[media] saa7164: implement encoder peak bitrate feature

Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/saa7164/saa7164-api.c b/drivers/media/video/saa7164/saa7164-api.c
index 34ac648..54568cf 100644 (file)
--- a/drivers/media/video/saa7164/saa7164-api.c
+++ b/drivers/media/video/saa7164/saa7164-api.c
@@ -64,7 +64,7 @@ int saa7164_api_set_encoder(struct saa7164_port *port)
        else
                vb.ucVideoBitRateMode = EU_VIDEO_BIT_RATE_MODE_VARIABLE_PEAK;
        vb.dwVideoBitRate = port->encoder_params.bitrate;
-       vb.dwVideoBitRatePeak = vb.dwVideoBitRate;
+       vb.dwVideoBitRatePeak = port->encoder_params.bitrate_peak;
        ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, SET_CUR,
                EU_VIDEO_BIT_RATE_CONTROL, sizeof(tmComResEncVideoBitRate_t), &vb);
        if (ret != SAA_OK)

diff --git a/drivers/media/video/saa7164/saa7164-encoder.c b/drivers/media/video/saa7164/saa7164-encoder.c
index 5cab466..c1265b8 100644 (file)
--- a/drivers/media/video/saa7164/saa7164-encoder.c
+++ b/drivers/media/video/saa7164/saa7164-encoder.c
@@ -47,6 +47,7 @@ static const u32 saa7164_v4l2_ctrls[] = {
        V4L2_CID_MPEG_AUDIO_MUTE,
        V4L2_CID_MPEG_VIDEO_BITRATE_MODE,
        V4L2_CID_MPEG_VIDEO_BITRATE,
+       V4L2_CID_MPEG_VIDEO_BITRATE_PEAK,
        V4L2_CID_MPEG_VIDEO_B_FRAMES,
        0
 };
@@ -387,6 +388,9 @@ static int saa7164_get_ctrl(struct saa7164_port *port,
        case V4L2_CID_MPEG_VIDEO_B_FRAMES:
                ctrl->value = params->refdist;
                break;
+       case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+               ctrl->value = params->bitrate_peak;
+               break;
        default:
                return -EINVAL;
        }
@@ -456,6 +460,11 @@ static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3)
                        (ctrl->value <= 3))
                        ret = 0;
                break;
+       case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+               if ((ctrl->value >= ENCODER_MIN_BITRATE) &&
+                       (ctrl->value <= ENCODER_MAX_BITRATE))
+                       ret = 0;
+               break;
        default:
                ret = -EINVAL;
        }
@@ -521,6 +530,9 @@ static int saa7164_set_ctrl(struct saa7164_port *port,
        case V4L2_CID_MPEG_VIDEO_B_FRAMES:
                params->refdist = ctrl->value;
                break;
+       case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+               params->bitrate_peak = ctrl->value;
+               break;
        default:
                return -EINVAL;
        }
@@ -698,6 +710,10 @@ static int fill_queryctrl(struct saa7164_encoder_params *params,
        case V4L2_CID_MPEG_VIDEO_B_FRAMES:
                return v4l2_ctrl_query_fill(c,
                        1, 3, 1, 1);
+       case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK:
+               return v4l2_ctrl_query_fill(c,
+                       ENCODER_MIN_BITRATE, ENCODER_MAX_BITRATE,
+                       100000, ENCODER_DEF_BITRATE);
        default:
                return -EINVAL;
        }
@@ -1318,6 +1334,7 @@ int saa7164_encoder_register(struct saa7164_port *port)
        port->ctl_saturation = 62;
        port->ctl_sharpness = 8;
        port->encoder_params.bitrate = ENCODER_DEF_BITRATE;
+       port->encoder_params.bitrate_peak = ENCODER_DEF_BITRATE;
        port->encoder_params.bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_VBR;
        port->encoder_params.stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS;
        port->encoder_params.ctl_mute = 0;

diff --git a/drivers/media/video/saa7164/saa7164.h b/drivers/media/video/saa7164/saa7164.h
index 1d9c4e3..dade968 100644 (file)
--- a/drivers/media/video/saa7164/saa7164.h
+++ b/drivers/media/video/saa7164/saa7164.h
@@ -255,6 +255,7 @@ struct saa7164_encoder_params {
        u32 width;
        u32 is_50hz;
        u32 bitrate; /* bps */
+       u32 bitrate_peak; /* bps */
        u32 bitrate_mode;
        u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */