int jpeg_dec_vidioc_g_fmt(struct file *file, void *priv,
struct v4l2_format *f)
{
struct jpeg_ctx *ctx = priv;
struct v4l2_pix_format_mplane *pixm;
struct jpeg_dec_param *dec_param = &ctx->param.dec_param;
unsigned int width, height;
pixm = &f->fmt.pix_mp;
pixm->field = V4L2_FIELD_NONE;
if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
pixm->pixelformat = dec_param->in_fmt;
pixm->num_planes = dec_param->in_plane;
pixm->width = dec_param->in_width;
pixm->height = dec_param->in_height;
} else if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
jpeg_get_frame_size(ctx->dev->reg_base, &width, &height);
pixm->pixelformat =
dec_param->out_fmt;
pixm->num_planes = dec_param->out_plane;
pixm->width = width;
pixm->height = height;
} else {
v4l2_err(&ctx->dev->v4l2_dev,
"Wrong buffer/video queue type (%d)\n", f->type);
}
return 0;
}
int jpeg_exe_dec(struct jpeg_control *ctrl)
{
jpeg_start_decode(ctrl->reg_base);
if (interruptible_sleep_on_timeout(&ctrl->wq, INT_TIMEOUT) == 0)
jpeg_err("waiting for interrupt is timeout\n");
if (ctrl->irq_ret != OK_ENC_OR_DEC) {
jpeg_err("jpeg decode error(%d)\n", ctrl->irq_ret);
return -1;
}
jpeg_get_frame_size(ctrl->reg_base,
&ctrl->dec_param.width, &ctrl->dec_param.height);
ctrl->dec_param.in_fmt = jpeg_get_stream_fmt(ctrl->reg_base);
jpeg_info("decode img in_fmt(%d) width(%d) height(%d)\n",
ctrl->dec_param.in_fmt , ctrl->dec_param.width,
ctrl->dec_param.height);
return 0;
}