2020-10-24 05:36:28 +02:00
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#include "camera.h"
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#include <assert.h>
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#include <errno.h>
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#include <glib.h>
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2020-11-25 14:31:52 +01:00
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#include <stdio.h>
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2020-10-24 05:36:28 +02:00
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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2021-04-07 16:16:17 +02:00
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#include <unistd.h>
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2020-10-24 05:36:28 +02:00
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#define MAX_VIDEO_BUFFERS 20
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static const char *pixel_format_names[MP_PIXEL_FMT_MAX] = {
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2020-12-06 15:44:31 +01:00
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"unsupported", "BGGR8", "GBRG8", "GRBG8", "RGGB8", "BGGR10P",
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"GBRG10P", "GRBG10P", "RGGB10P", "UYVY", "YUYV",
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2020-10-24 05:36:28 +02:00
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};
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2020-12-06 15:44:31 +01:00
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const char *
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mp_pixel_format_to_str(uint32_t pixel_format)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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g_return_val_if_fail(pixel_format < MP_PIXEL_FMT_MAX, "INVALID");
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return pixel_format_names[pixel_format];
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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MPPixelFormat
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mp_pixel_format_from_str(const char *name)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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for (MPPixelFormat i = 0; i < MP_PIXEL_FMT_MAX; ++i) {
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if (strcasecmp(pixel_format_names[i], name) == 0) {
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return i;
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}
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}
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g_return_val_if_reached(MP_PIXEL_FMT_UNSUPPORTED);
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2020-10-24 05:36:28 +02:00
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}
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static const uint32_t pixel_format_v4l_pixel_formats[MP_PIXEL_FMT_MAX] = {
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2020-12-06 15:44:31 +01:00
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0,
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V4L2_PIX_FMT_SBGGR8,
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V4L2_PIX_FMT_SGBRG8,
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V4L2_PIX_FMT_SGRBG8,
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V4L2_PIX_FMT_SRGGB8,
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V4L2_PIX_FMT_SBGGR10P,
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V4L2_PIX_FMT_SGBRG10P,
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V4L2_PIX_FMT_SGRBG10P,
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V4L2_PIX_FMT_SRGGB10P,
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V4L2_PIX_FMT_UYVY,
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V4L2_PIX_FMT_YUYV,
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2020-10-24 05:36:28 +02:00
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};
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2020-12-06 15:44:31 +01:00
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uint32_t
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mp_pixel_format_to_v4l_pixel_format(MPPixelFormat pixel_format)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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g_return_val_if_fail(pixel_format < MP_PIXEL_FMT_MAX, 0);
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return pixel_format_v4l_pixel_formats[pixel_format];
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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MPPixelFormat
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mp_pixel_format_from_v4l_pixel_format(uint32_t v4l_pixel_format)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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for (MPPixelFormat i = 0; i < MP_PIXEL_FMT_MAX; ++i) {
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if (pixel_format_v4l_pixel_formats[i] == v4l_pixel_format) {
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return i;
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}
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}
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return MP_PIXEL_FMT_UNSUPPORTED;
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2020-10-24 05:36:28 +02:00
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}
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static const uint32_t pixel_format_v4l_bus_codes[MP_PIXEL_FMT_MAX] = {
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0,
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MEDIA_BUS_FMT_SBGGR8_1X8,
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MEDIA_BUS_FMT_SGBRG8_1X8,
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MEDIA_BUS_FMT_SGRBG8_1X8,
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MEDIA_BUS_FMT_SRGGB8_1X8,
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MEDIA_BUS_FMT_SBGGR10_1X10,
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MEDIA_BUS_FMT_SGBRG10_1X10,
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MEDIA_BUS_FMT_SGRBG10_1X10,
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MEDIA_BUS_FMT_SRGGB10_1X10,
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MEDIA_BUS_FMT_UYVY8_2X8,
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MEDIA_BUS_FMT_YUYV8_2X8,
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2020-10-24 05:36:28 +02:00
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};
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2020-12-06 15:44:31 +01:00
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uint32_t
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mp_pixel_format_to_v4l_bus_code(MPPixelFormat pixel_format)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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g_return_val_if_fail(pixel_format < MP_PIXEL_FMT_MAX, 0);
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return pixel_format_v4l_bus_codes[pixel_format];
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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MPPixelFormat
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mp_pixel_format_from_v4l_bus_code(uint32_t v4l_bus_code)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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for (MPPixelFormat i = 0; i < MP_PIXEL_FMT_MAX; ++i) {
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if (pixel_format_v4l_bus_codes[i] == v4l_bus_code) {
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return i;
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}
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}
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return MP_PIXEL_FMT_UNSUPPORTED;
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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uint32_t
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mp_pixel_format_bits_per_pixel(MPPixelFormat pixel_format)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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g_return_val_if_fail(pixel_format < MP_PIXEL_FMT_MAX, 0);
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switch (pixel_format) {
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case MP_PIXEL_FMT_BGGR8:
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case MP_PIXEL_FMT_GBRG8:
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case MP_PIXEL_FMT_GRBG8:
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case MP_PIXEL_FMT_RGGB8:
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return 8;
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case MP_PIXEL_FMT_BGGR10P:
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case MP_PIXEL_FMT_GBRG10P:
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case MP_PIXEL_FMT_GRBG10P:
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case MP_PIXEL_FMT_RGGB10P:
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return 10;
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case MP_PIXEL_FMT_UYVY:
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case MP_PIXEL_FMT_YUYV:
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return 16;
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default:
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return 0;
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}
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2020-11-25 14:31:52 +01:00
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}
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2020-12-06 15:44:31 +01:00
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uint32_t
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mp_pixel_format_width_to_bytes(MPPixelFormat pixel_format, uint32_t width)
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2020-11-25 14:31:52 +01:00
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{
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2020-12-06 15:44:31 +01:00
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uint32_t bits_per_pixel = mp_pixel_format_bits_per_pixel(pixel_format);
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uint64_t bits_per_width = width * (uint64_t)bits_per_pixel;
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2020-11-25 14:31:52 +01:00
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2020-12-06 15:44:31 +01:00
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uint64_t remainder = bits_per_width % 8;
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if (remainder == 0)
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return bits_per_width / 8;
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2020-11-25 14:31:52 +01:00
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2020-12-06 15:44:31 +01:00
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return (bits_per_width + 8 - remainder) / 8;
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2020-11-25 14:31:52 +01:00
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}
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2020-12-06 15:44:31 +01:00
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uint32_t
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mp_pixel_format_width_to_colors(MPPixelFormat pixel_format, uint32_t width)
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2020-11-25 14:31:52 +01:00
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{
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2020-12-06 15:44:31 +01:00
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g_return_val_if_fail(pixel_format < MP_PIXEL_FMT_MAX, 0);
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switch (pixel_format) {
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case MP_PIXEL_FMT_BGGR8:
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case MP_PIXEL_FMT_GBRG8:
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case MP_PIXEL_FMT_GRBG8:
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case MP_PIXEL_FMT_RGGB8:
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return width / 2;
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case MP_PIXEL_FMT_BGGR10P:
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case MP_PIXEL_FMT_GBRG10P:
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case MP_PIXEL_FMT_GRBG10P:
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case MP_PIXEL_FMT_RGGB10P:
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return width / 2 * 5;
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case MP_PIXEL_FMT_UYVY:
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case MP_PIXEL_FMT_YUYV:
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return width;
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default:
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return 0;
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}
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2020-11-25 14:31:52 +01:00
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}
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2020-12-06 15:44:31 +01:00
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uint32_t
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mp_pixel_format_height_to_colors(MPPixelFormat pixel_format, uint32_t height)
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2020-11-25 14:31:52 +01:00
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{
