/*****************************************************************************
- * v4l2.c : Video4Linux2 input module for vlc
+ * v4l2.c : Video4Linux2 input module for VLC
*****************************************************************************
- * Copyright (C) 2002-2007 the VideoLAN team
- * $Id$
+ * Copyright (C) 2002-2009 VLC authors and VideoLAN
+ * Copyright (C) 2011-2012 Rémi Denis-Courmont
*
* Authors: Benjamin Pracht <bigben at videolan dot org>
* Richard Hosking <richard at hovis dot net>
* Antoine Cellerier <dionoea at videolan d.t org>
* Dennis Lou <dlou99 at yahoo dot com>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
-/*
- * 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
- *****************************************************************************/
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
-#include <vlc/vlc.h>
-#include <vlc_access.h>
-#include <vlc_demux.h>
-#include <vlc_input.h>
-#include <vlc_vout.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
-#include <ctype.h>
+#include <sys/types.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>
-#endif
-
-#include <poll.h>
-
-/*****************************************************************************
- * Module descriptior
- *****************************************************************************/
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_fs.h>
-static int DemuxOpen ( vlc_object_t * );
-static void DemuxClose( vlc_object_t * );
-static int AccessOpen ( vlc_object_t * );
-static void AccessClose( vlc_object_t * );
+#include "v4l2.h"
-#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 VIDEO_DEVICE_TEXT N_( "Video capture device" )
+#define VIDEO_DEVICE_LONGTEXT N_("Video capture device node." )
+#define VBI_DEVICE_TEXT N_("VBI capture device")
+#define VBI_DEVICE_LONGTEXT N_( \
+ "The device node where VBI data can be read " \
+ " (for closed captions) " )
#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" )
#define AUDIO_INPUT_TEXT N_( "Audio input" )
#define AUDIO_INPUT_LONGTEXT N_( \
"Audio input of the card to use (see debug)." )
-#define IOMETHOD_TEXT N_( "IO Method" )
-#define IOMETHOD_LONGTEXT N_( \
- "IO Method (READ, MMAP, USERPTR)." )
#define WIDTH_TEXT N_( "Width" )
-#define WIDTH_LONGTEXT N_( \
- "Force width (-1 for autodetect)." )
#define HEIGHT_TEXT N_( "Height" )
-#define HEIGHT_LONGTEXT N_( \
- "Force height (-1 for autodetect)." )
-#define FPS_TEXT N_( "Framerate" )
-#define FPS_LONGTEXT N_( "Framerate to capture, if applicable " \
- "(-1 for autodetect)." )
+#define SIZE_LONGTEXT N_( \
+ "The specified pixel resolution is forced " \
+ "(if both width and height are strictly positive)." )
+/*#define FPS_TEXT N_( "Frame rate" )
+#define FPS_LONGTEXT N_( "Maximum frame rate to use (0 = no limits)." )*/
+
+#define RADIO_DEVICE_TEXT N_( "Radio device" )
+#define RADIO_DEVICE_LONGTEXT N_("Radio tuner device node." )
+#define FREQUENCY_TEXT N_("Frequency")
+#define FREQUENCY_LONGTEXT N_( \
+ "Tuner frequency in Hz or kHz (see debug output)" )
+#define TUNER_AUDIO_MODE_TEXT N_("Audio mode")
+#define TUNER_AUDIO_MODE_LONGTEXT N_( \
+ "Tuner audio mono/stereo and track selection." )
-#define CTRL_RESET_TEXT N_( "Reset v4l2 controls" )
-#define CTRL_RESET_LONGTEXT N_( \
- "Reset controls to defaults provided by the v4l2 driver." )
+#define CTRL_RESET_TEXT N_( "Reset controls" )
+#define CTRL_RESET_LONGTEXT N_( "Reset controls to defaults." )
#define BRIGHTNESS_TEXT N_( "Brightness" )
-#define BRIGHTNESS_LONGTEXT N_( \
- "Brightness of the video input (if supported by the v4l2 driver)." )
+#define BRIGHTNESS_LONGTEXT N_( "Picture brightness or black level." )
+#define BRIGHTNESS_AUTO_TEXT N_( "Automatic brightness" )
+#define BRIGHTNESS_AUTO_LONGTEXT N_( \
+ "Automatically adjust the picture brightness." )
#define CONTRAST_TEXT N_( "Contrast" )
-#define CONTRAST_LONGTEXT N_( \
- "Contrast of the video input (if supported by the v4l2 driver)." )
+#define CONTRAST_LONGTEXT N_( "Picture contrast or luma gain." )
#define SATURATION_TEXT N_( "Saturation" )
-#define SATURATION_LONGTEXT N_( \
- "Saturation of the video input (if supported by the v4l2 driver)." )
+#define SATURATION_LONGTEXT N_( "Picture saturation or chroma gain." )
#define HUE_TEXT N_( "Hue" )
-#define HUE_LONGTEXT N_( \
- "Hue of the video input (if supported by the v4l2 driver)." )
-#define BLACKLEVEL_TEXT N_( "Black level" )
-#define BLACKLEVEL_LONGTEXT N_( \
- "Black level of the video input (if supported by the v4l2 driver)." )
-#define AUTOWHITEBALANCE_TEXT N_( "Auto white balance" )
+#define HUE_LONGTEXT N_( "Hue or color balance." )
+#define HUE_AUTO_TEXT N_( "Automatic hue" )
+#define HUE_AUTO_LONGTEXT N_( \
+ "Automatically adjust the picture hue." )
+#define WHITE_BALANCE_TEMP_TEXT N_( "White balance temperature (K)" )
+#define WHITE_BALANCE_TEMP_LONGTEXT N_( \
+ "White balance temperature as a color temperation in Kelvin " \
+ "(2800 is minimum incandescence, 6500 is maximum daylight)." )
+#define AUTOWHITEBALANCE_TEXT N_( "Automatic white balance" )
#define AUTOWHITEBALANCE_LONGTEXT N_( \
- "Automatically set the white balance of the video input " \
- "(if supported by the v4l2 driver)." )
-#define DOWHITEBALANCE_TEXT N_( "Do white balance" )
-#define DOWHITEBALANCE_LONGTEXT N_( \
- "Trigger a white balancing action, useless if auto white balance is " \
- "activated (if supported by the v4l2 driver)." )
+ "Automatically adjust the picture white balance." )
#define REDBALANCE_TEXT N_( "Red balance" )
#define REDBALANCE_LONGTEXT N_( \
- "Red balance of the video input (if supported by the v4l2 driver)." )
+ "Red chroma balance." )
#define BLUEBALANCE_TEXT N_( "Blue balance" )
#define BLUEBALANCE_LONGTEXT N_( \
- "Blue balance of the video input (if supported by the v4l2 driver)." )
+ "Blue chroma balance." )
#define GAMMA_TEXT N_( "Gamma" )
#define GAMMA_LONGTEXT N_( \
- "Gamma of the video input (if supported by the v4l2 driver)." )
-#define EXPOSURE_TEXT N_( "Exposure" )
-#define EXPOSURE_LONGTEXT N_( \
- "Exposure of the video input (if supported by the v4L2 driver)." )
-#define AUTOGAIN_TEXT N_( "Auto gain" )
+ "Gamma adjust." )
+#define AUTOGAIN_TEXT N_( "Automatic gain" )
#define AUTOGAIN_LONGTEXT N_( \
- "Automatically set the video input's gain (if supported by the " \
- "v4l2 driver)." )
+ "Automatically set the video gain." )
#define GAIN_TEXT N_( "Gain" )
#define GAIN_LONGTEXT N_( \
- "Video input's gain (if supported by the v4l2 driver)." )
+ "Picture gain." )
+#define SHARPNESS_TEXT N_( "Sharpness" )
+#define SHARPNESS_LONGTEXT N_( "Sharpness filter adjust." )
+#define CHROMA_GAIN_TEXT N_( "Chroma gain" )
+#define CHROMA_GAIN_LONGTEXT N_( "Chroma gain control." )
+#define CHROMA_GAIN_AUTO_TEXT N_( "Automatic chroma gain" )
+#define CHROMA_GAIN_AUTO_LONGTEXT N_( \
+ "Automatically control the chroma gain." )
+#define POWER_FREQ_TEXT N_( "Power line frequency" )
+#define POWER_FREQ_LONGTEXT N_( \
+ "Power line frequency anti-flicker filter." )
+static const int power_freq_vlc[] = { -1,
+ V4L2_CID_POWER_LINE_FREQUENCY_DISABLED,
+ V4L2_CID_POWER_LINE_FREQUENCY_50HZ,
+ V4L2_CID_POWER_LINE_FREQUENCY_60HZ,
+ V4L2_CID_POWER_LINE_FREQUENCY_AUTO,
+};
+static const char *const power_freq_user[] = { N_("Unspecified"),
+ N_("Off"), N_("50 Hz"), N_("60 Hz"), N_("Automatic"),
+};
+#define BKLT_COMPENSATE_TEXT N_( "Backlight compensation" )
+#define BKLT_COMPENSATE_LONGTEXT BKLT_COMPENSATE_TEXT
+#define BAND_STOP_FILTER_TEXT N_( "Band-stop filter" )
+#define BAND_STOP_FILTER_LONGTEXT N_( \
+ "Cut a light band induced by fluorescent lighting (unit undocumented)." )
#define HFLIP_TEXT N_( "Horizontal flip" )
#define HFLIP_LONGTEXT N_( \
- "Flip the video horizontally (if supported by the v4l2 driver)." )
+ "Flip the picture horizontally." )
#define VFLIP_TEXT N_( "Vertical flip" )
#define VFLIP_LONGTEXT N_( \
- "Flip the video vertically (if supported by the v4l2 driver)." )
-#define HCENTER_TEXT N_( "Horizontal centering" )
-#define HCENTER_LONGTEXT N_( \
- "Set the camera's horizontal centering (if supported by the v4l2 driver)." )
-#define VCENTER_TEXT N_( "Vertical centering" )
-#define VCENTER_LONGTEXT N_( \
- "Set the camera's vertical centering (if supported by the v4l2 driver)." )
+ "Flip the picture vertically." )
+#define ROTATE_TEXT N_( "Rotate (degrees)" )
+#define ROTATE_LONGTEXT N_( "Picture rotation angle (in degrees)." )
+#define COLOR_KILLER_TEXT N_( "Color killer" )
+#define COLOR_KILLER_LONGTEXT N_( \
+ "Enable the color killer, i.e. switch to black & white picture " \
+ "whenever the signal is weak." )
+#define COLOR_EFFECT_TEXT N_( "Color effect" )
+#define COLOR_EFFECT_LONGTEXT N_( "Select a color effect." )
+static const int colorfx_vlc[] = { -1, V4L2_COLORFX_NONE,
+ V4L2_COLORFX_BW, V4L2_COLORFX_SEPIA, V4L2_COLORFX_NEGATIVE,
+ V4L2_COLORFX_EMBOSS, V4L2_COLORFX_SKETCH, V4L2_COLORFX_SKY_BLUE,
+ V4L2_COLORFX_GRASS_GREEN, V4L2_COLORFX_SKIN_WHITEN, V4L2_COLORFX_VIVID,
+};
+static const char *const colorfx_user[] = { N_("Unspecified"), N_("None"),
+ N_("Black & white"), N_("Sepia"), N_("Negative"),
+ N_("Emboss"), N_("Sketch"), N_("Sky blue"),
+ N_("Grass green"), N_("Skin whiten"), N_("Vivid"),
