Patch by Limin Wang <lance('\\'>>1)lmwang>(0x24^'D')<gmail>('/' & 0xFE)<com>
Thread [PATCH] set data_size to zero if failed to parse dca header



git-svn-id: file:///var/local/repositories/ffmpeg/trunk@10423 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b