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gstreamer/gst/timecode/gsttimecodestamper.c

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timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
/*
* GStreamer
* Copyright (C) 2016 Vivia Nikolaidou <vivia@toolsonair.com>
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
* Copyright (C) 2019 Sebastian Dröge <sebastian@centricular.com>
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
*
* gsttimecodestamper.c
*
* 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 St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
/**
* SECTION:element-timecodestamper
docs: Port all docstring to gtk-doc markdown
2017-03-08 18:01:13 +00:00
* @title: timecodestamper
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
* @short_description: Attach a timecode into incoming video frames
*
* This element attaches a timecode into every incoming video frame. It starts
* counting from the stream time of each segment start, which it converts into
* a timecode.
*
docs: Port all docstring to gtk-doc markdown
2017-03-08 18:01:13 +00:00
* ## Example launch line
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
* |[
* gst-launch-1.0 videotestsrc ! timecodestamper ! autovideosink
* ]|
docs: Port all docstring to gtk-doc markdown
2017-03-08 18:01:13 +00:00
*
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gsttimecodestamper.h"
#include <gst/gst.h>
#include <gst/video/video.h>
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
#include <gst/audio/audio.h>
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
#include <stdlib.h>
#include <string.h>
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
#define ABSDIFF(a,b) (((a) > (b)) ? ((a) - (b)) : ((b) - (a)))
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
GST_DEBUG_CATEGORY_STATIC (timecodestamper_debug);
#define GST_CAT_DEFAULT timecodestamper_debug
/* GstTimeCodeStamper properties */
enum
{
PROP_0,
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
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PROP_SOURCE,
PROP_SET,
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
PROP_DROP_FRAME,
timecodestamper: First timecode property Add an new property to start from a given timecode instead of zero. https://bugzilla.gnome.org/show_bug.cgi?id=778703
2017-02-22 21:26:57 +00:00
PROP_POST_MESSAGES,
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
PROP_SET_INTERNAL_TIMECODE,
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
PROP_LTC_DAILY_JAM,
PROP_LTC_AUTO_RESYNC,
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
PROP_RTC_MAX_DRIFT,
PROP_RTC_AUTO_RESYNC,
PROP_TIMECODE_OFFSET
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
};
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
#define DEFAULT_SOURCE GST_TIME_CODE_STAMPER_SOURCE_INTERNAL
#define DEFAULT_SET GST_TIME_CODE_STAMPER_SET_KEEP
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
#define DEFAULT_DROP_FRAME FALSE
timecodestamper: Post element message with current timecode timecodestamper will post an element message which contains the current timecode it just stamped. If a timecode was already found and not replaced, it will still post it in a message. https://bugzilla.gnome.org/show_bug.cgi?id=777048
2017-01-09 15:53:38 +00:00
#define DEFAULT_POST_MESSAGES FALSE
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
#define DEFAULT_SET_INTERNAL_TIMECODE NULL
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#define DEFAULT_LTC_DAILY_JAM NULL
#define DEFAULT_LTC_AUTO_RESYNC TRUE
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
#define DEFAULT_RTC_MAX_DRIFT 250000000
#define DEFAULT_RTC_AUTO_RESYNC TRUE
#define DEFAULT_TIMECODE_OFFSET 0
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#define DEFAULT_LTC_QUEUE 100
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
static GstStaticPadTemplate gst_timecodestamper_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw")
);
static GstStaticPadTemplate gst_timecodestamper_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw")
);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
static GstStaticPadTemplate gst_timecodestamper_ltc_template =
GST_STATIC_PAD_TEMPLATE ("ltc_sink",
GST_PAD_SINK,
GST_PAD_REQUEST,
GST_STATIC_CAPS ("audio/x-raw,format=U8,rate=[1,max],channels=1")
);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
static void gst_timecodestamper_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_timecodestamper_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_timecodestamper_dispose (GObject * object);
static gboolean gst_timecodestamper_sink_event (GstBaseTransform * trans,
GstEvent * event);
static GstFlowReturn gst_timecodestamper_transform_ip (GstBaseTransform *
vfilter, GstBuffer * buffer);
static gboolean gst_timecodestamper_stop (GstBaseTransform * trans);
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
static gboolean gst_timecodestamper_start (GstBaseTransform * trans);
static GstPad *gst_timecodestamper_request_new_pad (GstElement * element,
GstPadTemplate * temp, const gchar * unused, const GstCaps * caps);
static void gst_timecodestamper_release_pad (GstElement * element,
GstPad * pad);
#if HAVE_LTC
static GstFlowReturn gst_timecodestamper_ltcpad_chain (GstPad * pad,
GstObject * parent, GstBuffer * buffer);
static gboolean gst_timecodestamper_ltcpad_event (GstPad * pad,
GstObject * parent, GstEvent * event);
static gboolean gst_timecodestamper_ltcpad_query (GstPad * pad,
GstObject * parent, GstQuery * query);
static gboolean gst_timecodestamper_ltcpad_activatemode (GstPad * pad,
GstObject * parent, GstPadMode mode, gboolean active);
static gboolean gst_timecodestamper_videopad_activatemode (GstPad * pad,
GstObject * parent, GstPadMode mode, gboolean active);
static GstIterator *gst_timecodestamper_src_iterate_internal_link (GstPad * pad,
GstObject * parent);
#endif
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
static void gst_timecodestamper_update_drop_frame (GstTimeCodeStamper *
timecodestamper);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
G_DEFINE_TYPE (GstTimeCodeStamper, gst_timecodestamper,
GST_TYPE_BASE_TRANSFORM);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GType
gst_timecodestamper_source_get_type (void)
{
static GType type = 0;
static const GEnumValue values[] = {
{GST_TIME_CODE_STAMPER_SOURCE_INTERNAL,
"Use internal timecode counter, starting at zero or value set by property",
"internal"},
{GST_TIME_CODE_STAMPER_SOURCE_ZERO,
"Always use zero", "zero"},
{GST_TIME_CODE_STAMPER_SOURCE_LAST_KNOWN,
"Count up from the last known upstream timecode or internal if unknown",
"last-known"},
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
{GST_TIME_CODE_STAMPER_SOURCE_LTC,
"Linear timecode from an audio device", "ltc"},
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
{GST_TIME_CODE_STAMPER_SOURCE_RTC,
"Timecode from real time clock", "rtc"},
{0, NULL, NULL},
};
if (!type) {
type = g_enum_register_static ("GstTimeCodeStamperSource", values);
}
return type;
}
GType
gst_timecodestamper_set_get_type (void)
{
static GType type = 0;
static const GEnumValue values[] = {
{GST_TIME_CODE_STAMPER_SET_NEVER,
"Never set timecodes", "never"},
{GST_TIME_CODE_STAMPER_SET_KEEP,
"Keep upstream timecodes and only set if no upstream timecode", "keep"},
{GST_TIME_CODE_STAMPER_SET_ALWAYS,
"Always set timecode and remove upstream timecode", "always"},
{0, NULL, NULL},
};
if (!type) {
type = g_enum_register_static ("GstTimeCodeStamperSet", values);
}
return type;
}
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
static void
gst_timecodestamper_class_init (GstTimeCodeStamperClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstElementClass *element_class = (GstElementClass *) klass;
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
GST_DEBUG_CATEGORY_INIT (timecodestamper_debug, "timecodestamper", 0,
"timecodestamper");
gst_element_class_set_static_metadata (element_class, "Timecode stamper",
"Filter/Video", "Attaches a timecode meta into each video frame",
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
"Vivia Nikolaidou <vivia@toolsonair.com>");
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
gobject_class->set_property = gst_timecodestamper_set_property;
gobject_class->get_property = gst_timecodestamper_get_property;
gobject_class->dispose = gst_timecodestamper_dispose;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
g_object_class_install_property (gobject_class, PROP_SOURCE,
g_param_spec_enum ("source", "Timecode Source",
"Choose from what source the timecode should be taken",
GST_TYPE_TIME_CODE_STAMPER_SOURCE,
DEFAULT_SOURCE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SET,
g_param_spec_enum ("set", "Timecode Set",
"Choose whether timecodes should be overridden or not",
GST_TYPE_TIME_CODE_STAMPER_SET,
DEFAULT_SET, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
g_object_class_install_property (gobject_class, PROP_DROP_FRAME,
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
g_param_spec_boolean ("drop-frame", "Drop Frame",
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
"Use drop-frame timecodes for 29.97 and 59.94 FPS",
DEFAULT_DROP_FRAME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
