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video_v4l2.c
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video_v4l2.c
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/*
* video2.c
*
* V4L2 interface with basically JPEG decompression support and even more ...
* Copyright 2006 Krzysztof Blaszkowski ([email protected])
* 2007 Angel Carpintero ([email protected])
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "rotate.h" /* Already includes motion.h */
#include "video_common.h"
#include "video_v4l2.h"
#include <sys/mman.h>
#ifdef HAVE_V4L2
#include <linux/videodev2.h>
/* video4linux stuff */
#define NORM_DEFAULT 0
#define NORM_PAL 0
#define NORM_NTSC 1
#define NORM_SECAM 2
#define NORM_PAL_NC 3
#define IN_TV 0
#define IN_COMPOSITE 1
#define IN_COMPOSITE2 2
#define IN_SVIDEO 3
#define u8 unsigned char
#define u16 unsigned short
#define u32 unsigned int
#define s32 signed int
#define MMAP_BUFFERS 4
#define MIN_MMAP_BUFFERS 2
#ifndef V4L2_PIX_FMT_SBGGR8
#define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B','A','8','1') /* 8 BGBG.. GRGR.. */
#endif
#ifndef V4L2_PIX_FMT_MJPEG
#define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M','J','P','G') /* Motion-JPEG */
#endif
#ifndef V4L2_PIX_FMT_SN9C10X
#define V4L2_PIX_FMT_SN9C10X v4l2_fourcc('S','9','1','0') /* SN9C10x compression */
#endif
#ifndef V4L2_PIX_FMT_SGBRG8
#define V4L2_PIX_FMT_SGBRG8 v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */
#endif
#ifndef V4L2_PIX_FMT_SGRBG8
#define V4L2_PIX_FMT_SGRBG8 v4l2_fourcc('G', 'R', 'B', 'G') /* 8 GRGR.. BGBG.. */
#endif
#ifndef V4L2_PIX_FMT_SBGGR16
#define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */
#endif
#ifndef V4L2_PIX_FMT_SPCA561
#define V4L2_PIX_FMT_SPCA561 v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */
#endif
#ifndef V4L2_PIX_FMT_PJPG
#define V4L2_PIX_FMT_PJPG v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */
#endif
#ifndef V4L2_PIX_FMT_PAC207
#define V4L2_PIX_FMT_PAC207 v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */
#endif
#ifndef V4L2_PIX_FMT_SPCA501
#define V4L2_PIX_FMT_SPCA501 v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */
#endif
#ifndef V4L2_PIX_FMT_SPCA505
#define V4L2_PIX_FMT_SPCA505 v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */
#endif
#ifndef V4L2_PIX_FMT_SPCA508
#define V4L2_PIX_FMT_SPCA508 v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */
#endif
#ifndef V4L2_PIX_FMT_Y10
#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */
#endif
#ifndef V4L2_PIX_FMT_Y12
#define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale */
#endif
#ifndef V4L2_PIX_FMT_GREY
#define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */
#endif
#ifndef V4L2_PIX_FMT_H264
#define V4L2_PIX_FMT_H264 v4l2_fourcc('H', '2', '6', '4') /* H264 */
#endif
#define ZC301_V4L2_CID_DAC_MAGN V4L2_CID_PRIVATE_BASE
#define ZC301_V4L2_CID_GREEN_BALANCE (V4L2_CID_PRIVATE_BASE+1)
#define V4L2_PALETTE_COUNT_MAX 21
static pthread_mutex_t v4l2_mutex;
static struct video_dev *viddevs = NULL;
typedef struct video_image_buff {
unsigned char *ptr;
int content_length;
size_t size; /* total allocated size */
size_t used; /* bytes already used */
struct timeval image_time; /* time this image was received */
} video_buff;
static const u32 queried_ctrls[] = {
V4L2_CID_BRIGHTNESS,
V4L2_CID_CONTRAST,
V4L2_CID_SATURATION,
V4L2_CID_HUE,
V4L2_CID_POWER_LINE_FREQUENCY,
V4L2_CID_RED_BALANCE,
V4L2_CID_BLUE_BALANCE,
V4L2_CID_GAMMA,
V4L2_CID_EXPOSURE,
V4L2_CID_AUTOGAIN,
V4L2_CID_GAIN,
ZC301_V4L2_CID_DAC_MAGN,
ZC301_V4L2_CID_GREEN_BALANCE,
0
};
typedef struct {
int fd_device;
u32 fps;
struct v4l2_capability cap;
struct v4l2_format src_fmt;
struct v4l2_format dst_fmt;
struct v4l2_requestbuffers req;
struct v4l2_buffer buf;
video_buff *buffers;
s32 pframe;
u32 ctrl_flags;
struct v4l2_queryctrl *controls;
