1 files changed, 220 insertions, 16 deletions

diff --git a/src/encoder/video/cuda.c b/src/encoder/video/cuda.c
index 53abe78..69e570f 100644
--- a/src/encoder/video/cuda.c
+++ b/src/encoder/video/cuda.c
@@ -1,11 +1,13 @@
 #include "../../../include/encoder/video/cuda.h"
 #include "../../../include/egl.h"
 #include "../../../include/cuda.h"
+#include "../../../external/nvEncodeAPI.h"
 
 #include <libavcodec/avcodec.h>
 #include <libavutil/hwcontext_cuda.h>
 
 #include <stdlib.h>
+#include <dlfcn.h>
 
 typedef struct {
     gsr_video_encoder_cuda_params params;
@@ -122,22 +124,224 @@ static bool gsr_video_encoder_cuda_setup_textures(gsr_video_encoder_cuda *self,
     return true;
 }
 
+static void* open_nvenc_library(void) {
+    dlerror(); /* clear */
+    void *lib = dlopen("libnvidia-encode.so.1", RTLD_LAZY);
+    if(!lib) {
+        lib = dlopen("libnvidia-encode.so", RTLD_LAZY);
+        if(!lib) {
+            fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs failed: failed to load libnvidia-encode.so/libnvidia-encode.so.1, error: %s\n", dlerror());
+            return NULL;
+        }
+    }
+    return lib;
+}
+
+static bool profile_is_h264(const GUID *profile_guid) {
+    const GUID *h264_guids[] = {
+        &NV_ENC_H264_PROFILE_BASELINE_GUID,
+        &NV_ENC_H264_PROFILE_MAIN_GUID,
+        &NV_ENC_H264_PROFILE_HIGH_GUID,
+        &NV_ENC_H264_PROFILE_PROGRESSIVE_HIGH_GUID,
+        &NV_ENC_H264_PROFILE_CONSTRAINED_HIGH_GUID
+    };
+
+    for(int i = 0; i < 5; ++i) {
+        if(memcmp(profile_guid, h264_guids[i], sizeof(GUID)) == 0)
+            return true;
+    }
+
+    return false;
+}
+
+static bool profile_is_hevc(const GUID *profile_guid) {
+    const GUID *h264_guids[] = {
+        &NV_ENC_HEVC_PROFILE_MAIN_GUID,
+    };
+
+    for(int i = 0; i < 1; ++i) {
+        if(memcmp(profile_guid, h264_guids[i], sizeof(GUID)) == 0)
+            return true;
+    }
+
+    return false;
+}
+
+static bool profile_is_hevc_10bit(const GUID *profile_guid) {
+    const GUID *h264_guids[] = {
+        &NV_ENC_HEVC_PROFILE_MAIN10_GUID,
+    };
+
+    for(int i = 0; i < 1; ++i) {
+        if(memcmp(profile_guid, h264_guids[i], sizeof(GUID)) == 0)
+            return true;
+    }
+
+    return false;
+}
+
+static bool profile_is_av1(const GUID *profile_guid) {
+    const GUID *h264_guids[] = {
+        &NV_ENC_AV1_PROFILE_MAIN_GUID,
+    };
+
+    for(int i = 0; i < 1; ++i) {
+        if(memcmp(profile_guid, h264_guids[i], sizeof(GUID)) == 0)
+            return true;
+    }
+
+    return false;
+}
+
+static bool encoder_get_supported_profiles(const NV_ENCODE_API_FUNCTION_LIST *function_list, void *nvenc_encoder, const GUID *encoder_guid, gsr_supported_video_codecs *supported_video_codecs) {
+    bool success = false;
+    GUID *profile_guids = NULL;
+
+    uint32_t profile_guid_count = 0;
+    if(function_list->nvEncGetEncodeProfileGUIDCount(nvenc_encoder, *encoder_guid, &profile_guid_count) != NV_ENC_SUCCESS) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncGetEncodeProfileGUIDCount failed, error: %s\n", function_list->nvEncGetLastErrorString(nvenc_encoder));
+        goto fail;
+    }
+
+    if(profile_guid_count == 0)
+        goto fail;
+
+    profile_guids = calloc(profile_guid_count, sizeof(GUID));
+    if(!profile_guids) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: failed to allocate %d guids\n", (int)profile_guid_count);
