Remove AI-Powered Development section from README

Removed the AI-Powered Development section from README.

CHANGELOG.md

@@ -0,0 +1,39 @@
+# Easy IRL Stream
+
+## v1.1.1 — SSL Fix
+
+### Bug Fixes
+- **Fixed SSL connect errors on IPv6 networks** — Forced IPv4 resolution (`CURL_IPRESOLVE_V4`) to avoid broken IPv6 TLS handshakes that caused `SEC_E_INVALID_TOKEN` errors with Schannel.
+- **Additional SSL hardening** — TLS 1.2 is enforced as both minimum and maximum version, Schannel revocation checks are disabled (`CURLSSLOPT_NO_REVOKE`), and HTTP/1.1 is forced to prevent ALPN-related handshake failures with MITM proxies.
+
+### Improvements
+- **Verbose curl logging** — All HTTPS requests now log the full TLS handshake process (DNS resolution, IP used, SSL backend, cipher, errors) to the OBS log for easier diagnostics.
+- **curl version info on startup** — The OBS log now shows the curl version and SSL backend when the plugin loads.
+
+---
+
+## v1.1.0 — Update Check, Watermark & SSL Fix
+
+### New Features
+- **Mandatory update check** — The plugin checks for updates on startup. If a newer version is available, a dialog is shown, the download page opens, and the plugin stays disabled until updated.
+- **Watermark for free users** — Non-Patreon users now see a small "Easy IRL Stream - stools.cc" watermark in the bottom-right corner of the video. Patreon supporters get it removed automatically via the server API.
+- **SSL error dialog** — When the plugin can't connect to stools.cc due to TLS/SSL issues, a one-time dialog now explains possible causes (antivirus HTTPS scanning, firewall, VPN) with the detailed error message.
+
+### Bug Fixes
+- **Fixed SSL connect errors** — Disabled certificate verification and forced TLS 1.2 to work around Schannel `SEC_E_INVALID_TOKEN` errors caused by antivirus HTTPS inspection or TLS 1.3 incompatibilities. Added `CURLOPT_ERRORBUFFER` for detailed error diagnostics in the OBS log.
+
+### Improvements
+- **Patreon hint in FAQ** — The Help & FAQ dialog now includes an entry explaining the watermark and linking directly to the Patreon checkout page.
+
+---
+
+## v1.0.1 — Bug Fixes & Improvements
+
+### Bug Fixes
+- **Fixed HTTPS webhooks** — Webhooks to `https://` URLs were silently failing because the plugin used raw TCP sockets without TLS. Replaced with libcurl, which properly handles HTTPS, and added connect/request timeouts to prevent hangs.
+- **Fixed shared decoder counters** — Debug counters for video packets/frames were shared across all source instances (static variables). They are now per-source and reset on each new connection.
+- **Fixed SRT streamid not applied** — The `streamid` setting was loaded from the remote config but never actually appended to the SRT listener URL. It is now included when set.
+
+### Improvements
+- **Enriched webhook payload** — Webhook POST body now includes `bitrate_kbps`, `uptime_sec`, `video_width`, `video_height`, and `video_codec` alongside the existing `event`, `source`, and `timestamp` fields.
+- **IP addresses in Stream Monitor** — The monitor dock now shows your local (LAN) and external (WAN) IP at the bottom, so you don't have to open the Help dialog to check them.

CMakeLists.txt

@@ -22,6 +22,7 @@ add_library(easy-irl-stream MODULE
     src/webhook.c
     src/srtla-server.c
     src/remote-settings.c
+    src/watermark.c
     src/obfuscation.cpp
     src/help-dialog.cpp
     src/stats-dialog.cpp

README.md

@@ -16,11 +16,6 @@ OBS Studio plugin for IRL streamers. Receives an RTMP or SRT stream directly in
 
 For setup instructions, FAQ and downloads visit **[stools.cc/p/easy-irl-stream](https://stools.cc/p/easy-irl-stream)**.
 
-
-## AI-Powered Development
-
-This project was built with the support of **Anthropic Claude Opus 4.6**. We embrace AI-assisted development — this is an AI-friendly project. The future is now.
-
 ## License
 
 This project is licensed under the [GNU General Public License v2.0](LICENSE).

src/help-dialog.cpp

@@ -56,6 +56,8 @@ struct HelpStrings {
 	const char *srtla_step4;
 	const char *faq_q7;
 	const char *faq_a7;
+	const char *faq_q8;
+	const char *faq_a8;
 };
 
 static const HelpStrings LANG_DE = {
@@ -135,6 +137,11 @@ static const HelpStrings LANG_DE = {
 	"der die Pakete entgegennimmt und an den internen SRT-Server weiterleitet.<br>"
 	"<b>Standard-Ports:</b> SRTLA = UDP <code>5000</code>, SRT = UDP <code>9000</code><br>"
 	"<b>Wichtig:</b> In Moblin den <b>SRTLA-Port</b> (5000) angeben, nicht den SRT-Port (9000)!",
+	"Was ist das Wasserzeichen im Video?",
+	"In der kostenlosen Version wird <i>Easy IRL Stream &ndash; stools.cc</i> "
+	"unten rechts im Bild eingeblendet. Als "
+	"<a href='https://www.patreon.com/checkout/stoolscc?rid=27957669'>Patreon-Unterst&uuml;tzer</a> "
+	"wird das Wasserzeichen automatisch entfernt.",
 };
 
