Add libva to chromium third_party.

third_party/libva/test/v4l_h264/encode/capture.cpp

+/*
+ * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * This example is based on: http://linuxtv.org/downloads/v4l-dvb-apis/capture-example.html
+ *  V4L2 video capture example
+ *      This program is provided with the V4L2 API
+ * see http://linuxtv.org/docs.php for more information
+*/
+
+#include <cstdlib> /* EXIT_FAILURE, EXIT_SUCCESS */
+#include <string>
+#include <cstring> /* strerror() */
+#include <cassert>
+#include <getopt.h> /* getopt_long() */
+#include <fcntl.h> /* low-level i/o */
+#include <errno.h>
+#include <unistd.h>
+#include <malloc.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+#include <csignal>
+
+#include <iostream>
+#include <linux/videodev2.h>
+
+using std::string;
+
+#include "TCPSocketClient.h"
+
+
+extern bool g_Force_P_Only;
+extern bool g_ShowNumber;
+extern bool g_LiveView;
+char device_settings_buffer[255];
+char *device_settings = NULL;
+int  g_Debug = 0;
+int  g_Numerator = 0;
+int  g_FrameRate = 0;
+TCPSocketClient *sock_ptr = NULL;
+std::string ip_name = "localhost";
+int   ip_port = 8888;
+extern int g_PX;
+extern int g_PY;
+extern int win2_width;
+extern int win2_height;
+
+
+
+
+int   encoder_init(int width, int height);
+int   encode_frame(unsigned char *inbuf);
+void  encoder_close();
+
+#define CLEAR(x) memset (&(x), 0, sizeof (x))
+
+typedef enum {
+    IO_METHOD_READ,
+    IO_METHOD_MMAP,
+    IO_METHOD_USERPTR,
+} io_method;
+
+struct buffer {
+    void * start;
+    size_t length;
+};
+
+static char * dev_name = NULL;
+static io_method io = IO_METHOD_MMAP;
+static int fd = -1;
+struct buffer * buffers = NULL;
+static unsigned int n_buffers = 0;
+static unsigned int width = 176;
+static unsigned int height = 144;
+static unsigned int pixelformat = V4L2_PIX_FMT_YUYV;
+
+static int time_to_quit = 0;
+static void SignalHandler(int a_Signal)
+{
+    time_to_quit = 1;
+    signal(SIGINT, SIG_DFL);
+}
+
+static void
+    errno_exit (const char * s)
+{
+    std::cerr << s << " error " << errno << ", " << strerror(errno) << '\n';
+    exit (EXIT_FAILURE);
+}
+
+static int xioctl (int fd, int request, void * arg)
+{
+    int r;
+    do r = ioctl (fd, request, arg);
+    while (-1 == r && EINTR == errno);
+    return r;
+}
+
+
+static void
+    process_image (const void * p, ssize_t size)
+{
+    const size_t src_frame_size = (width*height) + height*(width >> 1) + height*(width >> 1);
+    if (size != src_frame_size){
+        std::cerr << "wrong buffer size: " << size << "; expect: " << src_frame_size << '\n';
+        return;
+    }
+    if (!encode_frame((unsigned char *)p))
+        time_to_quit = 1;
+}
+
+static int
+    read_frame (void)
+{
+    struct v4l2_buffer buf;
+    unsigned int i;
+    switch (io) {
+    case IO_METHOD_READ:
+        if (-1 == read (fd, buffers[0].start, buffers[0].length)) {
+            switch (errno) {
+            case EAGAIN:
+                return 0;
+            case EIO:
+                /* Could ignore EIO, see spec. */
+                /* fall through */
+            default:
+                errno_exit ("read");
+            }
+        }
+        process_image (buffers[0].start, buffers[0].length);
+        break;
+
+    case IO_METHOD_MMAP:
+        CLEAR (buf);
+
+        buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+        buf.memory = V4L2_MEMORY_MMAP;
+
+        if (-1 == xioctl (fd, VIDIOC_DQBUF, &buf)) {
+            switch (errno) {
+            case EAGAIN:
+                return 0;
