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<p class="MsoNormal">Libyami is core video library to accelerate decoding/encoding based on libva.<o:p></o:p></p>
<p class="MsoNormal">Libyami can be treated as development kit for VAAPI. It is developed by C++ language, with simple/efficient APIs, without external dependencies.<o:p></o:p></p>
<p class="MsoNormal">libyami targets two type of usage:<o:p></o:p></p>
<p class="MsoNormal"> - Hardware accelerated codec is the major gap (there is existing media framework ), for example: Chromeos/Android, maybe ffmpeg.<o:p></o:p></p>
<p class="MsoNormal"> - Usage is simple enough that codec is the major interest, for example: remote desktop client/server, video surveillance.<o:p></o:p></p>
<p class="MsoNormal">So far H.264 decode/encode, VP8 and JPEG decode are supported. VP8/JPEG encode support is under development.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">There are rich tests/examples in yami for a try. The tests can run without Window system (X11/Wayland etc),<o:p></o:p></p>
<p class="MsoNormal">some modes of video output are supported: including raw data dump and some modes of texture (TFP, drm flink name, dma_buf).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">More details see: https://github.com/01org/libyami/wiki<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The future release plan are:<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt">Nov: v0.11: <o:p></o:p></p>
<p class="MsoNormal" style="text-indent:9.0pt"> V4L2 VDA/VEA<o:p></o:p></p>
<p class="MsoNormal"> Dec: v0.2<o:p></o:p></p>
<p class="MsoNormal"> Vp8 and jpeg encoder(depends on driver release)<o:p></o:p></p>
<p class="MsoNormal"> unified input/output buffer of yami<o:p></o:p></p>
<p class="MsoNormal"> Feb'15: v0.3<o:p></o:p></p>
<p class="MsoNormal"> Vp9 decoder<o:p></o:p></p>
<p class="MsoNormal"> transcoding support with unified input/output buffer<o:p></o:p></p>
<p class="MsoNormal"> camera dma_buf support, camera with jpeg input<o:p></o:p></p>
<p class="MsoNormal"> use yami in ffmpeg for hw codec<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> Future:<o:p></o:p></p>
<p class="MsoNormal"> h265 decoder<o:p></o:p></p>
<p class="MsoNormal"> legacy codec: mpeg2 decoder/encoder, vc1 decoder, mpeg4/h263 decoder/encoder<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Known issues:<o:p></o:p></p>
<p class="MsoNormal"> some jpeg file similarity <0.99 (~0.98) after decoding<o:p></o:p></p>
<p class="MsoNormal"> https://github.com/01org/libyami/issues/108<o:p></o:p></p>
<p class="MsoNormal"> playback performance through gst-omx is not good:<o:p></o:p></p>
<p class="MsoNormal"> https://github.com/01org/libyami/issues/34<o:p></o:p></p>
<p class="MsoNormal"> Encodeing quality through gst-omx is not good:<o:p></o:p></p>
<p class="MsoNormal"> https://github.com/01org/libyami/issues/36<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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