avformat: Constify all muxer/demuxers

[ffmpeg] / libavformat / apngenc.c

diff --git a/libavformat/apngenc.c b/libavformat/apngenc.c
index 643bf733003a8b4167ec1406e2b63ae23006a192..c97c475274e9aee0e615fcd99fc4ab628017d224 100644 (file)
--- a/libavformat/apngenc.c
+++ b/libavformat/apngenc.c
@@ -294,7 +294,7 @@ static const AVClass apng_muxer_class = {
     .option     = options,
 };
 
-AVOutputFormat ff_apng_muxer = {
+const AVOutputFormat ff_apng_muxer = {
     .name           = "apng",
     .long_name      = NULL_IF_CONFIG_SMALL("Animated Portable Network Graphics"),
     .mime_type      = "image/png",