Feature Request - Alpine build with gltransition

[SiviP-Glossai]

References:
https://github.com/transitive-bullshit/ffmpeg-gl-transition
https://github.com/clofus/ffmpeg-gl

@jrottenberg FYI

[SiviP-Glossai]

I was able to get a working build with gltransition with one issue - size is not optimal

I would be glad if you could take a look and push this one forward

Here is the git path file:

From a435378b77d94042c476561e63cc9dda60cb9d8a Mon Sep 17 00:00:00 2001
From: SiviP-Glossai <sivan.schick@glossai.co>
Date: Sun, 10 Apr 2022 09:22:18 +0300
Subject: [PATCH] gltransition compiling but is not optimal in size.

---
 docker-images/4.4/alpine313/Dockerfile | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/docker-images/4.4/alpine313/Dockerfile b/docker-images/4.4/alpine313/Dockerfile
index 41e7602..edd8373 100644
--- a/docker-images/4.4/alpine313/Dockerfile
+++ b/docker-images/4.4/alpine313/Dockerfile
@@ -512,7 +512,15 @@ RUN  \
         ./configure     --disable-debug  --disable-doc    --disable-ffplay   --enable-shared --enable-gpl  --extra-libs=-ldl && \
         make ;  make install
 
-
+## gltransitions
+RUN \
+        DIR=/tmp/gltransitions && \
+        mkdir -p ${DIR} && \
+        cd ${DIR} && \
+        git clone https://github.com/transitive-bullshit/ffmpeg-gl-transition.git && \
+        apk add --no-cache --update glew glew-dev glfw-dev mesa-dev && \
+        grep -v "define GL_TRANSITION_USING_EGL" ${DIR}/ffmpeg-gl-transition/vf_gltransition.c > /tmp/ffmpeg/libavfilter/vf_gltransition.c && \
+        cd /tmp/ffmpeg && git apply ${DIR}/ffmpeg-gl-transition/ffmpeg.diff
 
 
 
@@ -525,6 +533,8 @@ RUN  \
         --disable-ffplay \
         --enable-avresample \
         --enable-fontconfig \
+        --enable-filter=gltransition \
+        --enable-opengl \
         --enable-gpl \
         --enable-libaom \
         --enable-libaribb24 \
@@ -559,6 +569,8 @@ RUN  \
         --extra-ldflags="-L${PREFIX}/lib" \
         --extra-libs=-ldl \
         --extra-libs=-lpthread \
+        --extra-libs=-lGLEW \
+        --extra-libs=-lglfw \
         --prefix="${PREFIX}" && \
         make clean && \
         make && \
@@ -589,6 +601,7 @@ LABEL       org.opencontainers.image.authors="julien@rottenberg.info" \
             org.opencontainers.image.source=https://github.com/jrottenberg/ffmpeg
 
 ENV         LD_LIBRARY_PATH=/usr/local/lib:/usr/local/lib64
+RUN         apk add --no-cache --update xvfb glew glew-dev glfw-dev mesa-dev
 
 CMD         ["--help"]
 ENTRYPOINT  ["ffmpeg"]
-- 
2.36.1.windows.1

[jrottenberg]

Hello !

Sorry for the lag.

It does look interesting, but I'm worried about the size of the resulting image, I'll try locally and compare on alpine and other base.

[SiviP-Glossai]

Thanks for looking at it.
If size is an issue can we add it as a separate flavour? And not as part of alpine?