From 8aa2f56717406e0aa9ad8cbc8ec4db98d7faa9de Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Wed, 22 Dec 2021 10:55:29 +0000
Subject: [PATCH] Specify exact FFmpeg revision.

---
 Telegram/build/docker/centos_env/Dockerfile | 8 ++++++--
 Telegram/build/prepare/prepare.py           | 2 +-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/Telegram/build/docker/centos_env/Dockerfile b/Telegram/build/docker/centos_env/Dockerfile
index 76a163b26..0ccf715e9 100644
--- a/Telegram/build/docker/centos_env/Dockerfile
+++ b/Telegram/build/docker/centos_env/Dockerfile
@@ -457,9 +457,13 @@ COPY --from=drm ${LibrariesPath}/drm-cache /
 COPY --from=libva ${LibrariesPath}/libva-cache /
 COPY --from=libvdpau ${LibrariesPath}/libvdpau-cache /
 
-RUN git clone -b release/4.4 --depth=1 $GIT/FFmpeg/FFmpeg.git ffmpeg
-
+RUN mkdir ffmpeg
 WORKDIR ffmpeg
+RUN git init
+RUN git remote add origin $GIT/FFmpeg/FFmpeg.git
+RUN git fetch --depth=1 origin cc33e73618a981de7fd96385ecb34719de031f16
+RUN git reset --hard FETCH_HEAD
+
 RUN ./configure \
 	--extra-cflags="-DCONFIG_SAFE_BITSTREAM_READER=1 $HFLAGS" \
 	--extra-cxxflags="-DCONFIG_SAFE_BITSTREAM_READER=1 $HFLAGS" \
diff --git a/Telegram/build/prepare/prepare.py b/Telegram/build/prepare/prepare.py
index c37f50152..343d64ab1 100644
--- a/Telegram/build/prepare/prepare.py
+++ b/Telegram/build/prepare/prepare.py
@@ -625,7 +625,7 @@ mac:
 stage('ffmpeg', """
     git clone https://github.com/FFmpeg/FFmpeg.git ffmpeg
     cd ffmpeg
-    git checkout release/4.4
+    git checkout cc33e73618
 win:
     SET PATH_BACKUP_=%PATH%
     SET PATH=%ROOT_DIR%\\ThirdParty\\msys64\\usr\\bin;%PATH%