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Add H.264/H.265 timestamp correction element

Browse source 
Adding {h264,h265}timestamper element to correct timestamp of
encoded frames. This initial version supports only DTS
correction based on given PTS and SPS data.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2580>
This commit is contained in:
Seungha Yang 2022-05-19 00:44:40 +09:00 committed by GStreamer Marge Bot
parent 79020fa355
commit 6a8a20ff92
11 changed files with 1717 additions and 1 deletions
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77
subprojects/gst-plugins-bad/docs/plugins/gst_plugins_cache.json
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@ -5388,6 +5388,83 @@
"tracers": {}, "tracers": {},
"url": "Unknown package origin" "url": "Unknown package origin"
}, },
"codectimestamper": {
"description": "codectimestamper",
"elements": {
"h264timestamper": {
"author": "Seungha Yang <seungha@centricular.com>",
"description": "Timestamp H.264 streams",
"hierarchy": [
"GstH264Timestamper",
"GstCodecTimestamper",
"GstElement",
"GstObject",
"GInitiallyUnowned",
"GObject"
],
"klass": "Codec/Video",
"long-name": "H.264 timestamper",
"pad-templates": {
"sink": {
"caps": "video/x-h264:\n alignment: au\n",
"direction": "sink",
"presence": "always"
},
"src": {
"caps": "video/x-h264:\n alignment: au\n",
"direction": "src",
"presence": "always"
}
},
"rank": "none"
},
"h265timestamper": {
"author": "Seungha Yang <seungha@centricular.com>",
"description": "Timestamp H.265 streams",
"hierarchy": [
"GstH265Timestamper",
"GstCodecTimestamper",
"GstElement",
"GstObject",
"GInitiallyUnowned",
"GObject"
],
"klass": "Codec/Video",
"long-name": "H.265 timestamper",
"pad-templates": {
"sink": {
"caps": "video/x-h265:\n alignment: au\n",
"direction": "sink",
"presence": "always"
},
"src": {
"caps": "video/x-h265:\n alignment: au\n",
"direction": "src",
"presence": "always"
}
},
"rank": "none"
}
},
"filename": "gstcodectimestamper",
"license": "LGPL",
"other-types": {
"GstCodecTimestamper": {
"hierarchy": [
"GstCodecTimestamper",
"GstElement",
"GstObject",
"GInitiallyUnowned",
"GObject"
],
"kind": "object"
}
},
"package": "GStreamer Bad Plug-ins",
"source": "gst-plugins-bad",
"tracers": {},
"url": "Unknown package origin"
},
"coloreffects": { "coloreffects": {
"description": "Color Look-up Table filters", "description": "Color Look-up Table filters",
"elements": { "elements": {

708
subprojects/gst-plugins-bad/gst/codectimestamper/gstcodectimestamper.c Normal file
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@ -0,0 +1,708 @@
/* 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 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);
}
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;
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 (memcmp (&self->in_segment, &segment, sizeof (GstSegment)))
gst_codec_timestamper_drain (self);
self->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_TRACE_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;
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);
}
priv->time_adjustment = GST_CLOCK_TIME_NONE;
priv->last_dts = GST_CLOCK_TIME_NONE;
}
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_TRACE_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))
start_time = MAX (pts, self->in_segment.start);
else if (GST_CLOCK_TIME_IS_VALID (dts))
start_time = MAX (dts, self->in_segment.start);
else
start_time = priv->in_segment.start;
if (start_time < min_pts)
priv->time_adjustment = min_pts - start_time;
}
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;
}
frame.pts = pts;
frame.buffer = buffer;
frame.events = priv->current_frame_events;
priv->current_frame_events = NULL;
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;
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)));
}
}

