/***************************************************************************** * pvr.c ***************************************************************************** * Copyright (C) 2001, 2002 VideoLAN * $Id: pvr.c 11376 2005-06-10 11:01:40Z fkuehne $ * * Authors: Eric Petit <titer@videolan.org> * * 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 * (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. * * 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., 59 Temple Place - Suite 330, Boston, MA  02111, USA. *****************************************************************************//***************************************************************************** * Preamble *****************************************************************************/#include <vlc/vlc.h>#include <vlc/input.h>#include <stdlib.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <unistd.h>#include <errno.h>#include <linux/types.h>#include <sys/ioctl.h>#include "videodev2.h"/***************************************************************************** * Module descriptor *****************************************************************************/static int  Open ( vlc_object_t * );static void Close( vlc_object_t * );#define CACHING_TEXT N_("Caching value in ms")#define CACHING_LONGTEXT N_( \    "Allows you to modify the default caching value for pvr streams. This " \    "value should be set in millisecond units." )#define DEVICE_TEXT N_( "Device" )#define DEVICE_LONGTEXT N_( "PVR video device" )#define NORM_TEXT N_( "Norm" )#define NORM_LONGTEXT N_( "Defines the norm of the stream " \    "(Automatic, SECAM, PAL, or NTSC)" )#define WIDTH_TEXT N_( "Width" )#define WIDTH_LONGTEXT N_( "Width of the stream to capture " \    "(-1 for autodetect)" )#define HEIGHT_TEXT N_( "Height" )#define HEIGHT_LONGTEXT N_( "Height of the stream to capture " \    "(-1 for autodetect)" )#define FREQUENCY_TEXT N_( "Frequency" )#define FREQUENCY_LONGTEXT N_( "Frequency to capture (in kHz), if applicable" )#define FRAMERATE_TEXT N_( "Framerate" )#define FRAMERATE_LONGTEXT N_( "Framerate to capture, if applicable " \    "(-1 for autodetect)" )#define KEYINT_TEXT N_( "Key interval" )#define KEYINT_LONGTEXT N_( "Interval between keyframes (-1 for autodetect)" )#define BFRAMES_TEXT N_( "B Frames" )#define BFRAMES_LONGTEXT N_("If this option is set, B-Frames will be used. " \    "Use this option to set the number of B-Frames.")#define BITRATE_TEXT N_( "Bitrate" )#define BITRATE_LONGTEXT N_( "Bitrate to use (-1 for default)" )#define BITRATE_PEAK_TEXT N_( "Bitrate peak" )#define BITRATE_PEAK_LONGTEXT N_( "Peak bitrate in VBR mode" )#define BITRATE_MODE_TEXT N_( "Bitrate mode (vbr or cbr)" )#define BITRATE_MODE_LONGTEXT N_( "Bitrate mode to use" )#define BITMASK_TEXT N_( "Audio bitmask" )#define BITMASK_LONGTEXT N_("This option allows setting of bitmask that will "\    "get used by the audio part of the card." )#define CHAN_TEXT N_( "Channel" )#define CHAN_LONGTEXT N_( "Channel of the card to use (Usually, 0 = tuner, " \    "1 = composite, 2 = svideo)" )#define CACHING_TEXT N_("Caching value in ms")#define CACHING_LONGTEXT N_( \    "Allows you to modify the default caching value for pvr streams. This " \    "value should be set in millisecond units." )static int i_norm_list[] =    { V4L2_STD_UNKNOWN, V4L2_STD_SECAM, V4L2_STD_PAL, V4L2_STD_NTSC };static char *psz_norm_list_text[] =    { N_("Automatic"), N_("SECAM"), N_("PAL"),  N_("NTSC") };static int i_bitrates[] = { 0, 1 };static char *psz_bitrates_list_text[] = { N_("vbr"), N_("cbr") };vlc_module_begin();    set_shortname( _("PVR") );    set_description( _("MPEG Encoding cards input (with ivtv drivers)") );    set_category( CAT_INPUT );    set_subcategory( SUBCAT_INPUT_ACCESS );    set_capability( "access2", 0 );    add_shortcut( "pvr" );    add_integer( "pvr-caching", DEFAULT_PTS_DELAY / 1000, NULL, CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );    add_string( "pvr-device", "/dev/video0", NULL, DEVICE_TEXT,                 DEVICE_LONGTEXT, VLC_FALSE );    add_integer( "pvr-norm", V4L2_STD_UNKNOWN , NULL, NORM_TEXT,                 NORM_LONGTEXT, VLC_FALSE );       change_integer_list( i_norm_list, psz_norm_list_text, 0 );    add_integer( "pvr-width", -1, NULL, WIDTH_TEXT, WIDTH_LONGTEXT, VLC_TRUE );    add_integer( "pvr-height", -1, NULL, HEIGHT_TEXT, HEIGHT_LONGTEXT,                 