mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-05 16:06:43 +00:00
362a97836f
... and enhance debug logging. Keep internal timestamp offsets on drain, no reason to reset them Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3987>
734 lines
20 KiB
C
734 lines
20 KiB
C
/* GStreamer
|
|
* Copyright (C) 2022 Seungha Yang <seungha@centricular.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
/* TODO:
|
|
* Parse POC and correct PTS if it's is unknown
|
|
* Reverse playback support
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <gst/base/base.h>
|
|
#include "gstcodectimestamper.h"
|
|
#include <string.h>
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (gst_codec_timestamper_debug);
|
|
#define GST_CAT_DEFAULT gst_codec_timestamper_debug
|
|
|
|
typedef struct
|
|
{
|
|
GstBuffer *buffer;
|
|
GList *events;
|
|
|
|
GstClockTime pts;
|
|
} GstCodecTimestamperFrame;
|
|
|
|
struct _GstCodecTimestamperPrivate
|
|
{
|
|
GRecMutex lock;
|
|
|
|
GstSegment in_segment;
|
|
|
|
GList *current_frame_events;
|
|
GstQueueArray *queue;
|
|
GArray *timestamp_queue;
|
|
|
|
gint fps_n;
|
|
gint fps_d;
|
|
|
|
guint max_bframes;
|
|
guint max_dpb_frames;
|
|
guint max_reorder_frames;
|
|
gboolean interlaced;
|
|
guint window_size;
|
|
GstClockTime last_dts;
|
|
GstClockTime dts_offset;
|
|
GstClockTime time_adjustment;
|
|
GstClockTime last_pts;
|
|
|
|
GstClockTime latency;
|
|
};
|
|
|
|
static void gst_codec_timestamper_class_init (GstCodecTimestamperClass * klass);
|
|
static void gst_codec_timestamper_init (GstCodecTimestamper * self,
|
|
GstCodecTimestamperClass * klass);
|
|
static void gst_codec_timestamper_finalize (GObject * object);
|
|
|
|
static GstFlowReturn gst_codec_timestamper_chain (GstPad * pad,
|
|
GstObject * parent, GstBuffer * buffer);
|
|
static gboolean gst_codec_timestamper_sink_event (GstPad * pad,
|
|
GstObject * parent, GstEvent * event);
|
|
static gboolean gst_codec_timestamper_src_query (GstPad * pad,
|
|
GstObject * parent, GstQuery * query);
|
|
static GstStateChangeReturn
|
|
gst_codec_timestamper_change_state (GstElement * element,
|
|
GstStateChange transition);
|
|
static void
|
|
gst_codec_timestamper_clear_frame (GstCodecTimestamperFrame * frame);
|
|
static void gst_codec_timestamper_reset (GstCodecTimestamper * self);
|
|
static void gst_codec_timestamper_drain (GstCodecTimestamper * self);
|
|
|
|
static GTypeClass *parent_class = NULL;
|
|
static gint private_offset = 0;
|
|
|
|
/* we can't use G_DEFINE_ABSTRACT_TYPE because we need the klass in the _init
|
|
* method to get to the padtemplates */
|
|
GType
|
|
gst_codec_timestamper_get_type (void)
|
|
{
|
|
static gsize type = 0;
|
|
|
|
if (g_once_init_enter (&type)) {
|
|
GType _type;
|
|
static const GTypeInfo info = {
|
|
sizeof (GstCodecTimestamperClass),
|
|
NULL,
|
|
NULL,
|
|
(GClassInitFunc) gst_codec_timestamper_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstCodecTimestamper),
|
|
0,
|
|
(GInstanceInitFunc) gst_codec_timestamper_init,
|
|
};
|
|
|
|
_type = g_type_register_static (GST_TYPE_ELEMENT,
|
|
"GstCodecTimestamper", &info, G_TYPE_FLAG_ABSTRACT);
|
|
|
|
private_offset = g_type_add_instance_private (_type,
|
|
sizeof (GstCodecTimestamperPrivate));
|
|
|
|
g_once_init_leave (&type, _type);
|
|
}
|
|
return type;
|
|
}
|
|
|
|
static inline GstCodecTimestamperPrivate *
|
|
gst_codec_timestamper_get_instance_private (GstCodecTimestamper * self)
|
|
{
|
|
return (G_STRUCT_MEMBER_P (self, private_offset));
|
|
}
|
|
|
|