timecodestamper: Post element message with current timecode timecodestamper will post an element message which contains the current timecode it just stamped. If a timecode was already found and not replaced, it will still post it in a message. https://bugzilla.gnome.org/show_bug.cgi?id=777048
2017-01-09 15:53:38 +00:00
g_object_class_install_property (gobject_class, PROP_POST_MESSAGES,
g_param_spec_boolean ("post-messages", "Post element message",
"Post element message containing the current timecode",
DEFAULT_POST_MESSAGES, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
g_object_class_install_property (gobject_class, PROP_SET_INTERNAL_TIMECODE,
g_param_spec_boxed ("set-internal-timecode",
"Set Internal Timecode",
"If set, take this timecode as the internal timecode for the first "
"frame and increment from it. Only the values itself and daily jam are taken, "
"flags and frame rate are always determined by timecodestamper "
"itself. If unset (and to-now is also not set), the internal timecode will "
"start at 0 with the daily jam being the current real-time clock time",
timecodestamper: First timecode property Add an new property to start from a given timecode instead of zero. https://bugzilla.gnome.org/show_bug.cgi?id=778703
2017-02-22 21:26:57 +00:00
GST_TYPE_VIDEO_TIME_CODE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
g_object_class_install_property (gobject_class, PROP_LTC_DAILY_JAM,
g_param_spec_boxed ("ltc-daily-jam",
"LTC Daily jam",
"The daily jam of the LTC timecode",
G_TYPE_DATE_TIME, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_LTC_AUTO_RESYNC,
g_param_spec_boolean ("ltc-auto-resync",
"LTC Auto Resync",
"If true and LTC timecode is used, it will be automatically "
"resynced if it drifts, otherwise it will only be initialised once",
DEFAULT_LTC_AUTO_RESYNC, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
g_object_class_install_property (gobject_class, PROP_RTC_MAX_DRIFT,
g_param_spec_uint64 ("rtc-max-drift",
"RTC Maximum Offset",
"Maximum number of nanoseconds the RTC clock is allowed to drift from "
"the video before it is resynced",
0, G_MAXUINT64, DEFAULT_RTC_MAX_DRIFT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_RTC_AUTO_RESYNC,
g_param_spec_boolean ("rtc-auto-resync",
"RTC Auto Resync",
"If true and RTC timecode is used, it will be automatically "
"resynced if it drifts, otherwise it will only be initialised once",
DEFAULT_RTC_AUTO_RESYNC, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_TIMECODE_OFFSET,
g_param_spec_int ("timecode-offset",
"Timecode Offset",
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
"Add this offset in frames to internal, LTC or RTC timecode, "
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
"useful if there is an offset between the timecode source and video",
G_MININT, G_MAXINT, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_timecodestamper_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_timecodestamper_src_template));
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_timecodestamper_ltc_template));
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
element_class->request_new_pad =
GST_DEBUG_FUNCPTR (gst_timecodestamper_request_new_pad);
element_class->release_pad =
GST_DEBUG_FUNCPTR (gst_timecodestamper_release_pad);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
trans_class->sink_event = GST_DEBUG_FUNCPTR (gst_timecodestamper_sink_event);
trans_class->stop = GST_DEBUG_FUNCPTR (gst_timecodestamper_stop);
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
trans_class->start = GST_DEBUG_FUNCPTR (gst_timecodestamper_start);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
trans_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_timecodestamper_transform_ip);
}
static void
gst_timecodestamper_init (GstTimeCodeStamper * timecodestamper)
{
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
timecodestamper->ltcpad = NULL;
timecodestamper->tc_source = GST_TIME_CODE_STAMPER_SOURCE_INTERNAL;
timecodestamper->tc_set = GST_TIME_CODE_STAMPER_SET_KEEP;
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
timecodestamper->drop_frame = DEFAULT_DROP_FRAME;
timecodestamper: Post element message with current timecode timecodestamper will post an element message which contains the current timecode it just stamped. If a timecode was already found and not replaced, it will still post it in a message. https://bugzilla.gnome.org/show_bug.cgi?id=777048
2017-01-09 15:53:38 +00:00
timecodestamper->post_messages = DEFAULT_POST_MESSAGES;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
timecodestamper->set_internal_tc = NULL;
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
timecodestamper->ltc_daily_jam = DEFAULT_LTC_DAILY_JAM;
timecodestamper->ltc_auto_resync = DEFAULT_LTC_AUTO_RESYNC;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
timecodestamper->rtc_max_drift = DEFAULT_RTC_MAX_DRIFT;
timecodestamper->rtc_auto_resync = DEFAULT_RTC_AUTO_RESYNC;
timecodestamper->timecode_offset = 0;
timecodestamper->internal_tc = NULL;
timecodestamper->last_tc = NULL;
timecodestamper->rtc_tc = NULL;
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#if HAVE_LTC
g_mutex_init (&timecodestamper->mutex);
g_cond_init (&timecodestamper->ltc_cond_video);
g_cond_init (&timecodestamper->ltc_cond_audio);
gst_segment_init (&timecodestamper->ltc_segment, GST_FORMAT_UNDEFINED);
timecodestamper->ltc_first_running_time = GST_CLOCK_TIME_NONE;
timecodestamper->ltc_current_running_time = GST_CLOCK_TIME_NONE;
timecodestamper->ltc_current_tc = NULL;
timecodestamper->ltc_current_tc_running_time = GST_CLOCK_TIME_NONE;
timecodestamper->ltc_internal_tc = NULL;
timecodestamper->ltc_dec = NULL;
timecodestamper->ltc_total = 0;
timecodestamper->ltc_eos = TRUE;
timecodestamper->ltc_flushing = TRUE;
timecodestamper->video_activatemode_default =
GST_PAD_ACTIVATEMODEFUNC (GST_BASE_TRANSFORM_SINK_PAD (timecodestamper));
GST_PAD_ACTIVATEMODEFUNC (GST_BASE_TRANSFORM_SINK_PAD (timecodestamper)) =
gst_timecodestamper_videopad_activatemode;
gst_pad_set_iterate_internal_links_function (GST_BASE_TRANSFORM_SRC_PAD
(timecodestamper), gst_timecodestamper_src_iterate_internal_link);
#endif
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
}
static void
gst_timecodestamper_dispose (GObject * object)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (object);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
if (timecodestamper->ltc_daily_jam) {
g_date_time_unref (timecodestamper->ltc_daily_jam);
timecodestamper->ltc_daily_jam = NULL;
}
if (timecodestamper->internal_tc != NULL) {
gst_video_time_code_free (timecodestamper->internal_tc);
timecodestamper->internal_tc = NULL;
}
if (timecodestamper->set_internal_tc != NULL) {
gst_video_time_code_free (timecodestamper->set_internal_tc);
timecodestamper->set_internal_tc = NULL;
}
if (timecodestamper->last_tc != NULL) {
gst_video_time_code_free (timecodestamper->last_tc);
timecodestamper->last_tc = NULL;
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
}
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
if (timecodestamper->rtc_tc != NULL) {
gst_video_time_code_free (timecodestamper->rtc_tc);
timecodestamper->rtc_tc = NULL;
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
}
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#if HAVE_LTC
g_cond_clear (&timecodestamper->ltc_cond_video);
g_cond_clear (&timecodestamper->ltc_cond_audio);
g_mutex_clear (&timecodestamper->mutex);
if (timecodestamper->ltc_current_tc != NULL) {
gst_video_time_code_free (timecodestamper->ltc_current_tc);
timecodestamper->ltc_current_tc = NULL;
}
if (timecodestamper->ltc_internal_tc != NULL) {
gst_video_time_code_free (timecodestamper->ltc_internal_tc);
timecodestamper->ltc_internal_tc = NULL;
}
if (timecodestamper->ltc_dec) {
ltc_decoder_free (timecodestamper->ltc_dec);
timecodestamper->ltc_dec = NULL;
}
if (timecodestamper->stream_align) {
gst_audio_stream_align_free (timecodestamper->stream_align);
timecodestamper->stream_align = NULL;
}
#endif
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
G_OBJECT_CLASS (gst_timecodestamper_parent_class)->dispose (object);
}
static void
gst_timecodestamper_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (object);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GST_OBJECT_LOCK (timecodestamper);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
switch (prop_id) {
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
case PROP_SOURCE:
timecodestamper->tc_source = (GstTimeCodeStamperSource)
g_value_get_enum (value);
break;
case PROP_SET:
timecodestamper->tc_set = (GstTimeCodeStamperSet)
g_value_get_enum (value);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
break;
case PROP_DROP_FRAME:
timecodestamper->drop_frame = g_value_get_boolean (value);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
gst_timecodestamper_update_drop_frame (timecodestamper);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
break;
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
case PROP_LTC_DAILY_JAM:
if (timecodestamper->ltc_daily_jam)
g_date_time_unref (timecodestamper->ltc_daily_jam);
timecodestamper->ltc_daily_jam = g_value_dup_boxed (value);
#if HAVE_LTC
if (timecodestamper->ltc_current_tc) {
if (timecodestamper->ltc_current_tc->config.latest_daily_jam) {
g_date_time_unref (timecodestamper->ltc_current_tc->config.
