Bump version: 0.50 → 0.51

.bumpversion.cfg

@@ -1,7 +1,7 @@
 [bumpversion]
 commit = True
 tag = True
-current_version = 0.44
+current_version = 0.51
 parse = (?P<major>\d+)\.(?P<minor>\d+)(\.(?P<patch>\d+)(\-(?P<release>[a-z]+))?)?
 serialize = 
 	{major}.{minor}

PKGBUILD

@@ -3,7 +3,7 @@
 
 
 pkgname=ustreamer
-pkgver=0.44
+pkgver=0.51
 pkgrel=1
 pkgdesc="Lightweight and fast MJPG-HTTP streamer"
 url="https://github.com/pi-kvm/ustreamer"

README.md

@@ -15,7 +15,7 @@
 | Option to skip frames when streaming<br>static images by HTTP to save traffic | ![#00aa00](https://placehold.it/15/00aa00/000000?text=+) Yes <sup>2</sup> | ![#f03c15](https://placehold.it/15/f03c15/000000?text=+) No |
 | Streaming via UNIX domain socket | ![#00aa00](https://placehold.it/15/00aa00/000000?text=+) Yes | ![#f03c15](https://placehold.it/15/f03c15/000000?text=+) No |
 | Debug logs without recompiling,<br>performance statistics log,<br>access to HTTP broadcast parameters | ![#00aa00](https://placehold.it/15/00aa00/000000?text=+) Yes | ![#f03c15](https://placehold.it/15/f03c15/000000?text=+) No |
-| Supported input devices | ![#ffaa00](https://placehold.it/15/ffaa00/000000?text=+) YUYV, UYVY,<br>RGB565, ~~MJPG~~ <sup>3</sup> | ![#00aa00](https://placehold.it/15/00aa00/000000?text=+) YUYV, UYVY,<br>RGB565, MJPG |
+| Supported input formats | ![#ffaa00](https://placehold.it/15/ffaa00/000000?text=+) YUYV, UYVY,<br>RGB565, ~~MJPG~~ <sup>3</sup> | ![#00aa00](https://placehold.it/15/00aa00/000000?text=+) YUYV, UYVY,<br>RGB565, MJPG |
 | Access to webcam controls (focus, servos)<br>and settings such as brightness via HTTP | ![#f03c15](https://placehold.it/15/f03c15/000000?text=+) No | ![#00aa00](https://placehold.it/15/00aa00/000000?text=+) Yes |
 | Option to serve files<br>with a built-in HTTP server, auth settings | ![#f03c15](https://placehold.it/15/f03c15/000000?text=+) No <sup>4</sup> | ![#00aa00](https://placehold.it/15/00aa00/000000?text=+) Yes |
 
@@ -60,7 +60,6 @@ $ ./ustreamer \
     --format=uyvy \ # Device input format
     --encoder=omx \ # Hardware encoding with OpenMAX
     --dv-timings \ # Use DV-timings
-    --quality=20 \ # OpenMAX has a non-linear quality scale
     --drop-same-frames=30 # Save that traffic
 ```
 

README.ru.md

@@ -60,7 +60,6 @@ $ ./ustreamer \
     --format=uyvy \ # Настройка входного формата устройства
     --encoder=omx \ # Использование аппаратного кодирования с помощью OpenMAX
     --dv-timings \ # Включение DV-таймингов
-    --quality=20 \ # У OpenMAX нелинейная шкала качества
     --drop-same-frames=30 # Экономим трафик
 ```
 

src/config.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -21,4 +22,4 @@
 
 #pragma once
 
-#define VERSION "0.44"
+#define VERSION "0.51"

src/data/index_html.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #

src/device.c

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -64,11 +65,11 @@ static int _device_open_format(struct device_t *dev);
 static void _device_open_alloc_picbufs(struct device_t *dev);
 static int _device_open_mmap(struct device_t *dev);
 static int _device_open_queue_buffers(struct device_t *dev);
-static int _device_apply_resolution(struct device_t *dev, const unsigned width, const unsigned height);
+static int _device_apply_resolution(struct device_t *dev, unsigned width, unsigned height);
 
-static const char *_format_to_string_auto(char *buf, const size_t size, const unsigned format);
+static const char *_format_to_string_auto(char *buf, size_t size, unsigned format);
-static const char *_format_to_string_null(const unsigned format);
+static const char *_format_to_string_null(unsigned format);
-static const char *_standard_to_string(const v4l2_std_id standard);
+static const char *_standard_to_string(v4l2_std_id standard);
 
 
 struct device_t *device_init() {
@@ -97,8 +98,8 @@ void device_destroy(struct device_t *dev) {
 	free(dev);
 }
 
-int device_parse_format(const char *const str) {
+int device_parse_format(const char *str) {
-	for (unsigned index = 0; index < sizeof(_FORMATS) / sizeof(_FORMATS[0]); ++index) {
+	for (unsigned index = 0; index < ARRAY_LEN(_FORMATS); ++index) {
 		if (!strcasecmp(str, _FORMATS[index].name)) {
 			return _FORMATS[index].format;
 		}
@@ -106,8 +107,8 @@ int device_parse_format(const char *const str) {
 	return FORMAT_UNKNOWN;
 }
 
-v4l2_std_id device_parse_standard(const char *const str) {
+v4l2_std_id device_parse_standard(const char *str) {
-	for (unsigned index = 1; index < sizeof(_STANDARDS) / sizeof(_STANDARDS[0]); ++index) {
+	for (unsigned index = 1; index < ARRAY_LEN(_STANDARDS); ++index) {
 		if (!strcasecmp(str, _STANDARDS[index].name)) {
 			return _STANDARDS[index].standard;
 		}
@@ -285,6 +286,7 @@ static int _device_apply_dv_timings(struct device_t *dev) {
 
 static int _device_open_format(struct device_t *dev) {
 	struct v4l2_format fmt;
+	char format_str[8];
 
