/*****************************************************************************
* v4l2.c : Video4Linux2 input module for vlc
*****************************************************************************
- * Copyright (C) 2002-2007 the VideoLAN team
+ * Copyright (C) 2002-2009 the VideoLAN team
* $Id$
*
* Authors: Benjamin Pracht <bigben at videolan dot org>
/*
* Sections based on the reference V4L2 capture example at
* http://v4l2spec.bytesex.org/spec/capture-example.html
- *
- * ALSA support based on parts of
- * http://www.equalarea.com/paul/alsa-audio.html
- * and hints taken from alsa-utils (aplay/arecord)
- * http://www.alsa-project.org
*/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <vlc/vlc.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
#include <vlc_access.h>
+#include <vlc_charset.h>
+#include <vlc_fs.h>
#include <vlc_demux.h>
#include <vlc_input.h>
-#include <vlc_vout.h>
#include <ctype.h>
+#include <errno.h>
#include <fcntl.h>
-#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
-#include <linux/videodev2.h>
-
-#include <sys/soundcard.h>
-
-#ifdef HAVE_ALSA
-# define ALSA_PCM_NEW_HW_PARAMS_API
-# define ALSA_PCM_NEW_SW_PARAMS_API
-# include <alsa/asoundlib.h>
+#if defined(HAVE_LINUX_VIDEODEV2_H)
+# include <linux/videodev2.h>
+#elif defined(HAVE_SYS_VIDEOIO_H)
+# include <sys/videoio.h>
+#else
+# error "No Video4Linux2 headers found."
#endif
#include <poll.h>
+#ifdef HAVE_LIBV4L2
+# include <libv4l2.h>
+#endif
+
/*****************************************************************************
* Module descriptior
*****************************************************************************/
static int AccessOpen ( vlc_object_t * );
static void AccessClose( vlc_object_t * );
-#define DEV_TEXT N_("Device name")
-#define DEV_LONGTEXT N_( \
- "Name of the device to use. " \
- "If you don't specify anything, /dev/video0 will be used.")
#define STANDARD_TEXT N_( "Standard" )
#define STANDARD_LONGTEXT N_( \
"Video standard (Default, SECAM, PAL, or NTSC)." )
#define CHROMA_TEXT N_("Video input chroma format")
#define CHROMA_LONGTEXT N_( \
"Force the Video4Linux2 video device to use a specific chroma format " \
- "(eg. I420 or I422 for raw images, MJPEG for M-JPEG compressed input) " \
+ "(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 INPUT_TEXT N_( "Input" )
"IO Method (READ, MMAP, USERPTR)." )
#define WIDTH_TEXT N_( "Width" )
#define WIDTH_LONGTEXT N_( \
- "Force width (-1 for autodetect)." )
+ "Force width (-1 for autodetect, 0 for driver default)." )
#define HEIGHT_TEXT N_( "Height" )
#define HEIGHT_LONGTEXT N_( \
- "Force height (-1 for autodetect)." )
+ "Force height (-1 for autodetect, 0 for driver default)." )
#define FPS_TEXT N_( "Framerate" )
#define FPS_LONGTEXT N_( "Framerate to capture, if applicable " \
- "(-1 for autodetect)." )
+ "(0 for autodetect)." )
+
+#ifdef HAVE_LIBV4L2
+#define LIBV4L2_TEXT N_( "Use libv4l2" )
+#define LIBV4L2_LONGTEXT N_( \
+ "Force usage of the libv4l2 wrapper." )
+#endif
#define CTRL_RESET_TEXT N_( "Reset v4l2 controls" )
#define CTRL_RESET_LONGTEXT N_( \
#define VCENTER_LONGTEXT N_( \
"Set the camera's vertical centering (if supported by the v4l2 driver)." )
-#define ADEV_TEXT N_("Audio device name")
-#ifndef HAVE_ALSA
-#define ADEV_LONGTEXT N_( \
- "Name of the audio device to use. " \
- "If you don't specify anything, \"/dev/dsp\" will be used for OSS.")
-#else
-#define ADEV_LONGTEXT N_( \
- "Name of the audio device to use. " \
- "If you don't specify anything, \"/dev/dsp\" will be used for OSS, " \
- "\"hw\" for Alsa.")
-#endif
-#define AUDIO_METHOD_TEXT N_( "Audio method" )
-#ifndef HAVE_ALSA
-#define AUDIO_METHOD_LONGTEXT N_( \
- "Audio method to use: 0 to disable audio, 1 for OSS." )
-#else
-#define AUDIO_METHOD_LONGTEXT N_( \
- "Audio method to use: 0 to disable audio, 1 for OSS, 2 for ALSA, " \
- "3 for ALSA or OSS (ALSA is prefered)." )
-#endif
#define AUDIO_VOLUME_TEXT N_( "Volume" )
#define AUDIO_VOLUME_LONGTEXT N_( \
"Volume of the audio input (if supported by the v4l2 driver)." )
#define AUDIO_LOUDNESS_LONGTEXT N_( \
"Loudness of the audio input (if supported by the v4l2 driver)." )
-#define STEREO_TEXT N_( "Stereo" )
-#define STEREO_LONGTEXT N_( \
- "Capture the audio stream in stereo." )
-#define SAMPLERATE_TEXT N_( "Samplerate" )
-#define SAMPLERATE_LONGTEXT N_( \
- "Samplerate of the captured audio stream, in Hz (eg: 11025, 22050, 44100, 48000)" )
-
#define CACHING_TEXT N_("Caching value in ms")
#define CACHING_LONGTEXT N_( \
"Caching value for V4L2 captures. This " \
#define TUNER_AUDIO_MODE_LONGTEXT N_( \
"Tuner audio mono/stereo and track selection." )
+#define AUDIO_DEPRECATED_ERROR 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 ASPECT_TEXT N_("Picture aspect-ratio n:m")
+#define ASPECT_LONGTEXT N_("Define input picture aspect-ratio to use. Default is 4:3" )
+
typedef enum {
+ IO_METHOD_AUTO,
IO_METHOD_READ,
IO_METHOD_MMAP,
IO_METHOD_USERPTR,
} io_method;
-static int i_standards_list[] =
- { V4L2_STD_UNKNOWN, V4L2_STD_SECAM, V4L2_STD_PAL, V4L2_STD_NTSC };
-static const char *psz_standards_list_text[] =
- { N_("Default"), N_("SECAM"), N_("PAL"), N_("NTSC") };
-
-static int i_iomethod_list[] =
- { IO_METHOD_READ, IO_METHOD_MMAP, IO_METHOD_USERPTR };
-static const char *psz_iomethod_list_text[] =
- { N_("READ"), N_("MMAP"), N_("USERPTR") };
-
-static int i_tuner_audio_modes_list[] =
+static const int i_standards_list[] =
+ { 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,
+ };
+static const char *const psz_standards_list_text[] =
+ { 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"
+ };
+
+static const int i_iomethod_list[] =
+ { IO_METHOD_AUTO, IO_METHOD_READ, IO_METHOD_MMAP, IO_METHOD_USERPTR };
+static const char *const psz_iomethod_list_text[] =
+ { N_("AUTO"), N_("READ"), N_("MMAP"), N_("USERPTR") };
+
+static const int i_tuner_audio_modes_list[] =
{ 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 };
-static const char *psz_tuner_audio_modes_list_text[] =
+static const char *const psz_tuner_audio_modes_list_text[] =
{ N_( "Mono" ),
N_( "Stereo" ),
N_( "Primary language (Analog TV tuners only)" ),
N_( "Second audio program (Analog TV tuners only)" ),
N_( "Primary language left, Secondary language right" ) };
-#define FIND_VIDEO 1
-#define FIND_AUDIO 2
-
-#define AUDIO_METHOD_OSS 1
-#define OSS_DEFAULT "/dev/dsp"
-#define AUDIO_METHOD_ALSA 2
-#define ALSA_DEFAULT "hw"
+#define V4L2_DEFAULT "/dev/video0"
#define CFG_PREFIX "v4l2-"
-vlc_module_begin();
- set_shortname( _("Video4Linux2") );
- set_description( _("Video4Linux2 input") );
- set_category( CAT_INPUT );
- set_subcategory( SUBCAT_INPUT_ACCESS );
+#ifdef HAVE_MAEMO
+# define DEFAULT_WIDTH 640
+# define DEFAULT_HEIGHT 492
+#endif
+
+#ifndef DEFAULT_WIDTH
+# define DEFAULT_WIDTH (-1)
+# define DEFAULT_HEIGHT (-1)
+#endif
+
+vlc_module_begin ()
+ set_shortname( N_("Video4Linux2") )
+ set_description( N_("Video4Linux2 input") )
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_ACCESS )
- set_section( N_( "Video input" ), NULL );
- add_string( CFG_PREFIX "dev", "/dev/video0", 0, DEV_TEXT, DEV_LONGTEXT,
- VLC_FALSE );
+ set_section( N_( "Video input" ), NULL )
add_integer( CFG_PREFIX "standard", 0, NULL, STANDARD_TEXT,
- STANDARD_LONGTEXT, VLC_FALSE );
- change_integer_list( i_standards_list, psz_standards_list_text, 0 );
+ STANDARD_LONGTEXT, false )
+ change_integer_list( i_standards_list, psz_standards_list_text, NULL )
add_string( CFG_PREFIX "chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
- VLC_TRUE );
+ true )
add_integer( CFG_PREFIX "input", 0, NULL, INPUT_TEXT, INPUT_LONGTEXT,
- VLC_TRUE );
+ true )
add_integer( CFG_PREFIX "audio-input", 0, NULL, AUDIO_INPUT_TEXT,
- AUDIO_INPUT_LONGTEXT, VLC_TRUE );
- add_integer( CFG_PREFIX "io", IO_METHOD_MMAP, NULL, IOMETHOD_TEXT,
- IOMETHOD_LONGTEXT, VLC_TRUE );
- change_integer_list( i_iomethod_list, psz_iomethod_list_text, 0 );
- add_integer( CFG_PREFIX "width", 0, NULL, WIDTH_TEXT,
- WIDTH_LONGTEXT, VLC_TRUE );
- add_integer( CFG_PREFIX "height", 0, NULL, HEIGHT_TEXT,
- HEIGHT_LONGTEXT, VLC_TRUE );
- add_float( CFG_PREFIX "fps", 0, NULL, FPS_TEXT, FPS_LONGTEXT, VLC_TRUE );
-
- set_section( N_( "Audio input" ), NULL );
- add_string( CFG_PREFIX "adev", NULL, 0, ADEV_TEXT, ADEV_LONGTEXT,
- VLC_FALSE );
- add_integer( CFG_PREFIX "audio-method", AUDIO_METHOD_OSS|AUDIO_METHOD_ALSA,
- NULL, AUDIO_METHOD_TEXT, AUDIO_METHOD_LONGTEXT, VLC_TRUE );
- add_bool( CFG_PREFIX "stereo", VLC_TRUE, NULL, STEREO_TEXT, STEREO_LONGTEXT,
- VLC_TRUE );
- add_integer( CFG_PREFIX "samplerate", 48000, NULL, SAMPLERATE_TEXT,
- SAMPLERATE_LONGTEXT, VLC_TRUE );
- add_integer( CFG_PREFIX "caching", DEFAULT_PTS_DELAY / 1000, NULL,
- CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
-
- set_section( N_( "Tuner" ), NULL );
+ AUDIO_INPUT_LONGTEXT, true )
+ add_integer( CFG_PREFIX "io", IO_METHOD_AUTO, NULL, IOMETHOD_TEXT,
+ IOMETHOD_LONGTEXT, true )
+ change_integer_list( i_iomethod_list, psz_iomethod_list_text, NULL )
+ add_integer( CFG_PREFIX "width", DEFAULT_WIDTH, NULL, WIDTH_TEXT,
+ WIDTH_LONGTEXT, true )
+ add_integer( CFG_PREFIX "height", DEFAULT_HEIGHT, NULL, HEIGHT_TEXT,
+ HEIGHT_LONGTEXT, true )
+ add_string( CFG_PREFIX "aspect-ratio", "4:3", NULL, ASPECT_TEXT,
+ ASPECT_LONGTEXT, true )
+ add_float( CFG_PREFIX "fps", 0, NULL, FPS_TEXT, FPS_LONGTEXT, true )
+ add_integer( CFG_PREFIX "caching", 50 /* ms */, NULL,
+ CACHING_TEXT, CACHING_LONGTEXT, true )
+#ifdef HAVE_LIBV4L2
+ add_bool( CFG_PREFIX "use-libv4l2", false, NULL, LIBV4L2_TEXT, LIBV4L2_LONGTEXT, true );
+#endif
+
+ set_section( N_( "Tuner" ), NULL )
add_integer( CFG_PREFIX "tuner", 0, NULL, TUNER_TEXT, TUNER_LONGTEXT,
- VLC_TRUE );
+ true )
add_integer( CFG_PREFIX "tuner-frequency", -1, NULL, FREQUENCY_TEXT,
- FREQUENCY_LONGTEXT, VLC_TRUE );
+ FREQUENCY_LONGTEXT, true )
add_integer( CFG_PREFIX "tuner-audio-mode", -1, NULL, TUNER_AUDIO_MODE_TEXT,
- TUNER_AUDIO_MODE_LONGTEXT, VLC_TRUE );
+ TUNER_AUDIO_MODE_LONGTEXT, true )
change_integer_list( i_tuner_audio_modes_list,
- psz_tuner_audio_modes_list_text, 0 );
+ psz_tuner_audio_modes_list_text, 0 )
set_section( N_( "Controls" ),
- N_( "v4l2 driver controls, if supported by your v4l2 driver." ) );
- add_bool( CFG_PREFIX "controls-reset", VLC_FALSE, NULL, CTRL_RESET_TEXT,
- CTRL_RESET_LONGTEXT, VLC_TRUE );
+ N_( "v4l2 driver controls, if supported by your v4l2 driver." ) )
+ add_bool( CFG_PREFIX "controls-reset", false, NULL, CTRL_RESET_TEXT,
+ CTRL_RESET_LONGTEXT, true )
add_integer( CFG_PREFIX "brightness", -1, NULL, BRIGHTNESS_TEXT,
- BRIGHTNESS_LONGTEXT, VLC_TRUE );
+ BRIGHTNESS_LONGTEXT, true )
add_integer( CFG_PREFIX "contrast", -1, NULL, CONTRAST_TEXT,
- CONTRAST_LONGTEXT, VLC_TRUE );
+ CONTRAST_LONGTEXT, true )
add_integer( CFG_PREFIX "saturation", -1, NULL, SATURATION_TEXT,
- SATURATION_LONGTEXT, VLC_TRUE );
+ SATURATION_LONGTEXT, true )
add_integer( CFG_PREFIX "hue", -1, NULL, HUE_TEXT,
- HUE_LONGTEXT, VLC_TRUE );
+ HUE_LONGTEXT, true )
add_integer( CFG_PREFIX "black-level", -1, NULL, BLACKLEVEL_TEXT,
- BLACKLEVEL_LONGTEXT, VLC_TRUE );
+ BLACKLEVEL_LONGTEXT, true )
add_integer( CFG_PREFIX "auto-white-balance", -1, NULL,
- AUTOWHITEBALANCE_TEXT, AUTOWHITEBALANCE_LONGTEXT, VLC_TRUE );
+ AUTOWHITEBALANCE_TEXT, AUTOWHITEBALANCE_LONGTEXT, true )
add_integer( CFG_PREFIX "do-white-balance", -1, NULL, DOWHITEBALANCE_TEXT,
- DOWHITEBALANCE_LONGTEXT, VLC_TRUE );
+ DOWHITEBALANCE_LONGTEXT, true )
add_integer( CFG_PREFIX "red-balance", -1, NULL, REDBALANCE_TEXT,
- REDBALANCE_LONGTEXT, VLC_TRUE );
+ REDBALANCE_LONGTEXT, true )
add_integer( CFG_PREFIX "blue-balance", -1, NULL, BLUEBALANCE_TEXT,
- BLUEBALANCE_LONGTEXT, VLC_TRUE );
+ BLUEBALANCE_LONGTEXT, true )
add_integer( CFG_PREFIX "gamma", -1, NULL, GAMMA_TEXT,
- GAMMA_LONGTEXT, VLC_TRUE );
+ GAMMA_LONGTEXT, true )
add_integer( CFG_PREFIX "exposure", -1, NULL, EXPOSURE_TEXT,
- EXPOSURE_LONGTEXT, VLC_TRUE );
+ EXPOSURE_LONGTEXT, true )
add_integer( CFG_PREFIX "autogain", -1, NULL, AUTOGAIN_TEXT,
- AUTOGAIN_LONGTEXT, VLC_TRUE );
+ AUTOGAIN_LONGTEXT, true )
add_integer( CFG_PREFIX "gain", -1, NULL, GAIN_TEXT,
- GAIN_LONGTEXT, VLC_TRUE );
+ GAIN_LONGTEXT, true )
add_integer( CFG_PREFIX "hflip", -1, NULL, HFLIP_TEXT,
- HFLIP_LONGTEXT, VLC_TRUE );
+ HFLIP_LONGTEXT, true )
add_integer( CFG_PREFIX "vflip", -1, NULL, VFLIP_TEXT,
- VFLIP_LONGTEXT, VLC_TRUE );
+ VFLIP_LONGTEXT, true )
add_integer( CFG_PREFIX "hcenter", -1, NULL, HCENTER_TEXT,
- HCENTER_LONGTEXT, VLC_TRUE );
+ HCENTER_LONGTEXT, true )
add_integer( CFG_PREFIX "vcenter", -1, NULL, VCENTER_TEXT,
- VCENTER_LONGTEXT, VLC_TRUE );
+ VCENTER_LONGTEXT, true )
add_integer( CFG_PREFIX "audio-volume", -1, NULL, AUDIO_VOLUME_TEXT,
- AUDIO_VOLUME_LONGTEXT, VLC_TRUE );
+ AUDIO_VOLUME_LONGTEXT, true )
add_integer( CFG_PREFIX "audio-balance", -1, NULL, AUDIO_BALANCE_TEXT,
- AUDIO_BALANCE_LONGTEXT, VLC_TRUE );
- add_bool( CFG_PREFIX "audio-mute", VLC_FALSE, NULL, AUDIO_MUTE_TEXT,
- AUDIO_MUTE_LONGTEXT, VLC_TRUE );
+ AUDIO_BALANCE_LONGTEXT, true )
+ add_bool( CFG_PREFIX "audio-mute", false, NULL, AUDIO_MUTE_TEXT,
+ AUDIO_MUTE_LONGTEXT, true )
add_integer( CFG_PREFIX "audio-bass", -1, NULL, AUDIO_BASS_TEXT,
- AUDIO_BASS_LONGTEXT, VLC_TRUE );
+ AUDIO_BASS_LONGTEXT, true )
add_integer( CFG_PREFIX "audio-treble", -1, NULL, AUDIO_TREBLE_TEXT,
- AUDIO_TREBLE_LONGTEXT, VLC_TRUE );
+ AUDIO_TREBLE_LONGTEXT, true )
add_integer( CFG_PREFIX "audio-loudness", -1, NULL, AUDIO_LOUDNESS_TEXT,
- AUDIO_LOUDNESS_LONGTEXT, VLC_TRUE );
+ AUDIO_LOUDNESS_LONGTEXT, true )
add_string( CFG_PREFIX "set-ctrls", NULL, NULL, S_CTRLS_TEXT,
- S_CTRLS_LONGTEXT, VLC_TRUE );
+ S_CTRLS_LONGTEXT, true )
+
+ add_obsolete_string( CFG_PREFIX "dev" )
