From 4de69319f013f8ebf6ec5b949497870353eb799a Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Thu, 2 Oct 2014 14:08:26 -0300 Subject: [PATCH] [media] coda: add support for planar YCbCr 4:2:2 (YUV422P) format This patch adds support for the three-plane YUV422P format with one luma plane and two horizontally subsampled chroma planes. Signed-off-by: Philipp Zabel Signed-off-by: Kamil Debski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/coda/coda-bit.c | 14 +++++++++++++- drivers/media/platform/coda/coda-common.c | 13 +++++++++++++ 2 files changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c index fde777573f7b..746a6158ccd0 100644 --- a/drivers/media/platform/coda/coda-bit.c +++ b/drivers/media/platform/coda/coda-bit.c @@ -1591,6 +1591,7 @@ static void coda_finish_decode(struct coda_ctx *ctx) struct coda_q_data *q_data_dst; struct vb2_buffer *dst_buf; struct coda_timestamp *ts; + unsigned long payload; int width, height; int decoded_idx; int display_idx; @@ -1776,7 +1777,18 @@ static void coda_finish_decode(struct coda_ctx *ctx) dst_buf->v4l2_buf.timecode = ts->timecode; dst_buf->v4l2_buf.timestamp = ts->timestamp; - vb2_set_plane_payload(dst_buf, 0, width * height * 3 / 2); + switch (q_data_dst->fourcc) { + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_YVU420: + case V4L2_PIX_FMT_NV12: + default: + payload = width * height * 3 / 2; + break; + case V4L2_PIX_FMT_YUV422P: + payload = width * height * 2; + break; + } + vb2_set_plane_payload(dst_buf, 0, payload); v4l2_m2m_buf_done(dst_buf, ctx->frame_errors[display_idx] ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE); diff --git a/drivers/media/platform/coda/coda-common.c b/drivers/media/platform/coda/coda-common.c index 02d47fabae65..48be97330ee1 100644 --- a/drivers/media/platform/coda/coda-common.c +++ b/drivers/media/platform/coda/coda-common.c @@ -100,6 +100,9 @@ void coda_write_base(struct coda_ctx *ctx, struct coda_q_data *q_data, base_cb = base_y + q_data->bytesperline * q_data->height; base_cr = base_cb + q_data->bytesperline * q_data->height / 4; break; + case V4L2_PIX_FMT_YUV422P: + base_cb = base_y + q_data->bytesperline * q_data->height; + base_cr = base_cb + q_data->bytesperline * q_data->height / 2; } coda_write(ctx->dev, base_y, reg_y); @@ -123,6 +126,10 @@ static const struct coda_fmt coda_formats[] = { .name = "YUV 4:2:0 Partial interleaved Y/CbCr", .fourcc = V4L2_PIX_FMT_NV12, }, + { + .name = "YUV 4:2:2 Planar, YCbCr", + .fourcc = V4L2_PIX_FMT_YUV422P, + }, { .name = "H264 Encoded Stream", .fourcc = V4L2_PIX_FMT_H264, @@ -168,6 +175,7 @@ static bool coda_format_is_yuv(u32 fourcc) case V4L2_PIX_FMT_YUV420: case V4L2_PIX_FMT_YVU420: case V4L2_PIX_FMT_NV12: + case V4L2_PIX_FMT_YUV422P: return true; default: return false; @@ -393,6 +401,11 @@ static int coda_try_fmt(struct coda_ctx *ctx, const struct coda_codec *codec, f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * f->fmt.pix.height * 3 / 2; break; + case V4L2_PIX_FMT_YUV422P: + f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 16); + f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * + f->fmt.pix.height * 2; + break; case V4L2_PIX_FMT_H264: case V4L2_PIX_FMT_MPEG4: case V4L2_PIX_FMT_JPEG: -- 2.34.1