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#ifndef MPV_LAVC_H
#define MPV_LAVC_H
#include <stdbool.h>
#include <pthread.h>
#include <libavcodec/avcodec.h>
#include "config.h"
#include "demux/stheader.h"
#include "video/mp_image.h"
#include "video/mp_image_pool.h"
#include "video/hwdec.h"
#define HWDEC_DELAY_QUEUE_COUNT 2
// Maximum number of surfaces the player wants to buffer.
// This number might require adjustment depending on whatever the player does;
// for example, if vo_opengl increases the number of reference surfaces for
// interpolation, this value has to be increased too.
#define HWDEC_EXTRA_SURFACES 6
struct mpv_global;
typedef struct lavc_ctx {
struct mp_log *log;
struct MPOpts *opts;
AVCodecContext *avctx;
AVFrame *pic;
struct vd_lavc_hwdec *hwdec;
AVRational codec_timebase;
enum AVPixelFormat pix_fmt;
enum AVDiscard skip_frame;
bool flushing;
const char *decoder;
bool hwdec_failed;
bool hwdec_notified;
bool intra_only;
int framedrop_flags;
// For HDR side-data caching
float cached_sig_peak;
bool hw_probing;
struct demux_packet **sent_packets;
int num_sent_packets;
struct demux_packet **requeue_packets;
int num_requeue_packets;
struct mp_image **delay_queue;
int num_delay_queue;
int max_delay_queue;
// From VO
struct mp_hwdec_devices *hwdec_devs;
// For free use by hwdec implementation
void *hwdec_priv;
// Set by generic hwaccels.
struct mp_hwdec_ctx *hwdec_dev;
bool owns_hwdec_dev;
int hwdec_fmt;
int hwdec_w;
int hwdec_h;
int hwdec_profile;
bool hwdec_request_reinit;
int hwdec_fail_count;
struct mp_image_pool *hwdec_swpool;
AVBufferRef *cached_hw_frames_ctx;
// --- The following fields are protected by dr_lock.
pthread_mutex_t dr_lock;
bool dr_failed;
struct mp_image_pool *dr_pool;
int dr_imgfmt, dr_w, dr_h, dr_stride_align;
} vd_ffmpeg_ctx;
struct vd_lavc_hwdec {
enum hwdec_type type;
// If non-0, get this hwdec type from the VO (for the AVHWDeviceContext).
enum hwdec_type interop_type;
// If true, create a AVHWDeviceContext with default parameters. In this
// case, create_standalone_dev_type is set to a valid value.
bool create_standalone_dev;
enum AVHWDeviceType create_standalone_dev_type;
// If not-0: the IMGFMT_ format that should be accepted in the libavcodec
// get_format callback.
int image_format;
// Always returns a non-hwaccel image format.
bool copying;
// Setting this will queue the given number of frames before calling
// process_image() or returning them to the renderer. This can increase
// efficiency by not blocking on the hardware pipeline by reading back
// immediately after decoding.
int delay_queue;
// If true, AVCodecContext will destroy the underlying decoder.
bool volatile_context;
int (*probe)(struct lavc_ctx *ctx, struct vd_lavc_hwdec *hwdec,
const char *codec);
int (*init)(struct lavc_ctx *ctx);
int (*init_decoder)(struct lavc_ctx *ctx, int w, int h);
void (*uninit)(struct lavc_ctx *ctx);
// Note: if init_decoder is set, this will always use the values from the
// last successful init_decoder call. Otherwise, it's up to you.
struct mp_image *(*allocate_image)(struct lavc_ctx *ctx, int w, int h);
// Process the image returned by the libavcodec decoder.
struct mp_image *(*process_image)(struct lavc_ctx *ctx, struct mp_image *img);
// For copy hwdecs. If probing is true, don't log errors if unavailable.
// The returned device will be freed with mp_hwdec_ctx->destroy.
struct mp_hwdec_ctx *(*create_dev)(struct mpv_global *global,
struct mp_log *log, bool probing);
// Optional. Fill in special hwaccel- and codec-specific requirements.
void (*hwframes_refine)(struct lavc_ctx *ctx, AVBufferRef *hw_frames_ctx);
// Suffix for libavcodec decoder. If non-NULL, the codec is overridden
// with hwdec_find_decoder.
// Intuitively, this will force the corresponding wrapper decoder.
const char *lavc_suffix;
// Generic hwaccels set AVCodecContext.hw_frames_ctx in get_format().
bool generic_hwaccel;
// If set, AVCodecContext.hw_frames_ctx will be initialized in get_format,
// and pixfmt_map must be non-NULL.
bool set_hwframes;
// Array of pixfmt pairs. The first pixfmt is the AVCodecContext.sw_pix_fmt,
// the second the required AVHWFramesContext.sw_format.
const enum AVPixelFormat (*pixfmt_map)[2];
// The generic hwaccel has a fixed pool size. Enough surfaces need to be
// preallocated before decoding begins. If false, pool size is left to 0.
bool static_pool;
};
enum {
HWDEC_ERR_NO_CTX = -2,
HWDEC_ERR_NO_CODEC = -3,
HWDEC_ERR_EMULATED = -4, // probing successful, but emulated API detected
};
struct hwdec_profile_entry {
enum AVCodecID av_codec;
int ff_profile;
uint64_t hw_profile;
};
int hwdec_get_max_refs(struct lavc_ctx *ctx);
int hwdec_setup_hw_frames_ctx(struct lavc_ctx *ctx, AVBufferRef *device_ctx,
int av_sw_format, int initial_pool_size);
#endif
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