initHEADmaster

1 files changed, 347 insertions, 0 deletions

diff --git a/src/encoder/video/vaapi.c b/src/encoder/video/vaapi.c
new file mode 100644
index 0000000..b32d8d3
--- /dev/null
+++ b/src/encoder/video/vaapi.c
@@ -0,0 +1,347 @@
+#include "../../../include/encoder/video/vaapi.h"
+#include "../../../include/utils.h"
+#include "../../../include/egl.h"
+
+#include <libavcodec/avcodec.h>
+#include <libavutil/hwcontext_vaapi.h>
+#include <libavutil/intreadwrite.h>
+
+#include <va/va.h>
+#include <va/va_drm.h>
+#include <va/va_drmcommon.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+typedef struct {
+    gsr_video_encoder_vaapi_params params;
+
+    unsigned int target_textures[2];
+    vec2i texture_sizes[2];
+
+    AVBufferRef *device_ctx;
+    VADisplay va_dpy;
+    VADRMPRIMESurfaceDescriptor prime;
+} gsr_video_encoder_vaapi;
+
+static bool gsr_video_encoder_vaapi_setup_context(gsr_video_encoder_vaapi *self, AVCodecContext *video_codec_context) {
+    char render_path[128];
+    if(!gsr_card_path_get_render_path(self->params.egl->card_path, render_path)) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_context: failed to get /dev/dri/renderDXXX file from %s\n", self->params.egl->card_path);
+        return false;
+    }
+
+    if(av_hwdevice_ctx_create(&self->device_ctx, AV_HWDEVICE_TYPE_VAAPI, render_path, NULL, 0) < 0) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_context: failed to create hardware device context\n");
+        return false;
+    }
+
+    AVBufferRef *frame_context = av_hwframe_ctx_alloc(self->device_ctx);
+    if(!frame_context) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_context: failed to create hwframe context\n");
+        av_buffer_unref(&self->device_ctx);
+        return false;
+    }
+
+    AVHWFramesContext *hw_frame_context = (AVHWFramesContext*)frame_context->data;
+    hw_frame_context->width = video_codec_context->width;
+    hw_frame_context->height = video_codec_context->height;
+    hw_frame_context->sw_format = self->params.color_depth == GSR_COLOR_DEPTH_10_BITS ? AV_PIX_FMT_P010LE : AV_PIX_FMT_NV12;
+    hw_frame_context->format = video_codec_context->pix_fmt;
+    hw_frame_context->device_ctx = (AVHWDeviceContext*)self->device_ctx->data;
+
+    //hw_frame_context->initial_pool_size = 20;
+
+    AVVAAPIDeviceContext *vactx = ((AVHWDeviceContext*)self->device_ctx->data)->hwctx;
+    self->va_dpy = vactx->display;
+
+    if (av_hwframe_ctx_init(frame_context) < 0) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_context: failed to initialize hardware frame context "
+                        "(note: ffmpeg version needs to be > 4.0)\n");
+        av_buffer_unref(&self->device_ctx);
+        //av_buffer_unref(&frame_context);
+        return false;
+    }
+
+    video_codec_context->hw_frames_ctx = av_buffer_ref(frame_context);
+    av_buffer_unref(&frame_context);
+    return true;
+}
+
+static uint32_t fourcc(uint32_t a, uint32_t b, uint32_t c, uint32_t d) {
+    return (d << 24) | (c << 16) | (b << 8) | a;
+}
+
+static bool gsr_video_encoder_vaapi_setup_textures(gsr_video_encoder_vaapi *self, AVCodecContext *video_codec_context, AVFrame *frame) {
+    const int res = av_hwframe_get_buffer(video_codec_context->hw_frames_ctx, frame, 0);
+    if(res < 0) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_textures: av_hwframe_get_buffer failed: %d\n", res);
+        return false;
+    }
+
+    VASurfaceID target_surface_id = (uintptr_t)frame->data[3];
+
+    VAStatus va_status = vaExportSurfaceHandle(self->va_dpy, target_surface_id, VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME_2, VA_EXPORT_SURFACE_WRITE_ONLY | VA_EXPORT_SURFACE_SEPARATE_LAYERS, &self->prime);
+    if(va_status != VA_STATUS_SUCCESS) {
+        fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_textures: vaExportSurfaceHandle failed, error: %d\n", va_status);
+        return false;
+    }
+    vaSyncSurface(self->va_dpy, target_surface_id);
+
+    const uint32_t formats_nv12[2] = { fourcc('R', '8', ' ', ' '), fourcc('G', 'R', '8', '8') };
