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🎥 Command line media player
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C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899#ifndef MP_HWDEC_H_#define MP_HWDEC_H_
#include <libavutil/buffer.h>
#include "options/m_option.h"
struct mp_image_pool;
struct mp_hwdec_ctx { const char *driver_name; // NULL if unknown/not loaded
// libavutil-wrapped context, if available. struct AVBufferRef *av_device_ref; // AVHWDeviceContext*
// List of IMGFMT_s, terminated with 0. NULL if N/A. const int *supported_formats; // HW format for which above hw_subfmts are valid. int hw_imgfmt;};
// Used to communicate hardware decoder device handles from VO to video decoder.struct mp_hwdec_devices;
struct mp_hwdec_devices *hwdec_devices_create(void);void hwdec_devices_destroy(struct mp_hwdec_devices *devs);
// Return the device context for the given API type. Returns NULL if none// available. Logically, the returned pointer remains valid until VO// uninitialization is started (all users of it must be uninitialized before).// hwdec_devices_request() may be used before this to lazily load devices.// Contains a wrapped AVHWDeviceContext.// Beware that this creates a _new_ reference.struct AVBufferRef *hwdec_devices_get_lavc(struct mp_hwdec_devices *devs, int av_hwdevice_type);
struct mp_hwdec_ctx *hwdec_devices_get_by_lavc(struct mp_hwdec_devices *devs, int av_hwdevice_type);
// For code which still strictly assumes there is 1 (or none) device.struct mp_hwdec_ctx *hwdec_devices_get_first(struct mp_hwdec_devices *devs);
// Return the n-th device. NULL if none.struct mp_hwdec_ctx *hwdec_devices_get_n(struct mp_hwdec_devices *devs, int n);
// Add this to the list of internal devices. Adding the same pointer twice must// be avoided.void hwdec_devices_add(struct mp_hwdec_devices *devs, struct mp_hwdec_ctx *ctx);
// Remove this from the list of internal devices. Idempotent/ignores entries// not added yet. This is not thread-safe.void hwdec_devices_remove(struct mp_hwdec_devices *devs, struct mp_hwdec_ctx *ctx);
// Can be used to enable lazy loading of an API with hwdec_devices_request().// If used at all, this must be set/unset during initialization/uninitialization,// as concurrent use with hwdec_devices_request() is a race condition.void hwdec_devices_set_loader(struct mp_hwdec_devices *devs, void (*load_api)(void *ctx), void *load_api_ctx);
// Cause VO to lazily load all devices, and will block until this is done (even// if not available).void hwdec_devices_request_all(struct mp_hwdec_devices *devs);
// Return "," concatenated list (for introspection/debugging). Use talloc_free().char *hwdec_devices_get_names(struct mp_hwdec_devices *devs);
struct mp_image;struct mpv_global;
struct hwcontext_create_dev_params { bool probing; // if true, don't log errors if unavailable};
// Per AV_HWDEVICE_TYPE_* functions, queryable via hwdec_get_hwcontext_fns().// All entries are strictly optional.struct hwcontext_fns { int av_hwdevice_type; // Fill in special format-specific requirements. void (*refine_hwframes)(struct AVBufferRef *hw_frames_ctx); // Returns a AVHWDeviceContext*. Used for copy hwdecs. struct AVBufferRef *(*create_dev)(struct mpv_global *global, struct mp_log *log, struct hwcontext_create_dev_params *params); // Return whether this is using some sort of sub-optimal emulation layer. bool (*is_emulated)(struct AVBufferRef *hw_device_ctx);};
// The parameter is of type enum AVHWDeviceType (as in int to avoid extensive// recursive includes). May return NULL for unknown device types.const struct hwcontext_fns *hwdec_get_hwcontext_fns(int av_hwdevice_type);
extern const struct hwcontext_fns hwcontext_fns_cuda;extern const struct hwcontext_fns hwcontext_fns_d3d11;extern const struct hwcontext_fns hwcontext_fns_dxva2;extern const struct hwcontext_fns hwcontext_fns_vaapi;extern const struct hwcontext_fns hwcontext_fns_vdpau;
#endif