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102 lines
3.3 KiB
102 lines
3.3 KiB
/*****************************************************************************
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* v4l2.h : Video4Linux2 input module for vlc
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*****************************************************************************
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* Copyright (C) 2002-2011 VLC authors and VideoLAN
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#if defined(HAVE_LINUX_VIDEODEV2_H)
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# include <linux/videodev2.h>
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#elif defined(HAVE_SYS_VIDEOIO_H)
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# include <sys/ioccom.h>
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# include <sys/videoio.h>
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#endif
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/* libv4l2 functions */
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extern int v4l2_fd_open(int, int);
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extern int (*v4l2_close) (int);
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extern int (*v4l2_ioctl) (int, unsigned long int, ...);
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extern ssize_t (*v4l2_read) (int, void *, size_t);
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extern void * (*v4l2_mmap) (void *, size_t, int, int, int, int64_t);
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extern int (*v4l2_munmap) (void *, size_t);
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#define CFG_PREFIX "v4l2-"
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typedef struct vlc_v4l2_ctrl vlc_v4l2_ctrl_t;
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#include <vlc_atomic.h>
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#include <vlc_block.h>
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struct vlc_v4l2_buffer {
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block_t block;
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struct vlc_v4l2_buffers *pool;
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uint32_t index;
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};
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struct vlc_v4l2_buffers {
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size_t count;
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struct vlc_v4l2_buffer **bufs;
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int fd;
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vlc_atomic_rc_t refs;
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_Atomic size_t unused;
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vlc_mutex_t lock;
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};
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/* v4l2.c */
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void ParseMRL(vlc_object_t *, const char *);
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int OpenDevice (vlc_object_t *, const char *, uint32_t *);
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v4l2_std_id var_InheritStandard (vlc_object_t *, const char *);
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/* video.c */
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int SetupTuner (vlc_object_t *, int fd, uint32_t);
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int SetupVideo(vlc_object_t *, int fd, uint32_t,
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es_format_t *, uint32_t *, uint32_t *);
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struct vlc_v4l2_buffers *StartMmap(vlc_object_t *, int);
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void StopMmap(struct vlc_v4l2_buffers *);
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vlc_tick_t GetBufferPTS (const struct v4l2_buffer *);
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block_t* GrabVideo(vlc_object_t *, struct vlc_v4l2_buffers *);
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#ifdef ZVBI_COMPILED
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/* vbi.c */
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typedef struct vlc_v4l2_vbi vlc_v4l2_vbi_t;
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vlc_v4l2_vbi_t *OpenVBI (demux_t *, const char *);
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int GetFdVBI (vlc_v4l2_vbi_t *);
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void GrabVBI (demux_t *p_demux, vlc_v4l2_vbi_t *);
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void CloseVBI (vlc_v4l2_vbi_t *);
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#endif
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/* demux.c */
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int DemuxOpen(vlc_object_t *);
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void DemuxClose(vlc_object_t *);
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float GetAbsoluteMaxFrameRate(vlc_object_t *, int fd, uint32_t fmt);
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void GetMaxDimensions(vlc_object_t *, int fd, uint32_t fmt, float fps_min,
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uint32_t *pwidth, uint32_t *pheight);
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/* access.c */
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int AccessOpen(vlc_object_t *);
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void AccessClose(vlc_object_t *);
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/* radio.c */
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int RadioOpen(vlc_object_t *);
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void RadioClose(vlc_object_t *);
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/* controls.c */
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vlc_v4l2_ctrl_t *ControlsInit(vlc_object_t *, int fd);
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void ControlsDeinit(vlc_object_t *, vlc_v4l2_ctrl_t *);
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