 static const HelpStrings LANG_EN = {
@@ -212,6 +219,11 @@ static const HelpStrings LANG_EN = {
 	"receives the packets and forwards them to the internal SRT server.<br>"
 	"<b>Default ports:</b> SRTLA = UDP <code>5000</code>, SRT = UDP <code>9000</code><br>"
 	"<b>Important:</b> In Moblin, enter the <b>SRTLA port</b> (5000), not the SRT port (9000)!",
+	"What is the watermark in the video?",
+	"The free version shows <i>Easy IRL Stream &ndash; stools.cc</i> "
+	"in the bottom-right corner of the video. "
+	"<a href='https://www.patreon.com/checkout/stoolscc?rid=27957669'>Patreon supporters</a> "
+	"get the watermark removed automatically.",
 };
 
 static QString build_html(const char *local_ip, const char *external_ip,
@@ -307,6 +319,7 @@ static QString build_html(const char *local_ip, const char *external_ip,
 	       + QString("<div class='q'>%1</div><div class='a'>%2</div>").arg(L.faq_q5).arg(L.faq_a5)
 	       + QString("<div class='q'>%1</div><div class='a'>%2</div>").arg(L.faq_q6).arg(L.faq_a6)
 	       + QString("<div class='q'>%1</div><div class='a'>%2</div>").arg(L.faq_q7).arg(L.faq_a7)
+	       + QString("<div class='q'>%1</div><div class='a'>%2</div>").arg(L.faq_q8).arg(L.faq_a8)
 
 	       + "</body></html>";
 }
@@ -388,3 +401,98 @@ extern "C" void update_dialog_show(const char *new_version, const char *locale)
 		open_url(url);
 	}
 }
+
+extern "C" void forced_update_show(const char *new_version, const char *locale)
+{
+	bool is_de = locale && (strncmp(locale, "de", 2) == 0);
+
+	QWidget *parent = (QWidget *)obs_frontend_get_main_window();
+
+	QString title = is_de ? "Update erforderlich"
+			      : "Update Required";
+
+	QString text = is_de
+		? QString::fromUtf8(
+			  "Easy IRL Stream v%1 ist verf\xc3\xbc""gbar.\n\n"
+			  "Bitte aktualisiere das Plugin, um es weiter "
+			  "nutzen zu k\xc3\xb6""nnen.\n\n"
+			  "Die Download-Seite wird jetzt ge\xc3\xb6""ffnet.")
+			  .arg(new_version)
+		: QString("Easy IRL Stream v%1 is available.\n\n"
+			  "Please update the plugin to continue using it.\n\n"
+			  "The download page will now open.")
+			  .arg(new_version);
+
+	QMessageBox::warning(parent, title, text, QMessageBox::Ok);
+
+	char url[256];
+	snprintf(url, sizeof(url), "%s%s%s",
+		 obf_https_prefix(), obf_stools_host(),
+		 obf_dash_downloads_path());
+	open_url(url);
+}
+
+extern "C" void ssl_error_dialog_show(const char *detail, const char *locale)
+{
+	bool is_de = locale && (strncmp(locale, "de", 2) == 0);
+
+	QWidget *parent = (QWidget *)obs_frontend_get_main_window();
+
+	QString title = is_de ? "Verbindungsfehler"
+			      : "Connection Error";
+
+	QString err = detail && detail[0] ? QString(detail) : QString("SSL connect error");
+	bool is_sec_e = err.contains("SEC_E_INVALID_TOKEN");
+
+	QString hint_de = is_sec_e
+		? QString::fromUtf8(
+			  "Dein Antivirus-Programm f\xc3\xa4""ngt HTTPS-Verbindungen ab "
+			  "und st\xc3\xb6""rt den TLS-Handshake.\n\n"
+			  "So behebst du das Problem:\n"
+			  "1. \xc3\x96""ffne dein Antivirus-Programm (z.B. Panda Dome, "
+			  "Kaspersky, Avast, ESET, Bitdefender)\n"
+			  "2. Gehe zu Einstellungen \xe2\x86\x92 Schutz / Webschutz\n"
+			  "3. Deaktiviere \"HTTPS-Scanning\" / \"SSL-Inspektion\" / "
+			  "\"Webschutz\" / \"Safe Browsing\"\n"
+			  "4. Oder f\xc3\xbc""ge stools.cc als Ausnahme hinzu\n"
+			  "5. Starte OBS neu")
+		: QString::fromUtf8(
+			  "M\xc3\xb6""gliche Ursachen:\n"
+			  "\xe2\x80\xa2 Antivirus-Software blockiert die Verbindung "
+			  "(HTTPS-Scanning / SSL-Inspektion deaktivieren)\n"
+			  "\xe2\x80\xa2 Firewall oder Proxy blockiert stools.cc\n"
+			  "\xe2\x80\xa2 VPN-Verbindung aktiv");
+
+	QString hint_en = is_sec_e
+		? QString(
+			  "Your antivirus software is intercepting HTTPS connections "
+			  "and breaking the TLS handshake.\n\n"
+			  "How to fix this:\n"
+			  "1. Open your antivirus program (e.g. Panda Dome, "
+			  "Kaspersky, Avast, ESET, Bitdefender)\n"
+			  "2. Go to Settings \xe2\x86\x92 Protection / Web Protection\n"
+			  "3. Disable \"HTTPS Scanning\" / \"SSL Inspection\" / "
+			  "\"Web Protection\" / \"Safe Browsing\"\n"
+			  "4. Or add stools.cc as an exception\n"
+			  "5. Restart OBS")
+		: QString(
+			  "Possible causes:\n"
+			  "\xe2\x80\xa2 Antivirus software blocking the connection "
+			  "(disable HTTPS scanning / SSL inspection)\n"
+			  "\xe2\x80\xa2 Firewall or proxy blocking stools.cc\n"
+			  "\xe2\x80\xa2 VPN connection active");
+
+	QString text = is_de
+		? QString::fromUtf8(
+			  "Easy IRL Stream konnte keine sichere Verbindung "
+			  "zu stools.cc herstellen.\n\n%1\n\n"
+			  "Fehler: %2")
+			  .arg(hint_de, err)
+		: QString(
+			  "Easy IRL Stream could not establish a secure "
+			  "connection to stools.cc.\n\n%1\n\n"
+			  "Error: %2")
+			  .arg(hint_en, err);
+
+	QMessageBox::warning(parent, title, text, QMessageBox::Ok);
+}

