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video_core/codecs: fix multiple decoding issues on Linux ...
* when someone installed Intel video drivers on an AMD system, the decoder will select the Intel VA-API decoding driver and yuzu will crash due to incorrect driver selection; the fix will check if the currently about-to-use driver is loaded in the kernel * when using NVIDIA driver on Linux with a ffmpeg that does not have CUDA capability enabled, the decoder will crash; the fix simply making the decoder prefers the VDPAU driver over CUDA on Linux
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parent
cd6cf0422d
commit
72aa418b0b
1 changed files with 47 additions and 2 deletions
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@ -2,6 +2,7 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <cstdio>
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#include <fstream>
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#include <vector>
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#include "common/assert.h"
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@ -59,6 +60,36 @@ Codec::~Codec() {
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av_buffer_unref(&av_gpu_decoder);
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}
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#ifdef LIBVA_FOUND
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// List all the currently loaded Linux modules
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static std::vector<std::string> ListLinuxKernelModules() {
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std::vector<std::string> modules{};
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auto module_listing = fopen("/proc/modules", "rt");
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char* buffer = nullptr;
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size_t buf_len = 0;
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if (!module_listing) {
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LOG_WARNING(Service_NVDRV, "Could not open /proc/modules to collect available modules");
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return modules;
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}
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while (getline(&buffer, &buf_len, module_listing) != -1) {
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// format for the module listing file (sysfs)
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// <name> <module_size> <depended_by_count> <depended_by_names> <status> <load_address>
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auto line = std::string(buffer);
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// we are only interested in module names
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auto name_pos = line.find_first_of(" ");
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if (name_pos == std::string::npos) {
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continue;
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}
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modules.push_back(line.erase(name_pos + 1));
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}
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if (buffer) {
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free(buffer);
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}
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fclose(module_listing);
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return modules;
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}
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#endif
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bool Codec::CreateGpuAvDevice() {
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#if defined(LIBVA_FOUND)
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static constexpr std::array<const char*, 3> VAAPI_DRIVERS = {
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@ -67,8 +98,21 @@ bool Codec::CreateGpuAvDevice() {
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"amdgpu",
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};
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AVDictionary* hwdevice_options = nullptr;
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auto loaded_modules = ListLinuxKernelModules();
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av_dict_set(&hwdevice_options, "connection_type", "drm", 0);
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for (const auto& driver : VAAPI_DRIVERS) {
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bool found = false;
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// first check if the target driver is loaded in the kernel
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for (const auto& module : loaded_modules) {
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if (module == driver) {
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found = true;
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break;
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}
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}
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if (!found) {
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LOG_DEBUG(Service_NVDRV, "Kernel driver {} is not loaded, trying the next one", driver);
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continue;
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}
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av_dict_set(&hwdevice_options, "kernel_driver", driver, 0);
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const int hwdevice_error = av_hwdevice_ctx_create(&av_gpu_decoder, AV_HWDEVICE_TYPE_VAAPI,
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nullptr, hwdevice_options, 0);
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@ -85,11 +129,12 @@ bool Codec::CreateGpuAvDevice() {
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#endif
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static constexpr auto HW_CONFIG_METHOD = AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX;
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static constexpr std::array GPU_DECODER_TYPES{
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#ifdef linux
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AV_HWDEVICE_TYPE_VDPAU,
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#endif
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AV_HWDEVICE_TYPE_CUDA,
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#ifdef _WIN32
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AV_HWDEVICE_TYPE_D3D11VA,
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#else
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AV_HWDEVICE_TYPE_VDPAU,
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#endif
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};
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for (const auto& type : GPU_DECODER_TYPES) {
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