From: Andy Walls Date: Mon, 2 Feb 2009 00:42:12 +0000 (-0300) Subject: V4L/DVB (10440): cx18: Fix presentation timestamp (PTS) for VBI buffers X-Git-Tag: firefly_0821_release~15196^2~572 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=776fa869883e60a065df13e73252344477c8e1aa;p=firefly-linux-kernel-4.4.55.git V4L/DVB (10440): cx18: Fix presentation timestamp (PTS) for VBI buffers The old code from ivtv used a CX23415/6 PTS, which was simply left at 0 in the cx18 driver. Since the CX23418 gives us what I think is a PTS (or some other 90 kHz clock count) with each VBI buffer, this change has the cx18 driver use that as a PTS. Signed-off-by: Andy Walls Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index a41d9c4178f0..c9b6df50ab27 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -293,7 +293,6 @@ struct cx18_stream { int dma; /* can be PCI_DMA_TODEVICE, PCI_DMA_FROMDEVICE or PCI_DMA_NONE */ - u64 dma_pts; wait_queue_head_t waitq; /* Buffer Stats */ diff --git a/drivers/media/video/cx18/cx18-fileops.c b/drivers/media/video/cx18/cx18-fileops.c index 0b1dbc67e1ab..68dd50ac4bfe 100644 --- a/drivers/media/video/cx18/cx18-fileops.c +++ b/drivers/media/video/cx18/cx18-fileops.c @@ -188,7 +188,6 @@ static struct cx18_buffer *cx18_get_buffer(struct cx18_stream *s, int non_block, while ((buf = cx18_dequeue(s_vbi, &s_vbi->q_full))) { /* byteswap and process VBI data */ cx18_process_vbi_data(cx, buf, - s_vbi->dma_pts, s_vbi->type); cx18_stream_put_buf_fw(s_vbi, buf); } @@ -209,8 +208,7 @@ static struct cx18_buffer *cx18_get_buffer(struct cx18_stream *s, int non_block, cx18_buf_swap(buf); else { /* byteswap and process VBI data */ - cx18_process_vbi_data(cx, buf, - s->dma_pts, s->type); + cx18_process_vbi_data(cx, buf, s->type); } return buf; } diff --git a/drivers/media/video/cx18/cx18-vbi.c b/drivers/media/video/cx18/cx18-vbi.c index 38d26c42e4cb..d6e15e119582 100644 --- a/drivers/media/video/cx18/cx18-vbi.c +++ b/drivers/media/video/cx18/cx18-vbi.c @@ -168,27 +168,28 @@ static u32 compress_sliced_buf(struct cx18 *cx, u32 line, u8 *buf, } void cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf, - u64 pts_stamp, int streamtype) + int streamtype) { u8 *p = (u8 *) buf->buf; + u32 *q = (u32 *) buf->buf; u32 size = buf->bytesused; + u32 pts; int lines; if (streamtype != CX18_ENC_STREAM_TYPE_VBI) return; + cx18_buf_swap(buf); + /* - * Note the CX23418 provides a 12 byte header, in it's raw VBI - * buffers to us, that we currently throw away: - * 0x3fffffff [4 bytes of something] [4 byte timestamp] + * The CX23418 provides a 12 byte header in it's raw VBI buffers to us: + * 0x3fffffff [4 bytes of something] [4 byte presentation time stamp?] */ /* Raw VBI data */ if (cx18_raw_vbi(cx)) { u8 type; - cx18_buf_swap(buf); - /* Skip 12 bytes of header that gets stuffed in */ size -= 12; memcpy(p, &buf->buf[12], size); @@ -208,7 +209,8 @@ void cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf, } /* Sliced VBI data with data insertion */ - cx18_buf_swap(buf); + + pts = (q[0] == 0x3fffffff) ? q[2] : 0; /* first field */ /* compress_sliced_buf() will skip the 12 bytes of header */ @@ -230,6 +232,6 @@ void cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf, memcpy(p, &cx->vbi.sliced_data[0], size); if (cx->vbi.insert_mpeg) - copy_vbi_data(cx, lines, pts_stamp); + copy_vbi_data(cx, lines, pts); cx->vbi.frame++; } diff --git a/drivers/media/video/cx18/cx18-vbi.h b/drivers/media/video/cx18/cx18-vbi.h index c56ff7d28f20..e7e1ae427f34 100644 --- a/drivers/media/video/cx18/cx18-vbi.h +++ b/drivers/media/video/cx18/cx18-vbi.h @@ -22,5 +22,5 @@ */ void cx18_process_vbi_data(struct cx18 *cx, struct cx18_buffer *buf, - u64 pts_stamp, int streamtype); + int streamtype); int cx18_used_line(struct cx18 *cx, int line, int field);