mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1768 lines
59 KiB
C++
1768 lines
59 KiB
C++
/* GStreamer
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* Copyright (C) 2011 David Schleef <ds@entropywave.com>
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* Copyright (C) 2014 Sebastian Dröge <sebastian@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
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* Boston, MA 02110-1335, USA.
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*/
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/**
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* SECTION:element-decklinkvideosink
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* @short_description: Outputs Video to a BlackMagic DeckLink Device
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*
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* Playout Video to a BlackMagic DeckLink Device.
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*
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* ## Sample pipeline
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* |[
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* gst-launch-1.0 \
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* videotestsrc ! \
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* decklinkvideosink device-number=0 mode=1080p25
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* ]|
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* Playout a 1080p25 test-video to the SDI-Out of Card 0. Devices are numbered
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* starting with 0.
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*
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* # Duplex-Mode:
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* Certain DechLink Cards like the Duo2 or the Quad2 contain two or four
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* independant SDI units with two connectors each. These units can operate either
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* in half- or in full-duplex mode.
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*
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* The Duplex-Mode of a Card can be configured using the `duplex-mode`-Property.
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* Cards that to not support Duplex-Modes are not influenced by the property.
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*
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* ## Half-Duplex-Mode (default):
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* By default decklinkvideosink will configure them into half-duplex mode, so that
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* each connector acts as if it were an independant DeckLink Card which can either
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* be used as an Input or as an Output. In this mode the Duo2 can be used as as 4 SDI
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* In-/Outputs and the Quad2 as 8 SDI In-/Outputs.
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*
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* |[
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* gst-launch-1.0 \
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* videotestsrc foreground-color=0x00ff0000 ! decklinkvideosink device-number=0 mode=1080p25 \
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* videotestsrc foreground-color=0x0000ff00 ! decklinkvideosink device-number=1 mode=1080p25 \
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* videotestsrc foreground-color=0x000000ff ! decklinkvideosink device-number=2 mode=1080p25 \
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* videotestsrc foreground-color=0x00ffffff ! decklinkvideosink device-number=3 mode=1080p25
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* ]|
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* Playout four Test-Screen with colored Snow on the first four units in the System
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* (ie. the Connectors 1-4 of a Duo2 unit).
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*
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* |[
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* gst-launch-1.0 \
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* videotestsrc is-live=true foreground-color=0x0000ff00 ! decklinkvideosink device-number=0 mode=1080p25 \
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* decklinkvideosrc device-number=1 mode=1080p25 ! autovideosink \
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* decklinkvideosrc device-number=2 mode=1080p25 ! autovideosink \
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* videotestsrc is-live=true foreground-color=0x00ff0000 ! decklinkvideosink device-number=3 mode=1080p25
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* ]|
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* Capture 1080p25 from the second and third unit in the System,
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* Playout a Test-Screen with colored Snow on the first and fourth unit
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* (ie. the Connectors 1-4 of a Duo2 unit).
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*
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* ## Device-Number-Mapping in Half-Duplex-Mode
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* The device-number to connector-mapping is as follows for the Duo2
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* - `device-number=0` SDI1
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* - `device-number=1` SDI3
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* - `device-number=2` SDI2
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* - `device-number=3` SDI4
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*
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* And for the Quad2
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* - `device-number=0` SDI1
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* - `device-number=1` SDI3
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* - `device-number=2` SDI5
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* - `device-number=3` SDI7
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* - `device-number=4` SDI2
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* - `device-number=5` SDI4
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* - `device-number=6` SDI6
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* - `device-number=7` SDI8
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*
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* ## Full-Duplex-Mode:
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* When operating in full-duplex mode, two connectors of a unit are combined to
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* a single device, performing keying with the second connection.
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*
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* ## Device-Number-Mapping in Full-Duplex-Mode
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* The device-number to connector-mapping in full-duplex-mode is as follows for the Duo2
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* - `device-number=0` SDI1 primary, SDI2 secondary
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* - `device-number=1` SDI3 primaty, SDI4 secondary
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*
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* And for the Quad2
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* - `device-number=0` SDI1 primary, SDI2 secondary
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* - `device-number=1` SDI3 primaty, SDI4 secondary
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* - `device-number=2` SDI5 primary, SDI6 secondary
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* - `device-number=3` SDI7 primary, SDI8 secondary
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*
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* # Keying
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* Keying is the process of overlaing Video with an Alpha-Channel on top of an
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* existing Video-Stream. The Duo2 and Quad2-Cards can perform two different
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* Keying-Modes when operated in full-duplex mode. Both modes expect Video with
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* an Alpha-Channel.
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*
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* ## Internal Keyer:
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* In internal Keying-Mode the primary port becomes an Input and the secondary port
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* an Output. The unit overlays Video played back from the Computer onto the Input
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* and outputs the combined Video-Stream to the Output.
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*
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* |[
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* gst-launch-1.0 \
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* videotestsrc foreground-color=0x00000000 background-color=0x00000000 ! \
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* video/x-raw,format=BGRA,width=1920,height=1080 ! \
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* decklinkvideosink device-number=0 duplex-mode=full keyer-mode=internal video-format=8bit-bgra mode=1080p25
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* ]|
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*
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* ## External Keyer:
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* In external Keying-Mode the primary port outputs the alpha-chanel as the
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* luma-value (key-channel). Transparent pixels are black, opaque pixels are white.
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* The RGB-Component of the Video are output on the secondary channel.
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*
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* |[
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* gst-launch-1.0 \
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* videotestsrc foreground-color=0x00000000 background-color=0x00000000 ! \
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* video/x-raw,format=BGRA,width=1920,height=1080 ! \
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* decklinkvideosink device-number=0 duplex-mode=full keyer-mode=external video-format=8bit-bgra mode=1080p25
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* ]|
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstdecklinkvideosink.h"
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#include <string.h>
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GST_DEBUG_CATEGORY_STATIC (gst_decklink_video_sink_debug);
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#define GST_CAT_DEFAULT gst_decklink_video_sink_debug
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class GStreamerVideoOutputCallback:public IDeckLinkVideoOutputCallback
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{
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public:
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GStreamerVideoOutputCallback (GstDecklinkVideoSink * sink)
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:IDeckLinkVideoOutputCallback (), m_refcount (1)
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{
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m_sink = GST_DECKLINK_VIDEO_SINK_CAST (gst_object_ref (sink));
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g_mutex_init (&m_mutex);
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}
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virtual HRESULT WINAPI QueryInterface (REFIID, LPVOID *)
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{
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return E_NOINTERFACE;
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}
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virtual ULONG WINAPI AddRef (void)
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{
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ULONG ret;
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g_mutex_lock (&m_mutex);
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m_refcount++;
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ret = m_refcount;
