Date: Tue, 09 Sep 2014 20:05:50 +0900 (JST) From: SAITOU Toshihide <toshi@ruby.ocn.ne.jp> To: hiroo.ono+freebsd@gmail.com Cc: freebsd-users-jp@freebsd.org Subject: [FreeBSD-users-jp 95275] Re: =?iso-2022-jp?b?GyRCRjAyaCROJS0lYyVXJUElYxsoQg==?= Message-ID: <20140909.200550.1315917916182598029.toshi@ruby.ocn.ne.jp> In-Reply-To: <CANtk6SgyiQZihxEPmEuAz8S7q=TYXPxyQpjs-uETeEjsTB2-sg@mail.gmail.com> References: <CANtk6SgyiQZihxEPmEuAz8S7q=TYXPxyQpjs-uETeEjsTB2-sg@mail.gmail.com>
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[-- Attachment #1 --]
In message: <CANtk6SgyiQZihxEPmEuAz8S7q=TYXPxyQpjs-uETeEjsTB2-sg@mail.gmail.com>
Hiroo Ono ($B>.Ln42@8(B) <hiroo.ono+freebsd@gmail.com> writes:
>
> FreeBSD $B$G(B UVC $B$J%G%P%$%9$+$iF02h$r$J$s$i$+$N7A<0$N%U%!%$%k$K%-%c%W%A%c$9$k$3$H$O$G$-$k$N$G$7$g$&$+(B?
libusb $B$r;H$&<j$O$I$&$G$7$g$&!%MxE@$H$7$F(B Mac $B$d(B Android $B$G(B
$B$b$@$$$?$$F1$8$h$&$K$7$F;H$($k$3$H$,$"$2$i$l$^$9!%(B
$BE:IU%U%!%$%k$O(B UVC $B$N(B Uncompressed $B$J7A<0$N2hA|$r=PNO$7$^$9!%(B
$B0J2<%3%^%s%I$KEO$7$F:F@8$G$-$F$$$?$H;W$$$^$9!%(B
mplayer - -demuxer rawvideo -rawvideo fps=30:w=640:h=480:yuy2
$B>/$7$NJQ99$G(B MJPEG $B$b<h$j=P$;!$$b$&>/$7JQ99$9$l$P%P%k%/E>Aw(B
$B$N%G%P%$%9$K$bBP1~$G$-$k$H;W$$$^$9!%(B
mplayer - -demuxer lavf -lavfdopts format=mjpeg fps=60
$B!A(B
UVC $B%+%a%i$r<B834o6q$H$7$FMxMQ$7$h$&$H;W$C$F!J%l!<%6%]%$%s%?(B
$B$r%"%Q%A%c!<1[$7$K%;%s%5!<$K$"$F$F%(%"%j!<%G%#%9%/$,4Q;!$G$-(B
$B$J$$$+$H$+!KMQ0U$7$?$N$G$9$,J|CV>uBV$G$7$?!%(BUSB3 $B$N%+%a%i%b(B
$B%8%e!<%k$J$I$bNw2A$G=P$F$$$k$h$&$G0l$DGc$C$F$"$k$N$G$9$,!J%P(B
$B%k%/E>Aw$G(B BY8 $B=PNO$@$C$?$b$N$H$+!K$d$O$jJ|CV>uBV$G$9!%(B(^_^;
$BsnF#(B
[-- Attachment #2 --]
/*
* Copyright (c) 2012 SAITOU Toshihide
* All rights reserved.
*
* A sample program for LibUSB isochronous transfer using UVC cam.
*
*
* Compiling and Running
*
* (Mac OS) $ cc -Wall -o ex44 ex44.c -I/opt/local/include/libusb-1.0 -L/opt/local/lib -lusb-1.0
* (FreeBSD) $ cc -Wall -o ex44 ex44.c -lusb
*
* $ ./ex44
*
*
* Reference
*
* [PL_UnComp]
* (USB_Video_Payload_Uncompressed_1.5.pdf),
* <http://www.usb.org/developers/devclass_docs>.
*
* [UVC1.5] Universal Serial Bus Device Class Definition for Video Devices,
* (UVC 1.5 Class specification.pdf),
* <http://www.usb.org/developers/devclass_docs>.