+};
-#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_TEXT N_( "Audio volume" )
#define AUDIO_VOLUME_LONGTEXT N_( \
- "Volume of the audio input (if supported by the v4l2 driver)." )
-#define AUDIO_BALANCE_TEXT N_( "Balance" )
+ "Volume of the audio input." )
+#define AUDIO_BALANCE_TEXT N_( "Audio balance" )
#define AUDIO_BALANCE_LONGTEXT N_( \
- "Balance of the audio input (if supported by the v4l2 driver)." )
-#define AUDIO_MUTE_TEXT N_( "Mute" )
-#define AUDIO_MUTE_LONGTEXT N_( \
- "Mute audio input (if supported by the v4l2 driver)." )
-#define AUDIO_BASS_TEXT N_( "Bass" )
+ "Balance of the audio input." )
+#define AUDIO_BASS_TEXT N_( "Bass level" )
#define AUDIO_BASS_LONGTEXT N_( \
- "Bass level of the audio input (if supported by the v4l2 driver)." )
-#define AUDIO_TREBLE_TEXT N_( "Treble" )
+ "Bass adjustment of the audio input." )
+#define AUDIO_TREBLE_TEXT N_( "Treble level" )
#define AUDIO_TREBLE_LONGTEXT N_( \
- "Treble level of the audio input (if supported by the v4l2 driver)." )
-#define AUDIO_LOUDNESS_TEXT N_( "Loudness" )
+ "Treble adjustment of the audio input." )
+#define AUDIO_MUTE_TEXT N_( "Mute" )
+#define AUDIO_MUTE_LONGTEXT N_( \
+ "Mute the audio." )
+#define AUDIO_LOUDNESS_TEXT N_( "Loudness mode" )
#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)" )
+ "Loudness mode a.k.a. bass boost." )
-#define CACHING_TEXT N_("Caching value in ms")
-#define CACHING_LONGTEXT N_( \
- "Caching value for V4L2 captures. This " \
- "value should be set in milliseconds." )
#define S_CTRLS_TEXT N_("v4l2 driver controls")
#define S_CTRLS_LONGTEXT N_( \
"Set the v4l2 driver controls to the values specified using a comma " \
"To list available controls, increase verbosity (-vvv) " \
"or use the v4l2-ctl application." )
-#define TUNER_TEXT N_("Tuner id")
-#define TUNER_LONGTEXT N_( \
- "Tuner id (see debug output)." )
-#define FREQUENCY_TEXT N_("Frequency")
-#define FREQUENCY_LONGTEXT N_( \
- "Tuner frequency in Hz or kHz (see debug output)" )
-#define TUNER_AUDIO_MODE_TEXT N_("Audio mode")
-#define TUNER_AUDIO_MODE_LONGTEXT N_( \
- "Tuner audio mono/stereo and track selection." )
-
-typedef enum {
- 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[] =
- { 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[] =
- { N_( "Mono" ),
- N_( "Stereo" ),
- N_( "Primary language (Analog TV tuners only)" ),
- N_( "Secondary language (Analog TV tuners only)" ),
- N_( "Second audio program (Analog TV tuners only)" ),
- N_( "Primary language left, Secondary language right" ) };
-
-#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 CFG_PREFIX "v4l2-"
-
-vlc_module_begin();
- set_shortname( _("Video4Linux2") );
- set_description( _("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 );
- change_safe();
- add_integer( CFG_PREFIX "standard", 0, NULL, STANDARD_TEXT,
- STANDARD_LONGTEXT, VLC_FALSE );
- change_safe();
- change_integer_list( i_standards_list, psz_standards_list_text, 0 );
- add_string( CFG_PREFIX "chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
- VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "input", 0, NULL, INPUT_TEXT, INPUT_LONGTEXT,
- VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "audio-input", 0, NULL, AUDIO_INPUT_TEXT,
- AUDIO_INPUT_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "io", IO_METHOD_MMAP, NULL, IOMETHOD_TEXT,
- IOMETHOD_LONGTEXT, VLC_TRUE );
- change_safe();
- change_integer_list( i_iomethod_list, psz_iomethod_list_text, 0 );
- add_integer( CFG_PREFIX "width", 0, NULL, WIDTH_TEXT,
- WIDTH_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "height", 0, NULL, HEIGHT_TEXT,
- HEIGHT_LONGTEXT, VLC_TRUE );
- change_safe();
- add_float( CFG_PREFIX "fps", 0, NULL, FPS_TEXT, FPS_LONGTEXT, VLC_TRUE );
- change_safe();
+#define ASPECT_TEXT N_("Picture aspect-ratio n:m")
+#define ASPECT_LONGTEXT N_("Define input picture aspect-ratio to use. Default is 4:3" )
+
+static const int tristate_vlc[] = { -1, 0, 1 };
+static const char *const tristate_user[] = {
+ N_("Unspecified"), N_("Off"), N_("On") };
+
+static const v4l2_std_id standards_v4l2[] = { V4L2_STD_UNKNOWN, V4L2_STD_ALL,
+ V4L2_STD_PAL, V4L2_STD_PAL_BG, V4L2_STD_PAL_DK,
+ V4L2_STD_NTSC,
+ V4L2_STD_SECAM, V4L2_STD_SECAM_DK,
+ V4L2_STD_MTS, V4L2_STD_525_60, V4L2_STD_625_50,
+ V4L2_STD_ATSC,
+
+ V4L2_STD_B, V4L2_STD_G, V4L2_STD_H, V4L2_STD_L,
+ V4L2_STD_GH, V4L2_STD_DK, V4L2_STD_BG, V4L2_STD_MN,
+
+ 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 standards_vlc[] = { "", "ALL",
+ /* Pseudo standards */
+ "PAL", "PAL_BG", "PAL_DK",
+ "NTSC",
+ "SECAM", "SECAM_DK",
+ "MTS", "525_60", "625_50",
+ "ATSC",
+
+ /* Chroma-agnostic ITU standards (PAL/NTSC or PAL/SECAM) */
+ "B", "G", "H", "L",
+ "GH", "DK", "BG", "MN",
+
+ /* Individual standards */
+ "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 char *const standards_user[] = { N_("Undefined"), N_("All"),
+ "PAL", "PAL B/G", "PAL D/K",
+ "NTSC",
+ "SECAM", "SECAM D/K",
+ N_("Multichannel television sound (MTS)"),
+ N_("525 lines / 60 Hz"), N_("625 lines / 50 Hz"),
+ "ATSC",
+
+ "PAL/SECAM B", "PAL/SECAM G", "PAL/SECAM H", "PAL/SECAM L",
+ "PAL/SECAM G/H", "PAL/SECAM D/K", "PAL/SECAM B/G", "PAL/NTSC M/N",
+
+ "PAL B", "PAL B1", "PAL G", "PAL H",
+ "PAL I", "PAL D", "PAL D1", "PAL K",
+ "PAL M", "PAL N", N_("PAL N Argentina"), "PAL 60",
+ "NTSC M", N_("NTSC M Japan"), "NTSC 443", N_("NTSC M South Korea"),
+ "SECAM B", "SECAM D", "SECAM G", "SECAM H",
+ "SECAM K", "SECAM K1", "SECAM L", "SECAM L/C",
+ "ATSC 8-VSB", "ATSC 16-VSB",
+};
- set_section( N_( "Audio input" ), NULL );
- add_string( CFG_PREFIX "adev", NULL, 0, ADEV_TEXT, ADEV_LONGTEXT,
- VLC_FALSE );
- change_safe();
- add_integer( CFG_PREFIX "audio-method", AUDIO_METHOD_OSS|AUDIO_METHOD_ALSA,
- NULL, AUDIO_METHOD_TEXT, AUDIO_METHOD_LONGTEXT, VLC_TRUE );
- change_safe();
- add_bool( CFG_PREFIX "stereo", VLC_TRUE, NULL, STEREO_TEXT, STEREO_LONGTEXT,
- VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "samplerate", 48000, NULL, SAMPLERATE_TEXT,
- SAMPLERATE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "caching", DEFAULT_PTS_DELAY / 1000, NULL,
- CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
- change_safe();
+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_LANG1_LANG2
+};
+static const char *const psz_tuner_audio_modes_list_text[] = {
+ N_("Mono"),
+ N_("Stereo"),
+ N_("Primary language"),
+ N_("Secondary language or program"),
+ N_("Dual mono" )
+};
- set_section( N_( "Tuner" ), NULL );
- add_integer( CFG_PREFIX "tuner", 0, NULL, TUNER_TEXT, TUNER_LONGTEXT,
- VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "tuner-frequency", -1, NULL, FREQUENCY_TEXT,
- FREQUENCY_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "tuner-audio-mode", -1, NULL, TUNER_AUDIO_MODE_TEXT,
- TUNER_AUDIO_MODE_LONGTEXT, VLC_TRUE );
- change_safe();
+vlc_module_begin ()
+ set_shortname( N_("V4L") )
+ set_description( N_("Video4Linux input") )
+ set_category( CAT_INPUT )
+ set_subcategory( SUBCAT_INPUT_ACCESS )
+
+ set_section( N_( "Video input" ), NULL )
+ add_loadfile( CFG_PREFIX "dev", "/dev/video0",
+ VIDEO_DEVICE_TEXT, VIDEO_DEVICE_LONGTEXT, false )
+ change_safe()
+#ifdef ZVBI_COMPILED
+ add_loadfile( CFG_PREFIX "vbidev", NULL,
+ VBI_DEVICE_TEXT, VBI_DEVICE_LONGTEXT, false )
+#endif
+ add_string( CFG_PREFIX "standard", "",
+ STANDARD_TEXT, STANDARD_LONGTEXT, false )
+ change_string_list( standards_vlc, standards_user )
+ change_safe()
+ add_string( CFG_PREFIX "chroma", NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
+ true )
+ change_safe()
+ add_integer( CFG_PREFIX "input", 0, INPUT_TEXT, INPUT_LONGTEXT,
+ true )
+ change_integer_range( 0, 0xFFFFFFFE )
+ change_safe()
+ add_integer( CFG_PREFIX "audio-input", -1, AUDIO_INPUT_TEXT,
+ AUDIO_INPUT_LONGTEXT, true )
+ change_integer_range( -1, 0xFFFFFFFE )
+ change_safe()
+ add_obsolete_integer( CFG_PREFIX "io" ) /* since 2.0.0 */
+ add_integer( CFG_PREFIX "width", 0, WIDTH_TEXT, SIZE_LONGTEXT, false )
+ change_integer_range( 0, VOUT_MAX_WIDTH )
+ change_safe()
+ add_integer( CFG_PREFIX "height", 0, HEIGHT_TEXT, SIZE_LONGTEXT, false )
+ change_integer_range( 0, VOUT_MAX_WIDTH )
+ change_safe()
+ add_string( CFG_PREFIX "aspect-ratio", "4:3", ASPECT_TEXT,
+ ASPECT_LONGTEXT, true )
+ change_safe()
+ /*add_float( CFG_PREFIX "fps", 0, FPS_TEXT, FPS_LONGTEXT, true )*/
+ add_obsolete_float( CFG_PREFIX "fps" )
+ change_safe() /* since 2.1.0 */
+ add_obsolete_bool( CFG_PREFIX "use-libv4l2" ) /* since 2.1.0 */
+
+ set_section( N_( "Tuner" ), NULL )
+ add_loadfile( CFG_PREFIX "radio-dev", "/dev/radio0",
+ RADIO_DEVICE_TEXT, RADIO_DEVICE_LONGTEXT, false )
+ change_safe()
+ add_obsolete_integer( CFG_PREFIX "tuner" ) /* since 2.1.0 */
+ add_integer( CFG_PREFIX "tuner-frequency", -1, FREQUENCY_TEXT,
+ FREQUENCY_LONGTEXT, true )
+ change_integer_range( -1, 0xFFFFFFFE )
+ change_safe()
+ add_integer( CFG_PREFIX "tuner-audio-mode", V4L2_TUNER_MODE_LANG1,
+ TUNER_AUDIO_MODE_TEXT, 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 )
+ change_safe()
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 );
- change_safe();
- add_integer( CFG_PREFIX "brightness", -1, NULL, BRIGHTNESS_TEXT,
