Hello, I have integrated FFMPEG to decode H264 videos streams. It works. Now,
I'm trying to use AVHWAccel to decode H264 videos streaming.
I compile FFMPEG 1.1.1 with --enable-dxva2 --enable-decoder=h264_dxva2
--enable-hwaccel=h264_dxva2.
When I initialise my CodecContext, I use the method below to find the AVHWAccel
if(h264_dxva2_hwaccel == NULL)
{ AVHWAccel* hwaccel = NULL;
while(hwaccel = av_hwaccel_next(hwaccel))
{ if((hwaccel->pix_fmt == AV_PIX_FMT_DXVA2_VLD) && (hwaccel->id ==
CODEC_ID_H264))
{ h264_dxva2_hwaccel = hwaccel;
av_register_hwaccel(h264_dxva2_hwaccel);
printf("dxva2_hwaccel = %s\r\n",h264_dxva2_hwaccel->name);
}
break;
}
}
And so affect it to my CodecContext
if (h264_dxva2_hwaccel != NULL)
{ m_lpCodecCtx->hwaccel = h264_dxva2_hwaccel;
}
But it seems I have to set the m_lpCodecCtx->hwaccel_context and I don't find
any documentations on this part.
And also, after this, I just have to have the same code than before (using
avcodec_decode_video2 and other ffmpeg functions), or the hardware decoding is
really different ?
If someone can explain me (or better have a simple sample to do this),
Regards,
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