| /* GStreamer |
| * Copyright (C) 2011 David Schleef <ds@schleef.org> |
| * Copyright (C) 2014 Sebastian Dröge <sebastian@centricular.com> |
| * Copyright (C) 2015 Florian Langlois <florian.langlois@fr.thalesgroup.com> |
| * |
| * 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 "gstdecklinkaudiosink.h" |
| #include "gstdecklinkvideosink.h" |
| #include "gstdecklinkaudiosrc.h" |
| #include "gstdecklinkvideosrc.h" |
| |
| GST_DEBUG_CATEGORY_STATIC (gst_decklink_debug); |
| #define GST_CAT_DEFAULT gst_decklink_debug |
| |
| GType |
| gst_decklink_mode_get_type (void) |
| { |
| static gsize id = 0; |
| static const GEnumValue modes[] = { |
| {GST_DECKLINK_MODE_AUTO, "auto", "Automatic detection"}, |
| |
| {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"}, |
| |
| {GST_DECKLINK_MODE_1556p2398, "1556p2398", "2k 23.98p"}, |
| {GST_DECKLINK_MODE_1556p24, "1556p24", "2k 24p"}, |
| {GST_DECKLINK_MODE_1556p25, "1556p25", "2k 25p"}, |
| |
| {GST_DECKLINK_MODE_2160p2398, "2160p2398", "4k 23.98p"}, |
| {GST_DECKLINK_MODE_2160p24, "2160p24", "4k 24p"}, |
| {GST_DECKLINK_MODE_2160p25, "2160p25", "4k 25p"}, |
| {GST_DECKLINK_MODE_2160p2997, "2160p2997", "4k 29.97p"}, |
| {GST_DECKLINK_MODE_2160p30, "2160p30", "4k 30p"}, |
| {GST_DECKLINK_MODE_2160p50, "2160p50", "4k 50p"}, |
| {GST_DECKLINK_MODE_2160p5994, "2160p5994", "4k 59.94p"}, |
| {GST_DECKLINK_MODE_2160p60, "2160p60", "4k 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; |
| } |
| |
| GType |
| gst_decklink_connection_get_type (void) |
| { |
| static gsize id = 0; |
| static const GEnumValue connections[] = { |
| {GST_DECKLINK_CONNECTION_AUTO, "auto", "Auto"}, |
| {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); |
| } |
| |
| return (GType) id; |
| } |
| |
| 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"}, |
| {GST_DECKLINK_AUDIO_CONNECTION_ANALOG_XLR, "analog-xlr", |
| "Analog input (XLR)"}, |
| {GST_DECKLINK_AUDIO_CONNECTION_ANALOG_RCA, "analog-rca", |
| "Analog input (RCA)"}, |
| {0, NULL, NULL} |
| }; |
| |
| if (g_once_init_enter (&id)) { |
| GType tmp = |
| g_enum_register_static ("GstDecklinkAudioConnection", connections); |
| g_once_init_leave (&id, tmp); |
| } |
| |
| return (GType) id; |
| } |
| |
| #define NTSC 10, 11, false, "bt601" |
| #define PAL 12, 11, true, "bt601" |
| #define HD 1, 1, false, "bt709" |
| #define UHD 1, 1, false, "bt2020" |
| |
| static const GstDecklinkMode modes[] = { |
| {bmdModeNTSC, 720, 486, 30000, 1001, true, NTSC}, // default is ntsc |
| |
| {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, 60000, 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}, |
| |
| {bmdMode2k2398, 2048, 1556, 24000, 1001, false, HD}, |
| {bmdMode2k24, 2048, 1556, 24, 1, false, HD}, |
| {bmdMode2k25, 2048, 1556, 25, 1, false, HD}, |
| |
| {bmdMode4K2160p2398, 3840, 2160, 24000, 1001, false, UHD}, |
| {bmdMode4K2160p24, 3840, 2160, 24, 1, false, UHD}, |
| {bmdMode4K2160p25, 3840, 2160, 25, 1, false, UHD}, |
| {bmdMode4K2160p2997, 3840, 2160, 30000, 1001, false, UHD}, |
| {bmdMode4K2160p30, 3840, 2160, 30, 1, false, UHD}, |
| {bmdMode4K2160p50, 3840, 2160, 50, 1, false, UHD}, |
| {bmdMode4K2160p5994, 3840, 2160, 60000, 1001, false, UHD}, |
