sdi: support for Black Magic DecLink SDI and Studio cards

modules/demux/sdi/sdi.c

+/*****************************************************************************
+ * sdi.c: Serial Digital Interface
+ *****************************************************************************
+ * Copyright (C) 2010 M2X BV
+ * $Id$
+ *
+ * Authors: Jean-Paul Saman <jpsaman@videolan.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_demux.h>
+
+#if defined(HAVE_SDI_BMSDK_API)
+#include "sdi_declink.h"
+#endif
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+static int  Open  (vlc_object_t *);
+static void Close (vlc_object_t *);
+
+#define SDI_CARD_TEXT N_("SDI Card name (default declink)")
+#define SDI_CARD_LONGTEXT N_( \
+    "Specific the name of SDI card to use. Currently supported cards are: " \
+    "declink")
+
+static const char *const ppsz_sdi_card_list[] = {
+    "declink"
+};
+
+#define SDI "sdi-"
+
+vlc_module_begin()
+    set_category(CAT_INPUT)
+    set_subcategory(SUBCAT_INPUT_DEMUX)
+    set_description(N_("SDI demuxer"))
+    set_capability("demux", 10)
+    set_callbacks(Open, Close)
+    add_shortcut("sdi")
+
+    add_string(SDI"card", NULL, NULL, SDI_CARD_TEXT, SDI_CARD_LONGTEXT, true)
+        change_string_list( ppsz_sdi_card_list, ppsz_sdi_card_list, 0 );
+
+vlc_module_end()
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+
+struct demux_sys_t
+{
+    es_out_id_t     *p_es;
+
+    char *psz_card;
+
+    /* card specific options */
+#if defined(HAVE_SDI_BMSDK_API)
+    IDeckLinkIterator *deckLinkIterator;
+#endif
+};
+
+/*****************************************************************************
+ * Open:
+ *****************************************************************************/
+static int Open(vlc_object_t *p_this)
+{
+    demux_t     *p_demux = (demux_t*)p_this;
+    demux_sys_t *p_sys = NULL;
+
+    p_demux->p_sys = p_sys = calloc(1, sizeof(demux_sys_t));
+    if (!p_sys)
+       return VLC_ENOMEM;
+
+    p_sys->p_es = NULL;
+
+    p_sys->psz_card = var_GetString(p_demux, "card");
+    if( !p_sys->psz_card )
+    {
+        msg_Err(p_demux, "No SDI card specified.");
+        goto error_card;
+    }
+
+    /* use cardspecific routines */
+    if (strncmp(p_sys->psz_card. "declink") == 0)
+    {
+        p_demux->pf_demux = declink_Demux;
+        p_demux->pf_control = declink_Control;
+        if (declink_Open(p_demux) != VLC_SUCCESS)
+            goto error_card;
+    }
+
+    return VLC_SUCCESS;
+
+error_card:
+    free(p_sys->psz_card);
+    free(p_sys);
+    return VLC_EGENERIC;
+}
+
+/*****************************************************************************
+ * Close:
+ *****************************************************************************/
+static void Close( vlc_object_t *p_this )
+{
+    demux_t     *p_demux = (demux_t*)p_this;
+    demux_sys_t *p_sys = p_demux->p_sys;
+
+    if (strncmp(p_sys->psz_card. "declink") == 0)
+    {
+        declink_Close(p_this);
+    }
+
+    free(p_sys->psz_card);
+    free(p_sys);
+    return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Other:
+ *****************************************************************************/

modules/demux/sdi/sdi_declink.c

+/*****************************************************************************
+ * sdi_declink.c: SDI Blackmagic Declink cards
+ *****************************************************************************
+ * Copyright (C) 2010 M2X BV
+ * $Id$
+ *
+ * Authors: Jean-Paul Saman <jpsaman@videolan.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_demux.h>
+
+#include "sdi_declink.h"
+
+/*****************************************************************************
+ * declink_Open:
+ *****************************************************************************/
+static int declink_Open(vlc_object_t *p_this)
+{
+    demux_t     *p_demux = (demux_t*)p_this;
+    demux_sys_t *p_sys = p_demux->p_sys;
+
+#ifdef WIN32
+    p_sys->deckLinkIterator = NULL;
+    HRESULT hr = CoCreateInstance(CLSID_CDeckLinkIterator, NULL, CLSCTX_ALL,
+                              IID_IDeckLinkIterator, (void**)&deckLinkIterator);
+    if (SUCCEEDED(hr))
+    {
+        return VLC_SUCCESS;
+    }
+    return VLC_EGENERIC;
+#else
+    p_sys->deckLinkIterator = CreateDeckLinkIteratorInstance();
+    if (p_sys->deckLinkIterator == NULL)
+        return VLC_EGENERIC;
+#endif
+
+    return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * declink_Close:
+ *****************************************************************************/
+static void declink_Close( vlc_object_t *p_this )
+{
+    demux_t     *p_demux = (demux_t*)p_this;
+    demux_sys_t *p_sys = p_demux->p_sys;
+
+#ifdef WIN32
+    p_sys->deckLinkIterator->Release();
+#elif defined(HAVE_LINUX) || defined(__APPLE__)
+    DestroyDeckLinkIteratorInstance(p_sys->deckLinkIterator);
+#endif
+    return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * declink_Demux:
+ *****************************************************************************/
+static int declink_Demux(demux_t *p_demux)
+{
+    demux_t     *p_demux = (demux_t*)p_this;
+    demux_sys_t *p_sys = p_demux->p_sys;
+
+    return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * declink_Control:
+ *****************************************************************************/
+static int declink_Control(demux_t *p_demux, int i_query, va_list args)
+{
+    demux_t     *p_demux = (demux_t*)p_this;
+    demux_sys_t *p_sys = p_demux->p_sys;
+
+    return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Other:
+ *****************************************************************************/

modules/demux/sdi/sdi_declink.h

+/*****************************************************************************
+ * sdi_declink.c: SDI Blackmagic Declink cards
+ *****************************************************************************
+ * Copyright (C) 2010 M2X BV
+ * $Id$
+ *
+ * Authors: Jean-Paul Saman <jpsaman@videolan.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+#ifndef BLACKMAGIC_DECLINK_H_
+#define BLACKMAGIC_DECLINK_H_
+
+#ifdef __APPLE__
+#include "Declink 7.5/Mac/Include/DecLinkAPI.h"
+#elif defined(WIN32)
+/* use COM idl */
+#else /* assume linux */
+#include "Declink 7.5/Linux/DecLinkAPI.h"
+#endif
+
+static int  declink_Open  (vlc_object_t *);
+static void declink_Close (vlc_object_t *);
+
+static int  declink_Demux  (demux_t *);
+static int  declink_Control(demux_t *, int, va_list);
+
+#endif
+