 	MEMSET_ZERO(fmt);
 	fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
@@ -296,8 +298,6 @@ static int _device_open_format(struct device_t *dev) {
 	// Set format
 	LOG_DEBUG("Calling ioctl(VIDIOC_S_FMT) ...");
 	if (xioctl(dev->run->fd, VIDIOC_S_FMT, &fmt) < 0) {
-		char format_str[8];
-
 		LOG_PERROR(
 			"Unable to set format=%s; resolution=%ux%u",
 			_format_to_string_auto(format_str, 8, dev->format),
@@ -318,13 +318,12 @@ static int _device_open_format(struct device_t *dev) {
 
 	// Check format
 	if (fmt.fmt.pix.pixelformat != dev->format) {
-		char format_requested_str[8];
 		char format_obtained_str[8];
 		char *format_str_nullable;
 
 		LOG_ERROR(
 			"Could not obtain the requested pixelformat=%s; driver gave us %s",
-			_format_to_string_auto(format_requested_str, 8, dev->format),
+			_format_to_string_auto(format_str, 8, dev->format),
 			_format_to_string_auto(format_obtained_str, 8, fmt.fmt.pix.pixelformat)
 		);
 
@@ -339,7 +338,9 @@ static int _device_open_format(struct device_t *dev) {
 			return -1;
 		}
 	}
+
 	dev->run->format = fmt.fmt.pix.pixelformat;
+	LOG_INFO("Using pixelformat: %s", _format_to_string_auto(format_str, 8, dev->run->format));
 	return 0;
 }
 
@@ -422,7 +423,7 @@ static void _device_open_alloc_picbufs(struct device_t *dev) {
 	}
 }
 
-static int _device_apply_resolution(struct device_t *dev, const unsigned width, const unsigned height) {
+static int _device_apply_resolution(struct device_t *dev, unsigned width, unsigned height) {
 	// Тут VIDEO_MIN_* не используются из-за странностей минимального разрешения при отсутствии сигнала
 	// у некоторых устройств, например Auvidea B101
 	if (
@@ -438,12 +439,12 @@ static int _device_apply_resolution(struct device_t *dev, const unsigned width,
 	return 0;
 }
 
-static const char *_format_to_string_auto(char *buf, const size_t size, const unsigned format) {
+static const char *_format_to_string_auto(char *buf, size_t size, unsigned format) {
 	assert(size >= 8);
-	buf[0] = format & 0x7f;
+	buf[0] = format & 0x7F;
-	buf[1] = (format >> 8) & 0x7f;
+	buf[1] = (format >> 8) & 0x7F;
-	buf[2] = (format >> 16) & 0x7f;
+	buf[2] = (format >> 16) & 0x7F;
-	buf[3] = (format >> 24) & 0x7f;
+	buf[3] = (format >> 24) & 0x7F;
 	if (format & (1 << 31)) {
 		buf[4] = '-';
 		buf[5] = 'B';
@@ -455,8 +456,8 @@ static const char *_format_to_string_auto(char *buf, const size_t size, const un
 	return buf;
 }
 
-static const char *_format_to_string_null(const unsigned format) {
+static const char *_format_to_string_null(unsigned format) {
-    for (unsigned index = 0; index < sizeof(_FORMATS) / sizeof(_FORMATS[0]); ++index) {
+    for (unsigned index = 0; index < ARRAY_LEN(_FORMATS); ++index) {
 		if (format == _FORMATS[index].format) {
 			return _FORMATS[index].name;
 		}
@@ -465,7 +466,7 @@ static const char *_format_to_string_null(const unsigned format) {
 }
 
 static const char *_standard_to_string(v4l2_std_id standard) {
-	for (unsigned index = 0; index < sizeof(_STANDARDS) / sizeof(_STANDARDS[0]); ++index) {
+	for (unsigned index = 0; index < ARRAY_LEN(_STANDARDS); ++index) {
 		if (standard == _STANDARDS[index].standard) {
 			return _STANDARDS[index].name;
 		}

src/device.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -92,8 +93,8 @@ struct device_t {
 struct device_t *device_init();
 void device_destroy(struct device_t *dev);
 
-int device_parse_format(const char *const str);
+int device_parse_format(const char *str);
-v4l2_std_id device_parse_standard(const char *const str);
+v4l2_std_id device_parse_standard(const char *str);
 
 int device_open(struct device_t *dev);
 void device_close(struct device_t *dev);

src/encoder.c

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -46,11 +47,16 @@ static const struct {
 
 
 struct encoder_t *encoder_init() {
+	struct encoder_runtime_t *run;
 	struct encoder_t *encoder;
 
+	A_CALLOC(run, 1);
+	run->type = ENCODER_TYPE_CPU;
+
 	A_CALLOC(encoder, 1);
-	encoder->type = ENCODER_TYPE_CPU;
+	encoder->type = run->type;
 	encoder->quality = 80;
+	encoder->run = run;
 	return encoder;
 }
 
@@ -60,15 +66,16 @@ void encoder_prepare(struct encoder_t *encoder, struct device_t *dev) {
 #pragma GCC diagnostic pop
 
 	assert(encoder->type != ENCODER_TYPE_UNKNOWN);
+	encoder->run->type = encoder->type;
 
-	if (encoder->type != ENCODER_TYPE_CPU) {
+	if (encoder->run->type != ENCODER_TYPE_CPU) {
 		LOG_DEBUG("Initializing encoder ...");
 	}
 
 	LOG_INFO("Using JPEG quality: %u%%", encoder->quality);
 
 #	ifdef OMX_ENCODER
-	if (encoder->type == ENCODER_TYPE_OMX) {
+	if (encoder->run->type == ENCODER_TYPE_OMX) {
 		if (dev->n_workers > OMX_MAX_ENCODERS) {
 			LOG_INFO(
 				"OMX-based encoder can only work with %u worker threads; forced --workers=%u",
@@ -76,11 +83,11 @@ void encoder_prepare(struct encoder_t *encoder, struct device_t *dev) {
 			);
 			dev->n_workers = OMX_MAX_ENCODERS;
 		}
-		encoder->n_omxs = dev->n_workers;
+		encoder->run->n_omxs = dev->n_workers;
 
