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@@ -5,6 +5,7 @@
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#include <fstream>
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#include <vector>
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#include "common/assert.h"
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+#include "common/settings.h"
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#include "video_core/command_classes/codecs/codec.h"
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#include "video_core/command_classes/codecs/h264.h"
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#include "video_core/command_classes/codecs/vp9.h"
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@@ -16,108 +17,146 @@ extern "C" {
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}
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namespace Tegra {
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-#if defined(LIBVA_FOUND)
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-// Hardware acceleration code from FFmpeg/doc/examples/hw_decode.c originally under MIT license
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namespace {
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-constexpr std::array<const char*, 2> VAAPI_DRIVERS = {
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- "i915",
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- "amdgpu",
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-};
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+constexpr AVPixelFormat PREFERRED_GPU_FMT = AV_PIX_FMT_NV12;
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+constexpr AVPixelFormat PREFERRED_CPU_FMT = AV_PIX_FMT_YUV420P;
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+
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+void AVPacketDeleter(AVPacket* ptr) {
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+ av_packet_free(&ptr);
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+}
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-AVPixelFormat GetHwFormat(AVCodecContext*, const AVPixelFormat* pix_fmts) {
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+using AVPacketPtr = std::unique_ptr<AVPacket, decltype(&AVPacketDeleter)>;
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+
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+AVPixelFormat GetGpuFormat(AVCodecContext* av_codec_ctx, const AVPixelFormat* pix_fmts) {
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for (const AVPixelFormat* p = pix_fmts; *p != AV_PIX_FMT_NONE; ++p) {
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- if (*p == AV_PIX_FMT_VAAPI) {
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- return AV_PIX_FMT_VAAPI;
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+ if (*p == av_codec_ctx->pix_fmt) {
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+ return av_codec_ctx->pix_fmt;
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}
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}
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LOG_INFO(Service_NVDRV, "Could not find compatible GPU AV format, falling back to CPU");
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- return *pix_fmts;
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+ av_buffer_unref(&av_codec_ctx->hw_device_ctx);
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+ av_codec_ctx->pix_fmt = PREFERRED_CPU_FMT;
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+ return PREFERRED_CPU_FMT;
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+}
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+} // namespace
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+
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+void AVFrameDeleter(AVFrame* ptr) {
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+ av_frame_free(&ptr);
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}
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-bool CreateVaapiHwdevice(AVBufferRef** av_hw_device) {
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+Codec::Codec(GPU& gpu_, const NvdecCommon::NvdecRegisters& regs)
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+ : gpu(gpu_), state{regs}, h264_decoder(std::make_unique<Decoder::H264>(gpu)),
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+ vp9_decoder(std::make_unique<Decoder::VP9>(gpu)) {}
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+
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+Codec::~Codec() {
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+ if (!initialized) {
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+ return;
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+ }
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+ // Free libav memory
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+ avcodec_free_context(&av_codec_ctx);
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+ av_buffer_unref(&av_gpu_decoder);
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+}
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+
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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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+ "i915",
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+ "iHD",
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+ "amdgpu",
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+ };
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AVDictionary* hwdevice_options = nullptr;
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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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av_dict_set(&hwdevice_options, "kernel_driver", driver, 0);
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- const int hwdevice_error = av_hwdevice_ctx_create(av_hw_device, AV_HWDEVICE_TYPE_VAAPI,
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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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if (hwdevice_error >= 0) {
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LOG_INFO(Service_NVDRV, "Using VA-API with {}", driver);
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av_dict_free(&hwdevice_options);
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+ av_codec_ctx->pix_fmt = AV_PIX_FMT_VAAPI;
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return true;
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}
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LOG_DEBUG(Service_NVDRV, "VA-API av_hwdevice_ctx_create failed {}", hwdevice_error);
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}
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LOG_DEBUG(Service_NVDRV, "VA-API av_hwdevice_ctx_create failed for all drivers");
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av_dict_free(&hwdevice_options);
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- return false;
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-}
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-} // namespace
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#endif
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-
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-void AVFrameDeleter(AVFrame* ptr) {
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- av_frame_free(&ptr);
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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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+ 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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+ const int hwdevice_res = av_hwdevice_ctx_create(&av_gpu_decoder, type, nullptr, nullptr, 0);
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+ if (hwdevice_res < 0) {
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+ LOG_DEBUG(Service_NVDRV, "{} av_hwdevice_ctx_create failed {}",
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+ av_hwdevice_get_type_name(type), hwdevice_res);
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+ continue;
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+ }
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+ for (int i = 0;; i++) {
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+ const AVCodecHWConfig* config = avcodec_get_hw_config(av_codec, i);
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+ if (!config) {
