avcodec: Add avpriv_codec_get_cap_skip_frame_fill_param()

With this the use of the caps_internal from libavformat can be avoided
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/internal.h

@@ -293,6 +293,8 @@ const uint8_t *avpriv_find_start_code(const uint8_t *p,
                                       const uint8_t *end,
                                       uint32_t *state);
 
+int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec);
+
 /**
  * Check that the provided frame dimensions are valid and set them on the codec
  * context.

libavcodec/utils.c

@@ -1126,6 +1126,10 @@ int av_codec_get_max_lowres(const AVCodec *codec)
     return codec->max_lowres;
 }
 
+int avpriv_codec_get_cap_skip_frame_fill_param(const AVCodec *codec){
+    return !!(codec->caps_internal & FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM);
+}
+
 static void get_subtitle_defaults(AVSubtitle *sub)
 {
     memset(sub, 0, sizeof(*sub));