Function ff_vaapi_decode_init

libavcodec/vaapi_decode.c:692–736

}

int ff_vaapi_decode_init(AVCodecContext *avctx)
{
    VAAPIDecodeContext *ctx = avctx->internal->hwaccel_priv_data;
    VAStatus vas;
    int err;

    ctx->va_config  = VA_INVALID_ID;
    ctx->va_context = VA_INVALID_ID;

    err = ff_decode_get_hw_frames_ctx(avctx, AV_HWDEVICE_TYPE_VAAPI);
    if (err < 0)
        goto fail;

    ctx->frames = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
    ctx->hwfc   = ctx->frames->hwctx;
    ctx->device = ctx->frames->device_ctx;
    ctx->hwctx  = ctx->device->hwctx;

    err = vaapi_decode_make_config(avctx, ctx->frames->device_ref,
                                   &ctx->va_config, NULL);
    if (err)
        goto fail;

    vas = vaCreateContext(ctx->hwctx->display, ctx->va_config,
                          avctx->coded_width, avctx->coded_height,
                          VA_PROGRESSIVE,
                          ctx->hwfc->surface_ids,
                          ctx->hwfc->nb_surfaces,
                          &ctx->va_context);
    if (vas != VA_STATUS_SUCCESS) {
        av_log(avctx, AV_LOG_ERROR, "Failed to create decode "
               "context: %d (%s).\n", vas, vaErrorStr(vas));
        err = AVERROR(EIO);
        goto fail;
    }

    av_log(avctx, AV_LOG_DEBUG, "Decode context initialised: "
           "%#x/%#x.\n", ctx->va_config, ctx->va_context);

    return 0;

fail:
    ff_vaapi_decode_uninit(avctx);
    return err;
}

int ff_vaapi_decode_uninit(AVCodecContext *avctx)
{