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+ LOG_DEBUG(Service_NVDRV, "{} decoder does not support device type {}.",
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+ av_codec->name, av_hwdevice_get_type_name(type));
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+ break;
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+ }
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+ if (config->methods & HW_CONFIG_METHOD && config->device_type == type) {
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+ av_codec_ctx->pix_fmt = config->pix_fmt;
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+ LOG_INFO(Service_NVDRV, "Using {} GPU decoder", av_hwdevice_get_type_name(type));
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+ return true;
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+ }
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+ }
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+ }
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+ return false;
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}
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-Codec::Codec(GPU& gpu_, const NvdecCommon::NvdecRegisters& regs)
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- : gpu(gpu_), state{regs}, h264_decoder(std::make_unique<Decoder::H264>(gpu)),
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- vp9_decoder(std::make_unique<Decoder::VP9>(gpu)) {}
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-
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-Codec::~Codec() {
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- if (!initialized) {
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- return;
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- }
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- // Free libav memory
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- avcodec_send_packet(av_codec_ctx, nullptr);
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- AVFrame* av_frame = av_frame_alloc();
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- avcodec_receive_frame(av_codec_ctx, av_frame);
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- avcodec_flush_buffers(av_codec_ctx);
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- av_frame_free(&av_frame);
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- avcodec_close(av_codec_ctx);
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- av_buffer_unref(&av_hw_device);
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+void Codec::InitializeAvCodecContext() {
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+ av_codec_ctx = avcodec_alloc_context3(av_codec);
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+ av_opt_set(av_codec_ctx->priv_data, "tune", "zerolatency", 0);
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}
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-void Codec::InitializeHwdec() {
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- // Prioritize integrated GPU to mitigate bandwidth bottlenecks
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-#if defined(LIBVA_FOUND)
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- if (CreateVaapiHwdevice(&av_hw_device)) {
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- const auto hw_device_ctx = av_buffer_ref(av_hw_device);
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- ASSERT_MSG(hw_device_ctx, "av_buffer_ref failed");
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- av_codec_ctx->hw_device_ctx = hw_device_ctx;
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- av_codec_ctx->get_format = GetHwFormat;
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+void Codec::InitializeGpuDecoder() {
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+ if (!CreateGpuAvDevice()) {
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+ av_buffer_unref(&av_gpu_decoder);
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return;
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}
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-#endif
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- // TODO more GPU accelerated decoders
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+ auto* hw_device_ctx = av_buffer_ref(av_gpu_decoder);
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+ ASSERT_MSG(hw_device_ctx, "av_buffer_ref failed");
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+ av_codec_ctx->hw_device_ctx = hw_device_ctx;
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+ av_codec_ctx->get_format = GetGpuFormat;
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}
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void Codec::Initialize() {
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- AVCodecID codec;
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- switch (current_codec) {
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- case NvdecCommon::VideoCodec::H264:
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- codec = AV_CODEC_ID_H264;
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- break;
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- case NvdecCommon::VideoCodec::Vp9:
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- codec = AV_CODEC_ID_VP9;
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- break;
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- default:
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- UNIMPLEMENTED_MSG("Unknown codec {}", current_codec);
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+ const AVCodecID codec = [&] {
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+ switch (current_codec) {
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+ case NvdecCommon::VideoCodec::H264:
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+ return AV_CODEC_ID_H264;
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+ case NvdecCommon::VideoCodec::Vp9:
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+ return AV_CODEC_ID_VP9;
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+ default:
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+ UNIMPLEMENTED_MSG("Unknown codec {}", current_codec);
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+ return AV_CODEC_ID_NONE;
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+ }
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+ }();
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+ av_codec = avcodec_find_decoder(codec);
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+
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+ InitializeAvCodecContext();
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+ if (Settings::values.nvdec_emulation.GetValue() == Settings::NvdecEmulation::GPU) {
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+ InitializeGpuDecoder();
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+ }
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+ if (const int res = avcodec_open2(av_codec_ctx, av_codec, nullptr); res < 0) {
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+ LOG_ERROR(Service_NVDRV, "avcodec_open2() Failed with result {}", res);
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+ avcodec_free_context(&av_codec_ctx);
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+ av_buffer_unref(&av_gpu_decoder);
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return;
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}
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- av_codec = avcodec_find_decoder(codec);
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- av_codec_ctx = avcodec_alloc_context3(av_codec);
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- av_opt_set(av_codec_ctx->priv_data, "tune", "zerolatency", 0);
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- InitializeHwdec();
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if (!av_codec_ctx->hw_device_ctx) {
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LOG_INFO(Service_NVDRV, "Using FFmpeg software decoding");
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}
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- const auto av_error = avcodec_open2(av_codec_ctx, av_codec, nullptr);
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- if (av_error < 0) {
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- LOG_ERROR(Service_NVDRV, "avcodec_open2() Failed.");
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- avcodec_close(av_codec_ctx);
