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gstreamer/subprojects/gst-plugins-good/gst/multifile/gstsplitmuxpartreader.c

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splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* GStreamer Split Demuxer bin that recombines files created by
* the splitmuxsink element.
*
* Copyright (C) <2014> Jan Schmidt <jan@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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "gstsplitmuxsrc.h"
GST_DEBUG_CATEGORY_STATIC (splitmux_part_debug);
#define GST_CAT_DEFAULT splitmux_part_debug
#define SPLITMUX_PART_LOCK(p) g_mutex_lock(&(p)->lock)
#define SPLITMUX_PART_UNLOCK(p) g_mutex_unlock(&(p)->lock)
#define SPLITMUX_PART_WAIT(p) g_cond_wait (&(p)->inactive_cond, &(p)->lock)
#define SPLITMUX_PART_BROADCAST(p) g_cond_broadcast (&(p)->inactive_cond)
splitmuxsrc: Use a separate lock to delay typefind. Don't hold the main splitmux part lock over the parent state change function, as it prevents posting error messages that happen. Since the purpose is to prevent typefinding from proceeding, use a separate mutex just for that.
2015-06-24 15:35:27 +00:00
#define SPLITMUX_PART_TYPE_LOCK(p) g_mutex_lock(&(p)->type_lock)
#define SPLITMUX_PART_TYPE_UNLOCK(p) g_mutex_unlock(&(p)->type_lock)
splitmuxsrc: Fix some deadlock conditions and a crash When switching the splitmuxsrc state back to NULL quickly, it can encounter deadlocks shutting down the part readers that are still starting up, or encounter a crash if the splitmuxsrc cleaned up the parts before the async callback could run. Taking the state lock to post async-start / async-done messages can deadlock if the state change function is trying to shut down the element, so use some finer grained locks for that.
2020-03-23 13:23:24 +00:00
#define SPLITMUX_PART_MSG_LOCK(p) g_mutex_lock(&(p)->msg_lock)
#define SPLITMUX_PART_MSG_UNLOCK(p) g_mutex_unlock(&(p)->msg_lock)
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
typedef struct _GstSplitMuxPartPad
{
GstPad parent;
/* Reader we belong to */
GstSplitMuxPartReader *reader;
/* Output splitmuxsrc source pad */
GstPad *target;
GstDataQueue *queue;
gboolean is_eos;
gboolean flushing;
gboolean seen_buffer;
splitmuxpartreader: identify sparse streams
2017-02-22 09:21:06 +00:00
gboolean is_sparse;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
GstClockTime max_ts;
GstSegment segment;
GstSegment orig_segment;
GstClockTime initial_ts_offset;
} GstSplitMuxPartPad;
typedef struct _GstSplitMuxPartPadClass
{
GstPadClass parent;
} GstSplitMuxPartPadClass;
static GType gst_splitmux_part_pad_get_type (void);
#define SPLITMUX_TYPE_PART_PAD gst_splitmux_part_pad_get_type()
#define SPLITMUX_PART_PAD_CAST(p) ((GstSplitMuxPartPad *)(p))
static void splitmux_part_pad_constructed (GObject * pad);
static void splitmux_part_pad_finalize (GObject * pad);
static void handle_buffer_measuring (GstSplitMuxPartReader * reader,
GstSplitMuxPartPad * part_pad, GstBuffer * buf);
static gboolean splitmux_data_queue_is_full_cb (GstDataQueue * queue,
guint visible, guint bytes, guint64 time, gpointer checkdata);
static void type_found (GstElement * typefind, guint probability,
GstCaps * caps, GstSplitMuxPartReader * reader);
static void check_if_pads_collected (GstSplitMuxPartReader * reader);
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
static void
gst_splitmux_part_reader_finish_measuring_streams (GstSplitMuxPartReader *
reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* Called with reader lock held */
static gboolean
have_empty_queue (GstSplitMuxPartReader * reader)
{
GList *cur;
for (cur = g_list_first (reader->pads); cur != NULL; cur = g_list_next (cur)) {
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (cur->data);
if (part_pad->is_eos) {
GST_LOG_OBJECT (part_pad, "Pad is EOS");
return TRUE;
}
if (gst_data_queue_is_empty (part_pad->queue)) {
GST_LOG_OBJECT (part_pad, "Queue is empty");
