#define ENCODER_MIN_BITRATE 1000000
#define ENCODER_DEF_BITRATE 5000000
+/*
+ * This is a dummy non-zero value for the sizeimage field of v4l2_pix_format.
+ * It is not actually used for anything since this driver does not support
+ * stream I/O, only read(), and because this driver produces an MPEG stream
+ * and not discrete frames. But the V4L2 spec doesn't allow for this value
+ * to be 0, so set it to 0x10000 instead.
+ *
+ * If we ever change this driver to support stream I/O, then this field
+ * will be the size of the streaming buffers.
+ */
+#define SAA7164_SIZEIMAGE (0x10000)
+
static struct saa7164_tvnorm saa7164_tvnorms[] = {
{
.name = "NTSC-M",
return 0;
}
-static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+static int vidioc_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct saa7164_encoder_fh *fh = file->private_data;
struct saa7164_port *port = fh->port;
- struct saa7164_dev *dev = port->dev;
f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
f->fmt.pix.bytesperline = 0;
- f->fmt.pix.sizeimage =
- port->ts_packet_size * port->ts_packet_count;
- f->fmt.pix.colorspace = 0;
+ f->fmt.pix.sizeimage = SAA7164_SIZEIMAGE;
+ f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+ f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
f->fmt.pix.width = port->width;
f->fmt.pix.height = port->height;
-
- dprintk(DBGLVL_ENC, "VIDIOC_G_FMT: w: %d, h: %d\n",
- port->width, port->height);
-
- return 0;
-}
-
-static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct saa7164_encoder_fh *fh = file->private_data;
- struct saa7164_port *port = fh->port;
- struct saa7164_dev *dev = port->dev;
-
- f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
- f->fmt.pix.bytesperline = 0;
- f->fmt.pix.sizeimage =
- port->ts_packet_size * port->ts_packet_count;
- f->fmt.pix.colorspace = 0;
- dprintk(DBGLVL_ENC, "VIDIOC_TRY_FMT: w: %d, h: %d\n",
- port->width, port->height);
- return 0;
-}
-
-static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct saa7164_encoder_fh *fh = file->private_data;
- struct saa7164_port *port = fh->port;
- struct saa7164_dev *dev = port->dev;
-
- f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
- f->fmt.pix.bytesperline = 0;
- f->fmt.pix.sizeimage =
- port->ts_packet_size * port->ts_packet_count;
- f->fmt.pix.colorspace = 0;
-
- dprintk(DBGLVL_ENC, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n",
- f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field);
-
return 0;
}
.vidioc_s_frequency = vidioc_s_frequency,
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
- .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
- .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
- .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
- .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
+ .vidioc_g_fmt_vid_cap = vidioc_fmt_vid_cap,
+ .vidioc_try_fmt_vid_cap = vidioc_fmt_vid_cap,
+ .vidioc_s_fmt_vid_cap = vidioc_fmt_vid_cap,
.vidioc_log_status = v4l2_ctrl_log_status,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
return 0;
}
-static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_fmtdesc *f)
-{
- if (f->index != 0)
- return -EINVAL;
-
- strlcpy(f->description, "VBI", sizeof(f->description));
- f->pixelformat = V4L2_PIX_FMT_MPEG;
-
- return 0;
-}
-
-static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct saa7164_vbi_fh *fh = file->private_data;
- struct saa7164_port *port = fh->port;
- struct saa7164_dev *dev = port->dev;
-
- f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
- f->fmt.pix.bytesperline = 0;
- f->fmt.pix.sizeimage =
- port->ts_packet_size * port->ts_packet_count;
- f->fmt.pix.colorspace = 0;
- f->fmt.pix.width = port->width;
- f->fmt.pix.height = port->height;
-
- dprintk(DBGLVL_VBI, "VIDIOC_G_FMT: w: %d, h: %d\n",
- port->width, port->height);
-
- return 0;
-}
-
-static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct saa7164_vbi_fh *fh = file->private_data;
- struct saa7164_port *port = fh->port;
- struct saa7164_dev *dev = port->dev;
-
- f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
- f->fmt.pix.bytesperline = 0;
- f->fmt.pix.sizeimage =
- port->ts_packet_size * port->ts_packet_count;
- f->fmt.pix.colorspace = 0;
- dprintk(DBGLVL_VBI, "VIDIOC_TRY_FMT: w: %d, h: %d\n",
- port->width, port->height);
- return 0;
-}
-
-static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
- struct v4l2_format *f)
-{
- struct saa7164_vbi_fh *fh = file->private_data;
- struct saa7164_port *port = fh->port;
- struct saa7164_dev *dev = port->dev;
-
- f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
- f->fmt.pix.bytesperline = 0;
- f->fmt.pix.sizeimage =
- port->ts_packet_size * port->ts_packet_count;
- f->fmt.pix.colorspace = 0;
-
- dprintk(DBGLVL_VBI, "VIDIOC_S_FMT: w: %d, h: %d, f: %d\n",
- f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field);
-
- return 0;
-}
-
static int saa7164_vbi_stop_port(struct saa7164_port *port)
{
struct saa7164_dev *dev = port->dev;
struct v4l2_format *f)
{
/* ntsc */
- f->fmt.vbi.samples_per_line = 1600;
f->fmt.vbi.samples_per_line = 1440;
f->fmt.vbi.sampling_rate = 27000000;
f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
f->fmt.vbi.count[0] = 18;
f->fmt.vbi.start[1] = 263 + 10 + 1;
f->fmt.vbi.count[1] = 18;
+ memset(f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
return 0;
}
.vidioc_g_frequency = vidioc_g_frequency,
.vidioc_s_frequency = vidioc_s_frequency,
.vidioc_querycap = vidioc_querycap,
- .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
- .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
- .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
- .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
.vidioc_g_fmt_vbi_cap = saa7164_vbi_fmt,
.vidioc_try_fmt_vbi_cap = saa7164_vbi_fmt,
.vidioc_s_fmt_vbi_cap = saa7164_vbi_fmt,