- BRIGHTNESS_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "contrast", -1, NULL, CONTRAST_TEXT,
- CONTRAST_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "saturation", -1, NULL, SATURATION_TEXT,
- SATURATION_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "hue", -1, NULL, HUE_TEXT,
- HUE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "black-level", -1, NULL, BLACKLEVEL_TEXT,
- BLACKLEVEL_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "auto-white-balance", -1, NULL,
- AUTOWHITEBALANCE_TEXT, AUTOWHITEBALANCE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "do-white-balance", -1, NULL, DOWHITEBALANCE_TEXT,
- DOWHITEBALANCE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "red-balance", -1, NULL, REDBALANCE_TEXT,
- REDBALANCE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "blue-balance", -1, NULL, BLUEBALANCE_TEXT,
- BLUEBALANCE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "gamma", -1, NULL, GAMMA_TEXT,
- GAMMA_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "exposure", -1, NULL, EXPOSURE_TEXT,
- EXPOSURE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "autogain", -1, NULL, AUTOGAIN_TEXT,
- AUTOGAIN_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "gain", -1, NULL, GAIN_TEXT,
- GAIN_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "hflip", -1, NULL, HFLIP_TEXT,
- HFLIP_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "vflip", -1, NULL, VFLIP_TEXT,
- VFLIP_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "hcenter", -1, NULL, HCENTER_TEXT,
- HCENTER_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "vcenter", -1, NULL, VCENTER_TEXT,
- VCENTER_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "audio-volume", -1, NULL, AUDIO_VOLUME_TEXT,
- AUDIO_VOLUME_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "audio-balance", -1, NULL, AUDIO_BALANCE_TEXT,
- AUDIO_BALANCE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_bool( CFG_PREFIX "audio-mute", VLC_FALSE, NULL, AUDIO_MUTE_TEXT,
- AUDIO_MUTE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "audio-bass", -1, NULL, AUDIO_BASS_TEXT,
- AUDIO_BASS_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "audio-treble", -1, NULL, AUDIO_TREBLE_TEXT,
- AUDIO_TREBLE_LONGTEXT, VLC_TRUE );
- change_safe();
- add_integer( CFG_PREFIX "audio-loudness", -1, NULL, AUDIO_LOUDNESS_TEXT,
- AUDIO_LOUDNESS_LONGTEXT, VLC_TRUE );
- change_safe();
- add_string( CFG_PREFIX "set-ctrls", NULL, NULL, S_CTRLS_TEXT,
- S_CTRLS_LONGTEXT, VLC_TRUE );
- change_safe();
-
- add_shortcut( "v4l2" );
- set_capability( "access_demux", 10 );
- set_callbacks( DemuxOpen, DemuxClose );
-
- add_submodule();
- add_shortcut( "v4l2c" );
- set_description( _("Video4Linux2 Compressed A/V") );
- set_capability( "access2", 0 );
+ N_( "Video capture controls (if supported by the device)" ) )
+ add_bool( CFG_PREFIX "controls-reset", false, CTRL_RESET_TEXT,
+ CTRL_RESET_LONGTEXT, true )
+ change_safe()
+ add_integer( CFG_PREFIX "brightness", -1, BRIGHTNESS_TEXT,
+ BRIGHTNESS_LONGTEXT, true )
+ add_integer( CFG_PREFIX "brightness-auto", -1,
+ BRIGHTNESS_AUTO_TEXT, BRIGHTNESS_AUTO_LONGTEXT, true )
+ change_integer_list( tristate_vlc, tristate_user )
+ add_integer( CFG_PREFIX "contrast", -1, CONTRAST_TEXT,
+ CONTRAST_LONGTEXT, true )
+ add_integer( CFG_PREFIX "saturation", -1, SATURATION_TEXT,
+ SATURATION_LONGTEXT, true )
+ add_integer( CFG_PREFIX "hue", -1, HUE_TEXT,
+ HUE_LONGTEXT, true )
+ add_integer( CFG_PREFIX "hue-auto", -1,
+ HUE_AUTO_TEXT, HUE_AUTO_LONGTEXT, true )
+ change_integer_list( tristate_vlc, tristate_user )
+ add_obsolete_integer( CFG_PREFIX "black-level" ) /* since Linux 2.6.26 */
+ add_integer( CFG_PREFIX "white-balance-temperature", -1,
+ WHITE_BALANCE_TEMP_TEXT, WHITE_BALANCE_TEMP_LONGTEXT, true )
+ /* Ideally, the range should be 2800-6500 */
+ change_integer_range( -1, 6500 )
+ add_integer( CFG_PREFIX "auto-white-balance", -1,
+ AUTOWHITEBALANCE_TEXT, AUTOWHITEBALANCE_LONGTEXT, true )
+ change_integer_list( tristate_vlc, tristate_user )
+ add_obsolete_integer( CFG_PREFIX"do-white-balance" ) /* since 2.0.0 */
+ add_integer( CFG_PREFIX "red-balance", -1, REDBALANCE_TEXT,
+ REDBALANCE_LONGTEXT, true )
+ add_integer( CFG_PREFIX "blue-balance", -1, BLUEBALANCE_TEXT,
+ BLUEBALANCE_LONGTEXT, true )
+ add_integer( CFG_PREFIX "gamma", -1, GAMMA_TEXT,
+ GAMMA_LONGTEXT, true )
+ add_integer( CFG_PREFIX "autogain", -1, AUTOGAIN_TEXT,
+ AUTOGAIN_LONGTEXT, true )
+ change_integer_list( tristate_vlc, tristate_user )
+ add_integer( CFG_PREFIX "gain", -1, GAIN_TEXT,
+ GAIN_LONGTEXT, true )
+ add_integer( CFG_PREFIX "sharpness", -1,
+ SHARPNESS_TEXT, SHARPNESS_LONGTEXT, true )
+ add_integer( CFG_PREFIX "chroma-gain", -1,
+ CHROMA_GAIN_TEXT, CHROMA_GAIN_LONGTEXT, true )
+ add_integer( CFG_PREFIX "chroma-gain-auto", -1,
+ CHROMA_GAIN_AUTO_TEXT, CHROMA_GAIN_AUTO_LONGTEXT, true )
+ add_integer( CFG_PREFIX"power-line-frequency", -1,
+ POWER_FREQ_TEXT, POWER_FREQ_LONGTEXT, true )
+ change_integer_list( power_freq_vlc, power_freq_user )
+ add_integer( CFG_PREFIX"backlight-compensation", -1,
+ BKLT_COMPENSATE_TEXT, BKLT_COMPENSATE_LONGTEXT, true )
+ add_integer( CFG_PREFIX "band-stop-filter", -1,
+ BAND_STOP_FILTER_TEXT, BAND_STOP_FILTER_LONGTEXT, true )
+ add_bool( CFG_PREFIX "hflip", false, HFLIP_TEXT, HFLIP_LONGTEXT, true )
+ add_bool( CFG_PREFIX "vflip", false, VFLIP_TEXT, VFLIP_LONGTEXT, true )
+ add_integer( CFG_PREFIX "rotate", -1, ROTATE_TEXT, ROTATE_LONGTEXT, true )
+ change_integer_range( -1, 359 )
+ add_obsolete_integer( CFG_PREFIX "hcenter" ) /* since Linux 2.6.26 */
+ add_obsolete_integer( CFG_PREFIX "vcenter" ) /* since Linux 2.6.26 */
+ add_integer( CFG_PREFIX"color-killer", -1,
+ COLOR_KILLER_TEXT, COLOR_KILLER_LONGTEXT, true )
+ change_integer_list( tristate_vlc, tristate_user )
+ add_integer( CFG_PREFIX"color-effect", -1,
+ COLOR_EFFECT_TEXT, COLOR_EFFECT_LONGTEXT, true )
+ change_integer_list( colorfx_vlc, colorfx_user )
+
+ add_integer( CFG_PREFIX "audio-volume", -1, AUDIO_VOLUME_TEXT,
+ AUDIO_VOLUME_LONGTEXT, true )
+ add_integer( CFG_PREFIX "audio-balance", -1, AUDIO_BALANCE_TEXT,
+ AUDIO_BALANCE_LONGTEXT, true )
+ add_bool( CFG_PREFIX "audio-mute", false, AUDIO_MUTE_TEXT,
+ AUDIO_MUTE_LONGTEXT, true )
+ add_integer( CFG_PREFIX "audio-bass", -1, AUDIO_BASS_TEXT,
+ AUDIO_BASS_LONGTEXT, true )
+ add_integer( CFG_PREFIX "audio-treble", -1, AUDIO_TREBLE_TEXT,
+ AUDIO_TREBLE_LONGTEXT, true )
+ add_bool( CFG_PREFIX "audio-loudness", false, AUDIO_LOUDNESS_TEXT,
+ AUDIO_LOUDNESS_LONGTEXT, true )
+ add_string( CFG_PREFIX "set-ctrls", NULL, S_CTRLS_TEXT,
+ S_CTRLS_LONGTEXT, true )
+ change_safe()
+
+ 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_shortcut( "v4l", "v4l2" )
+ set_capability( "access_demux", 0 )
+ set_callbacks( DemuxOpen, DemuxClose )
+
+ add_submodule ()
+ add_shortcut( "v4l", "v4l2", "v4l2c" )
+ set_description( N_("Video4Linux compressed A/V input") )
+ set_capability( "access", 0 )
/* use these when open as access_demux fails; VLC will use another demux */
- set_callbacks( AccessOpen, AccessClose );
-
-vlc_module_end();
-
-/*****************************************************************************
- * Access: local prototypes
- *****************************************************************************/
-
-static void CommonClose( vlc_object_t *, demux_sys_t * );
-static void ParseMRL( demux_sys_t *, char *, vlc_object_t * );
-static void GetV4L2Params( demux_sys_t *, vlc_object_t * );
-static void SetAvailControlsByString( vlc_object_t *, demux_sys_t *, int );
-
-static int DemuxControl( demux_t *, int, va_list );
-static int AccessControl( access_t *, int, va_list );
-
-static int Demux( demux_t * );
-static ssize_t AccessRead( access_t *, uint8_t *, size_t );
-
-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 vlc_bool_t 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,
- const char *psz_name, int i_cid, int i_value );
+ set_callbacks( AccessOpen, AccessClose )
-static int DemuxControlCallback( vlc_object_t *p_this, const char *psz_var,
- vlc_value_t oldval, vlc_value_t newval,
- void *p_data );
-static int DemuxControlResetCallback( vlc_object_t *p_this, const char *psz_var,
- vlc_value_t oldval, vlc_value_t newval,
- void *p_data );
-static int AccessControlCallback( vlc_object_t *p_this, const char *psz_var,
- vlc_value_t oldval, vlc_value_t newval,
- void *p_data );
-static int AccessControlResetCallback( vlc_object_t *p_this,
- const char *psz_var, vlc_value_t oldval,
- vlc_value_t newval, void *p_data );
+ add_submodule ()
+ add_shortcut ("radio" /*, "fm", "am" */)
+ set_description (N_("Video4Linux radio tuner"))
+ set_capability ("access_demux", 0)
+ set_callbacks (RadioOpen, RadioClose)
-static struct
-{
- unsigned int i_v4l2;
- int i_fourcc;
-} 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') },
-
- /* 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') }, */
-
- /* Compressed data types */
- { V4L2_PIX_FMT_MJPEG, VLC_FOURCC('M','J','P','G') },
-#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 }
-};
+vlc_module_end ()
/**
- * List of V4L2 chromas were confident enough to use as fallbacks if the
- * user hasn't provided a --v4l2-chroma value.
+ * Parses a V4L2 MRL into VLC object variables.
