Hello,

The hw acceleration subsystem is controlled by
AVCodecContext->hwaccel
AVCodecContext->hwaccel_context

Unfortunately, calling

codec=avcodec_find_decoder_by_name("h264_vdpau")
avcodec_alloc_context3(codec)

Does not populate neither "AVCodecContext->hwaccel" nor "AVCodecContext->hwaccel_context".

Following these lines ..

http://stackoverflow.com/questions/5985273/using-ffmpeg-hwaccel-from-c

I could maybe use:

libavcodec/utils.c :
static int setup_hwaccel(AVCodecContext *avctx, const enum AVPixelFormat fmt, const char *name)

.. but that function is not part of the public api!

So, the questions are:

- Is there an api endpoint to set "AVCodecContext->hwaccel" and "AVCodecContext->hwaccel_context" ? - Is the hw acceleration api just a "scam" and I am supposed to implement the calls to vdpau by myself ? - .. in that case, it would be nice to use libav/ffmpeg for sps and pps parsing, but that is again, way out of the api..

Regards,

Sampsa

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