| {bmdMode4K2160p60, 3840, 2160, 60, 1, false, UHD} |
| }; |
| |
| const GstDecklinkMode * |
| gst_decklink_get_mode (GstDecklinkModeEnum e) |
| { |
| if (e < GST_DECKLINK_MODE_AUTO || e > GST_DECKLINK_MODE_2160p60) |
| return NULL; |
| return &modes[e]; |
| } |
| |
| const GstDecklinkModeEnum |
| gst_decklink_get_mode_enum_from_bmd (BMDDisplayMode mode) |
| { |
| GstDecklinkModeEnum displayMode = GST_DECKLINK_MODE_NTSC; |
| switch (mode) { |
| case bmdModeNTSC: |
| displayMode = GST_DECKLINK_MODE_NTSC; |
| break; |
| case bmdModeNTSC2398: |
| displayMode = GST_DECKLINK_MODE_NTSC2398; |
| break; |
| case bmdModePAL: |
| displayMode = GST_DECKLINK_MODE_PAL; |
| break; |
| case bmdModeNTSCp: |
| displayMode = GST_DECKLINK_MODE_NTSC_P; |
| break; |
| case bmdModePALp: |
| displayMode = GST_DECKLINK_MODE_PAL_P; |
| break; |
| case bmdModeHD1080p2398: |
| displayMode = GST_DECKLINK_MODE_1080p2398; |
| break; |
| case bmdModeHD1080p24: |
| displayMode = GST_DECKLINK_MODE_1080p24; |
| break; |
| case bmdModeHD1080p25: |
| displayMode = GST_DECKLINK_MODE_1080p25; |
| break; |
| case bmdModeHD1080p2997: |
| displayMode = GST_DECKLINK_MODE_1080p2997; |
| break; |
| case bmdModeHD1080p30: |
| displayMode = GST_DECKLINK_MODE_1080p30; |
| break; |
| case bmdModeHD1080i50: |
| displayMode = GST_DECKLINK_MODE_1080i50; |
| break; |
| case bmdModeHD1080i5994: |
| displayMode = GST_DECKLINK_MODE_1080i5994; |
| break; |
| case bmdModeHD1080i6000: |
| displayMode = GST_DECKLINK_MODE_1080i60; |
| break; |
| case bmdModeHD1080p50: |
| displayMode = GST_DECKLINK_MODE_1080p50; |
| break; |
| case bmdModeHD1080p5994: |
| displayMode = GST_DECKLINK_MODE_1080p5994; |
| break; |
| case bmdModeHD1080p6000: |
| displayMode = GST_DECKLINK_MODE_1080p60; |
| break; |
| case bmdModeHD720p50: |
| displayMode = GST_DECKLINK_MODE_720p50; |
| break; |
| case bmdModeHD720p5994: |
| displayMode = GST_DECKLINK_MODE_720p5994; |
| break; |
| case bmdModeHD720p60: |
| displayMode = GST_DECKLINK_MODE_720p60; |
| break; |
| case bmdMode2k2398: |
| displayMode = GST_DECKLINK_MODE_1556p2398; |
| break; |
| case bmdMode2k24: |
| displayMode = GST_DECKLINK_MODE_1556p24; |
| break; |
| case bmdMode2k25: |
| displayMode = GST_DECKLINK_MODE_1556p25; |
| break; |
| case bmdMode4K2160p2398: |
| displayMode = GST_DECKLINK_MODE_2160p2398; |
| break; |
| case bmdMode4K2160p24: |
| displayMode = GST_DECKLINK_MODE_2160p24; |
| break; |
| case bmdMode4K2160p25: |
| displayMode = GST_DECKLINK_MODE_2160p25; |
| break; |
| case bmdMode4K2160p2997: |
| displayMode = GST_DECKLINK_MODE_2160p2997; |
| break; |
| case bmdMode4K2160p30: |
| displayMode = GST_DECKLINK_MODE_2160p30; |
| break; |
| case bmdMode4K2160p50: |
| displayMode = GST_DECKLINK_MODE_2160p50; |
| break; |
| case bmdMode4K2160p5994: |
| displayMode = GST_DECKLINK_MODE_2160p5994; |
| break; |
| case bmdMode4K2160p60: |
| displayMode = GST_DECKLINK_MODE_2160p60; |
| break; |
| default: |
| g_assert_not_reached (); |
| break; |
| } |
| return displayMode; |
| } |
| |
| static const BMDVideoConnection connections[] = { |
| 0, /* auto */ |
| bmdVideoConnectionSDI, |
| bmdVideoConnectionHDMI, |
