2006-08-23 22:20:58 +02:00
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/*****************************************************************************
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* v4l2.c : Video4Linux2 input module for vlc
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*****************************************************************************
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2007-10-06 17:34:52 +02:00
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* Copyright (C) 2002-2007 the VideoLAN team
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* $Id$
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2006-08-23 22:20:58 +02:00
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*
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* Author: Benjamin Pracht <bigben at videolan dot org>
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2007-10-06 13:26:34 +02:00
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* Richard Hosking <richard at hovis dot net>
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2006-08-23 22:20:58 +02:00
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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2007-10-06 13:26:34 +02:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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2007-10-09 01:48:16 +02:00
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/*
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2007-10-06 13:26:34 +02:00
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* Sections based on the reference V4L2 capture example at
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* http://v4l2spec.bytesex.org/spec/capture-example.html
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*/
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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/*
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2007-10-09 01:48:16 +02:00
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* TODO: No mjpeg support yet.
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2007-10-06 13:26:34 +02:00
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* TODO: Tuner partial implementation.
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* TODO: Alsa input support?
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*/
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2006-08-23 22:20:58 +02:00
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <vlc/vlc.h>
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2006-11-26 15:59:36 +01:00
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#include <vlc_access.h>
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2007-02-22 00:02:56 +01:00
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#include <vlc_demux.h>
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2006-11-26 15:59:36 +01:00
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#include <vlc_input.h>
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#include <vlc_vout.h>
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2006-08-23 22:20:58 +02:00
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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2007-10-06 13:26:34 +02:00
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#include <sys/mman.h>
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2006-08-23 22:20:58 +02:00
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#include <linux/videodev2.h>
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2007-10-06 13:26:34 +02:00
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#include <sys/soundcard.h>
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2006-08-23 22:20:58 +02:00
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/*****************************************************************************
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* Module descriptior
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2007-10-06 13:26:34 +02:00
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*****************************************************************************/
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2006-08-23 22:20:58 +02:00
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static int Open ( vlc_object_t * );
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static void Close( vlc_object_t * );
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#define DEV_TEXT N_("Device name")
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#define DEV_LONGTEXT N_( \
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"Name of the device to use. " \
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"If you don't specify anything, /dev/video0 will be used.")
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2007-10-06 13:26:34 +02:00
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#define ADEV_TEXT N_("Audio device name")
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#define ADEV_LONGTEXT N_( \
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"Name of the audio device to use. " \
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2007-11-17 14:34:43 +01:00
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"If you don't specify anything, /dev/dsp will be used.")
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2007-10-06 13:26:34 +02:00
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#define STANDARD_TEXT N_( "Standard" )
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#define STANDARD_LONGTEXT N_( \
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"Video standard (Default, SECAM, PAL, or NTSC)." )
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#define CHROMA_TEXT N_("Video input chroma format")
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#define CHROMA_LONGTEXT N_( \
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"Force the Video4Linux2 video device to use a specific chroma format " \
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"(eg. I420, RV24, etc.)")
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2006-08-27 19:06:30 +02:00
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#define INPUT_TEXT N_( "Input" )
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#define INPUT_LONGTEXT N_( \
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"Input of the card to use (Usually, 0 = tuner, " \
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"1 = composite, 2 = svideo)." )
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2007-10-06 13:26:34 +02:00
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#define IOMETHOD_TEXT N_( "IO Method" )
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#define IOMETHOD_LONGTEXT N_( \
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"IO Method (READ, MMAP, USERPTR)." )
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2007-11-20 09:30:30 +01:00
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#define WIDTH_TEXT N_( "Width" )
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#define WIDTH_LONGTEXT N_( \
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"Force width (-1 for autodetect)." )
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#define HEIGHT_TEXT N_( "Height" )
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#define HEIGHT_LONGTEXT N_( \
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"Force height (-1 for autodetect)." )
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2007-10-06 13:26:34 +02:00
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#define FPS_TEXT N_( "Framerate" )
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#define FPS_LONGTEXT N_( "Framerate to capture, if applicable " \
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"(-1 for autodetect)." )
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#define STEREO_TEXT N_( "Stereo" )
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#define STEREO_LONGTEXT N_( \
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"Capture the audio stream in stereo." )
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#define SAMPLERATE_TEXT N_( "Samplerate" )
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#define SAMPLERATE_LONGTEXT N_( \
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2007-10-09 01:48:16 +02:00
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"Samplerate of the captured audio stream, in Hz (eg: 11025, 22050, 44100, 48000)" )
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2007-10-06 13:26:34 +02:00
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#define CACHING_TEXT N_("Caching value in ms")
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#define CACHING_LONGTEXT N_( \
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"Caching value for V4L2 captures. This " \
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"value should be set in milliseconds." )
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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typedef enum {
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IO_METHOD_READ,
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IO_METHOD_MMAP,
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IO_METHOD_USERPTR,
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} io_method;
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static int i_standards_list[] =
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{ V4L2_STD_UNKNOWN, V4L2_STD_SECAM, V4L2_STD_PAL, V4L2_STD_NTSC };
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static const char *psz_standards_list_text[] =
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{ N_("Default"), N_("SECAM"), N_("PAL"), N_("NTSC") };
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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static int i_iomethod_list[] =
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{ IO_METHOD_READ, IO_METHOD_MMAP, IO_METHOD_USERPTR };
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static const char *psz_iomethod_list_text[] =
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{ N_("READ"), N_("MMAP"), N_("USERPTR") };
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2006-08-23 22:20:58 +02:00
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vlc_module_begin();
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set_shortname( _("Video4Linux2") );
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set_description( _("Video4Linux2 input") );
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set_category( CAT_INPUT );
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set_subcategory( SUBCAT_INPUT_ACCESS );
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add_string( "v4l2-dev", "/dev/video0", 0, DEV_TEXT, DEV_LONGTEXT,
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VLC_FALSE );
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2007-11-17 14:34:43 +01:00
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add_string( "v4l2-adev", "/dev/dsp", 0, ADEV_TEXT, ADEV_LONGTEXT,
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2007-10-06 13:26:34 +02:00
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VLC_FALSE );
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add_integer( "v4l2-standard", 0, NULL, STANDARD_TEXT, STANDARD_LONGTEXT,
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VLC_FALSE );
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2007-10-06 17:34:52 +02:00
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change_integer_list( i_standards_list, psz_standards_list_text, 0 );
