capture_filter_wrapper.h

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#ifndef CAPTURE_FILTER_WRAPPER_H_4106D5BE_4B1D_4367_B506_67B358514C50
#define CAPTURE_FILTER_WRAPPER_H_4106D5BE_4B1D_4367_B506_67B358514C50
 
#include <assert.h>
#include <stdint.h>
 
#include "capture_filter.h"
#include "utils/macros.h"
#include "video_display.h"
#include "vo_postprocess.h"
 
#define CFW_MAGIC to_fourcc('V', 'P', 'C', 'F')
 
struct vo_pp_capture_filter_wrapper {
        uint32_t magic;
        void *state;           
        vo_postprocess_get_property_t get_property;
        struct video_frame *f;
};
 
#define CF_WRAPPER_MERGE(a,b)  a##b
 
#define ADD_VO_PP_CAPTURE_FILTER_WRAPPER(name, init, filter, done, set_out_buf, get_prop_callb) \
static void *CF_WRAPPER_MERGE(vo_pp_init_, name)(const char *cfg) {\
        void *state;\
        if (init(NULL, cfg, &state) != 0) {\
                return NULL;\
        }\
        struct vo_pp_capture_filter_wrapper *s = (struct vo_pp_capture_filter_wrapper *) \
                        calloc(1, sizeof(struct vo_pp_capture_filter_wrapper));\
        s->magic = CFW_MAGIC;\
        s->state = state;\
        s->get_property = get_prop_callb;\
        return s;\
}\
\
static bool CF_WRAPPER_MERGE(vo_pp_reconfigure_, name)(void *state, struct video_desc desc) {\
        struct vo_pp_capture_filter_wrapper *s = (struct vo_pp_capture_filter_wrapper *) state;\
        s->f = vf_alloc_desc_data(desc);\
        return true;\
}\
\
static bool CF_WRAPPER_MERGE(vo_pp_get_property_, name)(void *state, int property, void *val, size_t *len) {\
        struct vo_pp_capture_filter_wrapper *s = (struct vo_pp_capture_filter_wrapper *) state;\
        assert(s->magic == CFW_MAGIC);\
        if (s->get_property == 0) {\
                return false;\
        }\
        return s->get_property(s->state, property, val, len);\
}\
static struct video_frame *CF_WRAPPER_MERGE(vo_pp_getf_, name)(void *state) {\
        struct vo_pp_capture_filter_wrapper *s = (struct vo_pp_capture_filter_wrapper *) state;\
        return s->f;\
}\
\
static bool CF_WRAPPER_MERGE(vo_pp_postprocess_, name)(void *state, struct video_frame *in, struct video_frame *out, int req_out_pitch) {\
        struct vo_pp_capture_filter_wrapper *s = (struct vo_pp_capture_filter_wrapper *) state;\
        assert(req_out_pitch == vc_get_linesize(out->tiles[0].width, out->color_spec));\
        set_out_buf(s->state, out->tiles[0].data);\
        struct video_frame *dst = filter(s->state, in);\
        VIDEO_FRAME_DISPOSE(dst);\
        UNUSED(req_out_pitch);\
        return true;\
}\
static void CF_WRAPPER_MERGE(vo_pp_get_out_desc_, name)(void *state, struct video_desc *out, int *in_tile_mode, int *out_frame_count) {\
        struct vo_pp_capture_filter_wrapper *s = (struct vo_pp_capture_filter_wrapper *) state;\
        struct video_frame *tmp_out = filter(s->state, s->f);\
        *out = video_desc_from_frame(tmp_out);\
        VIDEO_FRAME_DISPOSE(tmp_out);\
\
        *in_tile_mode = DISPLAY_PROPERTY_VIDEO_MERGED;\
        *out_frame_count = 1;\
\
        UNUSED(in_tile_mode);\
}\
static void CF_WRAPPER_MERGE(vo_pp_get_out_desc_, done)(void *state) {\
        struct vo_pp_capture_filter_wrapper *s = (struct vo_pp_capture_filter_wrapper *) state;\
        done(s->state);\
        vf_free(s->f);\
        free(s);\
}\
\
static const struct vo_postprocess_info CF_WRAPPER_MERGE(vo_pp_, name) = {\
        CF_WRAPPER_MERGE(vo_pp_init_, name),\
        CF_WRAPPER_MERGE(vo_pp_reconfigure_, name),\
        CF_WRAPPER_MERGE(vo_pp_getf_, name),\
        CF_WRAPPER_MERGE(vo_pp_get_out_desc_, name),\
        CF_WRAPPER_MERGE(vo_pp_get_property_, name),\
        CF_WRAPPER_MERGE(vo_pp_postprocess_, name),\
        CF_WRAPPER_MERGE(vo_pp_get_out_desc_, done)\
};\
REGISTER_MODULE(name, &CF_WRAPPER_MERGE(vo_pp_, name), LIBRARY_CLASS_VIDEO_POSTPROCESS, VO_PP_ABI_VERSION);
 
#endif // defined CAPTURE_FILTER_WRAPPER_H_4106D5BE_4B1D_4367_B506_67B358514C50