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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 <stddef.h>
#include <string.h>
#include <assert.h>
#include <unistd.h>
#include <libavutil/hwcontext.h>
#include <libavutil/hwcontext_videotoolbox.h>
#include "config.h"
#include "video/out/gpu/hwdec.h"
#include "video/out/hwdec/hwdec_vt.h"
static void uninit(struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
hwdec_devices_remove(hw->devs, &p->hwctx);
av_buffer_unref(&p->hwctx.av_device_ref);
}
static const vt_interop_init interop_inits[] = {
#if HAVE_VIDEOTOOLBOX_GL || HAVE_IOS_GL
vt_gl_init,
#endif
#if HAVE_VIDEOTOOLBOX_PL
vt_pl_init,
#endif
NULL
};
static int init(struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
for (int i = 0; interop_inits[i]; i++) {
if (interop_inits[i](hw)) {
break;
}
}
if (!p->interop_map || !p->interop_unmap) {
MP_VERBOSE(hw, "VT hwdec only works with OpenGL or Vulkan backends.\n");
return -1;
}
p->hwctx = (struct mp_hwdec_ctx){
.driver_name = hw->driver->name,
.hw_imgfmt = IMGFMT_VIDEOTOOLBOX,
};
int ret = av_hwdevice_ctx_create(&p->hwctx.av_device_ref,
AV_HWDEVICE_TYPE_VIDEOTOOLBOX, NULL, NULL, 0);
if (ret != 0) {
MP_VERBOSE(hw, "Failed to create hwdevice_ctx: %s\n", av_err2str(ret));
return -1;
}
hwdec_devices_add(hw->devs, &p->hwctx);
return 0;
}
static void mapper_unmap(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
p_owner->interop_unmap(mapper);
}
static void mapper_uninit(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
if (p_owner->interop_uninit) {
p_owner->interop_uninit(mapper);
}
}
static int mapper_init(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
struct priv *p = mapper->priv;
mapper->dst_params = mapper->src_params;
mapper->dst_params.imgfmt = mapper->src_params.hw_subfmt;
mapper->dst_params.hw_subfmt = 0;
if (!mapper->dst_params.imgfmt) {
MP_ERR(mapper, "Unsupported CVPixelBuffer format.\n");
return -1;
}
if (!ra_get_imgfmt_desc(mapper->ra, mapper->dst_params.imgfmt, &p->desc)) {
MP_ERR(mapper, "Unsupported texture format.\n");
return -1;
}
if (p_owner->interop_init)
return p_owner->interop_init(mapper);
return 0;
}
static int mapper_map(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
return p_owner->interop_map(mapper);
}
const struct ra_hwdec_driver ra_hwdec_videotoolbox = {
.name = "videotoolbox",
.priv_size = sizeof(struct priv_owner),
.imgfmts = {IMGFMT_VIDEOTOOLBOX, 0},
.init = init,
.uninit = uninit,
.mapper = &(const struct ra_hwdec_mapper_driver){
.priv_size = sizeof(struct priv),
.init = mapper_init,
.uninit = mapper_uninit,
.map = mapper_map,
.unmap = mapper_unmap,
},
};
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