mirror of https://github.com/mpv-player/mpv
127 lines
4.0 KiB
C
127 lines
4.0 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 <pthread.h>
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#include <libavcodec/avcodec.h>
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#include <libavutil/hwcontext.h>
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#include "config.h"
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#include "demux/stheader.h"
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#include "video/mp_image.h"
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#include "video/mp_image_pool.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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#define HWDEC_EXTRA_SURFACES 6
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struct mpv_global;
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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 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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bool intra_only;
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int framedrop_flags;
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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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// Set by generic hwaccels.
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struct mp_hwdec_ctx *hwdec_dev;
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bool owns_hwdec_dev;
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bool hwdec_request_reinit;
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int hwdec_fail_count;
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struct mp_image_pool *hwdec_swpool;
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AVBufferRef *cached_hw_frames_ctx;
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// --- The following fields are protected by dr_lock.
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pthread_mutex_t dr_lock;
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bool dr_failed;
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struct mp_image_pool *dr_pool;
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int dr_imgfmt, dr_w, dr_h, dr_stride_align;
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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 non-0, get this hwdec type from the VO (for the AVHWDeviceContext).
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enum hwdec_type interop_type;
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// If true, create a AVHWDeviceContext with default parameters. In this
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// case, create_standalone_dev_type is set to a valid value.
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bool create_standalone_dev;
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enum AVHWDeviceType create_standalone_dev_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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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);
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void (*uninit)(struct lavc_ctx *ctx);
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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 copy hwdecs. If probing is true, don't log errors if unavailable.
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// The returned device will be freed with mp_hwdec_ctx->destroy.
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struct mp_hwdec_ctx *(*create_dev)(struct mpv_global *global,
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struct mp_log *log, bool probing);
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// Optional. Fill in special hwaccel- and codec-specific requirements.
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void (*hwframes_refine)(struct lavc_ctx *ctx, AVBufferRef *hw_frames_ctx);
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// Suffix for libavcodec decoder. If non-NULL, the 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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// Generic hwaccels set AVCodecContext.hw_frames_ctx in get_format().
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bool generic_hwaccel;
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// If set, AVCodecContext.hw_frames_ctx will be initialized in get_format,
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// and pixfmt_map must be non-NULL.
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bool set_hwframes;
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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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#endif
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