+
+            case EIO:
+                /* Could ignore EIO, see spec. */
+                /* fall through */
+            default:
+                errno_exit ("VIDIOC_DQBUF");
+            }
+        }
+
+        assert (buf.index < n_buffers);
+
+        process_image (buffers[buf.index].start, buf.length);
+
+        if (-1 == xioctl (fd, VIDIOC_QBUF, &buf))
+            errno_exit ("VIDIOC_QBUF");
+
+        break;
+
+    case IO_METHOD_USERPTR:
+        CLEAR (buf);
+
+        buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+        buf.memory = V4L2_MEMORY_USERPTR;
+
+        if (-1 == xioctl (fd, VIDIOC_DQBUF, &buf)) {
+            switch (errno) {
+            case EAGAIN:
+                return 0;
+
+            case EIO:
+                /* Could ignore EIO, see spec. */
+                /* fall through */
+            default:
+                errno_exit ("VIDIOC_DQBUF");
+            }
+        }
+
+        for (i = 0; i < n_buffers; ++i)
+            if (buf.m.userptr == (unsigned long) buffers[i].start && buf.length == buffers[i].length)
+                break;
+
+        assert (i < n_buffers);
+        process_image ((void *) buf.m.userptr, buf.length);
+        if (-1 == xioctl (fd, VIDIOC_QBUF, &buf))
+            errno_exit ("VIDIOC_QBUF");
+
+        break;
+    }
+
+    return 1;
+}
+
+static void
+    mainloop (void)
+{
+    while (!time_to_quit) {
+        for (;;) {
+            fd_set fds;
+            struct timeval tv;
+            int r;
+
+            FD_ZERO (&fds);
+            FD_SET (fd, &fds);
+
+            /* Timeout. */
+            tv.tv_sec = 5;
+            tv.tv_usec = 0;
+
+            r = select (fd + 1, &fds, NULL, NULL, &tv);
+
+            if (-1 == r) {
+                if (EINTR == errno)
+                    continue;
+
+                errno_exit ("select");
+            }
+
+            if (0 == r) {
+                std::cerr << "select timeout\n";
+                exit (EXIT_FAILURE);
+            }
+
+            if (read_frame ())
+                break;
+
+            /* EAGAIN - continue select loop. */
+        }
+    }
+}
+
+static void
+    stop_capturing (void)
+{
+    enum v4l2_buf_type type;
+
+    switch (io) {
+    case IO_METHOD_READ:
+        /* Nothing to do. */
+        break;
+
+    case IO_METHOD_MMAP:
+    case IO_METHOD_USERPTR:
+        type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+        if (-1 == xioctl (fd, VIDIOC_STREAMOFF, &type))
+            errno_exit ("VIDIOC_STREAMOFF");
+
+        break;
+    }
+}
+
+static void
+    start_capturing (void)
+{
+    unsigned int i;
+    enum v4l2_buf_type type;
+
+    switch (io) {
+    case IO_METHOD_READ:
+        /* Nothing to do. */
+        break;
+
+    case IO_METHOD_MMAP:
+        for (i = 0; i < n_buffers; ++i) {
+            struct v4l2_buffer buf;
+
+            CLEAR (buf);
+
+            buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+            buf.memory = V4L2_MEMORY_MMAP;
+            buf.index = i;
+
+            if (-1 == xioctl (fd, VIDIOC_QBUF, &buf))
+                errno_exit ("VIDIOC_QBUF");
+        }
+
+        type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+        if (-1 == xioctl (fd, VIDIOC_STREAMON, &type))
+            errno_exit ("VIDIOC_STREAMON");
+
+        break;
+
+    case IO_METHOD_USERPTR:
+        for (i = 0; i < n_buffers; ++i) {
+            struct v4l2_buffer buf;
+
+            CLEAR (buf);
+
+            buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+            buf.memory = V4L2_MEMORY_USERPTR;
