Merge remote-tracking branch 'qatar/release/9' into release/1.1

* qatar/release/9:
  arm: Don't clobber callee saved registers in scalarproduct
  alsdec: check block length
  h264/mpegvideo: do not provide pixel formats for hwaccels that are not compiled in
  mpeg4video_parser: init mpeg4 static tables.

Conflicts:
	libavcodec/mpeg4video_parser.c
	libavcodec/mpeg4videodec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/alsdec.c

@@ -1394,6 +1394,11 @@ static int read_frame_data(ALSDecContext *ctx, unsigned int ra_frame)
 
         for (b = 0; b < ctx->num_blocks; b++) {
             bd.block_length = div_blocks[b];
+            if (bd.block_length <= 0) {
+                av_log(ctx->avctx, AV_LOG_WARNING,
+                       "Invalid block length %d in channel data!\n", bd.block_length);
+                continue;
+            }
 
             for (c = 0; c < avctx->channels; c++) {
                 bd.const_block = ctx->const_block + c;