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g_mutex_unlock (&m_mutex);
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return ret;
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}
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virtual ULONG WINAPI Release (void)
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{
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ULONG ret;
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g_mutex_lock (&m_mutex);
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m_refcount--;
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ret = m_refcount;
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g_mutex_unlock (&m_mutex);
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if (ret == 0) {
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delete this;
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}
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return ret;
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}
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virtual HRESULT WINAPI ScheduledFrameCompleted (IDeckLinkVideoFrame *
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completedFrame, BMDOutputFrameCompletionResult result)
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{
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switch (result) {
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case bmdOutputFrameCompleted:
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GST_LOG_OBJECT (m_sink, "Completed frame %p", completedFrame);
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break;
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case bmdOutputFrameDisplayedLate:
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GST_INFO_OBJECT (m_sink, "Late Frame %p", completedFrame);
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break;
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case bmdOutputFrameDropped:
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GST_INFO_OBJECT (m_sink, "Dropped Frame %p", completedFrame);
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break;
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case bmdOutputFrameFlushed:
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GST_DEBUG_OBJECT (m_sink, "Flushed Frame %p", completedFrame);
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break;
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default:
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GST_INFO_OBJECT (m_sink, "Unknown Frame %p: %d", completedFrame,
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(gint) result);
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break;
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}
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return S_OK;
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}
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virtual HRESULT WINAPI ScheduledPlaybackHasStopped (void)
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{
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GST_LOG_OBJECT (m_sink, "Scheduled playback stopped");
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if (m_sink->output) {
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g_mutex_lock (&m_sink->output->lock);
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g_cond_signal (&m_sink->output->cond);
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g_mutex_unlock (&m_sink->output->lock);
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}
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return S_OK;
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}
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virtual ~ GStreamerVideoOutputCallback () {
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gst_object_unref (m_sink);
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g_mutex_clear (&m_mutex);
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}
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private:
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GstDecklinkVideoSink * m_sink;
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GMutex m_mutex;
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gint m_refcount;
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};
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enum
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{
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PROP_0,
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PROP_MODE,
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PROP_DEVICE_NUMBER,
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PROP_VIDEO_FORMAT,
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PROP_DUPLEX_MODE,
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PROP_TIMECODE_FORMAT,
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PROP_KEYER_MODE,
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PROP_KEYER_LEVEL,
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PROP_HW_SERIAL_NUMBER,
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PROP_CC_LINE,
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PROP_AFD_BAR_LINE,
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};
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static void gst_decklink_video_sink_set_property (GObject * object,
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guint property_id, const GValue * value, GParamSpec * pspec);
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static void gst_decklink_video_sink_get_property (GObject * object,
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guint property_id, GValue * value, GParamSpec * pspec);
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static void gst_decklink_video_sink_finalize (GObject * object);
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static GstStateChangeReturn
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gst_decklink_video_sink_change_state (GstElement * element,
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GstStateChange transition);
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static GstClock *gst_decklink_video_sink_provide_clock (GstElement * element);
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static GstCaps *gst_decklink_video_sink_get_caps (GstBaseSink * bsink,
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GstCaps * filter);
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static gboolean gst_decklink_video_sink_set_caps (GstBaseSink * bsink,
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GstCaps * caps);
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static GstFlowReturn gst_decklink_video_sink_prepare (GstBaseSink * bsink,
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GstBuffer * buffer);
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static GstFlowReturn gst_decklink_video_sink_render (GstBaseSink * bsink,
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GstBuffer * buffer);
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static gboolean gst_decklink_video_sink_open (GstBaseSink * bsink);
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static gboolean gst_decklink_video_sink_close (GstBaseSink * bsink);
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static gboolean gst_decklink_video_sink_stop (GstDecklinkVideoSink * self);
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static gboolean gst_decklink_video_sink_propose_allocation (GstBaseSink * bsink,
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GstQuery * query);
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static gboolean gst_decklink_video_sink_event (GstBaseSink * bsink,
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GstEvent * event);
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static void
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gst_decklink_video_sink_start_scheduled_playback (GstElement * element);
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#define parent_class gst_decklink_video_sink_parent_class
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G_DEFINE_TYPE (GstDecklinkVideoSink, gst_decklink_video_sink,
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GST_TYPE_BASE_SINK);
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static gboolean
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reset_framerate (GstCapsFeatures * features, GstStructure * structure,
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gpointer user_data)
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{
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gst_structure_set (structure, "framerate", GST_TYPE_FRACTION_RANGE, 0, 1,
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G_MAXINT, 1, NULL);
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return TRUE;
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}
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static void
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gst_decklink_video_sink_class_init (GstDecklinkVideoSinkClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstBaseSinkClass *basesink_class = GST_BASE_SINK_CLASS (klass);
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GstCaps *templ_caps;
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gobject_class->set_property = gst_decklink_video_sink_set_property;
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gobject_class->get_property = gst_decklink_video_sink_get_property;
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gobject_class->finalize = gst_decklink_video_sink_finalize;
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element_class->change_state =
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GST_DEBUG_FUNCPTR (gst_decklink_video_sink_change_state);
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element_class->provide_clock =
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GST_DEBUG_FUNCPTR (gst_decklink_video_sink_provide_clock);
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basesink_class->get_caps =
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GST_DEBUG_FUNCPTR (gst_decklink_video_sink_get_caps);
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basesink_class->set_caps =
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GST_DEBUG_FUNCPTR (gst_decklink_video_sink_set_caps);
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basesink_class->prepare = GST_DEBUG_FUNCPTR (gst_decklink_video_sink_prepare);
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basesink_class->render = GST_DEBUG_FUNCPTR (gst_decklink_video_sink_render);
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// FIXME: These are misnamed in basesink!
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basesink_class->start = GST_DEBUG_FUNCPTR (gst_decklink_video_sink_open);
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basesink_class->stop = GST_DEBUG_FUNCPTR (gst_decklink_video_sink_close);
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basesink_class->propose_allocation =
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GST_DEBUG_FUNCPTR (gst_decklink_video_sink_propose_allocation);
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basesink_class->event = GST_DEBUG_FUNCPTR (gst_decklink_video_sink_event);
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g_object_class_install_property (gobject_class, PROP_MODE,
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g_param_spec_enum ("mode", "Playback Mode",
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"Video Mode to use for playback",
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GST_TYPE_DECKLINK_MODE, GST_DECKLINK_MODE_NTSC,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT)));
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g_object_class_install_property (gobject_class, PROP_DEVICE_NUMBER,
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g_param_spec_int ("device-number", "Device number",
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"Output device instance to use", 0, G_MAXINT, 0,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT)));
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g_object_class_install_property (gobject_class, PROP_VIDEO_FORMAT,
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g_param_spec_enum ("video-format", "Video format",
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"Video format type to use for playback",
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GST_TYPE_DECKLINK_VIDEO_FORMAT, GST_DECKLINK_VIDEO_FORMAT_8BIT_YUV,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT)));