*/
-static const __u32 p_chroma_fallbacks[] =
-{ V4L2_PIX_FMT_YUV420, V4L2_PIX_FMT_YVU420, V4L2_PIX_FMT_YUV422P,
- V4L2_PIX_FMT_YUYV, V4L2_PIX_FMT_MJPEG };
-
-static struct
-{
- const char *psz_name;
- unsigned int i_cid;
-} controls[] =
-{
- { "brightness", V4L2_CID_BRIGHTNESS },
- { "contrast", V4L2_CID_CONTRAST },
- { "saturation", V4L2_CID_SATURATION },
- { "hue", V4L2_CID_HUE },
- { "audio-volume", V4L2_CID_AUDIO_VOLUME },
- { "audio-balance", V4L2_CID_AUDIO_BALANCE },
- { "audio-bass", V4L2_CID_AUDIO_BASS },
- { "audio-treble", V4L2_CID_AUDIO_TREBLE },
- { "audio-mute", V4L2_CID_AUDIO_MUTE },
- { "audio-loudness", V4L2_CID_AUDIO_LOUDNESS },
- { "black-level", V4L2_CID_BLACK_LEVEL },
- { "auto-white-balance", V4L2_CID_AUTO_WHITE_BALANCE },
- { "do-white-balance", V4L2_CID_DO_WHITE_BALANCE },
- { "red-balance", V4L2_CID_RED_BALANCE },
- { "blue-balance", V4L2_CID_BLUE_BALANCE },
- { "gamma", V4L2_CID_GAMMA },
- { "exposure", V4L2_CID_EXPOSURE },
- { "autogain", V4L2_CID_AUTOGAIN },
- { "gain", V4L2_CID_GAIN },
- { "hflip", V4L2_CID_HFLIP },
- { "vflip", V4L2_CID_VFLIP },
- { "hcenter", V4L2_CID_HCENTER },
- { "vcenter", V4L2_CID_VCENTER },
- { NULL, 0 }
-};
-
-struct buffer_t
-{
- 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_requested_chroma;
-
- /* Video */
- io_method io;
-
- int i_pts;
-
- struct v4l2_capability dev_cap;
-
- int i_input;
- struct v4l2_input *p_inputs;
- int i_selected_input;
-
- int i_standard;
- struct v4l2_standard *p_standards;
- v4l2_std_id i_selected_standard_id;
-
- int i_audio;
- /* V4L2 devices cannot have more than 32 audio inputs */
- struct v4l2_audio p_audios[32];
- int i_selected_audio_input;
-
- int i_tuner;
- struct v4l2_tuner *p_tuners;
-
- int i_codec;
- struct v4l2_fmtdesc *p_codecs;
-
- struct buffer_t *p_buffers;
- unsigned int i_nbuffers;
-
- int i_width;
- int i_height;
- 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;
-
- 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
-
- /* Tuner */
- int i_cur_tuner;
- int i_frequency;
- int i_audio_mode;
-
- /* 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 )
+void ParseMRL( vlc_object_t *obj, const char *mrl )
{
- /* 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 */
- }
- }
- }
-
- /* 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;
- }
-
- /* 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" );
- }
-
- 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 );
- }
- }
+ const char *p = strchr( mrl, ':' );
+ char *dev = NULL;
- /* Find audio device */
- if( i_flags & FIND_AUDIO && p_sys->i_fd_audio < 0 )
+ if( p != NULL )
{
- 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 );
- }
+ var_LocationParse( obj, p + 1, CFG_PREFIX );
+ if( p > mrl )
+ dev = strndup( mrl, p - mrl );
}
-
- if( !( ( i_flags & FIND_VIDEO && p_sys->i_fd_video >= 0 )
- || ( i_flags & FIND_AUDIO && p_sys->i_fd_audio >= 0 ) ) )
+ else
{
- return VLC_EGENERIC;
+ if( mrl[0] )
+ dev = strdup( mrl );
}
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * DemuxOpen: opens v4l2 device, access_demux callback
- *****************************************************************************
- *
- * url: <video device>::::
- *
- *****************************************************************************/
-static int DemuxOpen( vlc_object_t *p_this )
-{
- demux_t *p_demux = (demux_t*)p_this;
- demux_sys_t *p_sys;
- /* Only when selected */
- if( *p_demux->psz_access == '\0' ) return VLC_EGENERIC;
-
- /* Set up p_demux */
- p_demux->pf_control = DemuxControl;
- p_demux->pf_demux = Demux;
- p_demux->info.i_update = 0;
- p_demux->info.i_title = 0;
- p_demux->info.i_seekpoint = 0;
-
- p_demux->p_sys = p_sys = calloc( 1, sizeof( demux_sys_t ) );
- if( p_sys == NULL ) return VLC_ENOMEM;
-
- GetV4L2Params(p_sys, (vlc_object_t *) p_demux);
-
- ParseMRL( p_sys, p_demux->psz_path, (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 )
+ if( dev != NULL )
{
- DemuxClose( p_this );
- return VLC_EGENERIC;
+ var_Create( obj, CFG_PREFIX"dev", VLC_VAR_STRING );
+ var_SetString( obj, CFG_PREFIX"dev", dev );
+ free( dev );
}
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * GetV4L2Params: fill in p_sys parameters (shared by DemuxOpen and AccessOpen)
- *****************************************************************************/
-static void GetV4L2Params( demux_sys_t *p_sys, vlc_object_t *p_obj )
-{
- p_sys->i_video_pts = -1;
-
- p_sys->i_selected_standard_id =
- i_standards_list[var_CreateGetInteger( p_obj, "v4l2-standard" )];
-
- p_sys->i_selected_input = var_CreateGetInteger( p_obj, "v4l2-input" );
- p_sys->i_selected_audio_input =
- var_CreateGetInteger( p_obj, "v4l2-audio-input" );
-
- p_sys->io = var_CreateGetInteger( p_obj, "v4l2-io" );
-
- 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" );
-
- 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_cur_tuner = var_CreateGetInteger( p_obj, "v4l2-tuner" );
- p_sys->i_frequency = var_CreateGetInteger( p_obj, "v4l2-tuner-frequency" );
- p_sys->i_audio_mode = var_CreateGetInteger( p_obj, "v4l2-tuner-audio-mode" );
-
- 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;
-
- p_sys->p_es_video = p_sys->p_es_audio = 0;
- p_sys->p_block_audio = 0;
}
-/*****************************************************************************
- * ParseMRL: parse the options contained in the MRL
- *****************************************************************************/
-static void ParseMRL( demux_sys_t *p_sys, char *psz_path, vlc_object_t *p_obj )
+int OpenDevice (vlc_object_t *obj, const char *path, uint32_t *restrict caps)
{
- char *psz_dup = strdup( psz_path );
- char *psz_parser = psz_dup;
-
- while( *psz_parser && *psz_parser != ':' )
- {
- psz_parser++;
- }
-
- if( *psz_parser == ':' )
- {
- /* read options */
- for( ;; )
- {
- *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=" ) ) )
- {
- psz_parser += strlen( "standard=" );
- if( !strncmp( psz_parser, "pal", strlen( "pal" ) ) )
- {
- 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" );
- }
- else
- {
- p_sys->i_selected_standard_id = i_standards_list[strtol( psz_parser, &psz_parser, 0 )];
- }
- }
- else if( !strncmp( psz_parser, "chroma=", strlen( "chroma=" ) ) )
- {
- int i_len;
-
- psz_parser += strlen( "chroma=" );
- if( strchr( psz_parser, ':' ) )
- {
- i_len = strchr( psz_parser, ':' ) - psz_parser;
- }
- else
- {
- i_len = strlen( psz_parser );
- }
-
- if( p_sys->psz_requested_chroma ) free( p_sys->psz_requested_chroma );
- p_sys->psz_requested_chroma = strndup( psz_parser, i_len );
+ msg_Dbg (obj, "opening device '%s'", path);
- psz_parser += i_len;
- }
- else if( !strncmp( psz_parser, "input=", strlen( "input=" ) ) )
- {
- p_sys->i_selected_input = strtol( psz_parser + strlen( "input=" ),
- &psz_parser, 0 );
- }
- else if( !strncmp( psz_parser, "audio-input=", strlen( "audio-input=" ) ) )
- {
- p_sys->i_selected_audio_input = strtol( psz_parser + strlen( "audio-input=" ),
- &psz_parser, 0 );
- }
- else if( !strncmp( psz_parser, "fps=", strlen( "fps=" ) ) )
- {
- p_sys->f_fps = strtof( psz_parser + strlen( "fps=" ),
- &psz_parser );
- }
- else if( !strncmp( psz_parser, "io=", strlen( "io=" ) ) )
- {
- psz_parser += strlen( "io=" );
- if( !strncmp( psz_parser, "read", strlen( "read" ) ) )
- {
- p_sys->io = IO_METHOD_READ;
- psz_parser += strlen( "read" );
- }
- else if( !strncmp( psz_parser, "mmap", strlen( "mmap" ) ) )
- {
- p_sys->io = IO_METHOD_MMAP;
- psz_parser += strlen( "mmap" );
- }
- else if( !strncmp( psz_parser, "userptr", strlen( "userptr" ) ) )
- {
- p_sys->io = IO_METHOD_USERPTR;
- psz_parser += strlen( "userptr" );
- }
- else
- {
- p_sys->io = strtol( psz_parser, &psz_parser, 0 );
- }
- }
- else if( !strncmp( psz_parser, "width=",
- strlen( "width=" ) ) )
- {
- p_sys->i_width =
- strtol( psz_parser + strlen( "width=" ),
- &psz_parser, 0 );
- }
- else if( !strncmp( psz_parser, "height=",
- strlen( "height=" ) ) )
- {
- p_sys->i_height =
- strtol( psz_parser + strlen( "height=" ),
- &psz_parser, 0 );
- }
- else if( !strncmp( psz_parser, "controls-reset",
- strlen( "controls-reset" ) ) )
- {
- var_SetBool( p_obj, "v4l2-controls-reset", VLC_TRUE );
- psz_parser += strlen( "controls-reset" );
- }
-#if 0
- else if( !strncmp( psz_parser, "brightness=",
- strlen( "brightness=" ) ) )
- {
- var_SetInteger( p_obj, "brightness",
- strtol( psz_parser + strlen( "brightness=" ),
- &psz_parser, 0 ) );
- }
- else if( !strncmp( psz_parser, "contrast=",
- strlen( "contrast=" ) ) )
- {
- var_SetInteger( p_obj, "contrast",
- strtol( psz_parser + strlen( "contrast=" ),
- &psz_parser, 0 ) );
- }
- else if( !strncmp( psz_parser, "saturation=",
- strlen( "saturation=" ) ) )
- {
- var_SetInteger( p_obj, "saturation",
- strtol( psz_parser + strlen( "saturation=" ),
- &psz_parser, 0 ) );
- }
- else if( !strncmp( psz_parser, "hue=",
- strlen( "hue=" ) ) )
- {
- var_SetInteger( p_obj, "hue",
- strtol( psz_parser + strlen( "hue=" ),
- &psz_parser, 0 ) );
- }
- else if( !strncmp( psz_parser, "gamma=",
- strlen( "gamma=" ) ) )
- {
- var_SetInteger( p_obj, "gamma",
- strtol( psz_parser + strlen( "gamma=" ),
- &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 );
- }
- else if( !strncmp( psz_parser, "tuner=", strlen( "tuner=" ) ) )
- {
- p_sys->i_cur_tuner = strtol( psz_parser + strlen( "tuner=" ),
- &psz_parser, 0 );
- }
- else if( !strncmp( psz_parser, "tuner-frequency=", strlen( "tuner-frequency=" ) ) )
- {
- p_sys->i_frequency = strtol( psz_parser
- + strlen( "tuner-frequency=" ),
- &psz_parser, 0 );
- }
- else if( !strncmp( psz_parser, "tuner-audio-mode=", strlen( "tuner-audio-mode=" ) ) )
- {
- p_sys->i_audio_mode = strtol( psz_parser
- + strlen( "tuner-audio-mode=" ),
- &psz_parser, 0 );
- }
- else if( !strncmp( psz_parser, "set-ctrls=", strlen( "set-ctrls=" )) )
- {
- int i_len;
-
- psz_parser += strlen( "set-ctrls=" );
- if( strchr( psz_parser, ':' ) )
- {
- i_len = strchr( psz_parser, ':' ) - psz_parser;
- }
- else
- {
- i_len = strlen( psz_parser );
- }
-
- p_sys->psz_set_ctrls = strndup( psz_parser, i_len );
-
- psz_parser += i_len;
- }
- else
- {
- char *psz_unk = strchr( psz_parser, ':' );
- if (psz_unk)
- psz_unk = strndup( psz_parser, psz_unk - psz_parser );
- else
- psz_unk = strdup( psz_parser);
- msg_Warn( p_obj, "unknown option %s", psz_unk );
- free (psz_unk);
- }
-
- while( *psz_parser && *psz_parser != ':' )
- {
- psz_parser++;
- }
-
- if( *psz_parser == '\0' )
- {
- break;
- }
- }
- }
-
- /* Main device */
- if( *psz_dup )
+ int rawfd = vlc_open (path, O_RDWR);
+ if (rawfd == -1)
{
- p_sys->psz_device = strdup( psz_dup );
+ msg_Err (obj, "cannot open device '%s': %m", path);
+ return -1;
}
- if( psz_dup ) free( psz_dup );
-}
-
-/*****************************************************************************
- * Close: close device, free resources
- *****************************************************************************/
-static void AccessClose( vlc_object_t *p_this )
-{
- access_t *p_access = (access_t *)p_this;
- demux_sys_t *p_sys = (demux_sys_t *) p_access->p_sys;
-
- CommonClose( p_this, p_sys );
