ffmpeg - Is there a MS-DRM client library for linux? -

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i have used libraries (libavformat , libavcodec) decode mms streaming urls. of them protected drm. when try decode them, library warn

in libavformat/asfdec.c:

if (!s->keylen) {     if (!guidcmp(&g, &ff_asf_content_encryption)) {         av_log(s, av_log_warning, "drm protected stream detected, decoding fail!\n");     } else if (!guidcmp(&g, &ff_asf_ext_content_encryption)) {         av_log(s, av_log_warning, "ext drm protected stream detected, decoding fail!\n");     } else if (!guidcmp(&g, &ff_asf_digital_signature)) {         av_log(s, av_log_warning, "digital signature detected, decoding fail!\n");     } }

the variable s struct avformatcontext. question key? seems decode drm key.

i asf spec, , try patch asfdec.c. now, have acquiring license url , key id. problem can rewrite 'is there ms-drm client library linux?' (old: how decode mms streaming url drm ffmpeg?)

is possible use license url , key id content key ?

in principle can license playready device porting kit microsoft, it's gonna set $50,000. standard ansi c, compile linux, , can decrypt both windows media drm , playready asf streams. believe there no other ways on linux.


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