Merge remote-tracking branch 'qatar/master'

* qatar/master:
  wmalosslessdec: increase channel_coeffs/residues size
  wmalosslessdec: increase WMALL_BLOCK_MAX_BITS to 14.
  lagarith: check count before writing zeros.
  wmaprodec: check num_vec_coeffs for validity
  avidec: use actually read size instead of requested size
  avidec: return 0, not packet size from read_packet().

Conflicts:
	libavcodec/lagarith.c
	libavcodec/wmalosslessdec.c
	libavcodec/wmaprodec.c
	libavformat/avidec.c

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

libavformat/avidec.c

@@ -1205,7 +1205,7 @@ resync:
             }
             ast->frame_offset += get_duration(ast, pkt->size);
         }
-        ast->remaining -= size;
+        ast->remaining -= err;
         if(!ast->remaining){
             avi->stream_index= -1;
             ast->packet_size= 0;
@@ -1227,7 +1227,7 @@ resync:
                 avi->dts_max = dts;
         }
 
-        return size;
+        return 0;
     }
 
     if ((err = avi_sync(s, 0)) < 0)