*
* [USB2.0] USB 2.0 Specification Universal Serial Bus Revision 2.0 specification,
* (usb_20.pdf), <http://www.USB.org/developers/>.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <libusb.h>
#include <fcntl.h>
#include "payload.h"
typedef struct uvc_device {
uint16_t VID;
uint16_t PID;
uint8_t ConfIdx; // Configuration Index
uint8_t ConfVal; // Configuration Value
uint8_t IfNum; // Interface Number
uint8_t AltIfNum; // Alternate Interface Number
uint8_t Endpoint; // Interface 1 Alt 1 Endpoint 0 Address 0x82
uint8_t FrameIndex; // FrameIndex for 640x480
} uvc_device;
uvc_device uvc_device_list[] = {
{ 0x0458, 0x7081, 0, 1, 1, 1, 0x82, 1 }, // BSW20K07HWH -- iBUFFALO, BSW20K07HWH
{ 0x056e, 0x7008, 0, 1, 1, 7, 0x82, 1 }, // UCAM-DLY300TA -- ELECOM, UCAM-DLY300TA
{ 0, 0, 0, 0, 0, 0, 0 }
};
uvc_device uvc;
#define FrameSize (640*480)
#define FrameBufferSize (2*FrameSize)
uint8_t padding[FrameBufferSize];
#define PKT_LEN 0xc00
#define PKTS_PER_XFER 0x40
#define NUM_TRANSFER 2
#define TIMEOUT 500 // 500 ms
libusb_context *ctx = NULL;
libusb_device_handle *handle;
struct libusb_transfer * xfers[NUM_TRANSFER];
int fd;
int total = 0;
int16_t brightness;
// for debug
struct timeval tv1;
struct timeval tv2;
struct timezone tz;
int totalFrame = 0;
void
signal_callback_handler(int signum)
{
uint8_t buf[2];
switch (signum)
{
case SIGUSR1:
// BSW20K07HWH
// min: 0xff81, max: 0x0080, res: 0x0001
// UCAM-DLY300TA
// min: 0x000a, max: 0xfff6, res: 0x0001
// $BA0<T$O(B cur $B$rCJ3,E*$K@_Dj$G$-$?$,8e<T$O(B 2 $BCM$N$_<u$1IU$1$?!%(B
// $BJL$N$b$N@_Dj$HO"F0$7$F$$$k$+$"$k$$$O2?$l$+$NCM$,$*$+$7$$!%(B
// $B$$$:$l$b(B VC_PROCESSING_UNIT $B$N(B bUnitID $B$,(B 2 $B$G$"$j(B
// $B2<5-$NDL$j$3$NCM$,8GDj$+$DF10l$N%3!<%G%#%s%0$H$J$C$F$$$k!%(B
// PU_BRIGHTNESS_CONTROL(0x02), GET_MIN(0x82) [UVC1.5, p. 160, 158, 96]
libusb_control_transfer(handle, 0xa1, 0x82, 0x0200, 0x0200, buf, 2, TIMEOUT);
fprintf(stderr, "brightness min: %02x%02x\n", buf[1], buf[0]);
// PU_BRIGHTNESS_CONTROL(0x02), GET_MAX(0x83) [UVC1.5, p. 160, 158, 96]
libusb_control_transfer(handle, 0xa1, 0x83, 0x0200, 0x0200, buf, 2, TIMEOUT);
fprintf(stderr, "brightness max: %02x%02x\n", buf[1], buf[0]);
// PU_BRIGHTNESS_CONTROL(0x02), GET_RES(0x84) [UVC1.5, p. 160, 158, 96]
libusb_control_transfer(handle, 0xa1, 0x84, 0x0200, 0x0200, buf, 2, TIMEOUT);
fprintf(stderr, "brightness res: %02x%02x\n", buf[1], buf[0]);
// PU_BRIGHTNESS_CONTROL(0x02), GET_CUR(0x81) [UVC1.5, p. 160, 158, 96]
libusb_control_transfer(handle, 0xa1, 0x81, 0x0200, 0x0200, buf, 2, TIMEOUT);
fprintf(stderr, "brightness cur: %02x%02x\n", buf[1], buf[0]);
// change brightness
brightness = buf[1]<<8 | buf[0];
brightness -= 30;
buf[1] = brightness<<8;
buf[0] = brightness & 0xff;
// PU_BRIGHTNESS_CONTROL(0x02), SET_CUR(0x01) [UVC1.5, p. 160, 158, 96]
