Split all the reference picture handling off h264.c.

Originally committed as revision 21172 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/Makefile

@@ -132,7 +132,7 @@ OBJS-$(CONFIG_H263_ENCODER)            += mpegvideo_enc.o mpeg4video.o mpeg4vide
                                           ratecontrol.o h263.o ituh263enc.o flvenc.o mpeg12data.o \
                                           mpegvideo.o error_resilience.o
 OBJS-$(CONFIG_H264_DECODER)            += h264.o h264idct.o h264pred.o h264_loopfilter.o h264_direct.o cabac.o \
-                                          h264_sei.o h264_ps.o\
+                                          h264_sei.o h264_ps.o h264_refs.o\
                                           mpegvideo.o error_resilience.o
 OBJS-$(CONFIG_H264_ENCODER)            += h264enc.o h264dspenc.o
 OBJS-$(CONFIG_H264_VAAPI_HWACCEL)      += vaapi_h264.o
@@ -283,7 +283,7 @@ OBJS-$(CONFIG_SVQ1_ENCODER)            += svq1enc.o svq1.o    \
                                           motion_est.o h263.o \
                                           mpegvideo.o error_resilience.o
 OBJS-$(CONFIG_SVQ3_DECODER)            += h264.o svq3.o h264idct.o h264pred.o h264_loopfilter.o h264_direct.o  \
-                                          h264_sei.o h264_ps.o\
+                                          h264_sei.o h264_ps.o h264_refs.o\
                                           cabac.o          \
                                           mpegvideo.o error_resilience.o \
                                           svq1dec.o svq1.o h263.o

libavcodec/h264.h

@@ -93,6 +93,13 @@
 #define IS_REF0(a)         ((a) & MB_TYPE_REF0)
 #define IS_8x8DCT(a)       ((a) & MB_TYPE_8x8DCT)
 
+/**
+ * Value of Picture.reference when Picture is not a reference picture, but
+ * is held for delayed output.
+ */
+#define DELAYED_PIC_REF 4
+
+
 /* NAL unit types */
 enum {
     NAL_SLICE=1,
@@ -603,6 +610,23 @@ int ff_h264_get_slice_type(H264Context *h);
  */
 int ff_h264_alloc_tables(H264Context *h);
 
+/**
+ * fills the default_ref_list.
+ */
+int ff_h264_fill_default_ref_list(H264Context *h);
+
+int ff_h264_decode_ref_pic_list_reordering(H264Context *h);
+void ff_h264_fill_mbaff_ref_list(H264Context *h);
+void ff_h264_remove_all_refs(H264Context *h);
+
+/**
+ * Executes the reference picture marking (memory management control operations).
+ */
+int ff_h264_execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count);
+
+int ff_h264_decode_ref_pic_marking(H264Context *h, GetBitContext *gb);
+
+
 /**
  * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
  */