static void
|
|
gst_codec_timestamper_class_init (GstCodecTimestamperClass * klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
if (private_offset)
|
|
g_type_class_adjust_private_offset (klass, &private_offset);
|
|
|
|
object_class->finalize = gst_codec_timestamper_finalize;
|
|
|
|
element_class->change_state =
|
|
GST_DEBUG_FUNCPTR (gst_codec_timestamper_change_state);
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_codec_timestamper_debug, "codectimestamper", 0,
|
|
"codectimestamper");
|
|
|
|
/**
|
|
* GstCodecTimestamper:
|
|
*
|
|
* Since: 1.22
|
|
*/
|
|
gst_type_mark_as_plugin_api (GST_TYPE_CODEC_TIMESTAMPER, 0);
|
|
}
|
|
|
|
static void
|
|
gst_codec_timestamper_init (GstCodecTimestamper * self,
|
|
GstCodecTimestamperClass * klass)
|
|
{
|
|
GstCodecTimestamperPrivate *priv;
|
|
GstPadTemplate *template;
|
|
|
|
self->priv = priv = gst_codec_timestamper_get_instance_private (self);
|
|
|
|
template = gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass),
|
|
"sink");
|
|
self->sinkpad = gst_pad_new_from_template (template, "sink");
|
|
gst_pad_set_chain_function (self->sinkpad,
|
|
GST_DEBUG_FUNCPTR (gst_codec_timestamper_chain));
|
|
gst_pad_set_event_function (self->sinkpad,
|
|
GST_DEBUG_FUNCPTR (gst_codec_timestamper_sink_event));
|
|
GST_PAD_SET_PROXY_SCHEDULING (self->sinkpad);
|
|
gst_element_add_pad (GST_ELEMENT (self), self->sinkpad);
|
|
|
|
template = gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass),
|
|
"src");
|
|
self->srcpad = gst_pad_new_from_template (template, "src");
|
|
gst_pad_set_query_function (self->srcpad,
|
|
GST_DEBUG_FUNCPTR (gst_codec_timestamper_src_query));
|
|
GST_PAD_SET_PROXY_SCHEDULING (self->srcpad);
|
|
|
|
gst_element_add_pad (GST_ELEMENT (self), self->srcpad);
|
|
|
|
priv->queue =
|
|
gst_queue_array_new_for_struct (sizeof (GstCodecTimestamperFrame), 16);
|
|
gst_queue_array_set_clear_func (priv->queue,
|
|
(GDestroyNotify) gst_codec_timestamper_clear_frame);
|
|
priv->timestamp_queue =
|
|
g_array_sized_new (FALSE, FALSE, sizeof (GstClockTime), 16);
|
|
|
|
g_rec_mutex_init (&priv->lock);
|
|
gst_segment_init (&priv->in_segment, GST_FORMAT_TIME);
|
|
}
|
|
|
|
static void
|
|
gst_codec_timestamper_finalize (GObject * object)
|
|
{
|
|
GstCodecTimestamper *self = GST_CODEC_TIMESTAMPER (object);
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
|
|
gst_queue_array_free (priv->queue);
|
|
g_array_unref (priv->timestamp_queue);
|
|
g_rec_mutex_clear (&priv->lock);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static gboolean
|
|
gst_codec_timestamper_set_caps (GstCodecTimestamper * self, GstCaps * caps)
|
|
{
|
|
GstCodecTimestamperClass *klass = GST_CODEC_TIMESTAMPER_GET_CLASS (self);
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
GstStructure *s = gst_caps_get_structure (caps, 0);
|
|
|
|
priv->fps_n = 0;
|
|
priv->fps_d = 1;
|
|
|
|
gst_structure_get_fraction (s, "framerate", &priv->fps_n, &priv->fps_d);
|
|
|
|
if (priv->fps_n <= 0 || priv->fps_d <= 0) {
|
|
GST_WARNING_OBJECT (self, "Unknown frame rate, assume 25/1");
|
|
priv->fps_n = 25;
|
|
priv->fps_d = 1;
|
|
}
|
|
|
|
if (!klass->set_caps (self, caps))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_codec_timestamper_push_event (GstCodecTimestamper * self, GstEvent * event)
|
|
{
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
|
|
if (GST_EVENT_TYPE (event) == GST_EVENT_SEGMENT) {
|
|
GstSegment segment;
|
|
guint32 seqnum;
|
|
|
|
gst_event_copy_segment (event, &segment);
|
