From 4b328a236c5ed431509afaa1c3ff00da9c93b745 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Mon, 28 Mar 2022 17:39:25 +0400
Subject: [PATCH] Fix NV12 video rendering in Picture-in-Picture panel.

---
 Telegram/SourceFiles/media/view/media_view_overlay_opengl.cpp | 4 ++++
 Telegram/SourceFiles/media/view/media_view_pip_opengl.cpp     | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/Telegram/SourceFiles/media/view/media_view_overlay_opengl.cpp b/Telegram/SourceFiles/media/view/media_view_overlay_opengl.cpp
index 6a5d4b44c7..584de9d14d 100644
--- a/Telegram/SourceFiles/media/view/media_view_overlay_opengl.cpp
+++ b/Telegram/SourceFiles/media/view/media_view_overlay_opengl.cpp
@@ -241,6 +241,10 @@ void OverlayWidget::RendererGL::paintTransformedVideoFrame(
 			_chromaSize,
 			yuv->u.stride / (nv12 ? 2 : 1),
 			yuv->u.data);
+		if (nv12) {
+			_chromaSize = yuv->chromaSize;
+			_f->glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+		}
 	}
 	if (!nv12) {
 		_f->glActiveTexture(GL_TEXTURE2);
diff --git a/Telegram/SourceFiles/media/view/media_view_pip_opengl.cpp b/Telegram/SourceFiles/media/view/media_view_pip_opengl.cpp
index 5c41cfa56e..e0ba0914d8 100644
--- a/Telegram/SourceFiles/media/view/media_view_pip_opengl.cpp
+++ b/Telegram/SourceFiles/media/view/media_view_pip_opengl.cpp
@@ -334,6 +334,10 @@ void Pip::RendererGL::paintTransformedVideoFrame(
 			_chromaSize,
 			yuv->u.stride / (nv12 ? 2 : 1),
 			yuv->u.data);
+		if (nv12) {
+			_chromaSize = yuv->chromaSize;
+			_f->glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
+		}
 	}
 	if (!nv12) {
 		_f->glActiveTexture(GL_TEXTURE2);