| bmdVideoConnectionOpticalSDI, |
| bmdVideoConnectionComponent, |
| bmdVideoConnectionComposite, |
| bmdVideoConnectionSVideo |
| }; |
| |
| const BMDVideoConnection |
| gst_decklink_get_connection (GstDecklinkConnectionEnum e) |
| { |
| g_return_val_if_fail (e != GST_DECKLINK_CONNECTION_AUTO, |
| bmdVideoConnectionSDI); |
| |
| if (e <= GST_DECKLINK_CONNECTION_AUTO || e > GST_DECKLINK_CONNECTION_SVIDEO) |
| e = GST_DECKLINK_CONNECTION_SDI; |
| |
| return connections[e]; |
| } |
| |
| static GstStructure * |
| gst_decklink_mode_get_structure (GstDecklinkModeEnum e) |
| { |
| const GstDecklinkMode *mode = &modes[e]; |
| |
| return gst_structure_new ("video/x-raw", |
| "format", G_TYPE_STRING, "UYVY", |
| "width", G_TYPE_INT, mode->width, |
| "height", G_TYPE_INT, mode->height, |
| "framerate", GST_TYPE_FRACTION, mode->fps_n, mode->fps_d, |
| "interlace-mode", G_TYPE_STRING, |
| mode->interlaced ? "interleaved" : "progressive", "pixel-aspect-ratio", |
| GST_TYPE_FRACTION, mode->par_n, mode->par_d, "colorimetry", G_TYPE_STRING, |
| mode->colorimetry, "chroma-site", G_TYPE_STRING, "mpeg2", NULL); |
| } |
| |
| 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 (); |
| for (i = 1; i < (int) G_N_ELEMENTS (modes); i++) { |
| s = gst_decklink_mode_get_structure ((GstDecklinkModeEnum) i); |
| gst_caps_append_structure (caps, s); |
| } |
| |
| return caps; |
| } |
| |
| const GstDecklinkMode * |
| gst_decklink_find_mode_for_caps (GstCaps * caps) |
| { |
| int i; |
| GstCaps *mode_caps; |
| |
| for (i = 1; i < (int) G_N_ELEMENTS (modes); i++) { |
| mode_caps = gst_decklink_mode_get_caps ((GstDecklinkModeEnum) i); |
| if (gst_caps_can_intersect (caps, mode_caps)) { |
| gst_caps_unref (mode_caps); |
| return gst_decklink_get_mode ((GstDecklinkModeEnum) i); |
| } |
| gst_caps_unref (mode_caps); |
| } |
| |
| return NULL; |
| } |
| |
| #define GST_TYPE_DECKLINK_CLOCK \ |
| (gst_decklink_clock_get_type()) |
| #define GST_DECKLINK_CLOCK(obj) \ |
| (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DECKLINK_CLOCK,GstDecklinkClock)) |
| #define GST_DECKLINK_CLOCK_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DECKLINK_CLOCK,GstDecklinkClockClass)) |
| #define GST_IS_Decklink_CLOCK(obj) \ |
| (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DECKLINK_CLOCK)) |
| #define GST_IS_Decklink_CLOCK_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DECKLINK_CLOCK)) |
| #define GST_DECKLINK_CLOCK_CAST(obj) \ |
| ((GstDecklinkClock*)(obj)) |
| |
| typedef struct _GstDecklinkClock GstDecklinkClock; |
| typedef struct _GstDecklinkClockClass GstDecklinkClockClass; |
| |
| struct _GstDecklinkClock |
| { |
| GstSystemClock clock; |
| |
| GstDecklinkInput *input; |
| GstDecklinkOutput *output; |
| }; |
| |
| struct _GstDecklinkClockClass |
| { |
| GstSystemClockClass parent_class; |
| }; |
| |
| GType gst_decklink_clock_get_type (void); |
| static GstClock *gst_decklink_clock_new (const gchar * name); |
| |
| typedef struct _Device Device; |
| struct _Device |
| { |
| GstDecklinkOutput output; |
| GstDecklinkInput input; |
| }; |
| |
| class GStreamerDecklinkInputCallback:public IDeckLinkInputCallback |
| { |