latest_daily_jam);
}
timecodestamper->ltc_current_tc->config.latest_daily_jam =
g_date_time_ref (timecodestamper->ltc_daily_jam);
}
if (timecodestamper->ltc_internal_tc) {
if (timecodestamper->ltc_internal_tc->config.latest_daily_jam) {
g_date_time_unref (timecodestamper->ltc_internal_tc->config.
latest_daily_jam);
}
timecodestamper->ltc_internal_tc->config.latest_daily_jam =
g_date_time_ref (timecodestamper->ltc_daily_jam);
}
#endif
break;
timecodestamper: Post element message with current timecode timecodestamper will post an element message which contains the current timecode it just stamped. If a timecode was already found and not replaced, it will still post it in a message. https://bugzilla.gnome.org/show_bug.cgi?id=777048
2017-01-09 15:53:38 +00:00
case PROP_POST_MESSAGES:
timecodestamper->post_messages = g_value_get_boolean (value);
break;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
case PROP_SET_INTERNAL_TIMECODE:{
if (timecodestamper->set_internal_tc)
gst_video_time_code_free (timecodestamper->set_internal_tc);
timecodestamper->set_internal_tc = g_value_dup_boxed (value);
/* Reset the internal timecode on the next opportunity if a new
* timecode was set here. If none was set we just continue counting
* from the previous one */
if (timecodestamper->set_internal_tc && timecodestamper->internal_tc) {
gst_video_time_code_free (timecodestamper->internal_tc);
timecodestamper->internal_tc = NULL;
}
break;
}
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
case PROP_LTC_AUTO_RESYNC:
timecodestamper->ltc_auto_resync = g_value_get_boolean (value);
break;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
case PROP_RTC_MAX_DRIFT:
timecodestamper->rtc_max_drift = g_value_get_uint64 (value);
break;
case PROP_RTC_AUTO_RESYNC:
timecodestamper->rtc_auto_resync = g_value_get_boolean (value);
timecodestamper: First timecode property Add an new property to start from a given timecode instead of zero. https://bugzilla.gnome.org/show_bug.cgi?id=778703
2017-02-22 21:26:57 +00:00
break;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
case PROP_TIMECODE_OFFSET:
timecodestamper->timecode_offset = g_value_get_int (value);
timecodestamper: First timecode from current system time Add a new flag which automatically sets this first timecode to the current system time in local time zone. https://bugzilla.gnome.org/show_bug.cgi?id=778703
2017-02-22 21:30:17 +00:00
break;
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GST_OBJECT_UNLOCK (timecodestamper);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
}
static void
gst_timecodestamper_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (object);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GST_OBJECT_LOCK (timecodestamper);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
switch (prop_id) {
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
case PROP_SOURCE:
g_value_set_enum (value, timecodestamper->tc_source);
break;
case PROP_SET:
g_value_set_enum (value, timecodestamper->tc_set);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
break;
case PROP_DROP_FRAME:
g_value_set_boolean (value, timecodestamper->drop_frame);
break;
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
case PROP_LTC_DAILY_JAM:
g_value_set_boxed (value, timecodestamper->ltc_daily_jam);
break;
timecodestamper: Post element message with current timecode timecodestamper will post an element message which contains the current timecode it just stamped. If a timecode was already found and not replaced, it will still post it in a message. https://bugzilla.gnome.org/show_bug.cgi?id=777048
2017-01-09 15:53:38 +00:00
case PROP_POST_MESSAGES:
g_value_set_boolean (value, timecodestamper->post_messages);
break;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
case PROP_SET_INTERNAL_TIMECODE:
g_value_set_boxed (value, timecodestamper->set_internal_tc);
break;
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
case PROP_LTC_AUTO_RESYNC:
g_value_set_boolean (value, timecodestamper->ltc_auto_resync);
break;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
case PROP_RTC_MAX_DRIFT:
g_value_set_uint64 (value, timecodestamper->rtc_max_drift);
timecodestamper: First timecode property Add an new property to start from a given timecode instead of zero. https://bugzilla.gnome.org/show_bug.cgi?id=778703
2017-02-22 21:26:57 +00:00
break;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
case PROP_RTC_AUTO_RESYNC:
g_value_set_boolean (value, timecodestamper->rtc_auto_resync);
break;
case PROP_TIMECODE_OFFSET:
g_value_set_int (value, timecodestamper->timecode_offset);
timecodestamper: First timecode from current system time Add a new flag which automatically sets this first timecode to the current system time in local time zone. https://bugzilla.gnome.org/show_bug.cgi?id=778703
2017-02-22 21:30:17 +00:00
break;
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GST_OBJECT_UNLOCK (timecodestamper);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
}
static gboolean
gst_timecodestamper_stop (GstBaseTransform * trans)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (trans);
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#if HAVE_LTC
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->video_flushing = TRUE;
timecodestamper->ltc_flushing = TRUE;
g_cond_signal (&timecodestamper->ltc_cond_video);
g_cond_signal (&timecodestamper->ltc_cond_audio);
g_mutex_unlock (&timecodestamper->mutex);
#endif
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
gst_video_info_init (&timecodestamper->vinfo);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
if (timecodestamper->internal_tc != NULL) {
gst_video_time_code_free (timecodestamper->internal_tc);
timecodestamper->internal_tc = NULL;
}
if (timecodestamper->rtc_tc != NULL) {
gst_video_time_code_free (timecodestamper->rtc_tc);
timecodestamper->rtc_tc = NULL;
}
if (timecodestamper->last_tc != NULL) {
gst_video_time_code_free (timecodestamper->last_tc);
timecodestamper->last_tc = NULL;
}
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#if HAVE_LTC
g_mutex_lock (&timecodestamper->mutex);
gst_audio_info_init (&timecodestamper->ainfo);
gst_segment_init (&timecodestamper->ltc_segment, GST_FORMAT_UNDEFINED);
timecodestamper->ltc_first_running_time = GST_CLOCK_TIME_NONE;
timecodestamper->ltc_current_running_time = GST_CLOCK_TIME_NONE;
if (timecodestamper->ltc_internal_tc != NULL) {
gst_video_time_code_free (timecodestamper->ltc_internal_tc);
timecodestamper->ltc_internal_tc = NULL;
}
if (timecodestamper->ltc_current_tc != NULL) {
gst_video_time_code_free (timecodestamper->ltc_current_tc);
timecodestamper->ltc_current_tc = NULL;
}
timecodestamper->ltc_current_tc_running_time = GST_CLOCK_TIME_NONE;
if (timecodestamper->ltc_dec) {
ltc_decoder_free (timecodestamper->ltc_dec);
timecodestamper->ltc_dec = NULL;
}
if (timecodestamper->stream_align) {
gst_audio_stream_align_free (timecodestamper->stream_align);
timecodestamper->stream_align = NULL;
}
timecodestamper->ltc_total = 0;
g_mutex_unlock (&timecodestamper->mutex);
#endif
return TRUE;
}
static gboolean
gst_timecodestamper_start (GstBaseTransform * trans)
{
#if HAVE_LTC
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (trans);
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->video_flushing = FALSE;
timecodestamper->video_eos = FALSE;
g_mutex_unlock (&timecodestamper->mutex);
#endif
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
return TRUE;
}
/* Must be called with object lock */
static void
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
gst_timecodestamper_update_drop_frame (GstTimeCodeStamper * timecodestamper)
{
if (timecodestamper->drop_frame && timecodestamper->vinfo.fps_d == 1001 &&
(timecodestamper->vinfo.fps_n == 30000 ||