+            buf.index = i;
+            buf.m.userptr = (unsigned long) buffers[i].start;
+            buf.length = buffers[i].length;
+
+            if (-1 == xioctl (fd, VIDIOC_QBUF, &buf))
+                errno_exit ("VIDIOC_QBUF");
+        }
+
+        type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+        if (-1 == xioctl (fd, VIDIOC_STREAMON, &type))
+            errno_exit ("VIDIOC_STREAMON");
+
+        break;
+    }
+}
+
+static void uninit_device (void)
+{
+    unsigned int i;
+
+    switch (io) {
+    case IO_METHOD_READ:
+        free (buffers[0].start);
+        break;
+
+    case IO_METHOD_MMAP:
+        for (i = 0; i < n_buffers; ++i)
+            if (-1 == munmap (buffers[i].start, buffers[i].length))
+                errno_exit ("munmap");
+        break;
+
+    case IO_METHOD_USERPTR:
+        for (i = 0; i < n_buffers; ++i)
+            free (buffers[i].start);
+        break;
+    }
+
+    free (buffers);
+}
+
+static void init_read (unsigned int buffer_size)
+{
+    buffers = (buffer*)calloc (1, sizeof (*buffers));
+
+    if (!buffers) {
+        std::cerr << "Out of memory\n";
+        exit (EXIT_FAILURE);
+    }
+
+    buffers[0].length = buffer_size;
+    buffers[0].start = malloc (buffer_size);
+
+    if (!buffers[0].start) {
+        std::cerr << "Out of memory\n";
+        exit (EXIT_FAILURE);
+    }
+}
+
+static void init_mmap (void)
+{
+    struct v4l2_requestbuffers req;
+
+    CLEAR (req);
+
+    req.count = 4;
+    req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+    req.memory = V4L2_MEMORY_MMAP;
+
+    if (-1 == xioctl (fd, VIDIOC_REQBUFS, &req)) {
+        if (EINVAL == errno) {
+            std::cerr << dev_name << " does not support "
+                << "memory mapping\n";
+            exit (EXIT_FAILURE);
+        } else {
+            errno_exit ("VIDIOC_REQBUFS");
+        }
+    }
+
+    if (req.count < 2) {
+        std::cerr << "Insufficient buffer memory on " << dev_name << '\n';
+        exit (EXIT_FAILURE);
+    }
+
+    buffers = (buffer*)calloc (req.count, sizeof (*buffers));
+
+    if (!buffers) {
+        std::cerr << "Out of memory\n";
+        exit (EXIT_FAILURE);
+    }
+
+    for (n_buffers = 0; n_buffers < req.count; ++n_buffers) {
+        struct v4l2_buffer buf;
+        CLEAR (buf);
+        buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+        buf.memory = V4L2_MEMORY_MMAP;
+        buf.index = n_buffers;
+        if (-1 == xioctl (fd, VIDIOC_QUERYBUF, &buf))
+            errno_exit ("VIDIOC_QUERYBUF");
+        buffers[n_buffers].length = buf.length;
+        buffers[n_buffers].start =
+            mmap (NULL /* start anywhere */,
+            buf.length,
+            PROT_READ | PROT_WRITE /* required */,
+            MAP_SHARED /* recommended */,
+            fd, buf.m.offset);
+
+        if (MAP_FAILED == buffers[n_buffers].start)
+            errno_exit ("mmap");
+    }
+}
+
+static void init_userp (unsigned int buffer_size)
+{
+    struct v4l2_requestbuffers req;
+    unsigned int page_size;
+    page_size = getpagesize ();
+    buffer_size = (buffer_size + page_size - 1) & ~(page_size - 1);
+    CLEAR (req);
+    req.count = 4;
+    req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+    req.memory = V4L2_MEMORY_USERPTR;
+    if (-1 == xioctl (fd, VIDIOC_REQBUFS, &req)) {
+        if (EINVAL == errno) {
+            std::cerr << dev_name << " does not support "
+                << "user pointer i/o\n";
+            exit (EXIT_FAILURE);
