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#ifndef MP_HWDEC_H_
#define MP_HWDEC_H_
#include "options/m_option.h"
struct mp_image_pool;
// keep in sync with --hwdec option (see mp_hwdec_names)
enum hwdec_type {
HWDEC_AUTO = -1,
HWDEC_NONE = 0,
HWDEC_VDPAU = 1,
HWDEC_VDA = 2,
HWDEC_VIDEOTOOLBOX = 3,
HWDEC_VAAPI = 4,
HWDEC_VAAPI_COPY = 5,
HWDEC_DXVA2_COPY = 6,
HWDEC_RPI = 7,
};
// hwdec_type names (options.c)
extern const struct m_opt_choice_alternatives mp_hwdec_names[];
struct mp_hwdec_ctx {
enum hwdec_type type;
void *priv; // for free use by hwdec implementation
// API-specific, not needed by all backends.
struct mp_vdpau_ctx *vdpau_ctx;
struct mp_vaapi_ctx *vaapi_ctx;
struct mp_d3d_ctx *d3d_ctx;
// Optional.
// Allocates a software image from the pool, downloads the hw image from
// mpi, and returns it.
// pool can be NULL (then just use straight allocation).
// Return NULL on error or if mpi has the wrong format.
struct mp_image *(*download_image)(struct mp_hwdec_ctx *ctx,
struct mp_image *mpi,
struct mp_image_pool *swpool);
};
// Used to communicate hardware decoder API handles from VO to video decoder.
// The VO can set the context pointer for supported APIs.
struct mp_hwdec_info {
// (Since currently only 1 hwdec API is loaded at a time, this pointer
// simply maps to the loaded one.)
struct mp_hwdec_ctx *hwctx;
// Can be used to lazily load a requested API.
// api_name is e.g. "vdpau" (like the fields above, without "_ctx")
// Can be NULL, is idempotent, caller checks hwctx fields for success/access.
// Due to threading, the callback is the only code that is allowed to
// change fields in this struct after initialization.
void (*load_api)(struct mp_hwdec_info *info, const char *api_name);
void *load_api_ctx;
};
// Trivial helper to call info->load_api().
// Implemented in vd_lavc.c.
void hwdec_request_api(struct mp_hwdec_info *info, const char *api_name);
#endif
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