mpegvideo: Split picture allocation for encoding and decoding

The main ff_alloc_picture() function is made more generic with all the
parameters necessary as arguments. This will allows to move most of the
related functions to a separate file later.

Right now wrappers are provided to try and minimize the number of
changes in the code.

1 files changed, 5 insertions, 1 deletions

diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index ecb13caf75..b8740a27c0 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -708,7 +708,11 @@ void ff_mpv_motion(MpegEncContext *s,
  * Allocate a Picture.
  * The pixels are allocated/set by calling get_buffer() if shared = 0.
  */
-int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared);
+int ff_alloc_picture(AVCodecContext *avctx, Picture *pic, MotionEstContext *me,
+                     ScratchpadContext *sc, int shared, int encoding,
+                     int chroma_x_shift, int chroma_y_shift, int out_format,
+                     int mb_stride, int mb_height, int b8_stride,
+                     ptrdiff_t *linesize, ptrdiff_t *uvlinesize);
 
 int ff_mpeg_framesize_alloc(AVCodecContext *avctx, MotionEstContext *me,
                             ScratchpadContext *sc, int linesize);