X-Git-Url: https://git.sesse.net/?p=nageru;a=blobdiff_plain;f=cef_capture.cpp;fp=cef_capture.cpp;h=c05c2953deff7cc3837f1f203917eee8f734b843;hp=0000000000000000000000000000000000000000;hb=b68d8a25951faf5b967b7a35fa0a363b4b68fbc0;hpb=25ea462c2847313afd702cea1db29199b845fbd4

diff --git a/cef_capture.cpp b/cef_capture.cpp
new file mode 100644
index 0000000..c05c295
--- /dev/null
+++ b/cef_capture.cpp
@@ -0,0 +1,152 @@
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include <chrono>
+#include <memory>
+#include <string>
+
+#include "cef_capture.h"
+#include "nageru_cef_app.h"
+
+#undef CHECK
+#include <cef_app.h>
+#include <cef_browser.h>
+#include <cef_client.h>
+
+#include "bmusb/bmusb.h"
+
+using namespace std;
+using namespace std::chrono;
+using namespace bmusb;
+
+extern CefRefPtr<NageruCefApp> cef_app;
+
+CEFCapture::CEFCapture(const string &url, unsigned width, unsigned height)
+	: cef_client(new NageruCEFClient(width, height, this)),
+	  width(width),
+	  height(height),
+	  start_url(url)
+{
+	char buf[256];
+	snprintf(buf, sizeof(buf), "CEF card %d", card_index + 1);
+	description = buf;
+}
+
+CEFCapture::~CEFCapture()
+{
+	if (has_dequeue_callbacks) {
+		dequeue_cleanup_callback();
+	}
+}
+
+void CEFCapture::OnPaint(const void *buffer, int width, int height)
+{
+	steady_clock::time_point timestamp = steady_clock::now();
+
+	VideoFormat video_format;
+	video_format.width = width;
+	video_format.height = height;
+	video_format.stride = width * 4;
+	video_format.frame_rate_nom = 60;  // FIXME
+	video_format.frame_rate_den = 1;
+	video_format.has_signal = true;
+	video_format.is_connected = true;
+
+	FrameAllocator::Frame video_frame = video_frame_allocator->alloc_frame();
+	if (video_frame.data != nullptr) {
+		assert(video_frame.size >= unsigned(width * height * 4));
+		assert(!video_frame.interleaved);
+		memcpy(video_frame.data, buffer, width * height * 4);
+		video_frame.len = video_format.stride * height;
+		video_frame.received_timestamp = timestamp;
+	}
+	frame_callback(timecode++,
+		video_frame, 0, video_format,
+		FrameAllocator::Frame(), 0, AudioFormat());
+}
+
+#define FRAME_SIZE (8 << 20)  // 8 MB.
+
+void CEFCapture::configure_card()
+{
+	if (video_frame_allocator == nullptr) {
+		owned_video_frame_allocator.reset(new MallocFrameAllocator(FRAME_SIZE, NUM_QUEUED_VIDEO_FRAMES));
+		set_video_frame_allocator(owned_video_frame_allocator.get());
+	}
+}
+
+void CEFCapture::start_bm_capture()
+{
+	cef_app->initialize_cef();
+
+	CefBrowserSettings browser_settings;
+	browser_settings.web_security = cef_state_t::STATE_DISABLED;
+	browser_settings.webgl = cef_state_t::STATE_ENABLED;
+	browser_settings.windowless_frame_rate = 60;
+
+	CefWindowInfo window_info;
+	window_info.SetAsWindowless(0);
+	CefBrowserHost::CreateBrowser(window_info, cef_client, start_url, browser_settings, nullptr);
+}
+
+void CEFCapture::stop_dequeue_thread()
+{
+	lock_guard<mutex> lock(browser_mutex);
+	cef_app->close_browser(browser);
+	browser = nullptr;  // Or unref_cef() will be sad.
+	cef_app->unref_cef();
+}
+
+std::map<uint32_t, VideoMode> CEFCapture::get_available_video_modes() const
+{
+	VideoMode mode;
+
+	char buf[256];
+	snprintf(buf, sizeof(buf), "%ux%u", width, height);
+	mode.name = buf;
+
+	mode.autodetect = false;
+	mode.width = width;
+	mode.height = height;
+	mode.frame_rate_num = 60;  // FIXME
+	mode.frame_rate_den = 1;
+	mode.interlaced = false;
+
+	return {{ 0, mode }};
+}
+
+std::map<uint32_t, std::string> CEFCapture::get_available_video_inputs() const
+{
+	return {{ 0, "HTML video input" }};
+}
+
+std::map<uint32_t, std::string> CEFCapture::get_available_audio_inputs() const
+{
+	return {{ 0, "Fake HTML audio input (silence)" }};
+}
+
+void CEFCapture::set_video_mode(uint32_t video_mode_id)
+{
+	assert(video_mode_id == 0);
+}
+
+void CEFCapture::set_video_input(uint32_t video_input_id)
+{
+	assert(video_input_id == 0);
+}
+
+void CEFCapture::set_audio_input(uint32_t audio_input_id)
+{
+	assert(audio_input_id == 0);
+}
+
+void NageruCEFClient::OnPaint(CefRefPtr<CefBrowser> browser, PaintElementType type, const RectList &dirtyRects, const void *buffer, int width, int height)
+{
+	parent->OnPaint(buffer, width, height);
+}
+
+bool NageruCEFClient::GetViewRect(CefRefPtr<CefBrowser> browser, CefRect &rect)
+{
+	rect = CefRect(0, 0, width, height);
+	return true;
+}