return TRUE;
}
}
return FALSE;
}
/* Called with reader lock held */
static gboolean
block_until_can_push (GstSplitMuxPartReader * reader)
{
while (reader->running) {
if (reader->flushing)
goto out;
if (reader->active && have_empty_queue (reader))
goto out;
GST_LOG_OBJECT (reader,
"Waiting for activation or empty queue on reader %s", reader->path);
SPLITMUX_PART_WAIT (reader);
}
GST_LOG_OBJECT (reader, "Done waiting on reader %s active %d flushing %d",
reader->path, reader->active, reader->flushing);
out:
return reader->active && !reader->flushing;
}
static void
handle_buffer_measuring (GstSplitMuxPartReader * reader,
GstSplitMuxPartPad * part_pad, GstBuffer * buf)
{
splitmuxsrc: Allow for buffers before the segment when measuring Used signed calculations when measuring the max_ts of an input fragment, so as to calculate the correct duration and offset when buffers have timestamps preceding their segment
2017-02-07 02:10:18 +00:00
GstClockTimeDiff ts = GST_CLOCK_STIME_NONE;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
GstClockTimeDiff offset;
if (reader->prep_state == PART_STATE_PREPARING_COLLECT_STREAMS &&
!part_pad->seen_buffer) {
/* If this is the first buffer on the pad in the collect_streams state,
documentation: fix a number of typos
2019-09-02 12:27:35 +00:00
* then calculate initial offset based on running time of this segment */
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
part_pad->initial_ts_offset =
part_pad->orig_segment.start + part_pad->orig_segment.base -
part_pad->orig_segment.time;
GST_DEBUG_OBJECT (reader,
"Initial TS offset for pad %" GST_PTR_FORMAT " now %" GST_TIME_FORMAT,
part_pad, GST_TIME_ARGS (part_pad->initial_ts_offset));
}
part_pad->seen_buffer = TRUE;
/* Adjust buffer timestamps */
offset = reader->start_offset + part_pad->segment.base;
offset -= part_pad->initial_ts_offset;
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
/* We don't add the ts_offset here, because we
* want to measure the logical length of the stream,
* not to generate output timestamps */
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* Update the stored max duration on the pad,
* always preferring making DTS contiguous
* where possible */
if (GST_BUFFER_DTS_IS_VALID (buf))
ts = GST_BUFFER_DTS (buf) + offset;
else if (GST_BUFFER_PTS_IS_VALID (buf))
ts = GST_BUFFER_PTS (buf) + offset;
GST_DEBUG_OBJECT (reader, "Pad %" GST_PTR_FORMAT
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
" incoming DTS %" GST_TIME_FORMAT
" PTS %" GST_TIME_FORMAT " offset by %" GST_STIME_FORMAT
splitmuxsrc: Allow for buffers before the segment when measuring Used signed calculations when measuring the max_ts of an input fragment, so as to calculate the correct duration and offset when buffers have timestamps preceding their segment
2017-02-07 02:10:18 +00:00
" to %" GST_STIME_FORMAT, part_pad,
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
GST_TIME_ARGS (GST_BUFFER_PTS (buf)),
splitmuxsrc: Allow for buffers before the segment when measuring Used signed calculations when measuring the max_ts of an input fragment, so as to calculate the correct duration and offset when buffers have timestamps preceding their segment
2017-02-07 02:10:18 +00:00
GST_STIME_ARGS (offset), GST_STIME_ARGS (ts));
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
splitmuxsrc: Allow for buffers before the segment when measuring Used signed calculations when measuring the max_ts of an input fragment, so as to calculate the correct duration and offset when buffers have timestamps preceding their segment
2017-02-07 02:10:18 +00:00
if (GST_CLOCK_STIME_IS_VALID (ts)) {
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
if (GST_BUFFER_DURATION_IS_VALID (buf))
ts += GST_BUFFER_DURATION (buf);
splitmuxsrc: Allow for buffers before the segment when measuring Used signed calculations when measuring the max_ts of an input fragment, so as to calculate the correct duration and offset when buffers have timestamps preceding their segment
