mirror of https://github.com/mpv-player/mpv
106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libavcodec/avcodec.h>
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#include <libavcodec/vdpau.h>
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#include <libavutil/common.h>
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#include "lavc.h"
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#include "common/common.h"
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#include "video/vdpau.h"
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#include "video/hwdec.h"
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struct priv {
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struct mp_log *log;
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struct mp_vdpau_ctx *mpvdp;
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uint64_t preemption_counter;
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};
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static int init_decoder(struct lavc_ctx *ctx, int w, int h)
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{
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struct priv *p = ctx->hwdec_priv;
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// During preemption, pretend everything is ok.
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if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) < 0)
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return 0;
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return av_vdpau_bind_context(ctx->avctx, p->mpvdp->vdp_device,
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p->mpvdp->get_proc_address,
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AV_HWACCEL_FLAG_IGNORE_LEVEL |
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AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH);
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}
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static struct mp_image *allocate_image(struct lavc_ctx *ctx, int w, int h)
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{
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struct priv *p = ctx->hwdec_priv;
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// In case of preemption, reinit the decoder. Setting hwdec_request_reinit
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// will cause init_decoder() to be called again.
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if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) == 0)
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ctx->hwdec_request_reinit = true;
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VdpChromaType chroma = 0;
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uint32_t s_w = w, s_h = h;
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if (av_vdpau_get_surface_parameters(ctx->avctx, &chroma, &s_w, &s_h) < 0)
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return NULL;
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return mp_vdpau_get_video_surface(p->mpvdp, chroma, s_w, s_h);
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}
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static void uninit(struct lavc_ctx *ctx)
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{
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struct priv *p = ctx->hwdec_priv;
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talloc_free(p);
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av_freep(&ctx->avctx->hwaccel_context);
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}
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static int init(struct lavc_ctx *ctx)
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{
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struct priv *p = talloc_ptrtype(NULL, p);
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*p = (struct priv) {
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.log = mp_log_new(p, ctx->log, "vdpau"),
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.mpvdp = ctx->hwdec_info->hwctx->vdpau_ctx,
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};
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ctx->hwdec_priv = p;
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mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter);
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return 0;
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}
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static int probe(struct vd_lavc_hwdec *hwdec, struct mp_hwdec_info *info,
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const char *codec)
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{
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hwdec_request_api(info, "vdpau");
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if (!info || !info->hwctx || !info->hwctx->vdpau_ctx)
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return HWDEC_ERR_NO_CTX;
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if (mp_vdpau_guess_if_emulated(info->hwctx->vdpau_ctx))
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return HWDEC_ERR_EMULATED;
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return 0;
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}
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const struct vd_lavc_hwdec mp_vd_lavc_vdpau = {
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.type = HWDEC_VDPAU,
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.image_format = IMGFMT_VDPAU,
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.probe = probe,
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.init = init,
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.uninit = uninit,
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.init_decoder = init_decoder,
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.allocate_image = allocate_image,
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};
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