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/* 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.
*/
#pragma once
#include <gst/gst.h>
G_BEGIN_DECLS
#define GST_TYPE_CODEC_TIMESTAMPER (gst_codec_timestamper_get_type())
#define GST_CODEC_TIMESTAMPER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CODEC_TIMESTAMPER,GstCodecTimestamper))
#define GST_CODEC_TIMESTAMPER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CODEC_TIMESTAMPER,GstCodecTimestamperClass))
#define GST_CODEC_TIMESTAMPER_GET_CLASS(obj) (GST_CODEC_TIMESTAMPER_CLASS(G_OBJECT_GET_CLASS(obj)))
#define GST_CODEC_TIMESTAMPER_CAST(obj) ((GstCodecTimestamper*)(obj))
typedef struct _GstCodecTimestamper GstCodecTimestamper;
typedef struct _GstCodecTimestamperClass GstCodecTimestamperClass;
typedef struct _GstCodecTimestamperPrivate GstCodecTimestamperPrivate;
struct _GstCodecTimestamper
{
GstElement parent;
GstPad *sinkpad;
GstPad *srcpad;
GstSegment in_segment;
GstCodecTimestamperPrivate *priv;
};
struct _GstCodecTimestamperClass
{
GstElementClass parent_class;
gboolean (*start) (GstCodecTimestamper * timestamper);
gboolean (*stop) (GstCodecTimestamper * timestamper);
gboolean (*set_caps) (GstCodecTimestamper * timestamper,
GstCaps * caps);
GstFlowReturn (*handle_buffer) (GstCodecTimestamper * timestamper,
GstBuffer * buffer);
};
G_DEFINE_AUTOPTR_CLEANUP_FUNC (GstCodecTimestamper, gst_object_unref);
GType gst_codec_timestamper_get_type (void);
void gst_codec_timestamper_set_window_size (GstCodecTimestamper * timestamper,
guint window_size);
G_END_DECLS

