v4l2.c File Reference

Include dependency graph for v4l2.c:


Data Structures

struct  buffer_t
struct  demux_sys_t

Defines

#define STANDARD_TEXT   N_( "Standard" )
#define STANDARD_LONGTEXT
#define CHROMA_TEXT   N_("Video input chroma format")
#define CHROMA_LONGTEXT
#define INPUT_TEXT   N_( "Input" )
#define INPUT_LONGTEXT
#define AUDIO_INPUT_TEXT   N_( "Audio input" )
#define AUDIO_INPUT_LONGTEXT
#define IOMETHOD_TEXT   N_( "IO Method" )
#define IOMETHOD_LONGTEXT
#define WIDTH_TEXT   N_( "Width" )
#define WIDTH_LONGTEXT
#define HEIGHT_TEXT   N_( "Height" )
#define HEIGHT_LONGTEXT
#define FPS_TEXT   N_( "Framerate" )
#define FPS_LONGTEXT
#define CTRL_RESET_TEXT   N_( "Reset v4l2 controls" )
#define CTRL_RESET_LONGTEXT
#define BRIGHTNESS_TEXT   N_( "Brightness" )
#define BRIGHTNESS_LONGTEXT
#define CONTRAST_TEXT   N_( "Contrast" )
#define CONTRAST_LONGTEXT
#define SATURATION_TEXT   N_( "Saturation" )
#define SATURATION_LONGTEXT
#define HUE_TEXT   N_( "Hue" )
#define HUE_LONGTEXT
#define BLACKLEVEL_TEXT   N_( "Black level" )
#define BLACKLEVEL_LONGTEXT
#define AUTOWHITEBALANCE_TEXT   N_( "Auto white balance" )
#define AUTOWHITEBALANCE_LONGTEXT
#define DOWHITEBALANCE_TEXT   N_( "Do white balance" )
#define DOWHITEBALANCE_LONGTEXT
#define REDBALANCE_TEXT   N_( "Red balance" )
#define REDBALANCE_LONGTEXT
#define BLUEBALANCE_TEXT   N_( "Blue balance" )
#define BLUEBALANCE_LONGTEXT
#define GAMMA_TEXT   N_( "Gamma" )
#define GAMMA_LONGTEXT
#define EXPOSURE_TEXT   N_( "Exposure" )
#define EXPOSURE_LONGTEXT
#define AUTOGAIN_TEXT   N_( "Auto gain" )
#define AUTOGAIN_LONGTEXT
#define GAIN_TEXT   N_( "Gain" )
#define GAIN_LONGTEXT
#define HFLIP_TEXT   N_( "Horizontal flip" )
#define HFLIP_LONGTEXT
#define VFLIP_TEXT   N_( "Vertical flip" )
#define VFLIP_LONGTEXT
#define HCENTER_TEXT   N_( "Horizontal centering" )
#define HCENTER_LONGTEXT
#define VCENTER_TEXT   N_( "Vertical centering" )
#define VCENTER_LONGTEXT
#define AUDIO_VOLUME_TEXT   N_( "Volume" )
#define AUDIO_VOLUME_LONGTEXT
#define AUDIO_BALANCE_TEXT   N_( "Balance" )
#define AUDIO_BALANCE_LONGTEXT
#define AUDIO_MUTE_TEXT   N_( "Mute" )
#define AUDIO_MUTE_LONGTEXT
#define AUDIO_BASS_TEXT   N_( "Bass" )
#define AUDIO_BASS_LONGTEXT
#define AUDIO_TREBLE_TEXT   N_( "Treble" )
#define AUDIO_TREBLE_LONGTEXT
#define AUDIO_LOUDNESS_TEXT   N_( "Loudness" )
#define AUDIO_LOUDNESS_LONGTEXT
#define CACHING_TEXT   N_("Caching value in ms")
#define CACHING_LONGTEXT
#define S_CTRLS_TEXT   N_("v4l2 driver controls")
#define S_CTRLS_LONGTEXT
#define TUNER_TEXT   N_("Tuner id")
#define TUNER_LONGTEXT
#define FREQUENCY_TEXT   N_("Frequency")
#define FREQUENCY_LONGTEXT
#define TUNER_AUDIO_MODE_TEXT   N_("Audio mode")
#define TUNER_AUDIO_MODE_LONGTEXT
#define AUDIO_DEPRECATED_ERROR
#define ASPECT_TEXT   N_("Picture aspect-ratio n:m")
#define ASPECT_LONGTEXT   N_("Define input picture aspect-ratio to use. Default is 4:3" )
#define V4L2_DEFAULT   "/dev/video0"
#define CFG_PREFIX   "v4l2-"
#define DEFAULT_WIDTH   (-1)
#define DEFAULT_HEIGHT   (-1)
#define v4l2_open   vlc_open
#define v4l2_close   close
#define v4l2_dup   dup
#define v4l2_ioctl   ioctl
#define v4l2_read   read
#define v4l2_mmap   mmap
#define v4l2_munmap   munmap