|
|
|
if (segment.format != GST_FORMAT_TIME) {
|
|
GST_ELEMENT_ERROR (self, CORE, EVENT, (NULL),
|
|
("Non-time format segment"));
|
|
gst_event_unref (event);
|
|
return FALSE;
|
|
}
|
|
|
|
if (priv->time_adjustment != GST_CLOCK_TIME_NONE) {
|
|
segment.start += priv->time_adjustment;
|
|
if (GST_CLOCK_TIME_IS_VALID (segment.position))
|
|
segment.position += priv->time_adjustment;
|
|
if (GST_CLOCK_TIME_IS_VALID (segment.stop))
|
|
segment.stop += priv->time_adjustment;
|
|
}
|
|
|
|
seqnum = gst_event_get_seqnum (event);
|
|
|
|
gst_event_unref (event);
|
|
event = gst_event_new_segment (&segment);
|
|
gst_event_set_seqnum (event, seqnum);
|
|
}
|
|
|
|
return gst_pad_push_event (self->srcpad, event);
|
|
}
|
|
|
|
static void
|
|
gst_codec_timestamper_flush_events (GstCodecTimestamper * self, GList ** events)
|
|
{
|
|
GList *iter;
|
|
|
|
for (iter = *events; iter; iter = g_list_next (iter)) {
|
|
GstEvent *ev = GST_EVENT (iter->data);
|
|
|
|
if (GST_EVENT_IS_STICKY (ev) && GST_EVENT_TYPE (ev) != GST_EVENT_EOS &&
|
|
GST_EVENT_TYPE (ev) != GST_EVENT_SEGMENT) {
|
|
gst_pad_store_sticky_event (self->srcpad, ev);
|
|
}
|
|
|
|
gst_event_unref (ev);
|
|
}
|
|
|
|
g_clear_pointer (events, g_list_free);
|
|
}
|
|
|
|
static void
|
|
gst_codec_timestamper_flush (GstCodecTimestamper * self)
|
|
{
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
|
|
while (gst_queue_array_get_length (priv->queue) > 0) {
|
|
GstCodecTimestamperFrame *frame = (GstCodecTimestamperFrame *)
|
|
gst_queue_array_pop_head_struct (priv->queue);
|
|
|
|
gst_codec_timestamper_flush_events (self, &frame->events);
|
|
gst_codec_timestamper_clear_frame (frame);
|
|
}
|
|
|
|
gst_codec_timestamper_flush_events (self, &priv->current_frame_events);
|
|
|
|
priv->time_adjustment = GST_CLOCK_TIME_NONE;
|
|
priv->last_dts = GST_CLOCK_TIME_NONE;
|
|
priv->last_pts = GST_CLOCK_TIME_NONE;
|
|
g_rec_mutex_lock (&priv->lock);
|
|
priv->latency = GST_CLOCK_TIME_NONE;
|
|
g_rec_mutex_unlock (&priv->lock);
|
|
}
|
|
|
|
static gboolean
|
|
gst_codec_timestamper_sink_event (GstPad * pad, GstObject * parent,
|
|
GstEvent * event)
|
|
{
|
|
GstCodecTimestamper *self = GST_CODEC_TIMESTAMPER (parent);
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_CAPS:{
|
|
GstCaps *caps;
|
|
|
|
gst_event_parse_caps (event, &caps);
|
|
gst_codec_timestamper_set_caps (self, caps);
|
|
break;
|
|
}
|
|
case GST_EVENT_SEGMENT:{
|
|
GstSegment segment;
|
|
|
|
gst_event_copy_segment (event, &segment);
|
|
if (segment.format != GST_FORMAT_TIME) {
|
|
GST_WARNING_OBJECT (self, "Not a time format segment");
|
|
gst_event_unref (event);
|
|
return FALSE;
|
|
}
|
|
|
|
if (segment.rate < 0) {
|
|
GST_WARNING_OBJECT (self, "Negative rate is not supported");
|
|
gst_event_unref (event);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Drain on segment update */
|
|
if (!gst_segment_is_equal (&priv->in_segment, &segment))
|
|
gst_codec_timestamper_drain (self);
|
|
|
|
priv->in_segment = segment;
|
|
break;
|
|
}
|
|
case GST_EVENT_EOS:
|
|
gst_codec_timestamper_drain (self);
|
|
if (priv->current_frame_events) {
|
|
GList *iter;
|
|
|
|
for (iter = priv->current_frame_events; iter; iter = g_list_next (iter))
|
|
gst_codec_timestamper_push_event (self, GST_EVENT (iter->data));
|
|
|
|
g_clear_pointer (&priv->current_frame_events, g_list_free);
|
|
}
|
|
break;
|
|
case GST_EVENT_FLUSH_STOP:
|
|
gst_codec_timestamper_flush (self);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!GST_EVENT_IS_SERIALIZED (event) ||
