lower cache size to reduce memory taken

zhangmeng

2019-10-22 d9e2e27e4eb06f2b47607afc192212e87e8eac16

lower cache size to reduce memory taken

 csrc/worker/rec.cpp

@@ -16,7 +16,7 @@
using namespace ffwrapper;
using namespace cffmpeg_wrap::buz;

static const int cache_time = 30 * 60;
static const int cache_time = 6 * 60;

namespace cffmpeg_wrap
{