gstreamer/sys/decklink/gstdecklink.cpp

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/* GStreamer
* Copyright (C) 2011 David Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include "gstdecklink.h"
#include "gstdecklinksrc.h"
#include "gstdecklinksink.h"
GType
gst_decklink_mode_get_type (void)
{
static gsize id = 0;
static const GEnumValue modes[] = {
{GST_DECKLINK_MODE_NTSC, "ntsc", "NTSC SD 60i"},
{GST_DECKLINK_MODE_NTSC2398, "ntsc2398", "NTSC SD 60i (24 fps)"},
{GST_DECKLINK_MODE_PAL, "pal", "PAL SD 50i"},
{GST_DECKLINK_MODE_NTSC_P, "ntsc-p", "NTSC SD 60p"},
{GST_DECKLINK_MODE_PAL_P, "pal-p", "PAL SD 50p"},
{GST_DECKLINK_MODE_1080p2398, "1080p2398", "HD1080 23.98p"},
{GST_DECKLINK_MODE_1080p24, "1080p24", "HD1080 24p"},
{GST_DECKLINK_MODE_1080p25, "1080p25", "HD1080 25p"},
{GST_DECKLINK_MODE_1080p2997, "1080p2997", "HD1080 29.97p"},
{GST_DECKLINK_MODE_1080p30, "1080p30", "HD1080 30p"},
{GST_DECKLINK_MODE_1080i50, "1080i50", "HD1080 50i"},
{GST_DECKLINK_MODE_1080i5994, "1080i5994", "HD1080 59.94i"},
{GST_DECKLINK_MODE_1080i60, "1080i60", "HD1080 60i"},
{GST_DECKLINK_MODE_1080p50, "1080p50", "HD1080 50p"},
{GST_DECKLINK_MODE_1080p5994, "1080p5994", "HD1080 59.94p"},
{GST_DECKLINK_MODE_1080p60, "1080p60", "HD1080 60p"},
{GST_DECKLINK_MODE_720p50, "720p50", "HD720 50p"},
{GST_DECKLINK_MODE_720p5994, "720p5994", "HD720 59.94p"},
{GST_DECKLINK_MODE_720p60, "720p60", "HD720 60p"},
{0, NULL, NULL}
};
if (g_once_init_enter (&id)) {
GType tmp = g_enum_register_static ("GstDecklinkModes", modes);
g_once_init_leave (&id, tmp);
}
return (GType) id;
}
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GType
gst_decklink_connection_get_type (void)
{
static gsize id = 0;
static const GEnumValue connections[] = {
{GST_DECKLINK_CONNECTION_SDI, "sdi", "SDI"},
{GST_DECKLINK_CONNECTION_HDMI, "hdmi", "HDMI"},
{GST_DECKLINK_CONNECTION_OPTICAL_SDI, "optical-sdi", "Optical SDI"},
{GST_DECKLINK_CONNECTION_COMPONENT, "component", "Component"},
{GST_DECKLINK_CONNECTION_COMPOSITE, "composite", "Composite"},
{GST_DECKLINK_CONNECTION_SVIDEO, "svideo", "S-Video"},
{0, NULL, NULL}
};
if (g_once_init_enter (&id)) {
GType tmp = g_enum_register_static ("GstDecklinkConnection", connections);
g_once_init_leave (&id, tmp);
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}
return (GType) id;
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}
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GType
gst_decklink_audio_connection_get_type (void)
{
static gsize id = 0;
static const GEnumValue connections[] = {
{GST_DECKLINK_AUDIO_CONNECTION_AUTO, "auto", "Automatic"},
{GST_DECKLINK_AUDIO_CONNECTION_EMBEDDED, "embedded",
"SDI/HDMI embedded audio"},
{GST_DECKLINK_AUDIO_CONNECTION_AES_EBU, "aes", "AES/EBU input"},
{GST_DECKLINK_AUDIO_CONNECTION_ANALOG, "analog", "Analog input"},
{0, NULL, NULL}
};
if (g_once_init_enter (&id)) {
GType tmp =
g_enum_register_static ("GstDecklinkAudioConnection", connections);
g_once_init_leave (&id, tmp);
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}
return (GType) id;
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}
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#define NTSC 10, 11, false, false
#define PAL 12, 11, true, false
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#define HD 1, 1, false, true
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static const GstDecklinkMode modes[] = {
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{bmdModeNTSC, 720, 486, 30000, 1001, true, NTSC},
{bmdModeNTSC2398, 720, 486, 24000, 1001, true, NTSC},
{bmdModePAL, 720, 576, 25, 1, true, PAL},
{bmdModeNTSCp, 720, 486, 30000, 1001, false, NTSC},
{bmdModePALp, 720, 576, 25, 1, false, PAL},
{bmdModeHD1080p2398, 1920, 1080, 24000, 1001, false, HD},
{bmdModeHD1080p24, 1920, 1080, 24, 1, false, HD},
{bmdModeHD1080p25, 1920, 1080, 25, 1, false, HD},
{bmdModeHD1080p2997, 1920, 1080, 30000, 1001, false, HD},
{bmdModeHD1080p30, 1920, 1080, 30, 1, false, HD},
{bmdModeHD1080i50, 1920, 1080, 25, 1, true, HD},
