PyPI 官网下载 | cpix-1.1.3.tar.gz

# cpix Python library for working with CPIX 2.2 (DASH-IF Content Protection Information Exchange) documents For more details on CPIX see: * https://dashif.org/guidelines/ * https://dash-industry-forum.github.io/docs/CPIX2.2/Cpix.html ## Supported features * Creation of CPIX documents * Content keys * Usage rules * DRM systems * Parsing of CPIX documents * Validation against CPIX XSD ## Not yet implemented * Validation of document correctness (e.g. kid referenced by usage rule matches a content key) ## Not supported * Encryption, decryption and signing are not supported. ## Installation Install using [pip](https://pip.pypa.io/): ``` pip install cpix ``` ## Examples ### Scripts Example scripts which can be used with Widevine and Playready test servers to get or create keys and produce CPIX documents are available in `example`. ### Simple CPIX To create a simple CPIX document with a single key: ```python import cpix full_cpix = cpix.CPIX( content_keys=cpix.ContentKeyList( cpix.ContentKey( kid="0DC3EC4F-7683-548B-81E7-3C64E582E136", cek="WADwG2qCqkq5TVml+U5PXw==" ) ), drm_systems=cpix.DRMSystemList( cpix.DRMSystem( kid="0DC3EC4F-7683-548B-81E7-3C64E582E136", system_id="EDEF8BA9-79D6-4ACE-A3C8-27DCD51D21ED", pssh=("AAAAxnBzc2gBAAAA7e+LqXnWSs6jyCfc1R0h7QAAAAINw+xPdoNUi4HnPGT" "lguE2FEe37S9mVyu9EwbOfPNhDQAAAIISEBRHt+0vZlcrvRMGznzzYQ0SEF" "rGoR6qL17Vv2aMQByBNMoSEG7hNRbI51h7rp9+zT6Zom4SEPnsEqYaJl1Hj" "4MzTjp40scSEA3D7E92g1SLgec8ZOWC4TYaDXdpZGV2aW5lX3Rlc3QiEXVu" "aWZpZWQtc3RyZWFtaW5nSOPclZsG") ) ) ) ``` This can then be printed as a formatted XML document: ```python print(str(full_cpix.pretty_print(xml_declaration=True), "utf-8'")) ``` ```xml <?xml version='1.0' encoding='utf-8'?> <CPIX xmlns:pskc="urn:ietf:params:xml:ns:keyprov:pskc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:dashif:org:cpix" xsi:schemaLocation="urn:dashif:org:cpix cpix.xsd"> <ContentKeyList> <ContentKey kid="0dc3ec4f-7683-548b-81e7-3c64e582e136"> <Data> <pskc:Secret> <pskc:PlainValue>WADwG2qCqkq5TVml+U5PXw==</pskc:PlainValue> </pskc:Secret> </Data> </ContentKey> </ContentKeyList> <DRMSystemList> <DRMSystem kid="0dc3ec4f-7683-548b-81e7-3c64e582e136" systemId="edef8ba9-79d6-4ace-a3c8-27dcd51d21ed"> <PSSH>AAAAxnBzc2gBAAAA7e+LqXnWSs6jyCfc1R0h7QAAAAINw+xPdoNUi4HnPGTlguE2FEe37S9mVyu9EwbOfPNhDQAAAIISEBRHt+0vZlcrvRMGznzzYQ0SEFrGoR6qL17Vv2aMQByBNMoSEG7hNRbI51h7rp9+zT6Zom4SEPnsEqYaJl1Hj4MzTjp40scSEA3D7E92g1SLgec8ZOWC4TYaDXdpZGV2aW5lX3Rlc3QiEXVuaWZpZWQtc3RyZWFtaW5nSOPclZsG</PSSH> </DRMSystem> </DRMSystemList> </CPIX> ```