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/* 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.
*/
/**
* SECTION:element-h264timestamper
* @title: h264timestamper
*
* A timestamp correction element for H.264 stream.
*
* ## Example launch line
* ```
* gst-launch-1.0 filesrc location=video.mkv ! matroskademux ! h264parse ! h264timestamper ! mp4mux ! filesink location=output.mp4
* ```
*
* Since: 1.22
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/base/base.h>
#include <gst/codecparsers/gsth264parser.h>
#include "gsth264timestamper.h"
GST_DEBUG_CATEGORY_STATIC (gst_h264_timestamper_debug);
#define GST_CAT_DEFAULT gst_h264_timestamper_debug
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h264, alignment=(string) au"));
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h264, alignment=(string) au"));
struct _GstH264Timestamper
{
GstCodecTimestamper parent;
GstH264NalParser *parser;
gboolean packetized;
guint nal_length_size;
};
static gboolean gst_h264_timestamper_start (GstCodecTimestamper * timestamper);
static gboolean gst_h264_timestamper_stop (GstCodecTimestamper * timestamper);
static gboolean gst_h264_timestamper_set_caps (GstCodecTimestamper *
timestamper, GstCaps * caps);
static GstFlowReturn gst_h264_timestamper_handle_buffer (GstCodecTimestamper *
timestamper, GstBuffer * buffer);
static void gst_h264_timestamper_process_nal (GstH264Timestamper * self,
GstH264NalUnit * nalu);
G_DEFINE_TYPE (GstH264Timestamper,
gst_h264_timestamper, GST_TYPE_CODEC_TIMESTAMPER);
GST_ELEMENT_REGISTER_DEFINE (h264timestamper, "h264timestamper",
GST_RANK_NONE, GST_TYPE_H264_TIMESTAMPER);
static void
gst_h264_timestamper_class_init (GstH264TimestamperClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCodecTimestamperClass *timestamper_class =
GST_CODEC_TIMESTAMPER_CLASS (klass);
gst_element_class_add_static_pad_template (element_class, &sinktemplate);
gst_element_class_add_static_pad_template (element_class, &srctemplate);
gst_element_class_set_static_metadata (element_class, "H.264 timestamper",
"Codec/Video", "Timestamp H.264 streams",
"Seungha Yang <seungha@centricular.com>");
timestamper_class->start = GST_DEBUG_FUNCPTR (gst_h264_timestamper_start);
timestamper_class->stop = GST_DEBUG_FUNCPTR (gst_h264_timestamper_stop);
timestamper_class->set_caps =
GST_DEBUG_FUNCPTR (gst_h264_timestamper_set_caps);
timestamper_class->handle_buffer =
GST_DEBUG_FUNCPTR (gst_h264_timestamper_handle_buffer);
GST_DEBUG_CATEGORY_INIT (gst_h264_timestamper_debug, "h264timestamper", 0,
"h264timestamper");
}
static void
gst_h264_timestamper_init (GstH264Timestamper * self)
{
}
static gboolean
gst_h264_timestamper_set_caps (GstCodecTimestamper * timestamper,
GstCaps * caps)
{
GstH264Timestamper *self = GST_H264_TIMESTAMPER (timestamper);
GstStructure *s = gst_caps_get_structure (caps, 0);
const gchar *str;
gboolean found_format = FALSE;
const GValue *codec_data_val;
self->packetized = FALSE;
self->nal_length_size = 4;
str = gst_structure_get_string (s, "stream-format");
if (g_strcmp0 (str, "avc") == 0 || g_strcmp0 (str, "avc3") == 0) {
self->packetized = TRUE;
found_format = TRUE;
} else if (g_strcmp0 (str, "byte-stream") == 0) {
found_format = TRUE;
}
codec_data_val = gst_structure_get_value (s, "codec_data");
if (codec_data_val && GST_VALUE_HOLDS_BUFFER (codec_data_val)) {
GstBuffer *codec_data = gst_value_get_buffer (codec_data_val);
GstMapInfo map;
GstH264NalUnit *nalu;
GstH264ParserResult ret;
GstH264DecoderConfigRecord *config = NULL;
guint i;