2017-02-07 02:10:18 +00:00
if (GST_CLOCK_STIME_IS_VALID (ts)
&& ts > (GstClockTimeDiff) part_pad->max_ts) {
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
part_pad->max_ts = ts;
GST_LOG_OBJECT (reader,
"pad %" GST_PTR_FORMAT " max TS now %" GST_TIME_FORMAT, part_pad,
GST_TIME_ARGS (part_pad->max_ts));
}
}
/* Is it time to move to measuring state yet? */
check_if_pads_collected (reader);
}
static gboolean
splitmux_data_queue_is_full_cb (GstDataQueue * queue,
guint visible, guint bytes, guint64 time, gpointer checkdata)
{
/* Arbitrary safety limit. If we hit it, playback is likely to stall */
if (time > 20 * GST_SECOND)
return TRUE;
return FALSE;
}
static void
splitmux_part_free_queue_item (GstDataQueueItem * item)
{
gst_mini_object_unref (item->object);
g_slice_free (GstDataQueueItem, item);
}
static GstFlowReturn
splitmux_part_pad_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
{
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (pad);
GstSplitMuxPartReader *reader = part_pad->reader;
GstDataQueueItem *item;
GstClockTimeDiff offset;
GST_LOG_OBJECT (reader, "Pad %" GST_PTR_FORMAT " %" GST_PTR_FORMAT, pad, buf);
SPLITMUX_PART_LOCK (reader);
if (reader->prep_state == PART_STATE_PREPARING_COLLECT_STREAMS ||
reader->prep_state == PART_STATE_PREPARING_MEASURE_STREAMS) {
handle_buffer_measuring (reader, part_pad, buf);
gst_buffer_unref (buf);
SPLITMUX_PART_UNLOCK (reader);
return GST_FLOW_OK;
}
if (!block_until_can_push (reader)) {
/* Flushing */
SPLITMUX_PART_UNLOCK (reader);
gst_buffer_unref (buf);
return GST_FLOW_FLUSHING;
}
/* Adjust buffer timestamps */
offset = reader->start_offset + part_pad->segment.base;
offset -= part_pad->initial_ts_offset;
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
offset += reader->ts_offset;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
if (GST_BUFFER_PTS_IS_VALID (buf))
GST_BUFFER_PTS (buf) += offset;
if (GST_BUFFER_DTS_IS_VALID (buf))
GST_BUFFER_DTS (buf) += offset;
/* We are active, and one queue is empty, place this buffer in
* the dataqueue */
GST_LOG_OBJECT (reader, "Enqueueing buffer %" GST_PTR_FORMAT, buf);
item = g_slice_new (GstDataQueueItem);
item->destroy = (GDestroyNotify) splitmux_part_free_queue_item;
item->object = GST_MINI_OBJECT (buf);
item->size = gst_buffer_get_size (buf);
item->duration = GST_BUFFER_DURATION (buf);
if (item->duration == GST_CLOCK_TIME_NONE)
item->duration = 0;
item->visible = TRUE;
gst_object_ref (part_pad);
SPLITMUX_PART_UNLOCK (reader);
if (!gst_data_queue_push (part_pad->queue, item)) {
splitmux_part_free_queue_item (item);
gst_object_unref (part_pad);
return GST_FLOW_FLUSHING;
}
gst_object_unref (part_pad);
return GST_FLOW_OK;
}
/* Called with splitmux part lock held */
static gboolean
splitmux_part_is_eos_locked (GstSplitMuxPartReader * part)
{
GList *cur;
for (cur = g_list_first (part->pads); cur != NULL; cur = g_list_next (cur)) {
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (cur->data);
splitmuxsrc: don't consider unlinked pads when deactivating part If splitmuxsrc exposes multiple pads, but only one is linked, part pads will never see an EOS event. This shouldn't prevent the part from being eventually deactivated. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3148>
2022-09-30 16:57:01 +00:00
if (GST_PAD_LAST_FLOW_RETURN (part_pad->target) != GST_FLOW_NOT_LINKED
&& !part_pad->is_eos)
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
return FALSE;
}
return TRUE;
}
static gboolean
splitmux_part_is_prerolled_locked (GstSplitMuxPartReader * part)
{
GList *cur;
GST_LOG_OBJECT (part, "Checking for preroll");
for (cur = g_list_first (part->pads); cur != NULL; cur = g_list_next (cur)) {
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (cur->data);
if (!part_pad->seen_buffer) {
GST_LOG_OBJECT (part, "Part pad %" GST_PTR_FORMAT " is not prerolled",