{bmdModeHD1080i5994, 1920, 1080, 30000, 1001, true, HD},
{bmdModeHD1080i6000, 1920, 1080, 30, 1, true, HD},
{bmdModeHD1080p50, 1920, 1080, 50, 1, false, HD},
{bmdModeHD1080p5994, 1920, 1080, 30000, 1001, false, HD},
{bmdModeHD1080p6000, 1920, 1080, 60, 1, false, HD},
{bmdModeHD720p50, 1280, 720, 50, 1, false, HD},
{bmdModeHD720p5994, 1280, 720, 60000, 1001, false, HD},
{bmdModeHD720p60, 1280, 720, 60, 1, false, HD}
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};
const GstDecklinkMode *
gst_decklink_get_mode (GstDecklinkModeEnum e)
{
return &modes[e];
}
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static GstStructure *
gst_decklink_mode_get_structure (GstDecklinkModeEnum e)
{
const GstDecklinkMode *mode = &modes[e];
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return gst_structure_new ("video/x-raw-yuv",
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'),
"width", G_TYPE_INT, mode->width,
"height", G_TYPE_INT, mode->height,
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"framerate", GST_TYPE_FRACTION, mode->fps_n, mode->fps_d,
"interlaced", G_TYPE_BOOLEAN, mode->interlaced,
"pixel-aspect-ratio", GST_TYPE_FRACTION, mode->par_n, mode->par_d,
"color-matrix", G_TYPE_STRING, mode->is_hdtv ? "hdtv" : "sdtv",
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"chroma-site", G_TYPE_STRING, "mpeg2", NULL);
}
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GstCaps *
gst_decklink_mode_get_caps (GstDecklinkModeEnum e)
{
GstCaps *caps;
caps = gst_caps_new_empty ();
gst_caps_append_structure (caps, gst_decklink_mode_get_structure (e));
return caps;
}
GstCaps *
gst_decklink_mode_get_template_caps (void)
{
int i;
GstCaps *caps;
GstStructure *s;
caps = gst_caps_new_empty ();
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for (i = 0; i < (int) G_N_ELEMENTS (modes); i++) {
s = gst_decklink_mode_get_structure ((GstDecklinkModeEnum) i);
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gst_caps_append_structure (caps, s);
}
return caps;
}
typedef struct _Device Device;
struct _Device {
IDeckLink *decklink;
IDeckLinkInput *input;
IDeckLinkOutput *output;
IDeckLinkConfiguration *config;
};
static int n_devices;
static Device devices[10];
static void
init_devices (void)
{
IDeckLinkIterator *iterator;
IDeckLink *decklink = NULL;
HRESULT ret;
int i;
static gboolean inited = FALSE;
if (inited) return;
inited = TRUE;
iterator = CreateDeckLinkIteratorInstance ();
if (iterator == NULL) {
GST_ERROR ("no driver");
return;
}
i = 0;
ret = iterator->Next (&decklink);
while (ret == S_OK) {
devices[i].decklink = decklink;
ret = decklink->QueryInterface (IID_IDeckLinkInput,
(void **) &devices[i].input);
if (ret != S_OK) {
GST_WARNING ("selected device does not have input interface");
return;
}
ret = decklink->QueryInterface (IID_IDeckLinkOutput,
(void **) &devices[i].output);
if (ret != S_OK) {
GST_WARNING ("selected device does not have output interface");
return;
}
ret = decklink->QueryInterface (IID_IDeckLinkConfiguration,
(void **) &devices[i].config);
if (ret != S_OK) {
GST_WARNING ("selected device does not have config interface");
return;
}
ret = iterator->Next (&decklink);
i++;
}
n_devices = i;
iterator->Release();
}
IDeckLink *
gst_decklink_get_nth_device (int n)
{
init_devices ();
return devices[n].decklink;
}
IDeckLinkInput *
gst_decklink_get_nth_input (int n)
{
init_devices ();
return devices[n].input;
}
IDeckLinkOutput *
gst_decklink_get_nth_output (int n)
{
init_devices ();
return devices[n].output;
}
IDeckLinkConfiguration *
gst_decklink_get_nth_config (int n)
{
init_devices ();
return devices[n].config;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
gst_element_register (plugin, "decklinksrc", GST_RANK_NONE,
gst_decklink_src_get_type ());
gst_element_register (plugin, "decklinksink", GST_RANK_NONE,
gst_decklink_sink_get_type ());
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
decklink,
"Blackmagic Decklink plugin",
plugin_init, VERSION, "LGPL", PACKAGE_NAME, GST_PACKAGE_ORIGIN)