mime parser for reddit hosted video

tests/cassettes/test_parser[reddit_gif].yaml

@@ -0,0 +1,40 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Connection: [keep-alive]
+      User-Agent: [python-requests/2.12.4]
+    method: GET
+    uri: https://v.redd.it/wkm9zol8c6fz/DASHPlaylist.mpd
+  response:
+    body:
+      string: !!binary |
+        H4sIAAAAAAAAA4VSXY+bMBB8z6+w/E4whKYJCjnllKt6aquikGsfTz68gCVskG3SXH99F8ippDmp
+        vAD7MTM7u5u7s6rJCYyVjU5oMGeUgM4bIXWZ0KfjJ29FiXVcC143GhL6CpbebWebb+meKBCSpwYs
+        aMcdAuw7M7wTmh6DaB4uoowSJfV9VxRgjlLBkJl/YAwTrWkKWYNNaGd0rFooY8FtFV/isbRNUXiN
+        9gQoFBCHLAgoca8totieMKcE1esbAJtX2IGBS892RvDZpGBkI4h4R+RYMVTtBG/HaTJwxEKpcLpd
+        LUvdfyTUmQ7Qku7l/6nMcePsT+mqbJeiuROageoA7cQ88oJD/pLCVQldspCtF5TgIiDH+fgpD+aR
+        iFiABIXhCg7coQ0LXFcFsqyQPYzwR4qE/njcP3z3gt55BcfBrpMU0PiqjYZlGjfRRC6Uffu1vkHj
+        PbfwdPi63e+yz89Lxp6/bPy32G11Ng7eFxCpBZwPXJfIv1p/9AIWIv3f6MOZ52+m3UINcI9aOslr
+        +Xs0yIxgzFutl9R/h96f8P/jtX9t9mTh/tXGL7fij8eCh+7jpW9nfwDvbQVhKAMAAA==
+    headers:
+      Accept-Ranges: [bytes]
+      Age: ['1814']
+      Connection: [keep-alive]
+      Content-Encoding: [gzip]
+      Content-Length: ['448']
+      Content-Type: [application/dash+xml]
+      Date: ['Sat, 12 Aug 2017 06:02:01 GMT']
+      ETag: ['"981cd6c498c30ab3c4f1c743be7e6f60"']
+      Last-Modified: ['Fri, 11 Aug 2017 21:10:49 GMT']
+      Server: [snooserv]
+      Vary: ['Accept-Encoding,Origin']
+      Via: [1.1 varnish]
+      X-Cache: [HIT]
+      X-Cache-Hits: ['2']
+      X-Served-By: [cache-mdw17337-MDW]
+      X-Timer: ['S1502517721.219943,VS0,VE0']
+    status: {code: 200, message: OK}
+version: 1

tests/cassettes/test_parser[reddit_video].yaml

@@ -0,0 +1,44 @@
+interactions:
+- request:
+    body: null
+    headers:
+      Accept: ['*/*']
+      Accept-Encoding: ['gzip, deflate']
+      Connection: [keep-alive]
+      User-Agent: [python-requests/2.12.4]
+    method: GET
+    uri: https://v.redd.it/zv89llsvexdz/DASHPlaylist.mpd
+  response:
+    body:
+      string: !!binary |
+        H4sIAAAAAAAAA+WWXW+bMBSG7/srLN8TbKAUUEiVNp0WbdWikGyXkYsNWAKD+Mja/fodIJFImq5L
+        lV0tN0ns4/PxPuYcxrfPWYq2oqxkrnxMRwQjocKcSxX7eL36pDkYVTVTnKW5Ej5+ERW+nVyNHxcz
+        lAku2aIUlVA1q8HBrCm7bx8vVpSOblw7wCiT6q6JIlGuZCa6ndE1IbBRlHkkU1H5uCmVlxUi9jir
+        Em+37skqjyItVxoXGSTgGYRSjOqXArxUbcAQI8hevXJQhQmcgIXdmckVgs94IUqZc8RPJNlbdFZT
+        zoq+mkDUqBJxBtVNUxmr9oeP67IRIEnz9P5WULOyrn7IOgmmCxB3EKYLtRTFQDz0BEX+lLxOfGxY
+        1KaOiRGQECEUyLYhHVncIjTCKCpZJpasBh1M4JUIGScQ3nLgj+Q+/j6fPXzTaCt9JladXlvJRa5n
+        hdXRLOtBUmgf07aOEuySvGOVWC+/TmbT4PPG2Fibx7G+X3ttHfSVtwZIKi6el0zFEN8lpkYJsfFg
+        9eGZhXvVXrvq3M2VrCVL5a9eobJ3RjSXGFg/EV4fxD8SWz9U+69RUIM4N8bNKRTiTRSmfYDCOBMF
+        dZ13UVCA8Z+hsInr0uvzSBjWAQnzXBKm8S4Jm5DNl4+RMFoS1xcjQS9GYqwf9MG3+uOf0bGGyzxg
+        WZHCNOnRQI8iAGT4fJmUtn19DxVwsJFFRkaPbbqezY96Wef2NLYT1U9b6/uEKSXS+1xFMt71f9SN
+        CTHn61IeTxDDJMT0TK8LtQn705tweHw3jrYsbSCn08/A/kp0bj5yQxzT0FzzUhfEMf/xBRnr/YyF
+        9wMdXhAmV78BYdjQZV8IAAA=
+    headers:
+      Accept-Ranges: [bytes]
+      Age: ['3435']
+      Connection: [keep-alive]
+      Content-Encoding: [gzip]
+      Content-Length: ['644']
+      Content-Type: [application/dash+xml]
+      Date: ['Sat, 12 Aug 2017 06:02:01 GMT']
+      ETag: ['"c8a71f31b45dbcdb30f8c03bc08e444b"']
+      Last-Modified: ['Sat, 05 Aug 2017 14:05:39 GMT']
+      Server: [snooserv]
+      Vary: ['Accept-Encoding,Origin']
+      Via: [1.1 varnish]
+      X-Cache: [HIT]
+      X-Cache-Hits: ['2']
+      X-Served-By: [cache-mdw17335-MDW]
+      X-Timer: ['S1502517721.351252,VS0,VE0']
+    status: {code: 200, message: OK}
+version: 1