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g_object_class_install_property (gobject_class, PROP_DUPLEX_MODE,
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g_param_spec_enum ("duplex-mode", "Duplex mode",
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"Certain DeckLink devices such as the DeckLink Quad 2 and the "
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"DeckLink Duo 2 support configuration of the duplex mode of "
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"individual sub-devices."
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"A sub-device configured as full-duplex will use two connectors, "
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"which allows simultaneous capture and playback, internal keying, "
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"and fill & key scenarios."
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"A half-duplex sub-device will use a single connector as an "
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"individual capture or playback channel.",
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GST_TYPE_DECKLINK_DUPLEX_MODE, GST_DECKLINK_DUPLEX_MODE_HALF,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT)));
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g_object_class_install_property (gobject_class, PROP_TIMECODE_FORMAT,
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g_param_spec_enum ("timecode-format", "Timecode format",
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"Timecode format type to use for playback",
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GST_TYPE_DECKLINK_TIMECODE_FORMAT,
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GST_DECKLINK_TIMECODE_FORMAT_RP188ANY,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT)));
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g_object_class_install_property (gobject_class, PROP_KEYER_MODE,
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g_param_spec_enum ("keyer-mode", "Keyer mode",
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"Keyer mode to be enabled",
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GST_TYPE_DECKLINK_KEYER_MODE,
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GST_DECKLINK_KEYER_MODE_OFF,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT)));
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g_object_class_install_property (gobject_class, PROP_KEYER_LEVEL,
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g_param_spec_int ("keyer-level", "Keyer level",
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"Keyer level", 0, 255, 255,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT)));
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g_object_class_install_property (gobject_class, PROP_HW_SERIAL_NUMBER,
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g_param_spec_string ("hw-serial-number", "Hardware serial number",
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"The serial number (hardware ID) of the Decklink card",
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NULL, (GParamFlags) (G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)));
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g_object_class_install_property (gobject_class, PROP_CC_LINE,
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g_param_spec_int ("cc-line", "CC Line",
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"Line number to use for inserting closed captions (0 = disabled)", 0,
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22, 0,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT)));
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g_object_class_install_property (gobject_class, PROP_AFD_BAR_LINE,
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g_param_spec_int ("afd-bar-line", "AFD/Bar Line",
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"Line number to use for inserting AFD/Bar data (0 = disabled)", 0,
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10000, 0,
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(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
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G_PARAM_CONSTRUCT)));
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templ_caps = gst_decklink_mode_get_template_caps (FALSE);
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templ_caps = gst_caps_make_writable (templ_caps);
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/* For output we support any framerate and only really care about timestamps */
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gst_caps_map_in_place (templ_caps, reset_framerate, NULL);
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gst_element_class_add_pad_template (element_class,
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gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, templ_caps));
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gst_caps_unref (templ_caps);
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gst_element_class_set_static_metadata (element_class, "Decklink Video Sink",
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"Video/Sink/Hardware", "Decklink Sink",
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"David Schleef <ds@entropywave.com>, "
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"Sebastian Dröge <sebastian@centricular.com>");
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GST_DEBUG_CATEGORY_INIT (gst_decklink_video_sink_debug, "decklinkvideosink",
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0, "debug category for decklinkvideosink element");
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}
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static void
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gst_decklink_video_sink_init (GstDecklinkVideoSink * self)
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{
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self->mode = GST_DECKLINK_MODE_NTSC;
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self->device_number = 0;
|
|
self->video_format = GST_DECKLINK_VIDEO_FORMAT_8BIT_YUV;
|
|
self->duplex_mode = bmdDuplexModeHalf;
|
|
/* VITC is legacy, we should expect RP188 in modern use cases */
|
|
self->timecode_format = bmdTimecodeRP188Any;
|
|
self->caption_line = 0;
|
|
self->afd_bar_line = 0;
|
|
|
|
gst_base_sink_set_max_lateness (GST_BASE_SINK_CAST (self), 20 * GST_MSECOND);
|
|
gst_base_sink_set_qos_enabled (GST_BASE_SINK_CAST (self), TRUE);
|
|
}
|
|
|
|
void
|
|
gst_decklink_video_sink_set_property (GObject * object, guint property_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (object);
|
|
|
|
switch (property_id) {
|
|
case PROP_MODE:
|
|
self->mode = (GstDecklinkModeEnum) g_value_get_enum (value);
|
|
break;
|
|
case PROP_DEVICE_NUMBER:
|
|
self->device_number = g_value_get_int (value);
|
|
break;
|
|
case PROP_VIDEO_FORMAT:
|
|
self->video_format = (GstDecklinkVideoFormat) g_value_get_enum (value);
|
|
switch (self->video_format) {
|
|
case GST_DECKLINK_VIDEO_FORMAT_AUTO:
|
|
case GST_DECKLINK_VIDEO_FORMAT_8BIT_YUV:
|
|
case GST_DECKLINK_VIDEO_FORMAT_10BIT_YUV:
|
|
case GST_DECKLINK_VIDEO_FORMAT_8BIT_ARGB:
|
|
case GST_DECKLINK_VIDEO_FORMAT_8BIT_BGRA:
|
|
break;
|
|
default:
|
|
GST_ELEMENT_WARNING (GST_ELEMENT (self), CORE, NOT_IMPLEMENTED,
|
|
("Format %d not supported", self->video_format), (NULL));
|
|
break;
|
|
}
|
|
break;
|
|
case PROP_DUPLEX_MODE:
|
|
self->duplex_mode =
|
|
gst_decklink_duplex_mode_from_enum ((GstDecklinkDuplexMode)
|
|
g_value_get_enum (value));
|
|
break;
|
|
case PROP_TIMECODE_FORMAT:
|
|
self->timecode_format =
|
|
gst_decklink_timecode_format_from_enum ((GstDecklinkTimecodeFormat)
|
|
g_value_get_enum (value));
|
|
break;
|
|
case PROP_KEYER_MODE:
|
|
self->keyer_mode =
|
|
gst_decklink_keyer_mode_from_enum ((GstDecklinkKeyerMode)
|
|
g_value_get_enum (value));
|
|
break;
|
|
case PROP_KEYER_LEVEL:
|
|
self->keyer_level = g_value_get_int (value);
|
|
break;
|
|
case PROP_CC_LINE:
|
|
self->caption_line = g_value_get_int (value);
|
|
break;
|
|
case PROP_AFD_BAR_LINE:
|
|
self->afd_bar_line = g_value_get_int (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
gst_decklink_video_sink_get_property (GObject * object, guint property_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (object);
|
|
|
|
switch (property_id) {
|
|
case PROP_MODE:
|
|
g_value_set_enum (value, self->mode);
|
|
break;
|
|
case PROP_DEVICE_NUMBER:
|
|
g_value_set_int (value, self->device_number);
|
|
break;
|
|
case PROP_VIDEO_FORMAT:
|
|
g_value_set_enum (value, self->video_format);
|
|
break;
|
|
case PROP_DUPLEX_MODE:
|
|
g_value_set_enum (value,
|
|
gst_decklink_duplex_mode_to_enum (self->duplex_mode));
|
|
break;
|
|
case PROP_TIMECODE_FORMAT:
|
|
g_value_set_enum (value,
|
|
gst_decklink_timecode_format_to_enum (self->timecode_format));
|
|
break;
|
|
case PROP_KEYER_MODE:
|
|
g_value_set_enum (value,
|
|
gst_decklink_keyer_mode_to_enum (self->keyer_mode));
|
|
break;
|
|
case PROP_KEYER_LEVEL:
|
|
g_value_set_int (value, self->keyer_level);
|
|
break;
|
|
case PROP_HW_SERIAL_NUMBER:
|
|
if (self->output)
|
|
g_value_set_string (value, self->output->hw_serial_number);
|
|
else
|
|
g_value_set_string (value, NULL);
|
|
break;
|
|
case PROP_CC_LINE:
|
|
g_value_set_int (value, self->caption_line);
|
|
break;
|
|
case PROP_AFD_BAR_LINE:
|
|
g_value_set_int (value, self->afd_bar_line);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
gst_decklink_video_sink_finalize (GObject * object)
|
|
{
|
|
//GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (object);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static gboolean
|
|
gst_decklink_video_sink_set_caps (GstBaseSink * bsink, GstCaps * caps)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (bsink);
|
|
const GstDecklinkMode *mode;
|
|
HRESULT ret;
|
|
BMDVideoOutputFlags flags;
|
|
GstVideoInfo info;
|
|
|
|
GST_DEBUG_OBJECT (self, "Setting caps %" GST_PTR_FORMAT, caps);
|
|
|
|
if (!gst_video_info_from_caps (&info, caps))
|
|
return FALSE;
|
|
|
|
|
|
g_mutex_lock (&self->output->lock);
|
|
if (self->output->video_enabled) {
|
|
if (self->info.finfo->format == info.finfo->format &&
|
|
self->info.width == info.width && self->info.height == info.height) {
|
|
// FIXME: We should also consider the framerate as it is used
|
|
// for mode selection below in auto mode
|
|
GST_DEBUG_OBJECT (self, "Nothing relevant has changed");
|
|
self->info = info;
|
|
g_mutex_unlock (&self->output->lock);
|
|
return TRUE;
|
|
} else {
|
|
GST_DEBUG_OBJECT (self, "Reconfiguration not supported at this point");
|
|
g_mutex_unlock (&self->output->lock);
|
|
return FALSE;
|
|
}
|
|
}
|
|
g_mutex_unlock (&self->output->lock);
|
|
|
|
self->output->output->SetScheduledFrameCompletionCallback (new
|
|
GStreamerVideoOutputCallback (self));
|
|
|
|
if (self->mode == GST_DECKLINK_MODE_AUTO) {
|
|
BMDPixelFormat f;
|
|
mode = gst_decklink_find_mode_and_format_for_caps (caps, &f);
|
|
if (mode == NULL) {
|
|
GST_WARNING_OBJECT (self,
|
|
"Failed to find compatible mode for caps %" GST_PTR_FORMAT, caps);
|
|
return FALSE;
|
|
}
|
|
if (self->video_format != GST_DECKLINK_VIDEO_FORMAT_AUTO &&
|
|
gst_decklink_pixel_format_from_type (self->video_format) != f) {
|
|
GST_WARNING_OBJECT (self, "Failed to set pixel format to %d",
|
|
self->video_format);
|
|
return FALSE;
|
|
}
|
|
} else {
|
|
/* We don't have to give the format in EnableVideoOutput. Therefore,
|
|
* even if it's AUTO, we have it stored in self->info and set it in
|
|
* gst_decklink_video_sink_prepare */
|
|
mode = gst_decklink_get_mode (self->mode);
|
|
g_assert (mode != NULL);
|
|
};
|
|
|
|
/* enable or disable keyer */
|
|
if (self->output->keyer != NULL) {
|
|
if (self->keyer_mode == bmdKeyerModeOff) {
|
|
self->output->keyer->Disable ();
|
|
} else if (self->keyer_mode == bmdKeyerModeInternal) {
|
|
self->output->keyer->Enable (false);
|
|
self->output->keyer->SetLevel (self->keyer_level);
|
|
} else if (self->keyer_mode == bmdKeyerModeExternal) {
|
|
self->output->keyer->Enable (true);
|
|
self->output->keyer->SetLevel (self->keyer_level);
|
|
} else {
|
|
g_assert_not_reached ();
|
|
}
|
|
} else if (self->keyer_mode != bmdKeyerModeOff) {
|
|
GST_WARNING_OBJECT (self, "Failed to set keyer to mode %d",
|
|
self->keyer_mode);
|
|
}
|
|
|
|
/* The timecode_format itself is used when we embed the actual timecode data
|
|
* into the frame. Now we only need to know which of the two standards the
|
|
* timecode format will adhere to: VITC or RP188, and send the appropriate
|
|
* flag to EnableVideoOutput. The exact format is specified later.
|
|
*
|
|
* Note that this flag will have no effect in practice if the video stream
|
|
* does not contain timecode metadata.
