diff options
Diffstat (limited to 'v4l2-jpeg-codec-test/test-jpeg.c')
| -rw-r--r-- | v4l2-jpeg-codec-test/test-jpeg.c | 100 |
1 files changed, 98 insertions, 2 deletions
diff --git a/v4l2-jpeg-codec-test/test-jpeg.c b/v4l2-jpeg-codec-test/test-jpeg.c index 6acb204..2e17057 100644 --- a/v4l2-jpeg-codec-test/test-jpeg.c +++ b/v4l2-jpeg-codec-test/test-jpeg.c @@ -68,9 +68,13 @@ enum pix_format { FMT_JPEG, FMT_RGB565, + FMT_RGB565X, FMT_RGB32, + FMT_BGR32, FMT_YUYV, FMT_YVYU, + FMT_UYVY, + FMT_VYUY, FMT_NV24, FMT_NV42, FMT_NV16, @@ -93,7 +97,8 @@ int mode = ENCODE; const char *input_filename; const char *output_filename; int video_node = 5; -int width = 0, height = 0; +int width = 0, height = 0, crop_left = 0, crop_top = 0, crop_width = 0, crop_height = 0; +float scale_ratio = 1.0; int fourcc; static __u32 get_px_format_by_id(enum pix_format px_fmt) @@ -103,12 +108,20 @@ static __u32 get_px_format_by_id(enum pix_format px_fmt) return V4L2_PIX_FMT_JPEG; case FMT_RGB565: return V4L2_PIX_FMT_RGB565; + case FMT_RGB565X: + return V4L2_PIX_FMT_RGB565X; case FMT_RGB32: return V4L2_PIX_FMT_RGB32; + case FMT_BGR32: + return V4L2_PIX_FMT_BGR32; case FMT_YUYV: return V4L2_PIX_FMT_YUYV; case FMT_YVYU: return V4L2_PIX_FMT_YVYU; + case FMT_UYVY: + return V4L2_PIX_FMT_UYVY; + case FMT_VYUY: + return V4L2_PIX_FMT_VYUY; case FMT_NV24: return V4L2_PIX_FMT_NV24; case FMT_NV42: @@ -139,15 +152,27 @@ static void get_format_name_by_fourcc(unsigned int fourcc, char *fmt_name) case V4L2_PIX_FMT_RGB565: strcpy(fmt_name, "V4L2_PIX_FMT_RGB565"); break; + case V4L2_PIX_FMT_RGB565X: + strcpy(fmt_name, "V4L2_PIX_FMT_RGB565X"); + break; case V4L2_PIX_FMT_RGB32: strcpy(fmt_name, "V4L2_PIX_FMT_RGB32"); break; + case V4L2_PIX_FMT_BGR32: + strcpy(fmt_name, "V4L2_PIX_FMT_BGR32"); + break; case V4L2_PIX_FMT_YUYV: strcpy(fmt_name, "V4L2_PIX_FMT_YUYV"); break; case V4L2_PIX_FMT_YVYU: strcpy(fmt_name, "V4L2_PIX_FMT_YVYU"); break; + case V4L2_PIX_FMT_UYVY: + strcpy(fmt_name, "V4L2_PIX_FMT_UYVY"); + break; + case V4L2_PIX_FMT_VYUY: + strcpy(fmt_name, "V4L2_PIX_FMT_VYUY"); + break; case V4L2_PIX_FMT_NV24: strcpy(fmt_name, "V4L2_PIX_FMT_NV24"); break; @@ -280,6 +305,11 @@ void print_usage (void) "-v[VIDEO NODE NUMBER]\n" "-w[INPUT IMAGE WIDTH]\n" "-h[INPUT IMAGE HEIGHT]\n" + "-l[JPEG CROP LEFT]\n" + "-t[JPEG CROP TOP]\n" + "-x[JPEG CROP WIDTH]\n" + "-y[JPEG CROP HEIGHT]\n" + "-s[SCALE RATIO]\n" "-r[COLOUR FORMAT: 1..12]\n" "-c[COMPRESSION LEVEL: 0..3]\n" "-p[CHROMA SUBSAMPLING: 0..3]\n"); @@ -290,7 +320,7 @@ static int parse_args(int argc, char *argv[]) int c; opterr = 0; - while ((c = getopt (argc, argv, "m:f:o:v:w:h:r:c:p:")) != -1) { + while ((c = getopt (argc, argv, "m:f:o:v:w:h:r:s:t:c:p:l:t:x:y:")) != -1) { debug("c: %c, optarg: %s\n", c, optarg); switch (c) { case 'm': @@ -311,6 +341,9 @@ static int parse_args(int argc, char *argv[]) case 'h': height = atoi(optarg); break; + case 's': + scale_ratio = atof(optarg); + break; case 'r': fourcc = atoi(optarg); break; @@ -320,6 +353,18 @@ static int parse_args(int argc, char *argv[]) case 'p': subsampling = atoi(optarg); break; + case 'l': + crop_left = atoi(optarg); + break; + case 't': + crop_top = atoi(optarg); + break; + case 'x': + crop_width = atoi(optarg); + break; + case 'y': + crop_height = atoi(optarg); + break; case '?': print_usage (); return -1; @@ -438,6 +483,27 @@ int main(int argc, char *argv[]) width = fmt.fmt.pix.width; height = fmt.fmt.pix.height; printf("input JPEG dimensions: %dx%d\n", width, height); + + /* apply scaling */ + struct v4l2_selection sel = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, + .target = V4L2_SEL_TGT_COMPOSE_BOUNDS, + }; + struct v4l2_rect r; + + ret = ioctl(vid_fd, VIDIOC_G_SELECTION, &sel); + perror_exit(ret != 0, "ioctl"); + + r.width = width * scale_ratio; + r.height = height * scale_ratio; + r.left = 0; + r.top = 0; + sel.r = r; + sel.target = V4L2_SEL_TGT_COMPOSE; + sel.flags = V4L2_SEL_FLAG_LE; + ret = ioctl(vid_fd, VIDIOC_S_SELECTION, &sel); + if (ret) + printf("jpeg scaling failed\n"); } /* set output format */ @@ -484,6 +550,26 @@ int main(int argc, char *argv[]) ret = ioctl (vid_fd, VIDIOC_S_EXT_CTRLS, &ctrls); perror_exit (ret != 0, "VIDIOC_S_CTRL v4l2_ioctl"); + + /* apply cropping */ + struct v4l2_selection sel = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, + .target = V4L2_SEL_TGT_CROP_BOUNDS, + }; + struct v4l2_rect r; + + r.width = crop_width > 0 ? crop_width : width; + r.height = crop_height > 0 ? crop_height : height; + r.left = crop_left; + r.top = crop_top; + sel.r = r; + sel.target = V4L2_SEL_TGT_CROP; + sel.flags = V4L2_SEL_FLAG_LE; + ret = ioctl(vid_fd, VIDIOC_S_SELECTION, &sel); + if (ret) + printf("raw image cropping failed\n"); + else + printf("cropped rectangle: %dx%d\n", sel.r.width, sel.r.height); } /* request output buffer */ @@ -544,6 +630,16 @@ int main(int argc, char *argv[]) get_subsampling_by_id(ctrl.value, subs_name); printf("decoded JPEG subsampling: %s\n", subs_name); + + /* get active area of decoded image */ + struct v4l2_selection sel = { + .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, + .target = V4L2_SEL_TGT_COMPOSE_BOUNDS, + }; + + ret = ioctl(vid_fd, VIDIOC_G_SELECTION, &sel); + perror_exit(ret != 0, "ioctl"); + printf("active area dimensions: %dx%d\n", sel.r.width, sel.r.height); } /* generate output file */ |