+        } else {
+            errno_exit ("VIDIOC_REQBUFS");
+        }
+    }
+    buffers = (buffer*) calloc (4, sizeof (*buffers));
+    if (!buffers) {
+        std::cerr << "Out of memory\n";
+        exit (EXIT_FAILURE);
+    }
+    for (n_buffers = 0; n_buffers < 4; ++n_buffers) {
+        buffers[n_buffers].length = buffer_size;
+        buffers[n_buffers].start = memalign (/* boundary */ page_size,
+            buffer_size);
+
+        if (!buffers[n_buffers].start) {
+            std::cerr << "Out of memory\n";
+            exit (EXIT_FAILURE);
+        }
+    }
+}
+
+static void init_device (void)
+{
+    struct v4l2_capability cap;
+    struct v4l2_cropcap cropcap;
+    struct v4l2_crop crop;
+    struct v4l2_format fmt;
+    unsigned int min;
+    if (-1 == xioctl (fd, VIDIOC_QUERYCAP, &cap)) {
+        if (EINVAL == errno) {
+            std::cerr << dev_name << " is no V4L2 device\n";
+            exit (EXIT_FAILURE);
+        } else {
+            errno_exit ("VIDIOC_QUERYCAP");
+        }
+    }
+
+    if (!(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE)) {
+        std::cerr << dev_name << " is no video capture device\n";
+        exit (EXIT_FAILURE);
+    }
+
+    switch (io) {
+    case IO_METHOD_READ:
+        if (!(cap.capabilities & V4L2_CAP_READWRITE)) {
+            std::cerr << dev_name << " does not support read i/o\n";
+            exit (EXIT_FAILURE);
+        }
+
+        break;
+    case IO_METHOD_MMAP:
+    case IO_METHOD_USERPTR:
+        if (!(cap.capabilities & V4L2_CAP_STREAMING)) {
+            std::cerr << dev_name << " does not support streaming i/o\n";
+            exit (EXIT_FAILURE);
+        }
+        break;
+    }
+    /* Select video input, video standard and tune here. */
+    CLEAR (cropcap);
+    cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+    if (0 == xioctl (fd, VIDIOC_CROPCAP, &cropcap)) {
+        crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+        crop.c = cropcap.defrect; /* reset to default */
+        if (-1 == xioctl (fd, VIDIOC_S_CROP, &crop)) {
+            switch (errno) {
+            case EINVAL:
+                /* Cropping not supported. */
+                break;
+            default:
+                /* Errors ignored. */
+                break;
+            }
+        }
+    } else {
+        /* Errors ignored. */
+    }
+    struct v4l2_fmtdesc     fmtdesc;
+    printf("video capture\n");
+    for (int i = 0;; i++) {
+        memset(&fmtdesc,0,sizeof(fmtdesc));
+        fmtdesc.index = i;
+        fmtdesc.type  = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+        if (-1 == xioctl (fd, VIDIOC_ENUM_FMT,&fmtdesc))
+            break;
+        printf("    VIDIOC_ENUM_FMT(%d,VIDEO_CAPTURE)\n",i);
+        printf("pfmt: 0x%x %s\n",fmtdesc.pixelformat,fmtdesc.description);
+    if (fmtdesc.pixelformat != 0x56595559) {
+         printf("   => don't list not supported format\n");
+         continue;
+    }
+        for (int k = 0;; k++) {
+            struct v4l2_frmsizeenum frmsize;
+            memset(&frmsize,0,sizeof(frmsize));
+            frmsize.index = k;
+            frmsize.pixel_format = fmtdesc.pixelformat;
+            if (-1 == xioctl (fd, VIDIOC_ENUM_FRAMESIZES,&frmsize))
+                break;
+            if (frmsize.type== V4L2_FRMSIZE_TYPE_DISCRETE) {
+                printf("       VIDIOC_ENUM_FRAMESIZES(%d,0x%x) %dx%d  @",k, frmsize.type, frmsize.discrete.width, frmsize.discrete.height);
+                for (int l = 0;; l++) {