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2020-12-06 15:44:31 +01:00
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g_return_val_if_fail(pixel_format < MP_PIXEL_FMT_MAX, 0);
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switch (pixel_format) {
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case MP_PIXEL_FMT_BGGR8:
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case MP_PIXEL_FMT_GBRG8:
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case MP_PIXEL_FMT_GRBG8:
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case MP_PIXEL_FMT_RGGB8:
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case MP_PIXEL_FMT_BGGR10P:
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case MP_PIXEL_FMT_GBRG10P:
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case MP_PIXEL_FMT_GRBG10P:
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case MP_PIXEL_FMT_RGGB10P:
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return height / 2;
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case MP_PIXEL_FMT_UYVY:
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case MP_PIXEL_FMT_YUYV:
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return height;
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default:
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return 0;
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}
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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bool
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mp_camera_mode_is_equivalent(const MPCameraMode *m1, const MPCameraMode *m2)
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{
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return m1->pixel_format == m2->pixel_format &&
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m1->frame_interval.numerator == m2->frame_interval.numerator &&
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m1->frame_interval.denominator == m2->frame_interval.denominator &&
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m1->width == m2->width && m1->height == m2->height;
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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static void
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errno_printerr(const char *s)
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2020-11-26 12:23:18 +01:00
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{
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2020-12-06 15:44:31 +01:00
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g_printerr("MPCamera: %s error %d, %s\n", s, errno, strerror(errno));
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2020-11-26 12:23:18 +01:00
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}
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2020-12-06 15:44:31 +01:00
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static int
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xioctl(int fd, int request, void *arg)
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2020-11-26 12:23:18 +01:00
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{
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2020-12-06 15:44:31 +01:00
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int r;
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do {
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r = ioctl(fd, request, arg);
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} while (r == -1 && errno == EINTR);
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return r;
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2020-11-26 12:23:18 +01:00
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}
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2020-10-24 05:36:28 +02:00
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struct video_buffer {
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uint32_t length;
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uint8_t *data;
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int fd;
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2020-10-24 05:36:28 +02:00
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};
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struct _MPCamera {
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2020-12-06 15:44:31 +01:00
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int video_fd;
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int subdev_fd;
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2020-12-06 15:44:31 +01:00
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bool has_set_mode;
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MPCameraMode current_mode;
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2020-12-06 15:44:31 +01:00
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struct video_buffer buffers[MAX_VIDEO_BUFFERS];
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uint32_t num_buffers;
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2020-11-26 12:23:18 +01:00
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2020-12-06 15:44:31 +01:00
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bool use_mplane;
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};
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2020-12-06 15:44:31 +01:00
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MPCamera *
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mp_camera_new(int video_fd, int subdev_fd)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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g_return_val_if_fail(video_fd != -1, NULL);
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// Query capabilities
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struct v4l2_capability cap;
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if (xioctl(video_fd, VIDIOC_QUERYCAP, &cap) == -1) {
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return NULL;
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}
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// Check whether this is a video capture device
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bool use_mplane;
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if (cap.capabilities & V4L2_CAP_VIDEO_CAPTURE_MPLANE) {
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use_mplane = true;
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printf("!!\n");
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} else if (cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) {
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use_mplane = false;
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} else {
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return NULL;
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}
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MPCamera *camera = malloc(sizeof(MPCamera));
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camera->video_fd = video_fd;
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camera->subdev_fd = subdev_fd;
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camera->has_set_mode = false;
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camera->num_buffers = 0;
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camera->use_mplane = use_mplane;
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return camera;
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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void
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mp_camera_free(MPCamera *camera)
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{
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2020-12-06 15:44:31 +01:00
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g_warn_if_fail(camera->num_buffers == 0);
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if (camera->num_buffers != 0) {
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mp_camera_stop_capture(camera);
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}
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2020-10-24 05:36:28 +02:00
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2020-12-06 15:44:31 +01:00
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free(camera);
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}
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2020-12-06 15:44:31 +01:00
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bool
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mp_camera_is_subdev(MPCamera *camera)
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{
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2020-12-06 15:44:31 +01:00
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return camera->subdev_fd != -1;
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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int
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mp_camera_get_video_fd(MPCamera *camera)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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return camera->video_fd;
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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int
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mp_camera_get_subdev_fd(MPCamera *camera)
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2020-10-24 05:36:28 +02:00
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{
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2020-12-06 15:44:31 +01:00
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return camera->subdev_fd;
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2020-10-24 05:36:28 +02:00
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}
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2020-12-06 15:44:31 +01:00
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static bool
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camera_mode_impl(MPCamera *camera, int request, MPCameraMode *mode)
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2020-10-24 05:36:28 +02:00
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{
|
2020-12-06 15:44:31 +01:00
|
|
|
uint32_t pixfmt = mp_pixel_format_from_v4l_pixel_format(mode->pixel_format);
|
|
|
|
struct v4l2_format fmt = {};
|
|
|
|
if (camera->use_mplane) {
|
|
|
|
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
|
|
|
fmt.fmt.pix_mp.width = mode->width;
|
|
|
|
fmt.fmt.pix_mp.height = mode->height;
|
|
|
|
fmt.fmt.pix_mp.pixelformat = pixfmt;
|
|
|
|
fmt.fmt.pix_mp.field = V4L2_FIELD_ANY;
|
|
|
|
} else {
|
|
|
|
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
fmt.fmt.pix.width = mode->width;
|
|
|
|
fmt.fmt.pix.height = mode->height;
|
|
|
|
fmt.fmt.pix.pixelformat = pixfmt;
|
|
|
|
fmt.fmt.pix.field = V4L2_FIELD_ANY;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (xioctl(camera->video_fd, request, &fmt) == -1) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (camera->use_mplane) {
|
|
|
|
mode->width = fmt.fmt.pix_mp.width;
|
|
|
|
mode->height = fmt.fmt.pix_mp.height;
|
|
|
|
mode->pixel_format = mp_pixel_format_from_v4l_pixel_format(
|
|
|
|
fmt.fmt.pix_mp.pixelformat);
|
|
|
|
} else {
|
|
|
|
mode->width = fmt.fmt.pix.width;
|
|
|
|
mode->height = fmt.fmt.pix.height;
|
|
|
|
mode->pixel_format = mp_pixel_format_from_v4l_pixel_format(
|
|
|
|
fmt.fmt.pix.pixelformat);
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_try_mode(MPCamera *camera, MPCameraMode *mode)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
if (!camera_mode_impl(camera, VIDIOC_TRY_FMT, mode)) {
|
|
|
|
errno_printerr("VIDIOC_S_FMT");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return true;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
const MPCameraMode *
|
|
|
|
mp_camera_get_mode(const MPCamera *camera)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
return &camera->current_mode;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_set_mode(MPCamera *camera, MPCameraMode *mode)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
// Set the mode in the subdev the camera is one
|
|
|
|
if (mp_camera_is_subdev(camera)) {
|
|
|
|
struct v4l2_subdev_frame_interval interval = {};
|
|
|
|
interval.pad = 0;
|
|
|
|
interval.interval = mode->frame_interval;
|
|
|
|
if (xioctl(camera->subdev_fd, VIDIOC_SUBDEV_S_FRAME_INTERVAL,
|
|
|
|
&interval) == -1) {
|
|
|
|
errno_printerr("VIDIOC_SUBDEV_S_FRAME_INTERVAL");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool did_set_frame_rate = interval.interval.numerator ==
|
|
|
|
mode->frame_interval.numerator &&
|
|
|
|
interval.interval.denominator ==
|
|
|
|
mode->frame_interval.denominator;
|
|
|
|
|
|
|
|
struct v4l2_subdev_format fmt = {};
|
|
|
|
fmt.pad = 0;
|
|
|
|
fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
|
|
|
|
fmt.format.width = mode->width;
|
|
|
|
fmt.format.height = mode->height;
|
|
|
|
fmt.format.code =
|
|
|
|
mp_pixel_format_to_v4l_bus_code(mode->pixel_format);
|
|
|
|
fmt.format.field = V4L2_FIELD_ANY;
|
|
|
|
if (xioctl(camera->subdev_fd, VIDIOC_SUBDEV_S_FMT, &fmt) == -1) {
|
|
|
|
errno_printerr("VIDIOC_SUBDEV_S_FMT");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Some drivers like ov5640 don't allow you to set the frame format with
|
|
|
|
// too high a frame-rate, but that means the frame-rate won't be set
|
|
|
|
// after the format change. So we need to try again here if we didn't
|
|
|
|
// succeed before. Ideally we'd be able to set both at once.