VLC_TRUE );    add_integer( "pvr-frequency", -1, NULL, FREQUENCY_TEXT, FREQUENCY_LONGTEXT,                 VLC_FALSE );    add_integer( "pvr-framerate", -1, NULL, FRAMERATE_TEXT, FRAMERATE_LONGTEXT,                 VLC_TRUE );    add_integer( "pvr-keyint", -1, NULL, KEYINT_TEXT, KEYINT_LONGTEXT,                 VLC_TRUE );    add_integer( "pvr-bframes", -1, NULL, FRAMERATE_TEXT, FRAMERATE_LONGTEXT,                 VLC_TRUE );    add_integer( "pvr-bitrate", -1, NULL, BITRATE_TEXT, BITRATE_LONGTEXT,                 VLC_FALSE );    add_integer( "pvr-bitrate-peak", -1, NULL, BITRATE_PEAK_TEXT,                 BITRATE_PEAK_LONGTEXT, VLC_TRUE );    add_integer( "pvr-bitrate-mode", -1, NULL, BITRATE_MODE_TEXT,                 BITRATE_MODE_LONGTEXT, VLC_TRUE );        change_integer_list( i_bitrates, psz_bitrates_list_text, 0 );    add_integer( "pvr-audio-bitmask", -1, NULL, BITMASK_TEXT,                 BITMASK_LONGTEXT, VLC_TRUE );    add_integer( "pvr-channel", -1, NULL, CHAN_TEXT, CHAN_LONGTEXT, VLC_TRUE );    add_integer( "pvr-caching", DEFAULT_PTS_DELAY / 1000, NULL,                 CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );    set_callbacks( Open, Close );vlc_module_end();/***************************************************************************** * Prototypes *****************************************************************************/static int Read   ( access_t *, uint8_t *, int );static int Control( access_t *, int, va_list );/* ivtv specific ioctls */#define IVTV_IOC_G_CODEC    0xFFEE7703#define IVTV_IOC_S_CODEC    0xFFEE7704/* for use with IVTV_IOC_G_CODEC and IVTV_IOC_S_CODEC */struct ivtv_ioctl_codec {        uint32_t aspect;        uint32_t audio_bitmask;        uint32_t bframes;        uint32_t bitrate_mode;        uint32_t bitrate;        uint32_t bitrate_peak;        uint32_t dnr_mode;        uint32_t dnr_spatial;        uint32_t dnr_temporal;        uint32_t dnr_type;        uint32_t framerate;        uint32_t framespergop;        uint32_t gop_closure;        uint32_t pulldown;        uint32_t stream_type;};struct access_sys_t{    /* file descriptor */    int i_fd;    /* options */    int i_standard;    int i_width;    int i_height;    int i_frequency;    int i_framerate;    int i_keyint;    int i_bframes;    int i_bitrate;    int i_bitrate_peak;    int i_bitrate_mode;    int i_audio_bitmask;    int i_input;};/***************************************************************************** * Open: open the device *****************************************************************************/static int Open( vlc_object_t * p_this ){    access_t *p_access = (access_t*) p_this;    access_sys_t * p_sys;    char * psz_tofree, * psz_parser, * psz_device;    vlc_value_t val;    struct v4l2_format vfmt;    struct v4l2_frequency vf;    struct ivtv_ioctl_codec codec;    //psz_device = calloc( strlen( "/dev/videox" ) + 1, 1 );    p_access->pf_read = Read;    p_access->pf_block = NULL;    p_access->pf_seek = NULL;    p_access->pf_control = Control;    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;    /* create private access data */    p_sys = calloc( sizeof( access_sys_t ), 1 );    p_access->p_sys = p_sys;    /* defaults values */    var_Create( p_access, "pvr-caching", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );    var_Create( p_access, "pvr-device", VLC_VAR_STRING | VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-device" , &val);    psz_device = val.psz_string;    var_Create( p_access, "pvr-norm", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-norm" , &val);    p_sys->i_standard = val.i_int;    var_Create( p_access, "pvr-width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-width" , &val);    p_sys->i_width = val.i_int;    var_Create( p_access, "pvr-height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-height" , &val);    p_sys->i_height = val.i_int;    var_Create( p_access, "pvr-frequency", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-frequency" , &val);    p_sys->i_frequency = val.i_int;    var_Create( p_access, "pvr-framerate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-framerate" , &val);    p_sys->i_framerate = val.i_int;    var_Create( p_access, "pvr-keyint", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-keyint" , &val);    p_sys->i_keyint = val.i_int;    