+    const uint32_t formats_p010[2] = { fourcc('R', '1', '6', ' '), fourcc('G', 'R', '3', '2') };
+
+    if(self->prime.fourcc == VA_FOURCC_NV12 || self->prime.fourcc == VA_FOURCC_P010) {
+        const uint32_t *formats = self->prime.fourcc == VA_FOURCC_NV12 ? formats_nv12 : formats_p010;
+        const int div[2] = {1, 2}; // divide UV texture size by 2 because chroma is half size
+
+        self->params.egl->glGenTextures(2, self->target_textures);
+        for(int i = 0; i < 2; ++i) {
+            const int layer = i;
+
+            int fds[4];
+            uint32_t offsets[4];
+            uint32_t pitches[4];
+            uint64_t modifiers[4];
+            for(uint32_t j = 0; j < self->prime.layers[layer].num_planes; ++j) {
+                // TODO: Close these? in _stop, using self->prime
+                fds[j] = self->prime.objects[self->prime.layers[layer].object_index[j]].fd;
+                offsets[j] = self->prime.layers[layer].offset[j];
+                pitches[j] = self->prime.layers[layer].pitch[j];
+                modifiers[j] = self->prime.objects[self->prime.layers[layer].object_index[j]].drm_format_modifier;
+            }
+
+            intptr_t img_attr[44];
+            setup_dma_buf_attrs(img_attr, formats[i], self->prime.width / div[i], self->prime.height / div[i],
+                fds, offsets, pitches, modifiers, self->prime.layers[layer].num_planes, true);
+            self->texture_sizes[i] = (vec2i){ self->prime.width / div[i], self->prime.height / div[i] };
+
+            while(self->params.egl->eglGetError() != EGL_SUCCESS){}
+            EGLImage image = self->params.egl->eglCreateImage(self->params.egl->egl_display, 0, EGL_LINUX_DMA_BUF_EXT, NULL, img_attr);
+            if(!image) {
+                fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_textures: failed to create egl image from drm fd for output drm fd, error: %d\n", self->params.egl->eglGetError());
+                return false;
+            }
+
+            self->params.egl->glBindTexture(GL_TEXTURE_2D, self->target_textures[i]);
+            self->params.egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+            self->params.egl->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+            while(self->params.egl->glGetError()) {}
+            while(self->params.egl->eglGetError() != EGL_SUCCESS){}
+            self->params.egl->glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
+            if(self->params.egl->glGetError() != 0 || self->params.egl->eglGetError() != EGL_SUCCESS) {
+                // TODO: Get the error properly
+                fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_textures: failed to bind egl image to gl texture, error: %d\n", self->params.egl->eglGetError());
+                self->params.egl->eglDestroyImage(self->params.egl->egl_display, image);
+                self->params.egl->glBindTexture(GL_TEXTURE_2D, 0);
+                return false;
+            }
+
+            self->params.egl->eglDestroyImage(self->params.egl->egl_display, image);
+            self->params.egl->glBindTexture(GL_TEXTURE_2D, 0);
+        }
+
+        return true;
+    } else {
+        fprintf(stderr, "gsr error: gsr_video_encoder_vaapi_setup_textures: unexpected fourcc %u for output drm fd, expected nv12 or p010\n", self->prime.fourcc);
+        return false;
+    }
+}
+
+static void gsr_video_encoder_vaapi_stop(gsr_video_encoder_vaapi *self, AVCodecContext *video_codec_context);
+
+static bool supports_hevc_without_padding(const char *card_path) {
+#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(61, 28, 100) && VA_CHECK_VERSION(1, 21, 0)
+    VAStatus va_status;
+    VAConfigID va_config = 0;
+    unsigned int num_surface_attr = 0;
+    VASurfaceAttrib *surface_attr_list = NULL;
+    bool supports_surface_attrib_alignment_size = false;
+    int va_major = 0;
+    int va_minor = 0;
+    bool initialized = false;
+
+    char render_path[128];
+    if(!gsr_card_path_get_render_path(card_path, render_path)) {
