avfilter/vf_mix: use ff_formats_pixdesc_filter()

diff --git a/libavfilter/vf_mix.c b/libavfilter/vf_mix.c
index bdb67d8e5ac9c49d0011079899ec74929285f9b2..1ae73124f6d19ac5aa08079c362641cc71262567 100644 (file)
--- a/libavfilter/vf_mix.c
+++ b/libavfilter/vf_mix.c
@@ -55,19 +55,16 @@ typedef struct MixContext {
 
 static int query_formats(AVFilterContext *ctx)
 {
-    AVFilterFormats *pix_fmts = NULL;
-    int fmt, ret;
-
-    for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) {
-        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
-        if (!(desc->flags & AV_PIX_FMT_FLAG_PAL ||
-              desc->flags & AV_PIX_FMT_FLAG_HWACCEL ||
-              desc->flags & AV_PIX_FMT_FLAG_BITSTREAM) &&
-            (ret = ff_add_format(&pix_fmts, fmt)) < 0)
-            return ret;
-    }
-
-    return ff_set_common_formats(ctx, pix_fmts);
+    AVFilterFormats *formats = NULL;
+    int ret;
+
+    ret = ff_formats_pixdesc_filter(&formats, 0,
+                                    AV_PIX_FMT_FLAG_BITSTREAM |
+                                    AV_PIX_FMT_FLAG_PAL |
+                                    AV_PIX_FMT_FLAG_HWACCEL);
+    if (ret < 0)
+        return ret;
+    return ff_set_common_formats(ctx, formats);
 }
 
 static av_cold int init(AVFilterContext *ctx)