Что думаешь? Оцени!
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,更多细节参见谷歌
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Crucially, hardware acceleration in FFmpeg is built on top of the software codecs. Parsing of headers, threading, scheduling frames, slices, and error correction/handling all happen in software. Decoding of all video data is the only part offloaded. This combines robust well-tested code with hardware acceleration. We can directly translate the threading of independent frames that software implementations do by dispatching multiple frames for parallel decoding to fully saturate a GPU.