|
|
|
|
if (!did_set_frame_rate) {
|
|
|
|
interval.interval = mode->frame_interval;
|
|
|
|
if (xioctl(camera->subdev_fd, VIDIOC_SUBDEV_S_FRAME_INTERVAL,
|
|
|
|
&interval) == -1) {
|
|
|
|
errno_printerr("VIDIOC_SUBDEV_S_FRAME_INTERVAL");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Update the mode
|
|
|
|
mode->pixel_format =
|
|
|
|
mp_pixel_format_from_v4l_bus_code(fmt.format.code);
|
|
|
|
mode->frame_interval = interval.interval;
|
|
|
|
mode->width = fmt.format.width;
|
|
|
|
mode->height = fmt.format.height;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Set the mode for the video device
|
|
|
|
{
|
|
|
|
if (!camera_mode_impl(camera, VIDIOC_S_FMT, mode)) {
|
|
|
|
errno_printerr("VIDIOC_S_FMT");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
camera->has_set_mode = true;
|
|
|
|
camera->current_mode = *mode;
|
|
|
|
|
|
|
|
return true;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_start_capture(MPCamera *camera)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
g_return_val_if_fail(camera->has_set_mode, false);
|
|
|
|
g_return_val_if_fail(camera->num_buffers == 0, false);
|
|
|
|
|
|
|
|
enum v4l2_buf_type buftype = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
if (camera->use_mplane) {
|
|
|
|
buftype = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Start by requesting buffers
|
|
|
|
struct v4l2_requestbuffers req = {};
|
|
|
|
req.count = MAX_VIDEO_BUFFERS;
|
|
|
|
req.type = buftype;
|
|
|
|
req.memory = V4L2_MEMORY_MMAP;
|
|
|
|
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_REQBUFS, &req) == -1) {
|
|
|
|
errno_printerr("VIDIOC_REQBUFS");
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (req.count < 2) {
|
|
|
|
g_printerr(
|
|
|
|
"Insufficient buffer memory. Only %d buffers available.\n",
|
|
|
|
req.count);
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (uint32_t i = 0; i < req.count; ++i) {
|
|
|
|
// Query each buffer and mmap it
|
|
|
|
struct v4l2_buffer buf = {
|
|
|
|
.type = buftype,
|
|
|
|
.memory = V4L2_MEMORY_MMAP,
|
|
|
|
.index = i,
|
|
|
|
};
|
|
|
|
|
|
|
|
struct v4l2_plane planes[1];
|
|
|
|
if (camera->use_mplane) {
|
|
|
|
buf.m.planes = planes;
|
|
|
|
buf.length = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_QUERYBUF, &buf) == -1) {
|
|
|
|
errno_printerr("VIDIOC_QUERYBUF");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (camera->use_mplane) {
|
|
|
|
camera->buffers[i].length = planes[0].length;
|
|
|
|
camera->buffers[i].data =
|
|
|
|
mmap(NULL, planes[0].length, PROT_READ, MAP_SHARED,
|
|
|
|
camera->video_fd, planes[0].m.mem_offset);
|
|
|
|
} else {
|
|
|
|
camera->buffers[i].length = buf.length;
|
|
|
|
camera->buffers[i].data =
|
|
|
|
mmap(NULL, buf.length, PROT_READ, MAP_SHARED,
|
|
|
|
camera->video_fd, buf.m.offset);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (camera->buffers[i].data == MAP_FAILED) {
|
|
|
|
errno_printerr("mmap");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2021-04-07 16:16:17 +02:00
|
|
|
struct v4l2_exportbuffer expbuf = {
|
|
|
|
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
|
|
|
|
.index = i,
|
|
|
|
};
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_EXPBUF, &expbuf) == -1) {
|
|
|
|
errno_printerr("VIDIOC_EXPBUF");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
camera->buffers[i].fd = expbuf.fd;
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
++camera->num_buffers;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (camera->num_buffers != req.count) {
|
|
|
|
g_printerr("Unable to map all buffers\n");
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (uint32_t i = 0; i < camera->num_buffers; ++i) {
|
|
|
|
struct v4l2_buffer buf = {
|
|
|
|
.type = buftype,
|
|
|
|
.memory = V4L2_MEMORY_MMAP,
|
|
|
|
.index = i,
|
|
|
|
};
|
|
|
|
|
|
|
|
struct v4l2_plane planes[1];
|
|
|
|
if (camera->use_mplane) {
|
|
|
|
buf.m.planes = planes;
|
|
|
|
buf.length = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Queue the buffer for capture
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_QBUF, &buf) == -1) {
|
|
|
|
errno_printerr("VIDIOC_QBUF");
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// Start capture
|
|
|
|
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_STREAMON, &type) == -1) {
|
|
|
|
errno_printerr("VIDIOC_STREAMON");
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
2020-10-24 05:36:28 +02:00
|
|
|
|
|
|
|
error:
|
2020-12-06 15:44:31 +01:00
|
|
|
// Unmap any mapped buffers
|
|
|
|
assert(camera->num_buffers <= MAX_VIDEO_BUFFERS);
|
|
|
|
for (uint32_t i = 0; i < camera->num_buffers; ++i) {
|
|
|
|
if (munmap(camera->buffers[i].data, camera->buffers[i].length) ==
|
|
|
|
-1) {
|
|
|
|
errno_printerr("munmap");
|
|
|
|
}
|
2021-04-07 16:16:17 +02:00
|
|
|
|
|
|
|
if (close(camera->buffers[i].fd) == -1) {
|
|
|
|
errno_printerr("close");
|
|
|
|
}
|
2020-12-06 15:44:31 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
// Reset allocated buffers
|
|
|
|
{
|
|
|
|
struct v4l2_requestbuffers req = {};
|
|
|
|
req.count = 0;
|
|
|
|
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