|
|
GST_EVENT_TYPE (event) == GST_EVENT_EOS ||
|
|
GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP) {
|
|
return gst_pad_event_default (pad, parent, event);
|
|
}
|
|
|
|
/* Store event to serialize queued frames */
|
|
priv->current_frame_events = g_list_append (priv->current_frame_events,
|
|
event);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_codec_timestamper_frame_init (GstCodecTimestamperFrame * frame)
|
|
{
|
|
memset (frame, 0, sizeof (GstCodecTimestamperFrame));
|
|
|
|
frame->pts = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
static void
|
|
gst_codec_timestamper_clear_frame (GstCodecTimestamperFrame * frame)
|
|
{
|
|
if (!frame)
|
|
return;
|
|
|
|
gst_clear_buffer (&frame->buffer);
|
|
if (frame->events) {
|
|
g_list_free_full (frame->events, (GDestroyNotify) gst_event_unref);
|
|
frame->events = NULL;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_codec_timestamper_output_frame (GstCodecTimestamper * self,
|
|
GstCodecTimestamperFrame * frame)
|
|
{
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
GList *iter;
|
|
GstFlowReturn ret;
|
|
GstClockTime dts = GST_CLOCK_TIME_NONE;
|
|
|
|
for (iter = frame->events; iter; iter = g_list_next (iter)) {
|
|
GstEvent *event = GST_EVENT (iter->data);
|
|
|
|
gst_codec_timestamper_push_event (self, event);
|
|
}
|
|
|
|
g_clear_pointer (&frame->events, g_list_free);
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (frame->pts)) {
|
|
g_assert (priv->timestamp_queue->len > 0);
|
|
dts = g_array_index (priv->timestamp_queue, GstClockTime, 0);
|
|
g_array_remove_index (priv->timestamp_queue, 0);
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (priv->dts_offset))
|
|
dts -= priv->dts_offset;
|
|
}
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (dts)) {
|
|
if (!GST_CLOCK_TIME_IS_VALID (priv->last_dts))
|
|
priv->last_dts = dts;
|
|
|
|
/* make sure DTS <= PTS */
|
|
if (GST_CLOCK_TIME_IS_VALID (frame->pts)) {
|
|
if (dts > frame->pts) {
|
|
if (frame->pts >= priv->last_dts)
|
|
dts = frame->pts;
|
|
else
|
|
dts = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (dts))
|
|
priv->last_dts = dts;
|
|
}
|
|
}
|
|
|
|
frame->buffer = gst_buffer_make_writable (frame->buffer);
|
|
GST_BUFFER_PTS (frame->buffer) = frame->pts;
|
|
GST_BUFFER_DTS (frame->buffer) = dts;
|
|
|
|
GST_LOG_OBJECT (self, "Output %" GST_PTR_FORMAT, frame->buffer);
|
|
|
|
ret = gst_pad_push (self->srcpad, g_steal_pointer (&frame->buffer));
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_codec_timestamper_process_output_frame (GstCodecTimestamper * self)
|
|
{
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
guint len;
|
|
GstCodecTimestamperFrame *frame;
|
|
|
|
len = gst_queue_array_get_length (priv->queue);
|
|
if (len < priv->window_size) {
|
|
GST_TRACE_OBJECT (self, "Need more data, queued %d/%d", len,
|
|
priv->window_size);
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
frame = (GstCodecTimestamperFrame *)
|
|
gst_queue_array_pop_head_struct (priv->queue);
|
|
|
|
return gst_codec_timestamper_output_frame (self, frame);
|
|
}
|
|
|
|
static void
|
|
gst_codec_timestamper_drain (GstCodecTimestamper * self)
|
|
{
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
|
|
GST_DEBUG_OBJECT (self, "Draining");
|
|
|
|
while (gst_queue_array_get_length (priv->queue) > 0) {
|
|
GstCodecTimestamperFrame *frame = (GstCodecTimestamperFrame *)
|
|
gst_queue_array_pop_head_struct (priv->queue);
|
|