Enumerations

enum  io_method { IO_METHOD_AUTO, IO_METHOD_READ, IO_METHOD_MMAP, IO_METHOD_USERPTR }

Functions

static int DemuxOpen (vlc_object_t *)
static void DemuxClose (vlc_object_t *)
static int AccessOpen (vlc_object_t *)
 **************************************************************************
static void AccessClose (vlc_object_t *)
 **************************************************************************
int vlc_entry__main (module_t *p_module)
const char * vlc_entry_license__main (void)
static void CommonClose (vlc_object_t *, demux_sys_t *)
static void ParseMRL (demux_sys_t *, char *, vlc_object_t *)
static void GetV4L2Params (demux_sys_t *, vlc_object_t *)
static void SetAvailControlsByString (vlc_object_t *, demux_sys_t *, int)
static int DemuxControl (demux_t *, int, va_list)
static int AccessControl (access_t *, int, va_list)
static int Demux (demux_t *)
static block_t * AccessRead (access_t *)
static ssize_t AccessReadStream (access_t *p_access, uint8_t *p_buffer, size_t i_len)
static block_t * GrabVideo (vlc_object_t *p_demux, demux_sys_t *p_sys)
static block_t * ProcessVideoFrame (vlc_object_t *p_demux, uint8_t *p_frame, size_t)
static bool IsPixelFormatSupported (demux_t *p_demux, unsigned int i_pixelformat)
static int OpenVideoDev (vlc_object_t *, demux_sys_t *, bool)
static bool ProbeVideoDev (vlc_object_t *, demux_sys_t *, const char *psz_device)
static int ControlList (vlc_object_t *, demux_sys_t *, int, bool, bool)
static int Control (vlc_object_t *, demux_sys_t *, int i_fd, const char *psz_name, int i_cid, int i_value)
static int DemuxControlCallback (vlc_object_t *p_this, const char *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data)
static int DemuxControlResetCallback (vlc_object_t *p_this, const char *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data)
static int AccessControlCallback (vlc_object_t *p_this, const char *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data)
static int AccessControlResetCallback (vlc_object_t *p_this, const char *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data)
static int FindMainDevice (vlc_object_t *p_this, demux_sys_t *p_sys, bool b_demux)
static int InitRead (vlc_object_t *p_demux, demux_sys_t *p_sys, unsigned int i_buffer_size)
static int InitMmap (vlc_object_t *p_demux, demux_sys_t *p_sys, int i_fd)
static int InitUserP (vlc_object_t *p_demux, demux_sys_t *p_sys, int i_fd, unsigned int i_buffer_size)
static float GetMaxFrameRate (demux_t *p_demux, int i_fd, uint32_t i_pixel_format, uint32_t i_width, uint32_t i_height)
static float GetAbsoluteMaxFrameRate (demux_t *p_demux, int i_fd, uint32_t i_pixel_format)
static void GetMaxDimensions (demux_t *p_demux, int i_fd, uint32_t i_pixel_format, float f_fps_min, uint32_t *pi_width, uint32_t *pi_height)
static void name2var (unsigned char *name)
static void ControlListPrint (vlc_object_t *p_obj, demux_sys_t *p_sys, int i_fd, struct v4l2_queryctrl queryctrl, bool b_reset, bool b_demux)
static int ControlReset (vlc_object_t *p_obj, demux_sys_t *p_sys, int i_fd)

Variables

static const int i_standards_list []
static const char *const psz_standards_list_text []
static const int i_iomethod_list []
static const char *const psz_iomethod_list_text []
static const int i_tuner_audio_modes_list []
static const char *const psz_tuner_audio_modes_list_text []
struct {
   unsigned int   i_v4l2
   vlc_fourcc_t   i_fourcc
   int   i_rmask
   int   i_gmask
   int   i_bmask
} v4l2chroma_to_fourcc []
static const uint32_t p_chroma_fallbacks []
 List of V4L2 chromas were confident enough to use as fallbacks if the user hasn't provided a --v4l2-chroma value.
struct {
   const char *   psz_name
   unsigned int   i_cid
} controls []

Define Documentation

#define ASPECT_LONGTEXT   N_("Define input picture aspect-ratio to use. Default is 4:3" )

#define ASPECT_TEXT   N_("Picture aspect-ratio n:m")

#define AUDIO_BALANCE_LONGTEXT

Value:

N_( \
    "Balance of the audio input (if supported by the v4l2 driver)." )

#define AUDIO_BALANCE_TEXT   N_( "Balance" )

#define AUDIO_BASS_LONGTEXT

Value:

N_( \
    "Bass level of the audio input (if supported by the v4l2 driver)." )

#define AUDIO_BASS_TEXT   N_( "Bass" )

#define AUDIO_DEPRECATED_ERROR

Value:

N_( \
    "Alsa or OSS audio capture in the v4l2 access is deprecated. " \
    "please use 'v4l2:/""/ :input-slave=alsa:/""/' or " \
    "'v4l2:/""/ :input-slave=oss:/""/' instead." )

#define AUDIO_INPUT_LONGTEXT

Value:

N_( \
    "Audio input of the card to use (see debug)." )

#define AUDIO_INPUT_TEXT   N_( "Audio input" )

#define AUDIO_LOUDNESS_LONGTEXT

Value:

N_( \
    "Loudness of the audio input (if supported by the v4l2 driver)." )

#define AUDIO_LOUDNESS_TEXT   N_( "Loudness" )

#define AUDIO_MUTE_LONGTEXT

Value:

N_( \
    "Mute audio input (if supported by the v4l2 driver)." )

#define AUDIO_MUTE_TEXT   N_( "Mute" )

#define AUDIO_TREBLE_LONGTEXT

Value:

N_( \
    "Treble level of the audio input (if supported by the v4l2 driver)." )

#define AUDIO_TREBLE_TEXT   N_( "Treble" )

#define AUDIO_VOLUME_LONGTEXT

Value:

N_( \
    "Volume of the audio input (if supported by the v4l2 driver)." )

#define AUDIO_VOLUME_TEXT   N_( "Volume" )

#define AUTOGAIN_LONGTEXT

Value:

N_( \
    "Automatically set the video input's gain (if supported by the " \
    "v4l2 driver)." )

#define AUTOGAIN_TEXT   N_( "Auto gain" )

#define AUTOWHITEBALANCE_LONGTEXT

Value:

N_( \
    "Automatically set the white balance of the video input " \
    "(if supported by the v4l2 driver)." )

#define AUTOWHITEBALANCE_TEXT   N_( "Auto white balance" )

#define BLACKLEVEL_LONGTEXT

Value:

N_( \
    "Black level of the video input (if supported by the v4l2 driver)." )

#define BLACKLEVEL_TEXT   N_( "Black level" )

#define BLUEBALANCE_LONGTEXT

Value:

N_( \
    "Blue balance of the video input (if supported by the v4l2 driver)." )

#define BLUEBALANCE_TEXT   N_( "Blue balance" )

#define BRIGHTNESS_LONGTEXT

Value:

N_( \
    "Brightness of the video input (if supported by the v4l2 driver)." )

#define BRIGHTNESS_TEXT   N_( "Brightness" )

#define CACHING_LONGTEXT

Value:

N_( \
    "Caching value for V4L2 captures. This " \
    "value should be set in milliseconds." )