- add_shortcut( "v4l2" );
- set_capability( "access_demux", 10 );
- set_callbacks( DemuxOpen, DemuxClose );
+ add_obsolete_string( CFG_PREFIX "adev" )
+ add_obsolete_integer( CFG_PREFIX "audio-method" )
+ add_obsolete_bool( CFG_PREFIX "stereo" )
+ add_obsolete_integer( CFG_PREFIX "samplerate" )
- add_submodule();
- add_shortcut( "v4l2c" );
- set_description( _("Video4Linux2 Compressed A/V") );
- set_capability( "access2", 0 );
+ add_shortcut( "v4l2" )
+ set_capability( "access_demux", 10 )
+ set_callbacks( DemuxOpen, DemuxClose )
+
+ add_submodule ()
+ add_shortcut( "v4l2", "v4l2c" )
+ set_description( N_("Video4Linux2 Compressed A/V") )
+ set_capability( "access", 0 )
/* use these when open as access_demux fails; VLC will use another demux */
- set_callbacks( AccessOpen, AccessClose );
+ set_callbacks( AccessOpen, AccessClose )
-vlc_module_end();
+vlc_module_end ()
/*****************************************************************************
* Access: local prototypes
static int AccessControl( access_t *, int, va_list );
static int Demux( demux_t * );
-static ssize_t AccessRead( access_t *, uint8_t *, size_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( demux_t *p_demux );
-static block_t* ProcessVideoFrame( demux_t *p_demux, uint8_t *p_frame, size_t );
-static block_t* GrabAudio( demux_t *p_demux );
+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 vlc_bool_t IsPixelFormatSupported( demux_t *p_demux,
+static bool IsPixelFormatSupported( demux_t *p_demux,
unsigned int i_pixelformat );
-#ifdef HAVE_ALSA
-static char* ResolveALSADeviceName( const char *psz_device );
-#endif
-static int OpenVideoDev( vlc_object_t *, demux_sys_t *, vlc_bool_t );
-static int OpenAudioDev( vlc_object_t *, demux_sys_t *, vlc_bool_t );
-static vlc_bool_t ProbeVideoDev( vlc_object_t *, demux_sys_t *,
- char *psz_device );
-static vlc_bool_t ProbeAudioDev( vlc_object_t *, demux_sys_t *,
- char *psz_device );
-
-static int ControlList( vlc_object_t *, int , vlc_bool_t, vlc_bool_t );
-static int Control( vlc_object_t *, int i_fd,
+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,
const char *psz_var, vlc_value_t oldval,
vlc_value_t newval, void *p_data );
-static struct
+static const struct
{
unsigned int i_v4l2;
- int i_fourcc;
+ vlc_fourcc_t i_fourcc;
+ int i_rmask;
+ int i_gmask;
+ int i_bmask;
} v4l2chroma_to_fourcc[] =
{
/* Raw data types */
- { V4L2_PIX_FMT_GREY, VLC_FOURCC('G','R','E','Y') },
- { V4L2_PIX_FMT_HI240, VLC_FOURCC('I','2','4','0') },
- { V4L2_PIX_FMT_RGB565, VLC_FOURCC('R','V','1','6') },
- { V4L2_PIX_FMT_RGB555, VLC_FOURCC('R','V','1','5') },
- { V4L2_PIX_FMT_BGR24, VLC_FOURCC('R','V','2','4') },
- { V4L2_PIX_FMT_BGR32, VLC_FOURCC('R','V','3','2') },
- { V4L2_PIX_FMT_YUYV, VLC_FOURCC('Y','U','Y','2') },
- { V4L2_PIX_FMT_YUYV, VLC_FOURCC('Y','U','Y','V') },
- { V4L2_PIX_FMT_UYVY, VLC_FOURCC('U','Y','V','Y') },
- { V4L2_PIX_FMT_Y41P, VLC_FOURCC('I','4','1','N') },
- { V4L2_PIX_FMT_YUV422P, VLC_FOURCC('I','4','2','2') },
- { V4L2_PIX_FMT_YVU420, VLC_FOURCC('Y','V','1','2') },
- { V4L2_PIX_FMT_YUV411P, VLC_FOURCC('I','4','1','1') },
- { V4L2_PIX_FMT_YUV410, VLC_FOURCC('I','4','1','0') },
+ { V4L2_PIX_FMT_GREY, VLC_CODEC_GREY, 0, 0, 0 },
+ { V4L2_PIX_FMT_HI240, VLC_FOURCC('I','2','4','0'), 0, 0, 0 },
+ { V4L2_PIX_FMT_RGB555, VLC_CODEC_RGB15, 0x001f,0x03e0,0x7c00 },
+ { V4L2_PIX_FMT_RGB565, VLC_CODEC_RGB16, 0x001f,0x07e0,0xf800 },
+ /* Won't work since we don't know how to handle such gmask values
+ * correctly
+ { V4L2_PIX_FMT_RGB555X, VLC_CODEC_RGB15, 0x007c,0xe003,0x1f00 },
+ { V4L2_PIX_FMT_RGB565X, VLC_CODEC_RGB16, 0x00f8,0xe007,0x1f00 },
+ */
+ { V4L2_PIX_FMT_BGR24, VLC_CODEC_RGB24, 0xff0000,0xff00,0xff },
+ { V4L2_PIX_FMT_RGB24, VLC_CODEC_RGB24, 0xff,0xff00,0xff0000 },
+ { V4L2_PIX_FMT_BGR32, VLC_CODEC_RGB32, 0xff0000,0xff00,0xff },
+ { V4L2_PIX_FMT_RGB32, VLC_CODEC_RGB32, 0xff,0xff00,0xff0000 },
+ { V4L2_PIX_FMT_YUYV, VLC_CODEC_YUYV, 0, 0, 0 },
+ { V4L2_PIX_FMT_UYVY, VLC_CODEC_UYVY, 0, 0, 0 },
+ { V4L2_PIX_FMT_Y41P, VLC_FOURCC('I','4','1','N'), 0, 0, 0 },
+ { V4L2_PIX_FMT_YUV422P, VLC_CODEC_I422, 0, 0, 0 },
+ { V4L2_PIX_FMT_YVU420, VLC_CODEC_YV12, 0, 0, 0 },
+ { V4L2_PIX_FMT_YUV411P, VLC_CODEC_I411, 0, 0, 0 },
+ { V4L2_PIX_FMT_YUV410, VLC_CODEC_I410, 0, 0, 0 },
/* Raw data types, not in V4L2 spec but still in videodev2.h and supported
* by VLC */
- { V4L2_PIX_FMT_YUV420, VLC_FOURCC('I','4','2','0') },
- /* FIXME { V4L2_PIX_FMT_RGB444, VLC_FOURCC('R','V','3','2') }, */
+ { V4L2_PIX_FMT_YUV420, VLC_CODEC_I420, 0, 0, 0 },
+ /* FIXME { V4L2_PIX_FMT_RGB444, VLC_CODEC_RGB32 }, */
/* Compressed data types */
- { V4L2_PIX_FMT_MJPEG, VLC_FOURCC('M','J','P','G') },
+ { V4L2_PIX_FMT_MJPEG, VLC_CODEC_MJPG, 0, 0, 0 },
+ { V4L2_PIX_FMT_JPEG, VLC_CODEC_JPEG, 0, 0, 0 },
#if 0
- { V4L2_PIX_FMT_JPEG, VLC_FOURCC('J','P','E','G') },
{ V4L2_PIX_FMT_DV, VLC_FOURCC('?','?','?','?') },
{ V4L2_PIX_FMT_MPEG, VLC_FOURCC('?','?','?','?') },
#endif
- { 0, 0 }
+ { 0, 0, 0, 0, 0 }
};
/**
* 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.
*/
-static const __u32 p_chroma_fallbacks[] =
+static const uint32_t p_chroma_fallbacks[] =
{ V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_YVU420, V4L2_PIX_FMT_YUV422P,
- V4L2_PIX_FMT_YUYV, V4L2_PIX_FMT_MJPEG };
+ V4L2_PIX_FMT_YUYV, V4L2_PIX_FMT_UYVY, V4L2_PIX_FMT_BGR24,
+ V4L2_PIX_FMT_BGR32, V4L2_PIX_FMT_MJPEG, V4L2_PIX_FMT_JPEG };
-static struct
+static const struct
{
const char *psz_name;
unsigned int i_cid;
{
void * start;
size_t length;
- void * orig_userp;
};
struct demux_sys_t
{
- char *psz_device; /* Main device from MRL, can be video or audio */
-
- char *psz_vdev;
- int i_fd_video;
-
- char *psz_adev;
- int i_fd_audio;
+ char *psz_device; /* Main device from MRL */
+ int i_fd;
char *psz_requested_chroma;
/* Video */
io_method io;
- int i_pts;
+ int i_cache;
struct v4l2_capability dev_cap;
int i_width;
int i_height;
+ unsigned int i_aspect;
float f_fps; /* <= 0.0 mean to grab at full rate */
mtime_t i_video_pts; /* only used when f_fps > 0 */
int i_fourcc;
+ uint32_t i_block_flags;
- es_out_id_t *p_es_video;
-
- /* Audio */
- unsigned int i_sample_rate;
- vlc_bool_t b_stereo;
- size_t i_audio_max_frame_size;
- block_t *p_block_audio;
- es_out_id_t *p_es_audio;
-
- int i_audio_method;
-
-#ifdef HAVE_ALSA
- /* ALSA Audio */
- snd_pcm_t *p_alsa_pcm;
- size_t i_alsa_frame_size;
- int i_alsa_chunk_size;
-#endif
+ es_out_id_t *p_es;
/* Tuner */
int i_cur_tuner;
/* Controls */
char *psz_set_ctrls;
-};
-static int FindMainDevice( vlc_object_t *p_this, demux_sys_t *p_sys,
- int i_flags, vlc_bool_t b_demux,
- vlc_bool_t b_forced )
-{
- /* Find main device (video or audio) */
- if( p_sys->psz_device && *p_sys->psz_device )
- {
- msg_Dbg( p_this, "main device='%s'", p_sys->psz_device );
-
- vlc_bool_t b_maindevice_is_video = VLC_FALSE;
-
- /* Try to open as video device */
- if( i_flags & FIND_VIDEO )
- {
- msg_Dbg( p_this, "trying device '%s' as video", p_sys->psz_device );
- if( ProbeVideoDev( p_this, p_sys, p_sys->psz_device ) )
- {
- msg_Dbg( p_this, "'%s' is a video device", p_sys->psz_device );
- /* Device was a video device */
- if( p_sys->psz_vdev ) free( p_sys->psz_vdev );
- p_sys->psz_vdev = p_sys->psz_device;
- p_sys->psz_device = NULL;
- p_sys->i_fd_video = OpenVideoDev( p_this, p_sys, b_demux );
- if( p_sys->i_fd_video < 0 )
- return VLC_EGENERIC;
- b_maindevice_is_video = VLC_TRUE;
- /* If successful we carry on to try the audio if access is forced */
- }
- }
- /* Try to open as audio device only if main device was not detected as video above */
- if( i_flags & FIND_AUDIO && !b_maindevice_is_video )
- {
- msg_Dbg( p_this, "trying device '%s' as audio", p_sys->psz_device );
- if( ProbeAudioDev( p_this, p_sys, p_sys->psz_device ) )
- {
- msg_Dbg( p_this, "'%s' is an audio device", p_sys->psz_device );
- /* Device was an audio device */
- free( p_sys->psz_adev );
- p_sys->psz_adev = p_sys->psz_device;
- p_sys->psz_device = NULL;
- p_sys->i_fd_audio = OpenAudioDev( p_this, p_sys, b_demux );
- if( p_sys->i_fd_audio < 0 )
- return VLC_EGENERIC;
- /* If successful we carry on to try the video if access is forced */
- }
- }
- }
+#ifdef HAVE_LIBV4L2
+ /* */
+ int (*pf_open)(const char *, int, ...);
+ int (*pf_close)( int );
+ int (*pf_dup)( int );
+ int (*pf_ioctl)( int, unsigned long int, ... );
+ ssize_t (*pf_read)( int, void *, size_t );
+ void *(*pf_mmap)( void *, size_t, int, int, int, off_t );
+ int (*pf_munmap)( void *, size_t );
+ bool b_libv4l2;
+#endif
+};
- /* If no device opened, only continue if the access was forced */
- if( b_forced == VLC_FALSE
- && !( ( i_flags & FIND_VIDEO && p_sys->i_fd_video >= 0 )
- || ( i_flags & FIND_AUDIO && p_sys->i_fd_audio >= 0 ) ) )
- {
- return VLC_EGENERIC;
- }
+#ifdef HAVE_LIBV4L2
+static void use_kernel_v4l2( demux_sys_t *p_sys )
+{
+ p_sys->pf_open = vlc_open;
+ p_sys->pf_close = close;
+ p_sys->pf_dup = dup;
+ p_sys->pf_ioctl = ioctl;
+ p_sys->pf_read = read;
+ p_sys->pf_mmap = mmap;
+ p_sys->pf_munmap = munmap;
+ p_sys->b_libv4l2 = false;
+}
- /* Find video device */
- if( i_flags & FIND_VIDEO && p_sys->i_fd_video < 0 )
- {
- if( !p_sys->psz_vdev || !*p_sys->psz_vdev )
- {
- if( p_sys->psz_vdev ) free( p_sys->psz_vdev );
- p_sys->psz_vdev = var_CreateGetString( p_this, "v4l2-dev" );
- }
+static void use_libv4l2( demux_sys_t *p_sys )
+{
+ p_sys->pf_open = v4l2_open;
+ p_sys->pf_close = v4l2_close;
+ p_sys->pf_dup = v4l2_dup;
+ p_sys->pf_ioctl = v4l2_ioctl;
+ p_sys->pf_read = v4l2_read;
+ p_sys->pf_mmap = v4l2_mmap;
+ p_sys->pf_munmap = v4l2_munmap;
+ p_sys->b_libv4l2 = true;
+}
- msg_Dbg( p_this, "opening '%s' as video", p_sys->psz_vdev );
- if( p_sys->psz_vdev && *p_sys->psz_vdev
- && ProbeVideoDev( p_this, p_sys, p_sys->psz_vdev ) )
- {
- p_sys->i_fd_video = OpenVideoDev( p_this, p_sys, b_demux );
- }
- }
+# define v4l2_open (p_sys->pf_open)
+# define v4l2_close (p_sys->pf_close)
+# define v4l2_dup (p_sys->pf_dup)
+# define v4l2_ioctl (p_sys->pf_ioctl)
+# define v4l2_read (p_sys->pf_read)
+# define v4l2_mmap (p_sys->pf_mmap)
+# define v4l2_munmap (p_sys->pf_munmap)
+#else
+# 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
+#endif
- /* Find audio device */
- if( i_flags & FIND_AUDIO && p_sys->i_fd_audio < 0 )
+static int FindMainDevice( vlc_object_t *p_this, demux_sys_t *p_sys,
+ bool b_demux )
+{
+ /* TODO: if using default device, loop through all /dev/video* until
+ * one works */
+ msg_Dbg( p_this, "opening device '%s'", p_sys->psz_device );
+ if( ProbeVideoDev( p_this, p_sys, p_sys->psz_device ) )
{
- if( !p_sys->psz_adev )
- {
- p_sys->psz_adev = var_CreateGetNonEmptyString( p_this, "v4l2-adev" );
- }
-
- msg_Dbg( p_this, "opening '%s' as audio", p_sys->psz_adev );
- if( ProbeAudioDev( p_this, p_sys, p_sys->psz_adev ) )
- {
- p_sys->i_fd_audio = OpenAudioDev( p_this, p_sys, b_demux );
- }
+ msg_Dbg( p_this, "'%s' is a video device", p_sys->psz_device );
+ p_sys->i_fd = OpenVideoDev( p_this, p_sys, b_demux );
}
- if( !( ( i_flags & FIND_VIDEO && p_sys->i_fd_video >= 0 )
- || ( i_flags & FIND_AUDIO && p_sys->i_fd_audio >= 0 ) ) )
- {
- return VLC_EGENERIC;
- }
+ if( p_sys->i_fd < 0 ) return VLC_EGENERIC;
return VLC_SUCCESS;
}
demux_sys_t *p_sys;
/* Only when selected */
- if( *p_demux->psz_access == '\0' ) return VLC_EGENERIC;
+ if( strcmp( p_demux->psz_access, "v4l2" ) )
+ return VLC_EGENERIC;
/* Set up p_demux */
p_demux->pf_control = DemuxControl;
GetV4L2Params(p_sys, (vlc_object_t *) p_demux);
- ParseMRL( p_sys, p_demux->psz_path, (vlc_object_t *) p_demux );
+ ParseMRL( p_sys, p_demux->psz_location, (vlc_object_t *) p_demux );
-#ifdef HAVE_ALSA
- /* Alsa support available? */
- msg_Dbg( p_demux, "ALSA input support available" );
-#endif
-
- if( FindMainDevice( p_this, p_sys, FIND_VIDEO|FIND_AUDIO,
- VLC_TRUE, !strncmp( p_demux->psz_access, "v4l2", 4 ) ) != VLC_SUCCESS )
+#ifdef HAVE_LIBV4L2
+ if( !var_InheritBool( p_this, CFG_PREFIX "use-libv4l2" ) )
{
- DemuxClose( p_this );
- return VLC_EGENERIC;
+ msg_Dbg( p_this, "Trying direct kernel v4l2" );
+ use_kernel_v4l2( p_sys );
+ if( FindMainDevice( p_this, p_sys, true ) == VLC_SUCCESS)
+ return VLC_SUCCESS;
}
- return VLC_SUCCESS;
+ msg_Dbg( p_this, "Trying libv4l2 wrapper" );
+ use_libv4l2( p_sys );
+#endif
+ if( FindMainDevice( p_this, p_sys, true ) == VLC_SUCCESS)
+ return VLC_SUCCESS;
+
+ DemuxClose( p_this );
+ return VLC_EGENERIC;
}
/*****************************************************************************
p_sys->i_width = var_CreateGetInteger( p_obj, "v4l2-width" );
p_sys->i_height = var_CreateGetInteger( p_obj, "v4l2-height" );
- var_CreateGetBool( p_obj, "v4l2-controls-reset" );
+ var_Create( p_obj, "v4l2-controls-reset", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
p_sys->f_fps = var_CreateGetFloat( p_obj, "v4l2-fps" );
- p_sys->i_sample_rate = var_CreateGetInteger( p_obj, "v4l2-samplerate" );
p_sys->psz_requested_chroma = var_CreateGetString( p_obj, "v4l2-chroma" );
- p_sys->i_audio_method = var_CreateGetInteger( p_obj, "v4l2-audio-method" );
-
- p_sys->b_stereo = var_CreateGetBool( p_obj, "v4l2-stereo" );
-
- p_sys->i_pts = var_CreateGetInteger( p_obj, "v4l2-caching" );
+ p_sys->i_cache = var_CreateGetInteger( p_obj, "v4l2-caching" );
p_sys->i_cur_tuner = var_CreateGetInteger( p_obj, "v4l2-tuner" );
p_sys->i_frequency = var_CreateGetInteger( p_obj, "v4l2-tuner-frequency" );
p_sys->psz_set_ctrls = var_CreateGetString( p_obj, "v4l2-set-ctrls" );
- p_sys->psz_device = p_sys->psz_vdev = p_sys->psz_adev = NULL;
- p_sys->i_fd_video = -1;
- p_sys->i_fd_audio = -1;
+ char *psz_aspect = var_CreateGetString( p_obj, "v4l2-aspect-ratio" );
+ char *psz_delim = !EMPTY_STR(psz_aspect) ? strchr( psz_aspect, ':' ) : NULL;
+ if( psz_delim )