+        goto fail;
+    }
+
+    if(function_list->nvEncGetEncodeProfileGUIDs(nvenc_encoder, *encoder_guid, profile_guids, profile_guid_count, &profile_guid_count) != NV_ENC_SUCCESS) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncGetEncodeProfileGUIDs failed, error: %s\n", function_list->nvEncGetLastErrorString(nvenc_encoder));
+        goto fail;
+    }
+
+    for(uint32_t i = 0; i < profile_guid_count; ++i) {
+        if(profile_is_h264(&profile_guids[i])) {
+            supported_video_codecs->h264 = true;
+        } else if(profile_is_hevc(&profile_guids[i])) {
+            supported_video_codecs->hevc = true;
+        } else if(profile_is_hevc_10bit(&profile_guids[i])) {
+            supported_video_codecs->hevc_hdr = true;
+            supported_video_codecs->hevc_10bit = true;
+        } else if(profile_is_av1(&profile_guids[i])) {
+            supported_video_codecs->av1 = true;
+            supported_video_codecs->av1_hdr = true;
+            supported_video_codecs->av1_10bit = true;
+        }
+    }
+
+    success = true;
+    fail:
+
+    if(profile_guids)
+        free(profile_guids);
+
+    return success;
+}
+
+static bool get_supported_video_codecs(const NV_ENCODE_API_FUNCTION_LIST *function_list, void *nvenc_encoder, gsr_supported_video_codecs *supported_video_codecs) {
+    bool success = false;
+    GUID *encoder_guids = NULL;
+    *supported_video_codecs = (gsr_supported_video_codecs){0};
+
+    uint32_t encode_guid_count = 0;
+    if(function_list->nvEncGetEncodeGUIDCount(nvenc_encoder, &encode_guid_count) != NV_ENC_SUCCESS) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncGetEncodeGUIDCount failed, error: %s\n", function_list->nvEncGetLastErrorString(nvenc_encoder));
+        goto fail;
+    }
+
+    if(encode_guid_count == 0)
+        goto fail;
+
+    encoder_guids = calloc(encode_guid_count, sizeof(GUID));
+    if(!encoder_guids) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: failed to allocate %d guids\n", (int)encode_guid_count);
+        goto fail;
+    }
+
+    if(function_list->nvEncGetEncodeGUIDs(nvenc_encoder, encoder_guids, encode_guid_count, &encode_guid_count) != NV_ENC_SUCCESS) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: nvEncGetEncodeGUIDs failed, error: %s\n", function_list->nvEncGetLastErrorString(nvenc_encoder));
+        goto fail;
+    }
+
+    for(uint32_t i = 0; i < encode_guid_count; ++i) {
+        encoder_get_supported_profiles(function_list, nvenc_encoder, &encoder_guids[i], supported_video_codecs);
+    }
+
+    success = true;
+    fail:
+
+    if(encoder_guids)
+        free(encoder_guids);
+
+    return success;
+}
+
+#define NVENCAPI_VERSION_470 (11 | (1 << 24))
+
 static gsr_supported_video_codecs gsr_video_encoder_cuda_get_supported_codecs(gsr_video_encoder *encoder, bool cleanup) {
     (void)encoder;
-    (void)cleanup;
-    //gsr_video_encoder_cuda *encoder_cuda = encoder->priv;
-    // TODO: Query support
-    return (gsr_supported_video_codecs) {
-        .h264 = true,
-        .hevc = true,
-        .hevc_hdr = true,
-        .hevc_10bit = true,
-        .av1 = true,
-        .av1_hdr = true,
-        .av1_10bit = true,
-        .vp8 = false,
-        .vp9 = false
-    };
+
+    void *nvenc_lib = NULL;
+    gsr_cuda cuda;