-}
-
-static void DemuxClose( vlc_object_t *p_this )
-{
- struct v4l2_buffer buf;
- enum v4l2_buf_type buf_type;
- unsigned int i;
-
- demux_t *p_demux = (demux_t *)p_this;
- demux_sys_t *p_sys = p_demux->p_sys;
- /* Stop video capture */
- if( p_sys->i_fd_video >= 0 )
+ int fd = v4l2_fd_open (rawfd, 0);
+ if (fd == -1)
{
- switch( p_sys->io )
- {
- case IO_METHOD_READ:
- /* Nothing to do */
- break;
-
- case IO_METHOD_MMAP:
- case IO_METHOD_USERPTR:
- /* Some drivers 'hang' internally if this is not done before streamoff */
- for( unsigned int i = 0; i < p_sys->i_nbuffers; i++ )
- {
- memset( &buf, 0, sizeof(buf) );
- 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 */
- }
-
- buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if( ioctl( p_sys->i_fd_video, VIDIOC_STREAMOFF, &buf_type ) < 0 ) {
- msg_Err( p_this, "VIDIOC_STREAMOFF failed" );
- }
-
- break;
- }
- }
-
- /* Free Video Buffers */
- if( p_sys->p_buffers ) {
- switch( p_sys->io )
- {
- case IO_METHOD_READ:
- free( p_sys->p_buffers[0].start );
- 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 ) )
- {
- msg_Err( p_this, "munmap failed" );
- }
- }
- break;
-
- case IO_METHOD_USERPTR:
- for( i = 0; i < p_sys->i_nbuffers; ++i )
- {
- free( p_sys->p_buffers[i].orig_userp );
- }
- break;
- }
- free( p_sys->p_buffers );
+ msg_Warn (obj, "cannot initialize user-space library: %m");
+ /* fallback to direct kernel mode anyway */
+ fd = rawfd;
}
- CommonClose( p_this, p_sys );
-}
-
-static void CommonClose( vlc_object_t *p_this, demux_sys_t *p_sys )
-{
- /* Close */
- if( p_sys->i_fd_video >= 0 ) close( p_sys->i_fd_video );
-#ifdef HAVE_ALSA
- if( p_sys->p_alsa_pcm )
+ /* Get device capabilites */
+ struct v4l2_capability cap;
+ if (v4l2_ioctl (fd, VIDIOC_QUERYCAP, &cap) < 0)
{
- snd_pcm_close( p_sys->p_alsa_pcm );
- p_sys->i_fd_audio = -1;
+ msg_Err (obj, "cannot get device capabilities: %m");
+ v4l2_close (fd);
+ return -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 );
- 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 );
- free( p_sys->p_codecs );
- free( p_sys->psz_requested_chroma );
- free( p_sys->psz_set_ctrls );
-
- free( p_sys );
-}
-
-/*****************************************************************************
- * AccessOpen: opens v4l2 device, access2 callback
- *****************************************************************************
- *
- * url: <video device>::::
- *
- *****************************************************************************/
-static int AccessOpen( vlc_object_t * p_this )
-{
- access_t *p_access = (access_t*) p_this;
- demux_sys_t * p_sys;
-
- /* 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;
+ msg_Dbg (obj, "device %s using driver %s (version %u.%u.%u) on %s",
+ cap.card, cap.driver, (cap.version >> 16) & 0xFF,
+ (cap.version >> 8) & 0xFF, cap.version & 0xFF, cap.bus_info);
- p_sys = calloc( 1, sizeof( demux_sys_t ) );
- p_access->p_sys = (access_sys_t *) p_sys;
- if( p_sys == NULL ) return VLC_ENOMEM;
-
- GetV4L2Params( p_sys, (vlc_object_t *) p_access );
-
- ParseMRL( p_sys, p_access->psz_path, (vlc_object_t *) p_access );
-
- if( FindMainDevice( p_this, p_sys, FIND_VIDEO,
- VLC_FALSE, !strncmp( p_access->psz_access, "v4l2", 4 ) ) != VLC_SUCCESS )
+ if (cap.capabilities & V4L2_CAP_DEVICE_CAPS)
{
- AccessClose( p_this );
- return VLC_EGENERIC;
+ msg_Dbg (obj, " with capabilities 0x%08"PRIX32" "
+ "(overall 0x%08"PRIX32")", cap.device_caps, cap.capabilities);
+ *caps = cap.device_caps;
}
-
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * DemuxControl:
- *****************************************************************************/
-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 )
+ else
{
- /* 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;
- return VLC_SUCCESS;
-
- case DEMUX_GET_PTS_DELAY:
- pi64 = (int64_t*)va_arg( args, int64_t * );
- *pi64 = (int64_t)p_sys->i_pts * 1000;
- return VLC_SUCCESS;
-
- case DEMUX_GET_TIME:
- pi64 = (int64_t*)va_arg( args, int64_t * );
- *pi64 = mdate();
- return VLC_SUCCESS;
-
- /* TODO implement others */
- default:
- return VLC_EGENERIC;
+ msg_Dbg (obj, " with unknown capabilities "
+ "(overall 0x%08"PRIX32")", cap.capabilities);
+ *caps = cap.capabilities;
}
-
- return VLC_EGENERIC;
+ return fd;
}
-/*****************************************************************************
- * AccessControl: access2 callback
- *****************************************************************************/
-static int AccessControl( access_t *p_access, int i_query, va_list args )
+v4l2_std_id var_InheritStandard (vlc_object_t *obj, const char *varname)
{
- 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;
- 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;
- break;
-
- /* */
- case ACCESS_SET_PAUSE_STATE:
- /* Nothing to do */
- break;
-
- case ACCESS_GET_TITLE_INFO:
- case ACCESS_SET_TITLE:
- case ACCESS_SET_SEEKPOINT:
- case ACCESS_SET_PRIVATE_ID_STATE:
- case ACCESS_GET_CONTENT_TYPE:
- case ACCESS_GET_META:
- return VLC_EGENERIC;
-
- default:
- msg_Warn( p_access, "Unimplemented query in control(%d).", i_query);
- return VLC_EGENERIC;
+ char *name = var_InheritString (obj, varname);
+ if (name == NULL)
+ return V4L2_STD_UNKNOWN;
- }
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * AccessRead: access2 callback
- ******************************************************************************/
-static ssize_t AccessRead( 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;
+ const size_t n = sizeof (standards_vlc) / sizeof (*standards_vlc);
- ufd.fd = p_sys->i_fd_video;
- ufd.events = POLLIN;
+ static_assert (sizeof (standards_vlc) / sizeof (*standards_vlc)
+ == sizeof (standards_v4l2) / sizeof (*standards_v4l2),
+ "Inconsistent standards tables");
+ static_assert (sizeof (standards_vlc) / sizeof (*standards_vlc)
+ == sizeof (standards_user) / sizeof (*standards_user),
+ "Inconsistent standards tables");
- if( p_access->info.b_eof )
- return 0;
+ for (size_t i = 0; i < n; i++)
+ if (strcasecmp (name, standards_vlc[i]) == 0)
+ {
+ free (name);
+ return standards_v4l2[i];
+ }
- do
+ /* Backward compatibility with old versions using V4L2 magic numbers */
+ char *end;
+ v4l2_std_id std = strtoull (name, &end, 0);
+ if (*end != '\0')
{
- if( p_access->b_die )
- return 0;
-
- ufd.revents = 0;
+ msg_Err (obj, "unknown video standard \"%s\"", name);
+ std = V4L2_STD_UNKNOWN;
}
- while( ( i_ret = poll( &ufd, 1, 500 ) ) == 0 );
-
- if( i_ret < 0 )
- {
- msg_Err( p_access, "Polling error (%m)." );
- return -1;
- }
-
- i_ret = read( p_sys->i_fd_video, p_buffer, i_len );
- if( i_ret == 0 )
- {
- p_access->info.b_eof = VLC_TRUE;
- }
- else if( i_ret > 0 )
- {
- p_access->info.i_pos += i_ret;
- }
-
- return i_ret;
-}
-
-/*****************************************************************************
- * Demux: Processes the audio or video frame
- *****************************************************************************/
-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 );
- }
-
- if( !p_block )
- {
- /* Sleep so we do not consume all the cpu, 10ms seems
- * like a good value (100fps) */
- msleep( 10 );
- return 1;
- }
-
- 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 )
-{
- demux_sys_t *p_sys = p_demux->p_sys;
-
- block_t *p_block = NULL;
- struct v4l2_buffer buf;
- ssize_t i_ret;
-
- if( p_sys->f_fps >= 0.1 && p_sys->i_video_pts > 0 )
- {
- 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;
- }
-
- /* 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 );
- if( i_ret == -1 )
- {
- switch( errno )
- {
- case EAGAIN:
- return 0;
- case EIO:
- /* Could ignore EIO, see spec. */
- /* fall through */
- default:
- msg_Err( p_demux, "Failed to read frame" );
- return 0;
- }
- }
-
- p_block = ProcessVideoFrame( p_demux, (uint8_t*)p_sys->p_buffers[0].start, i_ret );
- if( !p_block ) return 0;
-
- break;
-
- case IO_METHOD_MMAP:
- memset( &buf, 0, sizeof(buf) );
- buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- buf.memory = V4L2_MEMORY_MMAP;
-
- /* Wait for next frame */
- if (ioctl( p_sys->i_fd_video, VIDIOC_DQBUF, &buf ) < 0 )
- {
- switch( errno )
- {
- case EAGAIN:
- return 0;
- case EIO:
- /* Could ignore EIO, see spec. */
- /* fall through */
- default:
- msg_Err( p_demux, "Failed to wait (VIDIOC_DQBUF)" );
- return 0;
- }
- }
-
- if( buf.index >= p_sys->i_nbuffers ) {
- msg_Err( p_demux, "Failed capturing new frame as i>=nbuffers" );
- return 0;
- }
-
- p_block = ProcessVideoFrame( p_demux, p_sys->p_buffers[buf.index].start, buf.bytesused );
- if( !p_block ) return 0;
-
- /* Unlock */
- if( ioctl( p_sys->i_fd_video, VIDIOC_QBUF, &buf ) < 0 )
- {
- msg_Err (p_demux, "Failed to unlock (VIDIOC_QBUF)");
- return 0;
- }
-
- break;
-
- case IO_METHOD_USERPTR:
- memset( &buf, 0, sizeof(buf) );
- buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- buf.memory = V4L2_MEMORY_USERPTR;
-
- /* Wait for next frame */
- if (ioctl( p_sys->i_fd_video, VIDIOC_DQBUF, &buf ) < 0 )
- {
- switch( errno )
- {
- case EAGAIN:
- return 0;
- case EIO:
- /* Could ignore EIO, see spec. */
- /* fall through */
- default:
- msg_Err( p_demux, "Failed to wait (VIDIOC_DQBUF)" );
- return 0;
- }
- }
-
- /* Find frame? */
- unsigned int i;
- for( i = 0; i < p_sys->i_nbuffers; i++ )
- {
- if( buf.m.userptr == (unsigned long)p_sys->p_buffers[i].start &&
- buf.length == p_sys->p_buffers[i].length ) break;
- }
-
- if( i >= p_sys->i_nbuffers )
- {
- msg_Err( p_demux, "Failed capturing new frame as i>=nbuffers" );
- return 0;
- }
-
- p_block = ProcessVideoFrame( p_demux, (uint8_t*)buf.m.userptr, buf.bytesused );
- if( !p_block ) return 0;
-
- /* Unlock */
- if( ioctl( p_sys->i_fd_video, VIDIOC_QBUF, &buf ) < 0 )
- {
- msg_Err (p_demux, "Failed to unlock (VIDIOC_QBUF)");
- return 0;
- }
-
- break;
-
- }
-
- /* Timestamp */
- p_sys->i_video_pts = p_block->i_pts = p_block->i_dts = mdate();
-
- 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 )
-{
- block_t *p_block;
-
- if( !p_frame ) return 0;
-
- /* New block */
- if( !( p_block = block_New( p_demux, i_size ) ) )
- {
- msg_Warn( p_demux, "Cannot get new block" );
- return 0;
- }
-
- /* Copy frame */
- memcpy( p_block->p_buffer, p_frame, i_size );
-
- 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 )
-{
- demux_sys_t *p_sys = p_demux->p_sys;
-
- 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;
- }
-
- 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_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 )
-{
- demux_sys_t *p_sys = p_demux->p_sys;
- struct v4l2_requestbuffers req;
-
- memset( &req, 0, sizeof(req) );
- req.count = 4;
- req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- req.memory = V4L2_MEMORY_MMAP;
-
- if( ioctl( i_fd, VIDIOC_REQBUFS, &req ) < 0 )
- {
- msg_Err( p_demux, "device does not support mmap i/o" );
- goto open_failed;
- }
-
- if( req.count < 2 )
- {
- msg_Err( p_demux, "Insufficient buffer memory" );
- 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 )
- {
- struct v4l2_buffer buf;
-
- memset( &buf, 0, sizeof(buf) );
- buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- buf.memory = V4L2_MEMORY_MMAP;
- buf.index = p_sys->i_nbuffers;
-
- if( 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 );
-
- if( p_sys->p_buffers[p_sys->i_nbuffers].start == MAP_FAILED )
- {
- msg_Err( p_demux, "mmap failed (%m)" );
- goto open_failed;
- }
- }
-
- return VLC_SUCCESS;
-
-open_failed:
- return VLC_EGENERIC;
-
-}
-
-/*****************************************************************************
- * 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 )
-{
- demux_sys_t *p_sys = p_demux->p_sys;
- struct v4l2_requestbuffers req;
- unsigned int i_page_size;
-
- i_page_size = getpagesize();
- i_buffer_size = ( i_buffer_size + i_page_size - 1 ) & ~( i_page_size - 1);
-
- memset( &req, 0, sizeof(req) );
- req.count = 4;
- req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- req.memory = V4L2_MEMORY_USERPTR;
-
- if( ioctl( i_fd, VIDIOC_REQBUFS, &req ) < 0 )
- {
- msg_Err( p_demux, "device does not support user pointer i/o" );
- goto open_failed;
- }
-
- 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" );
- goto open_failed;
- }
- }
-
- return VLC_SUCCESS;
-
-open_failed:
- 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 )
-{
- 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 VLC_FALSE;
-}
-
-/*****************************************************************************
- * 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 )
-{
- int i_fd;
- struct v4l2_cropcap cropcap;
- struct v4l2_crop crop;
- struct v4l2_format fmt;
- unsigned int i_min;
- enum v4l2_buf_type buf_type;
- char *psz_device = p_sys->psz_vdev;
-
- if( ( i_fd = open( psz_device, O_RDWR ) ) < 0 )
- {
- msg_Err( p_obj, "cannot open device (%m)" );
- goto open_failed;
- }
-
- /* Tune the tuner */
- if( p_sys->i_frequency >= 0 )
- {
- if( p_sys->i_cur_tuner < 0 || p_sys->i_cur_tuner >= p_sys->i_tuner )
- {
- msg_Err( p_obj, "invalid tuner %d.", p_sys->i_cur_tuner );
- goto open_failed;
- }
- struct v4l2_frequency frequency;
- memset( &frequency, 0, sizeof( frequency ) );
- 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 )
- {
- msg_Err( p_obj, "cannot set tuner frequency (%m)" );
- goto open_failed;
- }
- msg_Dbg( p_obj, "Tuner frequency set" );
- }
-
- /* Set the tuner's audio mode */
- if( p_sys->i_audio_mode >= 0 )
- {
- if( p_sys->i_cur_tuner < 0 || p_sys->i_cur_tuner >= p_sys->i_tuner )
- {
- msg_Err( p_obj, "invalid tuner %d.", p_sys->i_cur_tuner );
- goto open_failed;
- }
- struct v4l2_tuner tuner;
- 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 )
- {
- msg_Err( p_obj, "cannot set tuner audio mode (%m)" );
- goto open_failed;
- }
- msg_Dbg( p_obj, "Tuner audio mode set" );
- }
-
- /* Select standard */
-
- if( p_sys->i_selected_standard_id != V4L2_STD_UNKNOWN )
- {
- if( 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" );
- }
-
- /* Select input */
-
- if( p_sys->i_selected_input >= p_sys->i_input )
- {
- msg_Warn( p_obj, "invalid input. Using the default one" );
- p_sys->i_selected_input = 0;
- }
-
- if( ioctl( i_fd, VIDIOC_S_INPUT, &p_sys->i_selected_input ) < 0 )
- {
- msg_Err( p_obj, "cannot set input (%m)" );
- goto open_failed;
- }
-
- /* Set audio input */
-
- if( p_sys->i_audio > 0 )
- {
- if( p_sys->i_selected_audio_input < 0
- || p_sys->i_selected_audio_input >= p_sys->i_audio )
- {
- msg_Warn( p_obj, "invalid audio input. Using the default one" );
- 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 )
- {
- msg_Err( p_obj, "cannot set audio input (%m)" );
- goto open_failed;
- }
- msg_Dbg( p_obj, "Audio input set to %d", p_sys->i_selected_audio_input );
- }
-
-
- /* TODO: Move the resolution stuff up here */
- /* if MPEG encoder card, no need to do anything else after this */
- ControlList( p_obj, 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" );
- goto open_failed;
- }
- 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" );
- goto open_failed;
- }
- break;
-
- default:
- msg_Err( p_demux, "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 )
- {
- crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- crop.c = cropcap.defrect; /* reset to default */
- if( ioctl( i_fd, VIDIOC_S_CROP, &crop ) < 0 )
- {
- switch( errno )
- {
- case EINVAL:
- /* Cropping not supported. */
- break;
- default:
- /* Errors ignored. */
- break;
- }
- }
- }
-
- /* Try and find default resolution if not specified */
- memset( &fmt, 0, sizeof(fmt) );
- fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- if( p_sys->i_width <= 0 || p_sys->i_height <= 0 )
- {
- if( ioctl( i_fd, VIDIOC_G_FMT, &fmt ) < 0 )
- {
- msg_Err( p_demux, "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;
-
- if( fmt.fmt.pix.field == V4L2_FIELD_ALTERNATE )
- {
- p_sys->i_height = p_sys->i_height * 2;
- }
- }
- else
- {
- msg_Dbg( p_demux, "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.field = V4L2_FIELD_INTERLACED;
-
- /* Test and set Chroma */
- fmt.fmt.pix.pixelformat = 0;
- if( p_sys->psz_requested_chroma && strlen( p_sys->psz_requested_chroma ) > 0 )
- {
- /* User specified chroma */
- if( strlen( p_sys->psz_requested_chroma ) >= 4 )
- {
- 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] );
- for( int i = 0; v4l2chroma_to_fourcc[i].i_v4l2 != 0; i++ )
- {
- if( v4l2chroma_to_fourcc[i].i_fourcc == i_requested_fourcc )
- {
- fmt.fmt.pix.pixelformat = v4l2chroma_to_fourcc[i].i_v4l2;
- break;
- }
- }
- }
- /* 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++ )
- {
- 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;
- }
- 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 (access2)" );
- goto open_failed;
- }
- }
-
- /* Reassign width, height and chroma incase driver override */
- p_sys->i_width = fmt.fmt.pix.width;
- p_sys->i_height = fmt.fmt.pix.height;
-
- /* 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;
- break;
- }
- }
-
- /* Buggy driver paranoia */
- i_min = fmt.fmt.pix.width * 2;
- if( fmt.fmt.pix.bytesperline < i_min )
- fmt.fmt.pix.bytesperline = i_min;
- i_min = fmt.fmt.pix.bytesperline * fmt.fmt.pix.height;
- if( fmt.fmt.pix.sizeimage < i_min )
- fmt.fmt.pix.sizeimage = i_min;
-
-#ifdef VIDIOC_ENUM_FRAMEINTERVALS
- /* This is new in Linux 2.6.19 */
- /* List supported frame rates */
- struct v4l2_frmivalenum frmival;
- frmival.index = 0;
- 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 )
- {
- 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:",
- psz_fourcc, frmival.width, frmival.height );
- switch( frmival.type )
- {
- case V4L2_FRMIVAL_TYPE_DISCRETE:
- do
- {
- msg_Dbg( p_demux, " supported frame interval: %d/%d",
- frmival.discrete.numerator,
- frmival.discrete.denominator );
- frmival.index++;
- } while( ioctl( i_fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival ) >= 0 );
- break;
- case V4L2_FRMIVAL_TYPE_STEPWISE:
- msg_Dbg( p_demux, " supported frame intervals: %d/%d to "
- "%d/%d using %d/%d increments",
- frmival.stepwise.min.numerator,
- frmival.stepwise.min.denominator,
- frmival.stepwise.max.numerator,
- frmival.stepwise.max.denominator,
- frmival.stepwise.step.numerator,
- frmival.stepwise.step.denominator );
- break;
- case V4L2_FRMIVAL_TYPE_CONTINUOUS:
- msg_Dbg( p_demux, " supported frame intervals: %d/%d to %d/%d",
- frmival.stepwise.min.numerator,
- frmival.stepwise.min.denominator,
- frmival.stepwise.max.numerator,
- frmival.stepwise.max.denominator );
- break;
- }
- }
-#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;
- break;
-
- case IO_METHOD_MMAP:
- if( InitMmap( p_demux, 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;
- 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' ) )
- {
- /* This is in BGR format */
- es_fmt.video.i_bmask = 0x00ff0000;
- es_fmt.video.i_gmask = 0x0000ff00;
- es_fmt.video.i_rmask = 0x000000ff;
- }
-
- 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 );
-
- /* Start Capture */
-
- switch( p_sys->io )
- {
- case IO_METHOD_READ:
- /* Nothing to do */
- break;
-
- case IO_METHOD_MMAP:
- for (unsigned int i = 0; i < p_sys->i_nbuffers; ++i)
- {
- struct v4l2_buffer buf;
-
- memset( &buf, 0, sizeof(buf) );
- buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- buf.memory = V4L2_MEMORY_MMAP;
- buf.index = i;
-
- if( ioctl( i_fd, VIDIOC_QBUF, &buf ) < 0 )
- {
- msg_Err( p_demux, "VIDIOC_QBUF failed" );
- goto open_failed;
- }
- }
-
- buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if( ioctl( i_fd, VIDIOC_STREAMON, &buf_type ) < 0 )
- {
- msg_Err( p_demux, "VIDIOC_STREAMON failed" );
- goto open_failed;
- }
-
- break;
-
- case IO_METHOD_USERPTR:
- for( unsigned int i = 0; i < p_sys->i_nbuffers; ++i )
- {
- struct v4l2_buffer buf;
-
- memset( &buf, 0, sizeof(buf) );
- buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- buf.memory = V4L2_MEMORY_USERPTR;
- buf.index = i;
- 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 )
- {
- msg_Err( p_demux, "VIDIOC_QBUF failed" );
- goto open_failed;
- }
- }
-
- buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- if( ioctl( i_fd, VIDIOC_STREAMON, &buf_type ) < 0 )
- {
- msg_Err( p_demux, "VIDIOC_STREAMON failed" );
- 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 );
- }
-
- 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 );
- 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 )
-{
- int i_index;
- int i_standard;
-
- int i_fd;
-
- if( ( i_fd = open( psz_device, O_RDWR ) ) < 0 )
- {
- msg_Err( p_obj, "cannot open video device (%m)" );
- goto open_failed;
- }
-
- /* Get device capabilites */
-
- if( ioctl( i_fd, VIDIOC_QUERYCAP, &p_sys->dev_cap ) < 0 )
- {
- msg_Err( p_obj, "cannot get video capabilities (%m)" );
- goto open_failed;
- }
-
- msg_Dbg( p_obj, "V4L2 device: %s using driver: %s (version: %u.%u.%u) on %s",
- p_sys->dev_cap.card,
- p_sys->dev_cap.driver,
- (p_sys->dev_cap.version >> 16) & 0xFF,
- (p_sys->dev_cap.version >> 8) & 0xFF,
- p_sys->dev_cap.version & 0xFF,
- p_sys->dev_cap.bus_info );
-
- msg_Dbg( p_obj, "the device has the capabilities: (%c) Video Capure, "
- "(%c) Audio, "
- "(%c) Tuner",
- ( 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':' ') );
-
- msg_Dbg( p_obj, "supported I/O methods are: (%c) Read/Write, "
- "(%c) Streaming, "
- "(%c) Asynchronous",
- ( p_sys->dev_cap.capabilities & V4L2_CAP_READWRITE ? 'X':' ' ),
- ( p_sys->dev_cap.capabilities & V4L2_CAP_STREAMING ? 'X':' ' ),
- ( p_sys->dev_cap.capabilities & V4L2_CAP_ASYNCIO ? 'X':' ' ) );
-
- /* 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 )
- {
- p_sys->i_input++;
- t_input.index = p_sys->i_input;
- }
-
- p_sys->p_inputs = calloc( 1, p_sys->i_input * sizeof( struct v4l2_input ) );
- if( !p_sys->p_inputs ) goto open_failed;
-
- for( i_index = 0; i_index < p_sys->i_input; i_index++ )
- {
- p_sys->p_inputs[i_index].index = i_index;
-
- if( ioctl( i_fd, VIDIOC_ENUMINPUT, &p_sys->p_inputs[i_index] ) )
- {
- msg_Err( p_obj, "cannot get video input characteristics (%m)" );
- goto open_failed;
- }
- msg_Dbg( p_obj, "video input %i (%s) has type: %s %c",
- i_index,
- p_sys->p_inputs[i_index].name,
- p_sys->p_inputs[i_index].type
- == V4L2_INPUT_TYPE_TUNER ?