-		A_CALLOC(encoder->omxs, encoder->n_omxs);
+		A_CALLOC(encoder->run->omxs, encoder->run->n_omxs);
-		for (unsigned index = 0; index < encoder->n_omxs; ++index) {
+		for (unsigned index = 0; index < encoder->run->n_omxs; ++index) {
-			if ((encoder->omxs[index] = omx_encoder_init()) == NULL) {
+			if ((encoder->run->omxs[index] = omx_encoder_init()) == NULL) {
 				goto use_fallback;
 			}
 		}
@@ -93,26 +100,27 @@ void encoder_prepare(struct encoder_t *encoder, struct device_t *dev) {
 #	pragma GCC diagnostic push
 	use_fallback:
 		LOG_ERROR("Can't initialize selected encoder, using CPU instead it");
-		encoder->type = ENCODER_TYPE_CPU;
+		encoder->run->type = ENCODER_TYPE_CPU;
 #	pragma GCC diagnostic pop
 }
 
 void encoder_destroy(struct encoder_t *encoder) {
 #	ifdef OMX_ENCODER
-	if (encoder->omxs) {
+	if (encoder->run->omxs) {
-		for (unsigned index = 0; index < encoder->n_omxs; ++index) {
+		for (unsigned index = 0; index < encoder->run->n_omxs; ++index) {
-			if (encoder->omxs[index]) {
+			if (encoder->run->omxs[index]) {
-				omx_encoder_destroy(encoder->omxs[index]);
+				omx_encoder_destroy(encoder->run->omxs[index]);
 			}
 		}
-		free(encoder->omxs);
+		free(encoder->run->omxs);
 	}
 #	endif
+	free(encoder->run);
 	free(encoder);
 }
 
-enum encoder_type_t encoder_parse_type(const char *const str) {
+enum encoder_type_t encoder_parse_type(const char *str) {
-	for (unsigned index = 0; index < sizeof(_ENCODER_TYPES) / sizeof(_ENCODER_TYPES[0]); ++index) {
+	for (unsigned index = 0; index < ARRAY_LEN(_ENCODER_TYPES); ++index) {
 		if (!strcasecmp(str, _ENCODER_TYPES[index].name)) {
 			return _ENCODER_TYPES[index].type;
 		}
@@ -123,13 +131,13 @@ enum encoder_type_t encoder_parse_type(const char *const str) {
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic push
 void encoder_prepare_live(struct encoder_t *encoder, struct device_t *dev) {
-	assert(encoder->type != ENCODER_TYPE_UNKNOWN);
+	assert(encoder->run->type != ENCODER_TYPE_UNKNOWN);
 
 #pragma GCC diagnostic pop
 #	ifdef OMX_ENCODER
-	if (encoder->type == ENCODER_TYPE_OMX) {
+	if (encoder->run->type == ENCODER_TYPE_OMX) {
-		for (unsigned index = 0; index < encoder->n_omxs; ++index) {
+		for (unsigned index = 0; index < encoder->run->n_omxs; ++index) {
-			if (omx_encoder_prepare_live(encoder->omxs[index], dev, encoder->quality) < 0) {
+			if (omx_encoder_prepare_live(encoder->run->omxs[index], dev, encoder->quality) < 0) {
 				goto use_fallback;
 			}
 		}
@@ -142,24 +150,23 @@ void encoder_prepare_live(struct encoder_t *encoder, struct device_t *dev) {
 #	pragma GCC diagnostic push
 	use_fallback:
 		LOG_ERROR("Can't prepare selected encoder, falling back to CPU");
-		encoder->type = ENCODER_TYPE_CPU;
+		encoder->run->type = ENCODER_TYPE_CPU;
 #	pragma GCC diagnostic pop
 }
 
 #pragma GCC diagnostic ignored "-Wunused-label"
 #pragma GCC diagnostic push
-int encoder_compress_buffer(struct encoder_t *encoder, struct device_t *dev,
+int encoder_compress_buffer(struct encoder_t *encoder, struct device_t *dev, unsigned worker_number, unsigned buf_index) {
-	const unsigned worker_number, const unsigned buf_index) {
 #pragma GCC diagnostic pop
 
-	assert(encoder->type != ENCODER_TYPE_UNKNOWN);
+	assert(encoder->run->type != ENCODER_TYPE_UNKNOWN);
 
-	if (encoder->type == ENCODER_TYPE_CPU) {
+	if (encoder->run->type == ENCODER_TYPE_CPU) {
 		jpeg_encoder_compress_buffer(dev, buf_index, encoder->quality);
 	}
 #	ifdef OMX_ENCODER
-	else if (encoder->type == ENCODER_TYPE_OMX) {
+	else if (encoder->run->type == ENCODER_TYPE_OMX) {
-		if (omx_encoder_compress_buffer(encoder->omxs[worker_number], dev, buf_index) < 0) {
+		if (omx_encoder_compress_buffer(encoder->run->omxs[worker_number], dev, buf_index) < 0) {
 			goto error;
 		}
 	}
@@ -171,7 +178,7 @@ int encoder_compress_buffer(struct encoder_t *encoder, struct device_t *dev,
 #	pragma GCC diagnostic push
 	error:
 		LOG_INFO("HW compressing error, falling back to CPU");
-		encoder->type = ENCODER_TYPE_CPU;
+		encoder->run->type = ENCODER_TYPE_CPU;
 		return -1;
 #	pragma GCC diagnostic pop
 }

src/encoder.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -44,9 +45,8 @@ enum encoder_type_t {
 #endif
 };
 
-struct encoder_t {
+struct encoder_runtime_t {
-	enum encoder_type_t		type;
+	enum encoder_type_t type;
-	unsigned				quality;
 #ifdef OMX_ENCODER
 	unsigned				n_omxs;
 	struct omx_encoder_t	**omxs;
@@ -54,13 +54,20 @@ struct encoder_t {
 };
 
