//#include "sysdeps.h"
#include "h264encode.h"
+#include <movit/util.h>
#include <EGL/eglplatform.h>
#include <X11/X.h>
#include <X11/Xlib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <fcntl.h>
#include <va/va.h>
+#include <va/va_drm.h>
#include <va/va_drmcommon.h>
#include <va/va_enc_h264.h>
#include <va/va_x11.h>
exit(1); \
}
+#define BUFFER_OFFSET(i) ((char *)NULL + (i))
+
//#include "loadsurface.h"
#define NAL_REF_IDC_NONE 0
class H264EncoderImpl {
public:
- H264EncoderImpl(QSurface *surface, int width, int height, HTTPD *httpd);
+ H264EncoderImpl(QSurface *surface, const string &va_display, int width, int height, HTTPD *httpd);
~H264EncoderImpl();
void add_audio(int64_t pts, vector<float> audio);
bool begin_frame(GLuint *y_tex, GLuint *cbcr_tex);
void slice_header(bitstream *bs);
int build_packed_seq_buffer(unsigned char **header_buffer);
int build_packed_slice_buffer(unsigned char **header_buffer);
- int init_va();
+ int init_va(const string &va_display);
int deinit_va();
- VADisplay va_open_display(void);
+ VADisplay va_open_display(const string &va_display);
void va_close_display(VADisplay va_dpy);
int setup_encode();
int release_encode();
int update_RefPicList(int frame_type);
bool is_shutdown = false;
+ bool use_zerocopy;
+ int drm_fd = -1;
thread encode_thread, storage_thread;
AVCodecContext *context_audio;
HTTPD *httpd;
- Display *x11_display;
- Window x11_window;
+ Display *x11_display = nullptr;
// Encoder parameters
VADisplay va_dpy;
VAImage surface_image;
GLuint y_tex, cbcr_tex;
+
+ // Only if use_zerocopy == true.
EGLImage y_egl_image, cbcr_egl_image;
+
+ // Only if use_zerocopy == false.
+ RefCountedGLsync readback_done_fence;
+ GLuint pbo;
+ uint8_t *y_ptr, *cbcr_ptr;
+ size_t y_offset, cbcr_offset;
};
GLSurface gl_surfaces[SURFACE_NUM];
}
}
-VADisplay H264EncoderImpl::va_open_display(void)
+VADisplay H264EncoderImpl::va_open_display(const string &va_display)
{
- x11_display = XOpenDisplay(NULL);
- if (!x11_display) {
- fprintf(stderr, "error: can't connect to X server!\n");
- return NULL;
- }
- return vaGetDisplay(x11_display);
+ if (va_display.empty()) {
+ x11_display = XOpenDisplay(NULL);
+ if (!x11_display) {
+ fprintf(stderr, "error: can't connect to X server!\n");
+ return NULL;
+ }
+ use_zerocopy = true;
+ return vaGetDisplay(x11_display);
+ } else if (va_display[0] != '/') {
+ x11_display = XOpenDisplay(va_display.c_str());
+ if (!x11_display) {
+ fprintf(stderr, "error: can't connect to X server!\n");
+ return NULL;
+ }
+ use_zerocopy = true;
+ return vaGetDisplay(x11_display);
+ } else {
+ drm_fd = open(va_display.c_str(), O_RDWR);
+ if (drm_fd == -1) {
+ perror(va_display.c_str());
+ return NULL;
+ }
+ use_zerocopy = false;
+ return vaGetDisplayDRM(drm_fd);
+ }
}
void H264EncoderImpl::va_close_display(VADisplay va_dpy)
{
- if (!x11_display)
- return;
-
- if (x11_window) {
- XUnmapWindow(x11_display, x11_window);
- XDestroyWindow(x11_display, x11_window);
- x11_window = None;
- }
- XCloseDisplay(x11_display);
- x11_display = NULL;
+ if (x11_display) {
+ XCloseDisplay(x11_display);
+ x11_display = nullptr;
+ }
+ if (drm_fd != -1) {
+ close(drm_fd);
+ }
}
-int H264EncoderImpl::init_va()
+int H264EncoderImpl::init_va(const string &va_display)
{
VAProfile profile_list[]={VAProfileH264High, VAProfileH264Main, VAProfileH264Baseline, VAProfileH264ConstrainedBaseline};
VAEntrypoint *entrypoints;
VAStatus va_status;
unsigned int i;
- va_dpy = va_open_display();
+ va_dpy = va_open_display(va_display);
va_status = vaInitialize(va_dpy, &major_ver, &minor_ver);
CHECK_VASTATUS(va_status, "vaInitialize");
}
if (support_encode == 0) {
- printf("Can't find VAEntrypointEncSlice for H264 profiles\n");
+ printf("Can't find VAEntrypointEncSlice for H264 profiles. If you are using a non-Intel GPU\n");
+ printf("but have one in your system, try launching Nageru with --va-display /dev/dri/card0\n");
+ printf("to use VA-API against DRM instead of X11.\n");
exit(1);
} else {
switch (h264_profile) {
for (i = 0; i < SURFACE_NUM; i++) {
glGenTextures(1, &gl_surfaces[i].y_tex);
glGenTextures(1, &gl_surfaces[i].cbcr_tex);
+
+ if (!use_zerocopy) {
+ // Create Y image.