- "Tuner adapter" :
- "External analog input",
- i_index == p_sys->i_selected_input ? '*' : ' ' );
- }
- }
-
- /* Probe video standards */
- if( p_sys->dev_cap.capabilities & V4L2_CAP_VIDEO_CAPTURE )
- {
- struct v4l2_standard t_standards;
- t_standards.index = 0;
- while( ioctl( i_fd, VIDIOC_ENUMSTD, &t_standards ) >=0 )
- {
- p_sys->i_standard++;
- t_standards.index = p_sys->i_standard;
- }
-
- p_sys->p_standards = calloc( 1, p_sys->i_standard * sizeof( struct v4l2_standard ) );
- if( !p_sys->p_standards ) goto open_failed;
-
- for( i_standard = 0; i_standard < p_sys->i_standard; i_standard++ )
- {
- p_sys->p_standards[i_standard].index = i_standard;
-
- if( 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 ? '*' : ' ' );
- }
- }
-
- /* initialize the structures for the ioctls */
- for( i_index = 0; i_index < 32; i_index++ )
- {
- p_sys->p_audios[i_index].index = i_index;
- }
-
- /* Probe audio inputs */
- 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 )
- {
- if( 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;
- }
-
- msg_Dbg( p_obj, "audio input %i (%s) is %s %s %c",
- p_sys->i_audio,
- p_sys->p_audios[p_sys->i_audio].name,
- p_sys->p_audios[p_sys->i_audio].capability &
- V4L2_AUDCAP_STEREO ?
- "Stereo" : "Mono",
- p_sys->p_audios[p_sys->i_audio].capability &
- V4L2_AUDCAP_AVL ?
- "(Automatic Volume Level supported)" : "",
- p_sys->i_audio == p_sys->i_selected_audio_input ? '*' : ' ' );
-
- p_sys->i_audio++;
- }
- }
-
- /* List tuner caps */
- if( p_sys->dev_cap.capabilities & V4L2_CAP_TUNER )
- {
- struct v4l2_tuner tuner;
- memset( &tuner, 0, sizeof(tuner) );
- while( ioctl( i_fd, VIDIOC_G_TUNER, &tuner ) >= 0 )
- {
- p_sys->i_tuner++;
- memset( &tuner, 0, sizeof(tuner) );
- tuner.index = p_sys->i_tuner;
- }
-
- p_sys->p_tuners = calloc( 1, p_sys->i_tuner * sizeof( struct v4l2_tuner ) );
- if( !p_sys->p_tuners ) goto open_failed;
-
- for( i_index = 0; i_index < p_sys->i_tuner; i_index++ )
- {
- p_sys->p_tuners[i_index].index = i_index;
-
- if( ioctl( i_fd, VIDIOC_G_TUNER, &p_sys->p_tuners[i_index] ) )
- {
- msg_Err( p_obj, "cannot get tuner characteristics (%m)" );
- goto open_failed;
- }
- msg_Dbg( p_obj, "tuner %i (%s) has type: %s, "
- "frequency range: %.1f %s -> %.1f %s",
- i_index,
- p_sys->p_tuners[i_index].name,
- p_sys->p_tuners[i_index].type
- == V4L2_TUNER_RADIO ?
- "Radio" : "Analog TV",
- p_sys->p_tuners[i_index].rangelow * 62.5,
- p_sys->p_tuners[i_index].capability &
- V4L2_TUNER_CAP_LOW ?
- "Hz" : "kHz",
- p_sys->p_tuners[i_index].rangehigh * 62.5,
- p_sys->p_tuners[i_index].capability &
- V4L2_TUNER_CAP_LOW ?
- "Hz" : "kHz" );
-
- struct v4l2_frequency frequency;
- memset( &frequency, 0, sizeof( frequency ) );
- if( ioctl( i_fd, VIDIOC_G_FREQUENCY, &frequency ) < 0 )
- {
- msg_Err( p_obj, "cannot get tuner frequency (%m)" );
- goto open_failed;
- }
- msg_Dbg( p_obj, "tuner %i (%s) frequency: %.1f %s",
- i_index,
- p_sys->p_tuners[i_index].name,
- frequency.frequency * 62.5,
- p_sys->p_tuners[i_index].capability &
- V4L2_TUNER_CAP_LOW ?
- "Hz" : "kHz" );
- }
- }
-
- /* Probe for available chromas */
- if( p_sys->dev_cap.capabilities & V4L2_CAP_VIDEO_CAPTURE )
- {
- struct v4l2_fmtdesc codec;
-
- i_index = 0;
- memset( &codec, 0, sizeof(codec) );
- codec.index = i_index;
- codec.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- while( ioctl( i_fd, VIDIOC_ENUM_FMT, &codec ) >= 0 )
- {
- i_index++;
- codec.index = i_index;
- }
-
- p_sys->i_codec = i_index;
-
- 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 )
- {
- msg_Err( p_obj, "cannot get codec description (%m)" );
- goto open_failed;
- }
-
- /* only print if vlc supports the format */
- char psz_fourcc_v4l2[5];
- 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;
- 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;
-
- 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]",
- psz_fourcc,
- p_sys->p_codecs[i_index].description,
- psz_fourcc_v4l2 );
-
-#ifdef VIDIOC_ENUM_FRAMESIZES
- /* This is new in Linux 2.6.19 */
- /* List valid frame sizes for this format */
- struct v4l2_frmsizeenum frmsize;
- frmsize.index = 0;
- frmsize.pixel_format = p_sys->p_codecs[i_index].pixelformat;
- if( ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize ) < 0 )
- {
- /* Not all devices support this ioctl */
- msg_Warn( p_obj, "Unable to query for frame sizes" );
- }
- else
- {
- switch( frmsize.type )
- {
- case V4L2_FRMSIZE_TYPE_DISCRETE:
- do
- {
- msg_Dbg( p_obj,
- " device supports size %dx%d",
- frmsize.discrete.width, frmsize.discrete.height );
- frmsize.index++;
- } while( ioctl( i_fd, VIDIOC_ENUM_FRAMESIZES, &frmsize ) >= 0 );
- break;
- case V4L2_FRMSIZE_TYPE_STEPWISE:
- msg_Dbg( p_obj,
- " device supports sizes %dx%d to %dx%d using %dx%d increments",
- frmsize.stepwise.min_width, frmsize.stepwise.min_height,
- frmsize.stepwise.max_width, frmsize.stepwise.max_height,
- frmsize.stepwise.step_width, frmsize.stepwise.step_height );
- break;
- case V4L2_FRMSIZE_TYPE_CONTINUOUS:
- msg_Dbg( p_obj,
- " device supports all sizes %dx%d to %dx%d",
- frmsize.stepwise.min_width, frmsize.stepwise.min_height,
- frmsize.stepwise.max_width, frmsize.stepwise.max_height );
- break;
- }
- }
-#endif
- }
- }
- if( !b_codec_supported )
- {
- msg_Dbg( p_obj,
- "device codec %4s (%s) not supported as access_demux",
- 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;
-
-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;
- }
-
- p_sys->i_audio_method = 0;
- return VLC_FALSE;
-}
-
-static void name2var( unsigned char *name )
-{
- for( ; *name; name++ )
- *name = (*name == ' ') ? '_' : tolower( *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,
- struct v4l2_queryctrl queryctrl,
- vlc_bool_t b_reset, vlc_bool_t b_demux )
-{
- struct v4l2_querymenu querymenu;
- unsigned int i_mid;
-
- int i;
- int i_val;
-
- char *psz_name;
- vlc_value_t val, val2;
-
- if( queryctrl.flags & V4L2_CTRL_FLAG_GRABBED )
- msg_Dbg( p_obj, " control is busy" );
- if( queryctrl.flags & V4L2_CTRL_FLAG_READ_ONLY )
- msg_Dbg( p_obj, " control is read-only" );
-
- for( i = 0; controls[i].psz_name != NULL; i++ )
- if( controls[i].i_cid == queryctrl.id ) break;
-
- if( controls[i].psz_name )
- {
- psz_name = strdup( controls[i].psz_name );
- char psz_cfg_name[40];
- sprintf( psz_cfg_name, CFG_PREFIX "%s", psz_name );
- i_val = var_CreateGetInteger( p_obj, psz_cfg_name );
- var_Destroy( p_obj, psz_cfg_name );
- }
- else
- {
- psz_name = strdup( (const char *)queryctrl.name );
- name2var( (unsigned char *)psz_name );
- i_val = -1;
- }
-
- switch( queryctrl.type )
- {
- case V4L2_CTRL_TYPE_INTEGER:
- msg_Dbg( p_obj, " integer control" );
- msg_Dbg( p_obj,
- " valid values: %d to %d by steps of %d",
- queryctrl.minimum, queryctrl.maximum,
- queryctrl.step );
-
- var_Create( p_obj, psz_name,
- VLC_VAR_INTEGER | VLC_VAR_HASMIN | VLC_VAR_HASMAX
- | VLC_VAR_HASSTEP | VLC_VAR_ISCOMMAND );
- val.i_int = queryctrl.minimum;
- var_Change( p_obj, psz_name, VLC_VAR_SETMIN, &val, NULL );
- val.i_int = queryctrl.maximum;
- var_Change( p_obj, psz_name, VLC_VAR_SETMAX, &val, NULL );
- val.i_int = queryctrl.step;
- var_Change( p_obj, psz_name, VLC_VAR_SETSTEP, &val, NULL );
- break;
- case V4L2_CTRL_TYPE_BOOLEAN:
- msg_Dbg( p_obj, " boolean control" );
- var_Create( p_obj, psz_name,
- VLC_VAR_BOOL | VLC_VAR_ISCOMMAND );
- break;
- case V4L2_CTRL_TYPE_MENU:
- msg_Dbg( p_obj, " menu control" );
- var_Create( p_obj, psz_name,
- VLC_VAR_INTEGER | VLC_VAR_HASCHOICE
- | VLC_VAR_ISCOMMAND );
- memset( &querymenu, 0, sizeof( querymenu ) );
- for( i_mid = queryctrl.minimum;
- i_mid <= (unsigned)queryctrl.maximum;
- i_mid++ )
- {
- querymenu.index = i_mid;
- querymenu.id = queryctrl.id;
- if( ioctl( i_fd, VIDIOC_QUERYMENU, &querymenu ) >= 0 )
- {
- msg_Dbg( p_obj, " %d: %s",
- querymenu.index, querymenu.name );
- val.i_int = querymenu.index;
- val2.psz_string = (char *)querymenu.name;
- var_Change( p_obj, psz_name,
- VLC_VAR_ADDCHOICE, &val, &val2 );
- }
- }
- break;
- case V4L2_CTRL_TYPE_BUTTON:
- msg_Dbg( p_obj, " button control" );
- var_Create( p_obj, psz_name,
- VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
- break;
- case V4L2_CTRL_TYPE_CTRL_CLASS:
- msg_Dbg( p_obj, " control class" );
- var_Create( p_obj, psz_name, VLC_VAR_VOID );
- break;
- default:
- msg_Dbg( p_obj, " unknown control type (FIXME)" );
- /* FIXME */
- break;
- }
-
- switch( queryctrl.type )
- {
- case V4L2_CTRL_TYPE_INTEGER:
- case V4L2_CTRL_TYPE_BOOLEAN:
- case V4L2_CTRL_TYPE_MENU:
- {
- struct v4l2_control control;
- msg_Dbg( p_obj, " default value: %d",
- queryctrl.default_value );
- memset( &control, 0, sizeof( control ) );
- control.id = queryctrl.id;
- if( ioctl( i_fd, VIDIOC_G_CTRL, &control ) >= 0 )
- {
- msg_Dbg( p_obj, " current value: %d", control.value );
- }
- if( i_val == -1 )
- {
- i_val = 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 );
- }
- }
- else
- {
- Control( p_obj, i_fd, psz_name,
- queryctrl.id, i_val );
- }
- }
- break;
- default:
- break;
- }
-
- val.psz_string = (char *)queryctrl.name;
- var_Change( p_obj, psz_name, VLC_VAR_SETTEXT, &val, NULL );
- val.i_int = queryctrl.id;
- val2.psz_string = (char *)psz_name;
- var_Change( p_obj, "allcontrols", VLC_VAR_ADDCHOICE, &val, &val2 );
- /* bad things happen changing MPEG mid-stream
- * so don't add to Ext Settings GUI */
- if( V4L2_CTRL_ID2CLASS( queryctrl.id ) != V4L2_CTRL_CLASS_MPEG )
- var_Change( p_obj, "controls", VLC_VAR_ADDCHOICE, &val, &val2 );
-
- switch( var_Type( p_obj, psz_name ) & VLC_VAR_TYPE )
- {
- case VLC_VAR_BOOL:
- var_SetBool( p_obj, psz_name, i_val );
- break;
- case VLC_VAR_INTEGER:
- var_SetInteger( p_obj, psz_name, i_val );
- break;
- case VLC_VAR_VOID:
- break;
- default:
- msg_Warn( p_obj, "FIXME: %s %s %d", __FILE__, __func__,
- __LINE__ );
- break;
- }
-
- if( b_demux )
- var_AddCallback( p_obj, psz_name,
- DemuxControlCallback, (void*)queryctrl.id );
- else
- var_AddCallback( p_obj, psz_name,
- AccessControlCallback, (void*)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 )
-{
- struct v4l2_queryctrl queryctrl;
- int i_cid;
-
- memset( &queryctrl, 0, sizeof( queryctrl ) );
-
- /* A list of available controls (aka the variable name) will be
- * stored as choices in the "allcontrols" variable. We'll thus be able
- * to use those to create an appropriate interface
- * A list of available controls that can be changed mid-stream will
- * be stored in the "controls" variable */
- var_Create( p_obj, "controls", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
- var_Create( p_obj, "allcontrols", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
-
- var_Create( p_obj, "controls-update", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
-
- /* Add a control to reset all controls to their default values */
- vlc_value_t val, val2;
- var_Create( p_obj, "controls-reset", VLC_VAR_VOID | VLC_VAR_ISCOMMAND );
- val.psz_string = _( "Reset controls to default" );
- var_Change( p_obj, "controls-reset", VLC_VAR_SETTEXT, &val, NULL );
- val.i_int = -1;
- val2.psz_string = (char *)"controls-reset";
- var_Change( p_obj, "controls", VLC_VAR_ADDCHOICE, &val, &val2 );
- if (b_demux)
- var_AddCallback( p_obj, "controls-reset", DemuxControlResetCallback, NULL );
- else
- var_AddCallback( p_obj, "controls-reset", AccessControlResetCallback, NULL );
-
- queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
- if( 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 )
- {
- if( queryctrl.type == V4L2_CTRL_TYPE_CTRL_CLASS )
- {
- msg_Dbg( p_obj, "%s", queryctrl.name );
- queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
- continue;
- }
- switch( V4L2_CTRL_ID2CLASS( queryctrl.id ) )
- {
- case V4L2_CTRL_CLASS_USER:
- msg_Dbg( p_obj, "Available control: %s (%x)",
- queryctrl.name, queryctrl.id );
- break;
- case V4L2_CTRL_CLASS_MPEG:
- name2var( queryctrl.name );
- msg_Dbg( p_obj, "Available MPEG control: %s (%x)",
- queryctrl.name, queryctrl.id );
- break;
- default:
- msg_Dbg( p_obj, "Available private control: %s (%x)",
- queryctrl.name, queryctrl.id );
- break;
- }
- ControlListPrint( p_obj, i_fd, queryctrl, b_reset, b_demux );
- queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
- }
- }
- else
- {
- msg_Dbg( p_obj, "Extended control API not supported by v4l2 driver" );
-
- /* List public controls */
- for( i_cid = V4L2_CID_BASE;
- i_cid < V4L2_CID_LASTP1;
- i_cid ++ )
- {
- queryctrl.id = i_cid;
- if( 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 );
- }
- }
-
- /* List private controls */
- for( i_cid = V4L2_CID_PRIVATE_BASE;
- ;
- i_cid ++ )
- {
- queryctrl.id = i_cid;
- if( 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 );
- }
- else
- break;
- }
- }
-
- return VLC_SUCCESS;
-}
-
-static void SetAvailControlsByString( vlc_object_t *p_obj, demux_sys_t *p_sys,
- int i_fd )
-{
- char *psz_parser = p_sys->psz_set_ctrls;
- vlc_value_t val, text, name;
-
- if( psz_parser == NULL )
- return;
-
- if( *psz_parser == '{' )
- psz_parser++;
-
- int i_ret = var_Change( p_obj, "allcontrols", VLC_VAR_GETCHOICES,
- &val, &text );
- if( i_ret < 0 )
- {
- msg_Err( p_obj, "Oops, can't find 'allcontrols' variable." );
- return;
- }
-
- while( *psz_parser && *psz_parser != '}' )
- {
- char *psz_delim, *psz_assign;
-
- while( *psz_parser == ',' || *psz_parser == ' ' )
- psz_parser++;
-
- psz_delim = strchr( psz_parser, ',' );
- if( psz_delim == NULL )
- psz_delim = strchr( psz_parser, '}' );
- if( psz_delim == NULL )
- psz_delim = psz_parser + strlen( psz_parser );
-
- psz_assign = memchr( psz_parser, '=', psz_delim - psz_parser );
- if( psz_assign == NULL )
- {
- char *psz_name = strndup( psz_parser, psz_delim - psz_parser );
- msg_Err( p_obj, "%s missing '='", psz_name );
- free( psz_name );
- psz_parser = psz_delim + 1;
- continue;
- }
-
- for( int i = 0;
- i < val.p_list->i_count ;//&& psz_parser < psz_assign;
- i++ )
- {
- const char *psz_var = text.p_list->p_values[i].psz_string;
- int i_cid = val.p_list->p_values[i].i_int;
- var_Change( p_obj, psz_var, VLC_VAR_GETTEXT, &name, NULL );
- const char *psz_name = name.psz_string;
-
- int i_availstrlen = strlen( psz_name );
- int i_parsestrlen = psz_assign - psz_parser;
- int i_maxstrlen = __MAX( i_availstrlen, i_parsestrlen);
-
- if( !strncasecmp( psz_name, psz_parser, i_maxstrlen ) )
- {
- Control( p_obj, i_fd, psz_name, i_cid,
- strtol( ++psz_assign, &psz_parser, 0) );
- }
- }
-
- if( psz_parser < psz_assign )
- {
- char *psz_name = strndup( psz_parser, psz_assign - psz_parser );
- msg_Err( p_obj, "Control %s not available", psz_name );
- free( psz_name );
- psz_parser = ( *psz_delim ) ? ( psz_delim + 1 ) : psz_delim;
- }
- }
-}
-
-/*****************************************************************************
- * Reset all user-class v4l2 controls to their default value
- *****************************************************************************/
-static int ControlReset( vlc_object_t *p_obj, 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 )
- {
- /* Extended control API supported */
- queryctrl.id = V4L2_CTRL_FLAG_NEXT_CTRL;
- while( ioctl( i_fd, VIDIOC_QUERYCTRL, &queryctrl ) >= 0 )
- {
- if( queryctrl.type == V4L2_CTRL_TYPE_CTRL_CLASS
- || V4L2_CTRL_ID2CLASS( queryctrl.id ) == V4L2_CTRL_CLASS_MPEG )
- {
- queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
- continue;
- }
- struct v4l2_control control;
- memset( &control, 0, sizeof( control ) );
- control.id = queryctrl.id;
- if( 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,
- queryctrl.id, queryctrl.default_value );
- }
- queryctrl.id |= V4L2_CTRL_FLAG_NEXT_CTRL;
- }
- }
- else
- {
-
- /* public controls */
- for( i_cid = V4L2_CID_BASE;
- i_cid < V4L2_CID_LASTP1;
- i_cid ++ )
- {
- queryctrl.id = i_cid;
- if( 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
- && 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,
- queryctrl.id, queryctrl.default_value );
- }
- }
- }
-
- /* private controls */
- for( i_cid = V4L2_CID_PRIVATE_BASE;
- ;
- i_cid ++ )
- {
- queryctrl.id = i_cid;
- if( 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
- && queryctrl.default_value != control.value )
- {
- name2var( queryctrl.name );
- Control( p_obj, i_fd, (const char *)queryctrl.name,
- queryctrl.id, queryctrl.default_value );
- }
- }
- else
- break;
- }
- }
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * Issue user-class v4l2 controls
- *****************************************************************************/
-static int Control( vlc_object_t *p_obj, int i_fd,
- const char *psz_name, int i_cid, int i_value )
-{
- struct v4l2_queryctrl queryctrl;
- struct v4l2_control control;
- struct v4l2_ext_control ext_control;
- struct v4l2_ext_controls ext_controls;
-
- if( i_value == -1 )
- return VLC_SUCCESS;
-
- memset( &queryctrl, 0, sizeof( queryctrl ) );
-
- queryctrl.id = i_cid;
-
- if( 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 );
- return VLC_EGENERIC;
- }
-
- memset( &control, 0, sizeof( control ) );
- memset( &ext_control, 0, sizeof( ext_control ) );
- memset( &ext_controls, 0, sizeof( ext_controls ) );
- control.id = i_cid;
- ext_control.id = i_cid;
- ext_controls.ctrl_class = V4L2_CTRL_ID2CLASS( i_cid );
- ext_controls.count = 1;
- ext_controls.controls = &ext_control;
-
- int i_ret = -1;
-
- if( i_value >= 0 )
- {
- ext_control.value = i_value;
- if( ioctl( i_fd, VIDIOC_S_EXT_CTRLS, &ext_controls ) < 0 )
- {
- control.value = i_value;
- if( 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 );
- }
- else
- {
- i_ret = ioctl( i_fd, VIDIOC_G_EXT_CTRLS, &ext_controls );
- control.value = ext_control.value;
- }
- }
-
- if( i_ret >= 0 )
- {
- vlc_value_t val;
- msg_Dbg( p_obj, "video %s: %d", psz_name, control.value );
- switch( var_Type( p_obj, psz_name ) & VLC_VAR_TYPE )
- {
- 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" );
- 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" );
- break;
- }
- }
- return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * On the fly change settings callback
- *****************************************************************************/
-static int DemuxControlCallback( vlc_object_t *p_this,
- const char *psz_var, vlc_value_t oldval, vlc_value_t newval,
- void *p_data )
-{
- 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_fd = p_sys->i_fd_video;
-
- if( i_fd < 0 )
- return VLC_EGENERIC;
-
- Control( p_this, 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 )
-{
- 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;
-
- if( i_fd < 0 )
- return VLC_EGENERIC;
-
- ControlReset( p_this, i_fd );
-
- return VLC_EGENERIC;
-}
-
-static int AccessControlCallback( vlc_object_t *p_this,
- const char *psz_var, vlc_value_t oldval, vlc_value_t 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_cid = (int)p_data;
-
- int i_fd = p_sys->i_fd_video;
-
- if( i_fd < 0 )
- return VLC_EGENERIC;
-
- Control( p_this, 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 )
-{
- 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;
-
- if( i_fd < 0 )
- return VLC_EGENERIC;
-
- ControlReset( p_this, i_fd );
-
- return VLC_EGENERIC;
+ free (name);
+ return std;
}
projects / vlc / blobdiff