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- av_buffer_unref(&av_hw_device);
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- return;
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- }
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initialized = true;
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}
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@@ -133,6 +172,9 @@ void Codec::Decode() {
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if (is_first_frame) {
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Initialize();
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}
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+ if (!initialized) {
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+ return;
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+ }
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bool vp9_hidden_frame = false;
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std::vector<u8> frame_data;
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if (current_codec == NvdecCommon::VideoCodec::H264) {
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@@ -141,50 +183,48 @@ void Codec::Decode() {
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frame_data = vp9_decoder->ComposeFrameHeader(state);
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vp9_hidden_frame = vp9_decoder->WasFrameHidden();
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}
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- AVPacket packet{};
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- av_init_packet(&packet);
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- packet.data = frame_data.data();
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- packet.size = static_cast<s32>(frame_data.size());
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- if (const int ret = avcodec_send_packet(av_codec_ctx, &packet); ret) {
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- LOG_DEBUG(Service_NVDRV, "avcodec_send_packet error {}", ret);
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+ AVPacketPtr packet{av_packet_alloc(), AVPacketDeleter};
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+ if (!packet) {
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+ LOG_ERROR(Service_NVDRV, "av_packet_alloc failed");
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+ return;
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+ }
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+ packet->data = frame_data.data();
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+ packet->size = static_cast<s32>(frame_data.size());
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+ if (const int res = avcodec_send_packet(av_codec_ctx, packet.get()); res != 0) {
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+ LOG_DEBUG(Service_NVDRV, "avcodec_send_packet error {}", res);
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return;
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}
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// Only receive/store visible frames
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if (vp9_hidden_frame) {
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return;
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}
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- AVFrame* hw_frame = av_frame_alloc();
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- AVFrame* sw_frame = hw_frame;
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- ASSERT_MSG(hw_frame, "av_frame_alloc hw_frame failed");
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- if (const int ret = avcodec_receive_frame(av_codec_ctx, hw_frame); ret) {
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+ AVFramePtr initial_frame{av_frame_alloc(), AVFrameDeleter};
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+ AVFramePtr final_frame{nullptr, AVFrameDeleter};
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+ ASSERT_MSG(initial_frame, "av_frame_alloc initial_frame failed");
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+ if (const int ret = avcodec_receive_frame(av_codec_ctx, initial_frame.get()); ret) {
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LOG_DEBUG(Service_NVDRV, "avcodec_receive_frame error {}", ret);
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- av_frame_free(&hw_frame);
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return;
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}
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- if (!hw_frame->width || !hw_frame->height) {
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+ if (initial_frame->width == 0 || initial_frame->height == 0) {
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LOG_WARNING(Service_NVDRV, "Zero width or height in frame");
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- av_frame_free(&hw_frame);
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return;
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}
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-#if defined(LIBVA_FOUND)
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- // Hardware acceleration code from FFmpeg/doc/examples/hw_decode.c under MIT license
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- if (hw_frame->format == AV_PIX_FMT_VAAPI) {
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- sw_frame = av_frame_alloc();
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- ASSERT_MSG(sw_frame, "av_frame_alloc sw_frame failed");
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+ if (av_codec_ctx->hw_device_ctx) {
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+ final_frame = AVFramePtr{av_frame_alloc(), AVFrameDeleter};
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+ ASSERT_MSG(final_frame, "av_frame_alloc final_frame failed");
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// Can't use AV_PIX_FMT_YUV420P and share code with software decoding in vic.cpp
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// because Intel drivers crash unless using AV_PIX_FMT_NV12
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- sw_frame->format = AV_PIX_FMT_NV12;
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- const int transfer_data_ret = av_hwframe_transfer_data(sw_frame, hw_frame, 0);
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- ASSERT_MSG(!transfer_data_ret, "av_hwframe_transfer_data error {}", transfer_data_ret);
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- av_frame_free(&hw_frame);
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+ final_frame->format = PREFERRED_GPU_FMT;
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+ const int ret = av_hwframe_transfer_data(final_frame.get(), initial_frame.get(), 0);
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+ ASSERT_MSG(!ret, "av_hwframe_transfer_data error {}", ret);
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+ } else {
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+ final_frame = std::move(initial_frame);
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}
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-#endif
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- if (sw_frame->format != AV_PIX_FMT_YUV420P && sw_frame->format != AV_PIX_FMT_NV12) {
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- UNIMPLEMENTED_MSG("Unexpected video format from host graphics: {}", sw_frame->format);
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- av_frame_free(&sw_frame);
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+ if (final_frame->format != PREFERRED_CPU_FMT && final_frame->format != PREFERRED_GPU_FMT) {
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+ UNIMPLEMENTED_MSG("Unexpected video format: {}", final_frame->format);
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return;
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}
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- av_frames.push(AVFramePtr{sw_frame, AVFrameDeleter});
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+ av_frames.push(std::move(final_frame));
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if (av_frames.size() > 10) {
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LOG_TRACE(Service_NVDRV, "av_frames.push overflow dropped frame");
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av_frames.pop();
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Fernando S