volatile unsigned int *finish; /* End the thread */
} src_v4l2_t;
typedef struct palette_item_struct{
u32 v4l2id;
char fourcc[5];
} palette_item;
static void v4l2_palette_init(palette_item *palette_array){
/* When adding here, update the max defined as V4L2_PALETTE_COUNT_MAX above */
palette_array[0].v4l2id = V4L2_PIX_FMT_SN9C10X;
palette_array[1].v4l2id = V4L2_PIX_FMT_SBGGR16;
palette_array[2].v4l2id = V4L2_PIX_FMT_SBGGR8;
palette_array[3].v4l2id = V4L2_PIX_FMT_SPCA561;
palette_array[4].v4l2id = V4L2_PIX_FMT_SGBRG8;
palette_array[5].v4l2id = V4L2_PIX_FMT_SGRBG8;
palette_array[6].v4l2id = V4L2_PIX_FMT_PAC207;
palette_array[7].v4l2id = V4L2_PIX_FMT_PJPG;
palette_array[8].v4l2id = V4L2_PIX_FMT_MJPEG;
palette_array[9].v4l2id = V4L2_PIX_FMT_JPEG;
palette_array[10].v4l2id = V4L2_PIX_FMT_RGB24;
palette_array[11].v4l2id = V4L2_PIX_FMT_SPCA501;
palette_array[12].v4l2id = V4L2_PIX_FMT_SPCA505;
palette_array[13].v4l2id = V4L2_PIX_FMT_SPCA508;
palette_array[14].v4l2id = V4L2_PIX_FMT_UYVY;
palette_array[15].v4l2id = V4L2_PIX_FMT_YUYV;
palette_array[16].v4l2id = V4L2_PIX_FMT_YUV422P;
palette_array[17].v4l2id = V4L2_PIX_FMT_YUV420; /* most efficient for motion */
palette_array[18].v4l2id = V4L2_PIX_FMT_Y10;
palette_array[19].v4l2id = V4L2_PIX_FMT_Y12;
palette_array[20].v4l2id = V4L2_PIX_FMT_GREY;
palette_array[21].v4l2id = V4L2_PIX_FMT_H264;
sprintf(palette_array[0].fourcc ,"%s", "S910");
sprintf(palette_array[1].fourcc ,"%s", "BYR2");
sprintf(palette_array[2].fourcc ,"%s", "BA81");
sprintf(palette_array[3].fourcc ,"%s", "S561");
sprintf(palette_array[4].fourcc ,"%s", "GBRG");
sprintf(palette_array[5].fourcc ,"%s", "GRBG");
sprintf(palette_array[6].fourcc ,"%s", "P207");
sprintf(palette_array[7].fourcc ,"%s", "PJPG");
sprintf(palette_array[8].fourcc ,"%s", "MJPG");
sprintf(palette_array[9].fourcc ,"%s", "JPEG");
sprintf(palette_array[10].fourcc ,"%s", "RGB3");
sprintf(palette_array[11].fourcc ,"%s", "S501");
sprintf(palette_array[12].fourcc ,"%s", "S505");
sprintf(palette_array[13].fourcc ,"%s", "S508");
sprintf(palette_array[14].fourcc ,"%s", "UYVY");
sprintf(palette_array[15].fourcc ,"%s", "YUYV");
sprintf(palette_array[16].fourcc ,"%s", "422P");
sprintf(palette_array[17].fourcc ,"%s", "YU12"); /* most efficient for motion */
sprintf(palette_array[18].fourcc ,"%s", "Y10 ");
sprintf(palette_array[19].fourcc ,"%s", "Y12 ");
sprintf(palette_array[20].fourcc ,"%s", "GREY");
sprintf(palette_array[21].fourcc ,"%s", "H264");
}
/**
* xioctl
*/
#if defined (__OpenBSD__) || defined (__FreeBSD__)
static int xioctl(src_v4l2_t *vid_source, unsigned long request, void *arg)
#else
static int xioctl(src_v4l2_t *vid_source, int request, void *arg)
#endif
{
int ret;
do
ret = ioctl(vid_source->fd_device, request, arg);
while (-1 == ret && EINTR == errno && !vid_source->finish);
return ret;
}
static int v4l2_get_capability(src_v4l2_t * vid_source)
{
if (xioctl(vid_source, VIDIOC_QUERYCAP, &vid_source->cap) < 0) {
MOTION_LOG(ERR, TYPE_VIDEO, NO_ERRNO, "Not a V4L2 device?");
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "\n------------------------\n"
"cap.driver: \"%s\"\n"
"cap.card: \"%s\"\n"
"cap.bus_info: \"%s\"\n"
"cap.capabilities=0x%08X\n------------------------",
vid_source->cap.driver, vid_source->cap.card, vid_source->cap.bus_info,
vid_source->cap.capabilities);
if (vid_source->cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- VIDEO_CAPTURE");
if (vid_source->cap.capabilities & V4L2_CAP_VIDEO_OUTPUT)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- VIDEO_OUTPUT");
if (vid_source->cap.capabilities & V4L2_CAP_VIDEO_OVERLAY)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- VIDEO_OVERLAY");
if (vid_source->cap.capabilities & V4L2_CAP_VBI_CAPTURE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- VBI_CAPTURE");