|
|
*/
|
|
if ((gint64) self->timecode_format ==
|
|
(gint64) GST_DECKLINK_TIMECODE_FORMAT_VITC
|
|
|| (gint64) self->timecode_format ==
|
|
(gint64) GST_DECKLINK_TIMECODE_FORMAT_VITCFIELD2)
|
|
flags = bmdVideoOutputVITC;
|
|
else
|
|
flags = bmdVideoOutputRP188;
|
|
|
|
if (self->caption_line > 0 || self->afd_bar_line > 0)
|
|
flags = (BMDVideoOutputFlags) (flags | bmdVideoOutputVANC);
|
|
|
|
ret = self->output->output->EnableVideoOutput (mode->mode, flags);
|
|
if (ret != S_OK) {
|
|
GST_WARNING_OBJECT (self, "Failed to enable video output: 0x%08lx",
|
|
(unsigned long) ret);
|
|
return FALSE;
|
|
}
|
|
|
|
self->info = info;
|
|
g_mutex_lock (&self->output->lock);
|
|
self->output->mode = mode;
|
|
self->output->video_enabled = TRUE;
|
|
if (self->output->start_scheduled_playback)
|
|
self->output->start_scheduled_playback (self->output->videosink);
|
|
g_mutex_unlock (&self->output->lock);
|
|
|
|
if (self->vbiencoder) {
|
|
gst_video_vbi_encoder_free (self->vbiencoder);
|
|
self->vbiencoder = NULL;
|
|
self->anc_vformat = GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_decklink_video_sink_get_caps (GstBaseSink * bsink, GstCaps * filter)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (bsink);
|
|
GstCaps *mode_caps, *caps;
|
|
|
|
if (self->mode == GST_DECKLINK_MODE_AUTO
|
|
&& self->video_format == GST_DECKLINK_VIDEO_FORMAT_AUTO)
|
|
mode_caps = gst_decklink_mode_get_template_caps (FALSE);
|
|
else if (self->video_format == GST_DECKLINK_VIDEO_FORMAT_AUTO)
|
|
mode_caps = gst_decklink_mode_get_caps_all_formats (self->mode, FALSE);
|
|
else if (self->mode == GST_DECKLINK_MODE_AUTO)
|
|
mode_caps =
|
|
gst_decklink_pixel_format_get_caps (gst_decklink_pixel_format_from_type
|
|
(self->video_format), FALSE);
|
|
else
|
|
mode_caps =
|
|
gst_decklink_mode_get_caps (self->mode,
|
|
gst_decklink_pixel_format_from_type (self->video_format), FALSE);
|
|
mode_caps = gst_caps_make_writable (mode_caps);
|
|
/* For output we support any framerate and only really care about timestamps */
|
|
gst_caps_map_in_place (mode_caps, reset_framerate, NULL);
|
|
|
|
if (filter) {
|
|
caps =
|
|
gst_caps_intersect_full (filter, mode_caps, GST_CAPS_INTERSECT_FIRST);
|
|
gst_caps_unref (mode_caps);
|
|
} else {
|
|
caps = mode_caps;
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_decklink_video_sink_render (GstBaseSink * bsink, GstBuffer * buffer)
|
|
{
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
void
|
|
gst_decklink_video_sink_convert_to_internal_clock (GstDecklinkVideoSink * self,
|
|
GstClockTime * timestamp, GstClockTime * duration)
|
|
{
|
|
GstClock *clock;
|
|
GstClockTime internal_base, external_base, internal_offset;
|
|
|
|
g_assert (timestamp != NULL);
|
|
|
|
clock = gst_element_get_clock (GST_ELEMENT_CAST (self));
|
|
GST_OBJECT_LOCK (self);
|
|
internal_base = self->internal_base_time;
|
|
external_base = self->external_base_time;
|
|
internal_offset = self->internal_time_offset;
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
if (!clock || clock != self->output->clock) {
|
|
GstClockTime internal, external, rate_n, rate_d;
|
|
GstClockTime external_timestamp = *timestamp;
|
|
GstClockTime base_time;
|
|
|
|
gst_clock_get_calibration (self->output->clock, &internal, &external,
|
|
&rate_n, &rate_d);
|
|
|
|
// Convert to the running time corresponding to both clock times
|
|
if (!GST_CLOCK_TIME_IS_VALID (internal_base) || internal < internal_base)
|
|
internal = 0;
|
|
else
|
|
internal -= internal_base;
|
|
|
|
if (!GST_CLOCK_TIME_IS_VALID (external_base) || external < external_base)
|
|
external = 0;
|
|
else
|
|
external -= external_base;
|
|
|
|
// Convert timestamp to the "running time" since we started scheduled
|
|
// playback, that is the difference between the pipeline's base time
|
|
// and our own base time.
|
|
base_time = gst_element_get_base_time (GST_ELEMENT_CAST (self));
|
|
if (base_time > external_base)
|
|
base_time = 0;
|
|
else
|
|
base_time = external_base - base_time;
|
|
|
|
if (external_timestamp < base_time)
|
|
external_timestamp = 0;
|
|
else
|
|
external_timestamp = external_timestamp - base_time;
|
|
|
|
// Get the difference in the external time, note
|
|
// that the running time is external time.
|
|
// Then scale this difference and offset it to
|
|
// our internal time. Now we have the running time
|
|
// according to our internal clock.
|
|
//
|
|
// For the duration we just scale
|
|
*timestamp =
|
|
gst_clock_unadjust_with_calibration (NULL, external_timestamp,
|
|
internal, external, rate_n, rate_d);
|
|
|
|
GST_LOG_OBJECT (self,
|
|
"Converted %" GST_TIME_FORMAT " to %" GST_TIME_FORMAT " (internal: %"
|
|
GST_TIME_FORMAT " external %" GST_TIME_FORMAT " rate: %lf)",
|
|
GST_TIME_ARGS (external_timestamp), GST_TIME_ARGS (*timestamp),
|
|
GST_TIME_ARGS (internal), GST_TIME_ARGS (external),
|
|
((gdouble) rate_n) / ((gdouble) rate_d));
|
|
|
|
if (duration) {
|
|
GstClockTime external_duration = *duration;
|
|
|
|
*duration = gst_util_uint64_scale (external_duration, rate_d, rate_n);
|
|
|
|
GST_LOG_OBJECT (self,
|
|
"Converted duration %" GST_TIME_FORMAT " to %" GST_TIME_FORMAT
|
|
" (internal: %" GST_TIME_FORMAT " external %" GST_TIME_FORMAT
|
|
" rate: %lf)", GST_TIME_ARGS (external_duration),
|
|
GST_TIME_ARGS (*duration), GST_TIME_ARGS (internal),
|
|
GST_TIME_ARGS (external), ((gdouble) rate_n) / ((gdouble) rate_d));
|
|
}
|
|
} else {
|
|
GST_LOG_OBJECT (self, "No clock conversion needed, same clocks: %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (*timestamp));
|
|
}
|
|
|
|
if (external_base != GST_CLOCK_TIME_NONE &&
|
|
internal_base != GST_CLOCK_TIME_NONE)
|
|
*timestamp += internal_offset;
|
|
else
|
|
*timestamp = gst_clock_get_internal_time (self->output->clock);
|
|
|
|
GST_LOG_OBJECT (self, "Output timestamp %" GST_TIME_FORMAT
|
|
" using clock epoch %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (*timestamp), GST_TIME_ARGS (self->output->clock_epoch));
|
|
|
|
if (clock)
|
|
gst_object_unref (clock);
|
|
}
|
|
|
|
/* Copied from ext/closedcaption/gstccconverter.c */
|
|
/* Converts raw CEA708 cc_data and an optional timecode into CDP */
|
|
static guint
|
|
convert_cea708_cc_data_cea708_cdp_internal (GstDecklinkVideoSink * self,
|
|
const guint8 * cc_data, guint cc_data_len, guint8 * cdp, guint cdp_len,
|
|
const GstVideoTimeCodeMeta * tc_meta)
|
|
{
|
|
GstByteWriter bw;
|
|
guint8 flags, checksum;
|
|
guint i, len;
|
|
const GstDecklinkMode *mode = gst_decklink_get_mode (self->mode);
|
|
|
|
gst_byte_writer_init_with_data (&bw, cdp, cdp_len, FALSE);
|
|
gst_byte_writer_put_uint16_be_unchecked (&bw, 0x9669);
|
|
/* Write a length of 0 for now */
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0);
|
|
if (mode->fps_n == 24000 && mode->fps_d == 1001) {
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x1f);
|
|
} else if (mode->fps_n == 24 && mode->fps_d == 1) {
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x2f);
|
|
} else if (mode->fps_n == 25 && mode->fps_d == 1) {
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x3f);
|
|
} else if (mode->fps_n == 30 && mode->fps_d == 1001) {
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x4f);
|
|
} else if (mode->fps_n == 30 && mode->fps_d == 1) {
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x5f);
|
|
} else if (mode->fps_n == 50 && mode->fps_d == 1) {
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x6f);
|
|
} else if (mode->fps_n == 60000 && mode->fps_d == 1001) {
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x7f);
|
|
} else if (mode->fps_n == 60 && mode->fps_d == 1) {
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x8f);
|
|
} else {
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
/* ccdata_present | caption_service_active */
|
|
flags = 0x42;
|
|
|
|
/* time_code_present */
|
|
if (tc_meta)
|
|
flags |= 0x80;
|
|
|
|
/* reserved */
|
|
flags |= 0x01;
|
|
|
|
gst_byte_writer_put_uint8_unchecked (&bw, flags);
|
|
|
|
gst_byte_writer_put_uint16_be_unchecked (&bw, self->cdp_hdr_sequence_cntr);
|
|
|
|
if (tc_meta) {
|
|
const GstVideoTimeCode *tc = &tc_meta->tc;
|
|
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x71);
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0xc0 |
|
|
(((tc->hours % 10) & 0x3) << 4) |
|
|
((tc->hours - (tc->hours % 10)) & 0xf));
|
|
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x80 |
|
|
(((tc->minutes % 10) & 0x7) << 4) |
|
|
((tc->minutes - (tc->minutes % 10)) & 0xf));
|
|
|
|
gst_byte_writer_put_uint8_unchecked (&bw,
|
|
(tc->field_count <
|
|
2 ? 0x00 : 0x80) | (((tc->seconds %
|
|
10) & 0x7) << 4) | ((tc->seconds -
|
|
(tc->seconds % 10)) & 0xf));
|
|
|
|
gst_byte_writer_put_uint8_unchecked (&bw,
|
|
((tc->config.flags & GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME) ? 0x80 :
|
|
0x00) | (((tc->frames % 10) & 0x3) << 4) | ((tc->frames -
|
|
(tc->frames % 10)) & 0xf));
|
|
}
|
|
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x72);
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0xe0 | cc_data_len / 3);
|
|
gst_byte_writer_put_data_unchecked (&bw, cc_data, cc_data_len);
|
|
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0x74);
|
|
gst_byte_writer_put_uint16_be_unchecked (&bw, self->cdp_hdr_sequence_cntr);
|
|
self->cdp_hdr_sequence_cntr++;
|
|
/* We calculate the checksum afterwards */
|
|
gst_byte_writer_put_uint8_unchecked (&bw, 0);
|
|
|
|
len = gst_byte_writer_get_pos (&bw);
|
|
gst_byte_writer_set_pos (&bw, 2);
|
|
gst_byte_writer_put_uint8_unchecked (&bw, len);
|
|
|
|
checksum = 0;
|
|
for (i = 0; i < len; i++) {
|
|
checksum += cdp[i];
|
|
}
|
|
checksum &= 0xff;
|
|
checksum = 256 - checksum;
|
|
cdp[len - 1] = checksum;
|
|
|
|
return len;
|
|
}
|
|
|
|
static void
|
|
write_vbi (GstDecklinkVideoSink * self, GstBuffer * buffer,
|
|
BMDPixelFormat format, IDeckLinkMutableVideoFrame * frame,
|
|
GstVideoTimeCodeMeta * tc_meta)
|
|
{
|
|
IDeckLinkVideoFrameAncillary *vanc_frame = NULL;
|
|
gpointer iter = NULL;
|
|
GstVideoCaptionMeta *cc_meta;
|
|
guint8 *vancdata;
|
|
gboolean got_captions = FALSE;
|
|
|
|
if (self->caption_line == 0 && self->afd_bar_line == 0)
|
|
return;
|
|
|
|
if (self->vbiencoder == NULL) {
|
|
self->vbiencoder =
|
|
gst_video_vbi_encoder_new (self->info.finfo->format, self->info.width);
|
|
self->anc_vformat = self->info.finfo->format;
|
|
}
|
|
|
|
/* Put any closed captions into the configured line */
|
|
while ((cc_meta =
|
|
(GstVideoCaptionMeta *) gst_buffer_iterate_meta_filtered (buffer,
|
|
&iter, GST_VIDEO_CAPTION_META_API_TYPE))) {
|
|
switch (cc_meta->caption_type) {
|
|
case GST_VIDEO_CAPTION_TYPE_CEA608_RAW:{
|
|
guint8 data[138];
|
|
guint i, n;
|
|
|
|
n = cc_meta->size / 2;
|
|
if (cc_meta->size > 46) {
|
|
GST_WARNING_OBJECT (self, "Too big raw CEA608 buffer");
|
|
break;
|
|
}
|
|
|
|
/* This is the offset from line 9 for 525-line fields and from line
|
|
* 5 for 625-line fields.