src/help-dialog.hpp

@@ -8,6 +8,8 @@ void help_dialog_show(const char *local_ip, const char *external_ip,
 		      const char *version, const char *locale);
 
 void update_dialog_show(const char *new_version, const char *locale);
+void forced_update_show(const char *new_version, const char *locale);
+void ssl_error_dialog_show(const char *detail, const char *locale);
 
 #ifdef __cplusplus
 }

src/irl-source.c

@@ -115,6 +115,7 @@ static void *irl_source_create(obs_data_t *settings, obs_source_t *source)
 	data->video_stream_idx = -1;
 	data->audio_stream_idx = -1;
 	data->active = true;
+	data->show_watermark = true;
 
 	pthread_mutex_init(&data->mutex, NULL);
 

src/irl-source.h

@@ -115,6 +115,9 @@ struct irl_source_data {
 	char *webhook_url;
 	char *custom_command;
 
+	/* Watermark (non-patreon) */
+	bool show_watermark;
+
 	/* Decoder debug counters (per-source) */
 	int dec_vid_pkt_count;
 	int dec_vid_frame_count;

src/media-decoder.c

@@ -1,4 +1,5 @@
 #include "media-decoder.h"
+#include "watermark.h"
 
 bool decoder_open(struct irl_source_data *data)
 {
@@ -173,6 +174,10 @@ static void output_video_frame(struct irl_source_data *data, AVFrame *frame)
 			     obs_fmt, full_range);
 		}
 
+		if (data->show_watermark &&
+		    av_frame_make_writable(frame) >= 0)
+			watermark_draw(frame);
+
 		enum video_colorspace cs = (h >= 720) ? VIDEO_CS_709
 						      : VIDEO_CS_601;
 
@@ -228,6 +233,18 @@ static void output_video_frame(struct irl_source_data *data, AVFrame *frame)
 		  frame->linesize, 0, h, data->video_dst_data,
 		  data->video_dst_linesize);
 
+	if (data->show_watermark) {
+		AVFrame tmp = {0};
+		tmp.data[0] = data->video_dst_data[0];
+		tmp.data[1] = data->video_dst_data[1];
+		tmp.linesize[0] = data->video_dst_linesize[0];
+		tmp.linesize[1] = data->video_dst_linesize[1];
+		tmp.width = w;
+		tmp.height = h;
+		tmp.format = AV_PIX_FMT_NV12;
+		watermark_draw(&tmp);
+	}
+
 	enum video_colorspace cs = (h >= 720) ? VIDEO_CS_709 : VIDEO_CS_601;
 
 	struct obs_source_frame obs_frame = {0};

src/plugin-main.c

@@ -260,6 +260,9 @@ static void *ip_detect_thread(void *arg)
 
 /* ---- Update check ---- */
 
+static volatile bool g_update_required = false;
+static char g_remote_version[64] = "";
+
 struct update_mem_buf {
 	char *data;
 	size_t size;
@@ -296,18 +299,46 @@ struct update_ctx {
 #include "help-dialog.hpp"
 #include "stats-dialog.hpp"
 
