Add n-camera support
This commit is contained in:
Martijn Braam
parent
77e99ed6e9
commit
926b98fec0
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@ -1,10 +1,10 @@
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[device]
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make=PINE64
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model=PinePhone
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csi=sun6i-csi
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[rear]
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driver=ov5640
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media-driver=sun6i-csi
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width=2592
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height=1944
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rate=15
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@ -22,6 +22,7 @@ iso-max=64000
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[front]
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driver=gc2145
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media-driver=sun6i-csi
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width=1280
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height=960
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rate=30
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@ -1,10 +1,10 @@
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[device]
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make=PINE64
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model=PinePhone
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csi=sun6i-csi
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[rear]
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driver=ov5640
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media-driver=sun6i-csi
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width=2592
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height=1944
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rate=15
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@ -22,6 +22,7 @@ iso-max=64000
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[front]
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driver=gc2145
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media-driver=sun6i-csi
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width=1280
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height=960
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rate=30
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@ -1,10 +1,10 @@
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[device]
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make=PINE64
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model=PinePhone
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csi=sun6i-csi
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[rear]
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driver=ov5640
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media-driver=sun6i-csi
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width=2592
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height=1944
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rate=15
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@ -22,6 +22,7 @@ iso-max=64000
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[front]
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driver=gc2145
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media-driver=sun6i-csi
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width=1280
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height=960
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rate=30
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@ -1,10 +1,10 @@
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[device]
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make=PINE64
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model=PinePhone
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csi=sun6i-csi
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[rear]
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driver=ov5640
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media-driver=sun6i-csi
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width=2592
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height=1944
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rate=15
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@ -22,6 +22,7 @@ iso-max=64000
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[front]
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driver=gc2145
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media-driver=sun6i-csi
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width=1280
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height=960
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rate=30
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374
main.c
374
main.c
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@ -20,6 +20,8 @@
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#include "ini.h"
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#include "quickdebayer.h"
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#define NUM_CAMERAS 5
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enum user_control {
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USER_CONTROL_ISO,
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USER_CONTROL_SHUTTER
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@ -33,9 +35,11 @@ struct buffer {
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};
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struct camerainfo {
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char cfg_name[100];
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int exists;
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char dev_name[260];
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char dev_fname[260];
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unsigned int entity_id;
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char dev[260];
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int width;
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int height;
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int rate;
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@ -44,6 +48,13 @@ struct camerainfo {
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int mbus;
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int fd;
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char media_dev_name[260];
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char media_dev_fname[260];
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char video_dev_fname[260];
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int media_fd;
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int video_fd;
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unsigned int interface_entity_id;
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float colormatrix[9];
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float forwardmatrix[9];
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int blacklevel;
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@ -62,6 +73,8 @@ struct camerainfo {
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int has_af_s;
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};
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struct camerainfo cameras[NUM_CAMERAS];
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static float colormatrix_srgb[] = {