part_pad);
return FALSE;
}
}
GST_LOG_OBJECT (part, "Part is prerolled");
return TRUE;
}
gboolean
gst_splitmux_part_is_eos (GstSplitMuxPartReader * reader)
{
gboolean res;
SPLITMUX_PART_LOCK (reader);
res = splitmux_part_is_eos_locked (reader);
SPLITMUX_PART_UNLOCK (reader);
return res;
}
/* Called with splitmux part lock held */
static gboolean
splitmux_is_flushing (GstSplitMuxPartReader * reader)
{
GList *cur;
for (cur = g_list_first (reader->pads); cur != NULL; cur = g_list_next (cur)) {
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (cur->data);
if (part_pad->flushing)
return TRUE;
}
return FALSE;
}
static gboolean
splitmux_part_pad_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (pad);
GstSplitMuxPartReader *reader = part_pad->reader;
gboolean ret = TRUE;
SplitMuxSrcPad *target;
GstDataQueueItem *item;
SPLITMUX_PART_LOCK (reader);
target = gst_object_ref (part_pad->target);
GST_LOG_OBJECT (reader, "Pad %" GST_PTR_FORMAT " event %" GST_PTR_FORMAT, pad,
event);
if (part_pad->flushing && GST_EVENT_TYPE (event) != GST_EVENT_FLUSH_STOP)
goto drop_event;
switch (GST_EVENT_TYPE (event)) {
splitmuxpartreader: identify sparse streams
2017-02-22 09:21:06 +00:00
case GST_EVENT_STREAM_START:{
GstStreamFlags flags;
gst_event_parse_stream_flags (event, &flags);
part_pad->is_sparse = (flags & GST_STREAM_FLAG_SPARSE);
break;
}
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
case GST_EVENT_SEGMENT:{
GstSegment *seg = &part_pad->segment;
GST_LOG_OBJECT (pad, "Received segment %" GST_PTR_FORMAT, event);
gst_event_copy_segment (event, seg);
gst_event_copy_segment (event, &part_pad->orig_segment);
if (seg->format != GST_FORMAT_TIME)
goto wrong_segment;
/* Adjust segment */
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
/* Adjust start/stop so the overall file is 0 + start_offset based,
* adding a fixed offset so that DTS is never negative */
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
if (seg->stop != -1) {
seg->stop -= seg->start;
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
seg->stop += seg->time + reader->start_offset + reader->ts_offset;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
}
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
seg->start = seg->time + reader->start_offset + reader->ts_offset;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
seg->time += reader->start_offset;
seg->position += reader->start_offset;
/* Replace event */
gst_event_unref (event);
event = gst_event_new_segment (seg);
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
GST_LOG_OBJECT (pad, "Adjusted segment now %" GST_PTR_FORMAT, event);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
if (reader->prep_state != PART_STATE_PREPARING_COLLECT_STREAMS
&& reader->prep_state != PART_STATE_PREPARING_MEASURE_STREAMS)
break; /* Only do further stuff with segments during initial measuring */
/* Take the first segment from the first part */
if (target->segment.format == GST_FORMAT_UNDEFINED) {
gst_segment_copy_into (seg, &target->segment);
GST_DEBUG_OBJECT (reader,
"Target pad segment now %" GST_SEGMENT_FORMAT, &target->segment);
}
if (seg->stop != -1 && target->segment.stop != -1) {
GstClockTime stop = seg->base + seg->stop;
if (stop > target->segment.stop) {
target->segment.stop = stop;
GST_DEBUG_OBJECT (reader,
"Adjusting segment stop by %" GST_TIME_FORMAT
" output now %" GST_SEGMENT_FORMAT,
GST_TIME_ARGS (reader->start_offset), &target->segment);
}
}
GST_LOG_OBJECT (pad, "Forwarding segment %" GST_PTR_FORMAT, event);
break;
}
case GST_EVENT_EOS:{
GST_DEBUG_OBJECT (part_pad,
"State %u EOS event. MaxTS seen %" GST_TIME_FORMAT,
reader->prep_state, GST_TIME_ARGS (part_pad->max_ts));
splitmux: Handle early EOS during part preparation Handle the case where a short file reaches EOS while we're still waiting for no-more-pads, and make sure we continue to the internal READY state for real playback to work properly later.