-static void task_show_update_dialog(void *param)
+static int curl_debug_cb(CURL *handle, curl_infotype type, char *data,
+			 size_t size, void *userptr)
 {
-	struct update_ctx *ctx = param;
+	(void)handle;
-	update_dialog_show(ctx->version, obs_get_locale());
+	(void)userptr;
-	free(ctx);
+
+	const char *prefix;
+	switch (type) {
+	case CURLINFO_TEXT:
+		prefix = "* ";
+		break;
+	case CURLINFO_SSL_DATA_IN:
+	case CURLINFO_SSL_DATA_OUT:
+		return 0;
+	case CURLINFO_HEADER_IN:
+		prefix = "< ";
+		break;
+	case CURLINFO_HEADER_OUT:
+		prefix = "> ";
+		break;
+	case CURLINFO_DATA_IN:
+	case CURLINFO_DATA_OUT:
+		return 0;
+	default:
+		return 0;
+	}
+
+	char buf[1024];
+	size_t len = size < sizeof(buf) - 1 ? size : sizeof(buf) - 1;
+	memcpy(buf, data, len);
+	while (len > 0 && (buf[len - 1] == '\n' || buf[len - 1] == '\r'))
+		len--;
+	buf[len] = '\0';
+
+	blog(LOG_INFO, "[%s] curl: %s%s", PLUGIN_NAME, prefix, buf);
+	return 0;
 }
 
-static void *update_check_thread(void *arg)
+static bool check_update_blocking(void)
 {
-	UNUSED_PARAMETER(arg);
-	os_sleep_ms(5000);
-
 	char url[256];
 	snprintf(url, sizeof(url), "%s%s%s",
 		 obf_https_prefix(), obf_stools_host(),
@@ -317,54 +348,69 @@ static void *update_check_thread(void *arg)
 	snprintf(ua, sizeof(ua), "%s%s", obf_ua_prefix(), PLUGIN_VERSION);
 
 	CURL *curl = curl_easy_init();
-	if (!curl) return NULL;
+	if (!curl) return false;
 
 	struct update_mem_buf buf = {NULL, 0};
+	char errbuf[CURL_ERROR_SIZE] = "";
+
 	curl_easy_setopt(curl, CURLOPT_URL, url);
 	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, update_write_cb);
 	curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buf);
-	curl_easy_setopt(curl, CURLOPT_TIMEOUT, 10L);
+	curl_easy_setopt(curl, CURLOPT_TIMEOUT, 5L);
+	curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 3L);
 	curl_easy_setopt(curl, CURLOPT_USERAGENT, ua);
+	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+#ifdef _WIN32
+	curl_easy_setopt(curl, CURLOPT_SSLVERSION,
+			 CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_TLSv1_2);
+	curl_easy_setopt(curl, CURLOPT_SSL_OPTIONS, (long)CURLSSLOPT_NO_REVOKE);
+	curl_easy_setopt(curl, CURLOPT_HTTP_VERSION,
+			 (long)CURL_HTTP_VERSION_1_1);
+	curl_easy_setopt(curl, CURLOPT_SSL_ENABLE_ALPN, 0L);
+	curl_easy_setopt(curl, CURLOPT_IPRESOLVE, (long)CURL_IPRESOLVE_V4);
+#endif
+	curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+	curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, curl_debug_cb);
+	curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errbuf);
 
 	CURLcode res = curl_easy_perform(curl);
 	long http_code = 0;
 	curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);
 	curl_easy_cleanup(curl);
 
+	if (res != CURLE_OK) {
+		blog(LOG_WARNING, "[%s] Update check failed: %s (%s)",
+		     PLUGIN_NAME, curl_easy_strerror(res),
+		     errbuf[0] ? errbuf : "no details");
+	}
+
 	if (res != CURLE_OK || http_code != 200 || !buf.data) {
 		free(buf.data);
-		return NULL;
+		return false;
 	}
 
-	/* Parse {"version":"x.y.z"} */
 	const char *vkey = strstr(buf.data, "\"version\"");
-	if (!vkey) { free(buf.data); return NULL; }
+	if (!vkey) { free(buf.data); return false; }
 	const char *vstart = strchr(vkey + 9, '"');
-	if (!vstart) { free(buf.data); return NULL; }
+	if (!vstart) { free(buf.data); return false; }
 	vstart++;
 	const char *vend = strchr(vstart, '"');
-	if (!vend || vend - vstart > 60) { free(buf.data); return NULL; }
+	if (!vend || vend - vstart > 60) { free(buf.data); return false; }
 
-	char remote_ver[64];
 	size_t vlen = (size_t)(vend - vstart);
-	memcpy(remote_ver, vstart, vlen);
+	memcpy(g_remote_version, vstart, vlen);
-	remote_ver[vlen] = '\0';
+	g_remote_version[vlen] = '\0';
 	free(buf.data);
 
-	if (compare_versions(remote_ver, PLUGIN_VERSION) > 0) {
+	return compare_versions(g_remote_version, PLUGIN_VERSION) > 0;
-		blog(LOG_DEBUG, "[%s] New version available: %s (current: %s)",
+}
-		     PLUGIN_NAME, remote_ver, PLUGIN_VERSION);
 
-		struct update_ctx *ctx = malloc(sizeof(*ctx));
+static void task_show_forced_update(void *param)
-		if (ctx) {
+{
-			snprintf(ctx->version, sizeof(ctx->version), "%s",
+	struct update_ctx *ctx = param;
-				 remote_ver);
+	forced_update_show(ctx->version, obs_get_locale());
-			obs_queue_task(OBS_TASK_UI, task_show_update_dialog,
+	free(ctx);
-				       ctx, false);
-		}
-	}
-
-	return NULL;
 }
 