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3.2409, -1.5373, -0.4986,
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-0.9692, 1.8759, 0.0415,
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@ -71,23 +84,16 @@ static float colormatrix_srgb[] = {
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struct buffer *buffers;
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static unsigned int n_buffers;
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struct camerainfo rear_cam;
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struct camerainfo front_cam;
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struct camerainfo current;
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// Camera interface
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static char *media_drv_name;
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static unsigned int interface_entity_id;
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static char dev_name[260];
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static int media_fd;
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static int video_fd;
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// General info
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static char *exif_make;
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static char *exif_model;
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// State
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static int ready = 0;
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static int capture = 0;
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static int current_is_rear = 1;
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static int current_cid = -1;
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static cairo_surface_t *surface = NULL;
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static cairo_surface_t *status_surface = NULL;
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static int preview_width = -1;
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@ -207,7 +213,7 @@ init_mmap(int fd)
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if (xioctl(fd, VIDIOC_REQBUFS, &req) == -1) {
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if (errno == EINVAL) {
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fprintf(stderr, "%s does not support memory mapping",
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dev_name);
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current.dev_name);
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exit(EXIT_FAILURE);
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} else {
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errno_exit("VIDIOC_REQBUFS");
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@ -216,7 +222,7 @@ init_mmap(int fd)
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if (req.count < 2) {
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fprintf(stderr, "Insufficient buffer memory on %s\n",
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dev_name);
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current.dev_name);
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exit(EXIT_FAILURE);
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}
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@ -471,7 +477,7 @@ init_device(int fd)
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if (xioctl(fd, VIDIOC_QUERYCAP, &cap) == -1) {
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if (errno == EINVAL) {
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fprintf(stderr, "%s is no V4L2 device\n",
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dev_name);
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current.dev_name);
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exit(EXIT_FAILURE);
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} else {
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errno_exit("VIDIOC_QUERYCAP");
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@ -480,13 +486,13 @@ init_device(int fd)
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if (!(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
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fprintf(stderr, "%s is no video capture device\n",
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dev_name);
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current.dev_name);
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exit(EXIT_FAILURE);
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}
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if (!(cap.capabilities & V4L2_CAP_STREAMING)) {
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fprintf(stderr, "%s does not support streaming i/o\n",
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dev_name);
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current.dev_name);
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exit(EXIT_FAILURE);
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}
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@ -885,13 +891,13 @@ get_frame()
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int r;
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FD_ZERO(&fds);
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FD_SET(video_fd, &fds);
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FD_SET(current.video_fd, &fds);
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/* Timeout. */
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tv.tv_sec = 2;
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tv.tv_usec = 0;
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r = select(video_fd + 1, &fds, NULL, NULL, &tv);
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r = select(current.video_fd + 1, &fds, NULL, NULL, &tv);
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if (r == -1) {
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if (EINTR == errno) {
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@ -903,7 +909,7 @@ get_frame()
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exit(EXIT_FAILURE);
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}
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if (read_frame(video_fd)) {
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if (read_frame(current.video_fd)) {
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break;
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}
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/* EAGAIN - continue select loop. */
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@ -924,12 +930,46 @@ config_ini_handler(void *user, const char *section, const char *name,
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const char *value)
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{
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struct camerainfo *cc;
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if (strcmp(section, "rear") == 0 || strcmp(section, "front") == 0) {
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if (strcmp(section, "rear") == 0) {
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cc = &rear_cam;
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int cid;
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int found;
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int first_free;
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if (strcmp(section, "device") == 0) {
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if (strcmp(name, "make") == 0) {