+    memset(&cuda, 0, sizeof(cuda));
+    gsr_supported_video_codecs supported_video_codecs = {0};
+
+    if(!gsr_cuda_load(&cuda, NULL, false)) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: failed to load cuda\n");
+        goto done;
+    }
+
+    nvenc_lib = open_nvenc_library();
+    if(!nvenc_lib)
+        goto done;
+
+    typedef NVENCSTATUS NVENCAPI (*FUNC_NvEncodeAPICreateInstance)(NV_ENCODE_API_FUNCTION_LIST *functionList);
+    FUNC_NvEncodeAPICreateInstance NvEncodeAPICreateInstance = (FUNC_NvEncodeAPICreateInstance)dlsym(nvenc_lib, "NvEncodeAPICreateInstance");
+    if(!NvEncodeAPICreateInstance) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: failed to find NvEncodeAPICreateInstance in libnvidia-encode.so\n");
+        goto done;
+    }
+
+    NV_ENCODE_API_FUNCTION_LIST function_list;
+    memset(&function_list, 0, sizeof(function_list));
+    function_list.version = NV_ENCODE_API_FUNCTION_LIST_VER;
+    if(NvEncodeAPICreateInstance(&function_list) != NV_ENC_SUCCESS) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: NvEncodeAPICreateInstance failed\n");
+        goto done;
+    }
+
+    NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS params;
+    memset(&params, 0, sizeof(params));
+    params.version = NV_ENC_OPEN_ENCODE_SESSION_EX_PARAMS_VER;
+    params.deviceType = NV_ENC_DEVICE_TYPE_CUDA;
+    params.device = cuda.cu_ctx;
+    params.apiVersion = NVENCAPI_VERSION;
+
+    void *nvenc_encoder = NULL;
+    if(function_list.nvEncOpenEncodeSessionEx(&params, &nvenc_encoder) != NV_ENC_SUCCESS) {
+        // Old nvidia gpus dont support the new nvenc api (which is required for av1).
+        // In such cases fallback to old api version if possible and try again.
+        params.apiVersion = NVENCAPI_VERSION_470;
+        if(function_list.nvEncOpenEncodeSessionEx(&params, &nvenc_encoder) != NV_ENC_SUCCESS) {
+            fprintf(stderr, "gsr error: gsr_video_encoder_cuda_get_supported_codecs: NvEncOpenEncodeSessionEx failed\n");
+            goto done;
+        }
+    }
+
+    get_supported_video_codecs(&function_list, nvenc_encoder, &supported_video_codecs);
+
+    done:
+    if(cleanup) {
+        function_list.nvEncDestroyEncoder(nvenc_encoder);
+        if(nvenc_lib)
+            dlclose(nvenc_lib);
+        gsr_cuda_unload(&cuda);
+    }
+
+    return supported_video_codecs;
 }
 
 static void gsr_video_encoder_cuda_stop(gsr_video_encoder_cuda *self, AVCodecContext *video_codec_context);
@@ -145,8 +349,8 @@ static void gsr_video_encoder_cuda_stop(gsr_video_encoder_cuda *self, AVCodecCon
 static bool gsr_video_encoder_cuda_start(gsr_video_encoder *encoder, AVCodecContext *video_codec_context, AVFrame *frame) {
     gsr_video_encoder_cuda *encoder_cuda = encoder->priv;
 
-    // TODO: Force set overclock to false if wayland
-    if(!gsr_cuda_load(&encoder_cuda->cuda, encoder_cuda->params.egl->x11.dpy, encoder_cuda->params.overclock)) {
+    const bool overclock = gsr_egl_get_display_server(encoder_cuda->params.egl) == GSR_DISPLAY_SERVER_X11 ? encoder_cuda->params.overclock : false;
+    if(!gsr_cuda_load(&encoder_cuda->cuda, encoder_cuda->params.egl->x11.dpy, overclock)) {
         fprintf(stderr, "gsr error: gsr_video_encoder_cuda_start: failed to load cuda\n");
         gsr_video_encoder_cuda_stop(encoder_cuda, video_codec_context);
         return false;