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hwcontext_vaapi: Try to support the VDPAU wrapper 

The driver is somewhat bitrotten (not updated for years) but is still
usable for decoding with this change.  To support it, this adds a new
driver quirk to indicate no support at all for surface attributes.

Based on a patch by wm4 <nfxjfg@googlemail.com>.

(cherry picked from commit e791b915c7)
This commit is contained in:
Mark Thompson 2017-01-30 19:11:28 +00:00
parent 204008354f
commit f2e4fb61af
2 changed files with 52 additions and 34 deletions
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13
libavutil/hwcontext_vaapi.c
View File

@ -155,7 +155,8 @@ static int vaapi_frames_get_constraints(AVHWDeviceContext *hwdev,
unsigned int fourcc;
int err, i, j, attr_count, pix_fmt_count;
if (config) {
if (config &&
!(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES)) {
attr_count = 0;
vas = vaQuerySurfaceAttributes(hwctx->display, config->config_id,
0, &attr_count);
@ -273,6 +274,11 @@ static const struct {
"ubit",
AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE,
},
{
"VDPAU wrapper",
"Splitted-Desktop Systems VDPAU backend for VA-API",
AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES,
},
};
static int vaapi_device_init(AVHWDeviceContext *hwdev)
@ -451,6 +457,7 @@ static int vaapi_frames_init(AVHWFramesContext *hwfc)
}
if (!hwfc->pool) {
if (!(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES)) {
int need_memory_type = !(hwctx->driver_quirks & AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE);
int need_pixel_format = 1;
for (i = 0; i < avfc->nb_attributes; i++) {
@ -488,6 +495,10 @@ static int vaapi_frames_init(AVHWFramesContext *hwfc)
};
}
av_assert0(i == ctx->nb_attributes);
} else {
ctx->attributes = NULL;
ctx->nb_attributes = 0;
}
ctx->rt_format = rt_format;

7
libavutil/hwcontext_vaapi.h
View File

@ -51,6 +51,13 @@ enum {
* so the surface allocation code will not try to use it.
*/
AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE = (1 << 2),
/**
* The driver does not support surface attributes at all.
* The surface allocation code will never pass them to surface allocation,
* and the results of the vaQuerySurfaceAttributes() call will be faked.
*/
AV_VAAPI_DRIVER_QUIRK_SURFACE_ATTRIBUTES = (1 << 3),
};
/**