+ {
+ p_sys->i_aspect = atoi( psz_aspect ) * VOUT_ASPECT_FACTOR / atoi( psz_delim + 1 );
+ }
+ else
+ {
+ p_sys->i_aspect = 4 * VOUT_ASPECT_FACTOR / 3 ;
+
+ }
+ free( psz_aspect );
+
+ p_sys->psz_device = NULL;
+ p_sys->i_fd = -1;
- p_sys->p_es_video = p_sys->p_es_audio = 0;
- p_sys->p_block_audio = 0;
+ p_sys->p_es = NULL;
}
/*****************************************************************************
{
*psz_parser++ = '\0';
- if( !strncmp( psz_parser, "adev=", strlen( "adev=" ) ) )
- {
- int i_len;
-
- psz_parser += strlen( "adev=" );
- if( strchr( psz_parser, ':' ) )
- {
- i_len = strchr( psz_parser, ':' ) - psz_parser;
- }
- else
- {
- i_len = strlen( psz_parser );
- }
-
- p_sys->psz_adev = strndup( psz_parser, i_len );
- if( !*p_sys->psz_adev )
- {
- free( p_sys->psz_adev );
- p_sys->psz_adev = NULL;
- }
-
- psz_parser += i_len;
- }
- else if( !strncmp( psz_parser, "standard=", strlen( "standard=" ) ) )
+ if( !strncmp( psz_parser, "standard=", strlen( "standard=" ) ) )
{
psz_parser += strlen( "standard=" );
- if( !strncmp( psz_parser, "pal", strlen( "pal" ) ) )
+ size_t i;
+ for( i = 0; i < ARRAY_SIZE(psz_standards_list_text); i++ )
{
- p_sys->i_selected_standard_id = V4L2_STD_PAL;
- psz_parser += strlen( "pal" );
- }
- else if( !strncmp( psz_parser, "ntsc", strlen( "ntsc" ) ) )
- {
- p_sys->i_selected_standard_id = V4L2_STD_NTSC;
- psz_parser += strlen( "ntsc" );
- }
- else if( !strncmp( psz_parser, "secam", strlen( "secam" ) ) )
- {
- p_sys->i_selected_standard_id = V4L2_STD_SECAM;
- psz_parser += strlen( "secam" );
- }
- else if( !strncmp( psz_parser, "default", strlen( "default" ) ) )
- {
- p_sys->i_selected_standard_id = V4L2_STD_UNKNOWN;
- psz_parser += strlen( "default" );
+ const char *psz_value = psz_standards_list_text[i];
+ size_t i_len = strlen( psz_value );
+ if( !strncasecmp( psz_parser, psz_value, i_len ) &&
+ ( psz_parser[i_len] == ':' || psz_parser[i_len] == 0 ) )
+ {
+ p_sys->i_selected_standard_id = i_standards_list[i];
+ psz_parser += i_len;
+ break;
+ }
}
- else
- {
+
+ if( i == ARRAY_SIZE(psz_standards_list_text) )
p_sys->i_selected_standard_id = i_standards_list[strtol( psz_parser, &psz_parser, 0 )];
- }
}
else if( !strncmp( psz_parser, "chroma=", strlen( "chroma=" ) ) )
{
i_len = strlen( psz_parser );
}
- if( p_sys->psz_requested_chroma ) free( p_sys->psz_requested_chroma );
+ free( p_sys->psz_requested_chroma );
p_sys->psz_requested_chroma = strndup( psz_parser, i_len );
psz_parser += i_len;
}
else if( !strncmp( psz_parser, "fps=", strlen( "fps=" ) ) )
{
- p_sys->f_fps = strtof( psz_parser + strlen( "fps=" ),
- &psz_parser );
+ p_sys->f_fps = us_strtof( psz_parser + strlen( "fps=" ),
+ &psz_parser );
}
else if( !strncmp( psz_parser, "io=", strlen( "io=" ) ) )
{
p_sys->io = IO_METHOD_USERPTR;
psz_parser += strlen( "userptr" );
}
+ else if( !strncmp( psz_parser, "auto", strlen( "auto" ) ) )
+ {
+ p_sys->io = IO_METHOD_AUTO;
+ psz_parser += strlen( "auto" );
+ }
else
{
p_sys->io = strtol( psz_parser, &psz_parser, 0 );
strtol( psz_parser + strlen( "height=" ),
&psz_parser, 0 );
}
+ else if( !strncmp( psz_parser, "aspect-ratio=",
+ strlen( "aspect-ratio=" ) ) )
+ {
+ unsigned int num,den;
+ num = strtol( psz_parser + strlen( "aspect-ratio=" ),
+ &psz_parser, 0 );
+ den = strtol( psz_parser + strlen( ":" ),
+ &psz_parser, 0 );
+ if( num && den )
+ p_sys->i_aspect = num * VOUT_ASPECT_FACTOR / den;
+ }
else if( !strncmp( psz_parser, "controls-reset",
strlen( "controls-reset" ) ) )
{
- var_SetBool( p_obj, "v4l2-controls-reset", VLC_TRUE );
+ var_SetBool( p_obj, "v4l2-controls-reset", true );
psz_parser += strlen( "controls-reset" );
}
#if 0
&psz_parser, 0 ) );
}
#endif
- else if( !strncmp( psz_parser, "samplerate=",
- strlen( "samplerate=" ) ) )
- {
- p_sys->i_sample_rate =
- strtol( psz_parser + strlen( "samplerate=" ),
- &psz_parser, 0 );
- }
- else if( !strncmp( psz_parser, "audio-method", strlen( "audio-method" ) ) )
- {
- p_sys->i_audio_method =
- strtol( psz_parser + strlen( "audio-method" ),
- &psz_parser, 0 );
- }
- else if( !strncmp( psz_parser, "stereo", strlen( "stereo" ) ) )
- {
- psz_parser += strlen( "stereo" );
- p_sys->b_stereo = VLC_TRUE;
- }
- else if( !strncmp( psz_parser, "mono", strlen( "mono" ) ) )
- {
- psz_parser += strlen( "mono" );
- p_sys->b_stereo = VLC_FALSE;
- }
else if( !strncmp( psz_parser, "caching=", strlen( "caching=" ) ) )
{
- p_sys->i_pts = strtol( psz_parser + strlen( "caching=" ),
- &psz_parser, 0 );
+ p_sys->i_cache = strtol( psz_parser + strlen( "caching=" ),
+ &psz_parser, 0 );
}
else if( !strncmp( psz_parser, "tuner=", strlen( "tuner=" ) ) )
{
psz_parser += i_len;
}
+ else if( !strncmp( psz_parser, "adev=", strlen( "adev=" ) )
+ || !strncmp( psz_parser, "samplerate=", strlen( "samplerate=" ) )
+ || !strncmp( psz_parser, "audio-method", strlen( "audio-method" ) )
+ || !strncmp( psz_parser, "stereo", strlen( "stereo" ) )
+ || !strncmp( psz_parser, "mono", strlen( "mono" ) ) )
+ {
+ if( strchr( psz_parser, ':' ) )
+ {
+ psz_parser = strchr( psz_parser, ':' );
+ }
+ else
+ {
+ psz_parser += strlen( psz_parser );
+ }
+
+ msg_Err( p_obj, AUDIO_DEPRECATED_ERROR );
+ }
else
{
char *psz_unk = strchr( psz_parser, ':' );
/* Main device */
if( *psz_dup )
- {
p_sys->psz_device = strdup( psz_dup );
- }
- if( psz_dup ) free( psz_dup );
+ else
+ p_sys->psz_device = strdup( V4L2_DEFAULT );
+ free( psz_dup );
}
/*****************************************************************************
demux_sys_t *p_sys = p_demux->p_sys;
/* Stop video capture */
- if( p_sys->i_fd_video >= 0 )
+ if( p_sys->i_fd >= 0 )
{
switch( p_sys->io )
{
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
buf.memory = ( p_sys->io == IO_METHOD_USERPTR ) ?
V4L2_MEMORY_USERPTR : V4L2_MEMORY_MMAP;
- ioctl( p_sys->i_fd_video, VIDIOC_DQBUF, &buf ); /* ignore result */
+ v4l2_ioctl( p_sys->i_fd, VIDIOC_DQBUF, &buf ); /* ignore result */
}
buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if( ioctl( p_sys->i_fd_video, VIDIOC_STREAMOFF, &buf_type ) < 0 ) {
+ if( v4l2_ioctl( p_sys->i_fd, VIDIOC_STREAMOFF, &buf_type ) < 0 ) {
msg_Err( p_this, "VIDIOC_STREAMOFF failed" );
}
break;
+
+ default:
+ break;
}
}
case IO_METHOD_MMAP:
for( i = 0; i < p_sys->i_nbuffers; ++i )
{
- if( munmap( p_sys->p_buffers[i].start, p_sys->p_buffers[i].length ) )
+ if( v4l2_munmap( p_sys->p_buffers[i].start, p_sys->p_buffers[i].length ) )
{
msg_Err( p_this, "munmap failed" );
}
case IO_METHOD_USERPTR:
for( i = 0; i < p_sys->i_nbuffers; ++i )
{
- free( p_sys->p_buffers[i].orig_userp );
+ free( p_sys->p_buffers[i].start );
}
break;
+
+ default:
+ break;
}
free( p_sys->p_buffers );
}
static void CommonClose( vlc_object_t *p_this, demux_sys_t *p_sys )
{
+ (void)p_this;
/* Close */
- if( p_sys->i_fd_video >= 0 ) close( p_sys->i_fd_video );
-#ifdef HAVE_ALSA
- if( p_sys->p_alsa_pcm )
- {
- snd_pcm_close( p_sys->p_alsa_pcm );
- p_sys->i_fd_audio = -1;
- }
-#endif
- if( p_sys->i_fd_audio >= 0 ) close( p_sys->i_fd_audio );
-
- if( p_sys->p_block_audio ) block_Release( p_sys->p_block_audio );
+ if( p_sys->i_fd >= 0 ) v4l2_close( p_sys->i_fd );
free( p_sys->psz_device );
- free( p_sys->psz_vdev );
- free( p_sys->psz_adev );
free( p_sys->p_standards );
free( p_sys->p_inputs );
free( p_sys->p_tuners );
}
/*****************************************************************************
- * AccessOpen: opens v4l2 device, access2 callback
+ * AccessOpen: opens v4l2 device, access callback
*****************************************************************************
*
* url: <video device>::::
/* Only when selected */
if( *p_access->psz_access == '\0' ) return VLC_EGENERIC;
- p_access->pf_read = AccessRead;
- p_access->pf_block = NULL;
- p_access->pf_seek = NULL;
- p_access->pf_control = AccessControl;
- p_access->info.i_update = 0;
- p_access->info.i_size = 0;
- p_access->info.i_pos = 0;
- p_access->info.b_eof = VLC_FALSE;
- p_access->info.i_title = 0;
- p_access->info.i_seekpoint = 0;
-
- p_sys = calloc( 1, sizeof( demux_sys_t ) );
- p_access->p_sys = (access_sys_t *) p_sys;
- if( p_sys == NULL ) return VLC_ENOMEM;
+ access_InitFields( p_access );
+ p_sys = calloc( 1, sizeof( demux_sys_t ));
+ if( !p_sys ) return VLC_ENOMEM;
+ p_access->p_sys = (access_sys_t*)p_sys;
GetV4L2Params( p_sys, (vlc_object_t *) p_access );
- ParseMRL( p_sys, p_access->psz_path, (vlc_object_t *) p_access );
+ ParseMRL( p_sys, p_access->psz_location, (vlc_object_t *) p_access );
- if( FindMainDevice( p_this, p_sys, FIND_VIDEO,
- VLC_FALSE, !strncmp( p_access->psz_access, "v4l2", 4 ) ) != VLC_SUCCESS )
+#ifdef HAVE_LIBV4L2
+ if( !var_InheritBool( p_this, CFG_PREFIX "use-libv4l2" ) )
{
- AccessClose( p_this );
- return VLC_EGENERIC;
+ msg_Dbg( p_this, "Trying direct kernel v4l2" );
+ use_kernel_v4l2( p_sys );
+ if( FindMainDevice( p_this, p_sys, false ) == VLC_SUCCESS)
+ {
+ if( p_sys->io == IO_METHOD_READ )
+ {
+ ACCESS_SET_CALLBACKS( AccessReadStream, NULL, AccessControl, NULL );
+ }
+ else
+ {
+ ACCESS_SET_CALLBACKS( NULL, AccessRead, AccessControl, NULL );
+ }
+ return VLC_SUCCESS;
+ }
}
- return VLC_SUCCESS;
+ msg_Dbg( p_this, "Trying libv4l2 wrapper" );
+ use_libv4l2( p_sys );
+#endif
+ if( FindMainDevice( p_this, p_sys, false ) == VLC_SUCCESS )
+ {
+ if( p_sys->io == IO_METHOD_READ )
+ {
+ ACCESS_SET_CALLBACKS( AccessReadStream, NULL, AccessControl, NULL );
+ }
+ else
+ {
+ ACCESS_SET_CALLBACKS( NULL, AccessRead, AccessControl, NULL );
+ }
+ return VLC_SUCCESS;
+ }
+
+ AccessClose( p_this );
+ return VLC_EGENERIC;
}
/*****************************************************************************
*****************************************************************************/
static int DemuxControl( demux_t *p_demux, int i_query, va_list args )
{
- demux_sys_t *p_sys = p_demux->p_sys;
- vlc_bool_t *pb;
- int64_t *pi64;
-
switch( i_query )
{
/* Special for access_demux */
case DEMUX_CAN_PAUSE:
case DEMUX_CAN_SEEK:
- case DEMUX_SET_PAUSE_STATE:
case DEMUX_CAN_CONTROL_PACE:
- pb = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
- *pb = VLC_FALSE;
+ *va_arg( args, bool * ) = false;
return VLC_SUCCESS;
case DEMUX_GET_PTS_DELAY:
- pi64 = (int64_t*)va_arg( args, int64_t * );
- *pi64 = (int64_t)p_sys->i_pts * 1000;
+ *va_arg(args,int64_t *) = (int64_t)p_demux->p_sys->i_cache*1000;
return VLC_SUCCESS;
case DEMUX_GET_TIME:
- pi64 = (int64_t*)va_arg( args, int64_t * );
- *pi64 = mdate();
+ *va_arg( args, int64_t * ) = mdate();
return VLC_SUCCESS;
/* TODO implement others */
}
/*****************************************************************************
- * AccessControl: access2 callback
+ * AccessControl: access callback
*****************************************************************************/
static int AccessControl( access_t *p_access, int i_query, va_list args )
{
- vlc_bool_t *pb_bool;
- int *pi_int;
- int64_t *pi_64;
demux_sys_t *p_sys = (demux_sys_t *) p_access->p_sys;
switch( i_query )
/* */
case ACCESS_CAN_SEEK:
case ACCESS_CAN_FASTSEEK:
- pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
- *pb_bool = VLC_FALSE;
- break;
case ACCESS_CAN_PAUSE:
- pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
- *pb_bool = VLC_FALSE;
- break;
case ACCESS_CAN_CONTROL_PACE:
- pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t* );
- *pb_bool = VLC_FALSE;
+ *va_arg( args, bool* ) = false;
break;
/* */
- case ACCESS_GET_MTU:
- pi_int = (int*)va_arg( args, int * );
- *pi_int = 0;
- break;
-
case ACCESS_GET_PTS_DELAY:
- pi_64 = (int64_t*)va_arg( args, int64_t * );
- *pi_64 = (int64_t) p_sys->i_pts * 1000;
+ *va_arg(args,int64_t *) = (int64_t)p_sys->i_cache*1000;
break;
/* */
}
/*****************************************************************************
- * AccessRead: access2 callback
+ * AccessRead: access callback
******************************************************************************/
-static ssize_t AccessRead( access_t * p_access, uint8_t * p_buffer, size_t i_len )
+static block_t *AccessRead( access_t * p_access )
+{
+ demux_sys_t *p_sys = (demux_sys_t *)p_access->p_sys;
+
+ struct pollfd fd;
+ fd.fd = p_sys->i_fd;
+ fd.events = POLLIN|POLLPRI;
+ fd.revents = 0;
+
+ /* Wait for data */
+ if( poll( &fd, 1, 500 ) ) /* Timeout after 0.5 seconds since I don't know if pf_demux can be blocking. */
+ {
+ if( fd.revents & (POLLIN|POLLPRI) )
+ {
+ return GrabVideo( VLC_OBJECT(p_access), p_sys );
+ }
+ }
+
+ return NULL;
+}
+
+static ssize_t AccessReadStream( access_t * p_access, uint8_t * p_buffer, size_t i_len )
{
demux_sys_t *p_sys = (demux_sys_t *) p_access->p_sys;
struct pollfd ufd;
int i_ret;
- ufd.fd = p_sys->i_fd_video;
+ ufd.fd = p_sys->i_fd;
ufd.events = POLLIN;
if( p_access->info.b_eof )
do
{
- if( p_access->b_die )
+ if( !vlc_object_alive (p_access) )
return 0;
ufd.revents = 0;
return -1;
}
- i_ret = read( p_sys->i_fd_video, p_buffer, i_len );
+ i_ret = v4l2_read( p_sys->i_fd, p_buffer, i_len );
if( i_ret == 0 )
{
- p_access->info.b_eof = VLC_TRUE;
+ p_access->info.b_eof = true;
}
else if( i_ret > 0 )
{
static int Demux( demux_t *p_demux )
{
demux_sys_t *p_sys = p_demux->p_sys;
- es_out_id_t *p_es = p_sys->p_es_audio;
- block_t *p_block = NULL;
- /* Try grabbing audio frames first */
- if( p_sys->i_fd_audio < 0 || !( p_block = GrabAudio( p_demux ) ) )
- {
- /* Try grabbing video frame */
- p_es = p_sys->p_es_video;
- if( p_sys->i_fd_video > 0 ) p_block = GrabVideo( p_demux );
- }
+ struct pollfd fd;
+ fd.fd = p_sys->i_fd;
+ fd.events = POLLIN|POLLPRI;
+ fd.revents = 0;
- if( !p_block )
+ /* Wait for data */
+ if( poll( &fd, 1, 500 ) ) /* Timeout after 0.5 seconds since I don't know if pf_demux can be blocking. */
{
- /* Sleep so we do not consume all the cpu, 10ms seems
- * like a good value (100fps) */
- msleep( 10 );