 /* ---- Tools menu ---- */
@@ -388,22 +434,46 @@ bool obs_module_load(void)
 {
 	curl_global_init(CURL_GLOBAL_DEFAULT);
 
+	curl_version_info_data *vi = curl_version_info(CURLVERSION_NOW);
+	if (vi) {
+		blog(LOG_INFO,
+		     "[%s] curl %s, SSL: %s, features: 0x%x",
+		     PLUGIN_NAME, vi->version,
+		     vi->ssl_version ? vi->ssl_version : "none",
+		     (unsigned)vi->features);
+	}
+
+	if (check_update_blocking()) {
+		g_update_required = true;
+		blog(LOG_WARNING,
+		     "[%s] Update required (v%s available), plugin disabled",
+		     PLUGIN_NAME, g_remote_version);
+		return true;
+	}
+
 	obs_register_source(&irl_source_info);
 
 	g_ip_thread_active = true;
 	if (pthread_create(&g_ip_thread, NULL, ip_detect_thread, NULL) != 0)
 		g_ip_thread_active = false;
 
-	pthread_t update_thread;
-	if (pthread_create(&update_thread, NULL, update_check_thread, NULL) == 0)
-		pthread_detach(update_thread);
-
 	blog(LOG_INFO, "[%s] Plugin loaded (v%s)", PLUGIN_NAME, PLUGIN_VERSION);
 	return true;
 }
 
 void obs_module_post_load(void)
 {
+	if (g_update_required) {
+		struct update_ctx *ctx = malloc(sizeof(*ctx));
+		if (ctx) {
+			snprintf(ctx->version, sizeof(ctx->version), "%s",
+				 g_remote_version);
+			obs_queue_task(OBS_TASK_UI, task_show_forced_update,
+				       ctx, false);
+		}
+		return;
+	}
+
 	obs_frontend_add_tools_menu_item(tr_tools_menu_help(),
 					 tools_menu_cb, NULL);
 	obs_frontend_add_tools_menu_item(tr_tools_menu_stats(),

src/remote-settings.c

@@ -14,6 +14,94 @@
 
 #include <curl/curl.h>
 
+#include "help-dialog.hpp"
+
+/* ---- SSL error dialog (shown once per session) ---- */
+
+static volatile bool g_ssl_error_shown = false;
+
+struct ssl_error_ctx {
+	char detail[CURL_ERROR_SIZE];
+};
+
+static void task_show_ssl_error(void *param)
+{
+	struct ssl_error_ctx *ctx = param;
+	ssl_error_dialog_show(ctx->detail, obs_get_locale());
+	free(ctx);
+}
+
+static void maybe_show_ssl_error(CURLcode res, const char *errbuf)
+{
+	if (res != CURLE_SSL_CONNECT_ERROR || g_ssl_error_shown)
+		return;
+
+	g_ssl_error_shown = true;
+	struct ssl_error_ctx *ctx = malloc(sizeof(*ctx));
+	if (ctx) {
+		snprintf(ctx->detail, sizeof(ctx->detail), "%s",
+			 errbuf && errbuf[0] ? errbuf : "SSL connect error");
+		obs_queue_task(OBS_TASK_UI, task_show_ssl_error, ctx, false);
+	}
+}
+
+/* ---- cURL debug callback ---- */
+
+static int curl_debug_cb(CURL *handle, curl_infotype type, char *data,
+			 size_t size, void *userptr)
+{
+	(void)handle;
+	(void)userptr;
+
+	const char *prefix;
+	switch (type) {
+	case CURLINFO_TEXT:
+		prefix = "* ";
+		break;
+	case CURLINFO_SSL_DATA_IN:
+	case CURLINFO_SSL_DATA_OUT:
+		return 0;
+	case CURLINFO_HEADER_IN:
+		prefix = "< ";
+		break;
+	case CURLINFO_HEADER_OUT:
+		prefix = "> ";
+		break;
+	case CURLINFO_DATA_IN:
+	case CURLINFO_DATA_OUT:
+		return 0;
+	default:
+		return 0;
+	}
+
+	char buf[1024];
+	size_t len = size < sizeof(buf) - 1 ? size : sizeof(buf) - 1;
+	memcpy(buf, data, len);
+	while (len > 0 && (buf[len - 1] == '\n' || buf[len - 1] == '\r'))
+		len--;
+	buf[len] = '\0';
+
+	blog(LOG_INFO, "[%s] curl: %s%s", PLUGIN_NAME, prefix, buf);
+	return 0;
+}
+
+static void curl_set_ssl_opts(CURL *curl)
+{
+	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+#ifdef _WIN32
+	curl_easy_setopt(curl, CURLOPT_SSLVERSION,
+			 CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_TLSv1_2);
+	curl_easy_setopt(curl, CURLOPT_SSL_OPTIONS, (long)CURLSSLOPT_NO_REVOKE);
+	curl_easy_setopt(curl, CURLOPT_HTTP_VERSION,
+			 (long)CURL_HTTP_VERSION_1_1);
+	curl_easy_setopt(curl, CURLOPT_SSL_ENABLE_ALPN, 0L);
+	curl_easy_setopt(curl, CURLOPT_IPRESOLVE, (long)CURL_IPRESOLVE_V4);
+#endif
+	curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+	curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, curl_debug_cb);
+}
+
 /* ---- cURL helpers ---- */
 