req.memory = V4L2_MEMORY_MMAP;
|
|
|
|
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_REQBUFS, &req) == -1) {
|
|
|
|
errno_printerr("VIDIOC_REQBUFS");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_stop_capture(MPCamera *camera)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
g_return_val_if_fail(camera->num_buffers > 0, false);
|
|
|
|
|
|
|
|
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_STREAMOFF, &type) == -1) {
|
|
|
|
errno_printerr("VIDIOC_STREAMOFF");
|
|
|
|
}
|
|
|
|
|
|
|
|
assert(camera->num_buffers <= MAX_VIDEO_BUFFERS);
|
|
|
|
for (int i = 0; i < camera->num_buffers; ++i) {
|
|
|
|
if (munmap(camera->buffers[i].data, camera->buffers[i].length) ==
|
|
|
|
-1) {
|
|
|
|
errno_printerr("munmap");
|
|
|
|
}
|
2021-04-07 16:16:17 +02:00
|
|
|
|
|
|
|
if (close(camera->buffers[i].fd) == -1) {
|
|
|
|
errno_printerr("close");
|
|
|
|
}
|
2020-12-06 15:44:31 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
camera->num_buffers = 0;
|
|
|
|
|
|
|
|
struct v4l2_requestbuffers req = {};
|
|
|
|
req.count = 0;
|
|
|
|
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
req.memory = V4L2_MEMORY_MMAP;
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_REQBUFS, &req) == -1) {
|
|
|
|
errno_printerr("VIDIOC_REQBUFS");
|
|
|
|
}
|
|
|
|
|
|
|
|
return true;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_is_capturing(MPCamera *camera)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
return camera->num_buffers > 0;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
2021-04-07 16:16:17 +02:00
|
|
|
mp_camera_capture_buffer(MPCamera *camera, MPBuffer *buffer)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
struct v4l2_buffer buf = {};
|
|
|
|
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
buf.memory = V4L2_MEMORY_MMAP;
|
|
|
|
|
|
|
|
struct v4l2_plane planes[1];
|
|
|
|
if (camera->use_mplane) {
|
|
|
|
buf.m.planes = planes;
|
|
|
|
buf.length = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_DQBUF, &buf) == -1) {
|
|
|
|
switch (errno) {
|
|
|
|
case EAGAIN:
|
|
|
|
return true;
|
|
|
|
case EIO:
|
|
|
|
/* Could ignore EIO, see spec. */
|
|
|
|
/* fallthrough */
|
|
|
|
default:
|
|
|
|
errno_printerr("VIDIOC_DQBUF");
|
2021-04-15 15:14:20 +02:00
|
|
|
exit(1);
|
2020-12-06 15:44:31 +01:00
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
uint32_t pixel_format = camera->current_mode.pixel_format;
|
|
|
|
uint32_t width = camera->current_mode.width;
|
|
|
|
uint32_t height = camera->current_mode.height;
|
|
|
|
|
|
|
|
uint32_t bytesused;
|
|
|
|
if (camera->use_mplane) {
|
|
|
|
bytesused = planes[0].bytesused;
|
|
|
|
} else {
|
|
|
|
bytesused = buf.bytesused;
|
|
|
|
}
|
|
|
|
|
|
|
|
assert(bytesused ==
|
|
|
|
mp_pixel_format_width_to_bytes(pixel_format, width) * height);
|
|
|
|
assert(bytesused == camera->buffers[buf.index].length);
|
|
|
|
|
2021-04-07 16:16:17 +02:00
|
|
|
buffer->index = buf.index;
|
|
|
|
buffer->data = camera->buffers[buf.index].data;
|
|
|
|
buffer->fd = camera->buffers[buf.index].fd;
|
2020-12-06 15:44:31 +01:00
|
|
|
|
2021-04-07 16:16:17 +02:00
|
|
|
return true;
|
|
|
|
}
|
2020-12-06 15:44:31 +01:00
|
|
|
|
2021-04-07 16:16:17 +02:00
|
|
|
bool mp_camera_release_buffer(MPCamera *camera, uint32_t buffer_index)
|
|
|
|
{
|
|
|
|
struct v4l2_buffer buf = {};
|
|
|
|
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
buf.memory = V4L2_MEMORY_MMAP;
|
|
|
|
buf.index = buffer_index;
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_QBUF, &buf) == -1) {
|
|
|
|
errno_printerr("VIDIOC_QBUF");
|
|
|
|
return false;
|
2020-12-06 15:44:31 +01:00
|
|
|
}
|
|
|
|
return true;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
struct _MPCameraModeList {
|
2020-12-06 15:44:31 +01:00
|
|
|
MPCameraMode mode;
|
|
|
|
MPCameraModeList *next;
|
2020-10-24 05:36:28 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
static MPCameraModeList *
|
|
|
|
get_subdev_modes(MPCamera *camera, bool (*check)(MPCamera *, MPCameraMode *))
|
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
MPCameraModeList *item = NULL;
|
|
|
|
|
|
|
|
for (uint32_t fmt_index = 0;; ++fmt_index) {
|
|
|
|
struct v4l2_subdev_mbus_code_enum fmt = {};
|
|
|
|
fmt.index = fmt_index;
|
|
|
|
fmt.pad = 0;
|
|
|
|
fmt.which = V4L2_SUBDEV_FORMAT_TRY;
|
|
|
|
if (xioctl(camera->subdev_fd, VIDIOC_SUBDEV_ENUM_MBUS_CODE, &fmt) ==
|
|
|
|
-1) {
|
|
|
|
if (errno != EINVAL) {
|
|
|
|
errno_printerr("VIDIOC_SUBDEV_ENUM_MBUS_CODE");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Skip unsupported formats
|
|
|
|
uint32_t format = mp_pixel_format_from_v4l_bus_code(fmt.code);
|
|
|
|
if (format == MP_PIXEL_FMT_UNSUPPORTED) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (uint32_t frame_index = 0;; ++frame_index) {
|
|
|
|
struct v4l2_subdev_frame_size_enum frame = {};
|
|
|
|
frame.index = frame_index;
|
|
|
|
frame.pad = 0;
|
|
|
|
frame.code = fmt.code;
|
|
|
|
frame.which = V4L2_SUBDEV_FORMAT_TRY;
|
|
|
|
if (xioctl(camera->subdev_fd, VIDIOC_SUBDEV_ENUM_FRAME_SIZE,
|
|
|
|
&frame) == -1) {
|
|
|
|
