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mpv/video/decode/lavc.h
wm4 8fe4790ec8 video: redo hw decoding initialization, add --hwdec=auto
Change how the HW decoding stuff is organized, the way it's initialized
in particular. Instead of duplicating the list of supported codecs for
hwaccel decoders, add a probe function which allows each decoder to
report whether it supports a given codec.

Add an "auto" choice to the --hwdec option, which automatically enables
hardware decoding if libavcodec and/or the VO supports it.

What mpv prints on the terminal changes a bit. Now it will just print
a single line whether hw decoding is used or not (and nothing at all if
no hw decoding at all was requested). The pretty violent fallback from
hw decoding to software decoding is still quite verbose and evil-looking
though.
2013-08-11 23:59:18 +02:00

82 lines
2.3 KiB
C

#ifndef MPV_LAVC_H
#define MPV_LAVC_H
#include <stdbool.h>
#include <libavcodec/avcodec.h>
#include "config.h"
#include "demux/stheader.h"
#include "video/mp_image.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,
};
typedef struct lavc_ctx {
AVCodecContext *avctx;
AVFrame *pic;
struct vd_lavc_hwdec *hwdec;
enum PixelFormat pix_fmt;
int do_hw_dr1;
int vo_initialized;
int best_csp;
struct mp_image_params image_params;
AVRational last_sample_aspect_ratio;
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;
// 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);
void (*uninit)(struct lavc_ctx *ctx);
struct mp_image *(*allocate_image)(struct lavc_ctx *ctx, AVFrame *frame);
void (*fix_image)(struct lavc_ctx *ctx, struct mp_image *img);
};
enum {
HWDEC_ERR_NO_CTX = -2,
HWDEC_ERR_NO_CODEC = -3,
};
// 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