1 files changed, 141 insertions, 0 deletions
diff --git a/video/out/hwdec/hwdec_vt.c b/video/out/hwdec/hwdec_vt.c
new file mode 100644
index 0000000000..643ff9043f
--- /dev/null
+++ b/video/out/hwdec/hwdec_vt.c
@@ -0,0 +1,141 @@
+/*
+ * 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,
+    },
+};