timecodestamper->vinfo.fps_n == 60000)) {
if (timecodestamper->internal_tc)
timecodestamper->internal_tc->config.flags |=
GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
if (timecodestamper->rtc_tc)
timecodestamper->rtc_tc->config.flags |=
GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#if HAVE_LTC
if (timecodestamper->ltc_current_tc)
timecodestamper->ltc_current_tc->config.flags |=
GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
if (timecodestamper->ltc_internal_tc)
timecodestamper->ltc_internal_tc->config.flags |=
GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
#endif
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
} else {
if (timecodestamper->internal_tc)
timecodestamper->internal_tc->config.flags &=
~GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
if (timecodestamper->rtc_tc)
timecodestamper->rtc_tc->config.flags &=
~GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#if HAVE_LTC
if (timecodestamper->ltc_current_tc)
timecodestamper->ltc_current_tc->config.flags &=
~GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
if (timecodestamper->ltc_internal_tc)
timecodestamper->ltc_internal_tc->config.flags &=
~GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
#endif
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
}
}
static void
gst_timecodestamper_update_timecode_framerate (GstTimeCodeStamper *
timecodestamper, const GstVideoInfo * vinfo, GstVideoTimeCode * timecode)
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
{
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
guint64 nframes;
GstClockTime time;
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
GDateTime *jam = NULL;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GstVideoTimeCodeFlags tc_flags = 0;
if (!timecode)
return;
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
if (timecodestamper->vinfo.interlace_mode !=
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE)
tc_flags |= GST_VIDEO_TIME_CODE_FLAGS_INTERLACED;
if (timecodestamper->drop_frame && timecodestamper->vinfo.fps_d == 1001 &&
(timecodestamper->vinfo.fps_n == 30000 ||
timecodestamper->vinfo.fps_n == 60000))
tc_flags |= GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
nframes = gst_video_time_code_frames_since_daily_jam (timecode);
time =
gst_util_uint64_scale (nframes, GST_SECOND * timecodestamper->vinfo.fps_d,
timecodestamper->vinfo.fps_n);
jam =
timecode->config.latest_daily_jam ? g_date_time_ref (timecode->
config.latest_daily_jam) : NULL;
gst_video_time_code_clear (timecode);
gst_video_time_code_init (timecode, timecodestamper->vinfo.fps_n,
timecodestamper->vinfo.fps_d, jam, tc_flags, 0, 0, 0, 0, 0);
timecodestamper: Only unref daily jam if not NULL
2017-03-08 13:52:43 +00:00
if (jam)
g_date_time_unref (jam);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
nframes =
gst_util_uint64_scale (time, vinfo->fps_n, GST_SECOND * vinfo->fps_d);
gst_video_time_code_add_frames (timecode, nframes);
}
/* Must be called with object lock */
static void
gst_timecodestamper_update_framerate (GstTimeCodeStamper * timecodestamper,
const GstVideoInfo * vinfo)
{
/* Nothing changed */
if (vinfo->fps_n == timecodestamper->vinfo.fps_n &&
vinfo->fps_d == timecodestamper->vinfo.fps_d)
return;
gst_timecodestamper_update_timecode_framerate (timecodestamper, vinfo,
timecodestamper->internal_tc);
gst_timecodestamper_update_timecode_framerate (timecodestamper, vinfo,
timecodestamper->last_tc);
gst_timecodestamper_update_timecode_framerate (timecodestamper, vinfo,
timecodestamper->rtc_tc);
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#if HAVE_LTC
gst_timecodestamper_update_timecode_framerate (timecodestamper, vinfo,
timecodestamper->ltc_current_tc);
gst_timecodestamper_update_timecode_framerate (timecodestamper, vinfo,
timecodestamper->ltc_internal_tc);
#endif
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
}
static gboolean
gst_timecodestamper_sink_event (GstBaseTransform * trans, GstEvent * event)
{
gboolean ret = FALSE;
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (trans);
GST_DEBUG_OBJECT (trans, "received event %" GST_PTR_FORMAT, event);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:
{
GstSegment segment;
gst_event_copy_segment (event, &segment);
if (segment.format != GST_FORMAT_TIME) {
GST_ERROR_OBJECT (timecodestamper, "Invalid segment format");
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
gst_event_unref (event);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
return FALSE;
}
break;
}
case GST_EVENT_CAPS:
{
GstCaps *caps;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GstVideoInfo info;
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
Revert "WIP: Revert "Revert "timecodestamper: LTC from audio""" This reverts commit e0be05dc7059cc97dceb70a48ca9cad4ee2edce6.
2018-01-04 13:41:49 +00:00
GST_OBJECT_LOCK (timecodestamper);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
gst_event_parse_caps (event, &caps);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
if (!gst_video_info_from_caps (&info, caps)) {
GST_OBJECT_UNLOCK (timecodestamper);
gst_event_unref (event);
return FALSE;
}
if (info.fps_n == 0) {
GST_WARNING_OBJECT (timecodestamper,
"Non-constant frame rate found. Refusing to create a timecode");
Revert "WIP: Revert "Revert "timecodestamper: LTC from audio""" This reverts commit e0be05dc7059cc97dceb70a48ca9cad4ee2edce6.
2018-01-04 13:41:49 +00:00
GST_OBJECT_UNLOCK (timecodestamper);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
gst_event_unref (event);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
return FALSE;
}
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
gst_timecodestamper_update_framerate (timecodestamper, &info);
timecodestamper->vinfo = info;
Revert "WIP: Revert "Revert "timecodestamper: LTC from audio""" This reverts commit e0be05dc7059cc97dceb70a48ca9cad4ee2edce6.
2018-01-04 13:41:49 +00:00
GST_OBJECT_UNLOCK (timecodestamper);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
break;
}
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#if HAVE_LTC
case GST_EVENT_FLUSH_START:
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->video_flushing = TRUE;
g_cond_signal (&timecodestamper->ltc_cond_video);
g_mutex_unlock (&timecodestamper->mutex);
break;
case GST_EVENT_FLUSH_STOP:
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->video_flushing = FALSE;
timecodestamper->video_eos = FALSE;
g_mutex_unlock (&timecodestamper->mutex);
break;
case GST_EVENT_EOS:
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->video_eos = TRUE;
g_cond_signal (&timecodestamper->ltc_cond_audio);
g_mutex_unlock (&timecodestamper->mutex);
break;
#endif
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
default:
break;
}
ret =
GST_BASE_TRANSFORM_CLASS (gst_timecodestamper_parent_class)->sink_event
(trans, event);
return ret;
}
timecodestamper: Remove all existing timecode metas if requested to override existing
2016-11-24 12:41:59 +00:00
static gboolean
remove_timecode_meta (GstBuffer * buffer, GstMeta ** meta, gpointer user_data)
{
if (meta && *meta && (*meta)->info->api == GST_VIDEO_TIME_CODE_META_API_TYPE) {
*meta = NULL;
}
return TRUE;
}
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
static GstFlowReturn
gst_timecodestamper_transform_ip (GstBaseTransform * vfilter,
GstBuffer * buffer)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (vfilter);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GstClockTime running_time, base_time, clock_time;
GstClock *clock;
GstClockTime clock_time_now;
GDateTime *dt_now, *dt_frame;
GstVideoTimeCode *tc = NULL;
gboolean free_tc = FALSE;
Revert "WIP: Revert "Revert "timecodestamper: LTC from audio""" This reverts commit e0be05dc7059cc97dceb70a48ca9cad4ee2edce6.