- return 1;
+ if( fd.revents & (POLLIN|POLLPRI) )
+ {
+ block_t *p_block = GrabVideo( VLC_OBJECT(p_demux), p_sys );
+ if( p_block )
+ {
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
+ es_out_Send( p_demux->out, p_sys->p_es, p_block );
+ }
+ }
}
- es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_block->i_pts );
- es_out_Send( p_demux->out, p_es, p_block );
-
return 1;
}
/*****************************************************************************
* GrabVideo: Grab a video frame
*****************************************************************************/
-static block_t* GrabVideo( demux_t *p_demux )
+static block_t* GrabVideo( vlc_object_t *p_demux, demux_sys_t *p_sys )
{
- demux_sys_t *p_sys = p_demux->p_sys;
-
block_t *p_block = NULL;
struct v4l2_buffer buf;
ssize_t i_ret;
mtime_t i_dur = (mtime_t)((double)1000000 / (double)p_sys->f_fps);
/* Did we wait long enough ? (frame rate reduction) */
- if( p_sys->i_video_pts + i_dur > mdate() ) return 0;
+ if( p_sys->i_video_pts + i_dur > mdate() )
+ return NULL;
}
/* Grab Video Frame */
switch( p_sys->io )
{
case IO_METHOD_READ:
- i_ret = read( p_sys->i_fd_video, p_sys->p_buffers[0].start, p_sys->p_buffers[0].length );
+ i_ret = v4l2_read( p_sys->i_fd, p_sys->p_buffers[0].start, p_sys->p_buffers[0].length );
if( i_ret == -1 )
{
switch( errno )
{
case EAGAIN:
- return 0;
+ return NULL;
case EIO:
/* Could ignore EIO, see spec. */
/* fall through */
}
p_block = ProcessVideoFrame( p_demux, (uint8_t*)p_sys->p_buffers[0].start, i_ret );
- if( !p_block ) return 0;
+ if( !p_block )
+ return NULL;
break;
buf.memory = V4L2_MEMORY_MMAP;
/* Wait for next frame */
- if (ioctl( p_sys->i_fd_video, VIDIOC_DQBUF, &buf ) < 0 )
+ if (v4l2_ioctl( p_sys->i_fd, VIDIOC_DQBUF, &buf ) < 0 )
{
switch( errno )
{
case EAGAIN:
- return 0;
+ return NULL;
case EIO:
/* Could ignore EIO, see spec. */
/* fall through */
default:
msg_Err( p_demux, "Failed to wait (VIDIOC_DQBUF)" );
- return 0;
+ return NULL;
}
}
if( buf.index >= p_sys->i_nbuffers ) {
msg_Err( p_demux, "Failed capturing new frame as i>=nbuffers" );
- return 0;
+ return NULL;
}
p_block = ProcessVideoFrame( p_demux, p_sys->p_buffers[buf.index].start, buf.bytesused );
- if( !p_block ) return 0;
+ if( !p_block )
+ return NULL;
/* Unlock */
- if( ioctl( p_sys->i_fd_video, VIDIOC_QBUF, &buf ) < 0 )
+ if( v4l2_ioctl( p_sys->i_fd, VIDIOC_QBUF, &buf ) < 0 )
{
- msg_Err (p_demux, "Failed to unlock (VIDIOC_QBUF)");
- return 0;
+ msg_Err( p_demux, "Failed to unlock (VIDIOC_QBUF)" );
+ block_Release( p_block );
+ return NULL;
}
break;
buf.memory = V4L2_MEMORY_USERPTR;
/* Wait for next frame */
- if (ioctl( p_sys->i_fd_video, VIDIOC_DQBUF, &buf ) < 0 )
+ if (v4l2_ioctl( p_sys->i_fd, VIDIOC_DQBUF, &buf ) < 0 )
{
switch( errno )
{
case EAGAIN:
- return 0;
+ return NULL;
case EIO:
/* Could ignore EIO, see spec. */
/* fall through */
default:
msg_Err( p_demux, "Failed to wait (VIDIOC_DQBUF)" );
- return 0;
+ return NULL;
}
}
if( i >= p_sys->i_nbuffers )
{
msg_Err( p_demux, "Failed capturing new frame as i>=nbuffers" );
- return 0;
+ return NULL;
}
p_block = ProcessVideoFrame( p_demux, (uint8_t*)buf.m.userptr, buf.bytesused );
- if( !p_block ) return 0;
+ if( !p_block )
+ return NULL;
/* Unlock */
- if( ioctl( p_sys->i_fd_video, VIDIOC_QBUF, &buf ) < 0 )
+ if( v4l2_ioctl( p_sys->i_fd, VIDIOC_QBUF, &buf ) < 0 )
{
- msg_Err (p_demux, "Failed to unlock (VIDIOC_QBUF)");
- return 0;
+ msg_Err( p_demux, "Failed to unlock (VIDIOC_QBUF)" );
+ block_Release( p_block );
+ return NULL;
}
break;
+ default:
+ break;
}
/* Timestamp */
p_sys->i_video_pts = p_block->i_pts = p_block->i_dts = mdate();
+ p_block->i_flags |= p_sys->i_block_flags;
return p_block;
}
* ProcessVideoFrame: Helper function to take a buffer and copy it into
* a new block
*****************************************************************************/
-static block_t* ProcessVideoFrame( demux_t *p_demux, uint8_t *p_frame, size_t i_size )
+static block_t* ProcessVideoFrame( vlc_object_t *p_demux, uint8_t *p_frame, size_t i_size )
{
block_t *p_block;
- if( !p_frame ) return 0;
+ if( !p_frame ) return NULL;
/* New block */
if( !( p_block = block_New( p_demux, i_size ) ) )
{
msg_Warn( p_demux, "Cannot get new block" );
- return 0;
+ return NULL;
}
/* Copy frame */
return p_block;
}
-/*****************************************************************************
- * GrabAudio: Grab an audio frame
- *****************************************************************************/
-static block_t* GrabAudio( demux_t *p_demux )
-{
- demux_sys_t *p_sys = p_demux->p_sys;
- struct audio_buf_info buf_info;
- int i_read = 0, i_correct;
- block_t *p_block;
-
- if( p_sys->p_block_audio ) p_block = p_sys->p_block_audio;
- else p_block = block_New( p_demux, p_sys->i_audio_max_frame_size );
-
- if( !p_block )
- {
- msg_Warn( p_demux, "cannot get block" );
- return 0;
- }
-
- p_sys->p_block_audio = p_block;
-
-#ifdef HAVE_ALSA
- if( p_sys->i_audio_method & AUDIO_METHOD_ALSA )
- {
- /* ALSA */
- i_read = snd_pcm_readi( p_sys->p_alsa_pcm, p_block->p_buffer, p_sys->i_alsa_chunk_size );
- if( i_read <= 0 )
- {
- int i_resume;
- switch( i_read )
- {
- case -EAGAIN:
- break;
- case -EPIPE:
- /* xrun */
- snd_pcm_prepare( p_sys->p_alsa_pcm );
- break;
- case -ESTRPIPE:
- /* suspend */
- i_resume = snd_pcm_resume( p_sys->p_alsa_pcm );
- if( i_resume < 0 && i_resume != -EAGAIN ) snd_pcm_prepare( p_sys->p_alsa_pcm );
- break;
- default:
- msg_Err( p_demux, "Failed to read alsa frame (%s)", snd_strerror( i_read ) );
- return 0;
- }
- }
- else
- {
- /* convert from frames to bytes */
- i_read *= p_sys->i_alsa_frame_size;
- }
- }
- else
-#endif
- if( p_sys->i_audio_method & AUDIO_METHOD_OSS )
- {
- /* OSS */
- i_read = read( p_sys->i_fd_audio, p_block->p_buffer,
- p_sys->i_audio_max_frame_size );
- }
-
- if( i_read <= 0 ) return 0;
-
- p_block->i_buffer = i_read;
- p_sys->p_block_audio = 0;
-
- /* Correct the date because of kernel buffering */
- i_correct = i_read;
- if( p_sys->i_audio_method & AUDIO_METHOD_OSS )
- {
- /* OSS */
- if( ioctl( p_sys->i_fd_audio, SNDCTL_DSP_GETISPACE, &buf_info ) == 0 )
- {
- i_correct += buf_info.bytes;
- }
- }
-#ifdef HAVE_ALSA
- else if( p_sys->i_audio_method & AUDIO_METHOD_ALSA )
- {
- /* ALSA */
- int i_err;
- snd_pcm_sframes_t delay = 0;
- if( ( i_err = snd_pcm_delay( p_sys->p_alsa_pcm, &delay ) ) >= 0 )
- {
- size_t i_correction_delta = delay * p_sys->i_alsa_frame_size;
- /* Test for overrun */
- if( i_correction_delta > p_sys->i_audio_max_frame_size )
- {
- msg_Warn( p_demux, "ALSA read overrun (%d > %d)",
- i_correction_delta, p_sys->i_audio_max_frame_size );
- i_correction_delta = p_sys->i_audio_max_frame_size;
- snd_pcm_prepare( p_sys->p_alsa_pcm );
- }
- i_correct += i_correction_delta;
- }
- else
- {
- /* delay failed so reset */
- msg_Warn( p_demux, "ALSA snd_pcm_delay failed (%s)", snd_strerror( i_err ) );
- snd_pcm_prepare( p_sys->p_alsa_pcm );
- }
- }
-#endif
-
- /* Timestamp */
- p_block->i_pts = p_block->i_dts =
- mdate() - I64C(1000000) * (mtime_t)i_correct /
- 2 / ( p_sys->b_stereo ? 2 : 1) / p_sys->i_sample_rate;
-
- return p_block;
-}
-
/*****************************************************************************
* Helper function to initalise video IO using the Read method
*****************************************************************************/
-static int InitRead( demux_t *p_demux, int i_fd, unsigned int i_buffer_size )
+static int InitRead( vlc_object_t *p_demux, demux_sys_t *p_sys, unsigned int i_buffer_size )
{
- demux_sys_t *p_sys = p_demux->p_sys;
+ (void)p_demux;
p_sys->p_buffers = calloc( 1, sizeof( *p_sys->p_buffers ) );
if( !p_sys->p_buffers )
- {
- msg_Err( p_demux, "Out of memory" );
- goto open_failed;
- }
+ return VLC_EGENERIC;
p_sys->p_buffers[0].length = i_buffer_size;
p_sys->p_buffers[0].start = malloc( i_buffer_size );
if( !p_sys->p_buffers[0].start )
- {
- msg_Err( p_demux, "Out of memory" );
- goto open_failed;
- }
+ return VLC_ENOMEM;
return VLC_SUCCESS;
-
-open_failed:
- return VLC_EGENERIC;
-
}
/*****************************************************************************
* Helper function to initalise video IO using the mmap method
*****************************************************************************/
-static int InitMmap( demux_t *p_demux, int i_fd )
+static int InitMmap( vlc_object_t *p_demux, demux_sys_t *p_sys, int i_fd )
{
- demux_sys_t *p_sys = p_demux->p_sys;
struct v4l2_requestbuffers req;
memset( &req, 0, sizeof(req) );
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
req.memory = V4L2_MEMORY_MMAP;
- if( ioctl( i_fd, VIDIOC_REQBUFS, &req ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_REQBUFS, &req ) < 0 )
{
msg_Err( p_demux, "device does not support mmap i/o" );
goto open_failed;
p_sys->p_buffers = calloc( req.count, sizeof( *p_sys->p_buffers ) );
if( !p_sys->p_buffers )
- {
- msg_Err( p_demux, "Out of memory" );
goto open_failed;
- }
for( p_sys->i_nbuffers = 0; p_sys->i_nbuffers < req.count; ++p_sys->i_nbuffers )
{
buf.memory = V4L2_MEMORY_MMAP;
buf.index = p_sys->i_nbuffers;
- if( ioctl( i_fd, VIDIOC_QUERYBUF, &buf ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYBUF, &buf ) < 0 )
{
msg_Err( p_demux, "VIDIOC_QUERYBUF" );
goto open_failed;
p_sys->p_buffers[p_sys->i_nbuffers].length = buf.length;
p_sys->p_buffers[p_sys->i_nbuffers].start =
- mmap( NULL, buf.length, PROT_READ | PROT_WRITE, MAP_SHARED, i_fd, buf.m.offset );
+ v4l2_mmap( NULL, buf.length, PROT_READ | PROT_WRITE, MAP_SHARED, i_fd, buf.m.offset );
if( p_sys->p_buffers[p_sys->i_nbuffers].start == MAP_FAILED )
{
/*****************************************************************************
* Helper function to initalise video IO using the userbuf method
*****************************************************************************/
-static int InitUserP( demux_t *p_demux, int i_fd, unsigned int i_buffer_size )
+static int InitUserP( vlc_object_t *p_demux, demux_sys_t *p_sys, int i_fd, unsigned int i_buffer_size )
{
- demux_sys_t *p_sys = p_demux->p_sys;
struct v4l2_requestbuffers req;
unsigned int i_page_size;
- i_page_size = getpagesize();
+ i_page_size = sysconf(_SC_PAGESIZE);
i_buffer_size = ( i_buffer_size + i_page_size - 1 ) & ~( i_page_size - 1);
memset( &req, 0, sizeof(req) );
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
req.memory = V4L2_MEMORY_USERPTR;
- if( ioctl( i_fd, VIDIOC_REQBUFS, &req ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_REQBUFS, &req ) < 0 )
{
msg_Err( p_demux, "device does not support user pointer i/o" );
- goto open_failed;
+ return VLC_EGENERIC;
}
p_sys->p_buffers = calloc( 4, sizeof( *p_sys->p_buffers ) );
if( !p_sys->p_buffers )
- {
- msg_Err( p_demux, "Out of memory" );
goto open_failed;
- }
for( p_sys->i_nbuffers = 0; p_sys->i_nbuffers < 4; ++p_sys->i_nbuffers )
{
p_sys->p_buffers[p_sys->i_nbuffers].length = i_buffer_size;
- p_sys->p_buffers[p_sys->i_nbuffers].start =
- vlc_memalign( &p_sys->p_buffers[p_sys->i_nbuffers].orig_userp,
- /* boundary */ i_page_size, i_buffer_size );
-
- if( !p_sys->p_buffers[p_sys->i_nbuffers].start )
- {
- msg_Err( p_demux, "out of memory" );
+ if( posix_memalign( &p_sys->p_buffers[p_sys->i_nbuffers].start,
+ /* boundary */ i_page_size, i_buffer_size ) )
goto open_failed;
- }
}
return VLC_SUCCESS;
open_failed:
+ free( p_sys->p_buffers );
return VLC_EGENERIC;
}
* IsPixelFormatSupported: returns true if the specified V4L2 pixel format is
* in the array of supported formats returned by the driver
*****************************************************************************/
-static vlc_bool_t IsPixelFormatSupported( demux_t *p_demux, unsigned int i_pixelformat )
+static bool IsPixelFormatSupported( demux_t *p_demux, unsigned int i_pixelformat )
{
demux_sys_t *p_sys = p_demux->p_sys;
for( int i_index = 0; i_index < p_sys->i_codec; i_index++ )
{
if( p_sys->p_codecs[i_index].pixelformat == i_pixelformat )
- return VLC_TRUE;
+ return true;
+ }
+
+ return false;
+}
+
+static float GetMaxFrameRate( demux_t *p_demux, int i_fd,
+ uint32_t i_pixel_format,
+ uint32_t i_width, uint32_t i_height )
+{
+ (void)p_demux;
+#ifdef VIDIOC_ENUM_FRAMEINTERVALS
+#ifdef HAVE_LIBV4L2
+ demux_sys_t *p_sys = p_demux->p_sys;
+#endif
+ /* This is new in Linux 2.6.19 */
+ struct v4l2_frmivalenum frmival;
+ memset( &frmival, 0, sizeof(frmival) );
+ frmival.pixel_format = i_pixel_format;
+ frmival.width = i_width;
+ frmival.height = i_height;
+ if( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival ) >= 0 )
+ {
+ switch( frmival.type )
+ {
+ case V4L2_FRMIVAL_TYPE_DISCRETE:
+ {
+ float f_fps_max = -1;
+ do
+ {
+ float f_fps = (float)frmival.discrete.denominator
+ / (float)frmival.discrete.numerator;
+ if( f_fps > f_fps_max ) f_fps_max = f_fps;
+ frmival.index++;
+ } while( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMEINTERVALS,
+ &frmival ) >= 0 );
+ return f_fps_max;
+ }
+ case V4L2_FRMSIZE_TYPE_STEPWISE:
+ case V4L2_FRMIVAL_TYPE_CONTINUOUS:
+ return __MAX( (float)frmival.stepwise.max.denominator
+ / (float)frmival.stepwise.max.numerator,
+ (float)frmival.stepwise.min.denominator
+ / (float)frmival.stepwise.min.numerator );
+ }
+ }
+#endif
+ return -1.;
+}
+
+static float GetAbsoluteMaxFrameRate( demux_t *p_demux, int i_fd,
+ uint32_t i_pixel_format )
+{
+ float f_fps_max = -1.;
+#ifdef VIDIOC_ENUM_FRAMESIZES
+#ifdef HAVE_LIBV4L2
+ demux_sys_t *p_sys = p_demux->p_sys;
+#endif
+ /* This is new in Linux 2.6.19 */
+ struct v4l2_frmsizeenum frmsize;
+ memset( &frmsize, 0, sizeof(frmsize) );
+ frmsize.pixel_format = i_pixel_format;
+ if( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize ) >= 0 )
+ {
+ switch( frmsize.type )
+ {
+ case V4L2_FRMSIZE_TYPE_DISCRETE:
+ do
+ {
+ frmsize.index++;
+ float f_fps = GetMaxFrameRate( p_demux, i_fd,
+ i_pixel_format,
+ frmsize.discrete.width,
+ frmsize.discrete.height );
+ if( f_fps > f_fps_max ) f_fps_max = f_fps;
+ } while( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES,
+ &frmsize ) >= 0 );
+ break;
+ case V4L2_FRMSIZE_TYPE_STEPWISE:
+ {
+ uint32_t i_width = frmsize.stepwise.min_width;
+ uint32_t i_height = frmsize.stepwise.min_height;
+ for( ;
+ i_width <= frmsize.stepwise.max_width &&
+ i_height <= frmsize.stepwise.max_width;
+ i_width += frmsize.stepwise.step_width,
+ i_height += frmsize.stepwise.step_height )
+ {
+ float f_fps = GetMaxFrameRate( p_demux, i_fd,
+ i_pixel_format,
+ i_width, i_height );
+ if( f_fps > f_fps_max ) f_fps_max = f_fps;
+ }
+ break;
+ }
+ case V4L2_FRMSIZE_TYPE_CONTINUOUS:
+ /* FIXME */
+ msg_Err( p_demux, "GetAbsoluteMaxFrameRate implementation for V4L2_FRMSIZE_TYPE_CONTINUOUS isn't correct" );
+ f_fps_max = GetMaxFrameRate( p_demux, i_fd,
+ i_pixel_format,
+ frmsize.stepwise.max_width,
+ frmsize.stepwise.max_height );
+ break;
+ }
}
+#endif
+ return f_fps_max;
+}
- return VLC_FALSE;
+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 )
+{
+ *pi_width = 0;
+ *pi_height = 0;
+#ifdef VIDIOC_ENUM_FRAMESIZES
+#ifdef HAVE_LIBV4L2
+ demux_sys_t *p_sys = p_demux->p_sys;
+#endif
+ /* This is new in Linux 2.6.19 */
+ struct v4l2_frmsizeenum frmsize;
+ memset( &frmsize, 0, sizeof(frmsize) );
+ frmsize.pixel_format = i_pixel_format;
+ if( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize ) >= 0 )
+ {
+ switch( frmsize.type )
+ {
+ case V4L2_FRMSIZE_TYPE_DISCRETE:
+ do
+ {
+ frmsize.index++;
+ float f_fps = GetMaxFrameRate( p_demux, i_fd,
+ i_pixel_format,
+ frmsize.discrete.width,
+ frmsize.discrete.height );
+ if( f_fps >= f_fps_min &&
+ frmsize.discrete.width > *pi_width )
+ {
+ *pi_width = frmsize.discrete.width;
+ *pi_height = frmsize.discrete.height;
+ }
+ } while( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES,
+ &frmsize ) >= 0 );
+ break;
+ case V4L2_FRMSIZE_TYPE_STEPWISE:
+ {
+ uint32_t i_width = frmsize.stepwise.min_width;
+ uint32_t i_height = frmsize.stepwise.min_height;
+ for( ;
+ i_width <= frmsize.stepwise.max_width &&
+ i_height <= frmsize.stepwise.max_width;
+ i_width += frmsize.stepwise.step_width,
+ i_height += frmsize.stepwise.step_height )
+ {
+ float f_fps = GetMaxFrameRate( p_demux, i_fd,
+ i_pixel_format,
+ i_width, i_height );
+ if( f_fps >= f_fps_min && i_width > *pi_width )
+ {
+ *pi_width = i_width;
+ *pi_height = i_height;
+ }
+ }
+ break;
+ }
+ case V4L2_FRMSIZE_TYPE_CONTINUOUS:
+ /* FIXME */
+ msg_Err( p_demux, "GetMaxDimension implementation for V4L2_FRMSIZE_TYPE_CONTINUOUS isn't correct" );
+ float f_fps = GetMaxFrameRate( p_demux, i_fd,
+ i_pixel_format,
+ frmsize.stepwise.max_width,
+ frmsize.stepwise.max_height );
+ if( f_fps >= f_fps_min &&
+ frmsize.stepwise.max_width > *pi_width )
+ {
+ *pi_width = frmsize.stepwise.max_width;
+ *pi_height = frmsize.stepwise.max_height;
+ }
+ break;
+ }
+ }
+#endif
}
/*****************************************************************************
* OpenVideoDev: open and set up the video device and probe for capabilities
*****************************************************************************/
-static int OpenVideoDev( vlc_object_t *p_obj, demux_sys_t *p_sys, vlc_bool_t b_demux )
+static int OpenVideoDev( vlc_object_t *p_obj, demux_sys_t *p_sys, bool b_demux )
{
int i_fd;
struct v4l2_cropcap cropcap;
struct v4l2_format fmt;
unsigned int i_min;
enum v4l2_buf_type buf_type;
- char *psz_device = p_sys->psz_vdev;
+ const char *psz_device = p_sys->psz_device;
+ es_format_t es_fmt;
- if( ( i_fd = open( psz_device, O_RDWR ) ) < 0 )
+ if( ( i_fd = v4l2_open( psz_device, O_RDWR ) ) < 0 )
{
msg_Err( p_obj, "cannot open device (%m)" );
goto open_failed;
}
+#ifdef HAVE_LIBV4L2
+ /* Note the v4l2_xxx functions are designed so that if they get passed an
+ unknown fd, the will behave exactly as their regular xxx counterparts,
+ so if v4l2_fd_open fails, we continue as normal (missing the libv4l2
+ custom cam format to normal formats conversion). Chances are big we will
+ still fail then though, as normally v4l2_fd_open only fails if the
+ device is not a v4l2 device. */
+ if( p_sys->b_libv4l2 )
+ {
+ int libv4l2_fd;
+ libv4l2_fd = v4l2_fd_open( i_fd, V4L2_ENABLE_ENUM_FMT_EMULATION );
+ if( libv4l2_fd != -1 )
+ i_fd = libv4l2_fd;
+ }
+#endif
+
/* Tune the tuner */
if( p_sys->i_frequency >= 0 )
{
frequency.tuner = p_sys->i_cur_tuner;
frequency.type = p_sys->p_tuners[p_sys->i_cur_tuner].type;
frequency.frequency = p_sys->i_frequency / 62.5;
- if( ioctl( i_fd, VIDIOC_S_FREQUENCY, &frequency ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_S_FREQUENCY, &frequency ) < 0 )
{
msg_Err( p_obj, "cannot set tuner frequency (%m)" );
goto open_failed;
memset( &tuner, 0, sizeof( tuner ) );
tuner.index = p_sys->i_cur_tuner;
tuner.audmode = p_sys->i_audio_mode;
- if( ioctl( i_fd, VIDIOC_S_TUNER, &tuner ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_S_TUNER, &tuner ) < 0 )
{
msg_Err( p_obj, "cannot set tuner audio mode (%m)" );
goto open_failed;
if( p_sys->i_selected_standard_id != V4L2_STD_UNKNOWN )
{
- if( ioctl( i_fd, VIDIOC_S_STD, &p_sys->i_selected_standard_id ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_S_STD, &p_sys->i_selected_standard_id ) < 0 )
{
msg_Err( p_obj, "cannot set standard (%m)" );
goto open_failed;
}
- msg_Dbg( p_obj, "Set standard" );
+ if( v4l2_ioctl( i_fd, VIDIOC_G_STD, &p_sys->i_selected_standard_id ) < 0 )
+ {
+ msg_Err( p_obj, "cannot get standard (%m). This should never happen!" );
+ goto open_failed;
+ }
+ msg_Dbg( p_obj, "Set standard to (0x%"PRIx64"):", p_sys->i_selected_standard_id );
+ int i_standard;
+ for( i_standard = 0; i_standard<p_sys->i_standard; i_standard++)
+ {
+ if( p_sys->p_standards[i_standard].id & p_sys->i_selected_standard_id )
+ {
+ msg_Dbg( p_obj, " %s",
+ p_sys->p_standards[i_standard].name );
+ }
+ }
}
/* Select input */
p_sys->i_selected_input = 0;
}
- if( ioctl( i_fd, VIDIOC_S_INPUT, &p_sys->i_selected_input ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_S_INPUT, &p_sys->i_selected_input ) < 0 )
{
msg_Err( p_obj, "cannot set input (%m)" );
goto open_failed;
p_sys->i_selected_audio_input = 0;
}
- if( ioctl( i_fd, VIDIOC_S_AUDIO, &p_sys->p_audios[p_sys->i_selected_audio_input] ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_S_AUDIO, &p_sys->p_audios[p_sys->i_selected_audio_input] ) < 0 )
{
msg_Err( p_obj, "cannot set audio input (%m)" );
goto open_failed;
/* TODO: Move the resolution stuff up here */
/* if MPEG encoder card, no need to do anything else after this */
- ControlList( p_obj, i_fd,
+ ControlList( p_obj, p_sys, i_fd,
var_GetBool( p_obj, "v4l2-controls-reset" ), b_demux );
SetAvailControlsByString( p_obj, p_sys, i_fd );
- if( VLC_FALSE == b_demux)
- {
- return i_fd;
- }
-
- demux_t *p_demux = (demux_t *) p_obj;
/* Verify device support for the various IO methods */
switch( p_sys->io )
case IO_METHOD_READ:
if( !(p_sys->dev_cap.capabilities & V4L2_CAP_READWRITE) )
{
- msg_Err( p_demux, "device does not support read i/o" );
+ msg_Err( p_obj, "device does not support read i/o" );
goto open_failed;
}
+ msg_Dbg( p_obj, "using read i/o" );
break;
case IO_METHOD_MMAP:
case IO_METHOD_USERPTR:
if( !(p_sys->dev_cap.capabilities & V4L2_CAP_STREAMING) )
{
- msg_Err( p_demux, "device does not support streaming i/o" );
+ msg_Err( p_obj, "device does not support streaming i/o" );
goto open_failed;
}
+ if( p_sys->io == IO_METHOD_MMAP )
+ msg_Dbg( p_obj, "using streaming i/o (mmap)" );
+ else
+ msg_Dbg( p_obj, "using streaming i/o (userptr)" );
break;
default:
- msg_Err( p_demux, "io method not supported" );
+ msg_Err( p_obj, "io method not supported" );
goto open_failed;
}
/* Reset Cropping */
memset( &cropcap, 0, sizeof(cropcap) );
cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if( ioctl( i_fd, VIDIOC_CROPCAP, &cropcap ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_CROPCAP, &cropcap ) >= 0 )
{
crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
crop.c = cropcap.defrect; /* reset to default */
- if( ioctl( i_fd, VIDIOC_S_CROP, &crop ) < 0 )
+ if( crop.c.width > 0 && crop.c.height > 0 ) /* Fix for fm tuners */
{
- switch( errno )
+ if( v4l2_ioctl( i_fd, VIDIOC_S_CROP, &crop ) < 0 )
{
- case EINVAL:
- /* Cropping not supported. */
- break;
- default:
- /* Errors ignored. */
- break;
+ switch( errno )
+ {
+ case EINVAL:
+ /* Cropping not supported. */
+ break;
+ default:
+ /* Errors ignored. */
+ break;
+ }
}
}
}
if( p_sys->i_width <= 0 || p_sys->i_height <= 0 )
{
- if( ioctl( i_fd, VIDIOC_G_FMT, &fmt ) < 0 )
+ /* Use current width and height settings */
+ if( v4l2_ioctl( i_fd, VIDIOC_G_FMT, &fmt ) < 0 )
{
- msg_Err( p_demux, "Cannot get default width and height." );
+ msg_Err( p_obj, "Cannot get default width and height." );
goto open_failed;
}
- p_sys->i_width = fmt.fmt.pix.width;
- p_sys->i_height = fmt.fmt.pix.height;
+ msg_Dbg( p_obj, "found default width and height of %ux%u",
+ fmt.fmt.pix.width, fmt.fmt.pix.height );
- if( fmt.fmt.pix.field == V4L2_FIELD_ALTERNATE )
+ if( p_sys->i_width < 0 || p_sys->i_height < 0 )
{
- p_sys->i_height = p_sys->i_height * 2;
+ msg_Dbg( p_obj, "will try to find optimal width and height." );
}
}
else
{
- msg_Dbg( p_demux, "trying specified size %dx%d", p_sys->i_width, p_sys->i_height );
+ /* Use user specified width and height */
+ msg_Dbg( p_obj, "trying specified size %dx%d", p_sys->i_width, p_sys->i_height );
+ fmt.fmt.pix.width = p_sys->i_width;
+ fmt.fmt.pix.height = p_sys->i_height;
}
- fmt.fmt.pix.width = p_sys->i_width;
- fmt.fmt.pix.height = p_sys->i_height;
- fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
+ fmt.fmt.pix.field = V4L2_FIELD_NONE;
- /* Test and set Chroma */
- fmt.fmt.pix.pixelformat = 0;
- if( p_sys->psz_requested_chroma && strlen( p_sys->psz_requested_chroma ) > 0 )
+ if (b_demux)
{
- /* User specified chroma */
- if( strlen( p_sys->psz_requested_chroma ) >= 4 )
+ demux_t *p_demux = (demux_t *) p_obj;
+
+ /* Test and set Chroma */
+ fmt.fmt.pix.pixelformat = 0;
+ if( p_sys->psz_requested_chroma && *p_sys->psz_requested_chroma )
{
- int i_requested_fourcc = VLC_FOURCC(
- p_sys->psz_requested_chroma[0], p_sys->psz_requested_chroma[1],
- p_sys->psz_requested_chroma[2], p_sys->psz_requested_chroma[3] );
+ /* User specified chroma */
+ const vlc_fourcc_t i_requested_fourcc =
+ vlc_fourcc_GetCodecFromString( VIDEO_ES, p_sys->psz_requested_chroma );
+
for( int i = 0; v4l2chroma_to_fourcc[i].i_v4l2 != 0; i++ )
{
if( v4l2chroma_to_fourcc[i].i_fourcc == i_requested_fourcc )
break;
}
}
+ /* Try and set user chroma */
+ bool b_error = !IsPixelFormatSupported( p_demux, fmt.fmt.pix.pixelformat );
+ if( !b_error && fmt.fmt.pix.pixelformat )
+ {
+ if( v4l2_ioctl( i_fd, VIDIOC_S_FMT, &fmt ) < 0 )
+ {
+ fmt.fmt.pix.field = V4L2_FIELD_ANY;
+ if( v4l2_ioctl( i_fd, VIDIOC_S_FMT, &fmt ) < 0 )
+ {
+ fmt.fmt.pix.field = V4L2_FIELD_NONE;
+ b_error = true;
+ }
+ }
+ }
+ if( b_error )
+ {
+ msg_Warn( p_demux, "Driver is unable to use specified chroma %s. Trying defaults.", p_sys->psz_requested_chroma );
+ fmt.fmt.pix.pixelformat = 0;
+ }
}
- /* Try and set user chroma */
- if( !IsPixelFormatSupported( p_demux, fmt.fmt.pix.pixelformat ) || ( fmt.fmt.pix.pixelformat && ioctl( i_fd, VIDIOC_S_FMT, &fmt ) < 0 ) )
- {
- msg_Warn( p_demux, "Driver is unable to use specified chroma %s. Trying defaults.", p_sys->psz_requested_chroma );
- fmt.fmt.pix.pixelformat = 0;
- }
- }
- /* If no user specified chroma, find best */
- /* This also decides if MPEG encoder card or not */
- if( !fmt.fmt.pix.pixelformat )
- {
- unsigned int i;
- for( i = 0; i < ARRAY_SIZE( p_chroma_fallbacks ); i++ )
+ /* If no user specified chroma, find best */
+ /* This also decides if MPEG encoder card or not */
+ if( !fmt.fmt.pix.pixelformat )
{
- fmt.fmt.pix.pixelformat = p_chroma_fallbacks[i];
- if( IsPixelFormatSupported( p_demux, fmt.fmt.pix.pixelformat )
- && ioctl( i_fd, VIDIOC_S_FMT, &fmt ) >= 0 )
- break;
+ unsigned int i;
+ for( i = 0; i < ARRAY_SIZE( p_chroma_fallbacks ); i++ )
+ {
+ fmt.fmt.pix.pixelformat = p_chroma_fallbacks[i];
+ if( IsPixelFormatSupported( p_demux, fmt.fmt.pix.pixelformat ) )
+ {
+ if( v4l2_ioctl( i_fd, VIDIOC_S_FMT, &fmt ) >= 0 )
+ break;
+ fmt.fmt.pix.field = V4L2_FIELD_ANY;
+ if( v4l2_ioctl( i_fd, VIDIOC_S_FMT, &fmt ) >= 0 )
+ break;
+ fmt.fmt.pix.field = V4L2_FIELD_NONE;
+ }
+ }
+ if( i == ARRAY_SIZE( p_chroma_fallbacks ) )
+ {
+ msg_Warn( p_demux, "Could not select any of the default chromas; attempting to open as MPEG encoder card (access)" );
+ goto open_failed;
+ }
}
- if( i == ARRAY_SIZE( p_chroma_fallbacks ) )
+
+ if( p_sys->i_width < 0 || p_sys->i_height < 0 )
{
- msg_Warn( p_demux, "Could not select any of the default chromas; attempting to open as MPEG encoder card (access2)" );
- goto open_failed;
+ if( p_sys->f_fps <= 0 )
+ {
+ p_sys->f_fps = GetAbsoluteMaxFrameRate( p_demux, i_fd,
+ fmt.fmt.pix.pixelformat );
+ msg_Dbg( p_demux, "Found maximum framerate of %f", p_sys->f_fps );
+ }
+ uint32_t i_width, i_height;
+ GetMaxDimensions( p_demux, i_fd,
+ fmt.fmt.pix.pixelformat, p_sys->f_fps,
+ &i_width, &i_height );
+ if( i_width || i_height )
+ {
+ msg_Dbg( p_demux, "Found optimal dimensions for framerate %f "
+ "of %ux%u", p_sys->f_fps, i_width, i_height );
+ fmt.fmt.pix.width = i_width;
+ fmt.fmt.pix.height = i_height;
+ if( v4l2_ioctl( i_fd, VIDIOC_S_FMT, &fmt ) < 0 )
+ {
+ msg_Err( p_obj, "Cannot set size to optimal dimensions "
+ "%ux%u", i_width, i_height );
+ goto open_failed;
+ }
+ }
+ else
+ {
+ msg_Warn( p_obj, "Could not find optimal width and height, "