#define CACHING_TEXT   N_("Caching value in ms")

#define CFG_PREFIX   "v4l2-"

#define CHROMA_LONGTEXT

Value:

N_( \
    "Force the Video4Linux2 video device to use a specific chroma format " \
    "(eg. I420 or I422 for raw images, MJPG for M-JPEG compressed input) " \
    "(Complete list: GREY, I240, RV16, RV15, RV24, RV32, YUY2, YUYV, UYVY, " \
    "I41N, I422, I420, I411, I410, MJPG)")

#define CHROMA_TEXT   N_("Video input chroma format")

#define CONTRAST_LONGTEXT

Value:

N_( \
    "Contrast of the video input (if supported by the v4l2 driver)." )

#define CONTRAST_TEXT   N_( "Contrast" )

#define CTRL_RESET_LONGTEXT

Value:

N_( \
    "Reset controls to defaults provided by the v4l2 driver." )

#define CTRL_RESET_TEXT   N_( "Reset v4l2 controls" )

#define DEFAULT_HEIGHT   (-1)

#define DEFAULT_WIDTH   (-1)

#define DOWHITEBALANCE_LONGTEXT

Value:

N_( \
    "Trigger a white balancing action, useless if auto white balance is " \
    "activated (if supported by the v4l2 driver)." )

#define DOWHITEBALANCE_TEXT   N_( "Do white balance" )

#define EXPOSURE_LONGTEXT

Value:

N_( \
    "Exposure of the video input (if supported by the v4L2 driver)." )

#define EXPOSURE_TEXT   N_( "Exposure" )

#define FPS_LONGTEXT

Value:

N_( "Framerate to capture, if applicable " \
    "(0 for autodetect)." )

#define FPS_TEXT   N_( "Framerate" )

#define FREQUENCY_LONGTEXT

Value:

N_( \
    "Tuner frequency in Hz or kHz (see debug output)" )

#define FREQUENCY_TEXT   N_("Frequency")

#define GAIN_LONGTEXT

Value:

N_( \
    "Video input's gain (if supported by the v4l2 driver)." )

#define GAIN_TEXT   N_( "Gain" )

#define GAMMA_LONGTEXT

Value:

N_( \
    "Gamma of the video input (if supported by the v4l2 driver)." )

#define GAMMA_TEXT   N_( "Gamma" )

#define HCENTER_LONGTEXT

Value:

N_( \
    "Set the camera's horizontal centering (if supported by the v4l2 driver)." )

#define HCENTER_TEXT   N_( "Horizontal centering" )

#define HEIGHT_LONGTEXT

Value:

N_( \
    "Force height (-1 for autodetect, 0 for driver default)." )

#define HEIGHT_TEXT   N_( "Height" )

#define HFLIP_LONGTEXT

Value:

N_( \
    "Flip the video horizontally (if supported by the v4l2 driver)." )

#define HFLIP_TEXT   N_( "Horizontal flip" )

#define HUE_LONGTEXT

Value:

N_( \
    "Hue of the video input (if supported by the v4l2 driver)." )

#define HUE_TEXT   N_( "Hue" )

#define INPUT_LONGTEXT

Value:

N_( \
    "Input of the card to use (see debug)." )

#define INPUT_TEXT   N_( "Input" )

#define IOMETHOD_LONGTEXT

Value:

N_( \
    "IO Method (READ, MMAP, USERPTR)." )

#define IOMETHOD_TEXT   N_( "IO Method" )

#define REDBALANCE_LONGTEXT

Value:

N_( \
    "Red balance of the video input (if supported by the v4l2 driver)." )

#define REDBALANCE_TEXT   N_( "Red balance" )

#define S_CTRLS_LONGTEXT

Value:

N_( \
    "Set the v4l2 driver controls to the values specified using a comma " \
    "separated list optionally encapsulated by curly braces " \
    "(e.g.: {video_bitrate=6000000,audio_crc=0,stream_type=3} ). " \
    "To list available controls, increase verbosity (-vvv) " \
    "or use the v4l2-ctl application." )

#define S_CTRLS_TEXT   N_("v4l2 driver controls")

#define SATURATION_LONGTEXT

Value:

N_( \
    "Saturation of the video input (if supported by the v4l2 driver)." )

#define SATURATION_TEXT   N_( "Saturation" )

#define STANDARD_LONGTEXT

Value:

N_( \
    "Video standard (Default, SECAM, PAL, or NTSC)." )

#define STANDARD_TEXT   N_( "Standard" )

#define TUNER_AUDIO_MODE_LONGTEXT

Value:

N_( \
    "Tuner audio mono/stereo and track selection." )

#define TUNER_AUDIO_MODE_TEXT   N_("Audio mode")

#define TUNER_LONGTEXT

Value:

N_( \
    "Tuner id (see debug output)." )

#define TUNER_TEXT   N_("Tuner id")

#define v4l2_close   close

Referenced by CommonClose(), OpenVideoDev(), and ProbeVideoDev().

#define V4L2_DEFAULT   "/dev/video0"

Referenced by ParseMRL().

#define v4l2_dup   dup

#define v4l2_ioctl   ioctl

Referenced by Control(), ControlList(), ControlListPrint(), ControlReset(), DemuxClose(), GetAbsoluteMaxFrameRate(), GetMaxDimensions(), GetMaxFrameRate(), GrabVideo(), InitMmap(), InitUserP(), OpenVideoDev(), and ProbeVideoDev().

#define v4l2_mmap   mmap

Referenced by InitMmap().

#define v4l2_munmap   munmap

Referenced by DemuxClose().

#define v4l2_open   vlc_open

Referenced by OpenVideoDev(), and ProbeVideoDev().

#define v4l2_read   read

Referenced by AccessReadStream(), and GrabVideo().

