From 0edbb0f97b0b5136d16313e48ff5a79714abc0a7 Mon Sep 17 00:00:00 2001
From: Kamil Debski <k.debski@samsung.com>
Date: Mon, 23 Jun 2014 14:01:17 +0200
Subject: v4l2-mfc-example: Add support for disabling FIMC

The FIMC can now be disabled, so that only MFC can be tested by the
application.

Signed-off-by: Kamil Debski <k.debski@samsung.com>
---
 v4l2-mfc-example/args.c   |  7 ++++---
 v4l2-mfc-example/common.h |  1 +
 v4l2-mfc-example/main.c   | 44 +++++++++++++++++++++++++++-----------------
 3 files changed, 32 insertions(+), 20 deletions(-)

diff --git a/v4l2-mfc-example/args.c b/v4l2-mfc-example/args.c
index 2161285..0e9e89c 100644
--- a/v4l2-mfc-example/args.c
+++ b/v4l2-mfc-example/args.c
@@ -33,7 +33,7 @@ void print_usage(char *name)
 {
 	// "d:f:i:m:c:V"
 	printf("Usage:\n");
-	printf("\t./%s\n", name);
+	printf("\t%s\n", name);
 	printf("\t-c <codec> - The codec of the encoded stream\n");
 	printf("\t\t     Available codecs: mpeg4, h264\n");
 	printf("\t-d <device>  - Frame buffer device (e.g. /dev/fb0)\n");
@@ -85,6 +85,7 @@ int parse_args(struct instance *i, int argc, char **argv)
 			break;
 		case 'f':
 			i->fimc.name = optarg;
+			i->fimc.enabled = 1;
 			break;
 		case 'i':
 			i->in.name = optarg;
@@ -101,8 +102,8 @@ int parse_args(struct instance *i, int argc, char **argv)
 		}
 	}
 
-	if (!i->in.name || !i->fb.name || !i->fimc.name || !i->mfc.name) {
-		err("The following arguments are required: -d -f -i -m -c");
+	if (!i->in.name || !i->fb.name || !i->mfc.name) {
+		err("The following arguments are required: -d -i -m -c");
 		return -1;
 	}
 
diff --git a/v4l2-mfc-example/common.h b/v4l2-mfc-example/common.h
index f07c19a..3f55283 100644
--- a/v4l2-mfc-example/common.h
+++ b/v4l2-mfc-example/common.h
@@ -123,6 +123,7 @@ struct instance {
 		/* Semaphores are used to synchronise FIMC thread with
 		 * the MFC thread */
 		sem_t done;
+		char enabled;
 	} fimc;
 
 	/* MFC related parameters */
diff --git a/v4l2-mfc-example/main.c b/v4l2-mfc-example/main.c
index 78a0c62..fef0c8d 100644
--- a/v4l2-mfc-example/main.c
+++ b/v4l2-mfc-example/main.c
@@ -205,9 +205,11 @@ void *mfc_thread_func(void *args)
 		if (i->mfc.cap_buf_queued < i->mfc.cap_buf_cnt_min) {
 			/* sem_wait - wait until there is a buffer returned from
 			 * fimc */
-			dbg("Before fimc.done");
-			sem_wait(&i->fimc.done);
-			dbg("After fimc.done");
+			if (i->fimc.enabled) {
+				dbg("Before fimc.done");
+				sem_wait(&i->fimc.done);
+				dbg("After fimc.done");
+			}
 
 			n = 0;
 			while (n < i->mfc.cap_buf_cnt &&
@@ -237,9 +239,11 @@ void *mfc_thread_func(void *args)
 			if (n < i->mfc.cap_buf_cnt) {
 				/* sem_wait - we already found a buffer to queue
 				 * so no waiting */
-				dbg("Before fimc.done");
-				sem_wait(&i->fimc.done);
-				dbg("After fimc.done");
+				if (i->fimc.enabled) {
+					dbg("Before fimc.done");
+					sem_wait(&i->fimc.done);
+					dbg("After fimc.done");
+				}
 
 				/* Can queue a buffer */
 				mfc_dec_queue_buf_cap(i, n);
@@ -263,12 +267,17 @@ void *mfc_thread_func(void *args)
 				break;
 			}
 
-			/* Pass to the FIMC */
-			i->mfc.cap_buf_flag[n] = BUF_FIMC;
-			i->mfc.cap_buf_queued--;
-			queue_add(&i->fimc.queue, n);
+			if (i->fimc.enabled) {
+				/* Pass to the FIMC */
+				i->mfc.cap_buf_flag[n] = BUF_FIMC;
+				i->mfc.cap_buf_queued--;
 
-			sem_post(&i->fimc.todo);
+				queue_add(&i->fimc.queue, n);
+				sem_post(&i->fimc.todo);
+			} else {
+				i->mfc.cap_buf_flag[n] = BUF_FREE;
+				i->mfc.cap_buf_queued--;
+			}
 
 			continue;
 		}
@@ -404,7 +413,7 @@ int main(int argc, char **argv)
 		return 1;
 	}
 
-	if (fimc_open(&inst, inst.fimc.name)) {
+	if (inst.fimc.name && fimc_open(&inst, inst.fimc.name)) {
 		cleanup(&inst);
 		return 1;
 	}
@@ -439,17 +448,17 @@ int main(int argc, char **argv)
 		return 1;
 	}
 
-	if (fimc_setup_output_from_mfc(&inst)) {
+	if (inst.fimc.enabled && fimc_setup_output_from_mfc(&inst)) {
 		cleanup(&inst);
 		return 1;
 	}
 
-	if (fimc_setup_capture_from_fb(&inst)) {
+	if (inst.fimc.enabled && fimc_setup_capture_from_fb(&inst)) {
 		cleanup(&inst);
 		return 1;
 	}
 
-	if (fimc_set_crop(&inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
+	if (inst.fimc.enabled && fimc_set_crop(&inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE,
 		inst.mfc.cap_crop_w, inst.mfc.cap_crop_h,
 		inst.mfc.cap_crop_left, inst.mfc.cap_crop_top)) {
 		cleanup(&inst);
@@ -496,7 +505,7 @@ int main(int argc, char **argv)
 		return 1;
 	}
 
-	if (pthread_create(&fimc_thread, NULL, fimc_thread_func, &inst)) {
+	if (inst.fimc.enabled &&  pthread_create(&fimc_thread, NULL, fimc_thread_func, &inst)) {
 		cleanup(&inst);
 		return 1;
 	}
@@ -504,7 +513,8 @@ int main(int argc, char **argv)
 
 	pthread_join(parser_thread, 0);
 	pthread_join(mfc_thread, 0);
-	pthread_join(fimc_thread, 0);
+	if (inst.fimc.enabled)
+		pthread_join(fimc_thread, 0);
 
 	dbg("Threads have finished");
 
-- 
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