if (vid_source->cap.capabilities & V4L2_CAP_VBI_OUTPUT)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- VBI_OUTPUT");
if (vid_source->cap.capabilities & V4L2_CAP_RDS_CAPTURE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- RDS_CAPTURE");
if (vid_source->cap.capabilities & V4L2_CAP_TUNER)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- TUNER");
if (vid_source->cap.capabilities & V4L2_CAP_AUDIO)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- AUDIO");
if (vid_source->cap.capabilities & V4L2_CAP_READWRITE)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- READWRITE");
if (vid_source->cap.capabilities & V4L2_CAP_ASYNCIO)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- ASYNCIO");
if (vid_source->cap.capabilities & V4L2_CAP_STREAMING)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- STREAMING");
if (vid_source->cap.capabilities & V4L2_CAP_TIMEPERFRAME)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- TIMEPERFRAME");
if (!(vid_source->cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
MOTION_LOG(ERR, TYPE_VIDEO, NO_ERRNO, "Device does not support capturing.");
return -1;
}
return 0;
}
static int v4l2_select_input(struct config *conf, struct video_dev *viddev,
src_v4l2_t * vid_source, int in, int norm,
unsigned long freq_, int tuner_number ATTRIBUTE_UNUSED)
{
struct v4l2_input input;
struct v4l2_standard standard;
v4l2_std_id std_id;
/* Set the input. */
memset(&input, 0, sizeof (input));
if (in == DEF_INPUT)
input.index = IN_TV;
else input.index = in;
if (xioctl(vid_source, VIDIOC_ENUMINPUT, &input) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Unable to query input %d."
" VIDIOC_ENUMINPUT, if you use a WEBCAM change input value in conf by -1",
input.index);
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "name = \"%s\", type 0x%08X,"
" status %08x", input.name, input.type, input.status);
if (input.type & V4L2_INPUT_TYPE_TUNER)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- TUNER");
if (input.type & V4L2_INPUT_TYPE_CAMERA)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- CAMERA");
if (xioctl(vid_source, VIDIOC_S_INPUT, &input.index) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Error selecting input %d"
" VIDIOC_S_INPUT", input.index);
return -1;
}
viddev->input = conf->input = in;
/*
* Set video standard usually webcams doesn't support the ioctl or
* return V4L2_STD_UNKNOWN
*/
if (xioctl(vid_source, VIDIOC_G_STD, &std_id) == -1) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "Device does not support specifying PAL/NTSC norm");
norm = std_id = 0; // V4L2_STD_UNKNOWN = 0
}
if (std_id) {
memset(&standard, 0, sizeof(standard));
standard.index = 0;
while (xioctl(vid_source, VIDIOC_ENUMSTD, &standard) == 0) {
if (standard.id & std_id)
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "- video standard %s",
standard.name);
standard.index++;
}
switch (norm) {
case 1:
std_id = V4L2_STD_NTSC;
break;
case 2:
std_id = V4L2_STD_SECAM;
break;
default:
std_id = V4L2_STD_PAL;
}
if (xioctl(vid_source, VIDIOC_S_STD, &std_id) == -1)
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Error selecting standard"
" method %d VIDIOC_S_STD", (int)std_id);
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "Set standard method %d",
(int)std_id);
}
viddev->norm = conf->norm = norm;
/* If this input is attached to a tuner, set the frequency. */
if (input.type & V4L2_INPUT_TYPE_TUNER) {
struct v4l2_tuner tuner;
struct v4l2_frequency freq;
/* Query the tuners capabilities. */
memset(&tuner, 0, sizeof(struct v4l2_tuner));
tuner.index = input.tuner;
if (xioctl(vid_source, VIDIOC_G_TUNER, &tuner) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "tuner %d VIDIOC_G_TUNER",
tuner.index);
return 0;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "Set tuner %d",
tuner.index);
/* Set the frequency. */