+ "falling back to driver default." );
+ }
}
}
- /* Reassign width, height and chroma incase driver override */
p_sys->i_width = fmt.fmt.pix.width;
p_sys->i_height = fmt.fmt.pix.height;
+ if( v4l2_ioctl( i_fd, VIDIOC_G_FMT, &fmt ) < 0 ) {;}
+ /* Print extra info */
+ msg_Dbg( p_obj, "Driver requires at most %d bytes to store a complete image", fmt.fmt.pix.sizeimage );
+ /* Check interlacing */
+ switch( fmt.fmt.pix.field )
+ {
+ case V4L2_FIELD_NONE:
+ msg_Dbg( p_obj, "Interlacing setting: progressive" );
+ break;
+ case V4L2_FIELD_TOP:
+ msg_Dbg( p_obj, "Interlacing setting: top field only" );
+ break;
+ case V4L2_FIELD_BOTTOM:
+ msg_Dbg( p_obj, "Interlacing setting: bottom field only" );
+ break;
+ case V4L2_FIELD_INTERLACED:
+ msg_Dbg( p_obj, "Interlacing setting: interleaved (bottom top if M/NTSC, top bottom otherwise)" );
+ if( p_sys->i_selected_standard_id == V4L2_STD_NTSC )
+ p_sys->i_block_flags = BLOCK_FLAG_BOTTOM_FIELD_FIRST;
+ else
+ p_sys->i_block_flags = BLOCK_FLAG_TOP_FIELD_FIRST;
+ break;
+ case V4L2_FIELD_SEQ_TB:
+ msg_Dbg( p_obj, "Interlacing setting: sequential top bottom (TODO)" );
+ break;
+ case V4L2_FIELD_SEQ_BT:
+ msg_Dbg( p_obj, "Interlacing setting: sequential bottom top (TODO)" );
+ break;
+ case V4L2_FIELD_ALTERNATE:
+ msg_Dbg( p_obj, "Interlacing setting: alternate fields (TODO)" );
+ p_sys->i_height = p_sys->i_height * 2;
+ break;
+ case V4L2_FIELD_INTERLACED_TB:
+ msg_Dbg( p_obj, "Interlacing setting: interleaved top bottom" );
+ p_sys->i_block_flags = BLOCK_FLAG_TOP_FIELD_FIRST;
+ break;
+ case V4L2_FIELD_INTERLACED_BT:
+ msg_Dbg( p_obj, "Interlacing setting: interleaved bottom top" );
+ p_sys->i_block_flags = BLOCK_FLAG_BOTTOM_FIELD_FIRST;
+ break;
+ default:
+ msg_Warn( p_obj, "Interlacing setting: unknown type (%d)",
+ fmt.fmt.pix.field );
+ break;
+ }
+
/* Look up final fourcc */
p_sys->i_fourcc = 0;
for( int i = 0; v4l2chroma_to_fourcc[i].i_fourcc != 0; i++ )
if( v4l2chroma_to_fourcc[i].i_v4l2 == fmt.fmt.pix.pixelformat )
{
p_sys->i_fourcc = v4l2chroma_to_fourcc[i].i_fourcc;
+ es_format_Init( &es_fmt, VIDEO_ES, p_sys->i_fourcc );
+ es_fmt.video.i_rmask = v4l2chroma_to_fourcc[i].i_rmask;
+ es_fmt.video.i_gmask = v4l2chroma_to_fourcc[i].i_gmask;
+ es_fmt.video.i_bmask = v4l2chroma_to_fourcc[i].i_bmask;
break;
}
}
/* This is new in Linux 2.6.19 */
/* List supported frame rates */
struct v4l2_frmivalenum frmival;
- frmival.index = 0;
+ memset( &frmival, 0, sizeof(frmival) );
frmival.pixel_format = fmt.fmt.pix.pixelformat;
frmival.width = p_sys->i_width;
frmival.height = p_sys->i_height;
- if( ioctl( i_fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival ) >= 0 )
{
char psz_fourcc[5];
memset( &psz_fourcc, 0, sizeof( psz_fourcc ) );
vlc_fourcc_to_char( p_sys->i_fourcc, &psz_fourcc );
- msg_Dbg( p_demux, "supported frame intervals for %4s, %dx%d:",
+ msg_Dbg( p_obj, "supported frame intervals for %4.4s, %dx%d:",
psz_fourcc, frmival.width, frmival.height );
switch( frmival.type )
{
case V4L2_FRMIVAL_TYPE_DISCRETE:
do
{
- msg_Dbg( p_demux, " supported frame interval: %d/%d",
+ msg_Dbg( p_obj, " supported frame interval: %d/%d",
frmival.discrete.numerator,
frmival.discrete.denominator );
frmival.index++;
- } while( ioctl( i_fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival ) >= 0 );
+ } while( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival ) >= 0 );
break;
case V4L2_FRMIVAL_TYPE_STEPWISE:
- msg_Dbg( p_demux, " supported frame intervals: %d/%d to "
+ msg_Dbg( p_obj, " supported frame intervals: %d/%d to "
"%d/%d using %d/%d increments",
frmival.stepwise.min.numerator,
frmival.stepwise.min.denominator,
frmival.stepwise.step.denominator );
break;
case V4L2_FRMIVAL_TYPE_CONTINUOUS:
- msg_Dbg( p_demux, " supported frame intervals: %d/%d to %d/%d",
+ msg_Dbg( p_obj, " supported frame intervals: %d/%d to %d/%d",
frmival.stepwise.min.numerator,
frmival.stepwise.min.denominator,
frmival.stepwise.max.numerator,
}
#endif
+
/* Init IO method */
switch( p_sys->io )
{
case IO_METHOD_READ:
- if( InitRead( p_demux, i_fd, fmt.fmt.pix.sizeimage ) != VLC_SUCCESS ) goto open_failed;
+ if( b_demux )
+ if( InitRead( p_obj, p_sys, fmt.fmt.pix.sizeimage ) != VLC_SUCCESS ) goto open_failed;
break;
case IO_METHOD_MMAP:
- if( InitMmap( p_demux, i_fd ) != VLC_SUCCESS ) goto open_failed;
+ if( InitMmap( p_obj, p_sys, i_fd ) != VLC_SUCCESS ) goto open_failed;
break;
case IO_METHOD_USERPTR:
- if( InitUserP( p_demux, i_fd, fmt.fmt.pix.sizeimage ) != VLC_SUCCESS ) goto open_failed;
+ if( InitUserP( p_obj, p_sys, i_fd, fmt.fmt.pix.sizeimage ) != VLC_SUCCESS ) goto open_failed;
break;
+ default:
+ goto open_failed;
+ break;
}
- /* Add */
- es_format_t es_fmt;
- es_format_Init( &es_fmt, VIDEO_ES, p_sys->i_fourcc );
- es_fmt.video.i_width = p_sys->i_width;
- es_fmt.video.i_height = p_sys->i_height;
- es_fmt.video.i_aspect = 4 * VOUT_ASPECT_FACTOR / 3;
-
- /* Setup rgb mask for RGB formats */
- if( p_sys->i_fourcc == VLC_FOURCC( 'R','V','2','4' ) )
+ if( b_demux )
{
- /* This is in BGR format */
- es_fmt.video.i_bmask = 0x00ff0000;
- es_fmt.video.i_gmask = 0x0000ff00;
- es_fmt.video.i_rmask = 0x000000ff;
- }
+ /* Add */
+ es_fmt.video.i_width = p_sys->i_width;
+ es_fmt.video.i_height = p_sys->i_height;
- msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
- (char*)&es_fmt.i_codec, es_fmt.video.i_width, es_fmt.video.i_height );
- p_sys->p_es_video = es_out_Add( p_demux->out, &es_fmt );
+ /* Get aspect-ratio */
+ es_fmt.video.i_sar_num = p_sys->i_aspect * es_fmt.video.i_height;
+ es_fmt.video.i_sar_den = VOUT_ASPECT_FACTOR * es_fmt.video.i_width;
+
+ demux_t *p_demux = (demux_t *) p_obj;
+ msg_Dbg( p_demux, "added new video es %4.4s %dx%d",
+ (char*)&es_fmt.i_codec, es_fmt.video.i_width, es_fmt.video.i_height );
+ p_sys->p_es = es_out_Add( p_demux->out, &es_fmt );
+ }
/* Start Capture */
buf.memory = V4L2_MEMORY_MMAP;
buf.index = i;
- if( ioctl( i_fd, VIDIOC_QBUF, &buf ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QBUF, &buf ) < 0 )
{
- msg_Err( p_demux, "VIDIOC_QBUF failed" );
+ msg_Err( p_obj, "VIDIOC_QBUF failed" );
goto open_failed;
}
}
buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if( ioctl( i_fd, VIDIOC_STREAMON, &buf_type ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_STREAMON, &buf_type ) < 0 )
{
- msg_Err( p_demux, "VIDIOC_STREAMON failed" );
+ msg_Err( p_obj, "VIDIOC_STREAMON failed" );
goto open_failed;
}
buf.m.userptr = (unsigned long)p_sys->p_buffers[i].start;
buf.length = p_sys->p_buffers[i].length;
- if( ioctl( i_fd, VIDIOC_QBUF, &buf ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QBUF, &buf ) < 0 )
{
- msg_Err( p_demux, "VIDIOC_QBUF failed" );
+ msg_Err( p_obj, "VIDIOC_QBUF failed" );
goto open_failed;
}
}
buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if( ioctl( i_fd, VIDIOC_STREAMON, &buf_type ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_STREAMON, &buf_type ) < 0 )
{
- msg_Err( p_demux, "VIDIOC_STREAMON failed" );
+ msg_Err( p_obj, "VIDIOC_STREAMON failed" );
goto open_failed;
}
break;
+
+ default:
+ goto open_failed;
+ break;
}
/* report fps */
if( p_sys->f_fps >= 0.1 )
{
- msg_Dbg( p_demux, "User set fps=%f", p_sys->f_fps );
+ msg_Dbg( p_obj, "User set fps=%f", p_sys->f_fps );
}
return i_fd;
open_failed:
- if( i_fd >= 0 ) close( i_fd );
- return -1;
-
-}
-
-#ifdef HAVE_ALSA
-/*****************************************************************************
- * ResolveALSADeviceName: Change any . to : in the ALSA device name
- *****************************************************************************/
-static char *ResolveALSADeviceName( const char *psz_device )
-{
- char* psz_alsa_name = strdup( psz_device );
- for( unsigned int i = 0; i < strlen( psz_device ); i++ )
- {
- if( psz_alsa_name[i] == '.' ) psz_alsa_name[i] = ':';
- }
- return psz_alsa_name;
-}
-#endif
-
-/*****************************************************************************
- * OpenAudioDev: open and set up the audio device and probe for capabilities
- *****************************************************************************/
-#ifdef HAVE_ALSA
-static int OpenAudioDevAlsa( vlc_object_t *p_this, demux_sys_t *p_sys,
- vlc_bool_t b_demux )
-{
- char *psz_device = p_sys->psz_adev;
- int i_fd = 0;
- p_sys->p_alsa_pcm = NULL;
- char* psz_alsa_device_name = NULL;
- snd_pcm_hw_params_t *p_hw_params = NULL;
- snd_pcm_uframes_t buffer_size;
- snd_pcm_uframes_t chunk_size;
-
- /* ALSA */
- int i_err;
- psz_alsa_device_name =
- ResolveALSADeviceName( psz_device?: ALSA_DEFAULT );
-
- if( ( i_err = snd_pcm_open( &p_sys->p_alsa_pcm, psz_alsa_device_name,
- SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK ) ) < 0)
- {
- msg_Err( p_this, "Cannot open ALSA audio device %s (%s)",
- psz_alsa_device_name, snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- if( ( i_err = snd_pcm_nonblock( p_sys->p_alsa_pcm, 1 ) ) < 0)
- {
- msg_Err( p_this, "Cannot set ALSA nonblock (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- /* Begin setting hardware parameters */
-
- if( ( i_err = snd_pcm_hw_params_malloc( &p_hw_params ) ) < 0 )
- {
- msg_Err( p_this,
- "ALSA: cannot allocate hardware parameter structure (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- if( ( i_err = snd_pcm_hw_params_any( p_sys->p_alsa_pcm, p_hw_params ) ) < 0 )
- {
- msg_Err( p_this,
- "ALSA: cannot initialize hardware parameter structure (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- /* Set Interleaved access */
- if( ( i_err = snd_pcm_hw_params_set_access( p_sys->p_alsa_pcm, p_hw_params, SND_PCM_ACCESS_RW_INTERLEAVED ) ) < 0 )
- {
- msg_Err( p_this, "ALSA: cannot set access type (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- /* Set 16 bit little endian */
- if( ( i_err = snd_pcm_hw_params_set_format( p_sys->p_alsa_pcm, p_hw_params, SND_PCM_FORMAT_S16_LE ) ) < 0 )
- {
- msg_Err( p_this, "ALSA: cannot set sample format (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- /* Set sample rate */
-#ifdef HAVE_ALSA_NEW_API
- i_err = snd_pcm_hw_params_set_rate_near( p_sys->p_alsa_pcm, p_hw_params, &p_sys->i_sample_rate, NULL );
-#else
- i_err = snd_pcm_hw_params_set_rate_near( p_sys->p_alsa_pcm, p_hw_params, p_sys->i_sample_rate, NULL );
-#endif
- if( i_err < 0 )
- {
- msg_Err( p_this, "ALSA: cannot set sample rate (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- /* Set channels */
- unsigned int channels = p_sys->b_stereo ? 2 : 1;
- if( ( i_err = snd_pcm_hw_params_set_channels( p_sys->p_alsa_pcm, p_hw_params, channels ) ) < 0 )
- {
- channels = ( channels==1 ) ? 2 : 1;
- msg_Warn( p_this, "ALSA: cannot set channel count (%s). "
- "Trying with channels=%d",
- snd_strerror( i_err ),
- channels );
- if( ( i_err = snd_pcm_hw_params_set_channels( p_sys->p_alsa_pcm, p_hw_params, channels ) ) < 0 )
- {
- msg_Err( p_this, "ALSA: cannot set channel count (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
- p_sys->b_stereo = ( channels == 2 );
- }
-
- /* Set metrics for buffer calculations later */
- unsigned int buffer_time;
- if( ( i_err = snd_pcm_hw_params_get_buffer_time_max(p_hw_params, &buffer_time, 0) ) < 0 )
- {
- msg_Err( p_this, "ALSA: cannot get buffer time max (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
- if (buffer_time > 500000) buffer_time = 500000;
-
- /* Set period time */
- unsigned int period_time = buffer_time / 4;
-#ifdef HAVE_ALSA_NEW_API
- i_err = snd_pcm_hw_params_set_period_time_near( p_sys->p_alsa_pcm, p_hw_params, &period_time, 0 );
-#else
- i_err = snd_pcm_hw_params_set_period_time_near( p_sys->p_alsa_pcm, p_hw_params, period_time, 0 );
-#endif
- if( i_err < 0 )
- {
- msg_Err( p_this, "ALSA: cannot set period time (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- /* Set buffer time */
-#ifdef HAVE_ALSA_NEW_API
- i_err = snd_pcm_hw_params_set_buffer_time_near( p_sys->p_alsa_pcm, p_hw_params, &buffer_time, 0 );
-#else
- i_err = snd_pcm_hw_params_set_buffer_time_near( p_sys->p_alsa_pcm, p_hw_params, buffer_time, 0 );
-#endif
- if( i_err < 0 )
- {
- msg_Err( p_this, "ALSA: cannot set buffer time (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- /* Apply new hardware parameters */
- if( ( i_err = snd_pcm_hw_params( p_sys->p_alsa_pcm, p_hw_params ) ) < 0 )
- {
- msg_Err( p_this, "ALSA: cannot set hw parameters (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- /* Get various buffer metrics */
- snd_pcm_hw_params_get_period_size( p_hw_params, &chunk_size, 0 );
- snd_pcm_hw_params_get_buffer_size( p_hw_params, &buffer_size );
- if( chunk_size == buffer_size )
- {
- msg_Err( p_this,
- "ALSA: period cannot equal buffer size (%lu == %lu)",
- chunk_size, buffer_size);
- goto adev_fail;
- }
-
- int bits_per_sample = snd_pcm_format_physical_width(SND_PCM_FORMAT_S16_LE);
- int bits_per_frame = bits_per_sample * channels;
-
- p_sys->i_alsa_chunk_size = chunk_size;
- p_sys->i_alsa_frame_size = bits_per_frame / 8;
- p_sys->i_audio_max_frame_size = chunk_size * bits_per_frame / 8;
-
- snd_pcm_hw_params_free( p_hw_params );
- p_hw_params = NULL;
-
- /* Prep device */
- if( ( i_err = snd_pcm_prepare( p_sys->p_alsa_pcm ) ) < 0 )
- {
- msg_Err( p_this,
- "ALSA: cannot prepare audio interface for use (%s)",
- snd_strerror( i_err ) );
- goto adev_fail;
- }
-
- /* Return a fake handle so other tests work */
- i_fd = 1;
-
- free( psz_alsa_device_name );
-
- if( !p_sys->psz_adev )
- p_sys->psz_adev = strdup( ALSA_DEFAULT );
- return i_fd;
-
- adev_fail:
-
- if( i_fd >= 0 ) close( i_fd );
-
- if( p_hw_params ) snd_pcm_hw_params_free( p_hw_params );
- if( p_sys->p_alsa_pcm ) snd_pcm_close( p_sys->p_alsa_pcm );
- free( psz_alsa_device_name );
-
- return -1;
-
-}
-#endif
-
-static int OpenAudioDevOss( vlc_object_t *p_this, demux_sys_t *p_sys,
