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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 <stddef.h>
#include <assert.h>
#include <libavcodec/avcodec.h>
#include <libavcodec/vdpau.h>
#include <libavutil/common.h>
#include "config.h"
#include "lavc.h"
#include "common/common.h"
#include "common/av_common.h"
#include "video/fmt-conversion.h"
#include "video/vdpau.h"
#include "video/hwdec.h"
struct priv {
struct mp_log *log;
struct mp_vdpau_ctx *mpvdp;
struct vdp_functions *vdp;
uint64_t preemption_counter;
int fmt, w, h;
AVVDPAUContext *context;
};
#define PE(av_codec_id, ff_profile, vdp_profile) \
{AV_CODEC_ID_ ## av_codec_id, FF_PROFILE_ ## ff_profile, \
VDP_DECODER_PROFILE_ ## vdp_profile}
static const struct hwdec_profile_entry profiles[] = {
PE(MPEG1VIDEO, UNKNOWN, MPEG1),
PE(MPEG2VIDEO, MPEG2_MAIN, MPEG2_MAIN),
PE(MPEG2VIDEO, MPEG2_SIMPLE, MPEG2_SIMPLE),
PE(MPEG4, MPEG4_ADVANCED_SIMPLE, MPEG4_PART2_ASP),
PE(MPEG4, MPEG4_SIMPLE, MPEG4_PART2_SP),
PE(H264, H264_HIGH, H264_HIGH),
PE(H264, H264_MAIN, H264_MAIN),
PE(H264, H264_BASELINE, H264_BASELINE),
PE(VC1, VC1_ADVANCED, VC1_ADVANCED),
PE(VC1, VC1_MAIN, VC1_MAIN),
PE(VC1, VC1_SIMPLE, VC1_SIMPLE),
PE(WMV3, VC1_ADVANCED, VC1_ADVANCED),
PE(WMV3, VC1_MAIN, VC1_MAIN),
PE(WMV3, VC1_SIMPLE, VC1_SIMPLE),
{0}
};
static int init_decoder(struct lavc_ctx *ctx, int fmt, int w, int h)
{
struct priv *p = ctx->hwdec_priv;
struct vdp_functions *vdp = &p->mpvdp->vdp;
VdpDevice vdp_device = p->mpvdp->vdp_device;
VdpStatus vdp_st;
p->fmt = fmt;
p->w = w;
p->h = h;
// During preemption, pretend everything is ok.
if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) < 0)
return 0;
if (p->context->decoder != VDP_INVALID_HANDLE)
vdp->decoder_destroy(p->context->decoder);
const struct hwdec_profile_entry *pe = hwdec_find_profile(ctx, profiles);
if (!pe) {
MP_ERR(p, "Unsupported codec or profile.\n");
goto fail;
}
VdpBool supported;
uint32_t maxl, maxm, maxw, maxh;
vdp_st = vdp->decoder_query_capabilities(vdp_device, pe->hw_profile,
&supported, &maxl, &maxm,
&maxw, &maxh);
CHECK_VDP_WARNING(p, "Querying VDPAU decoder capabilities");
if (!supported) {
MP_ERR(p, "Codec or profile not supported by hardware.\n");
goto fail;
}
if (w > maxw || h > maxh) {
MP_ERR(p, "Video resolution(%dx%d) is larger than the maximum size(%dx%d) supported.\n",
w, h, maxw, maxh);
goto fail;
}
int maxrefs = hwdec_get_max_refs(ctx);
vdp_st = vdp->decoder_create(vdp_device, pe->hw_profile, w, h, maxrefs,
&p->context->decoder);
CHECK_VDP_WARNING(p, "Failed creating VDPAU decoder");
if (vdp_st != VDP_STATUS_OK)
goto fail;
return 0;
fail:
p->context->decoder = VDP_INVALID_HANDLE;
return -1;
}
static struct mp_image *allocate_image(struct lavc_ctx *ctx, int fmt,
int w, int h)
{
struct priv *p = ctx->hwdec_priv;
if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) == 0) {
if (init_decoder(ctx, p->fmt, p->w, p->h) < 0)
return NULL;
}
VdpChromaType chroma;
mp_vdpau_get_format(IMGFMT_VDPAU, &chroma, NULL);
return mp_vdpau_get_video_surface(p->mpvdp, chroma, w, h);
}
static void uninit(struct lavc_ctx *ctx)
{
struct priv *p = ctx->hwdec_priv;
if (!p)
return;
if (p->context && p->context->decoder != VDP_INVALID_HANDLE)
p->vdp->decoder_destroy(p->context->decoder);
av_free(p->context);
talloc_free(p);
ctx->hwdec_priv = NULL;
}
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;
p->context = av_vdpau_alloc_context();
if (!p->context)
goto error;
p->vdp = &p->mpvdp->vdp;
p->context->render = p->vdp->decoder_render;
p->context->decoder = VDP_INVALID_HANDLE;
if (mp_vdpau_handle_preemption(p->mpvdp, &p->preemption_counter) < 1)
goto error;
ctx->avctx->hwaccel_context = p->context;
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 (!hwdec_check_codec_support(decoder, profiles))
return HWDEC_ERR_NO_CODEC;
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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