|
|
*
|
|
* The highest bit is set for field 1 but not for field 0, but we
|
|
* have no way of knowning the field here
|
|
*/
|
|
for (i = 0; i < n; i++) {
|
|
data[3 * i] = 0x80 | (self->info.height ==
|
|
525 ? self->caption_line - 9 : self->caption_line - 5);
|
|
data[3 * i + 1] = cc_meta->data[2 * i];
|
|
data[3 * i + 2] = cc_meta->data[2 * i + 1];
|
|
}
|
|
|
|
if (!gst_video_vbi_encoder_add_ancillary (self->vbiencoder,
|
|
FALSE,
|
|
GST_VIDEO_ANCILLARY_DID16_S334_EIA_608 >> 8,
|
|
GST_VIDEO_ANCILLARY_DID16_S334_EIA_608 & 0xff, data, 3))
|
|
GST_WARNING_OBJECT (self, "Couldn't add meta to ancillary data");
|
|
|
|
got_captions = TRUE;
|
|
|
|
break;
|
|
}
|
|
case GST_VIDEO_CAPTION_TYPE_CEA608_S334_1A:{
|
|
if (!gst_video_vbi_encoder_add_ancillary (self->vbiencoder,
|
|
FALSE,
|
|
GST_VIDEO_ANCILLARY_DID16_S334_EIA_608 >> 8,
|
|
GST_VIDEO_ANCILLARY_DID16_S334_EIA_608 & 0xff, cc_meta->data,
|
|
cc_meta->size))
|
|
GST_WARNING_OBJECT (self, "Couldn't add meta to ancillary data");
|
|
|
|
got_captions = TRUE;
|
|
|
|
break;
|
|
}
|
|
case GST_VIDEO_CAPTION_TYPE_CEA708_RAW:{
|
|
guint8 data[256];
|
|
guint n;
|
|
|
|
n = cc_meta->size / 3;
|
|
if (cc_meta->size > 46) {
|
|
GST_WARNING_OBJECT (self, "Too big raw CEA708 buffer");
|
|
break;
|
|
}
|
|
|
|
n = convert_cea708_cc_data_cea708_cdp_internal (self, cc_meta->data,
|
|
cc_meta->size, data, sizeof (data), tc_meta);
|
|
if (!gst_video_vbi_encoder_add_ancillary (self->vbiencoder, FALSE,
|
|
GST_VIDEO_ANCILLARY_DID16_S334_EIA_708 >> 8,
|
|
GST_VIDEO_ANCILLARY_DID16_S334_EIA_708 & 0xff, data, n))
|
|
GST_WARNING_OBJECT (self, "Couldn't add meta to ancillary data");
|
|
|
|
got_captions = TRUE;
|
|
|
|
break;
|
|
}
|
|
case GST_VIDEO_CAPTION_TYPE_CEA708_CDP:{
|
|
if (!gst_video_vbi_encoder_add_ancillary (self->vbiencoder,
|
|
FALSE,
|
|
GST_VIDEO_ANCILLARY_DID16_S334_EIA_708 >> 8,
|
|
GST_VIDEO_ANCILLARY_DID16_S334_EIA_708 & 0xff, cc_meta->data,
|
|
cc_meta->size))
|
|
GST_WARNING_OBJECT (self, "Couldn't add meta to ancillary data");
|
|
|
|
got_captions = TRUE;
|
|
|
|
break;
|
|
}
|
|
default:{
|
|
GST_FIXME_OBJECT (self, "Caption type %d not supported",
|
|
cc_meta->caption_type);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((got_captions || self->afd_bar_line != 0)
|
|
&& self->output->output->CreateAncillaryData (format,
|
|
&vanc_frame) == S_OK) {
|
|
GstVideoAFDMeta *afd_meta = NULL, *afd_meta2 = NULL;
|
|
GstVideoBarMeta *bar_meta = NULL, *bar_meta2 = NULL;
|
|
GstMeta *meta;
|
|
gpointer meta_iter;
|
|
guint8 afd_bar_data[8] = { 0, };
|
|
guint8 afd_bar_data2[8] = { 0, };
|
|
guint8 afd = 0;
|
|
gboolean is_letterbox = 0;
|
|
guint16 bar1 = 0, bar2 = 0;
|
|
guint i;
|
|
|
|
// Get any reasonable AFD/Bar metas for both fields
|
|
meta_iter = NULL;
|
|
while ((meta =
|
|
gst_buffer_iterate_meta_filtered (buffer, &meta_iter,
|
|
GST_VIDEO_AFD_META_API_TYPE))) {
|
|
GstVideoAFDMeta *tmp_meta = (GstVideoAFDMeta *) meta;
|
|
|
|
if (tmp_meta->field == 0 || !afd_meta || (afd_meta && afd_meta->field != 0
|
|
&& tmp_meta->field == 0))
|
|
afd_meta = tmp_meta;
|
|
if (tmp_meta->field == 1 || !afd_meta2 || (afd_meta2
|
|
&& afd_meta->field != 1 && tmp_meta->field == 1))
|
|
afd_meta2 = tmp_meta;
|
|
}
|
|
|
|
meta_iter = NULL;
|
|
while ((meta =
|
|
gst_buffer_iterate_meta_filtered (buffer, &meta_iter,
|
|
GST_VIDEO_BAR_META_API_TYPE))) {
|
|
GstVideoBarMeta *tmp_meta = (GstVideoBarMeta *) meta;
|
|
|
|
if (tmp_meta->field == 0 || !bar_meta || (bar_meta && bar_meta->field != 0
|
|
&& tmp_meta->field == 0))
|
|
bar_meta = tmp_meta;
|
|
if (tmp_meta->field == 1 || !bar_meta2 || (bar_meta2
|
|
&& bar_meta->field != 1 && tmp_meta->field == 1))
|
|
bar_meta2 = tmp_meta;
|
|
}
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
guint8 *afd_bar_data_ptr;
|
|
|
|
if (i == 0) {
|
|
afd_bar_data_ptr = afd_bar_data;
|
|
afd = afd_meta ? afd_meta->afd : 0;
|
|
is_letterbox = bar_meta ? bar_meta->is_letterbox : FALSE;
|
|
bar1 = bar_meta ? bar_meta->bar_data1 : 0;
|
|
bar2 = bar_meta ? bar_meta->bar_data2 : 0;
|
|
} else {
|
|
afd_bar_data_ptr = afd_bar_data2;
|
|
afd = afd_meta2 ? afd_meta2->afd : 0;
|
|
is_letterbox = bar_meta2 ? bar_meta2->is_letterbox : FALSE;
|
|
bar1 = bar_meta2 ? bar_meta2->bar_data1 : 0;
|
|
bar2 = bar_meta2 ? bar_meta2->bar_data2 : 0;
|
|
}
|
|
|
|
/* See SMPTE 2016-3 Section 4 */
|
|
/* AFD and AR */
|
|
if (self->mode < (gint) GST_DECKLINK_MODE_NTSC_WIDESCREEN) {
|
|
afd_bar_data_ptr[0] = (afd << 3) | 0x0;
|
|
} else {
|
|
afd_bar_data_ptr[0] = (afd << 3) | 0x4;
|
|
}
|
|
|
|
/* Bar flags */
|
|
afd_bar_data_ptr[3] = is_letterbox ? 0xc0 : 0x30;
|
|
|
|
/* Bar value 1 and 2 */
|
|
GST_WRITE_UINT16_BE (&afd_bar_data_ptr[4], bar1);
|
|
GST_WRITE_UINT16_BE (&afd_bar_data_ptr[6], bar2);
|
|
}
|
|
|
|
/* AFD on the same line as the captions */
|
|
if (self->caption_line == self->afd_bar_line) {
|
|
if (!gst_video_vbi_encoder_add_ancillary (self->vbiencoder,
|
|
FALSE, GST_VIDEO_ANCILLARY_DID16_S2016_3_AFD_BAR >> 8,
|
|
GST_VIDEO_ANCILLARY_DID16_S2016_3_AFD_BAR & 0xff, afd_bar_data,
|
|
sizeof (afd_bar_data)))
|
|
GST_WARNING_OBJECT (self,
|
|
"Couldn't add AFD/Bar data to ancillary data");
|
|
}
|
|
|
|
/* FIXME: Add captions to the correct field? Captions for the second
|
|
* field should probably be inserted into the second field */
|
|
|
|
if (got_captions || self->caption_line == self->afd_bar_line) {
|
|
if (vanc_frame->GetBufferForVerticalBlankingLine (self->caption_line,
|
|
(void **) &vancdata) == S_OK) {
|
|
gst_video_vbi_encoder_write_line (self->vbiencoder, vancdata);
|
|
} else {
|
|
GST_WARNING_OBJECT (self,
|
|