#define VCENTER_LONGTEXT

Value:

N_( \
    "Set the camera's vertical centering (if supported by the v4l2 driver)." )

#define VCENTER_TEXT   N_( "Vertical centering" )

#define VFLIP_LONGTEXT

Value:

N_( \
    "Flip the video vertically (if supported by the v4l2 driver)." )

#define VFLIP_TEXT   N_( "Vertical flip" )

#define WIDTH_LONGTEXT

Value:

N_( \
    "Force width (-1 for autodetect, 0 for driver default)." )

#define WIDTH_TEXT   N_( "Width" )

Enumeration Type Documentation

enum io_method

Enumerator:
IO_METHOD_AUTO 
IO_METHOD_READ 
IO_METHOD_MMAP 
IO_METHOD_USERPTR 

Function Documentation

static void AccessClose ( vlc_object_t *  p_this  )  [static]

**************************************************************************

Close access: free structures

References CommonClose(), access_t::p_sys, and p_sys.

static int AccessControl ( access_t *  p_access,
int  i_query,
va_list  args 
) [static]

References ACCESS_CAN_CONTROL_PACE, ACCESS_CAN_FASTSEEK, ACCESS_CAN_PAUSE, ACCESS_CAN_SEEK, ACCESS_GET_CONTENT_TYPE, ACCESS_GET_META, ACCESS_GET_PTS_DELAY, ACCESS_GET_TITLE_INFO, ACCESS_SET_PAUSE_STATE, ACCESS_SET_PRIVATE_ID_STATE, ACCESS_SET_SEEKPOINT, ACCESS_SET_TITLE, demux_sys_t::i_cache, msg_Warn, access_t::p_sys, p_sys, VLC_EGENERIC, and VLC_SUCCESS.

static int AccessControlCallback ( vlc_object_t *  p_this,
const char *  psz_var,
vlc_value_t  oldval,
vlc_value_t  newval,
void *  p_data 
) [static]

References Control(), i_cid, demux_sys_t::i_fd, vlc_value_t::i_int, access_t::p_sys, p_sys, and VLC_EGENERIC.

Referenced by ControlListPrint().

static int AccessControlResetCallback ( vlc_object_t *  p_this,
const char *  psz_var,
vlc_value_t  oldval,
vlc_value_t  newval,
void *  p_data 
) [static]

References ControlReset(), demux_sys_t::i_fd, access_t::p_sys, p_sys, and VLC_EGENERIC.

Referenced by ControlList().

static int AccessOpen ( vlc_object_t *  p_this  )  [static]

**************************************************************************

Open access

References access_InitFields(), ACCESS_SET_CALLBACKS, AccessClose(), AccessControl(), AccessRead(), AccessReadStream(), CFG_PREFIX, FindMainDevice(), GetV4L2Params(), demux_sys_t::io, IO_METHOD_READ, msg_Dbg, access_t::p_sys, p_sys, ParseMRL(), access_t::psz_access, var_InheritInteger, VLC_EGENERIC, VLC_ENOMEM, and VLC_SUCCESS.

static block_t * AccessRead ( access_t *  p_access  )  [static]

References access_sys_t::fd, GrabVideo(), demux_sys_t::i_fd, access_t::p_sys, p_sys, poll, POLLIN, POLLPRI, and VLC_OBJECT.

Referenced by AccessOpen().

static ssize_t AccessReadStream ( access_t *  p_access,
uint8_t *  p_buffer,
size_t  i_len 
) [static]

References access_t::b_eof, access_sys_t::fd, demux_sys_t::i_fd, access_t::i_pos, access_t::info, msg_Err, access_t::p_sys, p_sys, poll, POLLIN, v4l2_read, and vlc_object_alive.

Referenced by AccessOpen().

static void CommonClose ( vlc_object_t *  p_this,
demux_sys_t *  p_sys 
) [static]

References demux_sys_t::i_fd, demux_sys_t::p_codecs, demux_sys_t::p_inputs, demux_sys_t::p_standards, demux_sys_t::p_tuners, demux_sys_t::psz_device, demux_sys_t::psz_requested_chroma, demux_sys_t::psz_set_ctrls, and v4l2_close.

static int Control ( vlc_object_t *  p_obj,
demux_sys_t *  p_sys,
int  i_fd,
const char *  psz_name,
int  i_cid,
int  i_value 
) [static]

References vlc_value_t::b_bool, v4l2_queryctrl::flags, vlc_value_t::i_int, v4l2_control::id, v4l2_queryctrl::id, v4l2_queryctrl::maximum, v4l2_queryctrl::minimum, msg_Dbg, msg_Err, V4L2_CTRL_FLAG_DISABLED, v4l2_ioctl, v4l2_control::value, var_Change, var_TriggerCallback, var_Type, VIDIOC_G_CTRL, VIDIOC_QUERYCTRL, VIDIOC_S_CTRL, VLC_EGENERIC, VLC_SUCCESS, VLC_VAR_BOOL, VLC_VAR_INTEGER, VLC_VAR_SETVALUE, and VLC_VAR_TYPE.

static int ControlList ( vlc_object_t *  p_obj,
demux_sys_t *  p_sys,
int  i_fd,
bool  b_reset,
bool  b_demux 
) [static]

References _, AccessControlResetCallback(), ControlListPrint(), DemuxControlResetCallback(), v4l2_queryctrl::flags, i_cid, vlc_value_t::i_int, v4l2_queryctrl::id, msg_Dbg, v4l2_queryctrl::name, name2var(), vlc_value_t::psz_string, v4l2_queryctrl::type, V4L2_CID_BASE, V4L2_CID_LASTP1, V4L2_CID_PRIVATE_BASE, V4L2_CTRL_FLAG_DISABLED, v4l2_ioctl, var_AddCallback, var_Change, var_Create, VIDIOC_QUERYCTRL, VLC_SUCCESS, VLC_VAR_ADDCHOICE, VLC_VAR_HASCHOICE, VLC_VAR_INTEGER, VLC_VAR_ISCOMMAND, VLC_VAR_SETTEXT, and VLC_VAR_VOID.

