diff options
| author | Hans Verkuil <hverkuil@xs4all.nl> | 2007-07-28 12:07:12 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@infradead.org> | 2007-10-09 22:05:32 -0300 |
| commit | f4071b85ea0ca3bd06f63c330562b4cfdffa8473 (patch) | |
| tree | 8390a1bb512949e9520f65de160e1e7291a4c36f /drivers/media/video/ivtv/ivtv-fileops.c | |
| parent | 3562c43be8cfd6e300508d7c33acebf3369eacd3 (diff) | |
V4L/DVB (6046): ivtv: always steal full frames if out of buffers.
When there are no more free buffers, then buffers are stolen from the
predma queue. Buffers should be stolen from the head of that queue (which
is where the most recently added buffers are) and all buffers belonging
to a frame should be stolen. Otherwise 'half-frames' would remain in the
queue, which leads to ugly playback and complete sync failure for YUV
buffers.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-fileops.c')
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-fileops.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/video/ivtv/ivtv-fileops.c b/drivers/media/video/ivtv/ivtv-fileops.c index 908e640c274..076b0089a2b 100644 --- a/drivers/media/video/ivtv/ivtv-fileops.c +++ b/drivers/media/video/ivtv/ivtv-fileops.c @@ -247,8 +247,9 @@ static struct ivtv_buffer *ivtv_get_buffer(struct ivtv_stream *s, int non_block, /* do we have new data? */ buf = ivtv_dequeue(s, &s->q_full); if (buf) { - if (!test_and_clear_bit(IVTV_F_B_NEED_BUF_SWAP, &buf->b_flags)) + if ((buf->b_flags & IVTV_F_B_NEED_BUF_SWAP) == 0) return buf; + buf->b_flags &= ~IVTV_F_B_NEED_BUF_SWAP; if (s->type == IVTV_ENC_STREAM_TYPE_MPG) /* byteswap MPG data */ ivtv_buf_swap(buf); |