[Libav-user] ffmpeg H.264 decoding

[Malik Cissé]

Hi,

I managed to get an ffmpeg based H.264 elementary stream decoder work.
It uses following synthax to decode one frame:
...
codec = avcodec_find_decoder(CODEC_ID_H264);
..
len = avcodec_decode_video2(c, picture, &got_picture, &pkt);

My question:
The decoding goes very fast and CPU usage is low.
Can I guaranty same performance on similar CPU's?
Is any Hardware acceleration (mmx, GPU, DXVA, etc) used to decode the frames?
What is done behind the scene? Is there any buffering?
Thanks,

Malik

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