2018-01-04 13:41:49 +00:00
GstVideoTimeCodeMeta *tc_meta;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GstFlowReturn flow_ret = GST_FLOW_OK;
GstVideoTimeCodeFlags tc_flags = 0;
if (timecodestamper->vinfo.fps_n == 0 || timecodestamper->vinfo.fps_d == 0
|| !GST_BUFFER_PTS_IS_VALID (buffer)) {
gst_buffer_unref (buffer);
return GST_FLOW_NOT_NEGOTIATED;
}
/* Collect all the current times */
base_time = gst_element_get_base_time (GST_ELEMENT (timecodestamper));
clock = gst_element_get_clock (GST_ELEMENT (timecodestamper));
if (clock) {
clock_time_now = gst_clock_get_time (clock);
gst_object_unref (clock);
} else {
clock_time_now = GST_CLOCK_TIME_NONE;
}
dt_now = g_date_time_new_now_local ();
running_time =
gst_segment_to_running_time (&vfilter->segment, GST_FORMAT_TIME,
GST_BUFFER_PTS (buffer));
if (clock_time_now != GST_CLOCK_TIME_NONE) {
gdouble seconds_diff;
clock_time = running_time + base_time;
if (clock_time_now > clock_time) {
seconds_diff = (clock_time_now - clock_time) / -1000000000.0;
} else {
seconds_diff = (clock_time - clock_time_now) / 1000000000.0;
}
dt_frame = g_date_time_add_seconds (dt_now, seconds_diff);
} else {
/* If we have no clock we can't really know the time of the frame */
dt_frame = g_date_time_ref (dt_now);
}
GST_DEBUG_OBJECT (timecodestamper,
"Handling video frame with running time %" GST_TIME_FORMAT,
GST_TIME_ARGS (running_time));
Revert "WIP: Revert "Revert "timecodestamper: LTC from audio""" This reverts commit e0be05dc7059cc97dceb70a48ca9cad4ee2edce6.
2018-01-04 13:41:49 +00:00
tc_meta = gst_buffer_get_video_time_code_meta (buffer);
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
/* Update all our internal timecodes as needed */
GST_OBJECT_LOCK (timecodestamper);
if (timecodestamper->vinfo.interlace_mode !=
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE)
tc_flags |= GST_VIDEO_TIME_CODE_FLAGS_INTERLACED;
if (timecodestamper->drop_frame && timecodestamper->vinfo.fps_d == 1001 &&
(timecodestamper->vinfo.fps_n == 30000 ||
timecodestamper->vinfo.fps_n == 60000))
tc_flags |= GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME;
/* If we don't have an internal timecode yet then either a new one was just
* set via the property or we just started. Initialize it here, otherwise
* increment it by one */
if (!timecodestamper->internal_tc) {
gchar *tc_str;
if (timecodestamper->set_internal_tc)
timecodestamper->internal_tc =
gst_video_time_code_new (timecodestamper->vinfo.fps_n,
timecodestamper->vinfo.fps_d,
timecodestamper->set_internal_tc->config.latest_daily_jam,
tc_flags,
timecodestamper->set_internal_tc->hours,
timecodestamper->set_internal_tc->minutes,
timecodestamper->set_internal_tc->seconds,
timecodestamper->set_internal_tc->frames,
timecodestamper->set_internal_tc->field_count);
else
timecodestamper->internal_tc =
gst_video_time_code_new (timecodestamper->vinfo.fps_n,
timecodestamper->vinfo.fps_d, dt_frame, tc_flags, 0, 0, 0, 0, 0);
tc_str = gst_video_time_code_to_string (timecodestamper->internal_tc);
GST_DEBUG_OBJECT (timecodestamper, "Initialized internal timecode to %s",
tc_str);
g_free (tc_str);
} else {
gchar *tc_str;
gst_video_time_code_increment_frame (timecodestamper->internal_tc);
tc_str = gst_video_time_code_to_string (timecodestamper->internal_tc);
GST_DEBUG_OBJECT (timecodestamper, "Incremented internal timecode to %s",
tc_str);
g_free (tc_str);
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
}
timecodestamper: Remove all existing timecode metas if requested to override existing
2016-11-24 12:41:59 +00:00
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
/* If we have a new timecode on the incoming frame, update our last known
* timecode or otherwise increment it by one */
if (tc_meta) {
gchar *tc_str;
if (timecodestamper->last_tc)
gst_video_time_code_free (timecodestamper->last_tc);
timecodestamper->last_tc = gst_video_time_code_copy (&tc_meta->tc);
tc_str = gst_video_time_code_to_string (timecodestamper->last_tc);
GST_DEBUG_OBJECT (timecodestamper, "Updated upstream timecode to %s",
tc_str);
g_free (tc_str);
} else {
gchar *tc_str;
if (timecodestamper->last_tc) {
gst_video_time_code_increment_frame (timecodestamper->last_tc);
} else {
/* We have no last known timecode so initialize with 0 here */
timecodestamper->last_tc =
gst_video_time_code_new (timecodestamper->vinfo.fps_n,
timecodestamper->vinfo.fps_d, dt_frame, tc_flags, 0, 0, 0, 0, 0);
}
tc_str = gst_video_time_code_to_string (timecodestamper->last_tc);
GST_DEBUG_OBJECT (timecodestamper, "Incremented upstream timecode to %s",
tc_str);
g_free (tc_str);
}
/* Update RTC-based timecode */
{
GstVideoTimeCode rtc_timecode_now;
gchar *tc_str, *dt_str;
/* Create timecode for the current frame time */
memset (&rtc_timecode_now, 0, sizeof (rtc_timecode_now));
gst_video_time_code_init_from_date_time_full (&rtc_timecode_now,
timecodestamper->vinfo.fps_n, timecodestamper->vinfo.fps_d, dt_frame,
tc_flags, 0);
tc_str = gst_video_time_code_to_string (&rtc_timecode_now);
dt_str = g_date_time_format (dt_frame, "%F %R %z");
GST_DEBUG_OBJECT (timecodestamper,
"Created RTC timecode %s for %s (%06u us)", tc_str, dt_str,
g_date_time_get_microsecond (dt_frame));
g_free (dt_str);
g_free (tc_str);
/* If we don't have an RTC timecode yet, directly initialize with this one */
if (!timecodestamper->rtc_tc) {
timecodestamper->rtc_tc = gst_video_time_code_copy (&rtc_timecode_now);
tc_str = gst_video_time_code_to_string (timecodestamper->rtc_tc);
GST_DEBUG_OBJECT (timecodestamper, "Initialized RTC timecode to %s",
tc_str);
g_free (tc_str);
} else {
GstClockTime rtc_now_time, rtc_tc_time;
GstClockTime rtc_diff;
/* Increment the old RTC timecode to this frame */
gst_video_time_code_increment_frame (timecodestamper->rtc_tc);
/* Otherwise check if we drifted too much and need to resync */
rtc_tc_time =
gst_video_time_code_nsec_since_daily_jam (timecodestamper->rtc_tc);
rtc_now_time =
gst_video_time_code_nsec_since_daily_jam (&rtc_timecode_now);
if (rtc_tc_time > rtc_now_time)
rtc_diff = rtc_tc_time - rtc_now_time;
else
rtc_diff = rtc_now_time - rtc_tc_time;
if (timecodestamper->rtc_auto_resync
&& timecodestamper->rtc_max_drift != GST_CLOCK_TIME_NONE
&& rtc_diff > timecodestamper->rtc_max_drift) {
gst_video_time_code_free (timecodestamper->rtc_tc);
timecodestamper->rtc_tc = gst_video_time_code_copy (&rtc_timecode_now);
tc_str = gst_video_time_code_to_string (timecodestamper->rtc_tc);
GST_DEBUG_OBJECT (timecodestamper,
"Updated RTC timecode to %s (%s%" GST_TIME_FORMAT " drift)", tc_str,
(rtc_tc_time > rtc_now_time ? "-" : "+"), GST_TIME_ARGS (rtc_diff));
g_free (tc_str);
} else {
/* Else nothing to do here, we use the current one */
tc_str = gst_video_time_code_to_string (timecodestamper->rtc_tc);
GST_DEBUG_OBJECT (timecodestamper,
"Incremented RTC timecode to %s (%s%" GST_TIME_FORMAT " drift)",
tc_str, (rtc_tc_time > rtc_now_time ? "-" : "+"),
GST_TIME_ARGS (rtc_diff));
g_free (tc_str);
}
}
gst_video_time_code_clear (&rtc_timecode_now);
}
Revert "WIP: Revert "Revert "timecodestamper: LTC from audio""" This reverts commit e0be05dc7059cc97dceb70a48ca9cad4ee2edce6.