libusb_control_transfer(handle, 0x21, 0x01, 0x0200, 0x0200, buf, 2, TIMEOUT);
// PU_BRIGHTNESS_CONTROL(0x02), GET_CUR(0x81) [UVC1.5, p. 160, 158, 96]
libusb_control_transfer(handle, 0xa1, 0x81, 0x0200, 0x0200, buf, 2, TIMEOUT);
fprintf(stderr, "brightness: %02x%02x\n", buf[1], buf[0]);
break;
case SIGUSR2:
// <UCAM-DLY300TA Elecom Corp.> $B$O%Q%C%1!<%8$K%*!<%H!&(B
// $B%U%)!<%+%9BP1~$H$"$k$,BP1~$9$k5!G=$O%G%#%9%/%j%W%?(B
// $B$N(B VC_EXTENSION_UNIT $B$K<($5$l$F$$$k$h$&$@!%$?$@$7$3(B
// $B$N%S%C%H%^%C%W$N>\:Y$O%Y%s%@!<$N>pJs$,$J$$$HJ,$+$i(B
// $B$J$$!%$3$N3HD%$N(B Entity ID $B$O(B aSourceID $B$+$i(B 1 $B$G$"(B
// $B$j(B CS $B$K$O(B CT_FOCUS_AUTO_CONTROL $B$r;H$C$F$_$k$H$d$O(B
// $B$j%*!<%H!&%U%)!<%+%9$N5!G=$r@)8f$G$-$?!%(B
// CT_FOCUS_AUTO_CONTROL(0x08), GET_CUR(0x81) [UVC1.5, p. 160, 159, 86]
libusb_control_transfer(handle, 0xa1, 0x81, 0x0800, 0x0100, buf, 1, TIMEOUT);
buf[0] = !buf[0];
// CT_FOCUS_AUTO_CONTROL(0x08), SET_CUR(0x01) [UVC1.5, p. 160, 159, 86]
libusb_control_transfer(handle, 0x21, 0x01, 0x0800, 0x0100, buf, 1, TIMEOUT);
fprintf(stderr, "auto focus control: %02x\n", buf[0]);
break;
case SIGINT:
gettimeofday(&tv2, &tz);
fprintf(stderr, "time lapse: %ld\n",
((tv2.tv_sec - tv1.tv_sec) * 1000000) + tv2.tv_usec - tv1.tv_usec);
fprintf(stderr, "fps: %d\n",
(1000000*totalFrame) /
(int)(((tv2.tv_sec - tv1.tv_sec) * 1000000) + tv2.tv_usec - tv1.tv_usec) );
if (libusb_cancel_transfer(xfers[0]))
fprintf(stderr, "cancel transfer 0 failed\n");
if (libusb_cancel_transfer(xfers[1]))
fprintf(stderr, "cancel transfer 1 failed\n");
libusb_free_transfer(xfers[0]);
libusb_free_transfer(xfers[1]);
// $B$3$N%$%s%?%U%'!<%9$HBeBX@_Dj$OB8:_$7$J$$$N$G<:GT$9$k$,(B
// $B$3$l$K$h$j(B NOT STREAMING $B>uBV$X$NA+0\$K$O@.8y$9$k!%(B
libusb_set_interface_alt_setting(handle, 1, 0);
//libusb_reset_device(handle);
//libusb_close(handle);
libusb_exit(ctx);
close(fd);
exit(signum);
default:
break;
}
}
static void cb(struct libusb_transfer *xfer)
{
uint8_t *p;
int plen;
int i;
p = xfer->buffer;
for (i = 0; i < xfer->num_iso_packets; i++, p += PKT_LEN)
{
if (xfer->iso_packet_desc[i].status == LIBUSB_TRANSFER_COMPLETED)
{
plen = xfer->iso_packet_desc[i].actual_length;
// packet only contains an acknowledge?
if (plen < 2)
continue;
// error packet
if (p[1] & UVC_STREAM_ERR) // bmHeaderInfo
continue;
// subtract the header size
plen -= p[0];
// check the data size before write
if (plen + total > FrameBufferSize)
{
fprintf(stderr, "truncate the excess payload length.\n");
plen = FrameBufferSize - total;
}
write(fd, p + p[0], plen);
// update padding data
memcpy(padding + total, p + p[0], plen);
total += plen;
// $B%9%H%j!<%`$,(B EOF $B$N>l9g$N=hM}(B
if (p[1] & UVC_STREAM_EOF)
{
if (total < FrameBufferSize)
{
fprintf(stderr, "insufficient frame data.\n");
// data padding with previous frame.
