From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Sun, 3 Mar 2013 14:21:29 +0000 (+0100)
Subject: v4l2-ctl: when streaming to file use bytesused instead of the full buffer.
X-Git-Tag: v4l-utils-0.9.4~49
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=85a2639bfc57de7970fde09ec43100b409b86c44;p=platform%2Fupstream%2Fv4l-utils.git

v4l2-ctl: when streaming to file use bytesused instead of the full buffer.

This makes it possible to use v4l2-ctl to stream compressed video using
stream I/O.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
---

diff --git a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
index 5a080e3..e23e317 100644
--- a/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
+++ b/utils/v4l2-ctl/v4l2-ctl-streaming.cpp
@@ -674,11 +674,11 @@ void streaming_set(int fd)
 			if (fout && !stream_skip) {
 				for (unsigned j = 0; j < num_planes; j++) {
 					unsigned p = buf.index * num_planes + j;
-					unsigned sz = fwrite(buffers[p], 1,
-							buffer_lengths[p], fout);
+					unsigned used = is_mplane ? planes[j].bytesused : buf.bytesused;
+					unsigned sz = fwrite(buffers[p], 1, used, fout);
 
-					if (sz != buffer_lengths[p])
-						fprintf(stderr, "%u != %u\n", sz, buffer_lengths[p]);
+					if (sz != used)
+						fprintf(stderr, "%u != %u\n", sz, used);
 				}
 			}
 			if (doioctl(fd, VIDIOC_QBUF, &buf))