diff options
Diffstat (limited to 'src/dv1394.cc')
| -rw-r--r-- | src/dv1394.cc | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/src/dv1394.cc b/src/dv1394.cc deleted file mode 100644 index 270da2e..0000000 --- a/src/dv1394.cc +++ /dev/null @@ -1,175 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/*************************************************************************** - * dv1394.cc - * - * Tue Apr 19 12:10:34 CEST 2005 - * Copyright 2005 Bent Bisballe - * deva@aasimon.org - ****************************************************************************/ - -/* - * This file is part of MIaV. - * - * MIaV 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. - * - * MIaV 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 MIaV; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ -#include <config.h> -#include "dv1394.h" - -#ifdef USE_GUI - -#include "dv.h" - - -#include <stdlib.h> -#include <memory.h> -#include <stdio.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <errno.h> - - - -/** - * Callback function for the firewire interface. - */ -static int raw_reader( raw1394handle_t handle, int channel, size_t length, quadlet_t *data ) -{ - static char *framedata = NULL; - - // Only process packets with reasonable length. - if ( length > 16 ) - { - unsigned char * p = ( unsigned char* ) & data[ 3 ]; - int section_type = p[ 0 ] >> 5; // section type is in bits 5 - 7 - int dif_sequence = p[ 1 ] >> 4; // dif sequence number is in bits 4 - 7 - int dif_block = p[ 2 ]; - - if ( section_type == 0 && dif_sequence == 0 ) - { - if ( framedata != NULL ) - { - raw1394_set_userdata(handle, (void *)framedata); - framedata = NULL; - } - } - - if(!framedata) - { - framedata = (char *)malloc(DVPACKAGE_SIZE); // dvframe.h - if(!framedata) - { - // We're fucked - fprintf(stderr, "Framedata allocation error: %s.\n", strerror( errno ) ); fflush(stderr); - exit(1); - } - } - - switch ( section_type ) - { - case 0: // 1 Header block - // p[3] |= 0x80; // hack to force PAL data - memcpy( framedata + dif_sequence * 150 * 80, p, 480 ); - break; - - case 1: // 2 Subcode blocks - memcpy( framedata + dif_sequence * 150 * 80 + ( 1 + dif_block ) * 80, p, 480 ); - break; - - case 2: // 3 VAUX blocks - memcpy( framedata + dif_sequence * 150 * 80 + ( 3 + dif_block ) * 80, p, 480 ); - break; - - case 3: // 9 Audio blocks interleaved with video - memcpy( framedata + dif_sequence * 150 * 80 + ( 6 + dif_block * 16 ) * 80, p, 480 ); - break; - - case 4: // 135 Video blocks interleaved with audio - memcpy( framedata + dif_sequence * 150 * 80 + ( 7 + ( dif_block / 15 ) + dif_block ) * 80, p, 480 ); - break; - - default: // we can't handle any other data - break; - } - } - return 0; -} - -dv1394::dv1394(Info *i, int p, int c) -{ - info = i; - port = p; - channel = c; -} - -dv1394::~dv1394() -{ - // Close firewire connection. - if(handle) raw1394_destroy_handle(handle); -} - -bool dv1394::connect() -{ - int n_ports; - struct raw1394_portinfo pinf[ 16 ]; - - // Get handle to firewire channels - handle = raw1394_new_handle(); - if(!handle) { - info->error("raw1394 - failed to get handle: %s.", strerror( errno ) ); - return false; - } - - // how many adapters are hooked in? - if((n_ports = raw1394_get_port_info(handle, pinf, 16)) < 0 ) { - info->error("raw1394 - failed to get port info: %s.", strerror( errno ) ); - raw1394_destroy_handle(handle); - handle = NULL; - return false; - } - - // Tell raw1394 which host adapter to use - if(raw1394_set_port(handle, port) < 0 ) { - info->error("raw1394 - failed to set port: %s.", strerror( errno ) ); - raw1394_destroy_handle(handle); - handle = NULL; - return false; - } - - raw1394_set_iso_handler( handle, channel, raw_reader); - raw1394_set_userdata( handle, ( void* ) NULL); - raw1394_start_iso_rcv( handle, channel); - - return true; -} - -unsigned char *dv1394::readFrame() -{ - // Firewire port not correctly opened. - if(!handle) return NULL; - - unsigned char *ptr; - while(1) { - raw1394_loop_iterate(handle); - ptr = (unsigned char *)raw1394_get_userdata(handle); - if(ptr) { - raw1394_set_userdata(handle, NULL); - break; - } - } - return ptr; -} - -#endif/*USE_GUI*/ |