memset(&freq, 0, sizeof(struct v4l2_frequency));
freq.tuner = input.tuner;
freq.type = V4L2_TUNER_ANALOG_TV;
freq.frequency = (freq_ / 1000) * 16;
if (xioctl(vid_source, VIDIOC_S_FREQUENCY, &freq) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "freq %ul VIDIOC_S_FREQUENCY",
freq.frequency);
return 0;
}
viddev->freq = conf->frequency = freq_;
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "Set Frequency to %ul",
freq.frequency);
} else {
viddev->freq = conf->frequency = 0;
}
return 0;
}
/* *
* v4l2_do_set_pix_format
*
* This routine does the actual request to the driver
*
* Returns: 0 Ok
* -1 Problems setting palette or not supported
*
* Our algorithm for setting the picture format for the data which the
* driver returns to us will be as follows:
*
* First, we request that the format be set to whatever is in the config
* file (which is either the motion default, or a value chosen by the user).
* If that request is successful, we are finished.
*
* If the driver responds that our request is not accepted, we then enumerate
* the formats which the driver claims to be able to supply. From this list,
* we choose whichever format is "most efficient" for motion. The enumerated
* list is also printed to the motion log so that the user can consider
* choosing a different value for the config file.
*
* We then request the driver to set the format we have chosen. That request
* should never fail, so if it does we log the fact and give up.
*/
static int v4l2_do_set_pix_format(u32 pixformat, src_v4l2_t * vid_source,
int *width, int *height)
{
CLEAR(vid_source->dst_fmt);
vid_source->dst_fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vid_source->dst_fmt.fmt.pix.width = *width;
vid_source->dst_fmt.fmt.pix.height = *height;
vid_source->dst_fmt.fmt.pix.pixelformat = pixformat;
vid_source->dst_fmt.fmt.pix.field = V4L2_FIELD_ANY;
if (xioctl(vid_source, VIDIOC_TRY_FMT, &vid_source->dst_fmt) != -1 &&
vid_source->dst_fmt.fmt.pix.pixelformat == pixformat) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "Testing palette %c%c%c%c (%dx%d)",
pixformat >> 0, pixformat >> 8,
pixformat >> 16, pixformat >> 24, *width, *height);
if (vid_source->dst_fmt.fmt.pix.width != (unsigned int) *width ||
vid_source->dst_fmt.fmt.pix.height != (unsigned int) *height) {
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO, "Adjusting resolution "
"from %ix%i to %ix%i.",
*width, *height, vid_source->dst_fmt.fmt.pix.width,
vid_source->dst_fmt.fmt.pix.height);
*width = vid_source->dst_fmt.fmt.pix.width;
*height = vid_source->dst_fmt.fmt.pix.height;
}
if (xioctl(vid_source, VIDIOC_S_FMT, &vid_source->dst_fmt) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Error setting pixel "
"format.\nVIDIOC_S_FMT: ");
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "Using palette %c%c%c%c (%dx%d)"
" bytesperlines %d sizeimage %d colorspace %08x", pixformat >> 0,
pixformat >> 8, pixformat >> 16, pixformat >> 24, *width,
*height, vid_source->dst_fmt.fmt.pix.bytesperline,
vid_source->dst_fmt.fmt.pix.sizeimage,
vid_source->dst_fmt.fmt.pix.colorspace);
return 0;
}
return -1;
}
static int v4l2_set_pix_format(struct context *cnt, src_v4l2_t * vid_source,
int *width, int *height)
{
struct v4l2_fmtdesc fmtd;
int v4l2_pal, indx_palette, indx, retcd;
palette_item *palette_array;
palette_array = malloc(sizeof(palette_item) * (V4L2_PALETTE_COUNT_MAX+1));
v4l2_palette_init(palette_array);
/* First we try setting the config file value */
indx_palette = cnt->conf.v4l2_palette;
if ((indx_palette >= 0) && (indx_palette <= V4L2_PALETTE_COUNT_MAX)) {
retcd = v4l2_do_set_pix_format(palette_array[indx_palette].v4l2id, vid_source, width, height);
if (retcd >= 0){
free(palette_array);
return 0;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "Configuration palette index %d (%s) doesn't work."
