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/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libavcodec/avcodec.h>
#include <libavcodec/vdpau.h>
#include <libavutil/common.h>
#include "lavc.h"
#include "common/common.h"
#include "video/mp_image_pool.h"
#include "video/vdpau.h"
#include "video/hwdec.h"
struct priv {
struct mp_log *log;
struct mp_vdpau_ctx *mpvdp;
uint64_t preemption_counter;
// vdpau-copy
Display *display;
struct mp_image_pool *sw_pool;
};
static int init_decoder(struct lavc_ctx *ctx, int w, int h)
{
struct priv *p = ctx->hwdec_priv;
// During preemption, pretend everything is ok.
if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) < 0)
return 0;
return av_vdpau_bind_context(ctx->avctx, p->mpvdp->vdp_device,
p->mpvdp->get_proc_address,
AV_HWACCEL_FLAG_IGNORE_LEVEL |
AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH);
}
static struct mp_image *allocate_image(struct lavc_ctx *ctx, int w, int h)
{
struct priv *p = ctx->hwdec_priv;
// In case of preemption, reinit the decoder. Setting hwdec_request_reinit
// will cause init_decoder() to be called again.
if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) == 0)
ctx->hwdec_request_reinit = true;
VdpChromaType chroma = 0;
uint32_t s_w = w, s_h = h;
if (av_vdpau_get_surface_parameters(ctx->avctx, &chroma, &s_w, &s_h) < 0)
return NULL;
return mp_vdpau_get_video_surface(p->mpvdp, chroma, s_w, s_h);
}
static struct mp_image *update_format(struct lavc_ctx *ctx, struct mp_image *img)
{
VdpChromaType chroma = 0;
uint32_t s_w, s_h;
if (av_vdpau_get_surface_parameters(ctx->avctx, &chroma, &s_w, &s_h) >= 0) {
if (chroma == VDP_CHROMA_TYPE_420)
img->params.hw_subfmt = IMGFMT_NV12;
}
return img;
}
static void uninit(struct lavc_ctx *ctx)
{
struct priv *p = ctx->hwdec_priv;
if (p->display) {
// for copy path: we own this stuff
mp_vdpau_destroy(p->mpvdp);
XCloseDisplay(p->display);
}
TA_FREEP(&ctx->hwdec_priv);
if (ctx->avctx)
av_freep(&ctx->avctx->hwaccel_context);
}
static int init(struct lavc_ctx *ctx)
{
struct priv *p = talloc_ptrtype(NULL, p);
*p = (struct priv) {
.log = mp_log_new(p, ctx->log, "vdpau"),
.mpvdp = hwdec_devices_get(ctx->hwdec_devs, HWDEC_VDPAU)->ctx,
};
ctx->hwdec_priv = p;
mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter);
return 0;
}
static int probe(struct lavc_ctx *ctx, struct vd_lavc_hwdec *hwdec,
const char *codec)
{
if (!hwdec_devices_load(ctx->hwdec_devs, HWDEC_VDPAU))
return HWDEC_ERR_NO_CTX;
return 0;
}
static int init_copy(struct lavc_ctx *ctx)
{
struct priv *p = talloc_ptrtype(NULL, p);
*p = (struct priv) {
.log = mp_log_new(p, ctx->log, "vdpau"),
};
p->display = XOpenDisplay(NULL);
if (!p->display)
goto error;
p->mpvdp = mp_vdpau_create_device_x11(p->log, p->display, true);
if (!p->mpvdp)
goto error;
p->sw_pool = talloc_steal(p, mp_image_pool_new(17));
ctx->hwdec_priv = p;
mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter);
return 0;
error:
if (p->display)
XCloseDisplay(p->display);
talloc_free(p);
return -1;
}
static int probe_copy(struct lavc_ctx *ctx, struct vd_lavc_hwdec *hwdec,
const char *codec)
{
assert(!ctx->hwdec_priv);
int r = HWDEC_ERR_NO_CTX;
if (init_copy(ctx) >=0 ) {
struct priv *p = ctx->hwdec_priv;
r = mp_vdpau_guess_if_emulated(p->mpvdp) ? HWDEC_ERR_EMULATED : 0;
uninit(ctx);
}
return r;
}
static struct mp_image *copy_image(struct lavc_ctx *ctx, struct mp_image *img)
{
struct priv *p = ctx->hwdec_priv;
struct mp_hwdec_ctx *hwctx = &p->mpvdp->hwctx;
struct mp_image *out = hwctx->download_image(hwctx, img, p->sw_pool);
talloc_free(img);
return out;
}
const struct vd_lavc_hwdec mp_vd_lavc_vdpau = {
.type = HWDEC_VDPAU,
.image_format = IMGFMT_VDPAU,
.probe = probe,
.init = init,
.uninit = uninit,
.init_decoder = init_decoder,
.allocate_image = allocate_image,
.process_image = update_format,
};
const struct vd_lavc_hwdec mp_vd_lavc_vdpau_copy = {
.type = HWDEC_VDPAU_COPY,
.copying = true,
.image_format = IMGFMT_VDPAU,
.probe = probe_copy,
.init = init_copy,
.uninit = uninit,
.init_decoder = init_decoder,
.allocate_image = allocate_image,
.process_image = copy_image,
};
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