2018-01-04 13:41:49 +00:00
GST_OBJECT_UNLOCK (timecodestamper);
timecodestamper: Post element message with current timecode timecodestamper will post an element message which contains the current timecode it just stamped. If a timecode was already found and not replaced, it will still post it in a message. https://bugzilla.gnome.org/show_bug.cgi?id=777048
2017-01-09 15:53:38 +00:00
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
/* Update LTC-based timecode as needed */
#if HAVE_LTC
{
GstClockTime frame_duration;
gchar *tc_str;
LTCFrameExt ltc_frame;
gboolean updated_internal = FALSE;
frame_duration = gst_util_uint64_scale_int_ceil (GST_SECOND,
timecodestamper->vinfo.fps_d, timecodestamper->vinfo.fps_n);
g_mutex_lock (&timecodestamper->mutex);
/* Wait until the the audio is at least 2 frame durations ahead of the
* video to allow for some slack, or the video pad is flushing or the
* LTC pad is EOS. */
while ((timecodestamper->ltc_current_running_time == GST_CLOCK_TIME_NONE
|| timecodestamper->ltc_current_running_time <
running_time + 2 * frame_duration)
&& !timecodestamper->video_flushing && !timecodestamper->ltc_eos) {
g_cond_wait (&timecodestamper->ltc_cond_video, &timecodestamper->mutex);
}
if (timecodestamper->video_flushing) {
g_mutex_unlock (&timecodestamper->mutex);
flow_ret = GST_FLOW_FLUSHING;
goto out;
}
GST_OBJECT_LOCK (timecodestamper);
/* Take timecodes out of the queue until we're at the current video
* position, but first check the last timecode we took out of the queue
* if any. */
while (timecodestamper->ltc_dec && (timecodestamper->ltc_current_tc
|| ltc_decoder_read (timecodestamper->ltc_dec, &ltc_frame) == 1)) {
GstVideoTimeCode ltc_read_tc, *ltc_read_tc_ptr = NULL;
GstClockTime ltc_running_time;
memset (&ltc_read_tc, 0, sizeof (ltc_read_tc));
if (timecodestamper->ltc_current_tc) {
ltc_running_time = timecodestamper->ltc_current_tc_running_time;
ltc_read_tc_ptr = timecodestamper->ltc_current_tc;
tc_str =
gst_video_time_code_to_string (timecodestamper->ltc_current_tc);
GST_INFO_OBJECT (timecodestamper,
"Using previous LTC timecode %s at %" GST_TIME_FORMAT, tc_str,
GST_TIME_ARGS (ltc_running_time));
g_free (tc_str);
} else {
SMPTETimecode stc;
gint fps_n_div;
if (ltc_frame.off_start < 0) {
GstClockTime offset =
gst_util_uint64_scale (GST_SECOND, -ltc_frame.off_start,
timecodestamper->ainfo.rate);
if (offset > timecodestamper->ltc_first_running_time)
ltc_running_time = 0;
else
ltc_running_time = timecodestamper->ltc_first_running_time - offset;
} else {
ltc_running_time = timecodestamper->ltc_first_running_time +
gst_util_uint64_scale (GST_SECOND, ltc_frame.off_start,
timecodestamper->ainfo.rate);
}
ltc_frame_to_time (&stc, &ltc_frame.ltc, 0);
GST_INFO_OBJECT (timecodestamper,
"Got LTC timecode %02d:%02d:%02d:%02d at %" GST_TIME_FORMAT,
stc.hours, stc.mins, stc.secs, stc.frame,
GST_TIME_ARGS (ltc_running_time));
fps_n_div =
((gdouble) timecodestamper->vinfo.fps_n) /
timecodestamper->vinfo.fps_d > 30 ? 2 : 1;
gst_video_time_code_clear (&ltc_read_tc);
gst_video_time_code_init (&ltc_read_tc,
timecodestamper->vinfo.fps_n / fps_n_div,
timecodestamper->vinfo.fps_d,
timecodestamper->ltc_daily_jam,
tc_flags, stc.hours, stc.mins, stc.secs, stc.frame, 0);
ltc_read_tc_ptr = &ltc_read_tc;
}
/* A timecode frame that starts +/- half a frame to the
* video frame is considered belonging to that video frame.
*
* If it's further ahead than half a frame duration, break out of
* the loop here and reconsider on the next frame. */
if (ABSDIFF (running_time, ltc_running_time) <= frame_duration / 2) {
/* If we're resyncing LTC in general, directly replace the current
* LTC timecode with the new one we read. Otherwise we'll continue
* counting based on the previous timecode we had
*/
if (timecodestamper->ltc_auto_resync) {
if (timecodestamper->ltc_internal_tc)
gst_video_time_code_free (timecodestamper->ltc_internal_tc);
timecodestamper: Validate LTC timestamps before trying to use them There's no point in working with invalid LTC timestamps as all future calculations will be wrong based on this, and invalid LTC timestamps can sometimes be read via the audio input.
2019-07-25 15:27:30 +00:00
if (gst_video_time_code_is_valid (ltc_read_tc_ptr)) {
timecodestamper->ltc_internal_tc =
gst_video_time_code_copy (ltc_read_tc_ptr);
updated_internal = TRUE;
GST_INFO_OBJECT (timecodestamper, "Resynced internal LTC counter");
} else {
tc_str = gst_video_time_code_to_string (ltc_read_tc_ptr);
GST_INFO_OBJECT (timecodestamper, "Invalid LTC timecode %s",
tc_str);
g_free (tc_str);
}
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
}
/* And store it for the next frame in case it has more or less the
* same running time */
timecodestamper->ltc_current_tc =
gst_video_time_code_copy (ltc_read_tc_ptr);
timecodestamper->ltc_current_tc_running_time = ltc_running_time;
gst_video_time_code_clear (&ltc_read_tc);
break;
} else if (ltc_running_time > running_time
&& ltc_running_time - running_time > frame_duration / 2) {
/* Store it for the next frame */
timecodestamper->ltc_current_tc =
gst_video_time_code_copy (ltc_read_tc_ptr);
timecodestamper->ltc_current_tc_running_time = ltc_running_time;
gst_video_time_code_clear (&ltc_read_tc);
break;
}
/* otherwise it's in the past and we need to consider the next
* timecode. Forget the current timecode and read a new one */
if (timecodestamper->ltc_current_tc) {
gst_video_time_code_free (timecodestamper->ltc_current_tc);
timecodestamper->ltc_current_tc = NULL;
timecodestamper->ltc_current_tc_running_time = GST_CLOCK_TIME_NONE;
}
gst_video_time_code_clear (&ltc_read_tc);
}
/* If we didn't update from LTC above, increment our internal timecode
* for this frame */
if (!updated_internal && timecodestamper->ltc_internal_tc) {
gst_video_time_code_increment_frame (timecodestamper->ltc_internal_tc);
}
if (timecodestamper->ltc_internal_tc) {
tc_str = gst_video_time_code_to_string (timecodestamper->ltc_internal_tc);
GST_DEBUG_OBJECT (timecodestamper, "Updated LTC timecode to %s", tc_str);
g_free (tc_str);
} else {
GST_DEBUG_OBJECT (timecodestamper, "Have no LTC timecode yet");
}
GST_OBJECT_UNLOCK (timecodestamper);
g_cond_signal (&timecodestamper->ltc_cond_audio);
g_mutex_unlock (&timecodestamper->mutex);
}
#endif
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
GST_OBJECT_LOCK (timecodestamper);
switch (timecodestamper->tc_source) {
case GST_TIME_CODE_STAMPER_SOURCE_INTERNAL:
tc = timecodestamper->internal_tc;
break;
case GST_TIME_CODE_STAMPER_SOURCE_ZERO:
tc = gst_video_time_code_new (timecodestamper->vinfo.fps_n,
timecodestamper->vinfo.fps_d, NULL, tc_flags, 0, 0, 0, 0, 0);