 
+struct encoder_t {
+	enum encoder_type_t	type;
+	unsigned			quality;
+
+	struct encoder_runtime_t *run;
+};
+
+
 struct encoder_t *encoder_init();
 void encoder_destroy(struct encoder_t *encoder);
 
-enum encoder_type_t encoder_parse_type(const char *const str);
+enum encoder_type_t encoder_parse_type(const char *str);
 
 void encoder_prepare(struct encoder_t *encoder, struct device_t *dev);
 void encoder_prepare_live(struct encoder_t *encoder, struct device_t *dev);
 
-int encoder_compress_buffer(struct encoder_t *encoder, struct device_t *dev,
+int encoder_compress_buffer(struct encoder_t *encoder, struct device_t *dev, unsigned worker_number, unsigned buf_index);
-	const unsigned worker_number, const unsigned buf_index);

src/http.c

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -65,7 +66,7 @@ static void _http_callback_stream_write(struct bufferevent *buf_event, void *v_c
 static void _http_callback_stream_error(struct bufferevent *buf_event, short what, void *v_ctx);
 
 static void _http_exposed_refresh(int fd, short event, void *v_server);
-static void _http_queue_send_stream(struct http_server_t *server, const bool stream_updated, const bool picture_updated);
+static void _http_queue_send_stream(struct http_server_t *server, bool stream_updated, bool picture_updated);
 
 static bool _expose_new_picture(struct http_server_t *server);
 static bool _expose_blank_picture(struct http_server_t *server);
@@ -117,6 +118,14 @@ void http_server_destroy(struct http_server_t *server) {
 	event_base_free(server->run->base);
 	libevent_global_shutdown();
 
+	for (struct stream_client_t *client = server->run->stream_clients; client != NULL;) {
+		struct stream_client_t *next = client->next;
+
+		free(client->key);
+		free(client);
+		client = next;
+	}
+
 	free(server->run->exposed->picture.data);
 	free(server->run->exposed);
 	free(server->run);
@@ -252,14 +261,16 @@ static void _http_callback_state(struct evhttp_request *request, void *v_server)
 
 	assert((buf = evbuffer_new()));
 	assert(evbuffer_add_printf(buf,
-		"{\"ok\": true, \"result\":"
+		"{\"ok\": true, \"result\": {"
-		" {\"source\": {\"resolution\": {\"width\": %u, \"height\": %u},"
+		" \"encoder\": {\"fallback\": %s, \"quality\": %u},"
-		" \"online\": %s, \"quality\": %u, \"desired_fps\": %u, \"captured_fps\": %u},"
+		" \"source\": {\"resolution\": {\"width\": %u, \"height\": %u},"
+		" \"online\": %s, \"desired_fps\": %u, \"captured_fps\": %u},"
 		" \"stream\": {\"queued_fps\": %u, \"clients\": %u, \"clients_stat\": {",
+		bool_to_string(server->run->stream->encoder->type != server->run->stream->encoder->run->type),
+		server->run->stream->encoder->quality,
 		(server->fake_width ? server->fake_width : server->run->exposed->width),
 		(server->fake_height ? server->fake_height : server->run->exposed->height),
 		bool_to_string(server->run->exposed->online),
-		server->run->stream->encoder->quality,
 		server->run->stream->dev->desired_fps,
 		server->run->exposed->captured_fps,
 		server->run->exposed->queued_fps,
@@ -296,7 +307,7 @@ static void _http_callback_snapshot(struct evhttp_request *request, void *v_serv
 	assert(!evbuffer_add(buf, (const void *)EXPOSED(picture.data), EXPOSED(picture.size)));
 
 	ADD_HEADER("Access-Control-Allow-Origin:", "*");
-	ADD_HEADER("Cache-Control", "no-store, no-cache, must-revalidate, pre-check=0, post-check=0, max-age=0");
+	ADD_HEADER("Cache-Control", "no-store, no-cache, must-revalidate, proxy-revalidate, pre-check=0, post-check=0, max-age=0");
 	ADD_HEADER("Pragma", "no-cache");
 	ADD_HEADER("Expires", "Mon, 3 Jan 2000 12:34:56 GMT");
 
@@ -309,6 +320,7 @@ static void _http_callback_snapshot(struct evhttp_request *request, void *v_serv
 	ADD_TIME_HEADER("X-Timestamp", get_now_real());
 
 	ADD_HEADER("X-UStreamer-Online",					bool_to_string(EXPOSED(online)));
+	ADD_UNSIGNED_HEADER("X-UStreamer-Dropped",			EXPOSED(dropped));
 	ADD_UNSIGNED_HEADER("X-UStreamer-Width",			EXPOSED(width));
 	ADD_UNSIGNED_HEADER("X-UStreamer-Height",			EXPOSED(height));
 	ADD_TIME_HEADER("X-UStreamer-Grab-Time",			EXPOSED(picture.grab_time));
@@ -446,7 +458,7 @@ static void _http_callback_stream_write(struct bufferevent *buf_event, void *v_c
 		assert(evbuffer_add_printf(buf,
 			"HTTP/1.0 200 OK" RN
 			"Access-Control-Allow-Origin: *" RN
-			"Cache-Control: no-store, no-cache, must-revalidate, pre-check=0, post-check=0, max-age=0" RN
+			"Cache-Control: no-store, no-cache, must-revalidate, proxy-revalidate, pre-check=0, post-check=0, max-age=0" RN
 			"Pragma: no-cache" RN
 			"Expires: Mon, 3 Jan 2000 12:34:56 GMT" RN
 			"Set-Cookie: stream_client=%s/%s; path=/; max-age=30" RN
@@ -479,6 +491,7 @@ static void _http_callback_stream_write(struct bufferevent *buf_event, void *v_c
 		if (client->extra_headers) {
 			assert(evbuffer_add_printf(buf,
 				"X-UStreamer-Online: %s" RN
+				"X-UStreamer-Dropped: %u" RN
 				"X-UStreamer-Width: %u" RN
 				"X-UStreamer-Height: %u" RN
 				"X-UStreamer-Client-FPS: %u" RN
@@ -491,6 +504,7 @@ static void _http_callback_stream_write(struct bufferevent *buf_event, void *v_c
 				"X-UStreamer-Send-Time: %.06Lf" RN
 				RN,
 				bool_to_string(EXPOSED(online)),
+				EXPOSED(dropped),
 				EXPOSED(width),
 				EXPOSED(height),
 				client->fps,
@@ -559,7 +573,7 @@ static void _http_callback_stream_error(UNUSED struct bufferevent *buf_event, UN
 	free(client);
 }
 
