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/*****************************************************************************
* v4l2.h : Video4Linux2 input module for vlc
*****************************************************************************
* Copyright (C) 2002-2011 VLC authors and VideoLAN
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#if defined(HAVE_LINUX_VIDEODEV2_H)
# include <linux/videodev2.h>
#elif defined(HAVE_SYS_VIDEOIO_H)
# include <sys/ioccom.h>
# include <sys/videoio.h>
#endif
/* libv4l2 functions */
extern int (*v4l2_fd_open) (int, int);
extern int (*v4l2_close) (int);
extern int (*v4l2_ioctl) (int, unsigned long int, ...);
extern ssize_t (*v4l2_read) (int, void *, size_t);
extern void * (*v4l2_mmap) (void *, size_t, int, int, int, int64_t);
extern int (*v4l2_munmap) (void *, size_t);
#define CFG_PREFIX "v4l2-"
typedef struct vlc_v4l2_ctrl vlc_v4l2_ctrl_t;
struct buffer_t
{
void * start;
size_t length;
};
/* v4l2.c */
void ParseMRL(vlc_object_t *, const char *);
int OpenDevice (vlc_object_t *, const char *, uint32_t *);
v4l2_std_id var_InheritStandard (vlc_object_t *, const char *);
/* video.c */
int SetupInput (vlc_object_t *, int fd, v4l2_std_id *std);
int SetupFormat (vlc_object_t *, int, uint32_t,
struct v4l2_format *, struct v4l2_streamparm *);
#define SetupFormat(o,fd,fcc,fmt,p) \
SetupFormat(VLC_OBJECT(o),fd,fcc,fmt,p)
int SetupTuner (vlc_object_t *, int fd, uint32_t);
int StartUserPtr (vlc_object_t *, int);
struct buffer_t *StartMmap (vlc_object_t *, int, uint32_t *);
void StopMmap (int, struct buffer_t *, uint32_t);
vlc_tick_t GetBufferPTS (const struct v4l2_buffer *);
block_t* GrabVideo (vlc_object_t *, int, const struct buffer_t *);
#ifdef ZVBI_COMPILED
/* vbi.c */
typedef struct vlc_v4l2_vbi vlc_v4l2_vbi_t;
vlc_v4l2_vbi_t *OpenVBI (demux_t *, const char *);
int GetFdVBI (vlc_v4l2_vbi_t *);
void GrabVBI (demux_t *p_demux, vlc_v4l2_vbi_t *);
void CloseVBI (vlc_v4l2_vbi_t *);
#endif
/* demux.c */
int DemuxOpen(vlc_object_t *);
void DemuxClose(vlc_object_t *);
float GetAbsoluteMaxFrameRate(vlc_object_t *, int fd, uint32_t fmt);
void GetMaxDimensions(vlc_object_t *, int fd, uint32_t fmt, float fps_min,
uint32_t *pwidth, uint32_t *pheight);
/* access.c */
int AccessOpen(vlc_object_t *);
void AccessClose(vlc_object_t *);
/* radio.c */
int RadioOpen(vlc_object_t *);
void RadioClose(vlc_object_t *);
/* controls.c */
vlc_v4l2_ctrl_t *ControlsInit(vlc_object_t *, int fd);
void ControlsDeinit(vlc_object_t *, vlc_v4l2_ctrl_t *);
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