From e19574ce7766cd754b42808c36cc88fd0f510033 Mon Sep 17 00:00:00 2001
From: pommicket <pommicket@gmail.com>
Date: Thu, 20 Feb 2025 10:02:58 -0500
Subject: optimization for MJPEG->JPEG saving

---
 camera.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/camera.c b/camera.c
index f2c43f5..a8872b4 100644
--- a/camera.c
+++ b/camera.c
@@ -336,6 +336,16 @@ static uint8_t *curr_frame_rgb24(Camera *camera) {
 }
 
 bool camera_save_jpg(Camera *camera, const char *name, int quality) {
+	if (camera_pixel_format(camera) == V4L2_PIX_FMT_MJPEG && camera_curr_frame(camera)) {
+		// frame is already in jpeg format
+		FILE *fp = fopen(name, "wb");
+		if (!fp) {
+			perror("fopen");
+			return false;
+		}
+		fwrite(camera_curr_frame(camera), 1, camera->frame_bytes_set, fp);
+		fclose(fp);
+	}
 	uint8_t *frame = curr_frame_rgb24(camera);
 	if (frame) {
 		uint32_t frame_width = camera_frame_width(camera);
-- 
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