Referenced by OpenVideoDev().

static void ControlListPrint ( vlc_object_t *  p_obj,
demux_sys_t *  p_sys,
int  i_fd,
struct v4l2_queryctrl  queryctrl,
bool  b_reset,
bool  b_demux 
) [static]

References AccessControlCallback(), CFG_PREFIX, Control(), controls, v4l2_queryctrl::default_value, DemuxControlCallback(), v4l2_queryctrl::flags, i, i_cid, vlc_value_t::i_int, v4l2_control::id, v4l2_querymenu::id, v4l2_queryctrl::id, v4l2_querymenu::index, v4l2_queryctrl::maximum, v4l2_queryctrl::minimum, msg_Dbg, msg_Warn, v4l2_querymenu::name, v4l2_queryctrl::name, name2var(), psz_name, vlc_value_t::psz_string, v4l2_queryctrl::step, strdup(), v4l2_queryctrl::type, V4L2_CTRL_FLAG_GRABBED, V4L2_CTRL_TYPE_BOOLEAN, V4L2_CTRL_TYPE_BUTTON, V4L2_CTRL_TYPE_INTEGER, V4L2_CTRL_TYPE_MENU, v4l2_ioctl, v4l2_control::value, var_AddCallback, var_Change, var_Create, var_CreateGetInteger, var_Destroy, var_SetBool, var_SetInteger, var_Type, VIDIOC_G_CTRL, VIDIOC_QUERYMENU, VLC_VAR_ADDCHOICE, VLC_VAR_BOOL, VLC_VAR_HASCHOICE, VLC_VAR_HASMAX, VLC_VAR_HASMIN, VLC_VAR_HASSTEP, VLC_VAR_INTEGER, VLC_VAR_ISCOMMAND, VLC_VAR_SETMAX, VLC_VAR_SETMIN, VLC_VAR_SETSTEP, VLC_VAR_SETTEXT, VLC_VAR_TYPE, and VLC_VAR_VOID.

Referenced by ControlList().

static int ControlReset ( vlc_object_t *  p_obj,
demux_sys_t *  p_sys,
int  i_fd 
) [static]

References Control(), controls, v4l2_queryctrl::default_value, v4l2_queryctrl::flags, i, i_cid, v4l2_control::id, v4l2_queryctrl::id, v4l2_queryctrl::name, name2var(), psz_name, v4l2_queryctrl::type, V4L2_CID_BASE, V4L2_CID_LASTP1, V4L2_CID_PRIVATE_BASE, V4L2_CTRL_FLAG_DISABLED, v4l2_ioctl, v4l2_control::value, VIDIOC_G_CTRL, VIDIOC_QUERYCTRL, and VLC_SUCCESS.

Referenced by AccessControlResetCallback(), and DemuxControlResetCallback().

static int Demux ( demux_t *  p_demux  )  [static]

References es_out_Control(), es_out_Send(), ES_OUT_SET_PCR, pollfd::events, pollfd::fd, GrabVideo(), demux_sys_t::i_fd, block_t::i_pts, demux_t::out, demux_sys_t::p_es, demux_t::p_sys, p_sys, poll, POLLIN, POLLPRI, pollfd::revents, and VLC_OBJECT.

static void DemuxClose ( vlc_object_t *  p_this  )  [static]

References CommonClose(), i, demux_sys_t::i_fd, demux_sys_t::i_nbuffers, demux_sys_t::io, IO_METHOD_MMAP, IO_METHOD_READ, IO_METHOD_USERPTR, buffer_t::length, v4l2_buffer::memory, msg_Err, demux_sys_t::p_buffers, demux_t::p_sys, p_sys, buffer_t::start, v4l2_buffer::type, V4L2_BUF_TYPE_VIDEO_CAPTURE, v4l2_ioctl, V4L2_MEMORY_MMAP, V4L2_MEMORY_USERPTR, v4l2_munmap, VIDIOC_DQBUF, and VIDIOC_STREAMOFF.

static int DemuxControl ( demux_t *  p_demux,
int  i_query,
va_list  args 
) [static]

References DEMUX_CAN_CONTROL_PACE, DEMUX_CAN_PAUSE, DEMUX_CAN_SEEK, DEMUX_GET_PTS_DELAY, DEMUX_GET_TIME, demux_sys_t::i_cache, mdate(), demux_t::p_sys, VLC_EGENERIC, and VLC_SUCCESS.

static int DemuxControlCallback ( vlc_object_t *  p_this,
const char *  psz_var,
vlc_value_t  oldval,
vlc_value_t  newval,
void *  p_data 
) [static]

References Control(), i_cid, demux_sys_t::i_fd, vlc_value_t::i_int, demux_t::p_sys, p_sys, and VLC_EGENERIC.

Referenced by ControlListPrint().

static int DemuxControlResetCallback ( vlc_object_t *  p_this,
const char *  psz_var,
vlc_value_t  oldval,
vlc_value_t  newval,
void *  p_data 
) [static]

References ControlReset(), demux_sys_t::i_fd, demux_t::p_sys, p_sys, and VLC_EGENERIC.

Referenced by ControlList().

static int DemuxOpen ( vlc_object_t *  p_this  )  [static]

References CFG_PREFIX, Demux(), DemuxClose(), DemuxControl(), FindMainDevice(), GetV4L2Params(), demux_t::i_seekpoint, demux_t::i_title, demux_t::i_update, demux_t::info, msg_Dbg, demux_t::p_sys, p_sys, ParseMRL(), demux_t::pf_control, demux_t::pf_demux, demux_t::psz_access, var_InheritInteger, VLC_EGENERIC, VLC_ENOMEM, and VLC_SUCCESS.

static int FindMainDevice ( vlc_object_t *  p_this,
demux_sys_t *  p_sys,
bool  b_demux 
) [static]

References demux_sys_t::i_fd, msg_Dbg, OpenVideoDev(), ProbeVideoDev(), demux_sys_t::psz_device, VLC_EGENERIC, and VLC_SUCCESS.

static float GetAbsoluteMaxFrameRate ( demux_t *  p_demux,
int  i_fd,
uint32_t  i_pixel_format 
) [static]

References GetMaxFrameRate(), i_height, msg_Err, demux_t::p_sys, p_sys, and v4l2_ioctl.

Referenced by OpenVideoDev().

static void GetMaxDimensions ( demux_t *  p_demux,
int  i_fd,
uint32_t  i_pixel_format,
float  f_fps_min,
uint32_t *  pi_width,
uint32_t *  pi_height 
) [static]

References GetMaxFrameRate(), i_height, msg_Err, demux_t::p_sys, p_sys, and v4l2_ioctl.

