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/sys/class/drm/renderD*/device/device is Linux-only, so use a BSD extension
to get vendor/device identifiers from rendor nodes. Based on libdrm code.
$ ffmpeg -hide_banner -init_hw_device qsv=auto -i foo.y4m -vf hwupload=extra_hw_frames=64,format=qsv -c:v h264_qsv -y foo.mkv
[AVHWDeviceContext @ 0x8062d0140] Error initializing an MFX session: -3.
Device creation failed: -1313558101.
Failed to set value 'qsv=auto' for option 'init_hw_device': Unknown error occurred
Error parsing global options: Unknown error occurred
--- dispatcher/linux/device_ids.h.orig 2021-12-17 04:19:18 UTC
+++ dispatcher/linux/device_ids.h
@@ -377,7 +377,62 @@ static inline eMFXHWType get_platform(unsigned int dev
return MFX_HW_UNKNOWN;
}
+#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__OpenBSD__)
+#if defined(__FreeBSD__) && __FreeBSD__ < 13
+#include <sys/sysctl.h>
+#else
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+#endif // defined(__FreeBSD__) && __FreeBSD__ < 13
+
+struct drm_pciinfo {
+ uint16_t domain;
+ uint8_t bus;
+ uint8_t dev;
+ uint8_t func;
+ uint16_t vendor_id;
+ uint16_t device_id;
+ uint16_t subvendor_id;
+ uint16_t subdevice_id;
+ uint8_t revision_id;
+};
+
+#define DRM_IOCTL_BASE 'd'
+#define DRM_IOR(nr,type) _IOR(DRM_IOCTL_BASE,nr,type)
+#define DRM_IOCTL_GET_PCIINFO DRM_IOR(0x15, struct drm_pciinfo)
+#endif
+
static mfxStatus get_devices(std::vector<Device> &allDevices) {
+#ifdef DRM_IOCTL_GET_PCIINFO
+ std::vector <Device> result;
+ for (int i = 0; i < 64; ++i) {
+#if defined(__FreeBSD__) && __FreeBSD__ < 13
+ std::string mib = "dev.drm." + std::to_string(128 + i) + ".PCI_ID";
+ char pci_id[20];
+ size_t len = sizeof(pci_id);
+ if (sysctlbyname(mib.c_str(), pci_id, &len, NULL, 0)) continue;
+ Device device;
+ sscanf(pci_id, "%x:%x", &device.vendor_id, &device.device_id);
+#else
+ std::string path = "/dev/dri/renderD" + std::to_string(128 + i);
+ int fd = open(path.c_str(), O_RDONLY);
+ if (fd == -1) continue;
+ struct drm_pciinfo pinfo;
+ if (ioctl(fd, DRM_IOCTL_GET_PCIINFO, &pinfo)) {
+ close(fd);
+ continue;
+ }
+ Device device = { .vendor_id = pinfo.vendor_id, .device_id = pinfo.device_id };
+ close(fd);
+#endif // defined(__FreeBSD__) && __FreeBSD__ < 13
+ if (device.vendor_id != 0x8086) { // Filter out non-Intel devices
+ continue;
+ }
+ device.platform = get_platform(device.device_id);
+ allDevices.emplace_back(device);
+ }
+#else
const char *dir = "/sys/class/drm";
const char *device_id_file = "/device/device";
const char *vendor_id_file = "/device/vendor";
@@ -413,6 +468,7 @@ static mfxStatus get_devices(std::vector<Device> &allD
allDevices.emplace_back(device);
}
+#endif
// sort by platform, unknown will appear at beginning
std::sort(allDevices.begin(), allDevices.end(), [](const Device &a, const Device &b) {
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