]);
396 char *res,
int res_len,
int flags)
408 #define OFFSET(x) offsetof(Frei0rContext, x)
409 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
410 #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
434 .priv_class = &frei0r_class,
446 s->time_base.num =
s->framerate.den;
447 s->time_base.den =
s->framerate.num;
466 if (
s->destruct &&
s->instance)
467 s->destruct(
s->instance);
468 if (!(
s->instance =
s->construct(outlink->
w, outlink->
h))) {
518 .
name =
"frei0r_src",
521 .priv_class = &frei0r_src_class,
AVFrame * ff_default_get_video_buffer2(AVFilterLink *link, int w, int h, int align)
static void * load_sym(AVFilterContext *ctx, const char *sym_name)
AVPixelFormat
Pixel format.
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf default minimum maximum flags name is the option name
void(* f0r_set_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index)
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
Send a frame of data to the next filter.
int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen, void *log_ctx)
Put the RGBA values that correspond to color_string in rgba_color.
@ AV_OPT_TYPE_VIDEO_RATE
Underlying C type is AVRational.
The exact code depends on how similar the blocks are and how related they are to the and needs to apply these operations to the correct inlink or outlink if there are several Macros are available to factor that when no extra processing is inlink
char * av_asprintf(const char *fmt,...)
static av_cold void uninit(AVFilterContext *ctx)
static int set_params(AVFilterContext *ctx, const char *params)
AVFILTER_DEFINE_CLASS(frei0r)
static av_cold int source_init(AVFilterContext *ctx)
void av_frame_free(AVFrame **frame)
Free the frame and any dynamically allocated objects in it, e.g.
#define FILTER_INPUTS(array)
This structure describes decoded (raw) audio or video data.
int64_t pts
Presentation timestamp in time_base units (time when frame should be shown to user).
void(* f0r_get_param_value_f)(f0r_instance_t instance, f0r_param_t param, int param_index)
#define AV_LOG_VERBOSE
Detailed information.
static void freeenv_utf8(char *var)
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
const char * name
Filter name.
A link between two filters.
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Link properties exposed to filter code, but not external callers.
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)
void * priv
private data for use by the filter
static int source_request_frame(AVFilterLink *outlink)
f0r_plugin_info_t plugin_info
static double val(void *priv, double ch)
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
static av_cold int frei0r_init(AVFilterContext *ctx, const char *dl_name, int type)
f0r_instance_t(* f0r_construct_f)(unsigned int width, unsigned int height)
static int set_param(AVFilterContext *ctx, f0r_param_info_t info, int index, char *param)
A filter pad used for either input or output.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define FF_ARRAY_ELEMS(a)
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
const AVFilter ff_vf_frei0r
static int source_config_props(AVFilterLink *outlink)
static double av_q2d(AVRational a)
Convert an AVRational to a double.
char * av_strtok(char *s, const char *delim, char **saveptr)
Split the string into several tokens which can be accessed by successive calls to av_strtok().
AVRational sample_aspect_ratio
agreed upon sample aspect ratio
f0r_get_param_info_f get_param_info
static enum AVPixelFormat pix_fmts[]
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
f0r_get_param_value_f get_param_value
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
static int config_input_props(AVFilterLink *inlink)
#define FILTER_OUTPUTS(array)
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Describe the class of an AVClass context structure.
int av_frame_copy_props(AVFrame *dst, const AVFrame *src)
Copy only "metadata" fields from src to dst.
Rational number (pair of numerator and denominator).
@ AV_OPT_TYPE_IMAGE_SIZE
Underlying C type is two consecutive integers.
static char * getenv_utf8(const char *varname)
static av_cold int filter_init(AVFilterContext *ctx)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
static int query_formats(const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
static FilterLink * ff_filter_link(AVFilterLink *link)
int(* init)(AVBSFContext *ctx)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
int av_frame_copy(AVFrame *dst, const AVFrame *src)
Copy the frame data from src to dst.
void(* f0r_destruct_f)(f0r_instance_t instance)
static const AVOption frei0r_options[]
static int load_path(AVFilterContext *ctx, void **handle_ptr, const char *prefix, const char *name)
static char * getenv_dup(const char *varname)
AVFilterContext * src
source filter
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
#define i(width, name, range_min, range_max)
void(* f0r_get_param_info_f)(f0r_param_info_t *info, int param_index)
int w
agreed upon image width
#define FILTER_QUERY_FUNC2(func)
static av_always_inline AVRational av_inv_q(AVRational q)
Invert a rational.
const char * name
Pad name.
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a frame
double av_strtod(const char *numstr, char **tail)
Parse the string in numstr and return its value as a double.
f0r_construct_f construct
void(* f0r_get_plugin_info_f)(f0r_plugin_info_t *info)
int h
agreed upon image height
void(* f0r_deinit_f)(void)
char * av_get_token(const char **buf, const char *term)
Unescape the given string until a non escaped terminating char, and return the token corresponding to...
const AVFilter ff_vsrc_frei0r_src
AVRational time_base
Define the time base used by the PTS of the frames/samples which will pass through this link.
void(* f0r_update_f)(f0r_instance_t instance, double time, const uint32_t *inframe, uint32_t *outframe)
static const AVFilterPad avfilter_vsrc_frei0r_src_outputs[]
#define flags(name, subs,...)
int linesize[AV_NUM_DATA_POINTERS]
For video, a positive or negative value, which is typically indicating the size in bytes of each pict...
f0r_set_param_value_f set_param_value
static const AVFilterPad avfilter_vf_frei0r_inputs[]
AVRational frame_rate
Frame rate of the stream on the link, or 1/0 if unknown or variable.
int av_image_check_size(unsigned int w, unsigned int h, int log_offset, void *log_ctx)
Check if the given dimension of an image is valid, meaning that all bytes of the image can be address...
@ AV_OPT_TYPE_STRING
Underlying C type is a uint8_t* that is either NULL or points to a C string allocated with the av_mal...
static const AVOption frei0r_src_options[]