From 1671083f55132a48154b9f898c1cf4308ded17aa Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Fri, 23 Apr 2004 21:17:31 +0000
Subject: [PATCH] sanity check
Originally committed as revision 3047 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
libavcodec/mpegvideo.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index d92914bb668..67316e949eb 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -956,7 +956,13 @@ int MPV_encode_init(AVCodecContext *avctx)
av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
return -1;
}
-
+
+ if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
+ && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
+ av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
+ return -1;
+ }
+
if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supporetd by codec\n");
return -1;
--
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