+                    struct v4l2_frmivalenum frmrate;
+                    memset(&frmrate, 0, sizeof(frmrate));
+                    frmrate.index = l;
+                    frmrate.pixel_format = fmtdesc.pixelformat;
+                    frmrate.width = frmsize.discrete.width;
+                    frmrate.height = frmsize.discrete.height;
+                    if (-1 == xioctl (fd, VIDIOC_ENUM_FRAMEINTERVALS,&frmrate))
+                        break;
+                    if (frmrate.type == V4L2_FRMIVAL_TYPE_DISCRETE) {
+                        printf(" %u/%u ", frmrate.discrete.numerator, frmrate.discrete.denominator);
+                    }
+                }
+                printf("\n");
+            }
+        }
+    }
+    CLEAR (fmt);
+    fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+    if (-1 == xioctl (fd, VIDIOC_G_FMT, &fmt))
+        errno_exit ("VIDIOC_G_FMT");
+    printf("video: %dx%d; fourcc:0x%x\n", fmt.fmt.pix.width, fmt.fmt.pix.height, fmt.fmt.pix.pixelformat);
+    if (fmt.fmt.pix.width != width || fmt.fmt.pix.height != height || (fmt.fmt.pix.pixelformat != pixelformat)){
+        struct v4l2_pix_format def_format;
+        memcpy(&def_format, &fmt.fmt.pix, sizeof(struct v4l2_pix_format));
+        fmt.fmt.pix.width = width;
+        fmt.fmt.pix.height = height;
+        fmt.fmt.pix.pixelformat = pixelformat;
+        if (-1 == xioctl (fd, VIDIOC_S_FMT, &fmt)){
+            std::cerr << "failed to set resolution " << fmt.fmt.pix.width << "x" << fmt.fmt.pix.height << '\n';
+            errno_exit ("VIDIOC_S_FMT");
+        }
+    }
+    if (-1 == xioctl (fd, VIDIOC_S_FMT, &fmt))
+        errno_exit ("VIDIOC_S_FMT");
+
+    CLEAR (fmt);
+    fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+    if (-1 == xioctl (fd, VIDIOC_G_FMT, &fmt))
+        errno_exit ("VIDIOC_G_FMT");
+    printf("video: %dx%d; fourcc:0x%x\n", fmt.fmt.pix.width, fmt.fmt.pix.height, fmt.fmt.pix.pixelformat);
+  if (fmt.fmt.pix.width != width || fmt.fmt.pix.height != height || fmt.fmt.pix.pixelformat != pixelformat){
+        errno_exit ("VIDIOC_S_FMT not set !");
+  }
+
+    /* Buggy driver paranoia. */
+    min = fmt.fmt.pix.width * 2;
+    if (fmt.fmt.pix.bytesperline < min)
+        fmt.fmt.pix.bytesperline = min;
+    min = fmt.fmt.pix.bytesperline * fmt.fmt.pix.height;
+    if (fmt.fmt.pix.sizeimage < min)
+        fmt.fmt.pix.sizeimage = min;
+    struct v4l2_streamparm capp;
+    CLEAR(capp);
+    capp.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+    if (g_FrameRate) {
+        if (-1 == xioctl (fd, VIDIOC_G_PARM, &capp) == -1) {
+            errno_exit ("VIDIOC_G_PARM");
+        }
+        printf("vidioc_s_parm called frate=%d/%d\n", capp.parm.capture.timeperframe.numerator, capp.parm.capture.timeperframe.denominator);
+        capp.parm.capture.timeperframe.numerator = g_Numerator;
+        capp.parm.capture.timeperframe.denominator = g_FrameRate;
+        printf("vidioc_s_parm set: frate=%d/%d\n", capp.parm.capture.timeperframe.numerator, capp.parm.capture.timeperframe.denominator);
+        if (-1 == xioctl (fd, VIDIOC_S_PARM, &capp) == -1) {
+            errno_exit ("VIDIOC_S_PARM");
+        }
+        if (-1 == xioctl (fd, VIDIOC_G_PARM, &capp) == -1) {
+            errno_exit ("VIDIOC_G_PARM");
+        }
+        if ((capp.parm.capture.timeperframe.numerator != g_Numerator) || (
+        capp.parm.capture.timeperframe.denominator != g_FrameRate)) {
+            errno_exit ("VIDIOC_S_PARM NOT SET");
+        }
+    } else {