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exif_make = strdup(value);
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} else if (strcmp(name, "model") == 0) {
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exif_model = strdup(value);
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} else {
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cc = &front_cam;
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g_printerr("Unknown key '%s' in [device]\n", name);
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exit(1);
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}
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} else {
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found = 0;
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first_free = -1;
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for (int i=0; i<NUM_CAMERAS; i++) {
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if(cameras[i].exists == 1 && strcmp(cameras[i].cfg_name, section) == 0) {
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cid = i;
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found = 1;
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break;
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}
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if(first_free == -1 && cameras[i].exists != 1) {
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first_free = i;
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}
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}
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if (first_free == -1 && found == 0) {
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g_printerr("More cameras defined than NUM_CAMERAS\n");
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exit(1);
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}
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if (!found) {
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cid = first_free;
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strcpy(cameras[cid].cfg_name, section);
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cameras[cid].exists = 1;
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printf("Adding camera %s from config\n", section);
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}
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cc = &cameras[cid];
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if (strcmp(name, "width") == 0) {
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cc->width = strtoint(value, NULL, 10);
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} else if (strcmp(name, "height") == 0) {
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@ -957,6 +997,8 @@ config_ini_handler(void *user, const char *section, const char *name,
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}
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} else if (strcmp(name, "driver") == 0) {
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strcpy(cc->dev_name, value);
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} else if (strcmp(name, "media-driver") == 0) {
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strcpy(cc->media_dev_name, value);
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} else if (strcmp(name, "colormatrix") == 0) {
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sscanf(value, "%f,%f,%f,%f,%f,%f,%f,%f,%f",
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cc->colormatrix+0,
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@ -999,20 +1041,6 @@ config_ini_handler(void *user, const char *section, const char *name,
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g_printerr("Unknown key '%s' in [%s]\n", name, section);
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exit(1);
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}
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} else if (strcmp(section, "device") == 0) {
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if (strcmp(name, "csi") == 0) {
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media_drv_name = strdup(value);
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} else if (strcmp(name, "make") == 0) {
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exif_make = strdup(value);
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} else if (strcmp(name, "model") == 0) {
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exif_model = strdup(value);
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} else {
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g_printerr("Unknown key '%s' in [device]\n", name);
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exit(1);
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}
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} else {
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g_printerr("Unknown section '%s' in config file\n", section);
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exit(1);
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}
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return 1;
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}
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@ -1038,139 +1066,133 @@ find_dev_node(int maj, int min, char *fnbuf)
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}
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int
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setup_rear()
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setup_camera(int cid)
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{
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struct media_link_desc link = {0};
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// Kill existing links for cameras in the same graph
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for(int i=0; i<NUM_CAMERAS; i++) {
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if(!cameras[i].exists)
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continue;
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if(i == cid)
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continue;
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if(strcmp(cameras[i].media_dev_fname, cameras[cid].media_dev_fname) != 0)
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continue;
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// Disable the interface<->front link
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link.flags = 0;
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link.source.entity = front_cam.entity_id;
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link.source.index = 0;
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link.sink.entity = interface_entity_id;
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link.sink.index = 0;
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// Disable the interface<->front link
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link.flags = 0;
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link.source.entity = cameras[i].entity_id;
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link.source.index = 0;
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link.sink.entity = cameras[i].interface_entity_id;
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link.sink.index = 0;
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if (xioctl(media_fd, MEDIA_IOC_SETUP_LINK, &link) < 0) {
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g_printerr("Could not disable front camera link\n");
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return -1;
