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authorMike Isely <isely@pobox.com>2008-05-26 05:54:24 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-07-20 07:07:02 -0300
commitfa98e594220b86eb3632de478352e93ebf1201fa (patch)
tree7e831252379c06cbfbbd2a214d5e836b1ad92b7d /drivers
parent83ce57aa45a59e25146a32ee9f68edb7eecacd2b (diff)
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V4L/DVB (7938): pvrusb2: Increase enforced encoder wait delay to improve reliability
The driver enforces a "quiet period" on the encoder in certain situations before attempting to operate it. This seems to help avoid video encoding errors / corruption. The quiet period was 50msec, but through experimentation it has been observed to improve further if the interval is increased to 100msec. Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/media/video/pvrusb2/pvrusb2-hdw.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
index d4d5795..f30e13f 100644
--- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c
@@ -44,8 +44,10 @@
#define TIME_MSEC_DECODER_WAIT 50
/* This defines a minimum interval that the encoder must remain quiet
- before we are allowed to configure it. */
-#define TIME_MSEC_ENCODER_WAIT 50
+ before we are allowed to configure it. I had this originally set to
+ 50msec, but Martin Dauskardt <martin.dauskardt@gmx.de> reports that
+ things work better when it's set to 100msec. */
+#define TIME_MSEC_ENCODER_WAIT 100
/* This defines the minimum interval that the encoder must successfully run
before we consider that the encoder has run at least once since its