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2007-10-06 13:26:34 +02:00
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add_string( "v4l2-chroma", NULL, NULL, CHROMA_TEXT, CHROMA_LONGTEXT,
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VLC_TRUE );
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2006-08-27 19:06:30 +02:00
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add_integer( "v4l2-input", 0, NULL, INPUT_TEXT, INPUT_LONGTEXT,
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VLC_TRUE );
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2007-10-06 17:34:52 +02:00
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add_integer( "v4l2-io", IO_METHOD_MMAP, NULL, IOMETHOD_TEXT,
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2007-11-20 09:30:30 +01:00
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IOMETHOD_LONGTEXT, VLC_TRUE );
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2007-10-06 17:34:52 +02:00
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change_integer_list( i_iomethod_list, psz_iomethod_list_text, 0 );
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2007-11-20 09:30:30 +01:00
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add_integer( "v4l2-width", 0, NULL, WIDTH_TEXT,
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WIDTH_LONGTEXT, VLC_TRUE );
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add_integer( "v4l2-height", 0, NULL, HEIGHT_TEXT,
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HEIGHT_LONGTEXT, VLC_TRUE );
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2007-10-06 13:26:34 +02:00
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add_float( "v4l2-fps", 0, NULL, FPS_TEXT, FPS_LONGTEXT, VLC_TRUE );
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add_bool( "v4l2-stereo", VLC_TRUE, NULL, STEREO_TEXT, STEREO_LONGTEXT,
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VLC_TRUE );
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add_integer( "v4l2-samplerate", 48000, NULL, SAMPLERATE_TEXT,
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SAMPLERATE_LONGTEXT, VLC_TRUE );
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add_integer( "v4l2-caching", DEFAULT_PTS_DELAY / 1000, NULL,
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CACHING_TEXT, CACHING_LONGTEXT, VLC_TRUE );
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2006-08-23 22:20:58 +02:00
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add_shortcut( "v4l2" );
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set_capability( "access_demux", 10 );
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set_callbacks( Open, Close );
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vlc_module_end();
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/*****************************************************************************
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* Access: local prototypes
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*****************************************************************************/
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2007-10-06 13:26:34 +02:00
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static void ParseMRL( demux_t * );
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2006-08-23 22:20:58 +02:00
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static int Control( demux_t *, int, va_list );
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2007-10-06 13:26:34 +02:00
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static int Demux( demux_t * );
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static block_t* GrabVideo( demux_t *p_demux );
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static block_t* ProcessVideoFrame( demux_t *p_demux, uint8_t *p_frame );
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static block_t* GrabAudio( demux_t *p_demux );
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2006-08-27 19:06:30 +02:00
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2007-11-18 20:27:59 +01:00
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vlc_bool_t IsPixelFormatSupported( demux_t *p_demux, unsigned int i_pixelformat );
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2007-10-06 13:26:34 +02:00
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static int OpenVideoDev( demux_t *, char *psz_device );
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static int OpenAudioDev( demux_t *, char *psz_device );
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static vlc_bool_t ProbeVideoDev( demux_t *, char *psz_device );
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static vlc_bool_t ProbeAudioDev( demux_t *, char *psz_device );
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static struct
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2006-08-23 22:20:58 +02:00
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{
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2007-10-06 13:26:34 +02:00
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unsigned int i_v4l2;
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int i_fourcc;
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} v4l2chroma_to_fourcc[] =
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{
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{ V4L2_PIX_FMT_GREY, VLC_FOURCC( 'G', 'R', 'E', 'Y' ) },
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{ V4L2_PIX_FMT_HI240, VLC_FOURCC( 'I', '2', '4', '0' ) },
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{ V4L2_PIX_FMT_RGB565, VLC_FOURCC( 'R', 'V', '1', '6' ) },
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{ V4L2_PIX_FMT_RGB555, VLC_FOURCC( 'R', 'V', '1', '5' ) },
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{ V4L2_PIX_FMT_BGR24, VLC_FOURCC( 'R', 'V', '2', '4' ) },
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{ V4L2_PIX_FMT_BGR32, VLC_FOURCC( 'R', 'V', '3', '2' ) },
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{ V4L2_PIX_FMT_YUYV, VLC_FOURCC( 'Y', 'U', 'Y', '2' ) },
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{ V4L2_PIX_FMT_YUYV, VLC_FOURCC( 'Y', 'U', 'Y', 'V' ) },
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{ V4L2_PIX_FMT_UYVY, VLC_FOURCC( 'U', 'Y', 'V', 'Y' ) },
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{ V4L2_PIX_FMT_Y41P, VLC_FOURCC( 'I', '4', '1', 'N' ) },
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{ V4L2_PIX_FMT_YUV422P, VLC_FOURCC( 'I', '4', '2', '2' ) },
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{ V4L2_PIX_FMT_YVU420, VLC_FOURCC( 'I', '4', '2', '0' ) },
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{ V4L2_PIX_FMT_YUV411P, VLC_FOURCC( 'I', '4', '1', '1' ) },
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{ V4L2_PIX_FMT_YUV410, VLC_FOURCC( 'I', '4', '1', '0' ) },
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{ 0, 0 }
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};
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2006-08-23 22:20:58 +02:00
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2007-10-09 01:48:16 +02:00
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struct buffer_t
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2007-10-06 13:26:34 +02:00
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{
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void * start;
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size_t length;
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2007-10-12 18:50:53 +02:00
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void * orig_userp;
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2007-10-06 13:26:34 +02:00
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};
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struct demux_sys_t
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{
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char *psz_device; /* Main device from MRL, can be video or audio */
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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char *psz_vdev;
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int i_fd_video;
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char *psz_adev;
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int i_fd_audio;
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2007-11-18 20:27:59 +01:00
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char *psz_requested_chroma;
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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/* Video */
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io_method io;
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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int i_pts;
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2006-08-23 22:20:58 +02:00
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struct v4l2_capability dev_cap;
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int i_input;
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struct v4l2_input *p_inputs;
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2006-08-27 19:06:30 +02:00
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int i_selected_input;
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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int i_standard;
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struct v4l2_standard *p_standards;
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v4l2_std_id i_selected_standard_id;
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2006-08-23 22:20:58 +02:00
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int i_audio;
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/* V4L2 devices cannot have more than 32 audio inputs */
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struct v4l2_audio p_audios[32];
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int i_tuner;
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struct v4l2_tuner *p_tuners;
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2006-08-27 19:06:30 +02:00
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int i_codec;
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struct v4l2_fmtdesc *p_codecs;
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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struct buffer_t *p_buffers;
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unsigned int i_nbuffers;
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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int i_width;
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int i_height;
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float f_fps; /* <= 0.0 mean to grab at full rate */
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mtime_t i_video_pts; /* only used when f_fps > 0 */
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int i_fourcc;
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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picture_t pic;
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int i_video_frame_size;
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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es_out_id_t *p_es_video;
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2007-10-09 01:48:16 +02:00
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2007-10-06 13:26:34 +02:00
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/* Audio */
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int i_sample_rate;
