On Mon, May 6, 2019 at 10:55 PM Mark Thompson <s...@jkqxz.net> wrote:
>
> For example: -init_hw_device vaapi:/dev/dri/renderD128,driver=foo
>
> This may be more convenient that using the environment variable, and allows
> loading different drivers for different devices in the same process.
> ---
> libavutil/hwcontext_vaapi.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
>
> diff --git a/libavutil/hwcontext_vaapi.c b/libavutil/hwcontext_vaapi.c
> index c151f8da93..35883d7855 100644
> --- a/libavutil/hwcontext_vaapi.c
> +++ b/libavutil/hwcontext_vaapi.c
> @@ -1598,6 +1598,25 @@ static int vaapi_device_create(AVHWDeviceContext *ctx,
> const char *device,
> return AVERROR(EINVAL);
> }
>
> + ent = av_dict_get(opts, "driver", NULL, 0);
> + if (ent) {
> +#if VA_CHECK_VERSION(0, 38, 0)
> + VAStatus vas;
> + vas = vaSetDriverName(display, ent->value);
> + if (vas != VA_STATUS_SUCCESS) {
> + av_log(ctx, AV_LOG_ERROR, "Failed to set driver name to "
> + "%s: %d (%s).\n", ent->value, vas, vaErrorStr(vas));
> + vaTerminate(display);
> + return AVERROR_EXTERNAL;
> + }
> +#else
> + av_log(ctx, AV_LOG_WARNING, "Driver name setting is not "
> + "supported with this VAAPI version.\n");
> + vaTerminate(display);
> + return AVERROR(ENOSYS);
> +#endif
> + }
> +
> return vaapi_device_connect(ctx, display);
> }
>
LGTM, except for the need to update the document
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