-static void _http_queue_send_stream(struct http_server_t *server, const bool stream_updated, const bool picture_updated) {
+static void _http_queue_send_stream(struct http_server_t *server, bool stream_updated, bool picture_updated) {
 	struct evhttp_connection *conn;
 	struct bufferevent *buf_event;
 	long long now;

src/http.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #

src/jpeg/encoder.c

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    This source file based on code of MJPG-Streamer.                        #
@@ -48,24 +49,27 @@ struct _mjpg_destination_mgr {
 
 static void _jpeg_set_dest_picture(j_compress_ptr jpeg, unsigned char *picture, unsigned long *written);
 
-static void _jpeg_write_scanlines_yuyv(struct jpeg_compress_struct *jpeg,
+static void _jpeg_write_scanlines_yuyv(
-    unsigned char *line_buffer, const unsigned char *data,
+	struct jpeg_compress_struct *jpeg,
-    const unsigned width, const unsigned height);
-
-static void _jpeg_write_scanlines_uyvy(struct jpeg_compress_struct *jpeg,
 	unsigned char *line_buffer, const unsigned char *data,
-	const unsigned width, const unsigned height);
+	unsigned width, unsigned height);
 
-static void _jpeg_write_scanlines_rgb565(struct jpeg_compress_struct *jpeg,
+static void _jpeg_write_scanlines_uyvy(
+	struct jpeg_compress_struct *jpeg,
 	unsigned char *line_buffer, const unsigned char *data,
-	const unsigned width, const unsigned height);
+	unsigned width, unsigned height);
+
+static void _jpeg_write_scanlines_rgb565(
+	struct jpeg_compress_struct *jpeg,
+	unsigned char *line_buffer, const unsigned char *data,
+	unsigned width, unsigned height);
 
 static void _jpeg_init_destination(j_compress_ptr jpeg);
 static boolean _jpeg_empty_output_buffer(j_compress_ptr jpeg);
 static void _jpeg_term_destination(j_compress_ptr jpeg);
 
 
-void jpeg_encoder_compress_buffer(struct device_t *dev, const unsigned index, const unsigned quality) {
+void jpeg_encoder_compress_buffer(struct device_t *dev, unsigned index, unsigned quality) {
 	// This function based on compress_image_to_jpeg() from mjpg-streamer
 
 	struct jpeg_compress_struct jpeg;
@@ -92,6 +96,7 @@ void jpeg_encoder_compress_buffer(struct device_t *dev, const unsigned index, co
 
 #	define WRITE_SCANLINES(_func) \
 		_func(&jpeg, line_buffer, dev->run->hw_buffers[index].start, dev->run->width, dev->run->height)
+
 	switch (dev->run->format) {
 		// https://www.fourcc.org/yuv.php
 		case V4L2_PIX_FMT_YUYV: WRITE_SCANLINES(_jpeg_write_scanlines_yuyv); break;
@@ -99,6 +104,7 @@ void jpeg_encoder_compress_buffer(struct device_t *dev, const unsigned index, co
 		case V4L2_PIX_FMT_RGB565: WRITE_SCANLINES(_jpeg_write_scanlines_rgb565); break;
 		default: assert(0 && "Unsupported input format for JPEG compressor");
 	}
+
 #	undef WRITE_SCANLINES
 
 	// TODO: process jpeg errors:
@@ -127,9 +133,12 @@ static void _jpeg_set_dest_picture(j_compress_ptr jpeg, unsigned char *picture,
 	dest->written = written;
 }
 
-static void _jpeg_write_scanlines_yuyv(struct jpeg_compress_struct *jpeg,
+#define NORM_COMPONENT(_x) (((_x) > 255) ? 255 : (((_x) < 0) ? 0 : (_x)))
+
+static void _jpeg_write_scanlines_yuyv(
+	struct jpeg_compress_struct *jpeg,
 	unsigned char *line_buffer, const unsigned char *data,
-	const unsigned width, const unsigned height) {
+	unsigned width, unsigned height) {
 
 	JSAMPROW scanlines[1];
 	unsigned z = 0;
@@ -146,9 +155,9 @@ static void _jpeg_write_scanlines_yuyv(struct jpeg_compress_struct *jpeg,
 			int g = (y - (88 * u) - (183 * v)) >> 8;
 			int b = (y + (454 * u)) >> 8;
 
-			*(ptr++) = (r > 255) ? 255 : ((r < 0) ? 0 : r);
+			*(ptr++) = NORM_COMPONENT(r);
-			*(ptr++) = (g > 255) ? 255 : ((g < 0) ? 0 : g);
+			*(ptr++) = NORM_COMPONENT(g);
-			*(ptr++) = (b > 255) ? 255 : ((b < 0) ? 0 : b);
+			*(ptr++) = NORM_COMPONENT(b);
 
 			if (z++) {
 				z = 0;
@@ -161,9 +170,10 @@ static void _jpeg_write_scanlines_yuyv(struct jpeg_compress_struct *jpeg,
 	}
 }
 
