From 11a8a71d4e31a15dfbbaf7c63c1b452d8c5bcdcb Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 26 Jan 2004 19:04:32 +0000
Subject: [PATCH] mpeg4 pts fix

Originally committed as revision 2724 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/h263.c      | 4 +++-
 libavcodec/mpegvideo.c | 8 ++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/libavcodec/h263.c b/libavcodec/h263.c
index 1a07b528bb..01caf044cc 100644
--- a/libavcodec/h263.c
+++ b/libavcodec/h263.c
@@ -2187,8 +2187,10 @@ static void mpeg4_encode_gop_header(MpegEncContext * s){
     put_bits(&s->pb, 1, 1);
     put_bits(&s->pb, 6, seconds);
     
-    put_bits(&s->pb, 1, 0); //closed gov == NO
+    put_bits(&s->pb, 1, !!(s->flags&CODEC_FLAG_CLOSED_GOP)); 
     put_bits(&s->pb, 1, 0); //broken link == NO
+    
+    s->last_time_base= s->time_base;
 
     ff_mpeg4_stuffing(&s->pb);
 }
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index b6720e0c88..7004a9680b 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -795,6 +795,14 @@ int MPV_encode_init(AVCodecContext *avctx)
         av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection arent supported yet\n");
         return -1;
     }
+
+    i= ff_gcd(avctx->frame_rate, avctx->frame_rate_base);
+    if(i > 1){
+        av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
+        avctx->frame_rate /= i;
+        avctx->frame_rate_base /= i;
+//        return -1;
+    }
     
     if(s->codec_id==CODEC_ID_MJPEG){
         s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x