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/**
* @file vidinfo.c Video-info filter
*
* Copyright (C) 2010 - 2015 Creytiv.com
*/
#include <re.h>
#include <rem.h>
#include <baresip.h>
#include "vidinfo.h"
/**
* @defgroup vidinfo vidinfo
*
* Display video-info overlay on the encode/decode streams
*
* Displays info like framerate and packet timing, this is mainly
* for development and debugging.
*/
struct vidinfo_enc {
struct vidfilt_enc_st vf; /* base member (inheritance) */
struct panel *panel;
};
struct vidinfo_dec {
struct vidfilt_dec_st vf; /* base member (inheritance) */
struct panel *panel;
};
static void encode_destructor(void *arg)
{
struct vidinfo_enc *st = arg;
list_unlink(&st->vf.le);
mem_deref(st->panel);
}
static void decode_destructor(void *arg)
{
struct vidinfo_dec *st = arg;
list_unlink(&st->vf.le);
mem_deref(st->panel);
}
static int encode_update(struct vidfilt_enc_st **stp, void **ctx,
const struct vidfilt *vf)
{
struct vidinfo_enc *st;
int err = 0;
if (!stp || !ctx || !vf)
return EINVAL;
if (*stp)
return 0;
st = mem_zalloc(sizeof(*st), encode_destructor);
if (!st)
return ENOMEM;
if (err)
mem_deref(st);
else
*stp = (struct vidfilt_enc_st *)st;
return err;
}
static int decode_update(struct vidfilt_dec_st **stp, void **ctx,
const struct vidfilt *vf)
{
struct vidinfo_dec *st;
int err = 0;
if (!stp || !ctx || !vf)
return EINVAL;
if (*stp)
return 0;
st = mem_zalloc(sizeof(*st), decode_destructor);
if (!st)
return ENOMEM;
if (err)
mem_deref(st);
else
*stp = (struct vidfilt_dec_st *)st;
return err;
}
static int encode(struct vidfilt_enc_st *_st, struct vidframe *frame)
{
struct vidinfo_enc *st = (struct vidinfo_enc *)_st;
int err = 0;
if (!st->panel) {
unsigned width = frame->size.w;
unsigned height = MIN(PANEL_HEIGHT, frame->size.h);
err = panel_alloc(&st->panel, "encode", 0, width, height);
if (err)
return err;
}
panel_add_frame(st->panel, tmr_jiffies());
panel_draw(st->panel, frame);
return 0;
}
static int decode(struct vidfilt_dec_st *_st, struct vidframe *frame)
{
struct vidinfo_dec *st = (struct vidinfo_dec *)_st;
int err = 0;
if (!st->panel) {
unsigned width = frame->size.w;
unsigned height = MIN(PANEL_HEIGHT, frame->size.h);
unsigned yoffs = frame->size.h - PANEL_HEIGHT;
err = panel_alloc(&st->panel, "decode", yoffs, width, height);
if (err)
return err;
}
panel_add_frame(st->panel, tmr_jiffies());
panel_draw(st->panel, frame);
return 0;
}
static struct vidfilt vidinfo = {
LE_INIT, "vidinfo", encode_update, encode, decode_update, decode
};
static int module_init(void)
{
vidfilt_register(&vidinfo);
return 0;
}
static int module_close(void)
{
vidfilt_unregister(&vidinfo);
return 0;
}
EXPORT_SYM const struct mod_export DECL_EXPORTS(vidinfo) = {
"vidinfo",
"vidfilt",
module_init,
module_close
};
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