null.c File Reference

#include "config.h"
#include "config_unix.h"
#include "config_win32.h"
#include "debug.h"
#include "lib_common.h"
#include "video.h"
#include "video_capture.h"

Include dependency graph for null.c:

Go to the source code of this file.

Functions
	REGISTER_HIDDEN_MODULE (none, &vidcap_null_info, LIBRARY_CLASS_VIDEO_CAPTURE, VIDEO_CAPTURE_ABI_VERSION)
static void	vidcap_null_done (void *state)
static struct video_frame *	vidcap_null_grab (void *state, struct audio_frame **audio)
static int	vidcap_null_init (struct vidcap_params *params, void **state)
static void	vidcap_null_probe (struct device_info **available_cards, int *count, void(**deleter)(void *))

Variables
static int	capture_state = 0
static const struct video_capture_info	vidcap_null_info

Function Documentation

REGISTER_HIDDEN_MODULE()

REGISTER_HIDDEN_MODULE	(	none	,
		&	vidcap_null_info,
		LIBRARY_CLASS_VIDEO_CAPTURE	,
		VIDEO_CAPTURE_ABI_VERSION	)

vidcap_null_done()

static void vidcap_null_done ( void * state )

static

Definition at line 72 of file null.c.

{
        assert(state == &capture_state);
}

References capture_state, and state.

vidcap_null_grab()

static struct video_frame * vidcap_null_grab ( void * state, struct audio_frame ** audio )

static

Definition at line 77 of file null.c.

{
        assert(state == &capture_state);
        *audio = NULL;
        return NULL;
}

References audio, capture_state, and state.

vidcap_null_init()

static int vidcap_null_init ( struct vidcap_params * params, void ** state )

static

Definition at line 62 of file null.c.

{
        if (vidcap_params_get_flags(params) & VIDCAP_FLAG_AUDIO_ANY) {
                return VIDCAP_INIT_AUDIO_NOT_SUPPORTED;
        }
        capture_state = 0;
        *state = &capture_state;
        return VIDCAP_INIT_OK;
}

References capture_state, state, VIDCAP_FLAG_AUDIO_ANY, VIDCAP_INIT_AUDIO_NOT_SUPPORTED, VIDCAP_INIT_OK, and vidcap_params_get_flags().

Here is the call graph for this function:

vidcap_null_probe()

static void vidcap_null_probe ( struct device_info ** available_cards, int * count, void(** deleter )(void *) )

static

Definition at line 84 of file null.c.

{
        *deleter = free;
        *available_cards = NULL;
        *count = 0;
}

References count, and deleter.

Variable Documentation

capture_state

int capture_state = 0

static

Definition at line 60 of file null.c.

Referenced by vidcap_null_done(), vidcap_null_grab(), and vidcap_null_init().

vidcap_null_info

const struct video_capture_info vidcap_null_info

static

Initial value:

= {
        vidcap_null_probe,
        vidcap_null_init,
        vidcap_null_done,
        vidcap_null_grab,
        VIDCAP_NO_GENERIC_FPS_INDICATOR,
}

Definition at line 91 of file null.c.

                                                          {
        vidcap_null_probe,
        vidcap_null_init,
        vidcap_null_done,
        vidcap_null_grab,
        VIDCAP_NO_GENERIC_FPS_INDICATOR,
};