+        fprintf(stderr, "gsr error: supports_hevc_without_padding: failed to get /dev/dri/renderDXXX file from %s\n", card_path);
+        return false;
+    }
+
+    const int drm_fd = open(render_path, O_RDWR);
+    if(drm_fd == -1) {
+        fprintf(stderr, "gsr error: supports_hevc_without_padding: failed to open device %s\n", render_path);
+        return false;
+    }
+
+    const VADisplay va_dpy = vaGetDisplayDRM(drm_fd);
+    if(!va_dpy) {
+        fprintf(stderr, "gsr error: supports_hevc_without_padding: failed to get vaapi display for device %s\n", render_path);
+        goto done;
+    }
+
+    vaSetInfoCallback(va_dpy, NULL, NULL);
+
+    if(vaInitialize(va_dpy, &va_major, &va_minor) != VA_STATUS_SUCCESS) {
+        fprintf(stderr, "gsr error: supports_hevc_without_padding: vaInitialize failed\n");
+        goto done;
+    }
+    initialized = true;
+
+    va_status = vaCreateConfig(va_dpy, VAProfileHEVCMain, VAEntrypointEncSlice, NULL, 0, &va_config);
+    if(va_status != VA_STATUS_SUCCESS) {
+        va_status = vaCreateConfig(va_dpy, VAProfileHEVCMain, VAEntrypointEncSliceLP, NULL, 0, &va_config);
+        if(va_status != VA_STATUS_SUCCESS) {
+            fprintf(stderr, "gsr error: supports_hevc_without_padding: failed to create hevc vaapi config, error: %s (%d)\n", vaErrorStr(va_status), va_status);
+            return false;
+        }
+    }
+
+    va_status = vaQuerySurfaceAttributes(va_dpy, va_config, 0, &num_surface_attr);
+    if(va_status != VA_STATUS_SUCCESS) {
+        fprintf(stderr, "gsr error: supports_hevc_without_padding: failed to query vaapi surface attributes size, error: %s (%d)\n", vaErrorStr(va_status), va_status);
+        goto done;
+    }
+
+    surface_attr_list = malloc(num_surface_attr * sizeof(VASurfaceAttrib));
+    if(!surface_attr_list) {
+        fprintf(stderr, "gsr error: supports_hevc_without_padding: failed to allocate memory for %u vaapi surface attributes, error: %s (%d)\n", num_surface_attr, vaErrorStr(va_status), va_status);
+        goto done;
+    }
+
+    va_status = vaQuerySurfaceAttributes(va_dpy, va_config, surface_attr_list, &num_surface_attr);
+    if(va_status != VA_STATUS_SUCCESS) {
+        fprintf(stderr, "gsr error: supports_hevc_without_padding: failed to query vaapi surface attributes data, error: %s (%d)\n", vaErrorStr(va_status), va_status);
+        goto done;
+    }
+
+    for(unsigned int i = 0; i < num_surface_attr; ++i) {
+        if(surface_attr_list[i].type == VASurfaceAttribAlignmentSize) {
+            supports_surface_attrib_alignment_size = true;
+            break;
+        }
+    }
+
+    done:
+    free(surface_attr_list);
+    if(va_config > 0)
+        vaDestroyConfig(va_dpy, va_config);
+    if(initialized)
+        vaTerminate(va_dpy);
+    if(drm_fd > 0)
+        close(drm_fd);
+    return supports_surface_attrib_alignment_size;
+#else
+    return false;
+#endif
+}
+
+static bool gsr_video_encoder_vaapi_start(gsr_video_encoder *encoder, AVCodecContext *video_codec_context, AVFrame *frame) {
+    gsr_video_encoder_vaapi *self = encoder->priv;
+
+    if(self->params.egl->gpu_info.vendor == GSR_GPU_VENDOR_AMD && video_codec_context->codec_id == AV_CODEC_ID_HEVC) {
+        if(supports_hevc_without_padding(self->params.egl->card_path)) {
+            video_codec_context->width = FFALIGN(video_codec_context->width, 2);
+            video_codec_context->height = FFALIGN(video_codec_context->height, 2);
+        } else {
+            video_codec_context->width = FFALIGN(video_codec_context->width, 256);
+            video_codec_context->height = FFALIGN(video_codec_context->height, 256);
+        }
+    } else if(self->params.egl->gpu_info.vendor == GSR_GPU_VENDOR_AMD && video_codec_context->codec_id == AV_CODEC_ID_AV1) {
+        // TODO: Dont do this for VCN 5 and forward which should fix this hardware bug
+        video_codec_context->width = FFALIGN(video_codec_context->width, 64);
+        // AMD driver has special case handling for 1080 height to set it to 1082 instead of 1088 (1080 aligned to 16).