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vlc_bool_t b_stereo;
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int i_audio_max_frame_size;
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block_t *p_block_audio;
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es_out_id_t *p_es_audio;
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2006-08-23 22:20:58 +02:00
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};
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/*****************************************************************************
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2007-10-06 13:26:34 +02:00
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* Open: opens v4l2 device
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2006-08-23 22:20:58 +02:00
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*****************************************************************************
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*
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* url: <video device>::::
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*
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*****************************************************************************/
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static int Open( vlc_object_t *p_this )
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{
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demux_t *p_demux = (demux_t*)p_this;
|
|
|
|
demux_sys_t *p_sys;
|
2007-10-06 13:26:34 +02:00
|
|
|
vlc_value_t val;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-02-22 00:02:56 +01:00
|
|
|
/* Only when selected */
|
2007-10-06 13:26:34 +02:00
|
|
|
if( *p_demux->psz_access == '\0' ) return VLC_EGENERIC;
|
2007-02-22 00:02:56 +01:00
|
|
|
|
2006-08-23 22:20:58 +02:00
|
|
|
/* Set up p_demux */
|
|
|
|
p_demux->pf_control = Control;
|
2007-10-06 13:26:34 +02:00
|
|
|
p_demux->pf_demux = Demux;
|
2006-08-23 22:20:58 +02:00
|
|
|
p_demux->info.i_update = 0;
|
|
|
|
p_demux->info.i_title = 0;
|
|
|
|
p_demux->info.i_seekpoint = 0;
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
p_demux->p_sys = p_sys = calloc( 1, sizeof( demux_sys_t ) );
|
2006-08-23 22:20:58 +02:00
|
|
|
if( p_sys == NULL ) return VLC_ENOMEM;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
p_sys->i_video_pts = -1;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
var_Create( p_demux, "v4l2-standard", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
|
|
|
|
var_Get( p_demux, "v4l2-standard", &val );
|
|
|
|
p_sys->i_selected_standard_id = i_standards_list[val.i_int];
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
p_sys->i_selected_input = var_CreateGetInteger( p_demux, "v4l2-input" );
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
p_sys->io = var_CreateGetInteger( p_demux, "v4l2-io" );
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-11-20 09:30:30 +01:00
|
|
|
p_sys->i_width = var_CreateGetInteger( p_demux, "v4l2-width" );
|
|
|
|
p_sys->i_height = var_CreateGetInteger( p_demux, "v4l2-height" );
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
var_Create( p_demux, "v4l2-fps", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
|
|
|
|
var_Get( p_demux, "v4l2-fps", &val );
|
|
|
|
p_sys->f_fps = val.f_float;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
var_Create( p_demux, "v4l2-samplerate", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
|
|
|
|
var_Get( p_demux, "v4l2-samplerate", &val );
|
|
|
|
p_sys->i_sample_rate = val.i_int;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-11-18 20:27:59 +01:00
|
|
|
p_sys->psz_requested_chroma = var_CreateGetString( p_demux, "v4l2-chroma" );
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
var_Create( p_demux, "v4l2-stereo", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
|
|
|
|
var_Get( p_demux, "v4l2-stereo", &val );
|
|
|
|
p_sys->b_stereo = val.b_bool;
|
|
|
|
|
|
|
|
p_sys->i_pts = var_CreateGetInteger( p_demux, "v4l2-caching" );
|
|
|
|
|
|
|
|
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;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
p_sys->p_es_video = p_sys->p_es_audio = 0;
|
|
|
|
p_sys->p_block_audio = 0;
|
|
|
|
|
|
|
|
ParseMRL( p_demux );
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Find main device (video or audio) */
|
|
|
|
if( p_sys->psz_device && *p_sys->psz_device )
|
|
|
|
{
|
|
|
|
msg_Dbg( p_demux, "main device='%s'", p_sys->psz_device );
|
2006-08-23 22:20:58 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Try to open as video device */
|
|
|
|
msg_Dbg( p_demux, "trying device '%s' as video", p_sys->psz_device );
|
|
|
|
if( ProbeVideoDev( p_demux, p_sys->psz_device ) )
|
|
|
|
{
|
|
|
|
msg_Dbg( p_demux, "'%s' is a video device", p_sys->psz_device );
|
2007-10-09 01:48:16 +02:00
|
|
|
/* Device was a video device */
|
2007-10-06 13:26:34 +02:00
|
|
|
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_demux, p_sys->psz_vdev );
|
|
|
|
if( p_sys->i_fd_video < 0 )
|
|
|
|
{
|
|
|
|
Close( p_this );
|
2007-10-09 01:48:16 +02:00
|
|
|
return VLC_EGENERIC;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
2007-10-09 01:48:16 +02:00
|
|
|
/* Try to open as audio device */
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Dbg( p_demux, "trying device '%s' as audio", p_sys->psz_device );
|
|
|
|
if( ProbeAudioDev( p_demux, p_sys->psz_device ) )
|
|
|
|
{
|
|
|
|
msg_Dbg( p_demux, "'%s' is an audio device", p_sys->psz_device );
|
|
|
|
/* Device was an audio device */
|
|
|
|
if( p_sys->psz_adev ) 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_demux, p_sys->psz_adev );
|
|
|
|
if( p_sys->i_fd_audio < 0 )
|
|
|
|
{
|
|
|
|
Close( p_this );
|
2007-10-09 01:48:16 +02:00
|
|
|
return VLC_EGENERIC;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2006-08-23 22:20:58 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* If no device opened, only continue if the access was forced */
|
|
|
|
if( p_sys->i_fd_video < 0 && p_sys->i_fd_audio < 0 )
|
|
|
|
{
|
|
|
|
if( strcmp( p_demux->psz_access, "v4l2" ) )
|
|
|
|
{
|
|
|
|
Close( p_this );
|
|
|
|
return VLC_EGENERIC;
|
|
|
|
}
|
|
|
|
}
|
2006-08-27 19:06:30 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Find video device */
|
|
|
|
if( 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 );
|
2007-11-18 20:27:59 +01:00
|
|
|
p_sys->psz_vdev = var_CreateGetString( p_demux, "v4l2-dev" );
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
|
2007-11-18 20:27:59 +01:00
|
|
|
msg_Dbg( p_demux, "opening '%s' as video", p_sys->psz_vdev );
|
2007-10-06 13:26:34 +02:00
|
|
|
if( p_sys->psz_vdev && *p_sys->psz_vdev && ProbeVideoDev( p_demux, p_sys->psz_vdev ) )
|
|
|
|
{
|
|
|
|
p_sys->i_fd_video = OpenVideoDev( p_demux, p_sys->psz_vdev );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Find audio device */
|
|
|
|
if( p_sys->i_fd_audio < 0 )
|
|
|
|
{
|
|
|
|
if( !p_sys->psz_adev || !*p_sys->psz_adev )
|
|
|
|
{
|
|
|
|
if( p_sys->psz_adev ) free( p_sys->psz_adev );
|
2007-11-18 20:27:59 +01:00
|
|
|
p_sys->psz_adev = var_CreateGetString( p_demux, "v4l2-adev" );
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
|
2007-11-18 20:27:59 +01:00
|
|
|
msg_Dbg( p_demux, "opening '%s' as audio", p_sys->psz_adev );
|
2007-10-06 13:26:34 +02:00
|
|
|
if( p_sys->psz_adev && *p_sys->psz_adev && ProbeAudioDev( p_demux, p_sys->psz_adev ) )
|
|
|
|
{
|
|
|
|
p_sys->i_fd_audio = OpenAudioDev( p_demux, p_sys->psz_adev );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if( p_sys->i_fd_video < 0 && p_sys->i_fd_audio < 0 )
|
|
|
|
{
|
|
|
|
Close( p_this );
|
|
|
|
return VLC_EGENERIC;
|
|
|
|
}
|
2006-08-23 22:20:58 +02:00
|
|
|
|
|
|
|
return VLC_SUCCESS;
|
|
|
|
}
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/*****************************************************************************
|
|
|
|
* ParseMRL: parse the options contained in the MRL
|
|
|
|
*****************************************************************************/
|
|
|
|
static void ParseMRL( demux_t *p_demux )
|
|
|
|
{
|
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
|
|
|
|
|
|
|
char *psz_dup = strdup( p_demux->psz_path );
|
|
|
|
char *psz_parser = psz_dup;
|
|
|
|
|
|
|
|
while( *psz_parser && *psz_parser != ':' )
|
|
|
|
{
|
|
|
|
psz_parser++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if( *psz_parser == ':' )
|
|
|
|
{
|
|
|
|
/* read options */
|
|
|
|
for( ;; )
|
|
|
|
{
|
|
|
|
*psz_parser++ = '\0';
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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 );
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
psz_parser += i_len;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
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 );
|
|
|
|
}
|
|
|
|
|
2007-11-18 20:27:59 +01:00
|
|
|
if( p_sys->psz_requested_chroma ) free( p_sys->psz_requested_chroma );
|
|
|
|
p_sys->psz_requested_chroma = strndup( psz_parser, i_len );
|
2007-10-06 13:26:34 +02:00
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
psz_parser += i_len;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
else if( !strncmp( psz_parser, "input=", strlen( "input=" ) ) )
|
|
|
|
{
|
|
|
|
p_sys->i_selected_input = strtol( psz_parser + strlen( "input=" ),
|
|
|
|
&psz_parser, 0 );
|
2007-10-09 01:48:16 +02:00
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
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 );
|
|
|
|
}
|
|
|
|
}
|
2007-11-20 09:30:30 +01:00
|
|
|
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 );
|
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
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, "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=" ),
|
2007-11-17 14:34:43 +01:00
|
|
|
&psz_parser, 0 );
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
msg_Warn( p_demux, "unknown option" );
|
|
|
|
}
|
|
|
|
|
|
|
|
while( *psz_parser && *psz_parser != ':' )
|
|
|
|
{
|
|
|
|
psz_parser++;
|
|
|
|
}
|
|
|
|
|
|
|
|
if( *psz_parser == '\0' )
|
|
|
|
{
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Main device */
|
|
|
|
if( *psz_dup )
|
|
|
|
{
|
|
|
|
p_sys->psz_device = strdup( psz_dup );
|
|
|
|
}
|
|
|
|
if( psz_dup ) free( psz_dup );
|
|
|
|
}
|
|
|
|
|
2006-08-23 22:20:58 +02:00
|
|
|
/*****************************************************************************
|
|
|
|
* Close: close device, free resources
|
|
|
|
*****************************************************************************/
|
|
|
|
static void Close( vlc_object_t *p_this )
|
|
|
|
{
|
|
|
|
demux_t *p_demux = (demux_t *)p_this;
|
2007-10-09 01:48:16 +02:00
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
2007-10-06 13:26:34 +02:00
|
|
|
struct v4l2_buffer buf;
|
|
|
|
enum v4l2_buf_type buf_type;
|
|
|
|
unsigned int i;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Stop video capture */
|
2007-10-09 01:48:16 +02:00
|
|
|
if( p_sys->i_fd_video >= 0 )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
switch( p_sys->io )
|
|
|
|
{
|
|
|
|
case IO_METHOD_READ:
|
|
|
|
/* Nothing to do */
|
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
case IO_METHOD_MMAP:
|
2007-10-09 01:48:16 +02:00
|
|
|
case IO_METHOD_USERPTR:
|
|
|
|
/* Some drivers 'hang' internally if this is not done before streamoff */
|
2007-10-06 13:26:34 +02:00
|
|
|
for( unsigned int i = 0; i < p_sys->i_nbuffers; i++ )
|
|
|
|
{
|
|
|
|
memset( &buf, 0, sizeof(buf) );
|
|
|
|
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
2007-11-24 18:28:48 +01:00
|
|
|
buf.memory = ( p_sys->io == IO_METHOD_USERPTR ) ?
