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hwcontext_vaapi: Add option to set driver name

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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.
This commit is contained in:
Mark Thompson 2018-11-14 21:25:00 +00:00
parent 6b6b8a6371
commit 7f3f5a24a1
1 changed files with 17 additions and 0 deletions
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17
libavutil/hwcontext_vaapi.c
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@ -1598,6 +1598,23 @@ 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");
#endif
}
return vaapi_device_connect(ctx, display);
}