Rename alloc_picture to ff_alloc_picture and move its definition

in mpegvideo.h to avoid including mpegvideo_common.h in mpeg12.c,
because it contains motion code.

Originally committed as revision 18968 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/mpeg12.c

@@ -30,7 +30,6 @@
 #include "avcodec.h"
 #include "dsputil.h"
 #include "mpegvideo.h"
-#include "mpegvideo_common.h"
 
 #include "mpeg12.h"
 #include "mpeg12data.h"
@@ -2373,7 +2372,7 @@ static int decode_chunks(AVCodecContext *avctx,
                         /* Allocate a dummy frame */
                         i= ff_find_unused_picture(s2, 0);
                         s2->last_picture_ptr= &s2->picture[i];
-                        if(alloc_picture(s2, s2->last_picture_ptr, 0) < 0)
+                        if(ff_alloc_picture(s2, s2->last_picture_ptr, 0) < 0)
                             return -1;
                     }
                 }

libavcodec/mpegvideo.c

@@ -219,7 +219,7 @@ static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
  * allocates a Picture
  * The pixels are allocated/set by calling get_buffer() if shared=0
  */
-int alloc_picture(MpegEncContext *s, Picture *pic, int shared){
+int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared){
     const int big_mb_num= s->mb_stride*(s->mb_height+1) + 1; //the +1 is needed so memset(,,stride*height) does not sig11
     const int mb_array_size= s->mb_stride*s->mb_height;
     const int b8_array_size= s->b8_stride*s->mb_height*2;
@@ -917,7 +917,7 @@ alloc:
 
         pic->coded_picture_number= s->coded_picture_number++;
 
-        if(alloc_picture(s, pic, 0) < 0)
+        if(ff_alloc_picture(s, pic, 0) < 0)
             return -1;
 
         s->current_picture_ptr= pic;

libavcodec/mpegvideo.h

@@ -711,6 +711,12 @@ void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][6
 void ff_init_block_index(MpegEncContext *s);
 void ff_copy_picture(Picture *dst, Picture *src);
 
+/**
+ * allocates a Picture
+ * The pixels are allocated/set by calling get_buffer() if shared=0
+ */
+int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared);
+
 extern const enum PixelFormat ff_pixfmt_list_420[];
 extern const enum PixelFormat ff_hwaccel_pixfmt_list_420[];
 

libavcodec/mpegvideo_enc.c

@@ -817,14 +817,14 @@ static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
             pic->data[i]= pic_arg->data[i];
             pic->linesize[i]= pic_arg->linesize[i];
         }
-        alloc_picture(s, (Picture*)pic, 1);
+        ff_alloc_picture(s, (Picture*)pic, 1);
     }else{
         i= ff_find_unused_picture(s, 0);
 
         pic= (AVFrame*)&s->picture[i];
         pic->reference= 3;
 
-        alloc_picture(s, (Picture*)pic, 0);
+        ff_alloc_picture(s, (Picture*)pic, 0);
 
         if(   pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
            && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
@@ -1150,7 +1150,7 @@ no_output_pic:
             Picture *pic= &s->picture[i];
 
             pic->reference              = s->reordered_input_picture[0]->reference;
-            alloc_picture(s, pic, 0);
+            ff_alloc_picture(s, pic, 0);
 
             /* mark us unused / free shared pic */
             if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)