if (!gst_buffer_map (codec_data, &map, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Unable to map codec-data buffer");
return FALSE;
}
ret = gst_h264_parser_parse_decoder_config_record (self->parser,
map.data, map.size, &config);
if (ret != GST_H264_PARSER_OK) {
GST_WARNING_OBJECT (self, "Failed to parse codec-data");
goto unmap;
}
self->nal_length_size = config->length_size_minus_one + 1;
for (i = 0; i < config->sps->len; i++) {
nalu = &g_array_index (config->sps, GstH264NalUnit, i);
gst_h264_timestamper_process_nal (self, nalu);
}
for (i = 0; i < config->pps->len; i++) {
nalu = &g_array_index (config->pps, GstH264NalUnit, i);
gst_h264_timestamper_process_nal (self, nalu);
}
/* codec_data would mean packetized format */
if (!found_format)
self->packetized = TRUE;
unmap:
gst_buffer_unmap (codec_data, &map);
g_clear_pointer (&config, gst_h264_decoder_config_record_free);
}
return TRUE;
}
typedef enum
{
GST_H264_LEVEL_L1 = 10,
GST_H264_LEVEL_L1B = 9,
GST_H264_LEVEL_L1_1 = 11,
GST_H264_LEVEL_L1_2 = 12,
GST_H264_LEVEL_L1_3 = 13,
GST_H264_LEVEL_L2_0 = 20,
GST_H264_LEVEL_L2_1 = 21,
GST_H264_LEVEL_L2_2 = 22,
GST_H264_LEVEL_L3 = 30,
GST_H264_LEVEL_L3_1 = 31,
GST_H264_LEVEL_L3_2 = 32,
GST_H264_LEVEL_L4 = 40,
GST_H264_LEVEL_L4_1 = 41,
GST_H264_LEVEL_L4_2 = 42,
GST_H264_LEVEL_L5 = 50,
GST_H264_LEVEL_L5_1 = 51,
GST_H264_LEVEL_L5_2 = 52,
GST_H264_LEVEL_L6 = 60,
GST_H264_LEVEL_L6_1 = 61,
GST_H264_LEVEL_L6_2 = 62,
} GstH264DecoderLevel;
typedef struct
{
GstH264DecoderLevel level;
guint32 max_mbps;
guint32 max_fs;
guint32 max_dpb_mbs;
guint32 max_main_br;
} LevelLimits;
static const LevelLimits level_limits_map[] = {
{GST_H264_LEVEL_L1, 1485, 99, 396, 64},
{GST_H264_LEVEL_L1B, 1485, 99, 396, 128},
{GST_H264_LEVEL_L1_1, 3000, 396, 900, 192},
{GST_H264_LEVEL_L1_2, 6000, 396, 2376, 384},
{GST_H264_LEVEL_L1_3, 11800, 396, 2376, 768},
{GST_H264_LEVEL_L2_0, 11880, 396, 2376, 2000},
{GST_H264_LEVEL_L2_1, 19800, 792, 4752, 4000},
{GST_H264_LEVEL_L2_2, 20250, 1620, 8100, 4000},
{GST_H264_LEVEL_L3, 40500, 1620, 8100, 10000},
{GST_H264_LEVEL_L3_1, 108000, 3600, 18000, 14000},
{GST_H264_LEVEL_L3_2, 216000, 5120, 20480, 20000},
{GST_H264_LEVEL_L4, 245760, 8192, 32768, 20000},
{GST_H264_LEVEL_L4_1, 245760, 8192, 32768, 50000},
{GST_H264_LEVEL_L4_2, 522240, 8704, 34816, 50000},
{GST_H264_LEVEL_L5, 589824, 22080, 110400, 135000},
{GST_H264_LEVEL_L5_1, 983040, 36864, 184320, 240000},
{GST_H264_LEVEL_L5_2, 2073600, 36864, 184320, 240000},
{GST_H264_LEVEL_L6, 4177920, 139264, 696320, 240000},
{GST_H264_LEVEL_L6_1, 8355840, 139264, 696320, 480000},
{GST_H264_LEVEL_L6_2, 16711680, 139264, 696320, 800000}
};
static guint
h264_level_to_max_dpb_mbs (GstH264DecoderLevel level)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (level_limits_map); i++) {
if (level == level_limits_map[i].level)
return level_limits_map[i].max_dpb_mbs;
}
return 0;
}
static void
gst_h264_timestamper_process_sps (GstH264Timestamper * self, GstH264SPS * sps)
{
guint8 level;
guint max_dpb_mbs;
guint width_mb, height_mb;
guint max_dpb_frames = 0;
guint max_reorder_frames = 0;
/* Spec A.3.1 and A.3.2
* For Baseline, Constrained Baseline and Main profile, the indicated level is
* Level 1b if level_idc is equal to 11 and constraint_set3_flag is equal to 1
*/
level = sps->level_idc;
if (level == 11 && (sps->profile_idc == 66 || sps->profile_idc == 77) &&
sps->constraint_set3_flag) {
/* Level 1b */
level = 9;
}
max_dpb_mbs = h264_level_to_max_dpb_mbs ((GstH264DecoderLevel) level);
if (sps->vui_parameters_present_flag
&& sps->vui_parameters.bitstream_restriction_flag) {
