From 03796a1d930212aea460405b86cd41bea8fa5150 Mon Sep 17 00:00:00 2001
From: Eric Lee <saintgimp@hotmail.com>
Date: Thu, 26 Feb 2015 19:31:41 -0800
Subject: [PATCH] Fix mjpg-streamer to work with kernel 3.18

I didn't create this fix, it was originally posted to http://www.raspberrypi.org/forums/viewtopic.php?f=28&t=97983&p=681259.  @koosvriezen tried to create a pull request #3 but made kind of a hash of it, so this is the same fix only a proper pull request.
---
 mjpg-streamer/plugins/input_uvc/input_uvc.c | 8 +++++---
 mjpg-streamer/plugins/input_uvc/v4l2uvc.c   | 2 ++
 mjpg-streamer/plugins/input_uvc/v4l2uvc.h   | 3 +++
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/mjpg-streamer/plugins/input_uvc/input_uvc.c b/mjpg-streamer/plugins/input_uvc/input_uvc.c
index c0b2d10..ef264e9 100644
--- a/mjpg-streamer/plugins/input_uvc/input_uvc.c
+++ b/mjpg-streamer/plugins/input_uvc/input_uvc.c
@@ -405,9 +405,13 @@ void *cam_thread(void *arg)
         if(pcontext->videoIn->formatIn == V4L2_PIX_FMT_YUYV) {
             DBG("compressing frame from input: %d\n", (int)pcontext->id);
             pglobal->in[pcontext->id].size = compress_yuyv_to_jpeg(pcontext->videoIn, pglobal->in[pcontext->id].buf, pcontext->videoIn->framesizeIn, gquality);
+            /* copy this frame's timestamp to user space */
+            pglobal->in[pcontext->id].timestamp = pcontext->videoIn->buf.timestamp;
         } else {
             DBG("copying frame from input: %d\n", (int)pcontext->id);
-            pglobal->in[pcontext->id].size = memcpy_picture(pglobal->in[pcontext->id].buf, pcontext->videoIn->tmpbuffer, pcontext->videoIn->buf.bytesused);
+            pglobal->in[pcontext->id].size = memcpy_picture(pglobal->in[pcontext->id].buf, pcontext->videoIn->tmpbuffer, pcontext->videoIn->tmpbytesused);
+            /* copy this frame's timestamp to user space */
+            pglobal->in[pcontext->id].timestamp = pcontext->videoIn->tmptimestamp;
         }
 
 #if 0
@@ -418,8 +422,6 @@ void *cam_thread(void *arg)
         prev_size = global->size;
 #endif
 
-        /* copy this frame's timestamp to user space */
-        pglobal->in[pcontext->id].timestamp = pcontext->videoIn->buf.timestamp;
 
         /* signal fresh_frame */
         pthread_cond_broadcast(&pglobal->in[pcontext->id].db_update);
diff --git a/mjpg-streamer/plugins/input_uvc/v4l2uvc.c b/mjpg-streamer/plugins/input_uvc/v4l2uvc.c
index 48fd189..329233b 100644
--- a/mjpg-streamer/plugins/input_uvc/v4l2uvc.c
+++ b/mjpg-streamer/plugins/input_uvc/v4l2uvc.c
@@ -450,6 +450,8 @@ int uvcGrab(struct vdIn *vd)
         */
 
         memcpy(vd->tmpbuffer, vd->mem[vd->buf.index], vd->buf.bytesused);
+        vd->tmpbytesused = vd->buf.bytesused;
+        vd->tmptimestamp = vd->buf.timestamp;
 
         if(debug)
             fprintf(stderr, "bytes in used %d \n", vd->buf.bytesused);
diff --git a/mjpg-streamer/plugins/input_uvc/v4l2uvc.h b/mjpg-streamer/plugins/input_uvc/v4l2uvc.h
index d5296fc..0e3f99f 100644
--- a/mjpg-streamer/plugins/input_uvc/v4l2uvc.h
+++ b/mjpg-streamer/plugins/input_uvc/v4l2uvc.h
@@ -28,6 +28,7 @@
 
 
 #include <stdio.h>
+#include <stdint.h>
 #include <string.h>
 #include <fcntl.h>
 #include <unistd.h>
@@ -105,6 +106,8 @@ struct vdIn {
     int framecount;
     int recordstart;
     int recordtime;
+    uint32_t tmpbytesused;
+    struct timeval tmptimestamp;
 };
 
 /* context of each camera thread */