- vlc_bool_t b_demux )
-{
- char *psz_device = p_sys->psz_adev;
- int i_fd = 0;
- int i_format;
- /* OSS */
- if( !psz_device ) psz_device = strdup( OSS_DEFAULT ); /* FIXME leak */
-
- if( (i_fd = open( psz_device, O_RDONLY | O_NONBLOCK )) < 0 )
- {
- msg_Err( p_this, "cannot open OSS audio device (%m)" );
- goto adev_fail;
- }
-
- i_format = AFMT_S16_LE;
- if( ioctl( i_fd, SNDCTL_DSP_SETFMT, &i_format ) < 0
- || i_format != AFMT_S16_LE )
- {
- msg_Err( p_this,
- "cannot set audio format (16b little endian) (%m)" );
- goto adev_fail;
- }
-
- if( ioctl( i_fd, SNDCTL_DSP_STEREO,
- &p_sys->b_stereo ) < 0 )
- {
- msg_Err( p_this, "cannot set audio channels count (%m)" );
- goto adev_fail;
- }
-
- if( ioctl( i_fd, SNDCTL_DSP_SPEED,
- &p_sys->i_sample_rate ) < 0 )
- {
- msg_Err( p_this, "cannot set audio sample rate (%m)" );
- goto adev_fail;
- }
-
- p_sys->i_audio_max_frame_size = 6 * 1024;
-
- if( !p_sys->psz_adev )
- p_sys->psz_adev = strdup( OSS_DEFAULT );
- return i_fd;
-
- adev_fail:
-
- if( i_fd >= 0 ) close( i_fd );
+ if( i_fd >= 0 ) v4l2_close( i_fd );
return -1;
}
-static int OpenAudioDev( vlc_object_t *p_this, demux_sys_t *p_sys,
- vlc_bool_t b_demux )
-{
- char *psz_device;
- int i_fd = -1;
-
-#ifdef HAVE_ALSA
- if( ( p_sys->i_audio_method & AUDIO_METHOD_ALSA ) && i_fd < 0 )
- i_fd = OpenAudioDevAlsa( p_this, p_sys, b_demux );
-#endif
-
- if( ( p_sys->i_audio_method & AUDIO_METHOD_OSS ) && i_fd < 0 )
- i_fd = OpenAudioDevOss( p_this, p_sys, b_demux );
-
- if( i_fd < 0 )
- return i_fd;
-
- psz_device = p_sys->psz_adev;
-
- msg_Dbg( p_this, "opened adev=`%s' %s %dHz",
- psz_device, p_sys->b_stereo ? "stereo" : "mono",
- p_sys->i_sample_rate );
-
- es_format_t fmt;
- es_format_Init( &fmt, AUDIO_ES, VLC_FOURCC('a','r','a','w') );
-
- fmt.audio.i_channels = p_sys->b_stereo ? 2 : 1;
- fmt.audio.i_rate = p_sys->i_sample_rate;
- fmt.audio.i_bitspersample = 16;
- fmt.audio.i_blockalign = fmt.audio.i_channels * fmt.audio.i_bitspersample / 8;
- fmt.i_bitrate = fmt.audio.i_channels * fmt.audio.i_rate * fmt.audio.i_bitspersample;
-
- msg_Dbg( p_this, "new audio es %d channels %dHz",
- fmt.audio.i_channels, fmt.audio.i_rate );
-
- if( b_demux )
- {
- demux_t *p_demux = (demux_t *)p_this;
- p_sys->p_es_audio = es_out_Add( p_demux->out, &fmt );
- }
-
- return i_fd;
-}
-
/*****************************************************************************
* ProbeVideoDev: probe video for capabilities
*****************************************************************************/
-static vlc_bool_t ProbeVideoDev( vlc_object_t *p_obj, demux_sys_t *p_sys,
- char *psz_device )
+static bool ProbeVideoDev( vlc_object_t *p_obj, demux_sys_t *p_sys,
+ const char *psz_device )
{
int i_index;
int i_standard;
int i_fd;
- if( ( i_fd = open( psz_device, O_RDWR ) ) < 0 )
+ if( ( i_fd = v4l2_open( psz_device, O_RDWR ) ) < 0 )
{
- msg_Err( p_obj, "cannot open video device (%m)" );
+ msg_Err( p_obj, "cannot open video device '%s' (%m)", psz_device );
goto open_failed;
}
+#ifdef HAVE_LIBV4L2
+ /* Note the v4l2_xxx functions are designed so that if they get passed an
+ unknown fd, the will behave exactly as their regular xxx counterparts,
+ so if v4l2_fd_open fails, we continue as normal (missing the libv4l2
+ custom cam format to normal formats conversion). Chances are big we will
+ still fail then though, as normally v4l2_fd_open only fails if the
+ device is not a v4l2 device. */
+ if( p_sys->b_libv4l2 )
+ {
+ int libv4l2_fd;
+ libv4l2_fd = v4l2_fd_open( i_fd, V4L2_ENABLE_ENUM_FMT_EMULATION );
+ if( libv4l2_fd != -1 )
+ i_fd = libv4l2_fd;
+ }
+#endif
+
/* Get device capabilites */
- if( ioctl( i_fd, VIDIOC_QUERYCAP, &p_sys->dev_cap ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYCAP, &p_sys->dev_cap ) < 0 )
{
msg_Err( p_obj, "cannot get video capabilities (%m)" );
goto open_failed;
p_sys->dev_cap.version & 0xFF,
p_sys->dev_cap.bus_info );
- msg_Dbg( p_obj, "the device has the capabilities: (%c) Video Capure, "
+ msg_Dbg( p_obj, "the device has the capabilities: (%c) Video Capture, "
"(%c) Audio, "
- "(%c) Tuner",
+ "(%c) Tuner, "
+ "(%c) Radio",
( p_sys->dev_cap.capabilities & V4L2_CAP_VIDEO_CAPTURE ? 'X':' '),
( p_sys->dev_cap.capabilities & V4L2_CAP_AUDIO ? 'X':' '),
- ( p_sys->dev_cap.capabilities & V4L2_CAP_TUNER ? 'X':' ') );
+ ( p_sys->dev_cap.capabilities & V4L2_CAP_TUNER ? 'X':' '),
+ ( p_sys->dev_cap.capabilities & V4L2_CAP_RADIO ? 'X':' ') );
msg_Dbg( p_obj, "supported I/O methods are: (%c) Read/Write, "
"(%c) Streaming, "
( p_sys->dev_cap.capabilities & V4L2_CAP_STREAMING ? 'X':' ' ),
( p_sys->dev_cap.capabilities & V4L2_CAP_ASYNCIO ? 'X':' ' ) );
+ if( p_sys->io == IO_METHOD_AUTO )
+ {
+ if( p_sys->dev_cap.capabilities & V4L2_CAP_STREAMING )
+ p_sys->io = IO_METHOD_MMAP;
+ else if( p_sys->dev_cap.capabilities & V4L2_CAP_READWRITE )
+ p_sys->io = IO_METHOD_READ;
+ else
+ msg_Err( p_obj, "No known I/O method supported" );
+ }
+
+ if( p_sys->dev_cap.capabilities & V4L2_CAP_RDS_CAPTURE )
+ msg_Dbg( p_obj, "device supports RDS" );
+
+#ifdef V4L2_CAP_HW_FREQ_SEEK
+ if( p_sys->dev_cap.capabilities & V4L2_CAP_HW_FREQ_SEEK )
+ msg_Dbg( p_obj, "device supports hardware frequency seeking" );
+#endif
+ if( p_sys->dev_cap.capabilities & V4L2_CAP_VBI_CAPTURE )
+ msg_Dbg( p_obj, "device supports raw VBI capture" );
+
+ if( p_sys->dev_cap.capabilities & V4L2_CAP_SLICED_VBI_CAPTURE )
+ msg_Dbg( p_obj, "device supports sliced VBI capture" );
+
/* Now, enumerate all the video inputs. This is useless at the moment
since we have no way to present that info to the user except with
debug messages */
if( p_sys->dev_cap.capabilities & V4L2_CAP_VIDEO_CAPTURE )
{
struct v4l2_input t_input;
- t_input.index = 0;
- while( ioctl( i_fd, VIDIOC_ENUMINPUT, &t_input ) >= 0 )
+ memset( &t_input, 0, sizeof(t_input) );
+ p_sys->i_input = 0;
+ while( v4l2_ioctl( i_fd, VIDIOC_ENUMINPUT, &t_input ) >= 0 )
{
p_sys->i_input++;
t_input.index = p_sys->i_input;
}
+ free( p_sys->p_inputs );
p_sys->p_inputs = calloc( 1, p_sys->i_input * sizeof( struct v4l2_input ) );
if( !p_sys->p_inputs ) goto open_failed;
{
p_sys->p_inputs[i_index].index = i_index;
- if( ioctl( i_fd, VIDIOC_ENUMINPUT, &p_sys->p_inputs[i_index] ) )
+ if( v4l2_ioctl( i_fd, VIDIOC_ENUMINPUT, &p_sys->p_inputs[i_index] ) )
{
msg_Err( p_obj, "cannot get video input characteristics (%m)" );
goto open_failed;
{
struct v4l2_standard t_standards;
t_standards.index = 0;
- while( ioctl( i_fd, VIDIOC_ENUMSTD, &t_standards ) >=0 )
+ p_sys->i_standard = 0;
+ while( v4l2_ioctl( i_fd, VIDIOC_ENUMSTD, &t_standards ) >=0 )
{
p_sys->i_standard++;
t_standards.index = p_sys->i_standard;
}
+ free( p_sys->p_standards );
p_sys->p_standards = calloc( 1, p_sys->i_standard * sizeof( struct v4l2_standard ) );
if( !p_sys->p_standards ) goto open_failed;
{
p_sys->p_standards[i_standard].index = i_standard;
- if( ioctl( i_fd, VIDIOC_ENUMSTD, &p_sys->p_standards[i_standard] ) )
+ if( v4l2_ioctl( i_fd, VIDIOC_ENUMSTD, &p_sys->p_standards[i_standard] ) )
{
msg_Err( p_obj, "cannot get video input standards (%m)" );
goto open_failed;
msg_Dbg( p_obj, "video standard %i is: %s %c",
i_standard,
p_sys->p_standards[i_standard].name,
- (unsigned)i_standard == p_sys->i_selected_standard_id ? '*' : ' ' );
+ (p_sys->p_standards[i_standard].id & p_sys->i_selected_standard_id) ? '*' : ' ' );
}
}
if( p_sys->dev_cap.capabilities & V4L2_CAP_AUDIO )
{
while( p_sys->i_audio < 32 &&
- ioctl( i_fd, VIDIOC_S_AUDIO, &p_sys->p_audios[p_sys->i_audio] ) >= 0 )
+ v4l2_ioctl( i_fd, VIDIOC_S_AUDIO, &p_sys->p_audios[p_sys->i_audio] ) >= 0 )
{
- if( ioctl( i_fd, VIDIOC_G_AUDIO, &p_sys->p_audios[ p_sys->i_audio] ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_G_AUDIO, &p_sys->p_audios[ p_sys->i_audio] ) < 0 )
{
msg_Err( p_obj, "cannot get audio input characteristics (%m)" );
goto open_failed;
{
struct v4l2_tuner tuner;
memset( &tuner, 0, sizeof(tuner) );
- while( ioctl( i_fd, VIDIOC_G_TUNER, &tuner ) >= 0 )
+ p_sys->i_tuner = 0;
+ while( v4l2_ioctl( i_fd, VIDIOC_G_TUNER, &tuner ) >= 0 )
{
p_sys->i_tuner++;
memset( &tuner, 0, sizeof(tuner) );
tuner.index = p_sys->i_tuner;
}
+ free( p_sys->p_tuners );
p_sys->p_tuners = calloc( 1, p_sys->i_tuner * sizeof( struct v4l2_tuner ) );
if( !p_sys->p_tuners ) goto open_failed;
{
p_sys->p_tuners[i_index].index = i_index;
- if( ioctl( i_fd, VIDIOC_G_TUNER, &p_sys->p_tuners[i_index] ) )
+ if( v4l2_ioctl( i_fd, VIDIOC_G_TUNER, &p_sys->p_tuners[i_index] ) )
{
msg_Err( p_obj, "cannot get tuner characteristics (%m)" );
goto open_failed;
struct v4l2_frequency frequency;
memset( &frequency, 0, sizeof( frequency ) );
- if( ioctl( i_fd, VIDIOC_G_FREQUENCY, &frequency ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_G_FREQUENCY, &frequency ) < 0 )
{
msg_Err( p_obj, "cannot get tuner frequency (%m)" );
goto open_failed;
codec.index = i_index;
codec.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- while( ioctl( i_fd, VIDIOC_ENUM_FMT, &codec ) >= 0 )
+ while( v4l2_ioctl( i_fd, VIDIOC_ENUM_FMT, &codec ) >= 0 )
{
i_index++;
codec.index = i_index;
p_sys->i_codec = i_index;
+ free( p_sys->p_codecs );
p_sys->p_codecs = calloc( 1, p_sys->i_codec * sizeof( struct v4l2_fmtdesc ) );
for( i_index = 0; i_index < p_sys->i_codec; i_index++ )
p_sys->p_codecs[i_index].index = i_index;
p_sys->p_codecs[i_index].type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if( ioctl( i_fd, VIDIOC_ENUM_FMT, &p_sys->p_codecs[i_index] ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_ENUM_FMT, &p_sys->p_codecs[i_index] ) < 0 )
{
msg_Err( p_obj, "cannot get codec description (%m)" );
goto open_failed;
memset( &psz_fourcc_v4l2, 0, sizeof( psz_fourcc_v4l2 ) );
vlc_fourcc_to_char( p_sys->p_codecs[i_index].pixelformat,
&psz_fourcc_v4l2 );
- vlc_bool_t b_codec_supported = VLC_FALSE;
+ bool b_codec_supported = false;
for( int i = 0; v4l2chroma_to_fourcc[i].i_v4l2 != 0; i++ )
{
if( v4l2chroma_to_fourcc[i].i_v4l2 == p_sys->p_codecs[i_index].pixelformat )
{
- b_codec_supported = VLC_TRUE;
+ b_codec_supported = true;
char psz_fourcc[5];
memset( &psz_fourcc, 0, sizeof( psz_fourcc ) );
vlc_fourcc_to_char( v4l2chroma_to_fourcc[i].i_fourcc,
&psz_fourcc );
- msg_Dbg( p_obj, "device supports chroma %4s [%s, %s]",
+ msg_Dbg( p_obj, "device supports chroma %4.4s [%s, %s]",
psz_fourcc,
p_sys->p_codecs[i_index].description,
psz_fourcc_v4l2 );
/* This is new in Linux 2.6.19 */
/* List valid frame sizes for this format */
struct v4l2_frmsizeenum frmsize;
- frmsize.index = 0;
+ memset( &frmsize, 0, sizeof(frmsize) );
frmsize.pixel_format = p_sys->p_codecs[i_index].pixelformat;
- if( ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize ) < 0 )
{
/* Not all devices support this ioctl */
msg_Warn( p_obj, "Unable to query for frame sizes" );
" device supports size %dx%d",
frmsize.discrete.width, frmsize.discrete.height );
frmsize.index++;
- } while( ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize ) >= 0 );
+ } while( v4l2_ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize ) >= 0 );
break;
case V4L2_FRMSIZE_TYPE_STEPWISE:
msg_Dbg( p_obj,
if( !b_codec_supported )
{
msg_Dbg( p_obj,
- "device codec %4s (%s) not supported as access_demux",
+ "device codec %4.4s (%s) not supported",
psz_fourcc_v4l2,
p_sys->p_codecs[i_index].description );
}
-
}
}
- if( i_fd >= 0 ) close( i_fd );
- return VLC_TRUE;
-
-open_failed:
-
- if( i_fd >= 0 ) close( i_fd );
- return VLC_FALSE;
-
-}
-
-/*****************************************************************************
- * ProbeAudioDev: probe audio for capabilities
- *****************************************************************************/
-#ifdef HAVE_ALSA
-static vlc_bool_t ProbeAudioDevAlsa( vlc_object_t *p_this, demux_sys_t *p_sys,
- char *psz_device )
-{
- int i_err;
- snd_pcm_t *p_alsa_pcm;
- char* psz_alsa_device_name = ResolveALSADeviceName( psz_device ?: ALSA_DEFAULT );
-
- if( ( i_err = snd_pcm_open( &p_alsa_pcm, psz_alsa_device_name, SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK ) ) < 0 )
- {
- msg_Err( p_this, "cannot open device %s for ALSA audio (%s)", psz_alsa_device_name, snd_strerror( i_err ) );
- free( psz_alsa_device_name );
- return VLC_FALSE;
- }
-
- snd_pcm_close( p_alsa_pcm );
- free( psz_alsa_device_name );
-
- return VLC_TRUE;
-}
-#endif
-
-static vlc_bool_t ProbeAudioDevOss( vlc_object_t *p_this, demux_sys_t *p_sys,
- char *psz_device )
-{
- int i_fd = 0;
- int i_caps;
- if( !psz_device ) psz_device = strdup( OSS_DEFAULT ); /* FIXME leak */
-
- if( ( i_fd = open( psz_device, O_RDONLY | O_NONBLOCK ) ) < 0 )
- {
- msg_Err( p_this, "cannot open device %s for OSS audio (%m)", psz_device );
- goto open_failed;
- }
-
- /* this will fail if the device is video */
- if( ioctl( i_fd, SNDCTL_DSP_GETCAPS, &i_caps ) < 0 )
- {
- msg_Err( p_this, "cannot get audio caps (%m)" );
- goto open_failed;
- }
-
- if( i_fd >= 0 ) close( i_fd );
-
- return VLC_TRUE;
+ if( i_fd >= 0 ) v4l2_close( i_fd );
+ return true;
open_failed:
- if( i_fd >= 0 ) close( i_fd );
- return VLC_FALSE;
-}
-
-static vlc_bool_t ProbeAudioDev( vlc_object_t *p_this, demux_sys_t *p_sys,
- char *psz_device )
-{
-#ifdef HAVE_ALSA
- if( ( p_sys->i_audio_method & AUDIO_METHOD_ALSA )
- && ProbeAudioDevAlsa( p_this, p_sys, psz_device ) )
- {
- p_sys->i_audio_method = AUDIO_METHOD_ALSA;
- return VLC_TRUE;
- }
-#endif
- if( ( p_sys->i_audio_method & AUDIO_METHOD_OSS )
- && ProbeAudioDevOss( p_this, p_sys, psz_device ) )
- {
- p_sys->i_audio_method = AUDIO_METHOD_OSS;
- return VLC_TRUE;
- }
+ if( i_fd >= 0 ) v4l2_close( i_fd );
+ return false;
- p_sys->i_audio_method = 0;
- return VLC_FALSE;
}
static void name2var( unsigned char *name )
* Print a user-class v4l2 control's details, create the relevant variable,
* change the value if needed.