free_tc = TRUE;
break;
case GST_TIME_CODE_STAMPER_SOURCE_LAST_KNOWN:
tc = timecodestamper->last_tc;
break;
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
case GST_TIME_CODE_STAMPER_SOURCE_LTC:
#if HAVE_LTC
if (timecodestamper->ltc_current_tc)
tc = timecodestamper->ltc_current_tc;
#endif
if (!tc) {
tc = gst_video_time_code_new (timecodestamper->vinfo.fps_n,
timecodestamper->vinfo.fps_d, NULL, tc_flags, 0, 0, 0, 0, 0);
free_tc = TRUE;
}
break;
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
case GST_TIME_CODE_STAMPER_SOURCE_RTC:
tc = timecodestamper->rtc_tc;
break;
}
switch (timecodestamper->tc_set) {
case GST_TIME_CODE_STAMPER_SET_NEVER:
break;
case GST_TIME_CODE_STAMPER_SET_KEEP:
if (!tc_meta && tc) {
gchar *tc_str;
if (timecodestamper->timecode_offset) {
if (!free_tc) {
tc = gst_video_time_code_copy (tc);
free_tc = TRUE;
}
gst_video_time_code_add_frames (tc, timecodestamper->timecode_offset);
}
tc_str = gst_video_time_code_to_string (tc);
GST_DEBUG_OBJECT (timecodestamper, "Storing timecode %s", tc_str);
g_free (tc_str);
gst_buffer_add_video_time_code_meta (buffer, tc);
}
break;
case GST_TIME_CODE_STAMPER_SET_ALWAYS:
gst_buffer_foreach_meta (buffer, remove_timecode_meta, NULL);
if (tc) {
gchar *tc_str;
if (timecodestamper->timecode_offset) {
if (!free_tc) {
tc = gst_video_time_code_copy (tc);
free_tc = TRUE;
}
gst_video_time_code_add_frames (tc, timecodestamper->timecode_offset);
}
tc_str = gst_video_time_code_to_string (tc);
GST_DEBUG_OBJECT (timecodestamper, "Storing timecode %s", tc_str);
g_free (tc_str);
gst_buffer_add_video_time_code_meta (buffer, tc);
}
break;
}
GST_OBJECT_UNLOCK (timecodestamper);
if (timecodestamper->post_messages && tc) {
timecodestamper: Post element message with current timecode timecodestamper will post an element message which contains the current timecode it just stamped. If a timecode was already found and not replaced, it will still post it in a message. https://bugzilla.gnome.org/show_bug.cgi?id=777048
2017-01-09 15:53:38 +00:00
GstClockTime stream_time, running_time, duration;
GstStructure *s;
GstMessage *msg;
running_time =
gst_segment_to_running_time (&vfilter->segment, GST_FORMAT_TIME,
GST_BUFFER_PTS (buffer));
stream_time =
gst_segment_to_stream_time (&vfilter->segment, GST_FORMAT_TIME,
GST_BUFFER_PTS (buffer));
duration =
gst_util_uint64_scale_int (GST_SECOND, timecodestamper->vinfo.fps_d,
timecodestamper->vinfo.fps_n);
s = gst_structure_new ("timecodestamper", "timestamp", G_TYPE_UINT64,
GST_BUFFER_PTS (buffer), "stream-time", G_TYPE_UINT64, stream_time,
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
"running-time", G_TYPE_UINT64, running_time, "duration",
G_TYPE_UINT64, duration, "timecode", GST_TYPE_VIDEO_TIME_CODE, tc,
NULL);
timecodestamper: Post element message with current timecode timecodestamper will post an element message which contains the current timecode it just stamped. If a timecode was already found and not replaced, it will still post it in a message. https://bugzilla.gnome.org/show_bug.cgi?id=777048
2017-01-09 15:53:38 +00:00
msg = gst_message_new_element (GST_OBJECT (timecodestamper), s);
gst_element_post_message (GST_ELEMENT (timecodestamper), msg);
}
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
#if HAVE_LTC
out:
#endif
timecodestamper: Rewrite element API and code flow We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
2019-07-01 10:42:16 +00:00
if (dt_now)
g_date_time_unref (dt_now);
if (dt_frame)
g_date_time_unref (dt_frame);
if (free_tc && tc)
gst_video_time_code_free (tc);
return flow_ret;
timecodestamper: New element to attach SMPTE timecode to buffers The timecodestamper element attaches a SMPTE timecode to each video buffer. This timecode corresponds to the current stream time. https://bugzilla.gnome.org/show_bug.cgi?id=766419
2016-05-20 15:17:52 +00:00
}
timecodestamper: Add support for linear timecode (LTC) from an audio stream Based on a patch by Georg Lippitsch <glippitsch@toolsonair.com> Vivia Nikolaidou <vivia@toolsonair.com> Using libltc from https://github.com/x42/libltc
2019-07-01 10:43:28 +00:00
static GstPad *
gst_timecodestamper_request_new_pad (GstElement * element,
GstPadTemplate * templ, const gchar * name_templ, const GstCaps * caps)
{
#if HAVE_LTC
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (element);
GST_OBJECT_LOCK (timecodestamper);
if (timecodestamper->ltcpad) {
GST_OBJECT_UNLOCK (timecodestamper);
return NULL;
}
timecodestamper->ltcpad = gst_pad_new_from_static_template
(&gst_timecodestamper_ltc_template, "ltc");
gst_pad_set_chain_function (timecodestamper->ltcpad,
GST_DEBUG_FUNCPTR (gst_timecodestamper_ltcpad_chain));
gst_pad_set_event_function (timecodestamper->ltcpad,
GST_DEBUG_FUNCPTR (gst_timecodestamper_ltcpad_event));
gst_pad_set_query_function (timecodestamper->ltcpad,
GST_DEBUG_FUNCPTR (gst_timecodestamper_ltcpad_query));
gst_pad_set_activatemode_function (timecodestamper->ltcpad,
GST_DEBUG_FUNCPTR (gst_timecodestamper_ltcpad_activatemode));
GST_OBJECT_UNLOCK (timecodestamper);
gst_element_add_pad (element, timecodestamper->ltcpad);
return timecodestamper->ltcpad;
#else
return NULL;
#endif
}
static void
gst_timecodestamper_release_pad (GstElement * element, GstPad * pad)
{
#if HAVE_LTC
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (element);
GST_OBJECT_LOCK (timecodestamper);
if (timecodestamper->ltcpad != pad) {
GST_OBJECT_UNLOCK (timecodestamper);
return;
}
timecodestamper->ltcpad = NULL;
if (timecodestamper->ltc_internal_tc != NULL) {
gst_video_time_code_free (timecodestamper->ltc_internal_tc);
timecodestamper->ltc_internal_tc = NULL;
}
if (timecodestamper->ltc_current_tc != NULL) {
gst_video_time_code_free (timecodestamper->ltc_current_tc);
timecodestamper->ltc_current_tc = NULL;
}
timecodestamper->ltc_current_tc_running_time = GST_CLOCK_TIME_NONE;
GST_OBJECT_UNLOCK (timecodestamper);
gst_pad_set_active (pad, FALSE);
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->ltc_flushing = TRUE;
timecodestamper->ltc_eos = TRUE;
g_cond_signal (&timecodestamper->ltc_cond_video);
g_cond_signal (&timecodestamper->ltc_cond_audio);
gst_audio_info_init (&timecodestamper->ainfo);
gst_segment_init (&timecodestamper->ltc_segment, GST_FORMAT_UNDEFINED);
timecodestamper->ltc_first_running_time = GST_CLOCK_TIME_NONE;
timecodestamper->ltc_current_running_time = GST_CLOCK_TIME_NONE;
if (timecodestamper->ltc_dec) {
ltc_decoder_free (timecodestamper->ltc_dec);
timecodestamper->ltc_dec = NULL;
}
if (timecodestamper->stream_align) {
gst_audio_stream_align_free (timecodestamper->stream_align);
timecodestamper->stream_align = NULL;
}