+        if (-1 == xioctl (fd, VIDIOC_G_PARM, &capp) == -1) {
+            errno_exit ("VIDIOC_G_PARM");
+        }
+    }
+    sprintf(device_settings_buffer,"%dx%d@%d/%d", width, height, capp.parm.capture.timeperframe.numerator, capp.parm.capture.timeperframe.denominator);
+  device_settings = &device_settings_buffer[0];
+  printf("INFO: %s\n", device_settings);
+
+
+    switch (io) {
+    case IO_METHOD_READ:
+        init_read (fmt.fmt.pix.sizeimage);
+        break;
+
+    case IO_METHOD_MMAP:
+        init_mmap ();
+        break;
+
+    case IO_METHOD_USERPTR:
+        init_userp (fmt.fmt.pix.sizeimage);
+        break;
+    }
+}
+
+static void
+    close_device (void)
+{
+    if (-1 == close (fd))
+        errno_exit ("close");
+
+    fd = -1;
+}
+
+static void open_device (void)
+{
+    struct stat st;
+
+    if (-1 == stat (dev_name, &st)) {
+        std::cerr << "Cannot identify '" << dev_name << "': " << errno << ", " << strerror(errno) << '\n';
+        exit (EXIT_FAILURE);
+    }
+
+    if (!S_ISCHR (st.st_mode)) {
+        std::cerr << dev_name << " is no device\n";
+        exit (EXIT_FAILURE);
+    }
+
+    fd = open (dev_name, O_RDWR /* required */ | O_NONBLOCK, 0);
+
+    if (-1 == fd) {
+        std::cerr << "Cannot open '" << dev_name << "': " << errno << ", " << strerror(errno) << '\n';
+        exit (EXIT_FAILURE);
+    }
+}
+
+static void usage (std::ostream &o, int argc, char ** argv)
+{
+    o << "Usage: " << argv[0] << " [options]\n"
+        "\n"
+        "Options:\n"
+        "-?, --help             Print this message\n"
+        "-d, --device=NAME      Video device name ["<< dev_name<< "]\n"
+        "-i, --ip=IP            Target ip [localhost]\n"
+        "-p, --port=PORT        Target port [" << ip_port << "]\n"
+        "-m, --mmap             Use memory mapped buffers\n"
+        "-r, --read             Use read() calls\n"
+        "-u, --userp            Use application allocated buffers\n"
+        "-N, --no-number        Disable OSD\n"
+        "-P, --progressive      Force P frames only\n"
+        "-l, --liveview-off     Live View off\n"
+        "-f, --framerate=FPS    Framerate [no limit]\n"
+        "-w, --width=WIDTH      Window width [" << win2_width << "]\n"
+        "-h, --height=HEIGHT    Window height [" << win2_height << "]\n"
+        "-x, --posx=POS_X       X position [WM handles placement]\n"
+        "-y, --posy=POS_Y       Y position [WM handles placement]\n"
+        "-n, --numerator=NUM    Numerator [no limit]\n"
+        "-W, --dev-width=WIDTH  Device width ["<< width << "]\n"
+        "-H, --dev-height=HEIGHT  Device height [" << height << "]\n"
+        "-D, --debug=LEVEL      Debug level [" << g_Debug << "]\n"
+        "\n";
+}
+
+void InitSock()
+{
+    printf("Using: %s:%d\n", ip_name.c_str(), ip_port);
+    try {
+        sock_ptr = new TCPSocketClient(ip_name, ip_port);
+    }
+    catch (const std::exception& e)
+    {
+        printf("%s\n", e.what());
+        exit(1);
+    }
+}
+
+
+static const char short_options [] = "d:i:p:?mruNPlf:w:h:x:y:n:W:H:D:";
+
+static const struct option
+    long_options [] = {
+        { "device",        required_argument, NULL, 'd' },
+        { "ip",            required_argument, NULL, 'i' },
+        { "port",          required_argument, NULL, 'p' },
+        { "help",          no_argument,       NULL, '?' },
+        { "mmap",          no_argument,       NULL, 'm' },
+        { "read",          no_argument,       NULL, 'r' },
+        { "userp",         no_argument,       NULL, 'u' },
