mpeg4 header encoding bugfix

Originally committed as revision 1392 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/avcodec.h

@@ -5,8 +5,8 @@
 
 #define LIBAVCODEC_VERSION_INT 0x000406
 #define LIBAVCODEC_VERSION     "0.4.6"
-#define LIBAVCODEC_BUILD       4650
-#define LIBAVCODEC_BUILD_STR   "4650"
+#define LIBAVCODEC_BUILD       4651
+#define LIBAVCODEC_BUILD_STR   "4651"
 
 enum CodecID {
     CODEC_ID_NONE, 
@@ -147,6 +147,7 @@ static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
 #define CODEC_FLAG_LOW_DELAY      0x00080000 /* force low delay / will fail on b frames */
 #define CODEC_FLAG_ALT_SCAN       0x00100000 /* use alternate scan */
 #define CODEC_FLAG_TRELLIS_QUANT  0x00200000 /* use trellis quantization */
+#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 /* place global headers in extradata instead of every keyframe */
 
 /* codec capabilities */
 
@@ -894,7 +895,7 @@ typedef struct AVCodecContext {
      * decoding: unused
      */
     int last_predictor_count;
-    
+
     /**
      * pre pass for motion estimation
      * encoding: set by user.
@@ -902,6 +903,20 @@ typedef struct AVCodecContext {
      */
     int pre_me;
 
+    /**
+     * motion estimation pre pass compare function
+     * encoding: set by user.
+     * decoding: unused
+     */
+    int me_pre_cmp;
+    
+    /**
+     * ME pre pass diamond size & shape
+     * encoding: set by user.
+     * decoding: unused
+     */
+    int pre_dia_size;
+
 } AVCodecContext;
 
 typedef struct AVCodec {

libavcodec/h263.c

@@ -1727,11 +1727,9 @@ void mpeg4_encode_picture_header(MpegEncContext * s, int picture_number)
     int time_div, time_mod;
     
     if(s->pict_type==I_TYPE){
-        if(picture_number - s->last_vo_picture_number >= 300 || picture_number==0){
+        if(!(s->flags&CODEC_FLAG_GLOBAL_HEADER)){
             mpeg4_encode_visual_object_header(s);
             mpeg4_encode_vol_header(s, 0, 0);
-
-            s->last_vo_picture_number= picture_number;
         }
         mpeg4_encode_gop_header(s);
     }

libavcodec/mpegvideo.h

@@ -443,7 +443,6 @@ typedef struct MpegEncContext {
     INT8 (*field_select_table)[2];   /* wtf, no really another table for interlaced b frames */
     int t_frame;                     /* time distance of first I -> B, used for interlaced b frames */
     int padding_bug_score;           /* used to detect the VERY common padding bug in MPEG4 */
-    int last_vo_picture_number;      /* last picture number for which we added a VOS/VO/VOL header */
 
     /* divx specific, used to workaround (many) bugs in divx5 */
     int divx_version;

tests/ffmpeg.regression.ref

@@ -11,12 +11,12 @@ a6527e93fe0e2e5942934efbde59f78b *./data/a-h263.avi
 f3bc40b0a09eb06504fa5b51eb9135ee *./data/out.yuv
 a11e0b741fa3c7fc491fb58ab8f7ca8d *./data/a-h263p.avi
 615e3db2bdc535ca5b17996b29cabf24 *./data/out.yuv
-466e2365c9027dea8695cf205adf3b9d *./data/a-odivx.avi
+67a4922527e2341d11d6a61c79b497e5 *./data/a-odivx.avi
 3ede54eadc97f43b4ab260faeb5e8674 *./data/out.yuv
-5811f89254bc1f59528247f3daf11c1f *./data/a-mpeg4-rc.avi
+4fdf373ede0785cc381687b8f1b207d4 *./data/a-mpeg4-rc.avi
 d34057ff0806320c8be54fe34210c937 *./data/out.yuv
-d0c2e8f437f0a08470764e1f12dd1ec6 *./data/a-mpeg4-adv.avi
-1a2795985b820b4ed5064abf4187fd9a *./data/out.yuv
+2abefdb7650d076021ad455cc5ef040e *./data/a-mpeg4-adv.avi
+a26abb66bf9c5f5df3ab971dfdf1189d *./data/out.yuv
 2846c8e3d97d7395eb746bfce44e0443 *./data/a-mjpeg.avi
 278033451d7a6bfeb8339abbe4228499 *./data/out.yuv
 b5f5efce96150d5cc8f5af8024ae3688 *./data/a-rv10.rm