X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=mixer.cpp;h=6e1e45d953762ba55523248ea9a38345fe669c23;hb=0fff2c95c89541e5b23611962a00886c64c00daa;hp=384047a6b63b2df30f056b7daf0ec1d73dc98d37;hpb=a4adb2fc87296268a86e2303f77ca0fe20664ca2;p=nageru

diff --git a/mixer.cpp b/mixer.cpp
index 384047a..6e1e45d 100644
--- a/mixer.cpp
+++ b/mixer.cpp
@@ -74,11 +74,27 @@ void insert_new_frame(RefCountedFrame frame, unsigned field_num, bool interlaced
 	}
 }
 
+string generate_local_dump_filename(int frame)
+{
+	time_t now = time(NULL);
+	tm now_tm;
+	localtime_r(&now, &now_tm);
+
+	char timestamp[256];
+	strftime(timestamp, sizeof(timestamp), "%F-%T%z", &now_tm);
+
+	// Use the frame number to disambiguate between two cuts starting
+	// on the same second.
+	char filename[256];
+	snprintf(filename, sizeof(filename), "%s%s-f%02d%s",
+		LOCAL_DUMP_PREFIX, timestamp, frame % 100, LOCAL_DUMP_SUFFIX);
+	return filename;
+}
 
 }  // namespace
 
 Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
-	: httpd(LOCAL_DUMP_FILE_NAME, WIDTH, HEIGHT),
+	: httpd(WIDTH, HEIGHT),
 	  num_cards(num_cards),
 	  mixer_surface(create_surface(format)),
 	  h264_encoder_surface(create_surface(format)),
@@ -86,6 +102,7 @@ Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
 	  limiter(OUTPUT_FREQUENCY),
 	  compressor(OUTPUT_FREQUENCY)
 {
+	httpd.open_output_file(generate_local_dump_filename(/*frame=*/0).c_str());
 	httpd.start(9095);
 
 	CHECK(init_movit(MOVIT_SHADER_DIR, MOVIT_DEBUG_OFF));
@@ -146,8 +163,6 @@ Mixer::Mixer(const QSurfaceFormat &format, unsigned num_cards)
 		cards[card_index].usb->start_bm_capture();
 	}
 
-	//chain->enable_phase_timing(true);
-
 	// Set up stuff for NV12 conversion.
 
 	// Cb/Cr shader.
@@ -207,7 +222,7 @@ float find_peak(const float *samples, size_t num_samples)
 {
 	float m = fabs(samples[0]);
 	for (size_t i = 1; i < num_samples; ++i) {
-		m = std::max(m, fabs(samples[i]));
+		m = max(m, fabs(samples[i]));
 	}
 	return m;
 }
@@ -315,11 +330,12 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
 		if (card->should_quit) return;
 	}
 
+	size_t expected_length = width * (height + extra_lines_top + extra_lines_bottom) * 2;
 	if (video_frame.len - video_offset == 0 ||
-	    video_frame.len - video_offset != size_t(width * (height + extra_lines_top + extra_lines_bottom) * 2)) {
+	    video_frame.len - video_offset != expected_length) {
 		if (video_frame.len != 0) {
-			printf("Card %d: Dropping video frame with wrong length (%ld)\n",
-				card_index, video_frame.len - video_offset);
+			printf("Card %d: Dropping video frame with wrong length (%ld; expected %ld)\n",
+				card_index, video_frame.len - video_offset, expected_length);
 		}
 		if (video_frame.owner) {
 			video_frame.owner->release_frame(video_frame);
@@ -345,9 +361,8 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
 	unsigned num_fields = interlaced ? 2 : 1;
 	timespec frame_upload_start;
 	if (interlaced) {
-		// NOTE: This isn't deinterlacing. This is just sending the two fields along
-		// as separate frames without considering anything like the half-field offset.
-		// We'll need to add a proper deinterlacer on the receiving side to get this right.
+		// Send the two fields along as separate frames; the other side will need to add
+		// a deinterlacer to actually get this right.
 		assert(height % 2 == 0);
 		height /= 2;
 		assert(frame_length % 2 == 0);
@@ -355,6 +370,9 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
 		num_fields = 2;
 		clock_gettime(CLOCK_MONOTONIC, &frame_upload_start);
 	}
+	userdata->last_interlaced = interlaced;
+	userdata->last_frame_rate_nom = frame_rate_nom;
+	userdata->last_frame_rate_den = frame_rate_den;
 	RefCountedFrame new_frame(video_frame);
 
 	// Upload the textures.
@@ -388,10 +406,8 @@ void Mixer::bm_frame(unsigned card_index, uint16_t timecode,
 		check_error();
 		glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
 		check_error();
-		glFlushMappedBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, video_frame.size);
+		glMemoryBarrier(GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
 		check_error();
-		//glMemoryBarrier(GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT);
-		//check_error();
 
 		glBindTexture(GL_TEXTURE_2D, userdata->tex_cbcr[field]);
 		check_error();
@@ -562,6 +578,7 @@ void Mixer::thread_func()
 		Theme::Chain theme_main_chain = theme->get_chain(0, pts(), WIDTH, HEIGHT, input_state);
 		EffectChain *chain = theme_main_chain.chain;
 		theme_main_chain.setup_chain();
+		//theme_main_chain.chain->enable_phase_timing(true);
 
 		GLuint y_tex, cbcr_tex;
 		bool got_frame = h264_encoder->begin_frame(&y_tex, &cbcr_tex);
@@ -627,6 +644,15 @@ void Mixer::thread_func()
 		//	chain->print_phase_timing();
 		}
 
+		if (should_cut.exchange(false)) {  // Test and clear.
+			string filename = generate_local_dump_filename(frame);
+			printf("Starting new recording: %s\n", filename.c_str());
+			h264_encoder->shutdown();
+			httpd.close_output_file();
+			httpd.open_output_file(filename.c_str());
+			h264_encoder.reset(new H264Encoder(h264_encoder_surface, WIDTH, HEIGHT, &httpd));
+		}
+
 #if 0
 		// Reset every 100 frames, so that local variations in frame times
 		// (especially for the first few frames, when the shaders are