From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-la0-f51.google.com ([209.85.215.51]:41359 "EHLO mail-la0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751573Ab3HBWnC (ORCPT ); Fri, 2 Aug 2013 18:43:02 -0400 Received: by mail-la0-f51.google.com with SMTP id fp13so807854lab.24 for ; Fri, 02 Aug 2013 15:43:00 -0700 (PDT) From: Ricardo Ribalda Delgado To: hans.verkuil@cisco.com, linux-media@vger.kernel.org, Gregor Jasny Cc: Ricardo Ribalda Delgado Subject: [PATCH v2 1/2] libv4lconvert: Support for Y16 pixel format Date: Sat, 3 Aug 2013 00:42:51 +0200 Message-Id: <1375483372-4354-2-git-send-email-ricardo.ribalda@gmail.com> In-Reply-To: <1375483372-4354-1-git-send-email-ricardo.ribalda@gmail.com> References: <1375483372-4354-1-git-send-email-ricardo.ribalda@gmail.com> Sender: linux-media-owner@vger.kernel.org List-ID: This patch adds support for V4L2_PIX_FMT_Y16 format. Signed-off-by: Ricardo Ribalda Delgado --- lib/libv4lconvert/libv4lconvert-priv.h | 6 ++++++ lib/libv4lconvert/libv4lconvert.c | 19 +++++++++++++++++++ lib/libv4lconvert/rgbyuv.c | 30 ++++++++++++++++++++++++++++++ 3 files changed, 55 insertions(+) diff --git a/lib/libv4lconvert/libv4lconvert-priv.h b/lib/libv4lconvert/libv4lconvert-priv.h index c37e220..6422fdd 100644 --- a/lib/libv4lconvert/libv4lconvert-priv.h +++ b/lib/libv4lconvert/libv4lconvert-priv.h @@ -152,6 +152,12 @@ void v4lconvert_grey_to_rgb24(const unsigned char *src, unsigned char *dest, void v4lconvert_grey_to_yuv420(const unsigned char *src, unsigned char *dest, const struct v4l2_format *src_fmt); +void v4lconvert_y16_to_rgb24(const unsigned char *src, unsigned char *dest, + int width, int height); + +void v4lconvert_y16_to_yuv420(const unsigned char *src, unsigned char *dest, + const struct v4l2_format *src_fmt); + int v4lconvert_y10b_to_rgb24(struct v4lconvert_data *data, const unsigned char *src, unsigned char *dest, int width, int height); diff --git a/lib/libv4lconvert/libv4lconvert.c b/lib/libv4lconvert/libv4lconvert.c index 60010f1..bc5e34f 100644 --- a/lib/libv4lconvert/libv4lconvert.c +++ b/lib/libv4lconvert/libv4lconvert.c @@ -128,6 +128,7 @@ static const struct v4lconvert_pixfmt supported_src_pixfmts[] = { { V4L2_PIX_FMT_Y4, 8, 20, 20, 0 }, { V4L2_PIX_FMT_Y6, 8, 20, 20, 0 }, { V4L2_PIX_FMT_Y10BPACK, 10, 20, 20, 0 }, + { V4L2_PIX_FMT_Y16, 16, 20, 20, 0 }, }; static const struct v4lconvert_pixfmt supported_dst_pixfmts[] = { @@ -989,6 +990,24 @@ static int v4lconvert_convert_pixfmt(struct v4lconvert_data *data, break; } + case V4L2_PIX_FMT_Y16: + switch (dest_pix_fmt) { + case V4L2_PIX_FMT_RGB24: + case V4L2_PIX_FMT_BGR24: + v4lconvert_y16_to_rgb24(src, dest, width, height); + break; + case V4L2_PIX_FMT_YUV420: + case V4L2_PIX_FMT_YVU420: + v4lconvert_y16_to_yuv420(src, dest, fmt); + break; + } + if (src_size < (width * height * 2)) { + V4LCONVERT_ERR("short y16 data frame\n"); + errno = EPIPE; + result = -1; + } + break; + case V4L2_PIX_FMT_GREY: case V4L2_PIX_FMT_Y4: case V4L2_PIX_FMT_Y6: diff --git a/lib/libv4lconvert/rgbyuv.c b/lib/libv4lconvert/rgbyuv.c index d05abe9..bef034f 100644 --- a/lib/libv4lconvert/rgbyuv.c +++ b/lib/libv4lconvert/rgbyuv.c @@ -586,6 +586,36 @@ void v4lconvert_rgb565_to_yuv420(const unsigned char *src, unsigned char *dest, } } +void v4lconvert_y16_to_rgb24(const unsigned char *src, unsigned char *dest, + int width, int height) +{ + int j; + while (--height >= 0) { + for (j = 0; j < width; j++) { + *dest++ = *src; + *dest++ = *src; + *dest++ = *src; + src+=2; + } + } +} + +void v4lconvert_y16_to_yuv420(const unsigned char *src, unsigned char *dest, + const struct v4l2_format *src_fmt) +{ + int x, y; + + /* Y */ + for (y = 0; y < src_fmt->fmt.pix.height; y++) + for (x = 0; x < src_fmt->fmt.pix.width; x++){ + *dest++ = *src; + src+=2; + } + + /* Clear U/V */ + memset(dest, 0x80, src_fmt->fmt.pix.width * src_fmt->fmt.pix.height / 2); +} + void v4lconvert_grey_to_rgb24(const unsigned char *src, unsigned char *dest, int width, int height) { -- 1.7.10.4