var_Create( p_access, "pvr-bframes", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-bframes" , &val);    p_sys->i_bframes = val.b_bool;    var_Create( p_access, "pvr-bitrate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-bitrate" , &val);    p_sys->i_bitrate = val.i_int;    var_Create( p_access, "pvr-bitrate-peak", VLC_VAR_INTEGER |                                              VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-bitrate-peak" , &val);    p_sys->i_bitrate_peak = val.i_int;    var_Create( p_access, "pvr-bitrate-mode", VLC_VAR_INTEGER |                                              VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-bitrate-mode" , &val);    p_sys->i_bitrate_mode = val.i_int;    var_Create( p_access, "pvr-audio-bitmask", VLC_VAR_INTEGER |                                              VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-audio-bitmask" , &val);    p_sys->i_audio_bitmask = val.i_int;    var_Create( p_access, "pvr-channel", VLC_VAR_INTEGER |                                              VLC_VAR_DOINHERIT );    var_Get( p_access, "pvr-channel" , &val);    p_sys->i_input = val.i_int;    /* parse command line options */    psz_tofree = strdup( p_access->psz_path );    psz_parser = psz_tofree;    if( *psz_parser )    {        for( ;; )        {            if ( !strncmp( psz_parser, "norm=", strlen( "norm=" ) ) )            {                char *psz_parser_init;                psz_parser += strlen( "norm=" );                psz_parser_init = psz_parser;                while ( *psz_parser != ':' && *psz_parser != ','                                                    && *psz_parser != '\0' )                {                    psz_parser++;                }                if ( !strncmp( psz_parser_init, "secam" ,                               psz_parser - psz_parser_init ) )                {                    p_sys->i_standard = V4L2_STD_SECAM;                }                else if ( !strncmp( psz_parser_init, "pal" ,                                    psz_parser - psz_parser_init ) )                {                    p_sys->i_standard = V4L2_STD_PAL;                }                else if ( !strncmp( psz_parser_init, "ntsc" ,                                    psz_parser - psz_parser_init ) )                {                    p_sys->i_standard = V4L2_STD_NTSC;                }                else                {                    p_sys->i_standard = strtol( psz_parser_init ,                                                &psz_parser, 0 );                }            }            else if( !strncmp( psz_parser, "channel=",                               strlen( "channel=" ) ) )            {                p_sys->i_input =                  strtol( psz_parser + strlen( "channel=" ),                            &psz_parser, 0 );            }            else if( !strncmp( psz_parser, "device=", strlen( "device=" ) ) )            {                psz_device = calloc( strlen( "/dev/videox" ) + 1, 1 );                sprintf( psz_device, "/dev/video%ld",                            strtol( psz_parser + strlen( "device=" ),                            &psz_parser, 0 ) );            }            else if( !strncmp( psz_parser, "frequency=",                               strlen( "frequency=" ) ) )            {                p_sys->i_frequency =                  strtol( psz_parser + strlen( "frequency=" ),                            &psz_parser, 0 );            }            else if( !strncmp( psz_parser, "framerate=",                               strlen( "framerate=" ) ) )            {                p_sys->i_framerate =                    strtol( psz_parser + strlen( "framerate=" ),                            &psz_parser, 0 );            }            else if( !strncmp( psz_parser, "keyint=",                               strlen( "keyint=" ) ) )            {                p_sys->i_keyint =                    strtol( psz_parser + strlen( "keyint=" ),                            &psz_parser, 0 );            }            else if( !strncmp( psz_parser, "bframes=",                               strlen( "bframes=" ) ) )            {                p_sys->i_bframes =                    strtol( psz_parser + strlen( "bframes=" ),                            &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, "audio=",                               strlen( "audio=" ) ) )