-static void _jpeg_write_scanlines_uyvy(struct jpeg_compress_struct *jpeg,
+static void _jpeg_write_scanlines_uyvy(
+	struct jpeg_compress_struct *jpeg,
 	unsigned char *line_buffer, const unsigned char *data,
-	const unsigned width, const unsigned height) {
+	unsigned width, unsigned height) {
 
 	JSAMPROW scanlines[1];
 	unsigned z = 0;
@@ -180,9 +190,9 @@ static void _jpeg_write_scanlines_uyvy(struct jpeg_compress_struct *jpeg,
 			int g = (y - (88 * u) - (183 * v)) >> 8;
 			int b = (y + (454 * u)) >> 8;
 
-			*(ptr++) = (r > 255) ? 255 : ((r < 0) ? 0 : r);
+			*(ptr++) = NORM_COMPONENT(r);
-			*(ptr++) = (g > 255) ? 255 : ((g < 0) ? 0 : g);
+			*(ptr++) = NORM_COMPONENT(g);
-			*(ptr++) = (b > 255) ? 255 : ((b < 0) ? 0 : b);
+			*(ptr++) = NORM_COMPONENT(b);
 
 			if (z++) {
 				z = 0;
@@ -195,9 +205,12 @@ static void _jpeg_write_scanlines_uyvy(struct jpeg_compress_struct *jpeg,
 	}
 }
 
-static void _jpeg_write_scanlines_rgb565(struct jpeg_compress_struct *jpeg,
+#undef NORM_COMPONENT
+
+static void _jpeg_write_scanlines_rgb565(
+	struct jpeg_compress_struct *jpeg,
 	unsigned char *line_buffer, const unsigned char *data,
-	const unsigned width, const unsigned height) {
+	unsigned width, unsigned height) {
 
 	JSAMPROW scanlines[1];
 

src/jpeg/encoder.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -24,4 +25,4 @@
 #include "../device.h"
 
 
-void jpeg_encoder_compress_buffer(struct device_t *dev, const unsigned index, const unsigned quality);
+void jpeg_encoder_compress_buffer(struct device_t *dev, unsigned index, unsigned quality);

src/logging.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #

src/main.c

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -40,7 +41,7 @@
 #include "http.h"
 
 
-static const char _short_opts[] = "d:i:x:y:f:a:z:tn:w:q:c:s:p:u:ro:e:h";
+static const char _short_opts[] = "d:i:x:y:m:a:f:z:tb:w:q:c:s:p:u:ro:e:h";
 static const struct option _long_opts[] = {
 	{"device",					required_argument,	NULL,	'd'},
 	{"input",					required_argument,	NULL,	'i'},

src/omx/component.c

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -30,11 +31,11 @@
 #include "component.h"
 
 
-static int _component_wait_port_changed(OMX_HANDLETYPE *component, const OMX_U32 port, const OMX_BOOL enabled);
+static int _component_wait_port_changed(OMX_HANDLETYPE *component, OMX_U32 port, OMX_BOOL enabled);
-static int _component_wait_state_changed(OMX_HANDLETYPE *component, const OMX_STATETYPE wanted);
+static int _component_wait_state_changed(OMX_HANDLETYPE *component, OMX_STATETYPE wanted);
 
 
-int component_enable_port(OMX_HANDLETYPE *component, const OMX_U32 port) {
+int component_enable_port(OMX_HANDLETYPE *component, OMX_U32 port) {
 	OMX_ERRORTYPE error;
 
 	LOG_DEBUG("Enabling OMX port %u ...", port);
@@ -45,7 +46,7 @@ int component_enable_port(OMX_HANDLETYPE *component, const OMX_U32 port) {
 	return _component_wait_port_changed(component, port, OMX_TRUE);
 }
 
-int component_disable_port(OMX_HANDLETYPE *component, const OMX_U32 port) {
+int component_disable_port(OMX_HANDLETYPE *component, OMX_U32 port) {
 	OMX_ERRORTYPE error;
 
 	LOG_DEBUG("Disabling OMX port %u ...", port);
@@ -56,7 +57,7 @@ int component_disable_port(OMX_HANDLETYPE *component, const OMX_U32 port) {
 	return _component_wait_port_changed(component, port, OMX_FALSE);
 }
 
-int component_get_portdef(OMX_HANDLETYPE *component, OMX_PARAM_PORTDEFINITIONTYPE *portdef, const OMX_U32 port) {
+int component_get_portdef(OMX_HANDLETYPE *component, OMX_PARAM_PORTDEFINITIONTYPE *portdef, OMX_U32 port) {
 	OMX_ERRORTYPE error;
 
 	OMX_INIT_STRUCTURE(*portdef);
@@ -81,8 +82,8 @@ int component_set_portdef(OMX_HANDLETYPE *component, OMX_PARAM_PORTDEFINITIONTYP
 	return 0;
 }
 
-int component_set_state(OMX_HANDLETYPE *component, const OMX_STATETYPE state) {
+int component_set_state(OMX_HANDLETYPE *component, OMX_STATETYPE state) {
-	const char *const state_str = omx_state_to_string(state);
+	const char *state_str = omx_state_to_string(state);
 	OMX_ERRORTYPE error;
 	int retries = 50;
 
@@ -107,7 +108,7 @@ int component_set_state(OMX_HANDLETYPE *component, const OMX_STATETYPE state) {
 }
 
 
-static int _component_wait_port_changed(OMX_HANDLETYPE *component, const OMX_U32 port, const OMX_BOOL enabled) {
+static int _component_wait_port_changed(OMX_HANDLETYPE *component, OMX_U32 port, OMX_BOOL enabled) {
 	OMX_ERRORTYPE error;
 	OMX_PARAM_PORTDEFINITIONTYPE portdef;
 	int retries = 50;
@@ -132,7 +133,7 @@ static int _component_wait_port_changed(OMX_HANDLETYPE *component, const OMX_U32
 	return (portdef.bEnabled == enabled ? 0 : -1);
 }
 