max_dpb_frames = MAX (1, sps->vui_parameters.max_dec_frame_buffering);
} else if (max_dpb_mbs != 0) {
width_mb = sps->width / 16;
height_mb = sps->height / 16;
max_dpb_frames = MIN (max_dpb_mbs / (width_mb * height_mb), 16);
} else {
GST_WARNING_OBJECT (self, "Unable to get MAX DPB MBs");
max_dpb_frames = 16;
}
GST_DEBUG_OBJECT (self, "Max DPB size %d", max_dpb_frames);
max_reorder_frames = max_dpb_frames;
if (sps->vui_parameters_present_flag
&& sps->vui_parameters.bitstream_restriction_flag) {
max_reorder_frames = sps->vui_parameters.num_reorder_frames;
if (max_reorder_frames > max_dpb_frames) {
GST_WARNING_OBJECT (self, "num_reorder_frames %d > dpb size %d",
max_reorder_frames, max_dpb_frames);
max_reorder_frames = max_dpb_frames;
}
} else {
if (sps->profile_idc == 66 || sps->profile_idc == 83) {
/* baseline, constrained baseline and scalable-baseline profiles
only contain I/P frames. */
max_reorder_frames = 0;
} else if (sps->constraint_set3_flag) {
/* constraint_set3_flag may mean the -intra only profile. */
switch (sps->profile_idc) {
case 44:
case 86:
case 100:
case 110:
case 122:
case 244:
max_reorder_frames = 0;
break;
default:
break;
}
}
}
GST_DEBUG_OBJECT (self, "Max num reorder frames %d", max_reorder_frames);
gst_codec_timestamper_set_window_size (GST_CODEC_TIMESTAMPER_CAST (self),
max_reorder_frames);
}
static void
gst_h264_timestamper_process_nal (GstH264Timestamper * self,
GstH264NalUnit * nalu)
{
GstH264ParserResult ret;
switch (nalu->type) {
case GST_H264_NAL_SPS:{
GstH264SPS sps;
ret = gst_h264_parser_parse_sps (self->parser, nalu, &sps);
if (ret != GST_H264_PARSER_OK) {
GST_WARNING_OBJECT (self, "Failed to parse SPS");
break;
}
gst_h264_timestamper_process_sps (self, &sps);
gst_h264_sps_clear (&sps);
break;
}
/* TODO: parse PPS/SLICE and correct PTS based on POC if needed */
default:
break;
}
}
static GstFlowReturn
gst_h264_timestamper_handle_buffer (GstCodecTimestamper * timestamper,
GstBuffer * buffer)
{
GstH264Timestamper *self = GST_H264_TIMESTAMPER (timestamper);
GstMapInfo map;
/* Ignore any error while parsing NAL */
if (gst_buffer_map (buffer, &map, GST_MAP_READ)) {
GstH264ParserResult ret;
GstH264NalUnit nalu;
if (self->packetized) {
ret = gst_h264_parser_identify_nalu_avc (self->parser,
map.data, 0, map.size, self->nal_length_size, &nalu);
while (ret == GST_H264_PARSER_OK) {
gst_h264_timestamper_process_nal (self, &nalu);
ret = gst_h264_parser_identify_nalu_avc (self->parser,
map.data, nalu.offset + nalu.size, map.size, self->nal_length_size,
&nalu);
}
} else {
ret = gst_h264_parser_identify_nalu (self->parser,
map.data, 0, map.size, &nalu);
if (ret == GST_H264_PARSER_NO_NAL_END)
ret = GST_H264_PARSER_OK;
while (ret == GST_H264_PARSER_OK) {
gst_h264_timestamper_process_nal (self, &nalu);
ret = gst_h264_parser_identify_nalu (self->parser,
map.data, nalu.offset + nalu.size, map.size, &nalu);
if (ret == GST_H264_PARSER_NO_NAL_END)
ret = GST_H264_PARSER_OK;
}
}
gst_buffer_unmap (buffer, &map);
}
return GST_FLOW_OK;
}
static void
gst_h264_timestamper_reset (GstH264Timestamper * self)
{
g_clear_pointer (&self->parser, gst_h264_nal_parser_free);
}
static gboolean
gst_h264_timestamper_start (GstCodecTimestamper * timestamper)
{
GstH264Timestamper *self = GST_H264_TIMESTAMPER (timestamper);
gst_h264_timestamper_reset (self);
self->parser = gst_h264_nal_parser_new ();
return TRUE;
}
static gboolean
gst_h264_timestamper_stop (GstCodecTimestamper * timestamper)
{
GstH264Timestamper *self = GST_H264_TIMESTAMPER (timestamper);
gst_h264_timestamper_reset (self);
return TRUE;
}