gst_codec_timestamper_output_frame (self, frame);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (self, "Drained");
|
|
}
|
|
|
|
static gint
|
|
pts_compare_func (const GstClockTime * a, const GstClockTime * b)
|
|
{
|
|
return (*a) - (*b);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_codec_timestamper_chain (GstPad * pad, GstObject * parent,
|
|
GstBuffer * buffer)
|
|
{
|
|
GstCodecTimestamper *self = GST_CODEC_TIMESTAMPER (parent);
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
GstCodecTimestamperClass *klass = GST_CODEC_TIMESTAMPER_GET_CLASS (self);
|
|
GstClockTime pts, dts;
|
|
/* The same hack as x264 for negative DTS */
|
|
static const GstClockTime min_pts = GST_SECOND * 60 * 60 * 1000;
|
|
GstCodecTimestamperFrame frame;
|
|
GstFlowReturn ret;
|
|
|
|
gst_codec_timestamper_frame_init (&frame);
|
|
|
|
GST_LOG_OBJECT (self, "Handle %" GST_PTR_FORMAT, buffer);
|
|
|
|
pts = GST_BUFFER_PTS (buffer);
|
|
dts = GST_BUFFER_DTS (buffer);
|
|
|
|
if (!GST_CLOCK_TIME_IS_VALID (priv->time_adjustment)) {
|
|
GstClockTime start_time = GST_CLOCK_TIME_NONE;
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (pts)) {
|
|
GST_DEBUG_OBJECT (self, "Got valid PTS: %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (pts));
|
|
start_time = MAX (pts, priv->in_segment.start);
|
|
} else if (GST_CLOCK_TIME_IS_VALID (dts)) {
|
|
GST_DEBUG_OBJECT (self, "Got valid DTS: %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (dts));
|
|
start_time = MAX (dts, priv->in_segment.start);
|
|
} else {
|
|
GST_WARNING_OBJECT (self, "Both PTS and DTS are invalid");
|
|
start_time = priv->in_segment.start;
|
|
}
|
|
|
|
if (start_time < min_pts) {
|
|
priv->time_adjustment = min_pts - start_time;
|
|
GST_DEBUG_OBJECT (self, "Updating time-adjustment %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (priv->time_adjustment));
|
|
}
|
|
}
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (priv->time_adjustment)) {
|
|
if (GST_CLOCK_TIME_IS_VALID (pts))
|
|
pts += priv->time_adjustment;
|
|
if (GST_CLOCK_TIME_IS_VALID (dts))
|
|
dts += priv->time_adjustment;
|
|
}
|
|
|
|
ret = klass->handle_buffer (self, buffer);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_INFO_OBJECT (self, "Handle buffer returned %s",
|
|
gst_flow_get_name (ret));
|
|
|
|
gst_buffer_unref (buffer);
|
|
return ret;
|
|
}
|
|
|
|
/* workaround h264/5parse producing pts=NONE buffers when provided with
|
|
* the same timestamps on sequential buffers */
|
|
if (GST_CLOCK_TIME_IS_VALID (pts)) {
|
|
priv->last_pts = pts;
|
|
} else if (GST_CLOCK_TIME_IS_VALID (priv->last_pts)) {
|
|
pts = priv->last_pts;
|
|
}
|
|
|
|
frame.pts = pts;
|
|
frame.buffer = buffer;
|
|
frame.events = priv->current_frame_events;
|
|
priv->current_frame_events = NULL;
|
|
|
|
GST_LOG_OBJECT (self, "Enqueue frame, buffer pts %" GST_TIME_FORMAT
|
|
", adjusted pts %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (GST_BUFFER_PTS (buffer)), GST_TIME_ARGS (pts));
|
|
|
|
gst_queue_array_push_tail_struct (priv->queue, &frame);
|
|
if (GST_CLOCK_TIME_IS_VALID (frame.pts)) {
|
|
g_array_append_val (priv->timestamp_queue, frame.pts);
|
|
g_array_sort (priv->timestamp_queue, (GCompareFunc) pts_compare_func);
|
|
}
|
|
|
|
return gst_codec_timestamper_process_output_frame (self);
|
|
}
|
|
|
|
static gboolean
|
|
gst_codec_timestamper_src_query (GstPad * pad, GstObject * parent,
|
|
GstQuery * query)
|
|
{
|
|
GstCodecTimestamper *self = GST_CODEC_TIMESTAMPER (parent);
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_LATENCY:{
|
|
