static int vdpau_alloc(AVCodecContext *s)
{
int loglevel = AV_LOG_ERROR;
VDPAUContext *ctx;
const char *display, *vendor;
VdpStatus err;
int ret;
VdpDevice device;
VdpGetProcAddress *get_proc_address;
VdpGetInformationString *get_information_string;
VDPAUHWDevicePriv *device_priv = NULL;
AVHWDeviceContext *device_ctx;
AVVDPAUDeviceContext *device_hwctx;
AVHWFramesContext *frames_ctx;
ctx = av_mallocz(sizeof(*ctx));
if (!ctx)
return AVERROR(ENOMEM);
device_priv = av_mallocz(sizeof(*device_priv));
if (!device_priv) {
av_freep(&ctx);
goto fail;
}
device_priv->dpy = XOpenDisplay(":0");
if (!device_priv->dpy) {
av_log(NULL, loglevel, "Cannot open the X11 display %s.\n",
XDisplayName(":0"));
goto fail;
}
display = XDisplayString(device_priv->dpy);
err = vdp_device_create_x11(device_priv->dpy, XDefaultScreen(device_priv->dpy),
&device, &get_proc_address);
if (err != VDP_STATUS_OK) {
av_log(NULL, loglevel, "VDPAU device creation on X11 display %s failed.\n",
display);
goto fail;
}
#define GET_CALLBACK(id, result) \
do { \
void *tmp; \
err = get_proc_address(device, id, &tmp); \
if (err != VDP_STATUS_OK) { \
av_log(NULL, loglevel, "Error getting the " #id " callback.\n"); \
goto fail; \
} \
result = tmp; \
} while (0)
GET_CALLBACK(VDP_FUNC_ID_GET_INFORMATION_STRING, get_information_string);
GET_CALLBACK(VDP_FUNC_ID_DEVICE_DESTROY, device_priv->device_destroy);
device_ref = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_VDPAU);
if (!device_ref)
goto fail;
device_ctx = (AVHWDeviceContext*)device_ref->data;
device_hwctx = device_ctx->hwctx;
device_ctx->user_opaque = device_priv;
device_ctx->free = device_free;
device_hwctx->device = device;
device_hwctx->get_proc_address = get_proc_address;
device_priv = NULL;
ret = av_hwdevice_ctx_init(device_ref);
if (ret < 0)
goto fail;
ctx->hw_frames_ctx = av_hwframe_ctx_alloc(device_ref);
if (!ctx->hw_frames_ctx)
goto fail;
//av_buffer_unref(&device_ref);
frames_ctx = (AVHWFramesContext*)ctx->hw_frames_ctx->data;
frames_ctx->format = AV_PIX_FMT_VDPAU;
frames_ctx->sw_format = s->sw_pix_fmt;
frames_ctx->width = 1920;
frames_ctx->height = 1080;
ret = av_hwframe_ctx_init(ctx->hw_frames_ctx);
if (ret < 0)
goto fail;
if (av_vdpau_bind_context(s, device, get_proc_address, 0))
goto fail;
s->opaque = ctx;
return 0;
fail:
if (device_priv) {
if (device_priv->device_destroy)
device_priv->device_destroy(device);
if (device_priv->dpy)
XCloseDisplay(device_priv->dpy);
}
av_freep(&device_priv);
av_buffer_unref(&device_ref);
vdpau_uninit(s);
return AVERROR(EINVAL);
}
static int Open(vlc_va_t *va, AVCodecContext *avctx, enum PixelFormat pix_fmt,
const es_format_t *fmt, picture_sys_t *p_sys)
{
if (pix_fmt != AV_PIX_FMT_VDPAU)
return VLC_EGENERIC;
(void) fmt;
(void) p_sys;
void *func;
VdpStatus err;
VdpChromaType type;
uint32_t width, height;
if (av_vdpau_get_surface_parameters(avctx, &type, &width, &height))
return VLC_EGENERIC;
switch (type)
{
case VDP_CHROMA_TYPE_420:
case VDP_CHROMA_TYPE_422:
case VDP_CHROMA_TYPE_444:
break;
default:
msg_Err(va, "unsupported chroma type %"PRIu32, type);
return VLC_EGENERIC;
}
if (!vlc_xlib_init(VLC_OBJECT(va)))
{
msg_Err(va, "Xlib is required for VDPAU");
return VLC_EGENERIC;
}
unsigned refs = avctx->refs + 2 * avctx->thread_count + 5;
vlc_va_sys_t *sys = malloc(sizeof (*sys)
+ (refs + 1) * sizeof (sys->pool[0]));
if (unlikely(sys == NULL))
return VLC_ENOMEM;
sys->type = type;
sys->width = width;
sys->height = height;
err = vdp_get_x11(NULL, -1, &sys->vdp, &sys->device);
if (err != VDP_STATUS_OK)
{
free(sys);
return VLC_EGENERIC;
}
unsigned flags = AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH;
err = vdp_get_proc_address(sys->vdp, sys->device,
VDP_FUNC_ID_GET_PROC_ADDRESS, &func);
if (err != VDP_STATUS_OK)
goto error;
if (av_vdpau_bind_context(avctx, sys->device, func, flags))
goto error;
va->sys = sys;
unsigned i = 0;
while (i < refs)
{
sys->pool[i] = CreateSurface(va);
if (sys->pool[i] == NULL)
break;
i++;
}
sys->pool[i] = NULL;
if (i < avctx->refs + 3u)
{
msg_Err(va, "not enough video RAM");
while (i > 0)
DestroySurface(sys->pool[--i]);
goto error;
}
if (i < refs)
msg_Warn(va, "video RAM low (allocated %u of %u buffers)",
i, refs);
const char *infos;
if (vdp_get_information_string(sys->vdp, &infos) != VDP_STATUS_OK)
infos = "VDPAU";
va->description = infos;
va->get = Lock;
va->release = NULL;
va->extract = Copy;
return VLC_SUCCESS;
error:
vdp_release_x11(sys->vdp);
free(sys);
return VLC_EGENERIC;
}