| private: |
| GstDecklinkInput * m_input; |
| GMutex m_mutex; |
| gint m_refcount; |
| public: |
| GStreamerDecklinkInputCallback (GstDecklinkInput * input) |
| : IDeckLinkInputCallback (), m_refcount (1) |
| { |
| m_input = input; |
| g_mutex_init (&m_mutex); |
| } |
| |
| virtual ~ GStreamerDecklinkInputCallback () |
| { |
| g_mutex_clear (&m_mutex); |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE QueryInterface (REFIID, LPVOID *) |
| { |
| return E_NOINTERFACE; |
| } |
| |
| virtual ULONG STDMETHODCALLTYPE AddRef (void) |
| { |
| ULONG ret; |
| |
| g_mutex_lock (&m_mutex); |
| m_refcount++; |
| ret = m_refcount; |
| g_mutex_unlock (&m_mutex); |
| |
| return ret; |
| } |
| |
| virtual ULONG STDMETHODCALLTYPE Release (void) |
| { |
| ULONG ret; |
| |
| g_mutex_lock (&m_mutex); |
| m_refcount--; |
| ret = m_refcount; |
| g_mutex_unlock (&m_mutex); |
| |
| |
| if (ret == 0) { |
| delete this; |
| } |
| |
| return ret; |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE |
| VideoInputFormatChanged (BMDVideoInputFormatChangedEvents, |
| IDeckLinkDisplayMode * mode, BMDDetectedVideoInputFormatFlags) |
| { |
| GST_INFO ("Video input format changed"); |
| |
| g_mutex_lock (&m_input->lock); |
| m_input->input->PauseStreams (); |
| m_input->input->EnableVideoInput (mode->GetDisplayMode (), |
| bmdFormat8BitYUV, bmdVideoInputEnableFormatDetection); |
| m_input->input->FlushStreams (); |
| m_input->input->StartStreams (); |
| m_input->mode = |
| gst_decklink_get_mode (gst_decklink_get_mode_enum_from_bmd |
| (mode->GetDisplayMode ())); |
| g_mutex_unlock (&m_input->lock); |
| |
| return S_OK; |
| } |
| |
| virtual HRESULT STDMETHODCALLTYPE |
| VideoInputFrameArrived (IDeckLinkVideoInputFrame * video_frame, |
| IDeckLinkAudioInputPacket * audio_packet) |
| { |
| GstElement *videosrc = NULL, *audiosrc = NULL; |
| void (*got_video_frame) (GstElement * videosrc, |
| IDeckLinkVideoInputFrame * frame, GstDecklinkModeEnum mode, |
| GstClockTime capture_time, GstClockTime capture_duration) = NULL; |
| void (*got_audio_packet) (GstElement * videosrc, |
| IDeckLinkAudioInputPacket * packet, GstClockTime capture_time) = NULL; |
| GstDecklinkModeEnum mode; |
| BMDTimeValue capture_time, capture_duration; |
| HRESULT res; |
| |
| res = |
| video_frame->GetHardwareReferenceTimestamp (GST_SECOND, &capture_time, |
| &capture_duration); |
| if (res != S_OK) { |
| GST_ERROR ("Failed to get capture time: 0x%08x", res); |
| capture_time = GST_CLOCK_TIME_NONE; |
| capture_duration = GST_CLOCK_TIME_NONE; |
| } |
| |
| g_mutex_lock (&m_input->lock); |
| |
| if (capture_time > (BMDTimeValue) m_input->clock_start_time) |
| capture_time -= m_input->clock_start_time; |
| else |
| capture_time = 0; |
| |
| if (capture_time > (BMDTimeValue) m_input->clock_offset) |
| capture_time -= m_input->clock_offset; |
| else |
| capture_time = 0; |
| |
| if (m_input->videosrc) { |
| videosrc = GST_ELEMENT_CAST (gst_object_ref (m_input->videosrc)); |
| got_video_frame = m_input->got_video_frame; |
| } |
| mode = gst_decklink_get_mode_enum_from_bmd (m_input->mode->mode); |
| |
| if (m_input->audiosrc) { |
| audiosrc = GST_ELEMENT_CAST (gst_object_ref (m_input->audiosrc)); |