|
|
|
|
V4L2_MEMORY_USERPTR : V4L2_MEMORY_MMAP;
|
2007-10-06 13:26:34 +02:00
|
|
|
ioctl( p_sys->i_fd_video, VIDIOC_DQBUF, &buf ); /* ignore result */
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
|
|
|
buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
2007-10-06 13:26:34 +02:00
|
|
|
if( ioctl( p_sys->i_fd_video, VIDIOC_STREAMOFF, &buf_type ) < 0 ) {
|
|
|
|
msg_Err( p_demux, "VIDIOC_STREAMOFF failed" );
|
2007-10-09 01:48:16 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
}
|
2006-08-23 22:20:58 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Free Video Buffers */
|
|
|
|
if( p_sys->p_buffers ) {
|
|
|
|
switch( p_sys->io )
|
|
|
|
{
|
|
|
|
case IO_METHOD_READ:
|
|
|
|
free( p_sys->p_buffers[0].start );
|
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
case IO_METHOD_MMAP:
|
2007-10-09 01:48:16 +02:00
|
|
|
for( i = 0; i < p_sys->i_nbuffers; ++i )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
if( munmap( p_sys->p_buffers[i].start, p_sys->p_buffers[i].length ) )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "munmap failed" );
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
|
|
|
case IO_METHOD_USERPTR:
|
|
|
|
for( i = 0; i < p_sys->i_nbuffers; ++i )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
2007-10-12 18:50:53 +02:00
|
|
|
free( p_sys->p_buffers[i].orig_userp );
|
2007-10-09 01:48:16 +02:00
|
|
|
}
|
|
|
|
break;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
free( p_sys->p_buffers );
|
|
|
|
}
|
2006-08-27 19:06:30 +02:00
|
|
|
|
2007-10-12 18:50:53 +02:00
|
|
|
/* Close */
|
|
|
|
if( p_sys->i_fd_video >= 0 ) close( p_sys->i_fd_video );
|
|
|
|
if( p_sys->i_fd_audio >= 0 ) close( p_sys->i_fd_audio );
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
if( p_sys->p_block_audio ) block_Release( p_sys->p_block_audio );
|
2006-08-23 22:20:58 +02:00
|
|
|
if( p_sys->psz_device ) free( p_sys->psz_device );
|
2007-10-06 13:26:34 +02:00
|
|
|
if( p_sys->psz_vdev ) free( p_sys->psz_vdev );
|
|
|
|
if( p_sys->psz_adev ) free( p_sys->psz_adev );
|
|
|
|
if( p_sys->p_standards ) free( p_sys->p_standards );
|
2006-08-23 22:20:58 +02:00
|
|
|
if( p_sys->p_inputs ) free( p_sys->p_inputs );
|
2006-08-27 19:06:30 +02:00
|
|
|
if( p_sys->p_tuners ) free( p_sys->p_tuners );
|
|
|
|
if( p_sys->p_codecs ) free( p_sys->p_codecs );
|
2007-11-18 20:27:59 +01:00
|
|
|
if( p_sys->psz_requested_chroma ) free( p_sys->psz_requested_chroma );
|
2006-08-23 22:20:58 +02:00
|
|
|
|
|
|
|
free( p_sys );
|
|
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
|
|
* Control:
|
|
|
|
*****************************************************************************/
|
|
|
|
static int Control( demux_t *p_demux, int i_query, va_list args )
|
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
|
|
|
vlc_bool_t *pb;
|
|
|
|
int64_t *pi64;
|
|
|
|
|
|
|
|
switch( i_query )
|
|
|
|
{
|
|
|
|
/* Special for access_demux */
|
|
|
|
case DEMUX_CAN_PAUSE:
|
|
|
|
case DEMUX_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;
|
|
|
|
}
|
|
|
|
|
2007-05-27 18:50:56 +02:00
|
|
|
return VLC_EGENERIC;
|
2006-08-23 22:20:58 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
2007-10-06 13:26:34 +02:00
|
|
|
* Demux: Processes the audio or video frame
|
2006-08-23 22:20:58 +02:00
|
|
|
*****************************************************************************/
|
2007-10-06 13:26:34 +02:00
|
|
|
static int Demux( demux_t *p_demux )
|
2006-08-23 22:20:58 +02:00
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
2007-10-09 01:48:16 +02:00
|
|
|
es_out_id_t *p_es = p_sys->p_es_audio;
|
2007-10-06 13:26:34 +02:00
|
|
|
block_t *p_block = NULL;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* 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 );
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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 );
|
|
|
|
|
2007-05-27 18:50:56 +02:00
|
|
|
return 1;
|
2006-08-23 22:20:58 +02:00
|
|
|
}
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/*****************************************************************************
|
|
|
|
* 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;
|
|
|
|
|
|
|
|
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;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Grab Video Frame */
|
|
|
|
switch( p_sys->io )
|
|
|
|
{
|
|
|
|
case IO_METHOD_READ:
|
|
|
|
if( read( p_sys->i_fd_video, p_sys->p_buffers[0].start, p_sys->p_buffers[0].length ) )
|
|
|
|
{
|
2007-10-09 01:48:16 +02:00
|
|
|
switch( errno )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
case EAGAIN:
|
|
|
|
return 0;
|
|
|
|
case EIO:
|
|
|
|
/* Could ignore EIO, see spec. */
|
|
|
|
/* fall through */
|
|
|
|
default:
|
|
|
|
msg_Err( p_demux, "Failed to read frame" );
|
|
|
|
return 0;
|
2007-10-09 01:48:16 +02:00
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
p_block = ProcessVideoFrame( p_demux, (uint8_t*)p_sys->p_buffers[0].start );
|
|
|
|
if( !p_block ) return 0;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
case IO_METHOD_MMAP:
|
|
|
|
memset( &buf, 0, sizeof(buf) );
|
|
|
|
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
buf.memory = V4L2_MEMORY_MMAP;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Wait for next frame */
|
|
|
|
if (ioctl( p_sys->i_fd_video, VIDIOC_DQBUF, &buf ) < 0 )
|
|
|
|
{
|
2007-10-09 01:48:16 +02:00
|
|
|
switch( errno )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
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;
|
2007-10-09 01:48:16 +02:00
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
if( buf.index >= p_sys->i_nbuffers ) {
|
|
|
|
msg_Err( p_demux, "Failed capturing new frame as i>=nbuffers" );
|
|
|
|
return 0;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
p_block = ProcessVideoFrame( p_demux, p_sys->p_buffers[buf.index].start );
|
|
|
|
if( !p_block ) return 0;
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
/* Unlock */
|
2007-10-06 13:26:34 +02:00
|
|
|
if( ioctl( p_sys->i_fd_video, VIDIOC_QBUF, &buf ) < 0 )
|
|
|
|
{
|
|
|
|
msg_Err (p_demux, "Failed to unlock (VIDIOC_QBUF)");
|
2007-10-09 01:48:16 +02:00
|
|
|
return 0;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
|
|
|
case IO_METHOD_USERPTR:
|
2007-10-06 13:26:34 +02:00
|
|
|
memset( &buf, 0, sizeof(buf) );
|
|
|
|
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
buf.memory = V4L2_MEMORY_USERPTR;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Wait for next frame */
|
|
|
|
if (ioctl( p_sys->i_fd_video, VIDIOC_DQBUF, &buf ) < 0 )
|
|
|
|
{
|
2007-10-09 01:48:16 +02:00
|
|
|
switch( errno )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
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;
|
2007-11-18 20:27:59 +01:00
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Find frame? */
|
|
|
|
unsigned int i;
|
|
|
|
for( i = 0; i < p_sys->i_nbuffers; i++ )
|
|
|
|
{
|
2007-10-09 01:48:16 +02:00
|
|
|
if( buf.m.userptr == (unsigned long)p_sys->p_buffers[i].start &&
|
2007-10-06 13:26:34 +02:00
|
|
|
buf.length == p_sys->p_buffers[i].length ) break;
|
|
|
|
}
|
|
|
|
|
2007-11-18 20:27:59 +01:00
|
|
|
if( i >= p_sys->i_nbuffers )
|
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Err( p_demux, "Failed capturing new frame as i>=nbuffers" );
|
|
|
|
return 0;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
p_block = ProcessVideoFrame( p_demux, (uint8_t*)buf.m.userptr );
|
|
|
|
if( !p_block ) return 0;
