video-infos : more informations displayed
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@ -3,7 +3,7 @@
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*/
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#include <stdio.h>
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#include <inttypes.h>
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#include <linux/videodev2.h>
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#include "v4l2_pr_structs.h"
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@ -27,17 +27,87 @@ switch(type) {
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return "???";
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}
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/* --------------------------------------------------------------------- */
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static void pr_capabilities(uint32_t caps)
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{
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fputs(" ", FP);
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if (caps & V4L2_CAP_VIDEO_CAPTURE) fputs("vcapt ", FP);
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if (caps & V4L2_CAP_VIDEO_OUTPUT) fputs("vout ", FP);
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if (caps & V4L2_CAP_VIDEO_OVERLAY) fputs("overlay ", FP);
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if (caps & V4L2_CAP_VBI_CAPTURE) fputs("vbicapt ", FP);
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if (caps & V4L2_CAP_VBI_OUTPUT) fputs("vbiout ", FP);
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/* to be continued */
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if (caps & V4L2_CAP_AUDIO) fputs("audio ", FP);
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if (caps & V4L2_CAP_SDR_CAPTURE) fputs("sdrcapt ", FP);
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if (caps & V4L2_CAP_EXT_PIX_FORMAT) fputs("extpix ", FP);
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if (caps & V4L2_CAP_SDR_OUTPUT) fputs("sdrout ", FP);
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if (caps & V4L2_CAP_READWRITE) fputs("rwsysc ", FP);
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if (caps & V4L2_CAP_ASYNCIO) fputs("asyncio ", FP);
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if (caps & V4L2_CAP_STREAMING) fputs("stream ", FP);
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fputs("\n", FP);
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}
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/* --------------------------------------------------------------------- */
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int pr_v4l2_capability(char *txt, struct v4l2_capability *ptr)
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{
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fprintf(FP, "-- v4l2_capability, %-15s %p\n", txt, ptr);
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fprintf(FP, " driver %s\n", ptr->driver);
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fprintf(FP, " card %s\n", ptr->card);
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fprintf(FP, " bus info %s\n", ptr->bus_info);
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fprintf(FP, " driver %s\n", ptr->driver);
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fprintf(FP, " card %s\n", ptr->card);
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fprintf(FP, " bus info %s\n", ptr->bus_info);
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fprintf(FP, " version %X\n", ptr->version);
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fprintf(FP, " capabilities %X\n", ptr->capabilities);
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fprintf(FP, " device caps %X\n", ptr->device_caps);
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fprintf(FP, " version 0x%X\n", ptr->version);
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fprintf(FP, " capabilities 0x%X\n", ptr->capabilities);
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pr_capabilities(ptr->capabilities);
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fprintf(FP, " device caps 0x%X\n", ptr->device_caps);
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return -1;
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}
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/* --------------------------------------------------------------------- */
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static char *str_input_type(int t)
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{
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switch (t) {
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case V4L2_INPUT_TYPE_TUNER: return "tuner";
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case V4L2_INPUT_TYPE_CAMERA: return "camera";
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case V4L2_INPUT_TYPE_TOUCH: return "touch";
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}
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return "???";
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}
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/* --------------------------------------------------------------------- */
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static void pr_input_status(uint32_t st)
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{
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if (st & V4L2_IN_ST_NO_POWER) fputs("nopower", FP);
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if (st & V4L2_IN_ST_NO_SIGNAL) fputs("nosignal", FP);
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if (st & V4L2_IN_ST_NO_COLOR) fputs("nocolor", FP);
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/* to be continued */
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}
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/* --------------------------------------------------------------------- */
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int pr_v4l2_input(char *txt, struct v4l2_input *ptr)
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{
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fprintf(FP, "-- v4l2_input, %-15s %p\n", txt, ptr);
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fprintf(FP, " index %d\n", ptr->index);
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fprintf(FP, " name %s\n", ptr->name);
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fprintf(FP, " type %d %s\n", ptr->type,
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str_input_type(ptr->type));
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fprintf(FP, " audioset 0x%X\n", ptr->audioset);
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fprintf(FP, " tuner 0x%X\n", ptr->tuner);
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/* XXX v4l2_std_id std; */
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fprintf(FP, " status %d\n", ptr->status);
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pr_input_status(ptr->status);
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fprintf(FP, " capabilities 0x%X\n", ptr->capabilities);
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return -1;
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}
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@ -6,7 +6,7 @@
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/* --------------------------------------------------------------------- */
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int pr_v4l2_capability(char *txt, struct v4l2_capability *ptr);
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int pr_v4l2_input(char *txt, struct v4l2_input *ptr);
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int pr_v4l2_format(char *txt, struct v4l2_format *ptr);
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int pr_v4l2_requestbuffers(char *txt, struct v4l2_requestbuffers *ptr);
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/* --------------------------------------------------------------------- */
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@ -18,13 +18,22 @@
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int verbosity;
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/* --------------------------------------------------------------------- */
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static int enum_input(char *txt, int k)
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{
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return -1;
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}
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/* --------------------------------------------------------------------- */
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int show_webcam_infos(char *devname, int k)
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{
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int vfd, foo;
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struct v4l2_capability cap;
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struct v4l2_format fmt;
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// struct v4l2_format fmt;
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struct v4l2_input input;
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// int index;
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// struct v4l2_requestbuffers reqbuf;
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@ -40,15 +49,21 @@ if (vfd < 0) {
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fprintf(stderr, "\topen %s -> %d\n", devname, vfd);
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memset(&cap, 0, sizeof(cap));
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foo = ioctl(vfd, VIDIOC_QUERYCAP, &cap);
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if (foo < 0) {
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perror("ioctl QUERYCAP");
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return -4;
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}
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pr_v4l2_capability(devname, &cap);
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if ( ! (cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
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fprintf("%s : no video capture\n", devname);
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memset(&input, 0, sizeof(input));
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if (-1 == ioctl(vfd, VIDIOC_ENUMINPUT, &input)) {
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perror("VIDIOC_ENUMINPUT");
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exit(EXIT_FAILURE);
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}
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pr_v4l2_input("input 0", &input);
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close(vfd);
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@ -95,7 +110,7 @@ while ((opt = getopt(argc, argv, "d:hK:lv")) != -1) {
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if (verbosity) fimg_print_version(0);
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foo = show_webcam_infos(device, K);
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fprintf(stderr, "\tshow_webcam_infos -> %d\n", foo);
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fprintf(stderr, "\n\tshow_webcam_infos -> %d\n", foo);
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return 0;
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}
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