vo_postprocess.h

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 * Copyright (c) 2011-2023 CESNET, z. s. p. o.
 * All rights reserved.
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 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted provided that the following conditions
 * are met:
 *
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 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
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 *
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 *    used to endorse or promote products derived from this software without
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 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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 * EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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 */
#ifndef __vo_postprocess_h
 
#define __vo_postprocess_h
 
#include "types.h"
 
#ifdef __cplusplus
extern "C" {
#else
#include <stdbool.h>
#endif
 
/*          property                               type                   default          */
#define VO_PP_PROPERTY_CODECS                0 /*  codec_t[]          all uncompressed     */
#define VO_PP_DOES_CHANGE_TILING_MODE        1 /*  bool                    false           */
 
#define VO_PP_ABI_VERSION 7
 
struct vo_postprocess_state;
 
typedef  void *(*vo_postprocess_init_t)(const char *cfg);
 
typedef  bool (*vo_postprocess_reconfigure_t)(void *state, struct video_desc desc);
typedef  struct video_frame * (*vo_postprocess_getf_t)(void *state);
/*
 * Returns various information about postprocessor format not only output (legacy name).
 *
 * @param s                        postprocessor state
 * @param out                      output video description according to input parameters
 * @param in_display_mode          some postprocessors change tiling mode (this is queryied by get_property
 *                                 function). If postprocessor does not report that it changes tiling mode,
 *                                 this parameter should be ignored.
 * @param out_frame_count          Because the postprocess function is called synchronously, in case that 
 *                                 from one input frame is generated more, this sets how many can be generated
 *                                 at maximum.
 */
typedef void (*vo_postprocess_get_out_desc_t)(void *s, struct video_desc *out, int *in_tile_mode, int *out_frame_count);
 
typedef bool (*vo_postprocess_get_property_t)(void *state, int property, void *val, size_t *len);
 
typedef bool (*vo_postprocess_t)(void *state, struct video_frame *in, struct video_frame *out, int req_out_pitch);
 
typedef  void (*vo_postprocess_done_t)(void *);
 
 
struct vo_postprocess_info {
        vo_postprocess_init_t init;
        vo_postprocess_reconfigure_t reconfigure;
        vo_postprocess_getf_t getf;
        vo_postprocess_get_out_desc_t get_out_desc;
        vo_postprocess_get_property_t get_property;
        vo_postprocess_t vo_postprocess;
        vo_postprocess_done_t done;
};
 
struct vo_postprocess_state *vo_postprocess_init(const char *config_string);
 
bool vo_postprocess_reconfigure(struct vo_postprocess_state *, struct video_desc);
struct video_frame * vo_postprocess_getf(struct vo_postprocess_state *);
void vo_postprocess_get_out_desc(struct vo_postprocess_state *, struct video_desc *out, int *display_mode, int *out_frames_count);
bool vo_postprocess_get_property(struct vo_postprocess_state *, int property, void *val, size_t *len);
 
bool vo_postprocess(struct vo_postprocess_state *, struct video_frame*, struct video_frame*, int req_pitch);
void vo_postprocess_done(struct vo_postprocess_state *s);
 
void show_vo_postprocess_help(bool full);
 
#ifdef __cplusplus
}
#endif
 
#endif /* __vo_postprocess_h */