avfilter: Constify all AVFilters

[ffmpeg] / libavfilter / vf_hwdownload.c

diff --git a/libavfilter/vf_hwdownload.c b/libavfilter/vf_hwdownload.c
index 33af30cf4025e70de5d5a8b7a5c70acf1079ef8d..4a8fed0688d1d176acf2c3876de5bbb8e71e177a 100644 (file)
--- a/libavfilter/vf_hwdownload.c
+++ b/libavfilter/vf_hwdownload.c
@@ -37,26 +37,13 @@ typedef struct HWDownloadContext {
 
 static int hwdownload_query_formats(AVFilterContext *avctx)
 {
-    AVFilterFormats  *infmts = NULL;
-    AVFilterFormats *outfmts = NULL;
-    const AVPixFmtDescriptor *desc;
+    AVFilterFormats *fmts;
     int err;
 
-    for (desc = av_pix_fmt_desc_next(NULL); desc;
-         desc = av_pix_fmt_desc_next(desc)) {
-        if (desc->flags & AV_PIX_FMT_FLAG_HWACCEL)
-            err = ff_add_format(&infmts,  av_pix_fmt_desc_get_id(desc));
-        else
-            err = ff_add_format(&outfmts, av_pix_fmt_desc_get_id(desc));
-        if (err) {
-            ff_formats_unref(&infmts);
-            ff_formats_unref(&outfmts);
-            return err;
-        }
-    }
-
-    if ((err = ff_formats_ref(infmts,  &avctx->inputs[0]->out_formats)) < 0 ||
-        (err = ff_formats_ref(outfmts, &avctx->outputs[0]->in_formats)) < 0)
+    if ((err = ff_formats_pixdesc_filter(&fmts, AV_PIX_FMT_FLAG_HWACCEL, 0)) ||
+        (err = ff_formats_ref(fmts, &avctx->inputs[0]->outcfg.formats))      ||
+        (err = ff_formats_pixdesc_filter(&fmts, 0, AV_PIX_FMT_FLAG_HWACCEL)) ||
+        (err = ff_formats_ref(fmts, &avctx->outputs[0]->incfg.formats)))
         return err;
 
     return 0;
@@ -205,7 +192,7 @@ static const AVFilterPad hwdownload_outputs[] = {
     { NULL }
 };
 
-AVFilter ff_vf_hwdownload = {
+const AVFilter ff_vf_hwdownload = {
     .name          = "hwdownload",
     .description   = NULL_IF_CONFIG_SMALL("Download a hardware frame to a normal frame"),
     .uninit        = hwdownload_uninit,