+ glBindTexture(GL_TEXTURE_2D, gl_surfaces[i].y_tex);
+ glTexStorage2D(GL_TEXTURE_2D, 1, GL_R8, frame_width, frame_height);
+
+ // Create CbCr image.
+ glBindTexture(GL_TEXTURE_2D, gl_surfaces[i].cbcr_tex);
+ glTexStorage2D(GL_TEXTURE_2D, 1, GL_RG8, frame_width / 2, frame_height / 2);
+
+ // Generate a PBO to read into. It doesn't necessarily fit 1:1 with the VA-API
+ // buffers, due to potentially differing pitch.
+ glGenBuffers(1, &gl_surfaces[i].pbo);
+ glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
+ glBufferStorage(GL_PIXEL_PACK_BUFFER, frame_width * frame_height * 2, nullptr, GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
+ uint8_t *ptr = (uint8_t *)glMapBufferRange(GL_PIXEL_PACK_BUFFER, 0, frame_width * frame_height * 2, GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
+ gl_surfaces[i].y_ptr = ptr;
+ gl_surfaces[i].cbcr_ptr = ptr + frame_width * frame_height;
+ gl_surfaces[i].y_offset = 0;
+ gl_surfaces[i].cbcr_offset = frame_width * frame_height;
+ glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
+ }
}
for (i = 0; i < SURFACE_NUM; i++) {
int H264EncoderImpl::release_encode()
{
- int i;
-
- for (i = 0; i < SURFACE_NUM; i++) {
- vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
- vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
- vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
- }
-
- vaDestroyContext(va_dpy, context_id);
- vaDestroyConfig(va_dpy, config_id);
+ for (unsigned i = 0; i < SURFACE_NUM; i++) {
+ vaDestroyBuffer(va_dpy, gl_surfaces[i].coded_buf);
+ vaDestroySurfaces(va_dpy, &gl_surfaces[i].src_surface, 1);
+ vaDestroySurfaces(va_dpy, &gl_surfaces[i].ref_surface, 1);
+
+ if (!use_zerocopy) {
+ glBindBuffer(GL_PIXEL_PACK_BUFFER, gl_surfaces[i].pbo);
+ glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
+ glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
+ glDeleteBuffers(1, &gl_surfaces[i].pbo);
+ }
+ glDeleteTextures(1, &gl_surfaces[i].y_tex);
+ glDeleteTextures(1, &gl_surfaces[i].cbcr_tex);
+ }
- return 0;
+ vaDestroyContext(va_dpy, context_id);
+ vaDestroyConfig(va_dpy, config_id);
+
+ return 0;
}
int H264EncoderImpl::deinit_va()
}
-H264EncoderImpl::H264EncoderImpl(QSurface *surface, int width, int height, HTTPD *httpd)
+H264EncoderImpl::H264EncoderImpl(QSurface *surface, const string &va_display, int width, int height, HTTPD *httpd)
: current_storage_frame(0), surface(surface), httpd(httpd)
{
AVCodec *codec_audio = avcodec_find_encoder(AUDIO_OUTPUT_CODEC);
//print_input();
- init_va();
+ init_va(va_display);
setup_encode();
// No frames are ready yet.
