summaryrefslogtreecommitdiffstats
path: root/drivers/media/video/uvc
diff options
context:
space:
mode:
authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2011-11-03 07:24:34 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-12-11 11:14:31 -0200
commit3afedb95858bcc117b207a7c0a6767fe891bdfe9 (patch)
treecf21cbf7f8fb866ab281544b9a33d387a2cad7aa /drivers/media/video/uvc
parent0c6a3b268e14ab99960028c9ad202b9aebae0a03 (diff)
[media] uvcvideo: Don't skip erroneous payloads
Instead of skipping the payload completely, which would make the resulting image corrupted anyway, store the payload normally and mark the buffer as erroneous. If the no_drop module parameter is set to 1 the buffer will then be passed to userspace, and tt will then be up to the application to decide what to do with the buffer. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/uvc')
-rw-r--r--drivers/media/video/uvc/uvc_video.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index b953dae5205..a57f8134184 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -409,13 +409,6 @@ static int uvc_video_decode_start(struct uvc_streaming *stream,
if (len < 2 || data[0] < 2 || data[0] > len)
return -EINVAL;
- /* Skip payloads marked with the error bit ("error frames"). */
- if (data[1] & UVC_STREAM_ERR) {
- uvc_trace(UVC_TRACE_FRAME, "Dropping payload (error bit "
- "set).\n");
- return -ENODATA;
- }
-
fid = data[1] & UVC_STREAM_FID;
/* Increase the sequence number regardless of any buffer states, so
@@ -432,6 +425,13 @@ static int uvc_video_decode_start(struct uvc_streaming *stream,
return -ENODATA;
}
+ /* Mark the buffer as bad if the error bit is set. */
+ if (data[1] & UVC_STREAM_ERR) {
+ uvc_trace(UVC_TRACE_FRAME, "Marking buffer as bad (error bit "
+ "set).\n");
+ buf->error = 1;
+ }
+
/* Synchronize to the input stream by waiting for the FID bit to be
* toggled when the the buffer state is not UVC_BUF_STATE_ACTIVE.
* stream->last_fid is initialized to -1, so the first isochronous