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Change registered filter list to a linked list

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Commited in SoC by Bobby Bingham on 2007-08-17 23:24:32

Originally committed as revision 12013 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-02-15 21:38:20 +00:00
parent e675dccdc0
commit 6d8c67a778
1 changed files with 22 additions and 20 deletions
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42
libavfilter/avfilter.c
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@ -27,9 +27,12 @@
#include "avfilter.h"
#include "allfilters.h"
/** list of registered filters, sorted by name */
static int filter_count = 0;
static AVFilter **filters = NULL;
/** list of registered filters */
struct FilterList
{
AVFilter *filter;
struct FilterList *next;
} *filters = NULL;
/** helper macros to get the in/out pad on the dst/src filter */
#define link_dpad(link) link->dst-> input_pads[link->dstpad]
@ -239,30 +242,25 @@ void avfilter_draw_slice(AVFilterLink *link, int y, int h)
link_dpad(link).draw_slice(link, y, h);
}
static int filter_cmp(const void *aa, const void *bb)
{
const AVFilter *a = *(const AVFilter **)aa, *b = *(const AVFilter **)bb;
return strcmp(a->name, b->name);
}
AVFilter *avfilter_get_by_name(char *name)
{
AVFilter key = { .name = name, };
AVFilter *key2 = &key;
AVFilter **ret;
struct FilterList *filt;
for(filt = filters; filt; filt = filt->next)
if(!strcmp(filt->filter->name, name))
return filt->filter;
ret = bsearch(&key2, filters, filter_count, sizeof(AVFilter **), filter_cmp);
if(ret)
return *ret;
return NULL;
}
/* FIXME: insert in order, rather than insert at end + resort */
void avfilter_register(AVFilter *filter)
{
filters = av_realloc(filters, sizeof(AVFilter*) * (filter_count+1));
filters[filter_count] = filter;
qsort(filters, ++filter_count, sizeof(AVFilter **), filter_cmp);
struct FilterList *newfilt = av_malloc(sizeof(struct FilterList));
newfilt->filter = filter;
newfilt->next = filters;
filters = newfilt;
}
void avfilter_init(void)
@ -283,8 +281,12 @@ void avfilter_init(void)
void avfilter_uninit(void)
{
av_freep(&filters);
filter_count = 0;
struct FilterList *tmp;
for(; filters; filters = tmp) {
tmp = filters->next;
av_free(filters);
}
}
static int pad_count(const AVFilterPad *pads)