, indx_palette, palette_array[indx_palette].fourcc);
}
CLEAR(fmtd);
fmtd.index = v4l2_pal = 0;
fmtd.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
indx_palette = -1; /* -1 says not yet chosen */
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "Supported palettes:");
while (xioctl(vid_source, VIDIOC_ENUM_FMT, &fmtd) != -1) {
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "(%i) %c%c%c%c (%s)",
v4l2_pal, fmtd.pixelformat >> 0,
fmtd.pixelformat >> 8, fmtd.pixelformat >> 16,
fmtd.pixelformat >> 24, fmtd.description);
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "%d - %s (compressed : %d) (%#x)",
fmtd.index, fmtd.description, fmtd.flags, fmtd.pixelformat);
/* Adjust indx_palette if larger value found */
/* Prevent the selection of H264 since this module does not support it */
for (indx = 0; indx <= V4L2_PALETTE_COUNT_MAX; indx++)
if ((palette_array[indx].v4l2id == fmtd.pixelformat) &&
(palette_array[indx].v4l2id != V4L2_PIX_FMT_H264))
indx_palette = indx;
CLEAR(fmtd);
fmtd.index = ++v4l2_pal;
fmtd.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
}
if (indx_palette >= 0) {
retcd = v4l2_do_set_pix_format(palette_array[indx_palette].v4l2id, vid_source, width, height);
if (retcd >= 0){
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "Selected palette %s",palette_array[indx_palette].fourcc);
free(palette_array);
return 0;
}
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Palette selection failed for format %s"
, palette_array[indx_palette].fourcc);
}
MOTION_LOG(ERR, TYPE_VIDEO, NO_ERRNO, "Unable to find a compatible palette format.");
free(palette_array);
return -1;
}
static int v4l2_set_mmap(src_v4l2_t * vid_source)
{
enum v4l2_buf_type type;
u32 buffer_index;
/* Does the device support streaming? */
if (!(vid_source->cap.capabilities & V4L2_CAP_STREAMING))
return -1;
memset(&vid_source->req, 0, sizeof(struct v4l2_requestbuffers));
vid_source->req.count = MMAP_BUFFERS;
vid_source->req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vid_source->req.memory = V4L2_MEMORY_MMAP;
if (xioctl(vid_source, VIDIOC_REQBUFS, &vid_source->req) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Error requesting buffers"
" %d for memory map. VIDIOC_REQBUFS",
vid_source->req.count);
return -1;
}
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "mmap information: frames=%d",
vid_source->req.count);
if (vid_source->req.count < MIN_MMAP_BUFFERS) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Insufficient buffer memory"
" %d < MIN_MMAP_BUFFERS.", vid_source->req.count);
return -1;
}
vid_source->buffers = calloc(vid_source->req.count, sizeof(video_buff));
if (!vid_source->buffers) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Out of memory.");
return -1;
}
for (buffer_index = 0; buffer_index < vid_source->req.count; buffer_index++) {
struct v4l2_buffer buf;
memset(&buf, 0, sizeof(struct v4l2_buffer));
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = V4L2_MEMORY_MMAP;
buf.index = buffer_index;
if (xioctl(vid_source, VIDIOC_QUERYBUF, &buf) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Error querying buffer"
" %i\nVIDIOC_QUERYBUF: ", buffer_index);
free(vid_source->buffers);
return -1;
}
vid_source->buffers[buffer_index].size = buf.length;
vid_source->buffers[buffer_index].ptr = mmap(NULL, buf.length, PROT_READ | PROT_WRITE,
MAP_SHARED, vid_source->fd_device, buf.m.offset);
if (vid_source->buffers[buffer_index].ptr == MAP_FAILED) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Error mapping buffer %i mmap",
buffer_index);
free(vid_source->buffers);
return -1;
}
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "%i length=%d Address (%x)",
buffer_index, buf.length, vid_source->buffers[buffer_index].ptr);
}
for (buffer_index = 0; buffer_index < vid_source->req.count; buffer_index++) {
memset(&vid_source->buf, 0, sizeof(struct v4l2_buffer));
vid_source->buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vid_source->buf.memory = V4L2_MEMORY_MMAP;
vid_source->buf.index = buffer_index;
if (xioctl(vid_source, VIDIOC_QBUF, &vid_source->buf) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "VIDIOC_QBUF");
return -1;
}
}
type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if (xioctl(vid_source, VIDIOC_STREAMON, &type) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Error starting stream."
