1 files changed, 168 insertions, 0 deletions
diff --git a/utils/wbm2m.cpp b/utils/wbm2m.cpp
new file mode 100644
index 0000000..1f8dffa
--- /dev/null
+++ b/utils/wbm2m.cpp
@@ -0,0 +1,168 @@
+#include <cstdio>
+#include <poll.h>
+#include <unistd.h>
+#include <algorithm>
+#include <fstream>
+#include <map>
+
+#include <kms++/kms++.h>
+#include <kms++util/kms++util.h>
+#include <kms++util/videodevice.h>
+
+const uint32_t NUM_SRC_BUFS=2;
+const uint32_t NUM_DST_BUFS=2;
+
+using namespace std;
+using namespace kms;
+
+static const char* usage_str =
+		"Usage: wbm2m [OPTIONS]\n\n"
+		"Options:\n"
+		"  -f, --format=4CC          Output format"
+		"  -h, --help                Print this help\n"
+		;
+
+const int bar_speed = 4;
+const int bar_width = 10;
+
+static unsigned get_bar_pos(DumbFramebuffer* fb, unsigned frame_num)
+{
+	return (frame_num * bar_speed) % (fb->width() - bar_width + 1);
+}
+
+static void read_frame(DumbFramebuffer* fb, unsigned frame_num)
+{
+	static map<DumbFramebuffer*, int> s_bar_pos_map;
+
+	int old_pos = -1;
+	if (s_bar_pos_map.find(fb) != s_bar_pos_map.end())
+		old_pos = s_bar_pos_map[fb];
+
+	int pos = get_bar_pos(fb, frame_num);
+	draw_color_bar(*fb, old_pos, pos, bar_width);
+	draw_text(*fb, fb->width() / 2, 0, to_string(frame_num), RGB(255, 255, 255));
+	s_bar_pos_map[fb] = pos;
+}
+
+int main(int argc, char** argv)
+{
+	// XXX get from args
+	const uint32_t src_width = 800;
+	const uint32_t src_height = 480;
+	const auto src_fmt = PixelFormat::XRGB8888;
+	const uint32_t num_src_frames = 10;
+
+	const uint32_t dst_width = 800;
+	const uint32_t dst_height = 480;
+	auto dst_fmt = PixelFormat::XRGB8888;
+
+	const string filename = "wb-out.raw";
+
+	OptionSet optionset = {
+		Option("f|format=", [&](string s)
+		{
+			dst_fmt = FourCCToPixelFormat(s);
+		}),
+		Option("h|help", [&]()
+		{
+			puts(usage_str);
+			exit(-1);
+		}),
+	};
+
+	optionset.parse(argc, argv);
+
+	if (optionset.params().size() > 0) {
+		puts(usage_str);
+		exit(-1);
+	}
+
+	VideoDevice vid("/dev/video10");
+
+	Card card;
+
+	uint32_t src_frame_num = 0;
+	uint32_t dst_frame_num = 0;
+
+	VideoStreamer* out = vid.get_output_streamer();
+	VideoStreamer* in = vid.get_capture_streamer();
+
+	out->set_format(src_fmt, src_width, src_height);
+	in->set_format(dst_fmt, dst_width, dst_height);
+
+	out->set_queue_size(NUM_SRC_BUFS);
+	in->set_queue_size(NUM_DST_BUFS);
+
+
+	for (unsigned i = 0; i < min(NUM_SRC_BUFS, num_src_frames); ++i) {
+		auto fb = new DumbFramebuffer(card, src_width, src_height, src_fmt);
+
+		read_frame(fb, src_frame_num++);
+
+		out->queue(fb);
+	}
+
+	for (unsigned i = 0; i < min(NUM_DST_BUFS, num_src_frames); ++i) {
+		auto fb = new DumbFramebuffer(card, dst_width, dst_height, dst_fmt);
+		in->queue(fb);
+	}
+
+	vector<pollfd> fds(3);
+
+	fds[0].fd = 0;
+	fds[0].events =  POLLIN;
+	fds[1].fd = vid.fd();
+	fds[1].events =  POLLIN;
+	fds[2].fd = card.fd();
+	fds[2].events =  POLLIN;
+
+	ofstream os(filename, ofstream::binary);
+
+	out->stream_on();
+	in->stream_on();
+
+	while (true) {
+		int r = poll(fds.data(), fds.size(), -1);
+		ASSERT(r > 0);
+
+		if (fds[0].revents != 0)
+			break;
+
+		if (fds[1].revents) {
+			fds[1].revents = 0;
+
+
+			try {
+				DumbFramebuffer *dst_fb = in->dequeue();
+				printf("Writing frame %u\n", dst_frame_num);
+				for (unsigned i = 0; i < dst_fb->num_planes(); ++i)
+					os.write((char*)dst_fb->map(i), dst_fb->size(i));
+				in->queue(dst_fb);
+
+				dst_frame_num++;
+
+				if (dst_frame_num >= num_src_frames)
+					break;
+
+			} catch (system_error& se) {
+				if (se.code() != errc::resource_unavailable_try_again)
+					FAIL("dequeue failed: %s", se.what());
+
+				break;
+			}
+
+			DumbFramebuffer *src_fb = out->dequeue();
+
+			if (src_frame_num < num_src_frames) {
+				read_frame(src_fb, src_frame_num++);
+				out->queue(src_fb);
+			}
+		}
+
+		if (fds[2].revents) {
+			fds[2].revents = 0;
+		}
+	}
+
+	printf("exiting...\n");
+}