Referenced by OpenVideoDev().

static float GetMaxFrameRate ( demux_t *  p_demux,
int  i_fd,
uint32_t  i_pixel_format,
uint32_t  i_width,
uint32_t  i_height 
) [static]

References __MAX, demux_t::p_sys, p_sys, and v4l2_ioctl.

Referenced by GetAbsoluteMaxFrameRate(), and GetMaxDimensions().

static void GetV4L2Params ( demux_sys_t *  p_sys,
vlc_object_t *  p_obj 
) [static]

References EMPTY_STR, demux_sys_t::f_fps, demux_sys_t::i_aspect, demux_sys_t::i_audio_mode, demux_sys_t::i_cache, demux_sys_t::i_cur_tuner, demux_sys_t::i_fd, demux_sys_t::i_frequency, demux_sys_t::i_height, demux_sys_t::i_selected_audio_input, demux_sys_t::i_selected_input, demux_sys_t::i_selected_standard_id, demux_sys_t::i_video_pts, demux_sys_t::i_width, demux_sys_t::io, demux_sys_t::p_es, demux_sys_t::psz_device, demux_sys_t::psz_requested_chroma, demux_sys_t::psz_set_ctrls, var_Create, var_CreateGetFloat, var_CreateGetInteger, var_CreateGetString, VLC_VAR_BOOL, VLC_VAR_DOINHERIT, and VOUT_ASPECT_FACTOR.

Referenced by AccessOpen(), and DemuxOpen().

static block_t * GrabVideo ( vlc_object_t *  p_demux,
demux_sys_t *  p_sys 
) [static]

References block_Release(), v4l2_buffer::bytesused, demux_sys_t::f_fps, i, demux_sys_t::i_block_flags, block_t::i_dts, demux_sys_t::i_fd, block_t::i_flags, demux_sys_t::i_nbuffers, block_t::i_pts, demux_sys_t::i_video_pts, v4l2_buffer::index, demux_sys_t::io, IO_METHOD_MMAP, IO_METHOD_READ, IO_METHOD_USERPTR, v4l2_buffer::length, buffer_t::length, v4l2_buffer::m, mdate(), v4l2_buffer::memory, msg_Err, demux_sys_t::p_buffers, ProcessVideoFrame(), buffer_t::start, v4l2_buffer::type, v4l2_buffer::userptr, V4L2_BUF_TYPE_VIDEO_CAPTURE, v4l2_ioctl, V4L2_MEMORY_MMAP, V4L2_MEMORY_USERPTR, v4l2_read, VIDIOC_DQBUF, and VIDIOC_QBUF.

static int InitMmap ( vlc_object_t *  p_demux,
demux_sys_t *  p_sys,
int  i_fd 
) [static]

References v4l2_requestbuffers::count, demux_sys_t::i_nbuffers, v4l2_buffer::index, v4l2_buffer::length, buffer_t::length, v4l2_buffer::m, v4l2_buffer::memory, v4l2_requestbuffers::memory, msg_Err, v4l2_buffer::offset, demux_sys_t::p_buffers, buffer_t::start, v4l2_buffer::type, v4l2_requestbuffers::type, V4L2_BUF_TYPE_VIDEO_CAPTURE, v4l2_ioctl, V4L2_MEMORY_MMAP, v4l2_mmap, VIDIOC_QUERYBUF, VIDIOC_REQBUFS, VLC_EGENERIC, and VLC_SUCCESS.

Referenced by OpenVideoDev().

static int InitRead ( vlc_object_t *  p_demux,
demux_sys_t *  p_sys,
unsigned int  i_buffer_size 
) [static]

References buffer_t::length, demux_sys_t::p_buffers, buffer_t::start, VLC_EGENERIC, VLC_ENOMEM, and VLC_SUCCESS.

Referenced by OpenVideoDev().

static int InitUserP ( vlc_object_t *  p_demux,
demux_sys_t *  p_sys,
int  i_fd,
unsigned int  i_buffer_size 
) [static]

References v4l2_requestbuffers::count, demux_sys_t::i_nbuffers, buffer_t::length, v4l2_requestbuffers::memory, msg_Err, demux_sys_t::p_buffers, buffer_t::start, v4l2_requestbuffers::type, V4L2_BUF_TYPE_VIDEO_CAPTURE, v4l2_ioctl, V4L2_MEMORY_USERPTR, VIDIOC_REQBUFS, VLC_EGENERIC, and VLC_SUCCESS.

Referenced by OpenVideoDev().

static bool IsPixelFormatSupported ( demux_t *  p_demux,
unsigned int  i_pixelformat 
) [static]

References demux_sys_t::i_codec, demux_sys_t::p_codecs, demux_t::p_sys, p_sys, and v4l2_fmtdesc::pixelformat.

Referenced by OpenVideoDev().

static void name2var ( unsigned char *  name  )  [static]

Referenced by ControlList(), ControlListPrint(), and ControlReset().

static int OpenVideoDev ( vlc_object_t *  p_obj,
demux_sys_t *  p_sys,
bool  b_demux 
) [static]

