X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fpngenc.c;h=e9e8bc278208773485d0344348f56ccda284efdd;hb=f02103036526a8740ccd23474155906929f26303;hp=a6233075c10d70c16c543d017a613c52edd42e6b;hpb=e5fe75ae2bd47b7f6aa14c87f4d7c6ec4262c2cb;p=ffmpeg

diff --git a/libavcodec/pngenc.c b/libavcodec/pngenc.c
index a6233075c10..e9e8bc27820 100644
--- a/libavcodec/pngenc.c
+++ b/libavcodec/pngenc.c
@@ -999,9 +999,15 @@ FF_ENABLE_DEPRECATION_WARNINGS
 
     ff_huffyuvencdsp_init(&s->hdsp);
 
-    s->filter_type = av_clip(avctx->prediction_method,
-                             PNG_FILTER_VALUE_NONE,
-                             PNG_FILTER_VALUE_MIXED);
+#if FF_API_PRIVATE_OPT
+FF_DISABLE_DEPRECATION_WARNINGS
+    if (avctx->prediction_method)
+        s->filter_type = av_clip(avctx->prediction_method,
+                                 PNG_FILTER_VALUE_NONE,
+                                 PNG_FILTER_VALUE_MIXED);
+FF_ENABLE_DEPRECATION_WARNINGS
+#endif
+
     if (avctx->pix_fmt == AV_PIX_FMT_MONOBLACK)
         s->filter_type = PNG_FILTER_VALUE_NONE;
 
@@ -1087,7 +1093,14 @@ static av_cold int png_enc_close(AVCodecContext *avctx)
 static const AVOption options[] = {
     {"dpi", "Set image resolution (in dots per inch)",  OFFSET(dpi), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 0x10000, VE},
     {"dpm", "Set image resolution (in dots per meter)", OFFSET(dpm), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 0x10000, VE},
-    { NULL }
+    { "pred", "Prediction method", OFFSET(filter_type), AV_OPT_TYPE_INT, { .i64 = PNG_FILTER_VALUE_NONE }, PNG_FILTER_VALUE_NONE, PNG_FILTER_VALUE_MIXED, VE, "pred" },
+        { "none",  NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PNG_FILTER_VALUE_NONE },  INT_MIN, INT_MAX, VE, "pred" },
+        { "sub",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PNG_FILTER_VALUE_SUB },   INT_MIN, INT_MAX, VE, "pred" },
+        { "up",    NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PNG_FILTER_VALUE_UP },    INT_MIN, INT_MAX, VE, "pred" },
+        { "avg",   NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PNG_FILTER_VALUE_AVG },   INT_MIN, INT_MAX, VE, "pred" },
+        { "paeth", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PNG_FILTER_VALUE_PAETH }, INT_MIN, INT_MAX, VE, "pred" },
+        { "mixed", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = PNG_FILTER_VALUE_MIXED }, INT_MIN, INT_MAX, VE, "pred" },
+    { NULL},
 };
 
 static const AVClass pngenc_class = {