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/* 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.
*/
#pragma once
#include <gst/gst.h>
#include "gstcodectimestamper.h"
G_BEGIN_DECLS
#define GST_TYPE_H264_TIMESTAMPER (gst_h264_timestamper_get_type())
G_DECLARE_FINAL_TYPE (GstH264Timestamper, gst_h264_timestamper,
GST, H264_TIMESTAMPER, GstCodecTimestamper);
GST_ELEMENT_REGISTER_DECLARE (h264timestamper);
G_END_DECLS

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/* 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.
*/
/**
* SECTION:element-h265timestamper
* @title: h265timestamper
*
* A timestamp correction element for H.265 stream.
*
* ## Example launch line
* ```
* gst-launch-1.0 filesrc location=video.mkv ! matroskademux ! h265parse ! h265timestamper ! mp4mux ! filesink location=output.mp4
* ```
*
* Since: 1.22
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/base/base.h>
#include <gst/codecparsers/gsth265parser.h>
#include "gsth265timestamper.h"
GST_DEBUG_CATEGORY_STATIC (gst_h265_timestamper_debug);
#define GST_CAT_DEFAULT gst_h265_timestamper_debug
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h265, alignment=(string) au"));
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-h265, alignment=(string) au"));
struct _GstH265Timestamper
{
GstCodecTimestamper parent;
GstH265Parser *parser;
gboolean packetized;
guint nal_length_size;
};
static gboolean gst_h265_timestamper_start (GstCodecTimestamper * timestamper);
static gboolean gst_h265_timestamper_stop (GstCodecTimestamper * timestamper);
static gboolean gst_h265_timestamper_set_caps (GstCodecTimestamper *
timestamper, GstCaps * caps);
static GstFlowReturn gst_h265_timestamper_handle_buffer (GstCodecTimestamper *
timestamper, GstBuffer * buffer);
static void gst_h265_timestamper_process_nal (GstH265Timestamper * self,
GstH265NalUnit * nalu);
G_DEFINE_TYPE (GstH265Timestamper,
gst_h265_timestamper, GST_TYPE_CODEC_TIMESTAMPER);
GST_ELEMENT_REGISTER_DEFINE (h265timestamper, "h265timestamper",
GST_RANK_NONE, GST_TYPE_H265_TIMESTAMPER);
static void
gst_h265_timestamper_class_init (GstH265TimestamperClass * klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCodecTimestamperClass *timestamper_class =
GST_CODEC_TIMESTAMPER_CLASS (klass);
gst_element_class_add_static_pad_template (element_class, &sinktemplate);
gst_element_class_add_static_pad_template (element_class, &srctemplate);
gst_element_class_set_static_metadata (element_class, "H.265 timestamper",
"Codec/Video", "Timestamp H.265 streams",
"Seungha Yang <seungha@centricular.com>");
timestamper_class->start = GST_DEBUG_FUNCPTR (gst_h265_timestamper_start);
timestamper_class->stop = GST_DEBUG_FUNCPTR (gst_h265_timestamper_stop);
timestamper_class->set_caps =
GST_DEBUG_FUNCPTR (gst_h265_timestamper_set_caps);
timestamper_class->handle_buffer =
GST_DEBUG_FUNCPTR (gst_h265_timestamper_handle_buffer);
GST_DEBUG_CATEGORY_INIT (gst_h265_timestamper_debug, "h265timestamper", 0,
"h265timestamper");
}
static void
gst_h265_timestamper_init (GstH265Timestamper * self)
{
}
static gboolean
gst_h265_timestamper_set_caps (GstCodecTimestamper * timestamper,
GstCaps * caps)
{
GstH265Timestamper *self = GST_H265_TIMESTAMPER (timestamper);
GstStructure *s = gst_caps_get_structure (caps, 0);
const gchar *str;
gboolean found_format = FALSE;
const GValue *codec_data_val;
self->packetized = FALSE;
self->nal_length_size = 4;
str = gst_structure_get_string (s, "stream-format");
if (g_strcmp0 (str, "hvc1") == 0 || g_strcmp0 (str, "hev1") == 0) {
self->packetized = TRUE;
found_format = TRUE;
} else if (g_strcmp0 (str, "byte-stream") == 0) {
found_format = TRUE;
}
codec_data_val = gst_structure_get_value (s, "codec_data");
if (codec_data_val && GST_VALUE_HOLDS_BUFFER (codec_data_val)) {
GstBuffer *codec_data = gst_value_get_buffer (codec_data_val);
GstH265Parser *parser = self->parser;
GstMapInfo map;
GstH265NalUnit nalu;
GstH265ParserResult pres;
