Le tiistaina 16. heinäkuuta 2024, 18.48.06 EEST Cosmin Stejerean via ffmpeg- devel a écrit :
To add another data point, the platform decoders might also be more secure due to sandboxing. I believe as of Android Q the software decoders provided by MediaCodec have been moved to run within a constrained sandbox.
Platform decoders are in all likelihood strictly less secure than software decoders. Software decoders will run in a user-space sandboxed within their respective application. Platform decoders will run in a more privileged system service, with direct access to a kernel driver in EL1, through that to the firmware running on the video DSP. More performant and energy-efficient. But also way way less secure. The only viewpoint whence this is more secure, is the content publisher's: this model enables DRM with hardware pass-through (but that does not even apply if you use FFmpeg as the front end). -- 雷米‧德尼-库尔蒙 http://www.remlab.net/