试试看行不行，上一篇下载的FFMPEG 不能替换，

感谢楼主分享哇！啥也不说了，

我来学习学习，谢谢分享

6++++++++++++++++++++++++++++++++++++++++++++++++++++++

#include <libudev.h>
#include <stdio.h>
#include <stdlib.h>
#include <locale.h>
#include <unistd.h>

int main (void)
{
struct udev *udev;
struct udev_enumerate *enumerate;
struct udev_list_entry *devices, *dev_list_entry;
struct udev_device *dev;

/* Create the udev object */
udev = udev_new();
if (!udev) {
  printf("Can't create udev\n");
  exit(1);
}

/* Create a list of the devices in the 'hidraw' subsystem. */
enumerate = udev_enumerate_new(udev);
udev_enumerate_add_match_subsystem(enumerate, "block");
udev_enumerate_scan_devices(enumerate);
devices = udev_enumerate_get_list_entry(enumerate);
/* For each item enumerated, print out its information.
    udev_list_entry_foreach is a macro which expands to
    a loop. The loop will be executed for each member in
    devices, setting dev_list_entry to a list entry
    which contains the device's path in /sys. */
udev_list_entry_foreach(dev_list_entry, devices) {
  const char *path;
  
  /* Get the filename of the /sys entry for the device
     and create a udev_device object (dev) representing it */
  path = udev_list_entry_get_name(dev_list_entry);
  dev = udev_device_new_from_syspath(udev, path);

  /* usb_device_get_devnode() returns the path to the device node
     itself in /dev. */
  printf("Device Node Path: %s\n", udev_device_get_devnode(dev));

  /* The device pointed to by dev contains information about
     the hidraw device. In order to get information about the
     USB device, get the parent device with the
     subsystem/devtype pair of "usb"/"usb_device". This will
     be several levels up the tree, but the function will find
     it.*/
  dev = udev_device_get_parent_with_subsystem_devtype(
         dev,
         "usb",
         "usb_device");
  if (!dev) {
   printf("Unable to find parent usb device.");
   exit(1);
  }

  /* From here, we can call get_sysattr_value() for each file
     in the device's /sys entry. The strings passed into these
     functions (idProduct, idVendor, serial, etc.) correspond
     directly to the files in the directory which represents
     the USB device. Note that USB strings are Unicode, UCS2
     encoded, but the strings returned from
     udev_device_get_sysattr_value() are UTF-8 encoded. */
  printf("  VID/PID: %s %s\n",
          udev_device_get_sysattr_value(dev,"idVendor"),
          udev_device_get_sysattr_value(dev, "idProduct"));
  printf("  %s\n  %s\n",
          udev_device_get_sysattr_value(dev,"manufacturer"),
          udev_device_get_sysattr_value(dev,"product"));
  printf("  serial: %s\n",
           udev_device_get_sysattr_value(dev, "serial"));
  udev_device_unref(dev);
}
/* Free the enumerator object */
udev_enumerate_unref(enumerate);

udev_unref(udev);

return 0;      
}

看一下哈。。。怎么做

啥也不说了，感谢楼主分享哇！

啥也不说了，感谢楼主分享哇！

#在这里快速回复#感谢楼主分享。。。。。。

简单来说就是安装 ffmpeg 之后， ssh 连接到群晖，执行下面两条命令

1. sudo rm -f /usr/bin/ffmpeg
   
2. 
   
3. sudo ln -s /volume1/@appstore/ffmpeg/bin/ffmpeg /usr/bin/ffmpeg

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