diff options
| author | Andy Walls <awalls@radix.net> | 2009-11-11 00:22:57 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-12-05 18:41:53 -0200 |
| commit | 127ce5f0adcca71eeeed2386ed4742ea6363a063 (patch) | |
| tree | 2b41f1ed2a7abf484fbd9669562229ca7f02ef12 /drivers/media/video/cx18 | |
| parent | 1047a83844a4d894a068d94aca2d3efe54ac7a9c (diff) | |
V4L/DVB (13432): cx18: Adjust encoder VBI MDL size to be exactly frame's worth of VBI data
Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18')
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.c | 4 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-driver.h | 1 | ||||
| -rw-r--r-- | drivers/media/video/cx18/cx18-streams.c | 16 |
3 files changed, 17 insertions, 4 deletions
diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index 87a735f1ee9e..1a67ad5daad3 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -87,7 +87,6 @@ static int enc_ts_bufsize = CX18_DEFAULT_ENC_TS_BUFSIZE; static int enc_mpg_bufsize = CX18_DEFAULT_ENC_MPG_BUFSIZE; static int enc_idx_bufsize = CX18_DEFAULT_ENC_IDX_BUFSIZE; static int enc_yuv_bufsize = CX18_DEFAULT_ENC_YUV_BUFSIZE; -/* VBI bufsize based on standards supported by card tuner for now */ static int enc_pcm_bufsize = CX18_DEFAULT_ENC_PCM_BUFSIZE; static int enc_ts_bufs = -1; @@ -128,7 +127,6 @@ module_param(enc_ts_bufsize, int, 0644); module_param(enc_mpg_bufsize, int, 0644); module_param(enc_idx_bufsize, int, 0644); module_param(enc_yuv_bufsize, int, 0644); -/* VBI bufsize based on standards supported by card tuner for now */ module_param(enc_pcm_bufsize, int, 0644); module_param(enc_ts_bufs, int, 0644); @@ -222,7 +220,7 @@ MODULE_PARM_DESC(enc_vbi_buffers, "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_VBI_BUFFERS)); MODULE_PARM_DESC(enc_vbi_bufs, "Number of encoder VBI buffers\n" - "\t\t\tDefault is computed from enc_vbi_buffers & tuner std"); + "\t\t\tDefault is computed from enc_vbi_buffers"); MODULE_PARM_DESC(enc_pcm_buffers, "Encoder PCM buffer memory (MB). (enc_pcm_bufs can override)\n" "\t\t\tDefault: " __stringify(CX18_DEFAULT_ENC_PCM_BUFFERS)); diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index 5c78b014dbc0..fe767b82c9a8 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -130,7 +130,6 @@ #define CX18_DEFAULT_ENC_MPG_BUFSIZE 32 #define CX18_DEFAULT_ENC_IDX_BUFSIZE 32 #define CX18_DEFAULT_ENC_YUV_BUFSIZE (CX18_UNIT_ENC_YUV_BUFSIZE * 3 / 1024 + 1) -/* Default VBI bufsize based on standards supported by card tuner for now */ #define CX18_DEFAULT_ENC_PCM_BUFSIZE 4 /* i2c stuff */ diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c index 7755937fc521..c398651dd74c 100644 --- a/drivers/media/video/cx18/cx18-streams.c +++ b/drivers/media/video/cx18/cx18-streams.c @@ -515,6 +515,22 @@ static void cx18_stream_configure_mdls(struct cx18_stream *s) if (s->mdl_size % s->buf_size) s->bufs_per_mdl++; break; + case CX18_ENC_STREAM_TYPE_VBI: + s->bufs_per_mdl = 1; + if (cx18_raw_vbi(s->cx)) { + s->mdl_size = (s->cx->is_60hz ? 12 : 18) + * 2 * vbi_active_samples; + } else { + /* + * See comment in cx18_vbi_setup() below about the + * extra lines we capture in sliced VBI mode due to + * the lines on which EAV RP codes toggle. + */ + s->mdl_size = s->cx->is_60hz + ? (21 - 4 + 1) * 2 * vbi_hblank_samples_60Hz + : (23 - 2 + 1) * 2 * vbi_hblank_samples_50Hz; + } + break; default: s->bufs_per_mdl = 1; s->mdl_size = s->buf_size * s->bufs_per_mdl; |