"Failed to get buffer for line %d ancillary data",
|
|
self->caption_line);
|
|
}
|
|
}
|
|
|
|
/* AFD on a different line than the captions */
|
|
if (self->afd_bar_line != 0 && self->caption_line != self->afd_bar_line) {
|
|
if (!gst_video_vbi_encoder_add_ancillary (self->vbiencoder,
|
|
FALSE, GST_VIDEO_ANCILLARY_DID16_S2016_3_AFD_BAR >> 8,
|
|
GST_VIDEO_ANCILLARY_DID16_S2016_3_AFD_BAR & 0xff, afd_bar_data,
|
|
sizeof (afd_bar_data)))
|
|
GST_WARNING_OBJECT (self,
|
|
"Couldn't add AFD/Bar data to ancillary data");
|
|
|
|
if (vanc_frame->GetBufferForVerticalBlankingLine (self->afd_bar_line,
|
|
(void **) &vancdata) == S_OK) {
|
|
gst_video_vbi_encoder_write_line (self->vbiencoder, vancdata);
|
|
} else {
|
|
GST_WARNING_OBJECT (self,
|
|
"Failed to get buffer for line %d ancillary data",
|
|
self->afd_bar_line);
|
|
}
|
|
}
|
|
|
|
/* For interlaced video we need to also add AFD to the second field */
|
|
if (GST_VIDEO_INFO_IS_INTERLACED (&self->info) && self->afd_bar_line != 0) {
|
|
guint field2_offset;
|
|
|
|
/* The VANC lines for the second field are at an offset, depending on
|
|
* the format in use.
|
|
*/
|
|
switch (self->info.height) {
|
|
case 486:
|
|
/* NTSC: 525 / 2 + 1 */
|
|
field2_offset = 263;
|
|
break;
|
|
case 576:
|
|
/* PAL: 625 / 2 + 1 */
|
|
field2_offset = 313;
|
|
break;
|
|
case 1080:
|
|
/* 1080i: 1125 / 2 + 1 */
|
|
field2_offset = 563;
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
if (!gst_video_vbi_encoder_add_ancillary (self->vbiencoder,
|
|
FALSE, GST_VIDEO_ANCILLARY_DID16_S2016_3_AFD_BAR >> 8,
|
|
GST_VIDEO_ANCILLARY_DID16_S2016_3_AFD_BAR & 0xff, afd_bar_data2,
|
|
sizeof (afd_bar_data)))
|
|
GST_WARNING_OBJECT (self,
|
|
"Couldn't add AFD/Bar data to ancillary data");
|
|
|
|
if (vanc_frame->GetBufferForVerticalBlankingLine (self->afd_bar_line +
|
|
field2_offset, (void **) &vancdata) == S_OK) {
|
|
gst_video_vbi_encoder_write_line (self->vbiencoder, vancdata);
|
|
} else {
|
|
GST_WARNING_OBJECT (self,
|
|
"Failed to get buffer for line %d ancillary data",
|
|
self->afd_bar_line);
|
|
}
|
|
}
|
|
|
|
if (frame->SetAncillaryData (vanc_frame) != S_OK) {
|
|
GST_WARNING_OBJECT (self, "Failed to set ancillary data");
|
|
}
|
|
|
|
vanc_frame->Release ();
|
|
} else if (got_captions || self->afd_bar_line != 0) {
|
|
GST_WARNING_OBJECT (self, "Failed to allocate ancillary data frame");
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_decklink_video_sink_prepare (GstBaseSink * bsink, GstBuffer * buffer)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (bsink);
|
|
GstVideoFrame vframe;
|
|
IDeckLinkMutableVideoFrame *frame;
|
|
guint8 *outdata, *indata;
|
|
GstFlowReturn flow_ret;
|
|
HRESULT ret;
|
|
GstClockTime timestamp, duration;
|
|
GstClockTime running_time, running_time_duration;
|
|
GstClockTime latency, render_delay;
|
|
GstClockTimeDiff ts_offset;
|
|
gint i;
|
|
GstDecklinkVideoFormat caps_format;
|
|
BMDPixelFormat format;
|
|
gint stride;
|
|
GstVideoTimeCodeMeta *tc_meta;
|
|
|
|
GST_DEBUG_OBJECT (self, "Preparing buffer %p", buffer);
|
|
|
|
// FIXME: Handle no timestamps
|
|
if (!GST_BUFFER_TIMESTAMP_IS_VALID (buffer)) {
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
caps_format = gst_decklink_type_from_video_format (self->info.finfo->format);
|
|
format = gst_decklink_pixel_format_from_type (caps_format);
|
|
|
|
timestamp = GST_BUFFER_TIMESTAMP (buffer);
|
|
duration = GST_BUFFER_DURATION (buffer);
|
|
if (duration == GST_CLOCK_TIME_NONE) {
|
|
duration =
|
|
gst_util_uint64_scale_int (GST_SECOND, self->info.fps_d,
|
|
self->info.fps_n);
|
|
}
|
|
running_time =
|
|
gst_segment_to_running_time (&GST_BASE_SINK_CAST (self)->segment,
|
|
GST_FORMAT_TIME, timestamp);
|
|
running_time_duration =
|
|
gst_segment_to_running_time (&GST_BASE_SINK_CAST (self)->segment,
|
|
GST_FORMAT_TIME, timestamp + duration) - running_time;
|
|
|
|
/* See gst_base_sink_adjust_time() */
|
|
latency = gst_base_sink_get_latency (bsink);
|
|
render_delay = gst_base_sink_get_render_delay (bsink);
|
|
ts_offset = gst_base_sink_get_ts_offset (bsink);
|
|
|
|
running_time += latency;
|
|
|
|
if (ts_offset < 0) {
|
|
ts_offset = -ts_offset;
|
|
if ((GstClockTime) ts_offset < running_time)
|
|
running_time -= ts_offset;
|
|
else
|
|
running_time = 0;
|
|
} else {
|
|
running_time += ts_offset;
|
|
}
|
|
|
|
if (running_time > render_delay)
|
|
running_time -= render_delay;
|
|
else
|
|
running_time = 0;
|
|
|
|
ret = self->output->output->CreateVideoFrame (self->info.width,
|
|
self->info.height, self->info.stride[0], format, bmdFrameFlagDefault,
|
|
&frame);
|
|
if (ret != S_OK) {
|
|
GST_ELEMENT_ERROR (self, STREAM, FAILED,
|
|
(NULL), ("Failed to create video frame: 0x%08lx", (unsigned long) ret));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
if (!gst_video_frame_map (&vframe, &self->info, buffer, GST_MAP_READ)) {
|
|
GST_ERROR_OBJECT (self, "Failed to map video frame");
|
|
flow_ret = GST_FLOW_ERROR;
|
|
goto out;
|
|
}
|
|
|
|
frame->GetBytes ((void **) &outdata);
|
|
indata = (guint8 *) GST_VIDEO_FRAME_PLANE_DATA (&vframe, 0);
|
|
stride =
|
|
MIN (GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0), frame->GetRowBytes ());
|
|
for (i = 0; i < self->info.height; i++) {
|
|
memcpy (outdata, indata, stride);
|
|
indata += GST_VIDEO_FRAME_PLANE_STRIDE (&vframe, 0);
|
|
outdata += frame->GetRowBytes ();
|
|
}
|
|
gst_video_frame_unmap (&vframe);
|
|
|
|
tc_meta = gst_buffer_get_video_time_code_meta (buffer);
|
|
if (tc_meta) {
|
|
BMDTimecodeFlags bflags = (BMDTimecodeFlags) 0;
|
|
gchar *tc_str;
|
|
|
|
if (((GstVideoTimeCodeFlags) (tc_meta->tc.