| got_audio_packet = m_input->got_audio_packet; |
| } |
| g_mutex_unlock (&m_input->lock); |
| |
| if (got_video_frame && videosrc) { |
| got_video_frame (videosrc, video_frame, mode, capture_time, |
| capture_duration); |
| } |
| |
| if (got_audio_packet && audiosrc) { |
| m_input->got_audio_packet (audiosrc, audio_packet, capture_time); |
| } |
| |
| gst_object_replace ((GstObject **) & videosrc, NULL); |
| gst_object_replace ((GstObject **) & audiosrc, NULL); |
| |
| return S_OK; |
| } |
| }; |
| |
| #ifdef _MSC_VER |
| /* FIXME: We currently never deinit this */ |
| |
| static GMutex com_init_lock; |
| static GMutex com_deinit_lock; |
| static GCond com_init_cond; |
| static GCond com_deinit_cond; |
| static GCond com_deinited_cond; |
| static gboolean com_initialized = FALSE; |
| |
| /* COM initialization/uninitialization thread */ |
| static gpointer |
| gst_decklink_com_thread (gpointer data) |
| { |
| HRESULT res; |
| |
| g_mutex_lock (&com_init_lock); |
| |
| /* Initialize COM with a MTA for this process. This thread will |
| * be the first one to enter the apartement and the last one to leave |
| * it, unitializing COM properly */ |
| |
| res = CoInitializeEx (0, COINIT_MULTITHREADED); |
| if (res == S_FALSE) |
| GST_WARNING ("COM has been already initialized in the same process"); |
| else if (res == RPC_E_CHANGED_MODE) |
| GST_WARNING ("The concurrency model of COM has changed."); |
| else |
| GST_INFO ("COM intialized succesfully"); |
| |
| com_initialized = TRUE; |
| |
| /* Signal other threads waiting on this condition that COM was initialized */ |
| g_cond_signal (&com_init_cond); |
| |
| g_mutex_unlock (&com_init_lock); |
| |
| /* Wait until the unitialize condition is met to leave the COM apartement */ |
| g_mutex_lock (&com_deinit_lock); |
| g_cond_wait (&com_deinit_cond, &com_deinit_lock); |
| |
| CoUninitialize (); |
| GST_INFO ("COM unintialized succesfully"); |
| com_initialized = FALSE; |
| g_cond_signal (&com_deinited_cond); |
| g_mutex_unlock (&com_deinit_lock); |
| |
| return NULL; |
| } |
| #endif /* _MSC_VER */ |
| |
| static GOnce devices_once = G_ONCE_INIT; |
| static int n_devices; |
| static Device devices[10]; |
| |
| static gpointer |
| init_devices (gpointer data) |
| { |
| IDeckLinkIterator *iterator; |
| IDeckLink *decklink = NULL; |
| HRESULT ret; |
| int i; |
| |
| #ifdef _MSC_VER |
| // Start COM thread for Windows |
| |
| g_mutex_lock (&com_init_lock); |
| |
| /* create the COM initialization thread */ |
| g_thread_create ((GThreadFunc) gst_decklink_com_thread, NULL, FALSE, NULL); |
| |
| /* wait until the COM thread signals that COM has been initialized */ |
| g_cond_wait (&com_init_cond, &com_init_lock); |
| g_mutex_unlock (&com_init_lock); |
| #endif /* _MSC_VER */ |
| |
| iterator = CreateDeckLinkIteratorInstance (); |
| if (iterator == NULL) { |
| GST_ERROR ("no driver"); |
| return NULL; |
| } |
| |
| i = 0; |
| ret = iterator->Next (&decklink); |
| while (ret == S_OK) { |
| ret = decklink->QueryInterface (IID_IDeckLinkInput, |
| (void **) &devices[i].input.input); |
| if (ret != S_OK) { |
| GST_WARNING ("selected device does not have input interface"); |