" VIDIOC_STREAMON");
return -1;
}
return 0;
}
static int v4l2_scan_controls(src_v4l2_t * vid_source)
{
int count, i;
struct v4l2_queryctrl queryctrl;
memset(&queryctrl, 0, sizeof(struct v4l2_queryctrl));
for (i = 0, count = 0; queried_ctrls[i]; i++) {
queryctrl.id = queried_ctrls[i];
if (xioctl(vid_source, VIDIOC_QUERYCTRL, &queryctrl))
continue;
count++;
vid_source->ctrl_flags |= 1 << i;
}
if (count) {
struct v4l2_queryctrl *ctrl = vid_source->controls
= calloc(count, sizeof(struct v4l2_queryctrl));
if (!ctrl) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Insufficient buffer memory.");
return -1;
}
for (i = 0; queried_ctrls[i]; i++) {
if (vid_source->ctrl_flags & (1 << i)) {
struct v4l2_control control;
queryctrl.id = queried_ctrls[i];
if (xioctl(vid_source, VIDIOC_QUERYCTRL, &queryctrl))
continue;
memcpy(ctrl, &queryctrl, sizeof(struct v4l2_queryctrl));
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "found control 0x%08x, \"%s\","
" range %d,%d %s",
ctrl->id, ctrl->name, ctrl->minimum, ctrl->maximum,
ctrl->flags & V4L2_CTRL_FLAG_DISABLED ? "!DISABLED!" : "");
memset(&control, 0, sizeof (control));
control.id = queried_ctrls[i];
xioctl(vid_source, VIDIOC_G_CTRL, &control);
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "\t\"%s\", default %d, current %d",
ctrl->name, ctrl->default_value, control.value);
ctrl++;
}
}
}
return 0;
}
static int v4l2_set_control(src_v4l2_t * vid_source, u32 cid, int value)
{
int i, count;
if (!vid_source->controls)
return -1;
for (i = 0, count = 0; queried_ctrls[i]; i++) {
if (vid_source->ctrl_flags & (1 << i)) {
if (cid == queried_ctrls[i]) {
struct v4l2_queryctrl *ctrl = vid_source->controls + count;
struct v4l2_control control;
int ret;
memset(&control, 0, sizeof (control));
control.id = queried_ctrls[i];
switch (ctrl->type) {
case V4L2_CTRL_TYPE_INTEGER:
value = control.value =
(value * (ctrl->maximum - ctrl->minimum) / 256) + ctrl->minimum;
ret = xioctl(vid_source, VIDIOC_S_CTRL, &control);
break;
case V4L2_CTRL_TYPE_BOOLEAN:
value = control.value = value ? 1 : 0;
ret = xioctl(vid_source, VIDIOC_S_CTRL, &control);
break;
case V4L2_CTRL_TYPE_MENU:
/* set as is, no adjustments */
control.value = value;
ret = xioctl(vid_source, VIDIOC_S_CTRL, &control);
break;
default:
MOTION_LOG(WRN, TYPE_VIDEO, NO_ERRNO, "control type not supported yet");
return -1;
}
MOTION_LOG(NTC, TYPE_VIDEO, NO_ERRNO, "setting control \"%s\" to %d"
" (ret %d %s) %s", ctrl->name, value, ret, ret ? strerror(errno) : "",
ctrl->flags & V4L2_CTRL_FLAG_DISABLED ? "Control is DISABLED!" : "");
return 0;
}
count++;
}
}
return -1;
}
static void v4l2_picture_controls(struct context *cnt, struct video_dev *viddev)
{
src_v4l2_t *vid_source = (src_v4l2_t *) viddev->v4l2_private;
if (cnt->conf.contrast && cnt->conf.contrast != viddev->contrast) {
viddev->contrast = cnt->conf.contrast;
v4l2_set_control(vid_source, V4L2_CID_CONTRAST, viddev->contrast);
}
if (cnt->conf.saturation && cnt->conf.saturation != viddev->saturation) {
viddev->saturation = cnt->conf.saturation;
v4l2_set_control(vid_source, V4L2_CID_SATURATION, viddev->saturation);
}
if (cnt->conf.hue && cnt->conf.hue != viddev->hue) {
viddev->hue = cnt->conf.hue;
v4l2_set_control(vid_source, V4L2_CID_HUE, viddev->hue);
}
/* -1 is don't modify as 0 is an option to disable the power line filter */