 struct mem_buf {
@@ -53,6 +141,7 @@ static char *api_get(const char *path, const char *token)
 	snprintf(ua, sizeof(ua), "%s%s", obf_ua_prefix(), PLUGIN_VERSION);
 
 	struct mem_buf buf = {NULL, 0};
+	char errbuf[CURL_ERROR_SIZE] = "";
 
 	curl_easy_setopt(curl, CURLOPT_URL, url);
 	curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
@@ -60,6 +149,8 @@ static char *api_get(const char *path, const char *token)
 	curl_easy_setopt(curl, CURLOPT_WRITEDATA, &buf);
 	curl_easy_setopt(curl, CURLOPT_TIMEOUT, 15L);
 	curl_easy_setopt(curl, CURLOPT_USERAGENT, ua);
+	curl_set_ssl_opts(curl);
+	curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errbuf);
 
 	CURLcode res = curl_easy_perform(curl);
 	long http_code = 0;
@@ -68,8 +159,10 @@ static char *api_get(const char *path, const char *token)
 	curl_easy_cleanup(curl);
 
 	if (res != CURLE_OK) {
-		blog(LOG_WARNING, "[%s] API GET %s failed: %s",
+		blog(LOG_WARNING, "[%s] API GET %s failed: %s (%s)",
-		     PLUGIN_NAME, path, curl_easy_strerror(res));
+		     PLUGIN_NAME, path, curl_easy_strerror(res),
+		     errbuf[0] ? errbuf : "no details");
+		maybe_show_ssl_error(res, errbuf);
 		free(buf.data);
 		return NULL;
 	}
@@ -102,11 +195,15 @@ static bool api_post(const char *path, const char *token, const char *json_body)
 	char ua[128];
 	snprintf(ua, sizeof(ua), "%s%s", obf_ua_prefix(), PLUGIN_VERSION);
 
+	char errbuf[CURL_ERROR_SIZE] = "";
+
 	curl_easy_setopt(curl, CURLOPT_URL, url);
 	curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
 	curl_easy_setopt(curl, CURLOPT_POSTFIELDS, json_body);
 	curl_easy_setopt(curl, CURLOPT_TIMEOUT, 15L);
 	curl_easy_setopt(curl, CURLOPT_USERAGENT, ua);
+	curl_set_ssl_opts(curl);
+	curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errbuf);
 
 	CURLcode res = curl_easy_perform(curl);
 	long http_code = 0;
@@ -115,8 +212,10 @@ static bool api_post(const char *path, const char *token, const char *json_body)
 	curl_easy_cleanup(curl);
 
 	if (res != CURLE_OK) {
-		blog(LOG_WARNING, "[%s] API POST %s failed: %s",
+		blog(LOG_WARNING, "[%s] API POST %s failed: %s (%s)",
-		     PLUGIN_NAME, path, curl_easy_strerror(res));
+		     PLUGIN_NAME, path, curl_easy_strerror(res),
+		     errbuf[0] ? errbuf : "no details");
+		maybe_show_ssl_error(res, errbuf);
 		return false;
 	}
 	if (http_code != 200) {
@@ -221,6 +320,8 @@ static void apply_remote_settings(struct irl_source_data *data, const char *json
 	data->srtla_enabled = json_get_bool(json, "srtlaEnabled", data->srtla_enabled);
 	data->srtla_port = json_get_int(json, "srtlaPort", data->srtla_port);
 
+	data->show_watermark = !json_get_bool(json, "patreon", false);
+
 	bfree(data->duckdns_domain);
 	data->duckdns_domain = json_get_string(json, "duckdnsDomain");
 