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
/* Unlock */
|
2007-10-06 13:26:34 +02:00
|
|
|
if( ioctl( p_sys->i_fd_video, VIDIOC_QBUF, &buf ) < 0 )
|
|
|
|
{
|
|
|
|
msg_Err (p_demux, "Failed to unlock (VIDIOC_QBUF)");
|
|
|
|
return 0;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Timestamp */
|
|
|
|
p_sys->i_video_pts = p_block->i_pts = p_block->i_dts = mdate();
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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 )
|
|
|
|
{
|
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
|
|
|
block_t *p_block;
|
|
|
|
|
|
|
|
if( !p_frame ) return 0;
|
2007-10-31 21:30:52 +01:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* New block */
|
|
|
|
if( !( p_block = block_New( p_demux, p_sys->i_video_frame_size ) ) )
|
|
|
|
{
|
|
|
|
msg_Warn( p_demux, "Cannot get new block" );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Copy frame */
|
|
|
|
memcpy( p_block->p_buffer, p_frame, p_sys->i_video_frame_size );
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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, i_correct;
|
|
|
|
block_t *p_block;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Copied from v4l.c */
|
|
|
|
|
|
|
|
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;
|
|
|
|
|
|
|
|
i_read = read( p_sys->i_fd_audio, p_block->p_buffer,
|
2007-10-09 01:48:16 +02:00
|
|
|
p_sys->i_audio_max_frame_size );
|
2007-10-06 13:26:34 +02:00
|
|
|
|
|
|
|
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( ioctl( p_sys->i_fd_audio, SNDCTL_DSP_GETISPACE, &buf_info ) == 0 )
|
|
|
|
{
|
|
|
|
i_correct += buf_info.bytes;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* 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
|
|
|
|
*****************************************************************************/
|
2007-10-09 01:48:16 +02:00
|
|
|
static int InitRead( demux_t *p_demux, int i_fd, unsigned int i_buffer_size )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
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;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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;
|
2007-10-09 01:48:16 +02:00
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
|
|
|
|
return VLC_SUCCESS;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
open_failed:
|
|
|
|
return VLC_EGENERIC;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
|
|
* Helper function to initalise video IO using the mmap method
|
|
|
|
*****************************************************************************/
|
2007-10-09 01:48:16 +02:00
|
|
|
static int InitMmap( demux_t *p_demux, int i_fd )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
|
|
|
struct v4l2_requestbuffers req;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
memset( &req, 0, sizeof(req) );
|
|
|
|
req.count = 4;
|
|
|
|
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
req.memory = V4L2_MEMORY_MMAP;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
if( ioctl( i_fd, VIDIOC_REQBUFS, &req ) < 0 )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "device does not support mmap i/o" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
if( req.count < 2 )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "Insufficient buffer memory" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
for( p_sys->i_nbuffers = 0; p_sys->i_nbuffers < req.count; ++p_sys->i_nbuffers )
|
|
|
|
{
|
|
|
|
struct v4l2_buffer buf;
|
2007-10-09 02:03:15 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
memset( &buf, 0, sizeof(buf) );
|
|
|
|
buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
buf.memory = V4L2_MEMORY_MMAP;
|
|
|
|
buf.index = p_sys->i_nbuffers;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
if( ioctl( i_fd, VIDIOC_QUERYBUF, &buf ) < 0 )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "VIDIOC_QUERYBUF" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
p_sys->p_buffers[p_sys->i_nbuffers].length = buf.length;
|
2007-10-09 01:48:16 +02:00
|
|
|
p_sys->p_buffers[p_sys->i_nbuffers].start =
|
2007-10-09 02:03:15 +02:00
|
|
|
mmap( NULL, buf.length, PROT_READ | PROT_WRITE, MAP_SHARED, i_fd, buf.m.offset );
|
2007-10-06 13:26:34 +02:00
|
|
|
|
|
|
|
if( p_sys->p_buffers[p_sys->i_nbuffers].start == MAP_FAILED )
|
|
|
|
{
|
2007-10-09 02:03:15 +02:00
|
|
|
msg_Err( p_demux, "mmap failed (%m)" );
|
2007-10-06 13:26:34 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
return VLC_SUCCESS;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
open_failed:
|
|
|
|
return VLC_EGENERIC;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
|
|
* Helper function to initalise video IO using the userbuf method
|
|
|
|
*****************************************************************************/
|
2007-10-09 01:48:16 +02:00
|
|
|
static int InitUserP( demux_t *p_demux, int i_fd, unsigned int i_buffer_size )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
|
|
|
struct v4l2_requestbuffers req;
|
2007-10-12 18:50:53 +02:00
|
|
|
unsigned int i_page_size;
|
|
|
|
|
|
|
|
i_page_size = getpagesize();
|
|
|
|
i_buffer_size = ( i_buffer_size + i_page_size - 1 ) & ~( i_page_size - 1);
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
memset( &req, 0, sizeof(req) );
|
|
|
|
req.count = 4;
|
|
|
|
req.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
req.memory = V4L2_MEMORY_USERPTR;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
if( ioctl( i_fd, VIDIOC_REQBUFS, &req ) < 0 )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "device does not support user pointer i/o" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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;
|
2007-10-12 18:50:53 +02:00
|
|
|
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 );
|
2007-10-06 13:26:34 +02:00
|
|
|
|
|
|
|
if( !p_sys->p_buffers[p_sys->i_nbuffers].start )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "out of memory" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return VLC_SUCCESS;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
open_failed:
|
|
|
|
return VLC_EGENERIC;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
2007-11-18 20:27:59 +01:00
|
|
|
* IsPixelFormatSupported: returns true if the specified V4L2 pixel format is
|
|
|
|
* in the array of supported formats returned by the driver
|
2007-10-06 13:26:34 +02:00
|
|
|
*****************************************************************************/
|
2007-11-18 20:27:59 +01:00
|
|
|
vlc_bool_t IsPixelFormatSupported( demux_t *p_demux, unsigned int i_pixelformat )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
|
|
|
|
|
|
|
for( int i_index = 0; i_index < p_sys->i_codec; i_index++ )
|
|
|
|
{
|
2007-11-18 20:27:59 +01:00
|
|
|
if( p_sys->p_codecs[i_index].pixelformat == i_pixelformat ) return VLC_TRUE;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
|
|
|
return VLC_FALSE;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
2006-08-23 22:20:58 +02:00
|
|
|
|
|
|
|
/*****************************************************************************
|
2006-08-27 19:06:30 +02:00
|
|
|
* OpenVideoDev: open and set up the video device and probe for capabilities
|
2006-08-23 22:20:58 +02:00
|
|
|
*****************************************************************************/
|
2007-10-06 13:26:34 +02:00
|
|
|
int OpenVideoDev( demux_t *p_demux, char *psz_device )
|
2006-08-23 22:20:58 +02:00
|
|
|
{
|
2006-08-27 19:06:30 +02:00
|
|
|
int i_fd;
