lavc implements emu-edge in VP8 now

(cherry picked from commit 5a7825ca8ae47062a3299864262dda853856183a)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/codec/avcodec/video.c

@@ -300,7 +300,7 @@ int InitVideoDec( decoder_t *p_dec, AVCodecContext *p_context,
        (p_sys->p_codec->capabilities & CODEC_CAP_DR1) &&
         /* No idea why ... but this fixes flickering on some TSCC streams */
         p_sys->i_codec_id != CODEC_ID_TSCC &&
-#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( 52, 68, 2 )
+#if (LIBAVCODEC_VERSION_INT >= AV_VERSION_INT( 52, 68, 2 ) ) && (LIBAVCODEC_VERSION_INT < AV_VERSION_INT( 52, 100, 1 ) )
         /* avcodec native vp8 decode doesn't handle EMU_EDGE flag, and I
            don't have idea howto implement fallback to libvpx decoder */
         p_sys->i_codec_id != CODEC_ID_VP8 &&