*****************************************************************************/
-static void ControlListPrint( vlc_object_t *p_obj, int i_fd,
+static void ControlListPrint( vlc_object_t *p_obj, demux_sys_t *p_sys, int i_fd,
struct v4l2_queryctrl queryctrl,
- vlc_bool_t b_reset, vlc_bool_t b_demux )
+ bool b_reset, bool b_demux )
{
struct v4l2_querymenu querymenu;
unsigned int i_mid;
{
querymenu.index = i_mid;
querymenu.id = queryctrl.id;
- if( ioctl( i_fd, VIDIOC_QUERYMENU, &querymenu ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYMENU, &querymenu ) >= 0 )
{
msg_Dbg( p_obj, " %d: %s",
querymenu.index, querymenu.name );
queryctrl.default_value );
memset( &control, 0, sizeof( control ) );
control.id = queryctrl.id;
- if( ioctl( i_fd, VIDIOC_G_CTRL, &control ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_G_CTRL, &control ) >= 0 )
{
msg_Dbg( p_obj, " current value: %d", control.value );
}
if( b_reset && queryctrl.default_value != control.value )
{
msg_Dbg( p_obj, " reset value to default" );
- Control( p_obj, i_fd, psz_name,
- queryctrl.id, queryctrl.default_value );
+ Control( p_obj, p_sys, i_fd, psz_name,
+ queryctrl.id, queryctrl.default_value );
}
}
else
{
- Control( p_obj, i_fd, psz_name,
- queryctrl.id, i_val );
+ Control( p_obj, p_sys, i_fd, psz_name,
+ queryctrl.id, i_val );
}
}
break;
if( b_demux )
var_AddCallback( p_obj, psz_name,
- DemuxControlCallback, (void*)queryctrl.id );
+ DemuxControlCallback, (void*)(intptr_t)queryctrl.id );
else
var_AddCallback( p_obj, psz_name,
- AccessControlCallback, (void*)queryctrl.id );
+ AccessControlCallback, (void*)(intptr_t)queryctrl.id );
free( psz_name );
}
* List all user-class v4l2 controls, set them to the user specified
* value and create the relevant variables to enable runtime changes
*****************************************************************************/
-static int ControlList( vlc_object_t *p_obj, int i_fd,
- vlc_bool_t b_reset, vlc_bool_t b_demux )
+static int ControlList( vlc_object_t *p_obj, demux_sys_t *p_sys, int i_fd,
+ bool b_reset, bool b_demux )
{
struct v4l2_queryctrl queryctrl;
int i_cid;
var_AddCallback( p_obj, "controls-reset", AccessControlResetCallback, NULL );
queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
- if( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
{
msg_Dbg( p_obj, "Extended control API supported by v4l2 driver" );
/* List extended controls */
queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
- while( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
+ while( v4l2_ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
{
if( queryctrl.type == V4L2_CTRL_TYPE_CTRL_CLASS )
{
queryctrl.name, queryctrl.id );
break;
}
- ControlListPrint( p_obj, i_fd, queryctrl, b_reset, b_demux );
+ ControlListPrint( p_obj, p_sys, i_fd, queryctrl, b_reset, b_demux );
queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
}
}
i_cid ++ )
{
queryctrl.id = i_cid;
- if( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
{
if( queryctrl.flags & V4L2_CTRL_FLAG_DISABLED )
continue;
msg_Dbg( p_obj, "Available control: %s (%x)",
queryctrl.name, queryctrl.id );
- ControlListPrint( p_obj, i_fd, queryctrl, b_reset, b_demux );
+ ControlListPrint( p_obj, p_sys, i_fd, queryctrl,
+ b_reset, b_demux );
}
}
i_cid ++ )
{
queryctrl.id = i_cid;
- if( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
{
if( queryctrl.flags & V4L2_CTRL_FLAG_DISABLED )
continue;
msg_Dbg( p_obj, "Available private control: %s (%x)",
queryctrl.name, queryctrl.id );
- ControlListPrint( p_obj, i_fd, queryctrl, b_reset, b_demux );
+ ControlListPrint( p_obj, p_sys, i_fd, queryctrl,
+ b_reset, b_demux );
}
else
break;
if( !strncasecmp( psz_name, psz_parser, i_maxstrlen ) )
{
- Control( p_obj, i_fd, psz_name, i_cid,
+ Control( p_obj, p_sys, i_fd, psz_name, i_cid,
strtol( ++psz_assign, &psz_parser, 0) );
}
+ free( name.psz_string );
}
if( psz_parser < psz_assign )
psz_parser = ( *psz_delim ) ? ( psz_delim + 1 ) : psz_delim;
}
}
+ var_FreeList( &val, &text );
}
/*****************************************************************************
* Reset all user-class v4l2 controls to their default value
*****************************************************************************/
-static int ControlReset( vlc_object_t *p_obj, int i_fd )
+static int ControlReset( vlc_object_t *p_obj, demux_sys_t *p_sys, int i_fd )
{
struct v4l2_queryctrl queryctrl;
int i_cid;
memset( &queryctrl, 0, sizeof( queryctrl ) );
queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
- if( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
{
/* Extended control API supported */
queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
- while( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
+ while( v4l2_ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
{
if( queryctrl.type == V4L2_CTRL_TYPE_CTRL_CLASS
|| V4L2_CTRL_ID2CLASS( queryctrl.id ) == V4L2_CTRL_CLASS_MPEG )
struct v4l2_control control;
memset( &control, 0, sizeof( control ) );
control.id = queryctrl.id;
- if( ioctl( i_fd, VIDIOC_G_CTRL, &control ) >= 0
+ if( v4l2_ioctl( i_fd, VIDIOC_G_CTRL, &control ) >= 0
&& queryctrl.default_value != control.value )
{
int i;
for( i = 0; controls[i].psz_name != NULL; i++ )
if( controls[i].i_cid == queryctrl.id ) break;
name2var( queryctrl.name );
- Control( p_obj, i_fd,
- controls[i].psz_name ? : (const char *)queryctrl.name,
+ Control( p_obj, p_sys, i_fd,
+ controls[i].psz_name ? controls[i].psz_name
+ : (const char *)queryctrl.name,
queryctrl.id, queryctrl.default_value );
}
queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
i_cid ++ )
{
queryctrl.id = i_cid;
- if( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
{
struct v4l2_control control;
if( queryctrl.flags & V4L2_CTRL_FLAG_DISABLED )
continue;
memset( &control, 0, sizeof( control ) );
control.id = queryctrl.id;
- if( ioctl( i_fd, VIDIOC_G_CTRL, &control ) >= 0
+ if( v4l2_ioctl( i_fd, VIDIOC_G_CTRL, &control ) >= 0
&& queryctrl.default_value != control.value )
{
int i;
for( i = 0; controls[i].psz_name != NULL; i++ )
if( controls[i].i_cid == queryctrl.id ) break;
name2var( queryctrl.name );
- Control( p_obj, i_fd,
- controls[i].psz_name ? : (const char *)queryctrl.name,
+ Control( p_obj, p_sys, i_fd,
+ controls[i].psz_name ? controls[i].psz_name
+ : (const char *)queryctrl.name,
queryctrl.id, queryctrl.default_value );
}
}
i_cid ++ )
{
queryctrl.id = i_cid;
- if( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
{
struct v4l2_control control;
if( queryctrl.flags & V4L2_CTRL_FLAG_DISABLED )
continue;
memset( &control, 0, sizeof( control ) );
control.id = queryctrl.id;
- if( ioctl( i_fd, VIDIOC_G_CTRL, &control ) >= 0
+ if( v4l2_ioctl( i_fd, VIDIOC_G_CTRL, &control ) >= 0
&& queryctrl.default_value != control.value )
{
name2var( queryctrl.name );
- Control( p_obj, i_fd, (const char *)queryctrl.name,
+ Control( p_obj, p_sys, i_fd, (const char *)queryctrl.name,
queryctrl.id, queryctrl.default_value );
}
}
/*****************************************************************************
* Issue user-class v4l2 controls
*****************************************************************************/
-static int Control( vlc_object_t *p_obj, int i_fd,
+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 )
{
+ (void)p_sys;
struct v4l2_queryctrl queryctrl;
struct v4l2_control control;
struct v4l2_ext_control ext_control;
queryctrl.id = i_cid;
- if( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) < 0
+ if( v4l2_ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) < 0
|| queryctrl.flags & V4L2_CTRL_FLAG_DISABLED )
{
msg_Dbg( p_obj, "%s (%x) control is not supported.", psz_name, i_cid );
int i_ret = -1;
- if( i_value >= 0 )
+ if( i_value >= queryctrl.minimum && i_value <= queryctrl.maximum )
{
ext_control.value = i_value;
- if( ioctl( i_fd, VIDIOC_S_EXT_CTRLS, &ext_controls ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_S_EXT_CTRLS, &ext_controls ) < 0 )
{
control.value = i_value;
- if( ioctl( i_fd, VIDIOC_S_CTRL, &control ) < 0 )
+ if( v4l2_ioctl( i_fd, VIDIOC_S_CTRL, &control ) < 0 )
{
msg_Err( p_obj, "unable to set %s (%x) to %d (%m)",
psz_name, i_cid, i_value );
return VLC_EGENERIC;
}
- i_ret = ioctl( i_fd, VIDIOC_G_CTRL, &control );
+ i_ret = v4l2_ioctl( i_fd, VIDIOC_G_CTRL, &control );
}
else
{
- i_ret = ioctl( i_fd, VIDIOC_G_EXT_CTRLS, &ext_controls );
+ i_ret = v4l2_ioctl( i_fd, VIDIOC_G_EXT_CTRLS, &ext_controls );
control.value = ext_control.value;
}
}
case VLC_VAR_BOOL:
val.b_bool = control.value;
var_Change( p_obj, psz_name, VLC_VAR_SETVALUE, &val, NULL );
- var_SetVoid( p_obj, "controls-update" );
+ var_TriggerCallback( p_obj, "controls-update" );
break;
case VLC_VAR_INTEGER:
val.i_int = control.value;
var_Change( p_obj, psz_name, VLC_VAR_SETVALUE, &val, NULL );
- var_SetVoid( p_obj, "controls-update" );
+ var_TriggerCallback( p_obj, "controls-update" );
break;
}
}
const char *psz_var, vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
+ (void)oldval;
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys = p_demux->p_sys;
- int i_cid = (int)p_data;
+ int i_cid = (long int)p_data;
- int i_fd = p_sys->i_fd_video;
+ int i_fd = p_sys->i_fd;
if( i_fd < 0 )
return VLC_EGENERIC;
- Control( p_this, i_fd, psz_var, i_cid, newval.i_int );
+ Control( p_this, p_sys, i_fd, psz_var, i_cid, newval.i_int );
return VLC_EGENERIC;
}
static int DemuxControlResetCallback( vlc_object_t *p_this,
- const char *psz_var, vlc_value_t oldval, vlc_value_t newval,
- void *p_data )
+ const char *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
+ (void)psz_var; (void)oldval; (void)newval; (void)p_data;
demux_t *p_demux = (demux_t*)p_this;
demux_sys_t *p_sys = p_demux->p_sys;
- int i_fd = p_sys->i_fd_video;
+ int i_fd = p_sys->i_fd;
if( i_fd < 0 )
return VLC_EGENERIC;
- ControlReset( p_this, i_fd );
+ ControlReset( p_this, p_sys, i_fd );
return VLC_EGENERIC;
}
const char *psz_var, vlc_value_t oldval, vlc_value_t newval,
void *p_data )
{
+ (void)oldval;
access_t *p_access = (access_t *)p_this;
demux_sys_t *p_sys = (demux_sys_t *) p_access->p_sys;
- int i_cid = (int)p_data;
+ int i_cid = (long int)p_data;
- int i_fd = p_sys->i_fd_video;
+ int i_fd = p_sys->i_fd;
if( i_fd < 0 )
return VLC_EGENERIC;
- Control( p_this, i_fd, psz_var, i_cid, newval.i_int );
+ Control( p_this, p_sys, i_fd, psz_var, i_cid, newval.i_int );
return VLC_EGENERIC;
}
static int AccessControlResetCallback( vlc_object_t *p_this,
- const char *psz_var, vlc_value_t oldval, vlc_value_t newval,
- void *p_data )
+ const char *psz_var, vlc_value_t oldval, vlc_value_t newval, void *p_data )
{
+ (void)psz_var; (void)oldval; (void)newval; (void)p_data;
access_t *p_access = (access_t *)p_this;
demux_sys_t *p_sys = (demux_sys_t *) p_access->p_sys;
- int i_fd = p_sys->i_fd_video;
+ int i_fd = p_sys->i_fd;
if( i_fd < 0 )
return VLC_EGENERIC;
- ControlReset( p_this, i_fd );
+ ControlReset( p_this, p_sys, i_fd );
return VLC_EGENERIC;
}
projects / vlc / blobdiff