|
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
2007-10-06 13:26:34 +02:00
|
|
|
struct v4l2_cropcap cropcap;
|
|
|
|
struct v4l2_crop crop;
|
|
|
|
struct v4l2_format fmt;
|
|
|
|
unsigned int i_min;
|
|
|
|
enum v4l2_buf_type buf_type;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
if( ( i_fd = open( psz_device, O_RDWR ) ) < 0 )
|
2006-08-27 19:06:30 +02:00
|
|
|
{
|
2007-09-18 18:20:49 +02:00
|
|
|
msg_Err( p_demux, "cannot open device (%m)" );
|
2006-08-27 19:06:30 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Select standard */
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
if( p_sys->i_selected_standard_id != V4L2_STD_UNKNOWN )
|
|
|
|
{
|
|
|
|
if( ioctl( i_fd, VIDIOC_S_STD, &p_sys->i_selected_standard_id ) < 0 )
|
|
|
|
{
|
2007-11-18 20:27:59 +01:00
|
|
|
msg_Err( p_demux, "cannot set standard (%m)" );
|
|
|
|
goto open_failed;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
msg_Dbg( p_demux, "Set standard" );
|
|
|
|
}
|
2006-08-27 19:06:30 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Select input */
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-05-27 18:50:56 +02:00
|
|
|
if( p_sys->i_selected_input > p_sys->i_input )
|
2006-08-27 19:06:30 +02:00
|
|
|
{
|
|
|
|
msg_Warn( p_demux, "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 )
|
|
|
|
{
|
2007-11-18 20:27:59 +01:00
|
|
|
msg_Err( p_demux, "cannot set input (%m)" );
|
|
|
|
goto open_failed;
|
2006-08-27 19:06:30 +02:00
|
|
|
}
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Verify device support for the various IO methods */
|
|
|
|
switch( p_sys->io )
|
2006-08-27 19:06:30 +02:00
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
case IO_METHOD_READ:
|
2007-10-09 01:48:16 +02:00
|
|
|
if( !(p_sys->dev_cap.capabilities & V4L2_CAP_READWRITE) )
|
2006-08-27 19:06:30 +02:00
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Err( p_demux, "device does not support read i/o" );
|
2007-10-09 01:48:16 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
case IO_METHOD_MMAP:
|
|
|
|
case IO_METHOD_USERPTR:
|
2007-10-09 01:48:16 +02:00
|
|
|
if( !(p_sys->dev_cap.capabilities & V4L2_CAP_STREAMING) )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
msg_Err( p_demux, "device does not support streaming i/o" );
|
2007-10-09 01:48:16 +02:00
|
|
|
goto open_failed;
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
default:
|
|
|
|
msg_Err( p_demux, "io method not supported" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Reset Cropping */
|
|
|
|
memset( &cropcap, 0, sizeof(cropcap) );
|
|
|
|
cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
if( ioctl( i_fd, VIDIOC_CROPCAP, &cropcap ) >= 0 )
|
2007-10-09 01:48:16 +02:00
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
|
|
crop.c = cropcap.defrect; /* reset to default */
|
|
|
|
if( ioctl( i_fd, VIDIOC_S_CROP, &crop ) < 0 )
|
2007-10-09 01:48:16 +02:00
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
switch( errno )
|
2007-10-09 01:48:16 +02:00
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
case EINVAL:
|
|
|
|
/* Cropping not supported. */
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/* Errors ignored. */
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Try and find default resolution if not specified */
|
2007-11-20 09:30:30 +01:00
|
|
|
memset( &fmt, 0, sizeof(fmt) );
|
|
|
|
fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-11-20 09:30:30 +01:00
|
|
|
if( p_sys->i_width <= 0 || p_sys->i_height <= 0 )
|
|
|
|
{
|
2007-11-18 20:27:59 +01:00
|
|
|
if( ioctl( i_fd, VIDIOC_G_FMT, &fmt ) < 0 )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
msg_Err( p_demux, "Cannot get default width and height." );
|
2006-08-27 19:06:30 +02:00
|
|
|
goto open_failed;
|
2007-10-09 01:48:16 +02:00
|
|
|
}
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
p_sys->i_width = fmt.fmt.pix.width;
|
|
|
|
p_sys->i_height = fmt.fmt.pix.height;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
if( fmt.fmt.pix.field == V4L2_FIELD_ALTERNATE )
|
|
|
|
{
|
|
|
|
p_sys->i_height = p_sys->i_height * 2;
|
|
|
|
}
|
|
|
|
}
|
2007-11-20 09:30:30 +01:00
|
|
|
else
|
|
|
|
{
|
|
|
|
msg_Dbg( p_demux, "trying specified size %dx%d", p_sys->i_width, p_sys->i_height );
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
|
|
|
fmt.fmt.pix.width = p_sys->i_width;
|
|
|
|
fmt.fmt.pix.height = p_sys->i_height;
|
2007-10-06 13:26:34 +02:00
|
|
|
fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Test and set Chroma */
|
|
|
|
fmt.fmt.pix.pixelformat = 0;
|
2007-11-18 20:27:59 +01:00
|
|
|
if( p_sys->psz_requested_chroma && strlen( p_sys->psz_requested_chroma ) > 0 )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
/* User specified chroma */
|
2007-11-18 20:27:59 +01:00
|
|
|
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++ )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
2007-11-18 20:27:59 +01:00
|
|
|
if( v4l2chroma_to_fourcc[i].i_fourcc == i_requested_fourcc )
|
|
|
|
{
|
|
|
|
fmt.fmt.pix.pixelformat = v4l2chroma_to_fourcc[i].i_v4l2;
|
|
|
|
break;
|
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
/* Try and set user chroma */
|
2007-11-18 20:27:59 +01:00
|
|
|
if( !IsPixelFormatSupported( p_demux, fmt.fmt.pix.pixelformat ) || ( fmt.fmt.pix.pixelformat && ioctl( i_fd, VIDIOC_S_FMT, &fmt ) < 0 ) )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
2007-11-18 20:27:59 +01:00
|
|
|
msg_Warn( p_demux, "Driver is unable to use specified chroma %s. Trying defaults.", p_sys->psz_requested_chroma );
|
2007-10-06 13:26:34 +02:00
|
|
|
fmt.fmt.pix.pixelformat = 0;
|
2006-08-27 19:06:30 +02:00
|
|
|
}
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* If no user specified chroma, find best */
|
|
|
|
if( !fmt.fmt.pix.pixelformat )
|
2006-08-27 19:06:30 +02:00
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YVU420;
|
2007-11-18 20:27:59 +01:00
|
|
|
if( !IsPixelFormatSupported( p_demux, fmt.fmt.pix.pixelformat ) || ioctl( i_fd, VIDIOC_S_FMT, &fmt ) < 0 )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;
|
2007-11-18 20:27:59 +01:00
|
|
|
if( !IsPixelFormatSupported( p_demux, fmt.fmt.pix.pixelformat ) || ioctl( i_fd, VIDIOC_S_FMT, &fmt ) < 0 )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUYV;
|
2007-11-18 20:27:59 +01:00
|
|
|
if( !IsPixelFormatSupported( p_demux, fmt.fmt.pix.pixelformat ) || ioctl( i_fd, VIDIOC_S_FMT, &fmt ) < 0 )
|
2007-10-06 13:26:34 +02:00
|
|
|
{
|
|
|
|
msg_Err( p_demux, "Could not select any of the default chromas!" );
|
2007-10-09 01:48:16 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
|
|
|
|
/* 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;
|
|
|
|
}
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* 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 )
|
2007-10-09 01:48:16 +02:00
|
|
|
fmt.fmt.pix.sizeimage = i_min;
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* Init vout Picture */
|
|
|
|
vout_InitPicture( VLC_OBJECT(p_demux), &p_sys->pic, p_sys->i_fourcc,
|
|
|
|
p_sys->i_width, p_sys->i_height, p_sys->i_width *
|
|
|
|
VOUT_ASPECT_FACTOR / p_sys->i_height );
|
|
|
|
if( !p_sys->pic.i_planes )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "unsupported chroma" );
|
2006-08-27 19:06:30 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
p_sys->i_video_frame_size = 0;
|
|
|
|
for( int i = 0; i < p_sys->pic.i_planes; i++ )
|
|
|
|
{
|
|
|
|
p_sys->i_video_frame_size += p_sys->pic.p[i].i_visible_lines * p_sys->pic.p[i].i_visible_pitch;