|
|
config.flags)) & GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME)
|
|
bflags = (BMDTimecodeFlags) (bflags | bmdTimecodeIsDropFrame);
|
|
else
|
|
bflags = (BMDTimecodeFlags) (bflags | bmdTimecodeFlagDefault);
|
|
if (tc_meta->tc.field_count == 2)
|
|
bflags = (BMDTimecodeFlags) (bflags | bmdTimecodeFieldMark);
|
|
|
|
tc_str = gst_video_time_code_to_string (&tc_meta->tc);
|
|
ret = frame->SetTimecodeFromComponents (self->timecode_format,
|
|
(uint8_t) tc_meta->tc.hours,
|
|
(uint8_t) tc_meta->tc.minutes,
|
|
(uint8_t) tc_meta->tc.seconds, (uint8_t) tc_meta->tc.frames, bflags);
|
|
if (ret != S_OK) {
|
|
GST_ERROR_OBJECT (self,
|
|
"Failed to set timecode %s to video frame: 0x%08lx", tc_str,
|
|
(unsigned long) ret);
|
|
flow_ret = GST_FLOW_ERROR;
|
|
g_free (tc_str);
|
|
goto out;
|
|
}
|
|
GST_DEBUG_OBJECT (self, "Set frame timecode to %s", tc_str);
|
|
g_free (tc_str);
|
|
}
|
|
|
|
write_vbi (self, buffer, format, frame, tc_meta);
|
|
|
|
gst_decklink_video_sink_convert_to_internal_clock (self, &running_time,
|
|
&running_time_duration);
|
|
|
|
GST_LOG_OBJECT (self, "Scheduling video frame %p at %" GST_TIME_FORMAT
|
|
" with duration %" GST_TIME_FORMAT, frame, GST_TIME_ARGS (running_time),
|
|
GST_TIME_ARGS (running_time_duration));
|
|
|
|
ret = self->output->output->ScheduleVideoFrame (frame,
|
|
running_time, running_time_duration, GST_SECOND);
|
|
if (ret != S_OK) {
|
|
GST_ELEMENT_ERROR (self, STREAM, FAILED,
|
|
(NULL), ("Failed to schedule frame: 0x%08lx", (unsigned long) ret));
|
|
flow_ret = GST_FLOW_ERROR;
|
|
goto out;
|
|
}
|
|
|
|
flow_ret = GST_FLOW_OK;
|
|
|
|
out:
|
|
|
|
frame->Release ();
|
|
|
|
return flow_ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_decklink_video_sink_open (GstBaseSink * bsink)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (bsink);
|
|
const GstDecklinkMode *mode;
|
|
|
|
GST_DEBUG_OBJECT (self, "Starting");
|
|
|
|
self->output =
|
|
gst_decklink_acquire_nth_output (self->device_number,
|
|
GST_ELEMENT_CAST (self), FALSE);
|
|
if (!self->output) {
|
|
GST_ERROR_OBJECT (self, "Failed to acquire output");
|
|
return FALSE;
|
|
}
|
|
|
|
g_object_notify (G_OBJECT (self), "hw-serial-number");
|
|
|
|
mode = gst_decklink_get_mode (self->mode);
|
|
g_assert (mode != NULL);
|
|
|
|
g_mutex_lock (&self->output->lock);
|
|
self->output->mode = mode;
|
|
self->output->start_scheduled_playback =
|
|
gst_decklink_video_sink_start_scheduled_playback;
|
|
self->output->clock_start_time = GST_CLOCK_TIME_NONE;
|
|
self->output->clock_epoch += self->output->clock_last_time;
|
|
self->output->clock_last_time = 0;
|
|
self->output->clock_offset = 0;
|
|
GST_OBJECT_LOCK (self);
|
|
self->internal_base_time = GST_CLOCK_TIME_NONE;
|
|
self->external_base_time = GST_CLOCK_TIME_NONE;
|
|
GST_OBJECT_UNLOCK (self);
|
|
g_mutex_unlock (&self->output->lock);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_decklink_video_sink_close (GstBaseSink * bsink)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (bsink);
|
|
|
|
GST_DEBUG_OBJECT (self, "Closing");
|
|
|
|
if (self->output) {
|
|
g_mutex_lock (&self->output->lock);
|
|
self->output->mode = NULL;
|
|
self->output->video_enabled = FALSE;
|
|
if (self->output->start_scheduled_playback && self->output->videosink)
|
|
self->output->start_scheduled_playback (self->output->videosink);
|
|
g_mutex_unlock (&self->output->lock);
|
|
|
|
self->output->output->DisableVideoOutput ();
|
|
gst_decklink_release_nth_output (self->device_number,
|
|
GST_ELEMENT_CAST (self), FALSE);
|
|
self->output = NULL;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_decklink_video_sink_stop (GstDecklinkVideoSink * self)
|
|
{
|
|
GST_DEBUG_OBJECT (self, "Stopping");
|
|
|
|
if (self->output && self->output->video_enabled) {
|
|
g_mutex_lock (&self->output->lock);
|
|
self->output->video_enabled = FALSE;
|
|
g_mutex_unlock (&self->output->lock);
|
|
|
|
self->output->output->DisableVideoOutput ();
|
|
self->output->output->SetScheduledFrameCompletionCallback (NULL);
|
|
}
|
|
|
|
if (self->vbiencoder) {
|
|
gst_video_vbi_encoder_free (self->vbiencoder);
|
|
self->vbiencoder = NULL;
|
|
self->anc_vformat = GST_VIDEO_FORMAT_UNKNOWN;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
_wait_for_stop_notify (GstDecklinkVideoSink * self)
|
|
{
|
|
bool active = false;
|
|
|
|
self->output->output->IsScheduledPlaybackRunning (&active);
|
|
while (active) {
|
|
/* cause sometimes decklink stops without notifying us... */
|
|
guint64 wait_time = g_get_monotonic_time () + G_TIME_SPAN_SECOND;
|
|
if (!g_cond_wait_until (&self->output->cond, &self->output->lock,
|
|
wait_time))
|
|
GST_WARNING_OBJECT (self, "Failed to wait for stop notification");
|
|
self->output->output->IsScheduledPlaybackRunning (&active);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_decklink_video_sink_start_scheduled_playback (GstElement * element)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (element);
|
|
GstClockTime start_time;
|
|
HRESULT res;
|
|
bool active;
|
|
|
|
// Check if we're already started
|
|
if (self->output->started) {
|
|
GST_DEBUG_OBJECT (self, "Already started");
|
|
return;
|
|
}
|
|
// Check if we're ready to start:
|
|
// we need video and audio enabled, if there is audio
|
|
// and both of the two elements need to be set to PLAYING already
|
|
if (!self->output->video_enabled) {
|
|
GST_DEBUG_OBJECT (self,
|
|
"Not starting scheduled playback yet: video not enabled yet!");
|
|
return;
|
|
}
|
|
|
|
if (self->output->audiosink && !self->output->audio_enabled) {
|
|
GST_DEBUG_OBJECT (self,
|
|
"Not starting scheduled playback yet: "
|
|
"have audio but not enabled yet!");
|
|
return;
|
|
}
|
|
|
|
if ((GST_STATE (self) < GST_STATE_PAUSED
|
|
&& GST_STATE_PENDING (self) < GST_STATE_PAUSED)
|
|
|| (self->output->audiosink &&
|
|
GST_STATE (self->output->audiosink) < GST_STATE_PAUSED
|
|
&& GST_STATE_PENDING (self->output->audiosink) < GST_STATE_PAUSED)) {
|
|
GST_DEBUG_OBJECT (self,
|
|
"Not starting scheduled playback yet: "
|
|
"Elements are not set to PAUSED yet");
|
|
return;
|
|
}
|
|
// Need to unlock to get the clock time
|
|
g_mutex_unlock (&self->output->lock);
|
|
|
|
start_time = gst_clock_get_internal_time (self->output->clock);
|
|
|
|
g_mutex_lock (&self->output->lock);
|
|
// Check if someone else started in the meantime
|
|
if (self->output->started) {
|
|
return;
|
|
}
|
|
|
|
active = false;
|
|
self->output->output->IsScheduledPlaybackRunning (&active);
|
|
if (active) {
|
|
GST_DEBUG_OBJECT (self, "Stopping scheduled playback");
|
|
|
|
self->output->started = FALSE;
|
|
|
|
res = self->output->output->StopScheduledPlayback (0, 0, 0);
|
|
if (res != S_OK) {
|
|
GST_ELEMENT_ERROR (self, STREAM, FAILED,
|
|
(NULL), ("Failed to stop scheduled playback: 0x%08lx",
|
|
(unsigned long) res));
|
|
return;
|
|
}
|
|
// Wait until scheduled playback actually stopped
|
|
_wait_for_stop_notify (self);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (self,
|
|
"Starting scheduled playback at %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (start_time));
|
|
|
|
res =
|
|
self->output->output->StartScheduledPlayback (start_time,
|
|
GST_SECOND, 1.0);
|
|
if (res != S_OK) {
|
|
GST_ELEMENT_ERROR (self, STREAM, FAILED,
|
|
(NULL), ("Failed to start scheduled playback: 0x%08lx",
|
|
(unsigned long) res));
|
|
return;
|
|
}
|
|
|
|