gboolean ret;
|
|
|
|
ret = gst_pad_peer_query (self->sinkpad, query);
|
|
if (ret) {
|
|
GstClockTime min, max;
|
|
gboolean live;
|
|
|
|
gst_query_parse_latency (query, &live, &min, &max);
|
|
|
|
g_rec_mutex_lock (&priv->lock);
|
|
if (GST_CLOCK_TIME_IS_VALID (priv->latency))
|
|
min += priv->latency;
|
|
g_rec_mutex_unlock (&priv->lock);
|
|
|
|
gst_query_set_latency (query, live, min, max);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return gst_pad_query_default (pad, parent, query);
|
|
}
|
|
|
|
static void
|
|
gst_codec_timestamper_reset (GstCodecTimestamper * self)
|
|
{
|
|
GstCodecTimestamperPrivate *priv = self->priv;
|
|
|
|
gst_queue_array_clear (priv->queue);
|
|
g_array_set_size (priv->timestamp_queue, 0);
|
|
priv->fps_n = 0;
|
|
priv->fps_d = 1;
|
|
priv->dts_offset = 0;
|
|
priv->time_adjustment = GST_CLOCK_TIME_NONE;
|
|
priv->latency = GST_CLOCK_TIME_NONE;
|
|
priv->window_size = 0;
|
|
priv->last_dts = GST_CLOCK_TIME_NONE;
|
|
priv->last_pts = GST_CLOCK_TIME_NONE;
|
|
|
|
if (priv->current_frame_events) {
|
|
g_list_free_full (priv->current_frame_events,
|
|
(GDestroyNotify) gst_event_unref);
|
|
priv->current_frame_events = NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_codec_timestamper_start (GstCodecTimestamper * self)
|
|
{
|
|
GstCodecTimestamperClass *klass = GST_CODEC_TIMESTAMPER_GET_CLASS (self);
|
|
|
|
gst_codec_timestamper_reset (self);
|
|
|
|
if (klass->start)
|
|
return klass->start (self);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_codec_timestamper_stop (GstCodecTimestamper * self)
|
|
{
|
|
GstCodecTimestamperClass *klass = GST_CODEC_TIMESTAMPER_GET_CLASS (self);
|
|
|
|
gst_codec_timestamper_reset (self);
|
|
|
|
if (klass->stop)
|
|
return klass->stop (self);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_codec_timestamper_change_state (GstElement * element,
|
|
GstStateChange transition)
|
|
{
|
|
GstCodecTimestamper *self = GST_CODEC_TIMESTAMPER (element);
|
|
GstStateChangeReturn ret;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
gst_codec_timestamper_start (self);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
gst_codec_timestamper_stop (self);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
gst_codec_timestamper_set_window_size (GstCodecTimestamper * timestamper,
|
|
guint window_size)
|
|
{
|
|
GstCodecTimestamperPrivate *priv = timestamper->priv;
|
|
gboolean updated = FALSE;
|
|
GstClockTime latency = 0;
|
|
|
|
g_rec_mutex_lock (&priv->lock);
|
|
priv->dts_offset = 0;
|
|
priv->window_size = 0;
|
|
|
|
if (window_size) {
|
|
priv->dts_offset = gst_util_uint64_scale_int (window_size * GST_SECOND,
|
|
priv->fps_d, priv->fps_n);
|
|
|
|
/* Add margin to be robust against PTS errors and in order for boundary
|
|
* frames' PTS can be referenced */
|
|
window_size += 2;
|
|
latency = gst_util_uint64_scale_int (window_size * GST_SECOND,
|
|
priv->fps_d, priv->fps_n);
|
|
|
|
priv->window_size = window_size;
|
|
}
|
|
|
|
if (priv->latency != latency) {
|
|
updated = TRUE;
|
|
priv->latency = latency;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (timestamper,
|
|
"New window size %d, latency %" GST_TIME_FORMAT ", framerate %d/%d",
|
|
priv->window_size, GST_TIME_ARGS (latency), priv->fps_n, priv->fps_d);
|
|
g_rec_mutex_unlock (&priv->lock);
|
|
|
|
if (updated) {
|
|
gst_codec_timestamper_drain (timestamper);
|
|
gst_element_post_message (GST_ELEMENT_CAST (timestamper),
|
|
gst_message_new_latency (GST_OBJECT_CAST (timestamper)));
|
|
}
|
|
}
|