References ARRAY_SIZE, v4l2_tuner::audmode, BLOCK_FLAG_BOTTOM_FIELD_FIRST, BLOCK_FLAG_TOP_FIELD_FIRST, v4l2_pix_format::bytesperline, v4l2_crop::c, v4l2_capability::capabilities, ControlList(), v4l2_cropcap::defrect, demux_sys_t::dev_cap, es_format_Init(), es_out_Add(), demux_sys_t::f_fps, v4l2_pix_format::field, v4l2_format::fmt, v4l2_frequency::frequency, GetAbsoluteMaxFrameRate(), GetMaxDimensions(), v4l2_pix_format::height, v4l2_rect::height, i, demux_sys_t::i_aspect, demux_sys_t::i_audio, demux_sys_t::i_audio_mode, demux_sys_t::i_block_flags, video_format_t::i_bmask, es_format_t::i_codec, demux_sys_t::i_cur_tuner, demux_sys_t::i_fourcc, i_fourcc, demux_sys_t::i_frequency, video_format_t::i_gmask, video_format_t::i_height, i_height, demux_sys_t::i_height, demux_sys_t::i_input, demux_sys_t::i_nbuffers, video_format_t::i_rmask, video_format_t::i_sar_den, video_format_t::i_sar_num, demux_sys_t::i_selected_audio_input, demux_sys_t::i_selected_input, demux_sys_t::i_selected_standard_id, demux_sys_t::i_standard, demux_sys_t::i_tuner, i_v4l2, video_format_t::i_width, demux_sys_t::i_width, v4l2_standard::id, v4l2_buffer::index, v4l2_tuner::index, InitMmap(), InitRead(), InitUserP(), demux_sys_t::io, IO_METHOD_MMAP, IO_METHOD_READ, IO_METHOD_USERPTR, IsPixelFormatSupported(), buffer_t::length, v4l2_buffer::length, long(), v4l2_buffer::m, v4l2_buffer::memory, msg_Dbg, msg_Err, msg_Warn, v4l2_standard::name, demux_t::out, demux_sys_t::p_audios, demux_sys_t::p_buffers, demux_sys_t::p_es, demux_sys_t::p_standards, demux_sys_t::p_tuners, v4l2_format::pix, v4l2_pix_format::pixelformat, demux_sys_t::psz_device, demux_sys_t::psz_requested_chroma, SetAvailControlsByString(), v4l2_pix_format::sizeimage, buffer_t::start, v4l2_frequency::tuner, v4l2_buffer::type, v4l2_format::type, v4l2_crop::type, v4l2_cropcap::type, v4l2_tuner::type, v4l2_frequency::type, v4l2_buffer::userptr, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_CAP_READWRITE, V4L2_CAP_STREAMING, v4l2_close, V4L2_FIELD_ALTERNATE, V4L2_FIELD_ANY, V4L2_FIELD_BOTTOM, V4L2_FIELD_INTERLACED, V4L2_FIELD_NONE, V4L2_FIELD_SEQ_BT, V4L2_FIELD_SEQ_TB, V4L2_FIELD_TOP, v4l2_ioctl, V4L2_MEMORY_MMAP, V4L2_MEMORY_USERPTR, v4l2_open, V4L2_STD_NTSC, V4L2_STD_UNKNOWN, v4l2chroma_to_fourcc, var_GetBool, es_format_t::video, VIDEO_ES, VIDIOC_CROPCAP, VIDIOC_G_FMT, VIDIOC_G_STD, VIDIOC_QBUF, VIDIOC_S_AUDIO, VIDIOC_S_CROP, VIDIOC_S_FMT, VIDIOC_S_FREQUENCY, VIDIOC_S_INPUT, VIDIOC_S_STD, VIDIOC_S_TUNER, VIDIOC_STREAMON, vlc_fourcc_GetCodecFromString(), vlc_fourcc_to_char, VLC_SUCCESS, VOUT_ASPECT_FACTOR, v4l2_pix_format::width, and v4l2_rect::width.

static void ParseMRL ( demux_sys_t *  p_sys,
char *  psz_path,
vlc_object_t *  p_obj 
) [static]

References ARRAY_SIZE, AUDIO_DEPRECATED_ERROR, demux_sys_t::f_fps, i, demux_sys_t::i_aspect, demux_sys_t::i_audio_mode, demux_sys_t::i_cache, demux_sys_t::i_cur_tuner, demux_sys_t::i_frequency, demux_sys_t::i_height, demux_sys_t::i_selected_audio_input, demux_sys_t::i_selected_input, demux_sys_t::i_selected_standard_id, demux_sys_t::i_width, demux_sys_t::io, IO_METHOD_MMAP, IO_METHOD_READ, IO_METHOD_USERPTR, msg_Err, msg_Warn, demux_sys_t::psz_device, demux_sys_t::psz_requested_chroma, demux_sys_t::psz_set_ctrls, psz_value, strdup(), strncasecmp(), strndup(), us_strtof(), V4L2_DEFAULT, var_SetBool, var_SetInteger, and VOUT_ASPECT_FACTOR.

static bool ProbeVideoDev ( vlc_object_t *  p_obj,
demux_sys_t *  p_sys,
const char *  psz_device 
) [static]

References v4l2_capability::bus_info, v4l2_capability::capabilities, v4l2_tuner::capability, v4l2_audio::capability, v4l2_capability::card, v4l2_fmtdesc::description, demux_sys_t::dev_cap, v4l2_capability::driver, v4l2_frequency::frequency, i, demux_sys_t::i_audio, demux_sys_t::i_codec, i_fourcc, demux_sys_t::i_input, demux_sys_t::i_selected_audio_input, demux_sys_t::i_selected_input, demux_sys_t::i_selected_standard_id, demux_sys_t::i_standard, demux_sys_t::i_tuner, i_v4l2, v4l2_standard::id, v4l2_fmtdesc::index, v4l2_tuner::index, v4l2_audio::index, v4l2_standard::index, v4l2_input::index, demux_sys_t::io, IO_METHOD_MMAP, IO_METHOD_READ, msg_Dbg, msg_Err, msg_Warn, v4l2_tuner::name, v4l2_audio::name, v4l2_standard::name, v4l2_input::name, demux_sys_t::p_audios, demux_sys_t::p_codecs, demux_sys_t::p_inputs, demux_sys_t::p_standards, demux_sys_t::p_tuners, v4l2_fmtdesc::pixelformat, v4l2_tuner::rangehigh, v4l2_tuner::rangelow, v4l2_fmtdesc::type, v4l2_tuner::type, v4l2_input::type, V4L2_AUDCAP_AVL, V4L2_AUDCAP_STEREO, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_CAP_ASYNCIO, V4L2_CAP_AUDIO, V4L2_CAP_RDS_CAPTURE, V4L2_CAP_READWRITE, V4L2_CAP_STREAMING, V4L2_CAP_TUNER, V4L2_CAP_VBI_CAPTURE, V4L2_CAP_VIDEO_CAPTURE, v4l2_close, V4L2_INPUT_TYPE_TUNER, v4l2_ioctl, v4l2_open, V4L2_TUNER_CAP_LOW, V4L2_TUNER_RADIO, v4l2chroma_to_fourcc, v4l2_capability::version, VIDIOC_ENUM_FMT, VIDIOC_ENUMINPUT, VIDIOC_ENUMSTD, VIDIOC_G_AUDIO, VIDIOC_G_FREQUENCY, VIDIOC_G_TUNER, VIDIOC_QUERYCAP, VIDIOC_S_AUDIO, and vlc_fourcc_to_char.