write(fd, padding + total - plen, FrameBufferSize - total);
}
total = 0;
fprintf(stderr, "%d\n", ++totalFrame);
}
}
}
if (libusb_submit_transfer(xfer) != 0)
{
fprintf(stderr, "submit transfer failed.\n");
}
}
int main( int argc, char **argv)
{
libusb_device **devs;
libusb_device *dev;
struct libusb_device_descriptor desc;
struct libusb_config_descriptor *confDesc;
uint8_t buf[64];
int i;
int j;
if (argv[1] != NULL)
{
if ( (fd = open(argv[1], O_CREAT|O_TRUNC|O_RDWR, 0600)) < 0)
{
fprintf(stderr, "open file failed.\n");
exit(0);
}
}
else
{
fd = open("/dev/stdout", O_WRONLY, 0);
}
signal(SIGINT, signal_callback_handler);
signal(SIGUSR1, signal_callback_handler);
signal(SIGUSR2, signal_callback_handler);
// get cam device
// libusb_init(&ctx);
// handle = libusb_open_device_with_vid_pid(ctx, VID, PID);
// dev = libusb_get_device(handle);
libusb_init(NULL);
libusb_get_device_list(NULL, &devs);
i = 0;
while ((dev = devs[i++]) != NULL) {
libusb_get_device_descriptor(dev, &desc);
for (j = 0; uvc_device_list[j].VID != 0; j++) {
uvc = uvc_device_list[j];
if (uvc.VID == desc.idVendor && uvc.PID == desc.idProduct)
goto FOUND;
}
}
FOUND:
// libusb_free_device_list(devs, 1);
libusb_open(dev, &handle);
// if kernel driver is active, detach a kernel driver.
libusb_get_config_descriptor(dev, uvc.ConfIdx, &confDesc);
// kokokokokokokkokoko
const struct libusb_interface *intf;
const struct libusb_interface_descriptor *intfDesc;
intf = confDesc->interface;
intfDesc = &intf->altsetting[0];
printf("length: %d\n", intfDesc->extra_length);
printf("addr: %ld\n", (long)intfDesc);
intfDesc = &intf->altsetting[1];
printf("length: %d\n", intfDesc->extra_length);
printf("addr: %ld\n", (long)intfDesc);
exit(1);
for (i=0; i<confDesc->bNumInterfaces; i++)
{
if (libusb_kernel_driver_active(handle, i) == 1)
{
fprintf(stderr, "detaching kernel driver for interface %d.\n", i);
if (libusb_detach_kernel_driver(handle, i) != 0)
{
fprintf(stderr, "detach failed.\n");
}
}
}
libusb_free_config_descriptor(confDesc);
// set the active configuration
if (libusb_set_configuration(handle, uvc.ConfVal) != 0)
{
fprintf(stderr, "set configuration failed.\n");
}
// claim an interface in a given libusb_handle.
if (libusb_claim_interface(handle, 0) != 0)
{
fprintf(stderr, "claim interface failed.\n");
}
// ------------------------------------------------------------
// negotiate the streaming parameters
// Device State Transition [UVC1.5, p. 107]
// Video Probe and Commit Controls [UVC1.5, p. 134]
// set some parameters described to be set by the host. [UVC1.5, p. 134]
buf[0] = 0x01; // what fields shall be kept fixed (0x01: dwFrameInterval)
buf[1] = 0x00; //
buf[2] = 0x01; // Video format index (Uncompressed)
buf[3] = uvc.FrameIndex; // Video frame index
buf[4] = 0x15; // Frame interval in 100ns
buf[5] = 0x16; // propose: 0x00051615 (33ms)
buf[6] = 0x05; //
buf[7] = 0x00; //
buf[8] = 0x00; // Key frame rate in key-frame per videoframe units
buf[9] = 0x00; //
buf[10] = 0x00; // PFrame rate in PFrame/key frame units.
buf[11] = 0x00; //
buf[12] = 0x00; // Compression quality control in abstract units 1 to 10000.
buf[13] = 0x00; //
buf[14] = 0x00; // Window size for average bit rate control.
buf[15] = 0x00; // Window size for average bit rate control.
buf[16] = 0x00; // Internal video streaming interface latency in ms.