if (errno != EINVAL) {
|
|
|
|
errno_printerr(
|
|
|
|
"VIDIOC_SUBDEV_ENUM_FRAME_SIZE");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
// TODO: Handle other types
|
|
|
|
if (frame.min_width != frame.max_width ||
|
|
|
|
frame.min_height != frame.max_height) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (uint32_t interval_index = 0;; ++interval_index) {
|
|
|
|
struct v4l2_subdev_frame_interval_enum interval = {};
|
|
|
|
interval.index = interval_index;
|
|
|
|
interval.pad = 0;
|
|
|
|
interval.code = fmt.code;
|
|
|
|
interval.width = frame.max_width;
|
|
|
|
interval.height = frame.max_height;
|
|
|
|
interval.which = V4L2_SUBDEV_FORMAT_TRY;
|
|
|
|
if (xioctl(camera->subdev_fd,
|
|
|
|
VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL,
|
|
|
|
&interval) == -1) {
|
|
|
|
if (errno != EINVAL) {
|
|
|
|
errno_printerr(
|
|
|
|
"VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
MPCameraMode mode = {
|
|
|
|
.pixel_format = format,
|
|
|
|
.frame_interval = interval.interval,
|
|
|
|
.width = frame.max_width,
|
|
|
|
.height = frame.max_height,
|
|
|
|
};
|
|
|
|
|
|
|
|
if (!check(camera, &mode)) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
MPCameraModeList *new_item =
|
|
|
|
malloc(sizeof(MPCameraModeList));
|
|
|
|
new_item->mode = mode;
|
|
|
|
new_item->next = item;
|
|
|
|
item = new_item;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return item;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static MPCameraModeList *
|
|
|
|
get_video_modes(MPCamera *camera, bool (*check)(MPCamera *, MPCameraMode *))
|
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
MPCameraModeList *item = NULL;
|
|
|
|
|
|
|
|
for (uint32_t fmt_index = 0;; ++fmt_index) {
|
|
|
|
struct v4l2_fmtdesc fmt = {};
|
|
|
|
fmt.index = fmt_index;
|
|
|
|
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_ENUM_FMT, &fmt) == -1) {
|
|
|
|
if (errno != EINVAL) {
|
|
|
|
errno_printerr("VIDIOC_ENUM_FMT");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Skip unsupported formats
|
|
|
|
uint32_t format =
|
|
|
|
mp_pixel_format_from_v4l_pixel_format(fmt.pixelformat);
|
|
|
|
if (format == MP_PIXEL_FMT_UNSUPPORTED) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (uint32_t frame_index = 0;; ++frame_index) {
|
|
|
|
struct v4l2_frmsizeenum frame = {};
|
|
|
|
frame.index = frame_index;
|
|
|
|
frame.pixel_format = fmt.pixelformat;
|
|
|
|
if (xioctl(camera->video_fd, VIDIOC_ENUM_FRAMESIZES,
|
|
|
|
&frame) == -1) {
|
|
|
|
if (errno != EINVAL) {
|
|
|
|
errno_printerr("VIDIOC_ENUM_FRAMESIZES");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
// TODO: Handle other types
|
|
|
|
if (frame.type != V4L2_FRMSIZE_TYPE_DISCRETE) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (uint32_t interval_index = 0;; ++interval_index) {
|
|
|
|
struct v4l2_frmivalenum interval = {};
|
|
|
|
interval.index = interval_index;
|
|
|
|
interval.pixel_format = fmt.pixelformat;
|
|
|
|
interval.width = frame.discrete.width;
|
|
|
|
interval.height = frame.discrete.height;
|
|
|
|
if (xioctl(camera->video_fd,
|
|
|
|
VIDIOC_ENUM_FRAMEINTERVALS,
|
|
|
|
&interval) == -1) {
|
|
|
|
if (errno != EINVAL) {
|
|
|
|
errno_printerr(
|
|
|
|
"VIDIOC_ENUM_FRAMESIZES");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
// TODO: Handle other types
|
|
|
|
if (interval.type != V4L2_FRMIVAL_TYPE_DISCRETE) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
MPCameraMode mode = {
|
|
|
|
.pixel_format = format,
|
|
|
|
.frame_interval = interval.discrete,
|
|
|
|
.width = frame.discrete.width,
|
|
|
|
.height = frame.discrete.height,
|
|
|
|
};
|
|
|
|
|
|
|
|
if (!check(camera, &mode)) {
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
MPCameraModeList *new_item =
|
|
|
|
malloc(sizeof(MPCameraModeList));
|
|
|
|
new_item->mode = mode;
|
|
|
|
new_item->next = item;
|
|
|
|
item = new_item;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return item;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
static bool
|
|
|
|
all_modes(MPCamera *camera, MPCameraMode *mode)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
return true;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
static bool
|
|
|
|
available_modes(MPCamera *camera, MPCameraMode *mode)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
MPCameraMode attempt = *mode;
|
|
|
|
return mp_camera_try_mode(camera, &attempt) &&
|
|
|
|
mp_camera_mode_is_equivalent(mode, &attempt);
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
MPCameraModeList *
|
|
|
|
mp_camera_list_supported_modes(MPCamera *camera)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
if (mp_camera_is_subdev(camera)) {
|
|
|
|
return get_subdev_modes(camera, all_modes);
|
|
|
|
} else {
|
|
|
|
return get_video_modes(camera, all_modes);
|
|
|
|
}
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
MPCameraModeList *
|
|
|
|
mp_camera_list_available_modes(MPCamera *camera)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
if (mp_camera_is_subdev(camera)) {
|
|
|
|
return get_subdev_modes(camera, available_modes);
|
|
|
|
} else {
|
|
|
|