|
2007-10-09 01:48:16 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Init IO method */
|
2007-10-06 13:26:34 +02:00
|
|
|
switch( p_sys->io )
|
|
|
|
{
|
|
|
|
case IO_METHOD_READ:
|
|
|
|
if( InitRead( p_demux, i_fd, fmt.fmt.pix.sizeimage ) != VLC_SUCCESS ) goto open_failed;
|
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
case IO_METHOD_MMAP:
|
|
|
|
if( InitMmap( p_demux, i_fd ) != VLC_SUCCESS ) goto open_failed;
|
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
case IO_METHOD_USERPTR:
|
|
|
|
if( InitUserP( p_demux, i_fd, fmt.fmt.pix.sizeimage ) != VLC_SUCCESS ) goto open_failed;
|
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
|
|
|
/* Add */
|
2007-10-06 13:26:34 +02:00
|
|
|
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;
|
2007-10-09 01:48:16 +02:00
|
|
|
es_fmt.video.i_aspect = 4 * VOUT_ASPECT_FACTOR / 3;
|
2007-10-06 13:26:34 +02:00
|
|
|
|
|
|
|
/* 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;
|
|
|
|
}
|
2006-08-27 19:06:30 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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 );
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
/* Start Capture */
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
switch( p_sys->io )
|
|
|
|
{
|
|
|
|
case IO_METHOD_READ:
|
|
|
|
/* Nothing to do */
|
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-11-18 20:27:59 +01:00
|
|
|
if( ioctl( i_fd, VIDIOC_QBUF, &buf ) < 0 )
|
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Err( p_demux, "VIDIOC_QBUF failed" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
2007-11-18 20:27:59 +01:00
|
|
|
if( ioctl( i_fd, VIDIOC_STREAMON, &buf_type ) < 0 )
|
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Err( p_demux, "VIDIOC_STREAMON failed" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
break;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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;
|
|
|
|
|
2007-11-18 20:27:59 +01:00
|
|
|
if( ioctl( i_fd, VIDIOC_QBUF, &buf ) < 0 )
|
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Err( p_demux, "VIDIOC_QBUF failed" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
2007-11-18 20:27:59 +01:00
|
|
|
if( ioctl( i_fd, VIDIOC_STREAMON, &buf_type ) < 0 )
|
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Err( p_demux, "VIDIOC_STREAMON failed" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* report fps */
|
|
|
|
if( p_sys->f_fps >= 0.1 )
|
|
|
|
{
|
|
|
|
msg_Dbg( p_demux, "User set fps=%f", p_sys->f_fps );
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
return i_fd;
|
2006-08-27 19:06:30 +02:00
|
|
|
|
|
|
|
open_failed:
|
2007-11-18 20:27:59 +01:00
|
|
|
if( i_fd >= 0 ) close( i_fd );
|
2007-10-06 13:26:34 +02:00
|
|
|
return -1;
|
2006-08-27 19:06:30 +02:00
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
2007-10-06 13:26:34 +02:00
|
|
|
* OpenAudioDev: open and set up the audio device and probe for capabilities
|
2006-08-27 19:06:30 +02:00
|
|
|
*****************************************************************************/
|
2007-10-06 13:26:34 +02:00
|
|
|
int OpenAudioDev( demux_t *p_demux, char *psz_device )
|
|
|
|
{
|
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
|
|
|
int i_fd, i_format;
|
|
|
|
|
|
|
|
if( (i_fd = open( psz_device, O_RDONLY | O_NONBLOCK )) < 0 )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "cannot open 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_demux, "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_demux, "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_demux, "cannot set audio sample rate (%m)" );
|
|
|
|
goto adev_fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
msg_Dbg( p_demux, "opened adev=`%s' %s %dHz",
|
|
|
|
psz_device, p_sys->b_stereo ? "stereo" : "mono",
|
|
|
|
p_sys->i_sample_rate );
|
|
|
|
|
|
|
|
p_sys->i_audio_max_frame_size = 6 * 1024;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
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; /* FIXME ? */
|
|
|
|
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_demux, "new audio es %d channels %dHz",
|
|
|
|
fmt.audio.i_channels, fmt.audio.i_rate );
|
|
|
|
|
|
|
|
p_sys->p_es_audio = es_out_Add( p_demux->out, &fmt );
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
return i_fd;
|
|
|
|
|
|
|
|
adev_fail:
|
|
|
|
|
|
|
|
if( i_fd >= 0 ) close( i_fd );
|
2007-10-09 01:48:16 +02:00
|
|
|
return -1;
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/*****************************************************************************
|
|
|
|
* ProbeVideoDev: probe video for capabilities
|
|
|
|
*****************************************************************************/
|
|
|
|
vlc_bool_t ProbeVideoDev( demux_t *p_demux, char *psz_device )
|
2006-08-27 19:06:30 +02:00
|
|
|
{
|
|
|
|
int i_index;
|
2007-10-06 13:26:34 +02:00
|
|
|
int i_standard;
|
2006-08-23 22:20:58 +02:00
|
|
|
|
|
|
|
int i_fd;
|
|
|
|
demux_sys_t *p_sys = p_demux->p_sys;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
if( ( i_fd = open( psz_device, O_RDWR ) ) < 0 )
|
2006-08-23 22:20:58 +02:00
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Err( p_demux, "cannot open video device (%m)" );
|
2006-08-23 22:20:58 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Get device capabilites */
|
|
|
|
|
|
|
|
if( ioctl( i_fd, VIDIOC_QUERYCAP, &p_sys->dev_cap ) < 0 )
|
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Err( p_demux, "cannot get video capabilities (%m)" );
|
2006-08-23 22:20:58 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Dbg( p_demux, "V4L2 device: %s using driver: %s (version: %u.%u.%u) on %s",
|
2006-08-23 22:20:58 +02:00
|
|
|
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 );
|
|
|
|
|
2006-08-27 19:06:30 +02:00
|
|
|
msg_Dbg( p_demux, "the device has the capabilities: (%c) Video Capure, "
|
2006-08-23 22:20:58 +02:00
|
|
|
"(%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':' ') );
|
2006-08-24 08:39:20 +02:00
|
|
|
|
2006-08-27 19:06:30 +02:00
|
|
|
msg_Dbg( p_demux, "supported I/O methods are: (%c) Read/Write, "
|
2006-08-24 08:39:20 +02:00
|
|
|
"(%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':' ' ) );
|
2006-08-23 22:20:58 +02:00
|
|
|
|
|
|
|
/* 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 )
|
|
|
|
{
|
|
|
|
while( ioctl( i_fd, VIDIOC_S_INPUT, &p_sys->i_input ) >= 0 )
|
|
|
|
{
|
|
|
|
p_sys->i_input++;
|
|
|
|
}
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
p_sys->p_inputs = calloc( 1, p_sys->i_input * sizeof( struct v4l2_input ) );
|
2006-08-23 22:20:58 +02:00
|
|
|
if( !p_sys->p_inputs ) goto open_failed;
|
|
|
|
|
2006-08-27 19:06:30 +02:00
|
|
|
for( i_index = 0; i_index < p_sys->i_input; i_index++ )
|
2006-08-23 22:20:58 +02:00
|
|
|
{
|
2006-08-27 19:06:30 +02:00
|
|
|
p_sys->p_inputs[i_index].index = i_index;
|
2006-08-23 22:20:58 +02:00
|
|
|
|
2006-08-27 19:06:30 +02:00
|
|
|
if( ioctl( i_fd, VIDIOC_ENUMINPUT, &p_sys->p_inputs[i_index] ) )
|
2006-08-23 22:20:58 +02:00
|
|
|
{
|
2007-10-06 13:26:34 +02:00
|
|
|
msg_Err( p_demux, "cannot get video input characteristics (%m)" );
|
2006-08-23 22:20:58 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
2006-08-27 19:06:30 +02:00
|
|
|
msg_Dbg( p_demux, "video input %i (%s) has type: %s",
|
|
|
|
i_index,
|
|
|
|
p_sys->p_inputs[i_index].name,
|
|
|
|
p_sys->p_inputs[i_index].type
|
2006-08-23 22:20:58 +02:00
|
|
|
== V4L2_INPUT_TYPE_TUNER ?