+        { "no-number",     no_argument,       NULL, 'N' },
+        { "progressive",   no_argument,       NULL, 'P' },
+        { "liveview-off",  no_argument,       NULL, 'l' },
+        { "framerate",     required_argument, NULL, 'f' },
+        { "width",         required_argument, NULL, 'w' },
+        { "height",        required_argument, NULL, 'h' },
+        { "posx",          required_argument, NULL, 'x' },
+        { "posy",          required_argument, NULL, 'y' },
+        { "numerator",     required_argument, NULL, 'n' },
+        { "dev-width",     required_argument, NULL, 'W' },
+        { "dev-height",    required_argument, NULL, 'H' },
+        { "debug",         required_argument, NULL, 'D' },
+        { 0, 0, 0, 0 }
+};
+
+int
+    main (int argc, char ** argv)
+{
+    width = 640;
+    height = 480;
+    dev_name = (char*)"/dev/video0";
+
+    for (;;) {
+        int index;
+        int c;
+
+        c = getopt_long (argc, argv,
+            short_options, long_options,
+            &index);
+
+        if (-1 == c)
+            break;
+
+        switch (c) {
+        case 0: /* getopt_long() flag */
+            break;
+
+        case 'd':
+            dev_name = optarg;
+            break;
+        case 'i':
+            ip_name = optarg;
+            break;
+        case 'p':
+            ip_port = atoi(optarg);
+            break;
+        case '?':
+            usage (std::cout, argc, argv);
+            exit (EXIT_SUCCESS);
+        case 'm':
+            io = IO_METHOD_MMAP;
+            break;
+        case 'r':
+            io = IO_METHOD_READ;
+            break;
+        case 'u':
+            io = IO_METHOD_USERPTR;
+            break;
+        case 'N':
+            g_ShowNumber = false;
+            break;
+        case 'P':
+            g_Force_P_Only = true;
+            break;
+        case 'l':
+            g_LiveView = false;
+            break;
+        case 'f':
+            g_FrameRate = atoi(optarg);
+            if (!g_Numerator) g_Numerator = 1;
+            break;
+        case 'w':
+            win2_width = atoi(optarg);
+            break;
+        case 'h':
+            win2_height = atoi(optarg);
+            break;
+        case 'x':
+            g_PX = atoi(optarg);
+            break;
+        case 'y':
+            g_PY = atoi(optarg);
+            break;
+        case 'n':
+            g_Numerator = atoi(optarg);
+            break;
+        case 'W':
+            width = atoi(optarg);
+            break;
+        case 'H':
+            height = atoi(optarg);
+            break;
+        case 'D':
+            g_Debug = atoi(optarg);
+            break;
+        default:
+            usage (std::cerr, argc, argv);
+            exit (EXIT_FAILURE);
+        }
+    }
+    if (g_Debug) {
+        printf("Capture: %dx%d %d/%d\n", width, height, g_Numerator, g_FrameRate);
+        printf("Win: %dx%d (%d,%d)\n", win2_width, win2_height, g_PX, g_PY);
+    }
+
+    if(signal(SIGINT, SignalHandler) == SIG_ERR){
+        printf("signal() failed\n");
+        time_to_quit = 1;
+    }
+    InitSock();
+    open_device();
+    pixelformat = V4L2_PIX_FMT_YUYV;
+    init_device ();
+    printf("negotiated frame resolution: %dx%d\n", width, height);
+
+    if (!encoder_init(width, height)) {
+        start_capturing ();
+        mainloop ();
+        stop_capturing ();
+        encoder_close();
+    } else {
+        printf("Error: encoder init !\n");
+    }
+    uninit_device ();
+    close_device ();
+    delete sock_ptr;
+    return 0;
+}