return get_video_modes(camera, available_modes);
|
|
|
|
}
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
MPCameraMode *
|
|
|
|
mp_camera_mode_list_get(MPCameraModeList *list)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
g_return_val_if_fail(list, NULL);
|
|
|
|
return &list->mode;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
MPCameraModeList *
|
|
|
|
mp_camera_mode_list_next(MPCameraModeList *list)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
g_return_val_if_fail(list, NULL);
|
|
|
|
return list->next;
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
void
|
|
|
|
mp_camera_mode_list_free(MPCameraModeList *list)
|
2020-10-24 05:36:28 +02:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
while (list) {
|
|
|
|
MPCameraModeList *tmp = list;
|
|
|
|
list = tmp->next;
|
|
|
|
free(tmp);
|
|
|
|
}
|
2020-10-24 05:36:28 +02:00
|
|
|
}
|
2020-11-26 16:06:02 +01:00
|
|
|
|
|
|
|
struct int_str_pair {
|
2020-12-06 15:44:31 +01:00
|
|
|
uint32_t value;
|
|
|
|
const char *str;
|
2020-11-26 16:06:02 +01:00
|
|
|
};
|
|
|
|
|
|
|
|
struct int_str_pair control_id_names[] = {
|
2020-12-06 15:44:31 +01:00
|
|
|
{ V4L2_CID_BRIGHTNESS, "BRIGHTNESS" },
|
|
|
|
{ V4L2_CID_CONTRAST, "CONTRAST" },
|
|
|
|
{ V4L2_CID_SATURATION, "SATURATION" },
|
|
|
|
{ V4L2_CID_HUE, "HUE" },
|
|
|
|
{ V4L2_CID_AUDIO_VOLUME, "AUDIO_VOLUME" },
|
|
|
|
{ V4L2_CID_AUDIO_BALANCE, "AUDIO_BALANCE" },
|
|
|
|
{ V4L2_CID_AUDIO_BASS, "AUDIO_BASS" },
|
|
|
|
{ V4L2_CID_AUDIO_TREBLE, "AUDIO_TREBLE" },
|
|
|
|
{ V4L2_CID_AUDIO_MUTE, "AUDIO_MUTE" },
|
|
|
|
{ V4L2_CID_AUDIO_LOUDNESS, "AUDIO_LOUDNESS" },
|
|
|
|
{ V4L2_CID_BLACK_LEVEL, "BLACK_LEVEL" },
|
|
|
|
{ V4L2_CID_AUTO_WHITE_BALANCE, "AUTO_WHITE_BALANCE" },
|
|
|
|
{ V4L2_CID_DO_WHITE_BALANCE, "DO_WHITE_BALANCE" },
|
|
|
|
{ V4L2_CID_RED_BALANCE, "RED_BALANCE" },
|
|
|
|
{ V4L2_CID_BLUE_BALANCE, "BLUE_BALANCE" },
|
|
|
|
{ V4L2_CID_GAMMA, "GAMMA" },
|
|
|
|
{ V4L2_CID_WHITENESS, "WHITENESS" },
|
|
|
|
{ V4L2_CID_EXPOSURE, "EXPOSURE" },
|
|
|
|
{ V4L2_CID_AUTOGAIN, "AUTOGAIN" },
|
|
|
|
{ V4L2_CID_GAIN, "GAIN" },
|
|
|
|
{ V4L2_CID_HFLIP, "HFLIP" },
|
|
|
|
{ V4L2_CID_VFLIP, "VFLIP" },
|
|
|
|
{ V4L2_CID_POWER_LINE_FREQUENCY, "POWER_LINE_FREQUENCY" },
|
|
|
|
{ V4L2_CID_HUE_AUTO, "HUE_AUTO" },
|
|
|
|
{ V4L2_CID_WHITE_BALANCE_TEMPERATURE, "WHITE_BALANCE_TEMPERATURE" },
|
|
|
|
{ V4L2_CID_SHARPNESS, "SHARPNESS" },
|
|
|
|
{ V4L2_CID_BACKLIGHT_COMPENSATION, "BACKLIGHT_COMPENSATION" },
|
|
|
|
{ V4L2_CID_CHROMA_AGC, "CHROMA_AGC" },
|
|
|
|
{ V4L2_CID_COLOR_KILLER, "COLOR_KILLER" },
|
|
|
|
{ V4L2_CID_COLORFX, "COLORFX" },
|
|
|
|
{ V4L2_CID_AUTOBRIGHTNESS, "AUTOBRIGHTNESS" },
|
|
|
|
{ V4L2_CID_BAND_STOP_FILTER, "BAND_STOP_FILTER" },
|
|
|
|
{ V4L2_CID_ROTATE, "ROTATE" },
|
|
|
|
{ V4L2_CID_BG_COLOR, "BG_COLOR" },
|
|
|
|
{ V4L2_CID_CHROMA_GAIN, "CHROMA_GAIN" },
|
|
|
|
{ V4L2_CID_ILLUMINATORS_1, "ILLUMINATORS_1" },
|
|
|
|
{ V4L2_CID_ILLUMINATORS_2, "ILLUMINATORS_2" },
|
|
|
|
{ V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, "MIN_BUFFERS_FOR_CAPTURE" },
|
|
|
|
{ V4L2_CID_MIN_BUFFERS_FOR_OUTPUT, "MIN_BUFFERS_FOR_OUTPUT" },
|
|
|
|
{ V4L2_CID_ALPHA_COMPONENT, "ALPHA_COMPONENT" },
|
|
|
|
{ V4L2_CID_COLORFX_CBCR, "COLORFX_CBCR" },
|
|
|
|
{ V4L2_CID_LASTP1, "LASTP1" },
|
|
|
|
{ V4L2_CID_USER_MEYE_BASE, "USER_MEYE_BASE" },
|
|
|
|
{ V4L2_CID_USER_BTTV_BASE, "USER_BTTV_BASE" },
|
|
|
|
{ V4L2_CID_USER_S2255_BASE, "USER_S2255_BASE" },
|
|
|
|
{ V4L2_CID_USER_SI476X_BASE, "USER_SI476X_BASE" },
|
|
|
|
{ V4L2_CID_USER_TI_VPE_BASE, "USER_TI_VPE_BASE" },
|
|
|
|
{ V4L2_CID_USER_SAA7134_BASE, "USER_SAA7134_BASE" },
|
|
|
|
{ V4L2_CID_USER_ADV7180_BASE, "USER_ADV7180_BASE" },
|
|
|
|
{ V4L2_CID_USER_TC358743_BASE, "USER_TC358743_BASE" },
|
|
|
|
{ V4L2_CID_USER_MAX217X_BASE, "USER_MAX217X_BASE" },
|
|
|
|
{ V4L2_CID_USER_IMX_BASE, "USER_IMX_BASE" },
|
|
|
|
// { V4L2_CID_USER_ATMEL_ISC_BASE, "USER_ATMEL_ISC_BASE" },
|
|
|
|
{ V4L2_CID_CAMERA_CLASS_BASE, "CAMERA_CLASS_BASE" },
|
|
|
|
{ V4L2_CID_CAMERA_CLASS, "CAMERA_CLASS" },
|
|
|
|
{ V4L2_CID_EXPOSURE_AUTO, "EXPOSURE_AUTO" },
|
|
|
|
{ V4L2_CID_EXPOSURE_ABSOLUTE, "EXPOSURE_ABSOLUTE" },
|
|
|
|
{ V4L2_CID_EXPOSURE_AUTO_PRIORITY, "EXPOSURE_AUTO_PRIORITY" },
|
|
|
|
{ V4L2_CID_PAN_RELATIVE, "PAN_RELATIVE" },
|
|
|
|
{ V4L2_CID_TILT_RELATIVE, "TILT_RELATIVE" },
|
|
|
|
{ V4L2_CID_PAN_RESET, "PAN_RESET" },
|
|
|
|
{ V4L2_CID_TILT_RESET, "TILT_RESET" },
|
|
|
|
{ V4L2_CID_PAN_ABSOLUTE, "PAN_ABSOLUTE" },
|
|
|
|
{ V4L2_CID_TILT_ABSOLUTE, "TILT_ABSOLUTE" },
|
|
|
|
{ V4L2_CID_FOCUS_ABSOLUTE, "FOCUS_ABSOLUTE" },
|
|
|
|
{ V4L2_CID_FOCUS_RELATIVE, "FOCUS_RELATIVE" },
|
|
|
|
{ V4L2_CID_FOCUS_AUTO, "FOCUS_AUTO" },
|
|
|
|
{ V4L2_CID_ZOOM_ABSOLUTE, "ZOOM_ABSOLUTE" },
|
|
|
|
{ V4L2_CID_ZOOM_RELATIVE, "ZOOM_RELATIVE" },
|
|
|
|
{ V4L2_CID_ZOOM_CONTINUOUS, "ZOOM_CONTINUOUS" },
|
|
|
|
{ V4L2_CID_PRIVACY, "PRIVACY" },
|
|
|
|
{ V4L2_CID_IRIS_ABSOLUTE, "IRIS_ABSOLUTE" },
|
|
|
|
{ V4L2_CID_IRIS_RELATIVE, "IRIS_RELATIVE" },
|
|
|
|
{ V4L2_CID_AUTO_EXPOSURE_BIAS, "AUTO_EXPOSURE_BIAS" },
|
|
|
|