*y_tex = surf->y_tex;
*cbcr_tex = surf->cbcr_tex;
- VASurfaceID surface = surf->src_surface;
- VAStatus va_status = vaDeriveImage(va_dpy, surface, &surf->surface_image);
- CHECK_VASTATUS(va_status, "vaDeriveImage");
-
- VABufferInfo buf_info;
- buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
- va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
- CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
-
- // Create Y image.
- surf->y_egl_image = EGL_NO_IMAGE_KHR;
- EGLint y_attribs[] = {
- EGL_WIDTH, frame_width,
- EGL_HEIGHT, frame_height,
- EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
- EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
- EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
- EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
- EGL_NONE
- };
-
- surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
- assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
-
- // Associate Y image to a texture.
- glBindTexture(GL_TEXTURE_2D, *y_tex);
- glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
-
- // Create CbCr image.
- surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
- EGLint cbcr_attribs[] = {
- EGL_WIDTH, frame_width,
- EGL_HEIGHT, frame_height,
- EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
- EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
- EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
- EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
- EGL_NONE
- };
-
- surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
- assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
-
- // Associate CbCr image to a texture.
- glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
- glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
+ VAStatus va_status = vaDeriveImage(va_dpy, surf->src_surface, &surf->surface_image);
+ CHECK_VASTATUS(va_status, "vaDeriveImage");
+
+ if (use_zerocopy) {
+ VABufferInfo buf_info;
+ buf_info.mem_type = VA_SURFACE_ATTRIB_MEM_TYPE_DRM_PRIME; // or VA_SURFACE_ATTRIB_MEM_TYPE_KERNEL_DRM?
+ va_status = vaAcquireBufferHandle(va_dpy, surf->surface_image.buf, &buf_info);
+ CHECK_VASTATUS(va_status, "vaAcquireBufferHandle");
+
+ // Create Y image.
+ surf->y_egl_image = EGL_NO_IMAGE_KHR;
+ EGLint y_attribs[] = {
+ EGL_WIDTH, frame_width,
+ EGL_HEIGHT, frame_height,
+ EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('R', '8', ' ', ' '),
+ EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
+ EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[0]),
+ EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[0]),
+ EGL_NONE
+ };
+
+ surf->y_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, y_attribs);
+ assert(surf->y_egl_image != EGL_NO_IMAGE_KHR);
+
+ // Associate Y image to a texture.
+ glBindTexture(GL_TEXTURE_2D, *y_tex);
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->y_egl_image);
+
+ // Create CbCr image.
+ surf->cbcr_egl_image = EGL_NO_IMAGE_KHR;
+ EGLint cbcr_attribs[] = {
+ EGL_WIDTH, frame_width,
+ EGL_HEIGHT, frame_height,
+ EGL_LINUX_DRM_FOURCC_EXT, fourcc_code('G', 'R', '8', '8'),
+ EGL_DMA_BUF_PLANE0_FD_EXT, EGLint(buf_info.handle),
+ EGL_DMA_BUF_PLANE0_OFFSET_EXT, EGLint(surf->surface_image.offsets[1]),
+ EGL_DMA_BUF_PLANE0_PITCH_EXT, EGLint(surf->surface_image.pitches[1]),
+ EGL_NONE
+ };
+
+ surf->cbcr_egl_image = eglCreateImageKHR(eglGetCurrentDisplay(), EGL_NO_CONTEXT, EGL_LINUX_DMA_BUF_EXT, NULL, cbcr_attribs);
+ assert(surf->cbcr_egl_image != EGL_NO_IMAGE_KHR);
+
+ // Associate CbCr image to a texture.
