C++ (Cpp) ivtv_s_std_dec示例

示例#1

文件： ivtv-firmware.c 项目： AdrianHuang/linux-3.8.13

/* Try to restart the card & restore previous settings */
static int ivtv_firmware_restart(struct ivtv *itv)
{
	int rc = 0;
	v4l2_std_id std;

	if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)
		/* Display test image during restart */
		ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_routing,
		    SAA7127_INPUT_TYPE_TEST_IMAGE,
		    itv->card->video_outputs[itv->active_output].video_output,
		    0);

	mutex_lock(&itv->udma.lock);

	rc = ivtv_firmware_init(itv);
	if (rc) {
		mutex_unlock(&itv->udma.lock);
		return rc;
	}

	/* Allow settings to reload */
	ivtv_mailbox_cache_invalidate(itv);

	/* Restore encoder video standard */
	std = itv->std;
	itv->std = 0;
	ivtv_s_std_enc(itv, &std);

	if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
		ivtv_init_mpeg_decoder(itv);

		/* Restore decoder video standard */
		std = itv->std_out;
		itv->std_out = 0;
		ivtv_s_std_dec(itv, &std);

		/* Restore framebuffer if active */
		if (itv->ivtvfb_restore)
			itv->ivtvfb_restore(itv);

		/* Restore alpha settings */
		ivtv_set_osd_alpha(itv);

		/* Restore normal output */
		ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_routing,
		    SAA7127_INPUT_TYPE_NORMAL,
		    itv->card->video_outputs[itv->active_output].video_output,
		    0);
	}

	mutex_unlock(&itv->udma.lock);
	return rc;
}

示例#2

文件： ivtv-firmware.c 项目： romanbb/android_kernel_lge_d851

int ivtv_firmware_restart(struct ivtv *itv)
{
	int rc = 0;
	v4l2_std_id std;

	if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)
		/*                                   */
		ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_routing,
		    SAA7127_INPUT_TYPE_TEST_IMAGE,
		    itv->card->video_outputs[itv->active_output].video_output,
		    0);

	mutex_lock(&itv->udma.lock);

	rc = ivtv_firmware_init(itv);
	if (rc) {
		mutex_unlock(&itv->udma.lock);
		return rc;
	}

	/*                          */
	ivtv_mailbox_cache_invalidate(itv);

	/*                                */
	std = itv->std;
	itv->std = 0;
	ivtv_s_std_enc(itv, &std);

	if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
		ivtv_init_mpeg_decoder(itv);

		/*                                */
		std = itv->std_out;
		itv->std_out = 0;
		ivtv_s_std_dec(itv, &std);

		/*                               */
		if (itv->ivtvfb_restore)
			itv->ivtvfb_restore(itv);

		/*                        */
		ivtv_set_osd_alpha(itv);

		/*                       */
		ivtv_call_hw(itv, IVTV_HW_SAA7127, video, s_routing,
		    SAA7127_INPUT_TYPE_NORMAL,
		    itv->card->video_outputs[itv->active_output].video_output,
		    0);
	}

	mutex_unlock(&itv->udma.lock);
	return rc;
}