diff options
author | Steven Toth <stoth@kernellabs.com> | 2010-07-31 21:51:30 +0400 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-10-21 13:54:43 +0400 |
commit | 2600d71cc535907e5d95cd31751c587afc370065 (patch) | |
tree | 9c87d5125c15355f3c4b39c4b059cf58ce33d2da | |
parent | 076031310b182ce89cea861982ff49ed6799767a (diff) | |
download | linux-2600d71cc535907e5d95cd31751c587afc370065.tar.xz |
[media] saa7164: add support for encoder CBR and VBR optionally
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r-- | drivers/media/video/saa7164/saa7164-api.c | 5 | ||||
-rw-r--r-- | drivers/media/video/saa7164/saa7164-encoder.c | 17 | ||||
-rw-r--r-- | drivers/media/video/saa7164/saa7164-types.h | 3 | ||||
-rw-r--r-- | drivers/media/video/saa7164/saa7164.h | 1 |
4 files changed, 25 insertions, 1 deletions
diff --git a/drivers/media/video/saa7164/saa7164-api.c b/drivers/media/video/saa7164/saa7164-api.c index 5dcdf7bb12cd..fec5138737e0 100644 --- a/drivers/media/video/saa7164/saa7164-api.c +++ b/drivers/media/video/saa7164/saa7164-api.c @@ -59,7 +59,10 @@ int saa7164_api_set_encoder(struct saa7164_port *port) printk(KERN_ERR "%s() error, ret = 0x%x\n", __func__, ret); /* Establish video bitrates */ - vb.ucVideoBitRateMode = 0; + if (port->encoder_params.bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR) + vb.ucVideoBitRateMode = EU_VIDEO_BIT_RATE_MODE_CONSTANT; + else + vb.ucVideoBitRateMode = EU_VIDEO_BIT_RATE_MODE_VARIABLE_PEAK; vb.dwVideoBitRate = port->encoder_params.bitrate; vb.dwVideoBitRatePeak = vb.dwVideoBitRate; ret = saa7164_cmd_send(port->dev, port->hwcfg.sourceid, SET_CUR, diff --git a/drivers/media/video/saa7164/saa7164-encoder.c b/drivers/media/video/saa7164/saa7164-encoder.c index 74aec26dbb25..d7d2fe009ff9 100644 --- a/drivers/media/video/saa7164/saa7164-encoder.c +++ b/drivers/media/video/saa7164/saa7164-encoder.c @@ -45,6 +45,7 @@ static const u32 saa7164_v4l2_ctrls[] = { V4L2_CID_MPEG_VIDEO_ASPECT, V4L2_CID_MPEG_STREAM_TYPE, V4L2_CID_MPEG_AUDIO_MUTE, + V4L2_CID_MPEG_VIDEO_BITRATE_MODE, V4L2_CID_MPEG_VIDEO_BITRATE, 0 }; @@ -379,6 +380,9 @@ static int saa7164_get_ctrl(struct saa7164_port *port, case V4L2_CID_MPEG_VIDEO_ASPECT: ctrl->value = params->ctl_aspect; break; + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + ctrl->value = params->bitrate_mode; + break; default: return -EINVAL; } @@ -438,6 +442,11 @@ static int saa7164_try_ctrl(struct v4l2_ext_control *ctrl, int ac3) (ctrl->value <= 255)) ret = 0; break; + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + if ((ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) || + (ctrl->value == V4L2_MPEG_VIDEO_BITRATE_MODE_CBR)) + ret = 0; + break; default: ret = -EINVAL; } @@ -497,6 +506,9 @@ static int saa7164_set_ctrl(struct saa7164_port *port, ret = -EIO; } break; + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + params->bitrate_mode = ctrl->value; + break; default: return -EINVAL; } @@ -667,6 +679,10 @@ static int fill_queryctrl(struct saa7164_encoder_params *params, 1, V4L2_MPEG_VIDEO_ASPECT_4x3); case V4L2_CID_MPEG_VIDEO_GOP_SIZE: return v4l2_ctrl_query_fill(c, 1, 255, 1, 15); + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + return v4l2_ctrl_query_fill(c, + V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, + 1, V4L2_MPEG_VIDEO_BITRATE_MODE_VBR); default: return -EINVAL; } @@ -1287,6 +1303,7 @@ 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_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_VBR; port->encoder_params.stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS; port->encoder_params.ctl_mute = 0; port->encoder_params.ctl_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3; diff --git a/drivers/media/video/saa7164/saa7164-types.h b/drivers/media/video/saa7164/saa7164-types.h index 7c2788d9a647..dacd9ce1d419 100644 --- a/drivers/media/video/saa7164/saa7164-types.h +++ b/drivers/media/video/saa7164/saa7164-types.h @@ -311,6 +311,9 @@ typedef struct } __attribute__((packed)) tmComResProcDescrHeader_t; /* Video bitrate control message */ +#define EU_VIDEO_BIT_RATE_MODE_CONSTANT (0) +#define EU_VIDEO_BIT_RATE_MODE_VARIABLE_AVERAGE (1) +#define EU_VIDEO_BIT_RATE_MODE_VARIABLE_PEAK (2) typedef struct { u8 ucVideoBitRateMode; diff --git a/drivers/media/video/saa7164/saa7164.h b/drivers/media/video/saa7164/saa7164.h index a262875a39e3..712f762d9f73 100644 --- 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_mode; u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */ u32 audio_sampling_freq; |