if (cnt->conf.power_line_frequency != -1 && cnt->conf.power_line_frequency != viddev->power_line_frequency) {
viddev->power_line_frequency = cnt->conf.power_line_frequency;
v4l2_set_control(vid_source, V4L2_CID_POWER_LINE_FREQUENCY, viddev->power_line_frequency);
}
if (cnt->conf.autobright) {
if (vid_do_autobright(cnt, viddev)) {
if (v4l2_set_control(vid_source, V4L2_CID_BRIGHTNESS, viddev->brightness))
v4l2_set_control(vid_source, V4L2_CID_GAIN, viddev->brightness);
}
} else {
if (cnt->conf.brightness && cnt->conf.brightness != viddev->brightness) {
viddev->brightness = cnt->conf.brightness;
if (v4l2_set_control(vid_source, V4L2_CID_BRIGHTNESS, viddev->brightness))
v4l2_set_control(vid_source, V4L2_CID_GAIN, viddev->brightness);
}
}
}
static unsigned char *v4l2_device_init(struct context *cnt, struct video_dev *viddev, int width, int height,
int input, int norm, unsigned long freq, int tuner_number)
{
src_v4l2_t *vid_source;
/* Allocate memory for the state structure. */
if (!(vid_source = calloc(sizeof(src_v4l2_t), 1))) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "Out of memory.");
goto err;
}
viddev->v4l2_private = vid_source;
vid_source->fd_device = viddev->fd_device;
vid_source->fps = cnt->conf.frame_limit;
vid_source->pframe = -1;
vid_source->finish = &cnt->finish;
struct config *conf = &cnt->conf;
if (v4l2_get_capability(vid_source))
goto err;
if (v4l2_select_input(conf, viddev, vid_source, input, norm, freq, tuner_number))
goto err;
if (v4l2_set_pix_format(cnt, vid_source, &width, &height))
goto err;
if (v4l2_scan_controls(vid_source))
goto err;
if (v4l2_set_mmap(vid_source))
goto err;
viddev->size_map = 0;
viddev->v4l_buffers[0] = NULL;
viddev->v4l_maxbuffer = 1;
viddev->v4l_curbuffer = 0;
viddev->v4l_fmt = VIDEO_PALETTE_YUV420P;
viddev->v4l_bufsize = (width * height * 3) / 2;
/* Update width and height with supported values from camera driver */
viddev->width = width;
viddev->height = height;
return (void *) 1;
err:
free(vid_source);
viddev->v4l2_private = NULL;
viddev->v4l2 = 0;
return NULL;
}
static int v4l2_capture(struct context *cnt, struct video_dev *viddev, unsigned char *map,
int width, int height)
{
sigset_t set, old;
src_v4l2_t *vid_source = (src_v4l2_t *) viddev->v4l2_private;
int shift = 0;
if (viddev->v4l_fmt != VIDEO_PALETTE_YUV420P)
return V4L2_FATAL_ERROR;
/* Block signals during IOCTL */
sigemptyset(&set);
sigaddset(&set, SIGCHLD);
sigaddset(&set, SIGALRM);
sigaddset(&set, SIGUSR1);
sigaddset(&set, SIGTERM);
sigaddset(&set, SIGHUP);
pthread_sigmask(SIG_BLOCK, &set, &old);
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "1) vid_source->pframe %i",
vid_source->pframe);
if (vid_source->pframe >= 0) {
if (xioctl(vid_source, VIDIOC_QBUF, &vid_source->buf) == -1) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "VIDIOC_QBUF");
pthread_sigmask(SIG_UNBLOCK, &old, NULL);
return -1;
}
}
memset(&vid_source->buf, 0, sizeof(struct v4l2_buffer));
vid_source->buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
vid_source->buf.memory = V4L2_MEMORY_MMAP;
vid_source->buf.bytesused = 0;
if (xioctl(vid_source, VIDIOC_DQBUF, &vid_source->buf) == -1) {
int ret;
/*
* Some drivers return EIO when there is no signal,
* driver might dequeue an (empty) buffer despite
* returning an error, or even stop capturing.
