lavfi: add const/static const to pix_fmts arrays.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

libavfilter/vf_blackdetect.c

@@ -64,7 +64,7 @@ AVFILTER_DEFINE_CLASS(blackdetect);
 #define YUVJ_FORMATS \
     AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P
 
-static enum AVPixelFormat yuvj_formats[] = {
+static const enum AVPixelFormat yuvj_formats[] = {
     YUVJ_FORMATS, AV_PIX_FMT_NONE
 };
 

libavfilter/vf_lenscorrection.c

@@ -98,7 +98,7 @@ static int filter_slice(AVFilterContext *ctx, void *arg, int job, int nb_jobs)
 
 static int query_formats(AVFilterContext *ctx)
 {
-    static enum AVPixelFormat pix_fmts[] = {
+    static const enum AVPixelFormat pix_fmts[] = {
         AV_PIX_FMT_YUV410P,
         AV_PIX_FMT_YUV444P,  AV_PIX_FMT_YUVJ444P,
         AV_PIX_FMT_YUV420P,  AV_PIX_FMT_YUVJ420P,

libavfilter/vf_signalstats.c

@@ -94,7 +94,7 @@ static av_cold void uninit(AVFilterContext *ctx)
 static int query_formats(AVFilterContext *ctx)
 {
     // TODO: add more
-    enum AVPixelFormat pix_fmts[] = {
+    static const enum AVPixelFormat pix_fmts[] = {
         AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P,
         AV_PIX_FMT_NONE
     };

libavfilter/vf_tinterlace.c

@@ -80,7 +80,7 @@ AVFILTER_DEFINE_CLASS(tinterlace);
 #define FULL_SCALE_YUVJ_FORMATS \
     AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P
 
-static enum AVPixelFormat full_scale_yuvj_pix_fmts[] = {
+static const enum AVPixelFormat full_scale_yuvj_pix_fmts[] = {
     FULL_SCALE_YUVJ_FORMATS, AV_PIX_FMT_NONE
 };