self->output->started = TRUE;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_decklink_video_sink_stop_scheduled_playback (GstDecklinkVideoSink * self)
|
|
{
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
GstClockTime start_time;
|
|
HRESULT res;
|
|
|
|
if (!self->output->started)
|
|
return ret;
|
|
|
|
start_time = gst_clock_get_internal_time (self->output->clock);
|
|
|
|
GST_DEBUG_OBJECT (self,
|
|
"Stopping scheduled playback at %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (start_time));
|
|
|
|
g_mutex_lock (&self->output->lock);
|
|
self->output->started = FALSE;
|
|
res = self->output->output->StopScheduledPlayback (start_time, 0, GST_SECOND);
|
|
if (res != S_OK) {
|
|
GST_ELEMENT_ERROR (self, STREAM, FAILED,
|
|
(NULL), ("Failed to stop scheduled playback: 0x%08lx", (unsigned long)
|
|
res));
|
|
ret = GST_STATE_CHANGE_FAILURE;
|
|
} else {
|
|
|
|
// Wait until scheduled playback actually stopped
|
|
_wait_for_stop_notify (self);
|
|
}
|
|
g_mutex_unlock (&self->output->lock);
|
|
GST_OBJECT_LOCK (self);
|
|
self->internal_base_time = GST_CLOCK_TIME_NONE;
|
|
self->external_base_time = GST_CLOCK_TIME_NONE;
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_decklink_video_sink_change_state (GstElement * element,
|
|
GstStateChange transition)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (element);
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
|
|
GST_DEBUG_OBJECT (self, "changing state: %s => %s",
|
|
gst_element_state_get_name (GST_STATE_TRANSITION_CURRENT (transition)),
|
|
gst_element_state_get_name (GST_STATE_TRANSITION_NEXT (transition)));
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
self->vbiencoder = NULL;
|
|
self->anc_vformat = GST_VIDEO_FORMAT_UNKNOWN;
|
|
self->cdp_hdr_sequence_cntr = 0;
|
|
|
|
g_mutex_lock (&self->output->lock);
|
|
self->output->clock_epoch += self->output->clock_last_time;
|
|
self->output->clock_last_time = 0;
|
|
self->output->clock_offset = 0;
|
|
g_mutex_unlock (&self->output->lock);
|
|
gst_element_post_message (element,
|
|
gst_message_new_clock_provide (GST_OBJECT_CAST (element),
|
|
self->output->clock, TRUE));
|
|
g_mutex_lock (&self->output->lock);
|
|
if (self->output->start_scheduled_playback)
|
|
self->output->start_scheduled_playback (self->output->videosink);
|
|
g_mutex_unlock (&self->output->lock);
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:{
|
|
GstClock *clock;
|
|
|
|
clock = gst_element_get_clock (GST_ELEMENT_CAST (self));
|
|
if (clock) {
|
|
if (clock != self->output->clock) {
|
|
gst_clock_set_master (self->output->clock, clock);
|
|
}
|
|
|
|
GST_OBJECT_LOCK (self);
|
|
if (self->external_base_time == GST_CLOCK_TIME_NONE
|
|
|| self->internal_base_time == GST_CLOCK_TIME_NONE) {
|
|
self->external_base_time = gst_clock_get_internal_time (clock);
|
|
self->internal_base_time =
|
|
gst_clock_get_internal_time (self->output->clock);
|
|
self->internal_time_offset = self->internal_base_time;
|
|
}
|
|
|
|
GST_INFO_OBJECT (self, "clock has been set to %" GST_PTR_FORMAT
|
|
", updated base times - internal: %" GST_TIME_FORMAT
|
|
" external: %" GST_TIME_FORMAT " internal offset %"
|
|
GST_TIME_FORMAT, clock,
|
|
GST_TIME_ARGS (self->internal_base_time),
|
|
GST_TIME_ARGS (self->external_base_time),
|
|
GST_TIME_ARGS (self->internal_time_offset));
|
|
GST_OBJECT_UNLOCK (self);
|
|
|
|
gst_object_unref (clock);
|
|
} else {
|
|
GST_ELEMENT_ERROR (self, STREAM, FAILED,
|
|
(NULL), ("Need a clock to go to PLAYING"));
|
|
ret = GST_STATE_CHANGE_FAILURE;
|
|
}
|
|
break;
|
|
}
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
if (gst_decklink_video_sink_stop_scheduled_playback (self) ==
|
|
GST_STATE_CHANGE_FAILURE)
|
|
ret = GST_STATE_CHANGE_FAILURE;
|
|
break;
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
return ret;
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
return ret;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:{
|
|
gst_element_post_message (element,
|
|
gst_message_new_clock_lost (GST_OBJECT_CAST (element),
|
|
self->output->clock));
|
|
gst_clock_set_master (self->output->clock, NULL);
|
|
// Reset calibration to make the clock reusable next time we use it
|
|
gst_clock_set_calibration (self->output->clock, 0, 0, 1, 1);
|
|
g_mutex_lock (&self->output->lock);
|
|
self->output->clock_epoch += self->output->clock_last_time;
|
|
self->output->clock_last_time = 0;
|
|
self->output->clock_offset = 0;
|
|
g_mutex_unlock (&self->output->lock);
|
|
gst_decklink_video_sink_stop (self);
|
|
GST_OBJECT_LOCK (self);
|
|
self->internal_base_time = GST_CLOCK_TIME_NONE;
|
|
self->external_base_time = GST_CLOCK_TIME_NONE;
|
|
GST_OBJECT_UNLOCK (self);
|
|
break;
|
|
}
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:{
|
|
break;
|
|
}
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
break;
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_decklink_video_sink_event (GstBaseSink * bsink, GstEvent * event)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (bsink);
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_FLUSH_START:
|
|
{
|
|
break;
|
|
}
|
|
case GST_EVENT_FLUSH_STOP:
|
|
{
|
|
gboolean reset_time;
|
|
|
|
gst_event_parse_flush_stop (event, &reset_time);
|
|
if (reset_time) {
|
|
GST_OBJECT_LOCK (self);
|
|
/* force a recalculation of clock base times */
|
|
self->external_base_time = GST_CLOCK_TIME_NONE;
|
|
self->internal_base_time = GST_CLOCK_TIME_NONE;
|
|
GST_OBJECT_UNLOCK (self);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return GST_BASE_SINK_CLASS (parent_class)->event (bsink, event);
|
|
}
|
|
|
|
static GstClock *
|
|
gst_decklink_video_sink_provide_clock (GstElement * element)
|
|
{
|
|
GstDecklinkVideoSink *self = GST_DECKLINK_VIDEO_SINK_CAST (element);
|
|
|
|
if (!self->output)
|
|
return NULL;
|
|
|
|
return GST_CLOCK_CAST (gst_object_ref (self->output->clock));
|
|
}
|
|
|
|
static gboolean
|
|
gst_decklink_video_sink_propose_allocation (GstBaseSink * bsink,
|
|
GstQuery * query)
|
|
{
|
|
GstCaps *caps;
|
|
GstVideoInfo info;
|
|
GstBufferPool *pool;
|
|
guint size;
|
|
|
|
gst_query_parse_allocation (query, &caps, NULL);
|
|
|
|
if (caps == NULL)
|
|
return FALSE;
|
|
|
|
if (!gst_video_info_from_caps (&info, caps))
|
|
return FALSE;
|
|
|
|
size = GST_VIDEO_INFO_SIZE (&info);
|
|
|
|
if (gst_query_get_n_allocation_pools (query) == 0) {
|
|
GstStructure *structure;
|
|
GstAllocator *allocator = NULL;
|
|
GstAllocationParams params = { (GstMemoryFlags) 0, 15, 0, 0 };
|
|
|
|
if (gst_query_get_n_allocation_params (query) > 0)
|
|
gst_query_parse_nth_allocation_param (query, 0, &allocator, ¶ms);
|
|
else
|
|
gst_query_add_allocation_param (query, allocator, ¶ms);
|
|
|
|
pool = gst_video_buffer_pool_new ();
|
|
|
|
structure = gst_buffer_pool_get_config (pool);
|
|
gst_buffer_pool_config_set_params (structure, caps, size, 0, 0);
|
|
gst_buffer_pool_config_set_allocator (structure, allocator, ¶ms);
|
|
|
|
if (allocator)
|
|
gst_object_unref (allocator);
|
|
|
|
if (!gst_buffer_pool_set_config (pool, structure))
|
|
goto config_failed;
|
|
|
|
gst_query_add_allocation_pool (query, pool, size, 0, 0);
|
|
gst_object_unref (pool);
|
|
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
|
|
}
|
|
|
|
return TRUE;
|
|
// ERRORS
|
|
config_failed:
|
|
{
|
|
GST_ERROR_OBJECT (bsink, "failed to set config");
|
|
gst_object_unref (pool);
|
|
return FALSE;
|
|
}
|
|
}
|