{ V4L2_CID_AUTO_N_PRESET_WHITE_BALANCE, "AUTO_N_PRESET_WHITE_BALANCE" },
|
|
|
|
{ V4L2_CID_WIDE_DYNAMIC_RANGE, "WIDE_DYNAMIC_RANGE" },
|
|
|
|
{ V4L2_CID_IMAGE_STABILIZATION, "IMAGE_STABILIZATION" },
|
|
|
|
{ V4L2_CID_ISO_SENSITIVITY, "ISO_SENSITIVITY" },
|
|
|
|
{ V4L2_CID_ISO_SENSITIVITY_AUTO, "ISO_SENSITIVITY_AUTO" },
|
|
|
|
{ V4L2_CID_EXPOSURE_METERING, "EXPOSURE_METERING" },
|
|
|
|
{ V4L2_CID_SCENE_MODE, "SCENE_MODE" },
|
|
|
|
{ V4L2_CID_3A_LOCK, "3A_LOCK" },
|
|
|
|
{ V4L2_CID_AUTO_FOCUS_START, "AUTO_FOCUS_START" },
|
|
|
|
{ V4L2_CID_AUTO_FOCUS_STOP, "AUTO_FOCUS_STOP" },
|
|
|
|
{ V4L2_CID_AUTO_FOCUS_STATUS, "AUTO_FOCUS_STATUS" },
|
|
|
|
{ V4L2_CID_AUTO_FOCUS_RANGE, "AUTO_FOCUS_RANGE" },
|
|
|
|
{ V4L2_CID_PAN_SPEED, "PAN_SPEED" },
|
|
|
|
{ V4L2_CID_TILT_SPEED, "TILT_SPEED" },
|
|
|
|
// { V4L2_CID_CAMERA_ORIENTATION, "CAMERA_ORIENTATION" },
|
|
|
|
// { V4L2_CID_CAMERA_SENSOR_ROTATION, "CAMERA_SENSOR_ROTATION" },
|
|
|
|
{ V4L2_CID_FLASH_LED_MODE, "FLASH_LED_MODE" },
|
|
|
|
{ V4L2_CID_FLASH_STROBE_SOURCE, "FLASH_STROBE_SOURCE" },
|
|
|
|
{ V4L2_CID_FLASH_STROBE, "FLASH_STROBE" },
|
|
|
|
{ V4L2_CID_FLASH_STROBE_STOP, "FLASH_STROBE_STOP" },
|
|
|
|
{ V4L2_CID_FLASH_STROBE_STATUS, "FLASH_STROBE_STATUS" },
|
|
|
|
{ V4L2_CID_FLASH_TIMEOUT, "FLASH_TIMEOUT" },
|
|
|
|
{ V4L2_CID_FLASH_INTENSITY, "FLASH_INTENSITY" },
|
|
|
|
{ V4L2_CID_FLASH_TORCH_INTENSITY, "FLASH_TORCH_INTENSITY" },
|
|
|
|
{ V4L2_CID_FLASH_INDICATOR_INTENSITY, "FLASH_INDICATOR_INTENSITY" },
|
|
|
|
{ V4L2_CID_FLASH_FAULT, "FLASH_FAULT" },
|
|
|
|
{ V4L2_CID_FLASH_CHARGE, "FLASH_CHARGE" },
|
|
|
|
{ V4L2_CID_FLASH_READY, "FLASH_READY" },
|
2020-11-26 16:06:02 +01:00
|
|
|
};
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
const char *
|
|
|
|
mp_control_id_to_str(uint32_t id)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
size_t size = sizeof(control_id_names) / sizeof(*control_id_names);
|
2020-11-26 16:06:02 +01:00
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
for (size_t i = 0; i < size; ++i) {
|
|
|
|
if (control_id_names[i].value == id) {
|
|
|
|
return control_id_names[i].str;
|
|
|
|
}
|
|
|
|
}
|
2020-11-26 16:06:02 +01:00
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
return "UNKNOWN";
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
struct int_str_pair control_type_names[] = {
|
2020-12-06 15:44:31 +01:00
|
|
|
{ V4L2_CTRL_TYPE_INTEGER, "INTEGER" },
|
|
|
|
{ V4L2_CTRL_TYPE_BOOLEAN, "BOOLEAN" },
|
|
|
|
{ V4L2_CTRL_TYPE_MENU, "MENU" },
|
|
|
|
{ V4L2_CTRL_TYPE_INTEGER_MENU, "INTEGER_MENU" },
|
|
|
|
{ V4L2_CTRL_TYPE_BITMASK, "BITMASK" },
|
|
|
|
{ V4L2_CTRL_TYPE_BUTTON, "BUTTON" },
|
|
|
|
{ V4L2_CTRL_TYPE_INTEGER64, "INTEGER64" },
|
|
|
|
{ V4L2_CTRL_TYPE_STRING, "STRING" },
|
|
|
|
{ V4L2_CTRL_TYPE_CTRL_CLASS, "CTRL_CLASS" },
|
|
|
|
{ V4L2_CTRL_TYPE_U8, "U8" },
|
|
|
|
{ V4L2_CTRL_TYPE_U16, "U16" },
|
|
|
|
{ V4L2_CTRL_TYPE_U32, "U32" },
|
|
|
|
// { V4L2_CTRL_TYPE_MPEG2_SLICE_PARAMS, "MPEG2_SLICE_PARAMS" },
|
|
|
|
// { V4L2_CTRL_TYPE_MPEG2_QUANTIZATION, "MPEG2_QUANTIZATION" },
|
|
|
|
// { V4L2_CTRL_TYPE_AREA, "AREA" },
|
|
|
|
// { V4L2_CTRL_TYPE_H264_SPS, "H264_SPS" },
|
|
|
|
// { V4L2_CTRL_TYPE_H264_PPS, "H264_PPS" },
|
|
|
|
// { V4L2_CTRL_TYPE_H264_SCALING_MATRIX, "H264_SCALING_MATRIX" },
|
|
|
|
// { V4L2_CTRL_TYPE_H264_SLICE_PARAMS, "H264_SLICE_PARAMS" },
|
|
|
|
// { V4L2_CTRL_TYPE_H264_DECODE_PARAMS, "H264_DECODE_PARAMS" },
|
|
|
|
// { V4L2_CTRL_TYPE_HEVC_SPS, "HEVC_SPS" },
|
|
|
|
// { V4L2_CTRL_TYPE_HEVC_PPS, "HEVC_PPS" },
|
|
|
|
// { V4L2_CTRL_TYPE_HEVC_SLICE_PARAMS, "HEVC_SLICE_PARAMS" },
|
2020-11-26 16:06:02 +01:00
|
|
|
};
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
const char *
|
|
|
|
mp_control_type_to_str(uint32_t type)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
size_t size = sizeof(control_type_names) / sizeof(*control_type_names);
|
2020-11-26 16:06:02 +01:00
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
for (size_t i = 0; i < size; ++i) {
|
|
|
|
if (control_type_names[i].value == type) {
|
|
|
|
return control_type_names[i].str;
|
|
|
|
}
|
|
|
|
}
|
2020-11-26 16:06:02 +01:00
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
return "UNKNOWN";
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
struct _MPControlList {
|
2020-12-06 15:44:31 +01:00
|
|
|
MPControl control;
|
|
|
|
MPControlList *next;
|
2020-11-26 16:06:02 +01:00
|
|
|
};
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
static int
|
|
|
|
control_fd(MPCamera *camera)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
if (camera->subdev_fd != -1) {
|
|
|
|
return camera->subdev_fd;
|
|
|
|
}
|
|
|
|
return camera->video_fd;
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
MPControlList *
|
|
|
|
mp_camera_list_controls(MPCamera *camera)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
MPControlList *item = NULL;
|
|
|
|
|
|
|
|
struct v4l2_query_ext_ctrl ctrl = {};
|
|
|
|
ctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND;
|
|
|
|
while (true) {
|
|
|
|
if (xioctl(control_fd(camera), VIDIOC_QUERY_EXT_CTRL, &ctrl) == -1) {
|
|
|