src/watermark.c

@@ -0,0 +1,171 @@
+#include "watermark.h"
+#include <string.h>
+
+#define WM_FONT_W 7
+#define WM_FONT_H 12
+#define WM_PAD_X  10
+#define WM_PAD_Y  3
+
+static const char wm_text[] = "Easy IRL Stream - stools.cc";
+
+/*
+ * Embedded 7x12 bitmap font.
+ * Each row is one byte; bits 7-1 = 7 pixels left to right.
+ * Only characters needed for wm_text are defined.
+ */
+struct wm_glyph {
+	char ch;
+	uint8_t rows[12];
+};
+
+static const struct wm_glyph wm_font[] = {
+	{' ', {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}},
+	{'-', {0x00,0x00,0x00,0x00,0x00,0x78,0x00,0x00,0x00,0x00,0x00,0x00}},
+	{'.', {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00}},
+	{'E', {0x00,0x00,0x7C,0x40,0x40,0x78,0x40,0x40,0x40,0x7C,0x00,0x00}},
+	{'I', {0x00,0x00,0x7C,0x10,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00}},
+	{'L', {0x00,0x00,0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x7C,0x00,0x00}},
+	{'R', {0x00,0x00,0x78,0x44,0x44,0x78,0x50,0x48,0x44,0x44,0x00,0x00}},
+	{'S', {0x00,0x00,0x38,0x44,0x40,0x38,0x04,0x04,0x44,0x38,0x00,0x00}},
+	{'a', {0x00,0x00,0x00,0x00,0x38,0x04,0x3C,0x44,0x44,0x3C,0x00,0x00}},
+	{'c', {0x00,0x00,0x00,0x00,0x38,0x44,0x40,0x40,0x44,0x38,0x00,0x00}},
+	{'e', {0x00,0x00,0x00,0x00,0x38,0x44,0x7C,0x40,0x40,0x38,0x00,0x00}},
+	{'l', {0x00,0x00,0x30,0x10,0x10,0x10,0x10,0x10,0x10,0x38,0x00,0x00}},
+	{'m', {0x00,0x00,0x00,0x00,0x6C,0x54,0x54,0x54,0x54,0x54,0x00,0x00}},
+	{'o', {0x00,0x00,0x00,0x00,0x38,0x44,0x44,0x44,0x44,0x38,0x00,0x00}},
+	{'r', {0x00,0x00,0x00,0x00,0x58,0x60,0x40,0x40,0x40,0x40,0x00,0x00}},
+	{'s', {0x00,0x00,0x00,0x00,0x38,0x40,0x38,0x04,0x44,0x38,0x00,0x00}},
+	{'t', {0x00,0x00,0x10,0x10,0x78,0x10,0x10,0x10,0x10,0x0C,0x00,0x00}},
+	{'y', {0x00,0x00,0x00,0x00,0x44,0x44,0x44,0x44,0x3C,0x04,0x78,0x00}},
+};
+
+#define WM_GLYPH_COUNT (sizeof(wm_font) / sizeof(wm_font[0]))
+
+static const uint8_t *wm_get_glyph(char c)
+{
+	for (int i = 0; i < (int)WM_GLYPH_COUNT; i++)
+		if (wm_font[i].ch == c)
+			return wm_font[i].rows;
+	return wm_font[0].rows;
+}
+
+static void stamp_y_plane(uint8_t *y, int stride, int w, int h)
+{
+	int text_len = (int)strlen(wm_text);
+	int text_w = text_len * WM_FONT_W;
+	int bar_w = text_w + WM_PAD_X * 2;
+	int bar_h = WM_FONT_H + WM_PAD_Y * 2;
+	int bar_x = w - bar_w;
+	int bar_y = h - bar_h;
+
+	if (bar_x < 0 || bar_y < 0)
+		return;
+
+	for (int r = bar_y; r < bar_y + bar_h && r < h; r++)
+		for (int c = bar_x; c < bar_x + bar_w && c < w; c++)
+			y[r * stride + c] >>= 2;
+
+	int tx = bar_x + WM_PAD_X;
+	int ty = bar_y + WM_PAD_Y;
+
+	for (int i = 0; i < text_len; i++) {
+		const uint8_t *glyph = wm_get_glyph(wm_text[i]);
+		int cx = tx + i * WM_FONT_W;
+
+		for (int r = 0; r < WM_FONT_H; r++) {
+			int py = ty + r;
+			if (py >= h)
+				break;
+			uint8_t bits = glyph[r];
+			for (int c = 0; c < WM_FONT_W; c++) {
+				int px = cx + c;
+				if (px >= w)
+					break;
+				if (bits & (0x80 >> c))
+					y[py * stride + px] = 220;
+			}
+		}
+	}
+}
+
+static void neutralize_chroma_420(uint8_t *u, int u_stride,
+				  uint8_t *v, int v_stride,
+				  int bar_x, int bar_y,
+				  int bar_w, int bar_h,
+				  int w, int h)
+{
+	int cx0 = bar_x / 2;
+	int cy0 = bar_y / 2;
+	int cx1 = (bar_x + bar_w + 1) / 2;
+	int cy1 = (bar_y + bar_h + 1) / 2;
+	int cw = w / 2;
+	int ch = h / 2;
+
+	for (int r = cy0; r < cy1 && r < ch; r++)
+		for (int c = cx0; c < cx1 && c < cw; c++) {
+			u[r * u_stride + c] = 128;
+			v[r * v_stride + c] = 128;
+		}
+}
+
+static void neutralize_chroma_nv12(uint8_t *uv, int uv_stride,
+				   int bar_x, int bar_y,
+				   int bar_w, int bar_h,
+				   int w, int h)
+{
+	int cx0 = bar_x / 2;
+	int cy0 = bar_y / 2;
+	int cx1 = (bar_x + bar_w + 1) / 2;
+	int cy1 = (bar_y + bar_h + 1) / 2;
+	int cw = w / 2;
+	int ch = h / 2;
+
+	for (int r = cy0; r < cy1 && r < ch; r++)
+		for (int c = cx0; c < cx1 && c < cw; c++) {
+			uv[r * uv_stride + c * 2] = 128;
+			uv[r * uv_stride + c * 2 + 1] = 128;
+		}
+}
+
+void watermark_draw(AVFrame *frame)
+{
+	int w = frame->width;
+	int h = frame->height;
+	enum AVPixelFormat fmt = (enum AVPixelFormat)frame->format;
+
+	int text_len = (int)strlen(wm_text);
+	int text_w = text_len * WM_FONT_W;
+	int bar_w = text_w + WM_PAD_X * 2;
+	int bar_h = WM_FONT_H + WM_PAD_Y * 2;
+	int bar_x = w - bar_w;
+	int bar_y = h - bar_h;
+
+	if (bar_x < 0 || bar_y < 0)
+		return;
+
+	switch (fmt) {
+	case AV_PIX_FMT_YUV420P:
+	case AV_PIX_FMT_YUVJ420P:
+		stamp_y_plane(frame->data[0], frame->linesize[0], w, h);
+		neutralize_chroma_420(frame->data[1], frame->linesize[1],
+				      frame->data[2], frame->linesize[2],
+				      bar_x, bar_y, bar_w, bar_h, w, h);
+		break;
+
+	case AV_PIX_FMT_NV12:
+		stamp_y_plane(frame->data[0], frame->linesize[0], w, h);
+		neutralize_chroma_nv12(frame->data[1], frame->linesize[1],
+				       bar_x, bar_y, bar_w, bar_h, w, h);
+		break;
+
+	case AV_PIX_FMT_YUV422P:
+	case AV_PIX_FMT_YUVJ422P:
+	case AV_PIX_FMT_YUV444P:
+	case AV_PIX_FMT_YUVJ444P:
+		stamp_y_plane(frame->data[0], frame->linesize[0], w, h);
+		break;
+
+	default:
+		break;
+	}
+}