+        // TODO: Set height to 1082 in this case, but it wont work because it will be aligned to 1088.
+        if(video_codec_context->height == 1080) {
+            video_codec_context->height = 1080;
+        } else {
+            video_codec_context->height = FFALIGN(video_codec_context->height, 16);
+        }
+    } else {
+        video_codec_context->width = FFALIGN(video_codec_context->width, 2);
+        video_codec_context->height = FFALIGN(video_codec_context->height, 2);
+    }
+
+    if(FFALIGN(video_codec_context->width, 2) != FFALIGN(frame->width, 2) || FFALIGN(video_codec_context->height, 2) != FFALIGN(frame->height, 2)) {
+        fprintf(stderr, "gsr warning: gsr_video_encoder_vaapi_start: black bars have been added to the video because of a bug in AMD drivers/hardware. Record with h264 codec instead (-k h264) to get around this issue\n");
+    }
+
+    if(video_codec_context->width < 128)
+        video_codec_context->width = 128;
+
+    if(video_codec_context->height < 128)
+        video_codec_context->height = 128;
+
+    frame->width = video_codec_context->width;
+    frame->height = video_codec_context->height;
+
+    if(!gsr_video_encoder_vaapi_setup_context(self, video_codec_context)) {
+        gsr_video_encoder_vaapi_stop(self, video_codec_context);
+        return false;
+    }
+
+    if(!gsr_video_encoder_vaapi_setup_textures(self, video_codec_context, frame)) {
+        gsr_video_encoder_vaapi_stop(self, video_codec_context);
+        return false;
+    }
+
+    return true;
+}
+
+void gsr_video_encoder_vaapi_stop(gsr_video_encoder_vaapi *self, AVCodecContext *video_codec_context) {
+    self->params.egl->glDeleteTextures(2, self->target_textures);
+    self->target_textures[0] = 0;
+    self->target_textures[1] = 0;
+
+    if(video_codec_context->hw_frames_ctx)
+        av_buffer_unref(&video_codec_context->hw_frames_ctx);
+    if(self->device_ctx)
+        av_buffer_unref(&self->device_ctx);
+
+    for(uint32_t i = 0; i < self->prime.num_objects; ++i) {
+        if(self->prime.objects[i].fd > 0) {
+            close(self->prime.objects[i].fd);
+            self->prime.objects[i].fd = 0;
+        }
+    }
+}
+
+static void gsr_video_encoder_vaapi_get_textures(gsr_video_encoder *encoder, unsigned int *textures, vec2i *texture_sizes, int *num_textures, gsr_destination_color *destination_color) {
+    gsr_video_encoder_vaapi *self = encoder->priv;
+    textures[0] = self->target_textures[0];
+    textures[1] = self->target_textures[1];
+    texture_sizes[0] = self->texture_sizes[0];
+    texture_sizes[1] = self->texture_sizes[1];
+    *num_textures = 2;
+    *destination_color = self->params.color_depth == GSR_COLOR_DEPTH_10_BITS ? GSR_DESTINATION_COLOR_P010 : GSR_DESTINATION_COLOR_NV12;
+}
+
+static void gsr_video_encoder_vaapi_destroy(gsr_video_encoder *encoder, AVCodecContext *video_codec_context) {
+    gsr_video_encoder_vaapi_stop(encoder->priv, video_codec_context);
+    free(encoder->priv);
+    free(encoder);
+}
+
+gsr_video_encoder* gsr_video_encoder_vaapi_create(const gsr_video_encoder_vaapi_params *params) {
+    gsr_video_encoder *encoder = calloc(1, sizeof(gsr_video_encoder));
+    if(!encoder)
+        return NULL;
+
+    gsr_video_encoder_vaapi *encoder_vaapi = calloc(1, sizeof(gsr_video_encoder_vaapi));
+    if(!encoder_vaapi) {
+        free(encoder);
+        return NULL;
+    }
+
+    encoder_vaapi->params = *params;
+
+    *encoder = (gsr_video_encoder) {
+        .start = gsr_video_encoder_vaapi_start,
+        .get_textures = gsr_video_encoder_vaapi_get_textures,
+        .destroy = gsr_video_encoder_vaapi_destroy,
+        .priv = encoder_vaapi
+    };
+
+    return encoder;
+}