timecodestamper->ltc_total = 0;
g_mutex_unlock (&timecodestamper->mutex);
gst_element_remove_pad (element, pad);
#endif
}
#if HAVE_LTC
static GstFlowReturn
gst_timecodestamper_ltcpad_chain (GstPad * pad,
GstObject * parent, GstBuffer * buffer)
{
GstFlowReturn fr = GST_FLOW_OK;
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (parent);
GstMapInfo map;
GstClockTime timestamp, running_time, duration;
guint nsamples;
gboolean discont;
g_mutex_lock (&timecodestamper->mutex);
if (timecodestamper->ltc_flushing) {
g_mutex_unlock (&timecodestamper->mutex);
gst_buffer_unref (buffer);
return GST_FLOW_FLUSHING;
}
nsamples = gst_buffer_get_size (buffer) /
GST_AUDIO_INFO_BPF (&timecodestamper->ainfo);
if (!timecodestamper->stream_align) {
timecodestamper->stream_align =
gst_audio_stream_align_new (timecodestamper->ainfo.rate, GST_SECOND,
40 * GST_MSECOND);
}
discont =
gst_audio_stream_align_process (timecodestamper->stream_align,
GST_BUFFER_IS_DISCONT (buffer), GST_BUFFER_PTS (buffer), nsamples,
&timestamp, &duration, NULL);
if (discont) {
if (timecodestamper->ltc_dec)
ltc_decoder_queue_flush (timecodestamper->ltc_dec);
timecodestamper->ltc_total = 0;
}
if (!timecodestamper->ltc_dec) {
gint samples_per_frame = 1920;
GST_OBJECT_LOCK (timecodestamper);
/* This is only for initialization and needs to be somewhat close to the
* real value. It will be tracked automatically afterwards */
if (timecodestamper->vinfo.fps_n) {
samples_per_frame = timecodestamper->ainfo.rate *
timecodestamper->vinfo.fps_d / timecodestamper->vinfo.fps_n;
}
GST_OBJECT_UNLOCK (timecodestamper);
timecodestamper->ltc_dec =
ltc_decoder_create (samples_per_frame, DEFAULT_LTC_QUEUE);
timecodestamper->ltc_total = 0;
}
running_time = gst_segment_to_running_time (&timecodestamper->ltc_segment,
GST_FORMAT_TIME, timestamp);
timecodestamper->ltc_current_running_time = running_time + duration;
GST_DEBUG_OBJECT (timecodestamper,
"Handling LTC audio buffer at %" GST_TIME_FORMAT " - %" GST_TIME_FORMAT
" (offset %" G_GUINT64_FORMAT ")",
GST_TIME_ARGS (running_time),
GST_TIME_ARGS (timecodestamper->ltc_current_running_time),
(guint64) timecodestamper->ltc_total);
if (timecodestamper->ltc_total == 0) {
timecodestamper->ltc_first_running_time = running_time;
}
gst_buffer_map (buffer, &map, GST_MAP_READ);
ltc_decoder_write (timecodestamper->ltc_dec, map.data, map.size,
timecodestamper->ltc_total);
timecodestamper->ltc_total += map.size;
gst_buffer_unmap (buffer, &map);
g_cond_signal (&timecodestamper->ltc_cond_video);
/* Wait until the video caught up if we already queued up a lot of pending
* timecodes, or until video is EOS or the LTC pad is flushing. */
while (ltc_decoder_queue_length (timecodestamper->ltc_dec) >
DEFAULT_LTC_QUEUE / 2 && !timecodestamper->video_eos
&& !timecodestamper->ltc_flushing) {
g_cond_wait (&timecodestamper->ltc_cond_audio, &timecodestamper->mutex);
}
if (timecodestamper->ltc_flushing)
fr = GST_FLOW_FLUSHING;
else
fr = GST_FLOW_OK;
g_mutex_unlock (&timecodestamper->mutex);
gst_buffer_unref (buffer);
return fr;
}
static gboolean
gst_timecodestamper_ltcpad_event (GstPad * pad,
GstObject * parent, GstEvent * event)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (parent);
GstCaps *caps;
gboolean ret = TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
gst_event_parse_caps (event, &caps);
if (!gst_audio_info_from_caps (&timecodestamper->ainfo, caps)) {
gst_event_unref (event);
return FALSE;
}
if (timecodestamper->stream_align) {
gst_audio_stream_align_set_rate (timecodestamper->stream_align,
timecodestamper->ainfo.rate);
}
break;
case GST_EVENT_SEGMENT:
gst_event_copy_segment (event, &timecodestamper->ltc_segment);
break;
case GST_EVENT_FLUSH_START:
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->ltc_flushing = TRUE;
g_cond_signal (&timecodestamper->ltc_cond_audio);
g_mutex_unlock (&timecodestamper->mutex);
break;
case GST_EVENT_FLUSH_STOP:
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->ltc_flushing = FALSE;
timecodestamper->ltc_eos = FALSE;
gst_segment_init (&timecodestamper->ltc_segment, GST_FORMAT_UNDEFINED);
g_mutex_unlock (&timecodestamper->mutex);
break;
case GST_EVENT_EOS:
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->ltc_eos = TRUE;
g_cond_signal (&timecodestamper->ltc_cond_video);
g_mutex_unlock (&timecodestamper->mutex);
break;
default:
break;
}
gst_event_unref (event);
return ret;
}
static gboolean
gst_timecodestamper_ltcpad_query (GstPad * pad,
GstObject * parent, GstQuery * query)
{
GstCaps *caps, *filter, *tcaps;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CAPS:
gst_query_parse_caps (query, &filter);
tcaps = gst_pad_get_pad_template_caps (pad);
if (filter)
caps = gst_caps_intersect_full (tcaps, filter,
GST_CAPS_INTERSECT_FIRST);
else
caps = gst_caps_ref (tcaps);
gst_query_set_caps_result (query, caps);
gst_caps_unref (tcaps);
gst_caps_unref (caps);
return TRUE;
default:
return gst_pad_query_default (pad, parent, query);
}
}
static gboolean
gst_timecodestamper_ltcpad_activatemode (GstPad * pad,
GstObject * parent, GstPadMode mode, gboolean active)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (parent);
if (active) {
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->ltc_flushing = FALSE;
timecodestamper->ltc_eos = FALSE;
g_mutex_unlock (&timecodestamper->mutex);
} else {
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->ltc_flushing = TRUE;
timecodestamper->ltc_eos = TRUE;
g_cond_signal (&timecodestamper->ltc_cond_audio);
g_mutex_unlock (&timecodestamper->mutex);
}
return TRUE;
}
static gboolean
gst_timecodestamper_videopad_activatemode (GstPad * pad,
GstObject * parent, GstPadMode mode, gboolean active)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (parent);
if (active) {
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->video_flushing = FALSE;
timecodestamper->video_eos = FALSE;
g_mutex_unlock (&timecodestamper->mutex);
} else {
g_mutex_lock (&timecodestamper->mutex);
timecodestamper->video_flushing = TRUE;
g_cond_signal (&timecodestamper->ltc_cond_video);
g_mutex_unlock (&timecodestamper->mutex);
}
return timecodestamper->video_activatemode_default (pad, parent, mode,
active);
}
static GstIterator *
gst_timecodestamper_src_iterate_internal_link (GstPad * pad, GstObject * parent)
{
GstTimeCodeStamper *timecodestamper = GST_TIME_CODE_STAMPER (parent);
GValue value = G_VALUE_INIT;
GstIterator *it;
g_value_init (&value, GST_TYPE_PAD);
g_value_set_object (&value, GST_BASE_TRANSFORM_SINK_PAD (timecodestamper));
it = gst_iterator_new_single (GST_TYPE_PAD, &value);
g_value_unset (&value);
return it;
}
#endif
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