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/**
* @file omx/module.c Raspberry Pi VideoCoreIV OpenMAX interface
*
* Copyright (C) 2016 - 2017 Creytiv.com
* Copyright (C) 2016 - 2017 Jonathan Sieber
*/
#include "omx.h"
#include <stdlib.h>
#include <re.h>
#include <rem.h>
#include <baresip.h>
struct vidisp_st {
const struct vidisp *vd; /* inheritance */
struct vidsz size;
struct omx_state* omx;
};
static struct vidisp* vid;
static struct omx_state omx;
static void destructor(void *arg)
{
struct vidisp_st *st = arg;
omx_display_disable(st->omx);
}
static int omx_vidisp_alloc(struct vidisp_st **vp, const struct vidisp *vd,
struct vidisp_prm *prm, const char *dev,
vidisp_resize_h *resizeh, void *arg)
{
struct vidisp_st *st;
/* Not used by OMX */
(void) prm;
(void) dev;
(void) resizeh;
(void) arg;
info("omx: vidisp_alloc\n");
st = mem_zalloc(sizeof(*st), destructor);
if (!st)
return ENOMEM;
st->vd = vd;
*vp = st;
st->omx = &omx;
return 0;
}
static int omx_vidisp_display(struct vidisp_st *st, const char *title,
const struct vidframe *frame, uint64_t timestamp)
{
int err = 0;
void* buf;
uint32_t len;
struct vidframe omx_frame;
(void)title;
(void)timestamp;
if (frame->fmt != VID_FMT_YUV420P) {
return EINVAL;
}
if (!vidsz_cmp(&st->size, &frame->size)) {
info("omx: new frame size: w=%d h=%d\n",
frame->size.w, frame->size.h);
info("omx: linesize[0]=%d\tlinesize[1]=%d\tlinesize[2]=%d\n",
frame->linesize[0], frame->linesize[1],
frame->linesize[2]);
err = omx_display_enable(st->omx,
frame->size.w, frame->size.h, frame->size.w);
if (err) {
warning("omx_display_enable failed");
return err;
}
st->size = frame->size;
}
/* Get Buffer Pointer */
omx_display_input_buffer(st->omx, &buf, &len);
vidframe_init_buf(&omx_frame, VID_FMT_YUV420P, &frame->size,
buf);
vidconv(&omx_frame, frame, 0);
omx_display_flush_buffer(st->omx);
return 0;
}
static int module_init(void)
{
if (omx_init(&omx) != 0) {
warning("Could not initialize OpenMAX");
return ENODEV;
}
return vidisp_register(&vid, baresip_vidispl(), "omx",
omx_vidisp_alloc, NULL, omx_vidisp_display, NULL);
}
static int module_close(void)
{
/* HACK: not deinitializing OMX because of a hangup */
/* omx_deinit(&omx) */
vid = mem_deref(vid);
return 0;
}
EXPORT_SYM const struct mod_export DECL_EXPORTS(omx) = {
"omx",
"vidisp",
module_init,
module_close
};
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