| } else { |
| devices[i].input.device = decklink; |
| devices[i].input.clock = gst_decklink_clock_new ("GstDecklinkInputClock"); |
| GST_DECKLINK_CLOCK_CAST (devices[i].input.clock)->input = |
| &devices[i].input; |
| devices[i].input. |
| input->SetCallback (new GStreamerDecklinkInputCallback (&devices[i]. |
| input)); |
| } |
| |
| ret = decklink->QueryInterface (IID_IDeckLinkOutput, |
| (void **) &devices[i].output.output); |
| if (ret != S_OK) { |
| GST_WARNING ("selected device does not have output interface"); |
| } else { |
| devices[i].output.device = decklink; |
| devices[i].output.clock = |
| gst_decklink_clock_new ("GstDecklinkOutputClock"); |
| GST_DECKLINK_CLOCK_CAST (devices[i].output.clock)->output = |
| &devices[i].output; |
| } |
| |
| ret = decklink->QueryInterface (IID_IDeckLinkConfiguration, |
| (void **) &devices[i].input.config); |
| if (ret != S_OK) { |
| GST_WARNING ("selected device does not have config interface"); |
| } |
| |
| ret = decklink->QueryInterface (IID_IDeckLinkAttributes, |
| (void **) &devices[i].input.attributes); |
| if (ret != S_OK) { |
| GST_WARNING ("selected device does not have attributes interface"); |
| } |
| |
| ret = iterator->Next (&decklink); |
| i++; |
| |
| if (i == 10) { |
| GST_WARNING ("this hardware has more then 10 devices"); |
| break; |
| } |
| } |
| |
| n_devices = i; |
| |
| iterator->Release (); |
| |
| return NULL; |
| } |
| |
| GstDecklinkOutput * |
| gst_decklink_acquire_nth_output (gint n, GstElement * sink, gboolean is_audio) |
| { |
| GstDecklinkOutput *output; |
| |
| g_once (&devices_once, init_devices, NULL); |
| |
| if (n >= n_devices) |
| return NULL; |
| |
| output = &devices[n].output; |
| if (!output->output) { |
| GST_ERROR ("Device %d has no output", n); |
| return NULL; |
| } |
| |
| g_mutex_lock (&output->lock); |
| if (is_audio && !output->audiosink) { |
| output->audiosink = GST_ELEMENT_CAST (gst_object_ref (sink)); |
| g_mutex_unlock (&output->lock); |
| return output; |
| } else if (!output->videosink) { |
| output->videosink = GST_ELEMENT_CAST (gst_object_ref (sink)); |
| g_mutex_unlock (&output->lock); |
| return output; |
| } |
| g_mutex_unlock (&output->lock); |
| |
| GST_ERROR ("Output device %d (audio: %d) in use already", n, is_audio); |
| return NULL; |
| } |
| |
| void |
| gst_decklink_release_nth_output (gint n, GstElement * sink, gboolean is_audio) |
| { |
| GstDecklinkOutput *output; |
| |
| if (n >= n_devices) |
| return; |
| |
| output = &devices[n].output; |
| g_assert (output->output); |
| |
| g_mutex_lock (&output->lock); |
| if (is_audio) { |
| g_assert (output->audiosink == sink); |
| gst_object_unref (sink); |
| output->audiosink = NULL; |
| } else { |
| g_assert (output->videosink == sink); |
| gst_object_unref (sink); |
| output->videosink = NULL; |
| } |
| g_mutex_unlock (&output->lock); |
| } |
| |
| void |
| gst_decklink_output_set_audio_clock (GstDecklinkOutput * output, |
| GstClock * clock) |
| { |
| g_mutex_lock (&output->lock); |
| if (output->audio_clock) |
| gst_object_unref (output->audio_clock); |
| output->audio_clock = clock; |
| if (clock) |
