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mpv/video/decode/lavc.h
wm4 ccce58d6d6 video: initialize hw decoder in get_format
Apparently the "right" place to initialize the hardware decoder is in
the libavcodec get_format callback.

This doesn't change vda.c and vdpau_old.c, because I don't have OSX, and
vdpau_old.c is probably going to be removed soon (if Libav ever manages
to release Libav 10). So for now the init_decoder callback added with
this commit is optional.

This also means vdpau.c and vaapi.c don't have to manage and check the
image parameters anymore.

This change is probably needed for when libavcodec VDA supports gets a
new iteration of its API.
2014-03-10 22:56:26 +01:00

103 lines
3.1 KiB
C

#ifndef MPV_LAVC_H
#define MPV_LAVC_H
#include <stdbool.h>
#include <libavcodec/avcodec.h>
#include "demux/stheader.h"
#include "video/mp_image.h"
#include "video/hwdec.h"
// keep in sync with --hwdec option
enum hwdec_type {
HWDEC_AUTO = -1,
HWDEC_NONE = 0,
HWDEC_VDPAU = 1,
HWDEC_VDA = 2,
HWDEC_CRYSTALHD = 3,
HWDEC_VAAPI = 4,
HWDEC_VAAPI_COPY = 5,
};
typedef struct lavc_ctx {
struct mp_log *log;
struct MPOpts *opts;
AVCodecContext *avctx;
AVFrame *pic;
struct vd_lavc_hwdec *hwdec;
enum AVPixelFormat pix_fmt;
int do_hw_dr1;
int best_csp;
enum AVDiscard skip_frame;
const char *software_fallback_decoder;
// From VO
struct mp_hwdec_info *hwdec_info;
// For free use by hwdec implementation
void *hwdec_priv;
int hwdec_fmt;
int hwdec_w;
int hwdec_h;
// Legacy
bool do_dr1;
struct FramePool *dr1_buffer_pool;
struct mp_image_pool *non_dr1_pool;
} vd_ffmpeg_ctx;
struct vd_lavc_hwdec {
enum hwdec_type type;
// If non-NULL: lists pairs software and hardware decoders. If the current
// codec is not one of the listed software decoders, probing fails.
// Otherwise, the AVCodecContext is initialized with the associated
// hardware decoder.
// Useful only if hw decoding requires a special codec, instead of using
// the libavcodec hwaccel infrastructure.
const char **codec_pairs;
// If not-NULL: a 0 terminated list of IMGFMT_ formats, and only one of
// these formats is accepted in the libavcodec get_format callback.
const int *image_formats;
int (*probe)(struct vd_lavc_hwdec *hwdec, struct mp_hwdec_info *info,
const char *decoder);
int (*init)(struct lavc_ctx *ctx);
int (*init_decoder)(struct lavc_ctx *ctx, int fmt, 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 fmt,
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);
};
enum {
HWDEC_ERR_NO_CTX = -2,
HWDEC_ERR_NO_CODEC = -3,
};
struct hwdec_profile_entry {
enum AVCodecID av_codec;
int ff_profile;
uint64_t hw_profile;
};
const struct hwdec_profile_entry *hwdec_find_profile(
struct lavc_ctx *ctx, const struct hwdec_profile_entry *table);
bool hwdec_check_codec_support(const char *decoder,
const struct hwdec_profile_entry *table);
int hwdec_get_max_refs(struct lavc_ctx *ctx);
// lavc_dr1.c
int mp_codec_get_buffer(AVCodecContext *s, AVFrame *frame);
void mp_codec_release_buffer(AVCodecContext *s, AVFrame *frame);
struct FrameBuffer;
void mp_buffer_ref(struct FrameBuffer *buffer);
void mp_buffer_unref(struct FrameBuffer *buffer);
bool mp_buffer_is_unique(struct FrameBuffer *buffer);
void mp_buffer_pool_free(struct FramePool **pool);
#endif