|
if (errno != EINVAL) {
|
|
|
|
errno_printerr("VIDIOC_QUERY_EXT_CTRL");
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
MPControl control = {
|
|
|
|
.id = ctrl.id,
|
|
|
|
.type = ctrl.type,
|
|
|
|
.name = {},
|
|
|
|
.min = ctrl.minimum,
|
|
|
|
.max = ctrl.maximum,
|
|
|
|
.step = ctrl.step,
|
|
|
|
.default_value = ctrl.default_value,
|
|
|
|
.flags = ctrl.flags,
|
|
|
|
.element_size = ctrl.elem_size,
|
|
|
|
.element_count = ctrl.elems,
|
|
|
|
.dimensions_count = ctrl.nr_of_dims,
|
|
|
|
.dimensions = {},
|
|
|
|
};
|
|
|
|
|
|
|
|
strcpy(control.name, ctrl.name);
|
|
|
|
memcpy(control.dimensions, ctrl.dims,
|
|
|
|
sizeof(uint32_t) * V4L2_CTRL_MAX_DIMS);
|
|
|
|
|
|
|
|
MPControlList *new_item = malloc(sizeof(MPControlList));
|
|
|
|
new_item->control = control;
|
|
|
|
new_item->next = item;
|
|
|
|
item = new_item;
|
|
|
|
|
|
|
|
ctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL | V4L2_CTRL_FLAG_NEXT_COMPOUND;
|
|
|
|
}
|
|
|
|
|
|
|
|
return item;
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
MPControl *
|
|
|
|
mp_control_list_get(MPControlList *list)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
g_return_val_if_fail(list, NULL);
|
|
|
|
return &list->control;
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
MPControlList *
|
|
|
|
mp_control_list_next(MPControlList *list)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
g_return_val_if_fail(list, NULL);
|
|
|
|
return list->next;
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
void
|
|
|
|
mp_control_list_free(MPControlList *list)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
while (list) {
|
|
|
|
MPControlList *tmp = list;
|
|
|
|
list = tmp->next;
|
|
|
|
free(tmp);
|
|
|
|
}
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_query_control(MPCamera *camera, uint32_t id, MPControl *control)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
struct v4l2_query_ext_ctrl ctrl = {};
|
|
|
|
ctrl.id = id;
|
|
|
|
if (xioctl(control_fd(camera), VIDIOC_QUERY_EXT_CTRL, &ctrl) == -1) {
|
|
|
|
if (errno != EINVAL) {
|
|
|
|
errno_printerr("VIDIOC_QUERY_EXT_CTRL");
|
|
|
|
}
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (control) {
|
|
|
|
control->id = ctrl.id;
|
|
|
|
control->type = ctrl.type;
|
|
|
|
strcpy(control->name, ctrl.name);
|
|
|
|
control->min = ctrl.minimum;
|
|
|
|
control->max = ctrl.maximum;
|
|
|
|
control->step = ctrl.step;
|
|
|
|
control->default_value = ctrl.default_value;
|
|
|
|
control->flags = ctrl.flags;
|
|
|
|
control->element_size = ctrl.elem_size;
|
|
|
|
control->element_count = ctrl.elems;
|
|
|
|
control->dimensions_count = ctrl.nr_of_dims;
|
|
|
|
memcpy(control->dimensions, ctrl.dims,
|
|
|
|
sizeof(uint32_t) * V4L2_CTRL_MAX_DIMS);
|
|
|
|
}
|
|
|
|
return true;
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
static bool
|
|
|
|
control_impl_int32(MPCamera *camera, uint32_t id, int request, int32_t *value)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
struct v4l2_ext_control ctrl = {};
|
|
|
|
ctrl.id = id;
|
|
|
|
ctrl.value = *value;
|
|
|
|
|
|
|
|
struct v4l2_ext_controls ctrls = {
|
|
|
|
.ctrl_class = 0,
|
|
|
|
.which = V4L2_CTRL_WHICH_CUR_VAL,
|
|
|
|
.count = 1,
|
|
|
|
.controls = &ctrl,
|
|
|
|
};
|
|
|
|
if (xioctl(control_fd(camera), request, &ctrls) == -1) {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
*value = ctrl.value;
|
|
|
|
return true;
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_control_try_int32(MPCamera *camera, uint32_t id, int32_t *v)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
return control_impl_int32(camera, id, VIDIOC_TRY_EXT_CTRLS, v);
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_control_set_int32(MPCamera *camera, uint32_t id, int32_t v)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
return control_impl_int32(camera, id, VIDIOC_S_EXT_CTRLS, &v);
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
int32_t
|
|
|
|
mp_camera_control_get_int32(MPCamera *camera, uint32_t id)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
int32_t v = 0;
|
|
|
|
control_impl_int32(camera, id, VIDIOC_G_EXT_CTRLS, &v);
|
|
|
|
return v;
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_control_try_boolean(MPCamera *camera, uint32_t id, bool *v)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
int32_t value = *v;
|
|
|
|
bool s = control_impl_int32(camera, id, VIDIOC_TRY_EXT_CTRLS, &value);
|
|
|
|
*v = value;
|
|
|
|
return s;
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_control_set_bool(MPCamera *camera, uint32_t id, bool v)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
int32_t value = v;
|
|
|
|
return control_impl_int32(camera, id, VIDIOC_S_EXT_CTRLS, &value);
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|
|
|
|
|
2020-12-06 15:44:31 +01:00
|
|
|
bool
|
|
|
|
mp_camera_control_get_bool(MPCamera *camera, uint32_t id)
|
2020-11-26 16:06:02 +01:00
|
|
|
{
|
2020-12-06 15:44:31 +01:00
|
|
|
int32_t v = false;
|
|
|
|
control_impl_int32(camera, id, VIDIOC_G_EXT_CTRLS, &v);
|
|
|
|
return v;
|
2020-11-26 16:06:02 +01:00
|
|
|
}
|