buf[17] = 0x00; //
buf[18] = 0x00; // Maximum video frame or codec-specific segment size in bytes (ro)
buf[19] = 0x00; //
buf[20] = 0x00; //
buf[21] = 0x00; //
buf[22] = 0x00; // Specifies the maximum number of bytes (ro)
buf[23] = 0x00; //
buf[24] = 0x00; //
buf[25] = 0x00; //
// VS_PROBE_CONTROL(0x01), SET_CUR(0x01) [UVC1.5, p. 161, 158]
libusb_control_transfer(handle, 0x21, 0x01, 0x0100, 0x0001, buf, 26, TIMEOUT);
// VS_PROBE_CONTROL(0x01), GET_MIN(0x82) [UVC1.5, p. 161, 158]
libusb_control_transfer(handle, 0xa1, 0x82, 0x0100, 0x0001, buf, 26, TIMEOUT);
#if DEBUG
for (i=0; i<26; i++)
{
fprintf(stderr, "%02x ", buf[i]);
}
fprintf(stderr, "\n");
#endif
// VS_COMMIT_CONTROL(0x02), SET_CUR(0x01) [UVC1.5, p. 161, 158]
libusb_control_transfer(handle, 0x21, 0x01, 0x0200, 0x0001, buf, 26, TIMEOUT);
// ------------------------------------------------------------
// set interface, set alt interface [USB2.0, p. 250]
// claim an interface in a given libusb_handle.
if (libusb_claim_interface(handle, uvc.IfNum) != 0)
{
fprintf(stderr, "claim interface failed.\n");
}
// activate an alternate setting for an interface.
if (libusb_set_interface_alt_setting(handle, uvc.IfNum, uvc.AltIfNum) != 0)
{
fprintf(stderr, "activate an alternate setting failed.\n");
}
// ------------------------------------------------------------
// BSW20K07HWH.dump_curr_config_desc.txt $B$G$_$k$H(B
// UCAM-DLY300TA.dump_curr_config_desc.txt $B$G$_$k$H(B
//
// Entity ID $B$O(B bUnitID $B$H$7$F<($5$l$F$$$k!%(B
// $B$?$H$($P(B <VC_PROCESSING_UNIT> $B$r>e5-$N%G%#%9%/%j%W%?$NNc$G$_$k$H(B
// $B$$$:$l$b(B bUnitID: 02 $B$H$J$C$F$$$k$3$H$,$o$+$k!%(B
// PU_GAMMA_CONTROL(0x09), GET_MIN(0x82) [UVC1.5, p. 160, 100, 96]
#if 0
// EU_MIN_FRAME_INTERVAL_CONTROL(0x04), SET_CUR(0x01) [UVC1.5, p. 160, 100, 86]
buf[0] = 0x2a; // Frame interval in 100ns
buf[1] = 0x2c; // propose: 0x000a2c2a (66ms)
buf[2] = 0x0a; //
buf[3] = 0x00; //
libusb_control_transfer(handle, 0x21, 0x01, 0x0400, 0x0001, buf, 4, TIMEOUT);
libusb_control_transfer(handle, 0xa1, 0x81, 0x0400, 0x0001, buf, 4, TIMEOUT);
fprintf(stderr, "intval cur: 0x%02x%02x%02x%02x\n", buf[3], buf[2], buf[1], buf[0]);
#endif
// CT_AE_PRIORITY_CONTROL(0x03), SET_CUR(0x01) [UVC1.5, p. 159, 100, 86]
// libusb_control_transfer(handle, 0x21, 0x01, 0x0300, 0x0100, buf, 4, TIMEOUT);
// CT_AE_MODE_CONTROL(0x02), GET_CUR(0x81) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x81, 0x0200, 0x0100, buf, 1, TIMEOUT);
fprintf(stderr, "CT_AE_MODE_CONTROL: 0x%02x\n", buf[0]);
// CT_AE_PRIORITY_CONTROL(0x03), GET_CUR(0x81) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x81, 0x0300, 0x0100, buf, 1, TIMEOUT);
fprintf(stderr, "CT_AE_PRIORITY_CONTROL: 0x%02x\n", buf[0]);
// CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL(0x04), GET_CUR(0x81) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x81, 0x0400, 0x0100, buf, 4, TIMEOUT);
fprintf(stderr, "CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL(cur): 0x%02x%02x%02x%02x\n", buf[3], buf[2], buf[1], buf[0]);
// CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL(0x04), GET_MIN(0x82) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x82, 0x0400, 0x0100, buf, 4, TIMEOUT);
fprintf(stderr, "CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL(min): 0x%02x%02x%02x%02x\n", buf[3], buf[2], buf[1], buf[0]);
// CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL(0x04), GET_MAX(0x83) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x83, 0x0400, 0x0100, buf, 4, TIMEOUT);
fprintf(stderr, "CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL(max): 0x%02x%02x%02x%02x\n", buf[3], buf[2], buf[1], buf[0]);
// CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL(0x04), GET_MAX(0x84) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x84, 0x0400, 0x0100, buf, 4, TIMEOUT);
fprintf(stderr, "CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL(res): 0x%02x%02x%02x%02x\n", buf[3], buf[2], buf[1], buf[0]);
// CT_AE_EXPOSURE_TIME_RELATIVE_CONTROL(0x05), GET_CUR(0x81) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x81, 0x0500, 0x0100, buf, 1, TIMEOUT);
fprintf(stderr, "CT_AE_EXPOSURE_TIME_RELATIVE_CONTROL(cur): 0x%02x\n", buf[0]);
// CT_AE_EXPOSURE_TIME_RELATIVE_CONTROL(0x05), GET_MIN(0x82) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x82, 0x0500, 0x0100, buf, 1, TIMEOUT);
fprintf(stderr, "CT_AE_EXPOSURE_TIME_RELATIVE_CONTROL(min): 0x%02x\n", buf[0]);
// CT_AE_EXPOSURE_TIME_RELATIVE_CONTROL(0x05), GET_MAX(0x83) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x83, 0x0500, 0x0100, buf, 1, TIMEOUT);
fprintf(stderr, "CT_AE_EXPOSURE_TIME_RELATIVE_CONTROL(max): 0x%02x\n", buf[0]);
// CT_AE_EXPOSURE_TIME_RELATIVE_CONTROL(0x05), GET_RES(0x84) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x84, 0x0500, 0x0100, buf, 1, TIMEOUT);
fprintf(stderr, "CT_AE_EXPOSURE_TIME_RELATIVE_CONTROL(res): 0x%02x\n", buf[0]);
#if 1
buf[0] = 0x08; // 0x01 / 0x08
// CT_AE_MODE_CONTROL(0x02), SET_CUR(0x01) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0x21, 0x01, 0x0200, 0x0100, buf, 1, TIMEOUT);
buf[0] = 0x00;
// CT_AE_PRIORITY_CONTROL(0x03), SET_CUR(0x01) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0x21, 0x01, 0x0300, 0x0100, buf, 1, TIMEOUT);
buf[0] = 0x08;
buf[1] = 0x00;
buf[2] = 0x00;
buf[3] = 0x00;
// CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL(0x04), SET_CUR(0x01) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0x21, 0x01, 0x0400, 0x0100, buf, 4, TIMEOUT);
buf[0] = 0x01;
// CT_AE_EXPOSURE_TIME_RELATIVE_CONTROL(0x05), SET_CUR(0x01) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0x21, 0x01, 0x0500, 0x0100, buf, 1, TIMEOUT);
// CT_AE_MODE_CONTROL(0x02), GET_CUR(0x81) [UVC1.5, p. 159, 100, 86]
libusb_control_transfer(handle, 0xa1, 0x81, 0x0200, 0x0100, buf, 1, TIMEOUT);
fprintf(stderr, "CT_AE_MODE_CONTROL: 0x%02x\n", buf[0]);
// CT_AE_EXPOSURE_TIME_ABSOLUTE_CONTROL $B$G$OHO0O$r1[$($kCM$r@_(B
// $BDj$9$k$H$-$A$s$H:F@_Dj$7$J$$$H@5$7$$I=<($H$J$i$J$$!%(B
// AE $B$r%^%K%e%"%k$K@_Dj$9$k$H%*!<%H$N;~$NL@$k$5$r:F8=$G$-$J$$(B
// $B$N$O$J$<$+!)(B
#endif
// ------------------------------------------------------------
// do an isochronous transfer
for (i=0; i<NUM_TRANSFER; i++)
{
xfers[i] = libusb_alloc_transfer(PKTS_PER_XFER);
uint8_t *data = malloc(PKT_LEN*PKTS_PER_XFER);
libusb_fill_iso_transfer(
xfers[i], handle, uvc.Endpoint,
data, PKT_LEN*PKTS_PER_XFER, PKTS_PER_XFER,
cb, NULL, 0);
libusb_set_iso_packet_lengths(xfers[i], PKT_LEN);
}
for (i=0; i<NUM_TRANSFER; i++)
{
if (libusb_submit_transfer(xfers[i]) != 0)
{
fprintf(stderr, "submit xfer failed.\n");
}
}
gettimeofday(&tv1, &tz);
while (1) {
libusb_handle_events(ctx);
}
}
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