guint num_nal_arrays;
guint off;
guint num_nals, i, j;
guint8 *data;
gsize size;
if (!gst_buffer_map (codec_data, &map, GST_MAP_READ)) {
GST_ERROR_OBJECT (self, "Unable to map codec-data buffer");
return FALSE;
}
data = map.data;
size = map.size;
/* parse the hvcC data */
if (size < 23) {
GST_WARNING_OBJECT (self, "hvcC too small");
goto unmap;
}
/* wrong hvcC version */
if (data[0] != 0 && data[0] != 1) {
goto unmap;
}
self->nal_length_size = (data[21] & 0x03) + 1;
GST_DEBUG_OBJECT (self, "nal length size %u", self->nal_length_size);
num_nal_arrays = data[22];
off = 23;
for (i = 0; i < num_nal_arrays; i++) {
if (off + 3 >= size) {
GST_WARNING_OBJECT (self, "hvcC too small");
goto unmap;
}
num_nals = GST_READ_UINT16_BE (data + off + 1);
off += 3;
for (j = 0; j < num_nals; j++) {
pres = gst_h265_parser_identify_nalu_hevc (parser,
data, off, size, 2, &nalu);
if (pres != GST_H265_PARSER_OK) {
GST_WARNING_OBJECT (self, "hvcC too small");
goto unmap;
}
gst_h265_timestamper_process_nal (self, &nalu);
off = nalu.offset + nalu.size;
}
}
/* codec_data would mean packetized format */
if (!found_format)
self->packetized = TRUE;
unmap:
gst_buffer_unmap (codec_data, &map);
}
return TRUE;
}
static void
gst_h265_timestamper_process_sps (GstH265Timestamper * self, GstH265SPS * sps)
{
guint max_reorder_frames =
sps->max_num_reorder_pics[sps->max_sub_layers_minus1];
GST_DEBUG_OBJECT (self, "Max num reorder frames %d", max_reorder_frames);
gst_codec_timestamper_set_window_size (GST_CODEC_TIMESTAMPER_CAST (self),
max_reorder_frames);
}
static void
gst_h265_timestamper_process_nal (GstH265Timestamper * self,
GstH265NalUnit * nalu)
{
GstH265ParserResult ret;
switch (nalu->type) {
case GST_H265_NAL_VPS:{
GstH265VPS vps;
ret = gst_h265_parser_parse_vps (self->parser, nalu, &vps);
if (ret != GST_H265_PARSER_OK)
GST_WARNING_OBJECT (self, "Failed to parse SPS");
break;
}
case GST_H265_NAL_SPS:{
GstH265SPS sps;
ret = gst_h265_parser_parse_sps (self->parser, nalu, &sps, FALSE);
if (ret != GST_H265_PARSER_OK) {
GST_WARNING_OBJECT (self, "Failed to parse SPS");
break;
}
gst_h265_timestamper_process_sps (self, &sps);
break;
}
/* TODO: parse PPS/SLICE and correct PTS based on POC if needed */
default:
break;
}
}
static GstFlowReturn
gst_h265_timestamper_handle_buffer (GstCodecTimestamper * timestamper,
GstBuffer * buffer)
{
GstH265Timestamper *self = GST_H265_TIMESTAMPER (timestamper);
GstMapInfo map;
/* Ignore any error while parsing NAL */
if (gst_buffer_map (buffer, &map, GST_MAP_READ)) {
GstH265ParserResult ret;
GstH265NalUnit nalu;
if (self->packetized) {
ret = gst_h265_parser_identify_nalu_hevc (self->parser,
map.data, 0, map.size, self->nal_length_size, &nalu);
while (ret == GST_H265_PARSER_OK) {
gst_h265_timestamper_process_nal (self, &nalu);
ret = gst_h265_parser_identify_nalu_hevc (self->parser,
map.data, nalu.offset + nalu.size, map.size, self->nal_length_size,
&nalu);
}
} else {
ret = gst_h265_parser_identify_nalu (self->parser,
map.data, 0, map.size, &nalu);
if (ret == GST_H265_PARSER_NO_NAL_END)
ret = GST_H265_PARSER_OK;
while (ret == GST_H265_PARSER_OK) {
gst_h265_timestamper_process_nal (self, &nalu);
ret = gst_h265_parser_identify_nalu (self->parser,
map.data, nalu.offset + nalu.size, map.size, &nalu);
if (ret == GST_H265_PARSER_NO_NAL_END)
ret = GST_H265_PARSER_OK;
}
}
gst_buffer_unmap (buffer, &map);
}
return GST_FLOW_OK;
}
static void
gst_h265_timestamper_reset (GstH265Timestamper * self)
{
g_clear_pointer (&self->parser, gst_h265_parser_free);
}
static gboolean
gst_h265_timestamper_start (GstCodecTimestamper * timestamper)
{
GstH265Timestamper *self = GST_H265_TIMESTAMPER (timestamper);
gst_h265_timestamper_reset (self);
self->parser = gst_h265_parser_new ();
return TRUE;
}
static gboolean
gst_h265_timestamper_stop (GstCodecTimestamper * timestamper)
{
GstH265Timestamper *self = GST_H265_TIMESTAMPER (timestamper);
gst_h265_timestamper_reset (self);
return TRUE;
}

