mirror of https://github.com/mpv-player/mpv
122 lines
3.8 KiB
C
122 lines
3.8 KiB
C
#ifndef MPV_LAVC_H
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#define MPV_LAVC_H
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#include <stdbool.h>
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#include <libavcodec/avcodec.h>
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#include "demux/stheader.h"
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#include "video/mp_image.h"
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#include "video/hwdec.h"
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#define HWDEC_DELAY_QUEUE_COUNT 2
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// Maximum number of surfaces the player wants to buffer.
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// This number might require adjustment depending on whatever the player does;
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// for example, if vo_opengl increases the number of reference surfaces for
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// interpolation, this value has to be increased too.
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// This value does not yet include HWDEC_DELAY_QUEUE_COUNT.
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#define HWDEC_EXTRA_SURFACES 4
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typedef struct lavc_ctx {
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struct mp_log *log;
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struct MPOpts *opts;
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AVCodecContext *avctx;
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AVFrame *pic;
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struct vd_lavc_hwdec *hwdec;
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AVRational codec_timebase;
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enum AVPixelFormat pix_fmt;
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enum AVDiscard skip_frame;
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bool flushing;
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const char *decoder;
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bool hwdec_failed;
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bool hwdec_notified;
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int framedrop_flags;
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// For HDR side-data caching
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double cached_hdr_peak;
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bool hw_probing;
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struct demux_packet **sent_packets;
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int num_sent_packets;
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struct demux_packet **requeue_packets;
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int num_requeue_packets;
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struct mp_image **delay_queue;
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int num_delay_queue;
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int max_delay_queue;
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// From VO
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struct mp_hwdec_devices *hwdec_devs;
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// For free use by hwdec implementation
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void *hwdec_priv;
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int hwdec_fmt;
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int hwdec_w;
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int hwdec_h;
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int hwdec_profile;
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bool hwdec_request_reinit;
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int hwdec_fail_count;
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} vd_ffmpeg_ctx;
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struct vd_lavc_hwdec {
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enum hwdec_type type;
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// If not-0: the IMGFMT_ format that should be accepted in the libavcodec
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// get_format callback.
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int image_format;
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// Always returns a non-hwaccel image format.
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bool copying;
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// Setting this will queue the given number of frames before calling
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// process_image() or returning them to the renderer. This can increase
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// efficiency by not blocking on the hardware pipeline by reading back
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// immediately after decoding.
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int delay_queue;
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// If true, AVCodecContext will destroy the underlying decoder.
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bool volatile_context;
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int (*probe)(struct lavc_ctx *ctx, struct vd_lavc_hwdec *hwdec,
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const char *codec);
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int (*init)(struct lavc_ctx *ctx);
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int (*init_decoder)(struct lavc_ctx *ctx, int w, int h);
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void (*uninit)(struct lavc_ctx *ctx);
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// Note: if init_decoder is set, this will always use the values from the
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// last successful init_decoder call. Otherwise, it's up to you.
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struct mp_image *(*allocate_image)(struct lavc_ctx *ctx, int w, int h);
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// Process the image returned by the libavcodec decoder.
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struct mp_image *(*process_image)(struct lavc_ctx *ctx, struct mp_image *img);
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// For horrible Intel shit-drivers only
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void (*lock)(struct lavc_ctx *ctx);
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void (*unlock)(struct lavc_ctx *ctx);
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// Optional; if a special hardware decoder is needed (instead of "hwaccel").
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const char *(*get_codec)(struct lavc_ctx *ctx, const char *codec);
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// Suffix for libavcodec decoder. If non-NULL, get_codec() is overridden
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// with hwdec_find_decoder.
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// Intuitively, this will force the corresponding wrapper decoder.
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const char *lavc_suffix;
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};
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enum {
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HWDEC_ERR_NO_CTX = -2,
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HWDEC_ERR_NO_CODEC = -3,
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HWDEC_ERR_EMULATED = -4, // probing successful, but emulated API detected
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};
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struct hwdec_profile_entry {
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enum AVCodecID av_codec;
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int ff_profile;
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uint64_t hw_profile;
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};
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const struct hwdec_profile_entry *hwdec_find_profile(
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struct lavc_ctx *ctx, const struct hwdec_profile_entry *table);
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bool hwdec_check_codec_support(const char *codec,
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const struct hwdec_profile_entry *table);
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int hwdec_get_max_refs(struct lavc_ctx *ctx);
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const char *hwdec_find_decoder(const char *codec, const char *suffix);
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#endif
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