+ glBindTexture(GL_TEXTURE_2D, *cbcr_tex);
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, surf->cbcr_egl_image);
+ }
return true;
}
void H264EncoderImpl::end_frame(RefCountedGLsync fence, int64_t pts, const vector<RefCountedFrame> &input_frames)
{
assert(!is_shutdown);
+
+ if (!use_zerocopy) {
+ GLSurface *surf = &gl_surfaces[current_storage_frame % SURFACE_NUM];
+
+ glPixelStorei(GL_PACK_ROW_LENGTH, 0);
+ check_error();
+
+ glBindBuffer(GL_PIXEL_PACK_BUFFER, surf->pbo);
+ check_error();
+
+ glBindTexture(GL_TEXTURE_2D, surf->y_tex);
+ check_error();
+ glGetTexImage(GL_TEXTURE_2D, 0, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->y_offset));
+ check_error();
+
+ glBindTexture(GL_TEXTURE_2D, surf->cbcr_tex);
+ check_error();
+ glGetTexImage(GL_TEXTURE_2D, 0, GL_RG, GL_UNSIGNED_BYTE, BUFFER_OFFSET(surf->cbcr_offset));
+ check_error();
+
+ glBindTexture(GL_TEXTURE_2D, 0);
+ check_error();
+ glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
+ check_error();
+
+ glMemoryBarrier(GL_TEXTURE_UPDATE_BARRIER_BIT | GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
+ check_error();
+ fence = RefCountedGLsync(GL_SYNC_GPU_COMMANDS_COMPLETE, /*flags=*/0);
+ check_error();
+ }
+
{
unique_lock<mutex> lock(frame_queue_mutex);
pending_video_frames[current_storage_frame] = PendingFrame{ fence, input_frames, pts };
}
}
+namespace {
+
+void memcpy_with_pitch(uint8_t *dst, const uint8_t *src, size_t src_width, size_t dst_pitch, size_t height)
+{
+ if (src_width == dst_pitch) {
+ memcpy(dst, src, src_width * height);
+ } else {
+ for (size_t y = 0; y < height; ++y) {
+ const uint8_t *sptr = src + y * src_width;
+ uint8_t *dptr = dst + y * dst_pitch;
+ memcpy(dptr, sptr, src_width);
+ }
+ }
+}
+
+} // namespace
+
void H264EncoderImpl::encode_frame(H264EncoderImpl::PendingFrame frame, int encoding_frame_num, int display_frame_num, int gop_start_display_frame_num,
int frame_type, int64_t pts, int64_t dts)
{
// Release back any input frames we needed to render this frame.
frame.input_frames.clear();
- // Unmap the image.
GLSurface *surf = &gl_surfaces[display_frame_num % SURFACE_NUM];
- eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
- eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
- VAStatus va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
- CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
+ VAStatus va_status;
+
+ if (use_zerocopy) {
+ eglDestroyImageKHR(eglGetCurrentDisplay(), surf->y_egl_image);
+ eglDestroyImageKHR(eglGetCurrentDisplay(), surf->cbcr_egl_image);
+ va_status = vaReleaseBufferHandle(va_dpy, surf->surface_image.buf);
+ CHECK_VASTATUS(va_status, "vaReleaseBufferHandle");
+ } else {
+ unsigned char *surface_p = nullptr;
+ vaMapBuffer(va_dpy, surf->surface_image.buf, (void **)&surface_p);
+
+ unsigned char *y_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[0];
+ memcpy_with_pitch(y_ptr, surf->y_ptr, frame_width, surf->surface_image.pitches[0], frame_height);
+
+ unsigned char *cbcr_ptr = (unsigned char *)surface_p + surf->surface_image.offsets[1];
+ memcpy_with_pitch(cbcr_ptr, surf->cbcr_ptr, (frame_width / 2) * sizeof(uint16_t), surf->surface_image.pitches[1], frame_height / 2);
+
+ va_status = vaUnmapBuffer(va_dpy, surf->surface_image.buf);
+ CHECK_VASTATUS(va_status, "vaUnmapBuffer");
+ }
+
va_status = vaDestroyImage(va_dpy, surf->surface_image.image_id);
CHECK_VASTATUS(va_status, "vaDestroyImage");
- VASurfaceID surface = surf->src_surface;
-
// Schedule the frame for encoding.
- va_status = vaBeginPicture(va_dpy, context_id, surface);
+ VASurfaceID va_surface = surf->src_surface;
+ va_status = vaBeginPicture(va_dpy, context_id, va_surface);
CHECK_VASTATUS(va_status, "vaBeginPicture");
if (frame_type == FRAME_IDR) {
}
// Proxy object.
-H264Encoder::H264Encoder(QSurface *surface, int width, int height, HTTPD *httpd)
- : impl(new H264EncoderImpl(surface, width, height, httpd)) {}
+H264Encoder::H264Encoder(QSurface *surface, const string &va_display, int width, int height, HTTPD *httpd)
+ : impl(new H264EncoderImpl(surface, va_display, width, height, httpd)) {}
// Must be defined here because unique_ptr<> destructor needs to know the impl.
H264Encoder::~H264Encoder() {}