*/
if (errno == EIO) {
vid_source->pframe++;
if ((u32)vid_source->pframe >= vid_source->req.count)
vid_source->pframe = 0;
vid_source->buf.index = vid_source->pframe;
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "VIDIOC_DQBUF: EIO "
"(vid_source->pframe %d)", vid_source->pframe);
ret = 1;
} else if (errno == EAGAIN) {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "VIDIOC_DQBUF: EAGAIN"
" (vid_source->pframe %d)", vid_source->pframe);
ret = 1;
} else {
MOTION_LOG(ERR, TYPE_VIDEO, SHOW_ERRNO, "VIDIOC_DQBUF");
ret = -1;
}
pthread_sigmask(SIG_UNBLOCK, &old, NULL);
return ret;
}
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "2) vid_source->pframe %i",
vid_source->pframe);
vid_source->pframe = vid_source->buf.index;
vid_source->buffers[vid_source->buf.index].used = vid_source->buf.bytesused;
vid_source->buffers[vid_source->buf.index].content_length = vid_source->buf.bytesused;
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "3) vid_source->pframe %i "
"vid_source->buf.index %i", vid_source->pframe, vid_source->buf.index);
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "vid_source->buf.bytesused %i",
vid_source->buf.bytesused);
pthread_sigmask(SIG_UNBLOCK, &old, NULL); /*undo the signal blocking */
{
video_buff *the_buffer = &vid_source->buffers[vid_source->buf.index];
MOTION_LOG(DBG, TYPE_VIDEO, NO_ERRNO, "the_buffer index %d Address (%x)",
vid_source->buf.index, the_buffer->ptr);
switch (vid_source->dst_fmt.fmt.pix.pixelformat) {
case V4L2_PIX_FMT_RGB24:
vid_rgb24toyuv420p(map, the_buffer->ptr, width, height);
return 0;
case V4L2_PIX_FMT_UYVY:
vid_uyvyto420p(map, the_buffer->ptr, (unsigned)width, (unsigned)height);
return 0;
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_YUV422P:
vid_yuv422to420p(map, the_buffer->ptr, width, height);
return 0;
case V4L2_PIX_FMT_YUV420:
memcpy(map, the_buffer->ptr, viddev->v4l_bufsize);
return 0;
case V4L2_PIX_FMT_PJPG:
case V4L2_PIX_FMT_JPEG:
case V4L2_PIX_FMT_MJPEG:
return vid_mjpegtoyuv420p(map, the_buffer->ptr, width, height,
vid_source->buffers[vid_source->buf.index].content_length);
/* FIXME: quick hack to allow work all bayer formats */
case V4L2_PIX_FMT_SBGGR16:
case V4L2_PIX_FMT_SGBRG8:
case V4L2_PIX_FMT_SGRBG8:
/* case V4L2_PIX_FMT_SPCA561: */
case V4L2_PIX_FMT_SBGGR8: /* bayer */
vid_bayer2rgb24(cnt->imgs.common_buffer, the_buffer->ptr, width, height);
vid_rgb24toyuv420p(map, cnt->imgs.common_buffer, width, height);
return 0;
case V4L2_PIX_FMT_SPCA561:
case V4L2_PIX_FMT_SN9C10X:
vid_sonix_decompress(map, the_buffer->ptr, width, height);
vid_bayer2rgb24(cnt->imgs.common_buffer, map, width, height);
vid_rgb24toyuv420p(map, cnt->imgs.common_buffer, width, height);
return 0;
case V4L2_PIX_FMT_Y12:
shift += 2;
case V4L2_PIX_FMT_Y10:
shift += 2;
vid_y10torgb24(cnt->imgs.common_buffer, the_buffer->ptr, width, height, shift);
vid_rgb24toyuv420p(map, cnt->imgs.common_buffer, width, height);
return 0;
case V4L2_PIX_FMT_GREY:
vid_greytoyuv420p(map, the_buffer->ptr, width, height);
return 0;
}
}
return 1;
}
static void v4l2_set_input(struct context *cnt, struct video_dev *viddev, unsigned char *map,
int width, int height, struct config *conf)
{
int input = conf->input;
int norm = conf->norm;
unsigned long freq = conf->frequency;
int tuner_number = conf->tuner_number;
if (input != viddev->input || width != viddev->width || height != viddev->height ||
freq != viddev->freq || tuner_number != viddev->tuner_number || norm != viddev->norm) {