| gst_object_ref (clock); |
| g_mutex_unlock (&output->lock); |
| } |
| |
| |
| GstClock * |
| gst_decklink_output_get_audio_clock (GstDecklinkOutput * output) |
| { |
| GstClock *ret = NULL; |
| |
| g_mutex_lock (&output->lock); |
| if (output->audio_clock) |
| ret = GST_CLOCK_CAST (gst_object_ref (output->audio_clock)); |
| g_mutex_unlock (&output->lock); |
| |
| return ret; |
| } |
| |
| GstDecklinkInput * |
| gst_decklink_acquire_nth_input (gint n, GstElement * src, gboolean is_audio) |
| { |
| GstDecklinkInput *input; |
| |
| g_once (&devices_once, init_devices, NULL); |
| |
| if (n >= n_devices) |
| return NULL; |
| |
| input = &devices[n].input; |
| if (!input->input) { |
| GST_ERROR ("Device %d has no input", n); |
| return NULL; |
| } |
| |
| g_mutex_lock (&input->lock); |
| if (is_audio && !input->audiosrc) { |
| input->audiosrc = GST_ELEMENT_CAST (gst_object_ref (src)); |
| g_mutex_unlock (&input->lock); |
| return input; |
| } else if (!input->videosrc) { |
| input->videosrc = GST_ELEMENT_CAST (gst_object_ref (src)); |
| g_mutex_unlock (&input->lock); |
| return input; |
| } |
| g_mutex_unlock (&input->lock); |
| |
| GST_ERROR ("Input device %d (audio: %d) in use already", n, is_audio); |
| return NULL; |
| } |
| |
| void |
| gst_decklink_release_nth_input (gint n, GstElement * src, gboolean is_audio) |
| { |
| GstDecklinkInput *input; |
| |
| if (n >= n_devices) |
| return; |
| |
| input = &devices[n].input; |
| g_assert (input->input); |
| |
| g_mutex_lock (&input->lock); |
| if (is_audio) { |
| g_assert (input->audiosrc == src); |
| gst_object_unref (src); |
| input->audiosrc = NULL; |
| } else { |
| g_assert (input->videosrc == src); |
| gst_object_unref (src); |
| input->videosrc = NULL; |
| } |
| g_mutex_unlock (&input->lock); |
| } |
| |
| G_DEFINE_TYPE (GstDecklinkClock, gst_decklink_clock, GST_TYPE_SYSTEM_CLOCK); |
| |
| static GstClockTime gst_decklink_clock_get_internal_time (GstClock * clock); |
| |
| static void |
| gst_decklink_clock_class_init (GstDecklinkClockClass * klass) |
| { |
| GstClockClass *clock_class = (GstClockClass *) klass; |
| |
| clock_class->get_internal_time = gst_decklink_clock_get_internal_time; |
| } |
| |
| static void |
| gst_decklink_clock_init (GstDecklinkClock * clock) |
| { |
| GST_OBJECT_FLAG_SET (clock, GST_CLOCK_FLAG_CAN_SET_MASTER); |
| } |
| |
| static GstClock * |
| gst_decklink_clock_new (const gchar * name) |
| { |
| GstDecklinkClock *self = |
| GST_DECKLINK_CLOCK (g_object_new (GST_TYPE_DECKLINK_CLOCK, "name", name, |
| "clock-type", GST_CLOCK_TYPE_OTHER, NULL)); |
| |
| return GST_CLOCK_CAST (self); |
| } |
| |
| static GstClockTime |
| gst_decklink_clock_get_internal_time (GstClock * clock) |
| { |
| GstDecklinkClock *self = GST_DECKLINK_CLOCK (clock); |
| GstClockTime result, start_time, last_time; |
| GstClockTimeDiff offset; |
| BMDTimeValue time; |
| HRESULT ret; |
| |
| if (self->input != NULL) { |
| g_mutex_lock (&self->input->lock); |
| start_time = self->input->clock_start_time; |
| offset = self->input->clock_offset; |
| last_time = self->input->clock_last_time; |
| time = -1; |
| if (!self->input->started) { |
| result = last_time; |
| ret = -1; |