-static int _component_wait_state_changed(OMX_HANDLETYPE *component, const OMX_STATETYPE wanted) {
+static int _component_wait_state_changed(OMX_HANDLETYPE *component, OMX_STATETYPE wanted) {
 	OMX_ERRORTYPE error;
 	OMX_STATETYPE state;
 	int retries = 50;

src/omx/component.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -38,10 +39,10 @@
 	}
 
 
-int component_enable_port(OMX_HANDLETYPE *component, const OMX_U32 port);
+int component_enable_port(OMX_HANDLETYPE *component, OMX_U32 port);
-int component_disable_port(OMX_HANDLETYPE *component, const OMX_U32 port);
+int component_disable_port(OMX_HANDLETYPE *component, OMX_U32 port);
 
-int component_get_portdef(OMX_HANDLETYPE *component, OMX_PARAM_PORTDEFINITIONTYPE *portdef, const OMX_U32 port);
+int component_get_portdef(OMX_HANDLETYPE *component, OMX_PARAM_PORTDEFINITIONTYPE *portdef, OMX_U32 port);
 int component_set_portdef(OMX_HANDLETYPE *component, OMX_PARAM_PORTDEFINITIONTYPE *portdef);
 
-int component_set_state(OMX_HANDLETYPE *component, const OMX_STATETYPE state);
+int component_set_state(OMX_HANDLETYPE *component, OMX_STATETYPE state);

src/omx/encoder.c

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -51,17 +52,20 @@ static int _i_omx = 0;
 static int _omx_init_component(struct omx_encoder_t *omx);
 static int _omx_init_disable_ports(struct omx_encoder_t *omx);
 static int _omx_setup_input(struct omx_encoder_t *omx, struct device_t *dev);
-static int _omx_setup_output(struct omx_encoder_t *omx, const unsigned quality);
+static int _omx_setup_output(struct omx_encoder_t *omx, unsigned quality);
 static int _omx_encoder_clear_ports(struct omx_encoder_t *omx);
 
-static OMX_ERRORTYPE _omx_event_handler(UNUSED OMX_HANDLETYPE encoder,
+static OMX_ERRORTYPE _omx_event_handler(
+	UNUSED OMX_HANDLETYPE encoder,
 	OMX_PTR v_omx, OMX_EVENTTYPE event, OMX_U32 data1,
 	UNUSED OMX_U32 data2, UNUSED OMX_PTR event_data);
 
-static OMX_ERRORTYPE _omx_input_required_handler(UNUSED OMX_HANDLETYPE encoder,
+static OMX_ERRORTYPE _omx_input_required_handler(
+	UNUSED OMX_HANDLETYPE encoder,
 	OMX_PTR v_omx, UNUSED OMX_BUFFERHEADERTYPE *buffer);
 
-static OMX_ERRORTYPE _omx_output_available_handler(UNUSED OMX_HANDLETYPE encoder,
+static OMX_ERRORTYPE _omx_output_available_handler(
+	UNUSED OMX_HANDLETYPE encoder,
 	OMX_PTR v_omx, UNUSED OMX_BUFFERHEADERTYPE *buffer);
 
 
@@ -148,7 +152,7 @@ void omx_encoder_destroy(struct omx_encoder_t *omx) {
 	free(omx);
 }
 
-int omx_encoder_prepare_live(struct omx_encoder_t *omx, struct device_t *dev, const unsigned quality) {
+int omx_encoder_prepare_live(struct omx_encoder_t *omx, struct device_t *dev, unsigned quality) {
 	if (component_set_state(&omx->encoder, OMX_StateIdle) < 0) {
 		return -1;
 	}
@@ -167,7 +171,7 @@ int omx_encoder_prepare_live(struct omx_encoder_t *omx, struct device_t *dev, co
 	return 0;
 }
 
-int omx_encoder_compress_buffer(struct omx_encoder_t *omx, struct device_t *dev, const unsigned index) {
+int omx_encoder_compress_buffer(struct omx_encoder_t *omx, struct device_t *dev, unsigned index) {
 	OMX_ERRORTYPE error;
 	bool loaded = false;
 
@@ -329,7 +333,7 @@ static int _omx_setup_input(struct omx_encoder_t *omx, struct device_t *dev) {
 	return 0;
 }
 
-static int _omx_setup_output(struct omx_encoder_t *omx, const unsigned quality) {
+static int _omx_setup_output(struct omx_encoder_t *omx, unsigned quality) {
 	OMX_ERRORTYPE error;
 	OMX_PARAM_PORTDEFINITIONTYPE portdef;
 
@@ -433,7 +437,8 @@ static int _omx_encoder_clear_ports(struct omx_encoder_t *omx) {
 	return retcode;
 }
 
-static OMX_ERRORTYPE _omx_event_handler(UNUSED OMX_HANDLETYPE encoder,
+static OMX_ERRORTYPE _omx_event_handler(
+	UNUSED OMX_HANDLETYPE encoder,
 	OMX_PTR v_omx, OMX_EVENTTYPE event, OMX_U32 data1,
 	UNUSED OMX_U32 data2, UNUSED OMX_PTR event_data) {
 
@@ -449,7 +454,8 @@ static OMX_ERRORTYPE _omx_event_handler(UNUSED OMX_HANDLETYPE encoder,
 	return OMX_ErrorNone;
 }
 
-static OMX_ERRORTYPE _omx_input_required_handler(UNUSED OMX_HANDLETYPE encoder,
+static OMX_ERRORTYPE _omx_input_required_handler(
+	UNUSED OMX_HANDLETYPE encoder,
 	OMX_PTR v_omx, UNUSED OMX_BUFFERHEADERTYPE *buffer) {
 
 	// Called by OMX when the encoder component requires
@@ -462,7 +468,8 @@ static OMX_ERRORTYPE _omx_input_required_handler(UNUSED OMX_HANDLETYPE encoder,
 	return OMX_ErrorNone;
 }
 