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if (xioctl(cameras[cid].media_fd, MEDIA_IOC_SETUP_LINK, &link) < 0) {
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g_printerr("Could not disable [%s] camera link\n", cameras[i].cfg_name);
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return -1;
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}
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}
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// Enable the interface<->rear link
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// Enable the interface<->sensor link
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link.flags = MEDIA_LNK_FL_ENABLED;
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link.source.entity = rear_cam.entity_id;
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link.source.entity = cameras[cid].entity_id;
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link.source.index = 0;
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link.sink.entity = interface_entity_id;
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link.sink.entity = cameras[cid].interface_entity_id;
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link.sink.index = 0;
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if (xioctl(media_fd, MEDIA_IOC_SETUP_LINK, &link) < 0) {
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g_printerr("Could not enable rear camera link\n");
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if (xioctl(cameras[cid].media_fd, MEDIA_IOC_SETUP_LINK, &link) < 0) {
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g_printerr("[%s] Could not enable camera link\n", cameras[cid].cfg_name);
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return -1;
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}
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current = rear_cam;
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current = cameras[cid];
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// Find camera node
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init_sensor(current.dev, current.width, current.height, current.mbus, current.rate);
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init_sensor(current.dev_fname, current.width, current.height, current.mbus, current.rate);
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return 0;
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}
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int
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setup_front()
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{
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struct media_link_desc link = {0};
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// Disable the interface<->rear link
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link.flags = 0;
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link.source.entity = rear_cam.entity_id;
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link.source.index = 0;
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link.sink.entity = interface_entity_id;
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link.sink.index = 0;
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if (xioctl(media_fd, MEDIA_IOC_SETUP_LINK, &link) < 0) {
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g_printerr("Could not disable rear camera link\n");
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return -1;
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}
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// Enable the interface<->rear link
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link.flags = MEDIA_LNK_FL_ENABLED;
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link.source.entity = front_cam.entity_id;
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link.source.index = 0;
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link.sink.entity = interface_entity_id;
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link.sink.index = 0;
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if (xioctl(media_fd, MEDIA_IOC_SETUP_LINK, &link) < 0) {
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g_printerr("Could not enable front camera link\n");
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return -1;
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}
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current = front_cam;
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// Find camera node
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init_sensor(current.dev, current.width, current.height, current.mbus, current.rate);
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return 0;
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}
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int
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find_cameras()
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find_camera(int cid)
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{
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struct media_entity_desc entity = {0};
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int ret;
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int found = 0;
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while (1) {
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entity.id = entity.id | MEDIA_ENT_ID_FLAG_NEXT;
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ret = xioctl(media_fd, MEDIA_IOC_ENUM_ENTITIES, &entity);
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if (ret < 0) {
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break;
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}
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if (strncmp(entity.name, front_cam.dev_name, strlen(front_cam.dev_name)) == 0) {
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front_cam.entity_id = entity.id;
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find_dev_node(entity.dev.major, entity.dev.minor, front_cam.dev);
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printf("Found front cam, is %s at %s\n", entity.name, front_cam.dev);
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found++;
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}
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if (strncmp(entity.name, rear_cam.dev_name, strlen(rear_cam.dev_name)) == 0) {
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rear_cam.entity_id = entity.id;
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find_dev_node(entity.dev.major, entity.dev.minor, rear_cam.dev);
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printf("Found rear cam, is %s at %s\n", entity.name, rear_cam.dev);
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found++;
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}
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if (entity.type == MEDIA_ENT_F_IO_V4L) {
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interface_entity_id = entity.id;
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find_dev_node(entity.dev.major, entity.dev.minor, dev_name);
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printf("Found v4l2 interface node at %s\n", dev_name);
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}
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}
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if (found < 2) {
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return -1;
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}
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return 0;
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}
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int
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find_media_fd()
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{
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DIR *d;
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struct dirent *dir;
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int fd;
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char fnbuf[261];
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struct media_device_info mdi = {0};
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int ret;
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int found_subdev = 0;
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int found_interface = 0;
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// find the /dev/media node for the camera media-driver
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d = opendir("/dev");
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while ((dir = readdir(d)) != NULL) {
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if (strncmp(dir->d_name, "media", 5) == 0) {
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sprintf(fnbuf, "/dev/%s", dir->d_name);
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fd = open(fnbuf, O_RDWR);
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xioctl(fd, MEDIA_IOC_DEVICE_INFO, &mdi);
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if (strcmp(mdi.driver, media_drv_name) == 0) {
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printf("Found media device: %s (%s)\n", fnbuf, mdi.driver);
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media_fd = fd;
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return 0;
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if (strcmp(mdi.driver, cameras[cid].media_dev_name) == 0) {
|
||||
printf("[%s] media device: %s (%s)\n", cameras[cid].cfg_name, fnbuf, mdi.driver);
|
||||
cameras[cid].media_fd = fd;
|
||||
goto find_camera_found_media;
|
||||
}
|
||||
close(fd);
|
||||
}
|
||||
}
|
||||
g_printerr("Could not find /dev/media* node matching '%s'\n", media_drv_name);
|
||||
g_printerr("Could not find /dev/media* node matching '%s'\n", cameras[cid].media_dev_name);
|
||||
return 0;
|
||||
|
||||
find_camera_found_media:
|
||||
// inspect the media node and find the sensor
|
||||
while (1) {
|
||||
entity.id = entity.id | MEDIA_ENT_ID_FLAG_NEXT;
|
||||
ret = xioctl(fd, MEDIA_IOC_ENUM_ENTITIES, &entity);
|
||||
if (ret < 0) {
|
||||
break;
|
||||
}
|
||||
if (!found_subdev && strncmp(entity.name, cameras[cid].dev_name, strlen(cameras[cid].dev_name)) == 0) {
|
||||
cameras[cid].entity_id = entity.id;
|
||||
find_dev_node(entity.dev.major, entity.dev.minor, cameras[cid].dev_fname);
|
||||
printf("[%s] subdev: %s (%s)\n", cameras[cid].cfg_name, cameras[cid].dev_fname, entity.name);
|
||||
found_subdev = 1;
|
||||
}
|
||||
if (!found_interface && entity.type == MEDIA_ENT_F_IO_V4L) {
|
||||
cameras[cid].interface_entity_id = entity.id;
|
||||
find_dev_node(entity.dev.major, entity.dev.minor, cameras[cid].video_dev_fname);
|
||||
printf("[%s] video: %s (%s)\n", cameras[cid].cfg_name, cameras[cid].video_dev_fname, entity.name);
|
||||
found_interface = 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (!found_subdev) {
|
||||
g_printerr("[%s] Could not find subdev '%s'\n", cameras[cid].cfg_name, cameras[cid].dev_name);
|
||||
return 0;
|
||||
}
|
||||
if (!found_interface) {
|
||||
g_printerr("[%s] Could not find interface node\n", cameras[cid].cfg_name);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int
|
||||
find_cameras()
|
||||
{
|
||||
int found_one = 0;
|
||||
for(int i=0; i<NUM_CAMERAS; i++) {
|
||||
if(!cameras[i].exists)
|
||||
continue;
|
||||
if(find_camera(i)) {
|
||||
found_one = 1;
|
||||
} else {
|
||||
cameras[i].exists = 0;
|
||||
}
|
||||
}
|
||||
return found_one;
|
||||
}
|
||||
|
||||
void
|
||||
on_open_last_clicked(GtkWidget *widget, gpointer user_data)
|
||||
{
|
||||
|
|
@ -1271,23 +1293,49 @@ on_error_close_clicked(GtkWidget *widget, gpointer user_data)
|
|||
void
|
||||
on_camera_switch_clicked(GtkWidget *widget, gpointer user_data)
|
||||
{
|
||||
stop_capturing(video_fd);
|
||||
close(current.fd);
|
||||
if (current_is_rear == 1) {
|
||||
setup_front();
|
||||
current_is_rear = 0;
|
||||
} else {
|
||||
setup_rear();
|
||||
current_is_rear = 1;
|
||||
int found_next = 0;
|
||||
int old_cid = current_cid;
|
||||
int next_cid = -1;
|
||||
for(int i=current_cid; i<NUM_CAMERAS; i++) {
|
||||
if(i == current_cid)
|
||||
continue;
|
||||
if(!cameras[i].exists)
|
||||
continue;
|
||||
|
||||
found_next = 1;
|
||||
next_cid = i;
|
||||
}
|
||||
close(video_fd);
|
||||
video_fd = open(dev_name, O_RDWR);
|
||||
if (video_fd == -1) {
|
||||
g_printerr("Error opening video device: %s\n", dev_name);
|
||||
if(!found_next) {
|
||||
for(int i=0; i<current_cid; i++) {
|
||||
if(i == current_cid)
|
||||
continue;
|
||||
if(!cameras[i].exists)
|
||||
continue;
|
||||
|
||||
found_next = 1;
|
||||
next_cid = i;
|
||||
}
|
||||
}
|
||||
if(!found_next) {
|
||||
g_printerr("Could not find a candidate camera to switch to\n");
|
||||
return;
|
||||
}
|
||||
init_device(video_fd);
|
||||
start_capturing(video_fd);
|
||||
|
||||
printf("Switching from [%s] to [%s]\n", cameras[current_cid].cfg_name, cameras[next_cid].cfg_name);
|
||||
|
||||
stop_capturing(cameras[current_cid].video_fd);
|
||||
close(cameras[current_cid].fd);
|
||||
setup_camera(next_cid);
|
||||
close(cameras[old_cid].video_fd);
|
||||
cameras[next_cid].video_fd = open(cameras[next_cid].video_dev_fname, O_RDWR);
|
||||
if (cameras[next_cid].video_fd == -1) {
|
||||
g_printerr("Error opening video device: %s\n", cameras[next_cid].video_dev_fname);
|
||||
return;
|
||||
}
|
||||
|
||||
current_cid = next_cid;
|
||||
init_device(cameras[current_cid].video_fd);
|
||||
start_capturing(cameras[current_cid].video_fd);
|
||||
}
|
||||
|
||||
void
|
||||
|
|
@ -1544,31 +1592,33 @@ main(int argc, char *argv[])
|
|||
g_printerr("Could not parse config file\n");
|
||||
return 1;
|
||||
}
|
||||
if (find_media_fd() == -1) {
|
||||
g_printerr("Could not find the media node\n");
|
||||
show_error("Could not find the media node");
|
||||
goto failed;
|
||||
}
|
||||
if (find_cameras() == -1) {
|
||||
if (find_cameras() == 0) {
|
||||
g_printerr("Could not find the cameras\n");
|
||||
show_error("Could not find the cameras");
|
||||
goto failed;
|
||||
}
|
||||
setup_rear();
|
||||
|
||||
int fd = open(dev_name, O_RDWR);
|
||||
if (fd == -1) {
|
||||
g_printerr("Error opening video device: %s\n", dev_name);
|
||||
show_error("Error opening the video device");
|
||||
goto failed;
|
||||
// Setup first defined camera
|
||||
for(int i=0;i<NUM_CAMERAS; i++) {
|
||||
if(cameras[i].exists){
|
||||
setup_camera(i);
|
||||
current_cid = i;
|
||||
|
||||
cameras[i].video_fd = open(cameras[i].video_dev_fname, O_RDWR);
|
||||
if (cameras[i].video_fd == -1) {
|
||||
g_printerr("Error opening video device: %s\n", cameras[i].video_dev_fname);
|
||||
show_error("Error opening the video device");
|
||||
goto failed;
|
||||
}
|
||||
if(init_device(cameras[i].video_fd) < 0){
|
||||
goto failed;
|
||||
}
|
||||
start_capturing(cameras[i].video_fd);
|
||||
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
video_fd = fd;
|
||||
|
||||
if(init_device(fd) < 0){
|
||||
goto failed;
|
||||
}
|
||||
start_capturing(fd);
|
||||
|
||||
failed:
|
||||
printf("window show\n");
|
||||
|
|
|
|||
Loading…
Reference in New Issue