| } else { |
| ret = |
| self->input->input->GetHardwareReferenceClock (GST_SECOND, &time, |
| NULL, NULL); |
| if (ret == S_OK && time >= 0) { |
| result = time; |
| if (start_time == GST_CLOCK_TIME_NONE) |
| start_time = self->input->clock_start_time = result; |
| |
| if (result > start_time) |
| result -= start_time; |
| else |
| result = 0; |
| |
| if (self->input->clock_restart) { |
| self->input->clock_offset = result - last_time; |
| offset = self->input->clock_offset; |
| self->input->clock_restart = FALSE; |
| } |
| result = MAX (last_time, result); |
| result -= offset; |
| result = MAX (last_time, result); |
| } else { |
| result = last_time; |
| } |
| |
| self->input->clock_last_time = result; |
| } |
| result += self->input->clock_epoch; |
| g_mutex_unlock (&self->input->lock); |
| } else if (self->output != NULL) { |
| g_mutex_lock (&self->output->lock); |
| start_time = self->output->clock_start_time; |
| offset = self->output->clock_offset; |
| last_time = self->output->clock_last_time; |
| time = -1; |
| if (!self->output->started) { |
| result = last_time; |
| ret = -1; |
| } else { |
| ret = |
| self->output->output->GetHardwareReferenceClock (GST_SECOND, &time, |
| NULL, NULL); |
| if (ret == S_OK && time >= 0) { |
| result = time; |
| |
| if (start_time == GST_CLOCK_TIME_NONE) |
| start_time = self->output->clock_start_time = result; |
| |
| if (result > start_time) |
| result -= start_time; |
| else |
| result = 0; |
| |
| if (self->output->clock_restart) { |
| self->output->clock_offset = result - last_time; |
| offset = self->output->clock_offset; |
| self->output->clock_restart = FALSE; |
| } |
| result = MAX (last_time, result); |
| result -= offset; |
| result = MAX (last_time, result); |
| } else { |
| result = last_time; |
| } |
| |
| self->output->clock_last_time = result; |
| } |
| result += self->output->clock_epoch; |
| g_mutex_unlock (&self->output->lock); |
| } else { |
| g_assert_not_reached (); |
| } |
| GST_LOG_OBJECT (clock, |
| "result %" GST_TIME_FORMAT " time %" GST_TIME_FORMAT " last time %" |
| GST_TIME_FORMAT " offset %" GST_TIME_FORMAT " start time %" |
| GST_TIME_FORMAT " (ret: 0x%08x)", GST_TIME_ARGS (result), |
| GST_TIME_ARGS (time), GST_TIME_ARGS (last_time), GST_TIME_ARGS (offset), |
| GST_TIME_ARGS (start_time), ret); |
| |
| return result; |
| } |
| |
| static gboolean |
| plugin_init (GstPlugin * plugin) |
| { |
| GST_DEBUG_CATEGORY_INIT (gst_decklink_debug, "decklink", 0, |
| "debug category for decklink plugin"); |
| |
| gst_element_register (plugin, "decklinkaudiosink", GST_RANK_NONE, |
| GST_TYPE_DECKLINK_AUDIO_SINK); |
| gst_element_register (plugin, "decklinkvideosink", GST_RANK_NONE, |
| GST_TYPE_DECKLINK_VIDEO_SINK); |
| gst_element_register (plugin, "decklinkaudiosrc", GST_RANK_NONE, |
| GST_TYPE_DECKLINK_AUDIO_SRC); |
| gst_element_register (plugin, "decklinkvideosrc", GST_RANK_NONE, |
| GST_TYPE_DECKLINK_VIDEO_SRC); |
| return TRUE; |
| } |
| |
| GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, |
| GST_VERSION_MINOR, |
| decklink, |
| "Blackmagic Decklink plugin", |
| plugin_init, VERSION, "LGPL", PACKAGE_NAME, GST_PACKAGE_ORIGIN) |