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/**
* @file vidsrc.c Video Source
*
* Copyright (C) 2010 Creytiv.com
*/
#include <re.h>
#include <baresip.h>
#include "core.h"
/** Video Source state */
struct vidsrc_st {
struct vidsrc *vs; /**< Video Source */
};
static void destructor(void *arg)
{
struct vidsrc *vs = arg;
list_unlink(&vs->le);
}
/**
* Register a Video Source
*
* @param vsp Pointer to allocated Video Source
* @param vidsrcl List of Video Sources
* @param name Name of Video Source
* @param alloch Allocation handler
* @param updateh Update handler
*
* @return 0 if success, otherwise errorcode
*/
int vidsrc_register(struct vidsrc **vsp, struct list *vidsrcl,
const char *name,
vidsrc_alloc_h *alloch, vidsrc_update_h *updateh)
{
struct vidsrc *vs;
if (!vsp || !vidsrcl)
return EINVAL;
vs = mem_zalloc(sizeof(*vs), destructor);
if (!vs)
return ENOMEM;
list_append(vidsrcl, &vs->le, vs);
vs->name = name;
vs->alloch = alloch;
vs->updateh = updateh;
info("vidsrc: %s\n", name);
*vsp = vs;
return 0;
}
/**
* Find a Video Source by name
*
* @param vidsrcl List of Video Sources
* @param name Name of the Video Source to find
*
* @return Matching Video Source if found, otherwise NULL
*/
const struct vidsrc *vidsrc_find(const struct list *vidsrcl, const char *name)
{
struct le *le;
for (le=list_head(vidsrcl); le; le=le->next) {
struct vidsrc *vs = le->data;
if (str_isset(name) && 0 != str_casecmp(name, vs->name))
continue;
return vs;
}
return NULL;
}
/**
* Allocate a new video source state
*
* @param stp Pointer to allocated state
* @param vidsrcl List of Video Sources
* @param name Name of the video source
* @param ctx Optional media context
* @param prm Video source parameters
* @param size Wanted video size of the source
* @param fmt Format parameter
* @param dev Video device
* @param frameh Video frame handler
* @param errorh Error handler (optional)
* @param arg Handler argument
*
* @return 0 if success, otherwise errorcode
*/
int vidsrc_alloc(struct vidsrc_st **stp, struct list *vidsrcl,
const char *name,
struct media_ctx **ctx, struct vidsrc_prm *prm,
const struct vidsz *size, const char *fmt, const char *dev,
vidsrc_frame_h *frameh, vidsrc_error_h *errorh, void *arg)
{
struct vidsrc *vs = (struct vidsrc *)vidsrc_find(vidsrcl, name);
if (!vs)
return ENOENT;
return vs->alloch(stp, vs, ctx, prm, size, fmt, dev,
frameh, errorh, arg);
}
struct vidsrc *vidsrc_get(struct vidsrc_st *st)
{
return st ? st->vs : NULL;
}
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