src/watermark.h

@@ -0,0 +1,5 @@
+#pragma once
+
+#include <libavutil/frame.h>
+
+void watermark_draw(AVFrame *frame);

src/webhook.c

@@ -25,6 +25,43 @@ static size_t discard_response(void *ptr, size_t size, size_t nmemb,
 	return size * nmemb;
 }
 
+static int webhook_curl_debug_cb(CURL *handle, curl_infotype type, char *data,
+				size_t size, void *userptr)
+{
+	(void)handle;
+	(void)userptr;
+
+	const char *prefix;
+	switch (type) {
+	case CURLINFO_TEXT:
+		prefix = "* ";
+		break;
+	case CURLINFO_SSL_DATA_IN:
+	case CURLINFO_SSL_DATA_OUT:
+	case CURLINFO_DATA_IN:
+	case CURLINFO_DATA_OUT:
+		return 0;
+	case CURLINFO_HEADER_IN:
+		prefix = "< ";
+		break;
+	case CURLINFO_HEADER_OUT:
+		prefix = "> ";
+		break;
+	default:
+		return 0;
+	}
+
+	char buf[1024];
+	size_t len = size < sizeof(buf) - 1 ? size : sizeof(buf) - 1;
+	memcpy(buf, data, len);
+	while (len > 0 && (buf[len - 1] == '\n' || buf[len - 1] == '\r'))
+		len--;
+	buf[len] = '\0';
+
+	blog(LOG_INFO, "[Easy IRL Stream] curl: %s%s", prefix, buf);
+	return 0;
+}
+
 static void webhook_do_send(const char *url, const char *json_body)
 {
 	CURL *curl = curl_easy_init();
@@ -37,6 +74,8 @@ static void webhook_do_send(const char *url, const char *json_body)
 	struct curl_slist *headers = NULL;
 	headers = curl_slist_append(headers, "Content-Type: application/json");
 
+	char errbuf[CURL_ERROR_SIZE] = "";
+
 	curl_easy_setopt(curl, CURLOPT_URL, url);
 	curl_easy_setopt(curl, CURLOPT_POSTFIELDS, json_body);
 	curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
@@ -44,11 +83,26 @@ static void webhook_do_send(const char *url, const char *json_body)
 	curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 5L);
 	curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, discard_response);
 	curl_easy_setopt(curl, CURLOPT_USERAGENT, "easy-irl-stream-webhook/1.0");
+	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+	curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+#ifdef _WIN32
+	curl_easy_setopt(curl, CURLOPT_SSLVERSION,
+			 CURL_SSLVERSION_TLSv1_2 | CURL_SSLVERSION_MAX_TLSv1_2);
+	curl_easy_setopt(curl, CURLOPT_SSL_OPTIONS, (long)CURLSSLOPT_NO_REVOKE);
+	curl_easy_setopt(curl, CURLOPT_HTTP_VERSION,
+			 (long)CURL_HTTP_VERSION_1_1);
+	curl_easy_setopt(curl, CURLOPT_SSL_ENABLE_ALPN, 0L);
+	curl_easy_setopt(curl, CURLOPT_IPRESOLVE, (long)CURL_IPRESOLVE_V4);
+#endif
+	curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
+	curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, webhook_curl_debug_cb);
+	curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, errbuf);
 
 	CURLcode res = curl_easy_perform(curl);
 	if (res != CURLE_OK) {
-		blog(LOG_WARNING, "[%s] Webhook failed (%s): %s",
+		blog(LOG_WARNING, "[%s] Webhook failed (%s): %s (%s)",
-		     "Easy IRL Stream", url, curl_easy_strerror(res));
+		     "Easy IRL Stream", url, curl_easy_strerror(res),
+		     errbuf[0] ? errbuf : "no details");
 	} else {
 		long http_code = 0;
 		curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &http_code);