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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-13 13:04:31 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-13 13:04:31 -0300 |
| commit | 5da9d7f5f979a7489135b5030c3c5cfe68a2a4fb (patch) | |
| tree | 2c3ff62e9c9686d8ac66bc38cf73f48a5f47ce7c /linux/drivers/media/video/gspca/mr97310a.c | |
| parent | 1340daf098275689f8220222447a84e4ec4263b6 (diff) | |
| download | mediapointer-dvb-s2-5da9d7f5f979a7489135b5030c3c5cfe68a2a4fb.tar.gz mediapointer-dvb-s2-5da9d7f5f979a7489135b5030c3c5cfe68a2a4fb.tar.bz2 | |
mr97310a: don't discard frame headers on stream output
From: Theodore Kilgore <kilgota@auburn.edu>
Fix a bug where all frame headers were being discarded, instead of being part of the
stream output, on MR97310A cameras.
The frame headers contain information which may be useful in processing
the video output and therefore should be kept and not discarded.
A corresponding patch to the decompression algorithm in
libv4lconvert/mr97310a.c corrects the change in frame offset.
Priority: high
Signed-off-by: Theodore Kilgore <kilgota@auburn.edu>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'linux/drivers/media/video/gspca/mr97310a.c')
| -rw-r--r-- | linux/drivers/media/video/gspca/mr97310a.c | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/linux/drivers/media/video/gspca/mr97310a.c b/linux/drivers/media/video/gspca/mr97310a.c index 5ec5ce6e3..2a901a4a6 100644 --- a/linux/drivers/media/video/gspca/mr97310a.c +++ b/linux/drivers/media/video/gspca/mr97310a.c @@ -29,9 +29,7 @@ MODULE_LICENSE("GPL"); /* specific webcam descriptor */ struct sd { struct gspca_dev gspca_dev; /* !! must be the first item */ - u8 sof_read; - u8 header_read; }; /* V4L2 controls supported by the driver */ @@ -285,7 +283,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, __u8 *data, /* isoc packet */ int len) /* iso packet length */ { - struct sd *sd = (struct sd *) gspca_dev; unsigned char *sof; sof = pac_find_sof(gspca_dev, data, len); @@ -300,25 +297,12 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, n = 0; frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame, data, n); - sd->header_read = 0; - gspca_frame_add(gspca_dev, FIRST_PACKET, frame, NULL, 0); + /* Start next frame. */ + gspca_frame_add(gspca_dev, FIRST_PACKET, frame, + pac_sof_marker, sizeof pac_sof_marker); len -= sof - data; data = sof; } - if (sd->header_read < 7) { - int needed; - - /* skip the rest of the header */ - needed = 7 - sd->header_read; - if (len <= needed) { - sd->header_read += len; - return; - } - data += needed; - len -= needed; - sd->header_read = 7; - } - gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len); } |