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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 General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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/vdpau.h"
#include "video/hwdec.h"
struct priv {
struct mp_log *log;
struct mp_vdpau_ctx *mpvdp;
uint64_t preemption_counter;
};
static int init_decoder(struct lavc_ctx *ctx, int fmt, 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 fmt,
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 void uninit(struct lavc_ctx *ctx)
{
struct priv *p = ctx->hwdec_priv;
talloc_free(p);
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 = ctx->hwdec_info->hwctx->vdpau_ctx,
};
ctx->hwdec_priv = p;
if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) < 1)
goto error;
return 0;
error:
uninit(ctx);
return -1;
}
static int probe(struct vd_lavc_hwdec *hwdec, struct mp_hwdec_info *info,
const char *decoder)
{
hwdec_request_api(info, "vdpau");
if (!info || !info->hwctx || !info->hwctx->vdpau_ctx)
return HWDEC_ERR_NO_CTX;
if (mp_vdpau_guess_if_emulated(info->hwctx->vdpau_ctx))
return HWDEC_ERR_EMULATED;
return 0;
}
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,
};
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