|
|
|
|
"Tuner adapter" :
|
|
|
|
"External analog input" );
|
|
|
|
}
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
/* 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;
|
|
|
|
}
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
p_sys->p_standards = calloc( 1, p_sys->i_standard * sizeof( struct v4l2_standard ) );
|
2007-10-06 13:26:34 +02:00
|
|
|
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_demux, "cannot get video input standards (%m)" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
msg_Dbg( p_demux, "video standard %i is: %s",
|
|
|
|
i_standard,
|
|
|
|
p_sys->p_standards[i_standard].name);
|
|
|
|
}
|
|
|
|
}
|
2006-08-23 22:20:58 +02:00
|
|
|
|
|
|
|
/* initialize the structures for the ioctls */
|
2006-08-27 19:06:30 +02:00
|
|
|
for( i_index = 0; i_index < 32; i_index++ )
|
2006-08-23 22:20:58 +02:00
|
|
|
{
|
2006-08-27 19:06:30 +02:00
|
|
|
p_sys->p_audios[i_index].index = i_index;
|
2006-08-23 22:20:58 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
/* 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 )
|
|
|
|
{
|
2007-10-12 18:50:53 +02:00
|
|
|
msg_Err( p_demux, "cannot get audio input characteristics (%m)" );
|
2006-08-23 22:20:58 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
|
2006-08-27 19:06:30 +02:00
|
|
|
msg_Dbg( p_demux, "audio device %i (%s) is %s",
|
2006-08-23 22:20:58 +02:00
|
|
|
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->i_audio++;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if( p_sys->dev_cap.capabilities & V4L2_CAP_TUNER )
|
|
|
|
{
|
2007-05-27 18:50:56 +02:00
|
|
|
struct v4l2_tuner tuner;
|
2006-08-23 22:20:58 +02:00
|
|
|
|
2007-05-27 18:50:56 +02:00
|
|
|
memset( &tuner, 0, sizeof(tuner) );
|
2006-08-23 22:20:58 +02:00
|
|
|
while( ioctl( i_fd, VIDIOC_S_TUNER, &tuner ) >= 0 )
|
|
|
|
{
|
|
|
|
p_sys->i_tuner++;
|
|
|
|
tuner.index = p_sys->i_tuner;
|
|
|
|
}
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
p_sys->p_tuners = calloc( 1, p_sys->i_tuner * sizeof( struct v4l2_tuner ) );
|
2006-08-23 22:20:58 +02:00
|
|
|
if( !p_sys->p_tuners ) goto open_failed;
|
|
|
|
|
2006-08-27 19:06:30 +02:00
|
|
|
for( i_index = 0; i_index < p_sys->i_tuner; i_index++ )
|
2006-08-23 22:20:58 +02:00
|
|
|
{
|
2006-08-27 19:06:30 +02:00
|
|
|
p_sys->p_tuners[i_index].index = i_index;
|
2006-08-23 22:20:58 +02:00
|
|
|
|
2006-08-27 19:06:30 +02:00
|
|
|
if( ioctl( i_fd, VIDIOC_G_TUNER, &p_sys->p_tuners[i_index] ) )
|
2006-08-23 22:20:58 +02:00
|
|
|
{
|
2007-09-18 18:20:49 +02:00
|
|
|
msg_Err( p_demux, "cannot get tuner characteristics (%m)" );
|
2006-08-23 22:20:58 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
2006-08-27 19:06:30 +02:00
|
|
|
msg_Dbg( p_demux, "tuner %i (%s) has type: %s, "
|
2006-08-23 22:20:58 +02:00
|
|
|
"frequency range: %.1f %s -> %.1f %s",
|
2006-08-27 19:06:30 +02:00
|
|
|
i_index,
|
|
|
|
p_sys->p_tuners[i_index].name,
|
|
|
|
p_sys->p_tuners[i_index].type
|
2006-08-23 22:20:58 +02:00
|
|
|
== V4L2_TUNER_RADIO ?
|
|
|
|
"Radio" : "Analog TV",
|
2006-08-27 19:06:30 +02:00
|
|
|
p_sys->p_tuners[i_index].rangelow * 62.5,
|
|
|
|
p_sys->p_tuners[i_index].capability &
|
2006-08-23 22:20:58 +02:00
|
|
|
V4L2_TUNER_CAP_LOW ?
|
|
|
|
"Hz" : "kHz",
|
2006-08-27 19:06:30 +02:00
|
|
|
p_sys->p_tuners[i_index].rangehigh * 62.5,
|
|
|
|
p_sys->p_tuners[i_index].capability &
|
2006-08-23 22:20:58 +02:00
|
|
|
V4L2_TUNER_CAP_LOW ?
|
|
|
|
"Hz" : "kHz" );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-08-27 19:06:30 +02:00
|
|
|
/* Probe for available chromas */
|
|
|
|
if( p_sys->dev_cap.capabilities & V4L2_CAP_VIDEO_CAPTURE )
|
|
|
|
{
|
2007-05-27 18:50:56 +02:00
|
|
|
struct v4l2_fmtdesc codec;
|
2006-08-27 19:06:30 +02:00
|
|
|
|
|
|
|
i_index = 0;
|
2007-05-27 18:50:56 +02:00
|
|
|
memset( &codec, 0, sizeof(codec) );
|
2006-08-27 19:06:30 +02:00
|
|
|
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;
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
p_sys->p_codecs = calloc( 1, p_sys->i_codec * sizeof( struct v4l2_fmtdesc ) );
|
2006-08-27 19:06:30 +02:00
|
|
|
|
|
|
|
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 )
|
|
|
|
{
|
2007-09-18 18:20:49 +02:00
|
|
|
msg_Err( p_demux, "cannot get codec description (%m)" );
|
2006-08-27 19:06:30 +02:00
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-11-18 20:27:59 +01:00
|
|
|
|
|
|
|
/* only print if vlc supports the format */
|
|
|
|
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_demux, "device supports chroma %4s [%s]",
|
|
|
|
psz_fourcc,
|
2006-08-27 19:06:30 +02:00
|
|
|
p_sys->p_codecs[i_index].description );
|
2007-11-18 20:27:59 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
if( !b_codec_supported )
|
|
|
|
{
|
|
|
|
msg_Dbg( p_demux, "device codec %s not supported",
|
|
|
|
p_sys->p_codecs[i_index].description );
|
|
|
|
}
|
|
|
|
|
2006-08-27 19:06:30 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2006-08-23 22:20:58 +02:00
|
|
|
if( i_fd >= 0 ) close( i_fd );
|
2007-10-06 13:26:34 +02:00
|
|
|
return VLC_TRUE;
|
2006-08-23 22:20:58 +02:00
|
|
|
|
|
|
|
open_failed:
|
2007-10-06 13:26:34 +02:00
|
|
|
|
2006-08-23 22:20:58 +02:00
|
|
|
if( i_fd >= 0 ) close( i_fd );
|
2007-10-06 13:26:34 +02:00
|
|
|
return VLC_FALSE;
|
2006-08-23 22:20:58 +02:00
|
|
|
|
|
|
|
}
|
2007-10-06 13:26:34 +02:00
|
|
|
|
|
|
|
/*****************************************************************************
|
|
|
|
* ProbeAudioDev: probe audio for capabilities
|
|
|
|
*****************************************************************************/
|
|
|
|
vlc_bool_t ProbeAudioDev( demux_t *p_demux, char *psz_device )
|
|
|
|
{
|
|
|
|
int i_fd = 0;
|
|
|
|
int i_caps;
|
|
|
|
|
|
|
|
if( ( i_fd = open( psz_device, O_RDONLY | O_NONBLOCK ) ) < 0 )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "cannot open audio device (%m)" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
|
|
|
|
2007-10-09 01:48:16 +02:00
|
|
|
/* this will fail if the device is video */
|
2007-10-06 13:26:34 +02:00
|
|
|
if( ioctl( i_fd, SNDCTL_DSP_GETCAPS, &i_caps ) < 0 )
|
|
|
|
{
|
|
|
|
msg_Err( p_demux, "cannot get audio caps (%m)" );
|
|
|
|
goto open_failed;
|
|
|
|
}
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-11-18 20:27:59 +01:00
|
|
|
if( i_fd >= 0 ) close( i_fd );
|
2007-10-06 13:26:34 +02:00
|
|
|
return VLC_TRUE;
|
|
|
|
|
|
|
|
open_failed:
|
2007-11-18 20:27:59 +01:00
|
|
|
if( i_fd >= 0 ) close( i_fd );
|
2007-10-06 13:26:34 +02:00
|
|
|
return VLC_FALSE;
|
2007-10-09 01:48:16 +02:00
|
|
|
|
2007-10-06 13:26:34 +02:00
|
|
|
}
|
|
|
|
|