Referenced by FindMainDevice().

static block_t * ProcessVideoFrame ( vlc_object_t *  p_demux,
uint8_t *  p_frame,
size_t  i_size 
) [static]

References block_New, msg_Warn, and block_t::p_buffer.

Referenced by GrabVideo().

static void SetAvailControlsByString ( vlc_object_t *  p_obj,
demux_sys_t *  p_sys,
int  i_fd 
) [static]

References __MAX, Control(), i, i_cid, vlc_list_t::i_count, vlc_value_t::i_int, msg_Err, name, vlc_value_t::p_list, vlc_list_t::p_values, psz_name, demux_sys_t::psz_set_ctrls, vlc_value_t::psz_string, strncasecmp(), strndup(), text, var_Change, var_FreeList(), VLC_VAR_GETCHOICES, and VLC_VAR_GETTEXT.

Referenced by OpenVideoDev().

int vlc_entry__main ( module_t *  p_module  ) 

const char* vlc_entry_license__main ( void   ) 

Variable Documentation

struct { ... } controls[] [static]

Referenced by ControlListPrint(), ControlReset(), VLCFSPanel::mouseExited:, NSApplication(ScriptSupport)::scriptFullscreenMode, VLCFSPanel::setActive:, and NSApplication(ScriptSupport)::setScriptFullscreenMode:.

int i_bmask

Referenced by BlendYUVARV24(), and GetFfmpegChroma().

unsigned int i_cid

Referenced by AccessControlCallback(), ControlList(), ControlListPrint(), ControlReset(), DemuxControlCallback(), and SetAvailControlsByString().

vlc_fourcc_t i_fourcc

int i_gmask

Referenced by BlendYUVARV24(), and GetFfmpegChroma().

const int i_iomethod_list[] [static]

Initial value:

    { IO_METHOD_AUTO, IO_METHOD_READ, IO_METHOD_MMAP, IO_METHOD_USERPTR }

int i_rmask

Referenced by BlendYUVARV24(), and GetFfmpegChroma().

const int i_standards_list[] [static]

Initial value:

    { V4L2_STD_UNKNOWN, V4L2_STD_SECAM, V4L2_STD_PAL, V4L2_STD_NTSC,
      V4L2_STD_PAL_B, V4L2_STD_PAL_B1, V4L2_STD_PAL_G, V4L2_STD_PAL_H,
      V4L2_STD_PAL_I, V4L2_STD_PAL_D, V4L2_STD_PAL_D1, V4L2_STD_PAL_K,
      V4L2_STD_PAL_M, V4L2_STD_PAL_N, V4L2_STD_PAL_Nc, V4L2_STD_PAL_60,
      V4L2_STD_NTSC_M, V4L2_STD_NTSC_M_JP, V4L2_STD_NTSC_443,
      V4L2_STD_NTSC_M_KR,
      V4L2_STD_SECAM_B, V4L2_STD_SECAM_D, V4L2_STD_SECAM_G,
      V4L2_STD_SECAM_H, V4L2_STD_SECAM_K, V4L2_STD_SECAM_K1,
      V4L2_STD_SECAM_L, V4L2_STD_SECAM_LC,
      V4L2_STD_ATSC_8_VSB, V4L2_STD_ATSC_16_VSB,
      }

const int i_tuner_audio_modes_list[] [static]

Initial value:

    { V4L2_TUNER_MODE_MONO, V4L2_TUNER_MODE_STEREO,
      V4L2_TUNER_MODE_LANG1, V4L2_TUNER_MODE_LANG2,
      V4L2_TUNER_MODE_SAP, V4L2_TUNER_MODE_LANG1_LANG2 }

unsigned int i_v4l2

Referenced by OpenVideoDev(), and ProbeVideoDev().

const uint32_t p_chroma_fallbacks[] [static]

Initial value:

{ V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_YVU420, V4L2_PIX_FMT_YUV422P,
  V4L2_PIX_FMT_YUYV, V4L2_PIX_FMT_UYVY, V4L2_PIX_FMT_BGR24,
  V4L2_PIX_FMT_BGR32, V4L2_PIX_FMT_MJPEG, V4L2_PIX_FMT_JPEG }
List of V4L2 chromas were confident enough to use as fallbacks if the user hasn't provided a --v4l2-chroma value.

Try YUV chromas first, then RGB little endian and MJPEG as last resort.

const char* const psz_iomethod_list_text[] [static]

Initial value:

    { N_("AUTO"), N_("READ"), N_("MMAP"),  N_("USERPTR") }

const char* psz_name

const char* const psz_standards_list_text[] [static]

Initial value:

    { N_("Default"), "SECAM", "PAL",  "NTSC",
      "PAL_B", "PAL_B1", "PAL_G", "PAL_H", "PAL_I", "PAL_D",
      "PAL_D1", "PAL_K", "PAL_M", "PAL_N", "PAL_Nc", "PAL_60",
      "NTSC_M", "NTSC_M_JP", "NTSC_443", "NTSC_M_KR",
      "SECAM_B", "SECAM_D", "SECAM_G", "SECAM_H", "SECAM_K",
      "SECAM_K1", "SECAM_L", "SECAM_LC",
      "ATSC_8_VSB", "ATSC_16_VSB"
    }

const char* const psz_tuner_audio_modes_list_text[] [static]

Initial value:

    { N_( "Mono" ),
      N_( "Stereo" ),
      N_( "Primary language (Analog TV tuners only)" ),
      N_( "Secondary language (Analog TV tuners only)" ),
      N_( "Second audio program (Analog TV tuners only)" ),
      N_( "Primary language left, Secondary language right" ) }

struct { ... } v4l2chroma_to_fourcc[] [static]

Referenced by OpenVideoDev(), and ProbeVideoDev().

Generated on Tue May 25 08:05:08 2010 for VLC by  doxygen 1.5.6