33
subprojects/gst-plugins-bad/gst/codectimestamper/gsth265timestamper.h Normal file
View file

@ -0,0 +1,33 @@
/* 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.
*/
#pragma once
#include <gst/gst.h>
#include "gstcodectimestamper.h"
G_BEGIN_DECLS
#define GST_TYPE_H265_TIMESTAMPER (gst_h265_timestamper_get_type())
G_DECLARE_FINAL_TYPE (GstH265Timestamper, gst_h265_timestamper,
GST, H265_TIMESTAMPER, GstCodecTimestamper);
GST_ELEMENT_REGISTER_DECLARE (h265timestamper);
G_END_DECLS

17
subprojects/gst-plugins-bad/gst/codectimestamper/meson.build Normal file
View file

@ -0,0 +1,17 @@
codectimestamper_sources = [
'gstcodectimestamper.c',
'gsth264timestamper.c',
'gsth265timestamper.c',
'plugin.c',
]
gstcodectimestamper = library('gstcodectimestamper',
codectimestamper_sources,
c_args : gst_plugins_bad_args + [ '-DGST_USE_UNSTABLE_API' ],
include_directories : [configinc],
dependencies : [gstcodecparsers_dep, gstbase_dep, gstvideo_dep],
install : true,
install_dir : plugins_install_dir,
)
pkgconfig.generate(gstcodectimestamper, install_dir : plugins_pkgconfig_install_dir)
plugins += [gstcodectimestamper]

47
subprojects/gst-plugins-bad/gst/codectimestamper/plugin.c Normal file
View file

@ -0,0 +1,47 @@
/*
* 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.
*/
/**
* plugin-codectimestamper:
*
* Since: 1.22
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gsth264timestamper.h"
#include "gsth265timestamper.h"
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_ELEMENT_REGISTER (h264timestamper, plugin);
GST_ELEMENT_REGISTER (h265timestamper, plugin);
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
codectimestamper,
"codectimestamper",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);

3
subprojects/gst-plugins-bad/gst/meson.build
View file

@ -1,7 +1,8 @@
foreach plugin : ['accurip', 'adpcmdec', 'adpcmenc', 'aiff', 'asfmux', foreach plugin : ['accurip', 'adpcmdec', 'adpcmenc', 'aiff', 'asfmux',
'audiobuffersplit', 'audiofxbad', 'audiomixmatrix', 'audiobuffersplit', 'audiofxbad', 'audiomixmatrix',
'audiolatency', 'audiovisualizers', 'autoconvert', 'bayer', 'audiolatency', 'audiovisualizers', 'autoconvert', 'bayer',
'camerabin2', 'codecalpha', 'coloreffects', 'debugutils', 'dvbsubenc', 'camerabin2', 'codecalpha', 'codectimestamper', 'coloreffects',
'debugutils', 'dvbsubenc',
'dvbsuboverlay', 'dvdspu', 'faceoverlay', 'festival', 'dvbsuboverlay', 'dvdspu', 'faceoverlay', 'festival',
'fieldanalysis', 'freeverb', 'frei0r', 'gaudieffects', 'gdp', 'fieldanalysis', 'freeverb', 'frei0r', 'gaudieffects', 'gdp',
'geometrictransform', 'id3tag', 'inter', 'interlace', 'geometrictransform', 'id3tag', 'inter', 'interlace',

1
subprojects/gst-plugins-bad/meson_options.txt
View file

@ -16,6 +16,7 @@ option('autoconvert', type : 'feature', value : 'auto')
option('bayer', type : 'feature', value : 'auto') option('bayer', type : 'feature', value : 'auto')
option('camerabin2', type : 'feature', value : 'auto') option('camerabin2', type : 'feature', value : 'auto')
option('codecalpha', type : 'feature', value : 'auto') option('codecalpha', type : 'feature', value : 'auto')
option('codectimestamper', type : 'feature', value : 'auto')
option('coloreffects', type : 'feature', value : 'auto') option('coloreffects', type : 'feature', value : 'auto')
option('debugutils', type : 'feature', value : 'auto') option('debugutils', type : 'feature', value : 'auto')
option('dvbsubenc', type : 'feature', value : 'auto') option('dvbsubenc', type : 'feature', value : 'auto')