-static OMX_ERRORTYPE _omx_output_available_handler(UNUSED OMX_HANDLETYPE encoder,
+static OMX_ERRORTYPE _omx_output_available_handler(
+	UNUSED OMX_HANDLETYPE encoder,
 	OMX_PTR v_omx, UNUSED OMX_BUFFERHEADERTYPE *buffer) {
 
 	// Called by OMX when the encoder component has filled

src/omx/encoder.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -51,5 +52,5 @@ struct omx_encoder_t {
 struct omx_encoder_t *omx_encoder_init();
 void omx_encoder_destroy(struct omx_encoder_t *omx);
 
-int omx_encoder_prepare_live(struct omx_encoder_t *omx, struct device_t *dev, const unsigned quality);
+int omx_encoder_prepare_live(struct omx_encoder_t *omx, struct device_t *dev, unsigned quality);
-int omx_encoder_compress_buffer(struct omx_encoder_t *omx, struct device_t *dev, const unsigned index);
+int omx_encoder_compress_buffer(struct omx_encoder_t *omx, struct device_t *dev, unsigned index);

src/omx/formatters.c

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -38,7 +39,7 @@
 		assert(0 && _buf); \
 	}
 
-const char *omx_error_to_string(const OMX_ERRORTYPE error) {
+const char *omx_error_to_string(OMX_ERRORTYPE error) {
 	switch (error) {
 		CASE_TO_STRING(OMX_ErrorNone);
 		CASE_TO_STRING(OMX_ErrorInsufficientResources);
@@ -69,7 +70,7 @@ const char *omx_error_to_string(const OMX_ERRORTYPE error) {
 	}
 }
 
-const char *omx_state_to_string(const OMX_STATETYPE state) {
+const char *omx_state_to_string(OMX_STATETYPE state) {
 	switch (state) {
 		CASE_TO_STRING(OMX_StateLoaded);
 		CASE_TO_STRING(OMX_StateIdle);

src/omx/formatters.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -41,5 +42,5 @@
 	}
 
 
-const char *omx_error_to_string(const OMX_ERRORTYPE error);
+const char *omx_error_to_string(OMX_ERRORTYPE error);
-const char *omx_state_to_string(const OMX_STATETYPE state);
+const char *omx_state_to_string(OMX_STATETYPE state);

src/stream.c

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -48,7 +49,7 @@ static void _stream_init_workers(struct device_t *dev, struct workers_pool_t *po
 static void *_stream_worker_thread(void *v_ctx);
 static void _stream_destroy_workers(struct device_t *dev, struct workers_pool_t *pool);
 
-static int _stream_control(struct device_t *dev, const bool enable);
+static int _stream_control(struct device_t *dev, bool enable);
 static int _stream_grab_buffer(struct device_t *dev, struct v4l2_buffer *buf_info);
 static int _stream_release_buffer(struct device_t *dev, struct v4l2_buffer *buf_info);
 static int _stream_handle_event(struct device_t *dev);
@@ -499,7 +500,7 @@ static void _stream_destroy_workers(struct device_t *dev, struct workers_pool_t
 	pool->workers = NULL;
 }
 
-static int _stream_control(struct device_t *dev, const bool enable) {
+static int _stream_control(struct device_t *dev, bool enable) {
 	if (enable != dev->run->capturing) {
 		enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 

src/stream.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #

src/tools.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -47,18 +48,18 @@
 #define A_PTHREAD_C_SIGNAL(...)		assert(!pthread_cond_signal(__VA_ARGS__))
 #define A_PTHREAD_C_WAIT_TRUE(_var, _cond, _mutex) { while(!_var) assert(!pthread_cond_wait(_cond, _mutex)); }
 
-
 #define A_CALLOC(_dest, _nmemb)		assert((_dest = calloc(_nmemb, sizeof(*(_dest)))))
 #define A_REALLOC(_dest, _nmemb)	assert((_dest = realloc(_dest, _nmemb * sizeof(*(_dest)))))
 #define MEMSET_ZERO(_obj)			memset(&(_obj), 0, sizeof(_obj))
 #define MEMSET_ZERO_PTR(_ptr)		memset(_ptr, 0, sizeof(*(_ptr)))
 
+#define ARRAY_LEN(_array) (sizeof(_array) / sizeof(_array[0]))
 
 #define INLINE inline __attribute__((always_inline))
 #define UNUSED __attribute__((unused))
 
 
-INLINE char *bool_to_string(const bool flag) {
+INLINE char *bool_to_string(bool flag) {
 	return (flag ? "true" : "false");
 }
 

src/xioctl.h

@@ -1,4 +1,5 @@
 /*****************************************************************************
+#                                                                            #
 #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
 #                                                                            #
 #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
@@ -32,7 +33,7 @@
 #define XIOCTL_RETRIES 4
 
 
-INLINE int xioctl(const int fd, const int request, void *arg) {
+INLINE int xioctl(int fd, int request, void *arg) {
 	int retries = XIOCTL_RETRIES;
 	int retval = -1;
 

tools/make-html-h.py

@@ -44,6 +44,7 @@ def main():
     text = "const char *%s = \" \\\n%s\n\";\n" % (name, text)
     text = textwrap.dedent("""
         /*****************************************************************************
+        #                                                                            #
         #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
         #                                                                            #
         #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #

tools/make-jpeg-h.py

@@ -42,7 +42,7 @@ def main():
     for ch in jpg_data:
         if len(rows[-1]) > 20:
             rows.append([])
-        rows[-1].append(hex(ch))
+        rows[-1].append("0x%.2X" % (ch))
 
     text = ",\n\t".join(", ".join(row) for row in rows)
     text = "const unsigned char %s_JPG_DATA[] = {\n\t%s\n};\n" % (prefix, text)
@@ -51,6 +51,7 @@ def main():
     text = "const unsigned %s_JPG_WIDTH = %d;\n" % (prefix, width) + text
     text = textwrap.dedent("""
         /*****************************************************************************
+        #                                                                            #
         #    uStreamer - Lightweight and fast MJPG-HTTP streamer.                    #
         #                                                                            #
         #    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #