diff options
| author | Andy Walls <awalls@radix.net> | 2008-12-12 20:24:04 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 12:38:32 +0100 |
| commit | dd073434b5285121007860914a004320d644ee7e (patch) | |
| tree | 8ead658f43d30b68c07bea8b8f868835da7e5331 /drivers/media/video/cx18/cx18-fileops.c | |
| parent | V4L/DVB (9804): cx18: Avoid making firmware API calls with the queue lock held (diff) | |
| download | linux-dd073434b5285121007860914a004320d644ee7e.tar.xz linux-dd073434b5285121007860914a004320d644ee7e.zip | |
V4L/DVB (9805): cx18: Port fix for raw/sliced VBI mixup from ivtv and cx25840
This is a port of the fixes Hans Verkuil made for ivtv/cx25840:
The service_set field was used to determine whether raw or sliced VBI was
desired. This is incorrect since it is perfectly valid to select sliced VBI
with a service_set of 0.
Instead the driver should check on VIDIOC_S_FMT whether the type
field matches the raw or sliced VBI type.
Updated the cx18 driver accordingly, including an additional check in
cx18_start_v4l2_encode_stream() that didn't exist in ivtv.
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18/cx18-fileops.c')
| -rw-r--r-- | drivers/media/video/cx18/cx18-fileops.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/media/video/cx18/cx18-fileops.c b/drivers/media/video/cx18/cx18-fileops.c index 61192e62a80f..1856d59e0cf6 100644 --- a/drivers/media/video/cx18/cx18-fileops.c +++ b/drivers/media/video/cx18/cx18-fileops.c @@ -67,12 +67,11 @@ static int cx18_claim_stream(struct cx18_open_id *id, int type) } s->id = id->open_id; - /* CX18_DEC_STREAM_TYPE_MPG needs to claim CX18_DEC_STREAM_TYPE_VBI, - CX18_ENC_STREAM_TYPE_MPG needs to claim CX18_ENC_STREAM_TYPE_VBI + /* CX18_ENC_STREAM_TYPE_MPG needs to claim CX18_ENC_STREAM_TYPE_VBI (provided VBI insertion is on and sliced VBI is selected), for all other streams we're done */ if (type == CX18_ENC_STREAM_TYPE_MPG && - cx->vbi.insert_mpeg && cx->vbi.sliced_in->service_set) { + cx->vbi.insert_mpeg && !cx18_raw_vbi(cx)) { vbi_type = CX18_ENC_STREAM_TYPE_VBI; } else { return 0; @@ -258,7 +257,7 @@ static size_t cx18_copy_buf_to_user(struct cx18_stream *s, if (len > ucount) len = ucount; if (cx->vbi.insert_mpeg && s->type == CX18_ENC_STREAM_TYPE_MPG && - cx->vbi.sliced_in->service_set && buf != &cx->vbi.sliced_mpeg_buf) { + !cx18_raw_vbi(cx) && buf != &cx->vbi.sliced_mpeg_buf) { const char *start = buf->buf + buf->readpos; const char *p = start + 1; const u8 *q; @@ -333,8 +332,7 @@ static ssize_t cx18_read(struct cx18_stream *s, char __user *ubuf, /* Each VBI buffer is one frame, the v4l2 API says that for VBI the frames should arrive one-by-one, so make sure we never output more than one VBI frame at a time */ - if (s->type == CX18_ENC_STREAM_TYPE_VBI && - cx->vbi.sliced_in->service_set) + if (s->type == CX18_ENC_STREAM_TYPE_VBI && !cx18_raw_vbi(cx)) single_frame = 1; for (;;) { |