Function ff_d3d12va_encode_init

libavcodec/d3d12va_encode.c:1726–1863

}

int ff_d3d12va_encode_init(AVCodecContext *avctx)
{
    FFHWBaseEncodeContext *base_ctx = avctx->priv_data;
    D3D12VAEncodeContext       *ctx = avctx->priv_data;
    D3D12_FEATURE_DATA_VIDEO_FEATURE_AREA_SUPPORT support = { 0 };
    D3D12_FEATURE_DATA_FORMAT_INFO format_info = { 0 };
    int err;
    HRESULT hr;

    err = ff_hw_base_encode_init(avctx, base_ctx);
    if (err < 0)
        goto fail;

    base_ctx->op = &d3d12va_type;

    ctx->hwctx = base_ctx->device->hwctx;

    ctx->resolution.Width  = base_ctx->input_frames->width;
    ctx->resolution.Height = base_ctx->input_frames->height;

    hr = ID3D12Device_QueryInterface(ctx->hwctx->device, &IID_ID3D12Device3, (void **)&ctx->device3);
    if (FAILED(hr)) {
        av_log(avctx, AV_LOG_ERROR, "ID3D12Device3 interface is not supported.\n");
        err = AVERROR_UNKNOWN;
        goto fail;
    }

    hr = ID3D12Device3_QueryInterface(ctx->device3, &IID_ID3D12VideoDevice3, (void **)&ctx->video_device3);
    if (FAILED(hr)) {
        av_log(avctx, AV_LOG_ERROR, "ID3D12VideoDevice3 interface is not supported.\n");
        err = AVERROR_UNKNOWN;
        goto fail;
    }

    if (FAILED(ID3D12VideoDevice3_CheckFeatureSupport(ctx->video_device3, D3D12_FEATURE_VIDEO_FEATURE_AREA_SUPPORT,
                                                      &support, sizeof(support))) && !support.VideoEncodeSupport) {
        av_log(avctx, AV_LOG_ERROR, "D3D12 video device has no video encoder support.\n");
        err = AVERROR(EINVAL);
        goto fail;
    }

    format_info.Format = ((AVD3D12VAFramesContext *)base_ctx->input_frames->hwctx)->format;
    if (FAILED(ID3D12VideoDevice_CheckFeatureSupport(ctx->hwctx->device, D3D12_FEATURE_FORMAT_INFO,
        &format_info, sizeof(format_info)))) {
        av_log(avctx, AV_LOG_ERROR, "Failed to query format plane count: %#lx\n", hr);
        err = AVERROR_EXTERNAL;
        goto fail;
    }
    ctx->plane_count = format_info.PlaneCount;

    err = d3d12va_encode_set_profile(avctx);
    if (err < 0)
        goto fail;

    if (ctx->codec->set_tile) {
        err = ctx->codec->set_tile(avctx);
        if (err < 0)
            goto fail;