2015-02-05 19:42:17 +00:00
if (reader->prep_state == PART_STATE_PREPARING_COLLECT_STREAMS ||
reader->prep_state == PART_STATE_PREPARING_MEASURE_STREAMS) {
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* Mark this pad as EOS */
part_pad->is_eos = TRUE;
if (splitmux_part_is_eos_locked (reader)) {
/* Finished measuring things, set state and tell the state change func
* so it can seek back to the start */
splitmux: Handle early EOS during part preparation Handle the case where a short file reaches EOS while we're still waiting for no-more-pads, and make sure we continue to the internal READY state for real playback to work properly later.
2015-02-05 19:42:17 +00:00
GST_LOG_OBJECT (reader,
"EOS while measuring streams. Resetting for ready");
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
reader->prep_state = PART_STATE_PREPARING_RESET_FOR_READY;
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
gst_element_call_async (GST_ELEMENT_CAST (reader),
(GstElementCallAsyncFunc)
gst_splitmux_part_reader_finish_measuring_streams, NULL, NULL);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
}
goto drop_event;
}
break;
}
case GST_EVENT_FLUSH_START:
reader->flushing = TRUE;
part_pad->flushing = TRUE;
GST_LOG_OBJECT (reader, "Pad %" GST_PTR_FORMAT " flushing dataqueue",
part_pad);
gst_data_queue_set_flushing (part_pad->queue, TRUE);
SPLITMUX_PART_BROADCAST (reader);
break;
case GST_EVENT_FLUSH_STOP:{
gst_data_queue_set_flushing (part_pad->queue, FALSE);
gst_data_queue_flush (part_pad->queue);
part_pad->seen_buffer = FALSE;
part_pad->flushing = FALSE;
part_pad->is_eos = FALSE;
reader->flushing = splitmux_is_flushing (reader);
GST_LOG_OBJECT (reader,
"%s pad %" GST_PTR_FORMAT " flush_stop. Overall flushing=%d",
reader->path, pad, reader->flushing);
SPLITMUX_PART_BROADCAST (reader);
break;
}
default:
break;
}
/* Don't send events downstream while preparing */
if (reader->prep_state != PART_STATE_READY)
goto drop_event;
/* Don't pass flush events - those are done by the parent */
if (GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_START ||
GST_EVENT_TYPE (event) == GST_EVENT_FLUSH_STOP)
goto drop_event;
splitmuxsrc: Don't return FALSE from event handling. Returning FALSE because we drop an event means that internal sources like qtdemux might throw an error and break the whole pipeline. The only time it can happen is either flushing or shutdown, and those will be handled anyway.
2017-11-17 15:01:58 +00:00
if (!block_until_can_push (reader))
goto drop_event;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_GAP:{
/* FIXME: Drop initial gap (if any) in each segment, not all GAPs */
goto drop_event;
}
default:
break;
}
/* We are active, and one queue is empty, place this buffer in
* the dataqueue */
gst_object_ref (part_pad->queue);
SPLITMUX_PART_UNLOCK (reader);
GST_LOG_OBJECT (reader, "Enqueueing event %" GST_PTR_FORMAT, event);
item = g_slice_new (GstDataQueueItem);
item->destroy = (GDestroyNotify) splitmux_part_free_queue_item;
item->object = GST_MINI_OBJECT (event);
item->size = 0;
item->duration = 0;
if (item->duration == GST_CLOCK_TIME_NONE)
item->duration = 0;
item->visible = FALSE;
if (!gst_data_queue_push (part_pad->queue, item)) {
splitmux_part_free_queue_item (item);
ret = FALSE;
}
gst_object_unref (part_pad->queue);
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
gst_object_unref (target);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
return ret;
wrong_segment:
gst_event_unref (event);
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
gst_object_unref (target);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
SPLITMUX_PART_UNLOCK (reader);
GST_ELEMENT_ERROR (reader, STREAM, FAILED, (NULL),
("Received non-time segment - reader %s pad %" GST_PTR_FORMAT,
reader->path, pad));
return FALSE;
drop_event:
GST_LOG_OBJECT (pad, "Dropping event %" GST_PTR_FORMAT
" from %" GST_PTR_FORMAT " on %" GST_PTR_FORMAT, event, pad, target);
gst_event_unref (event);
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
gst_object_unref (target);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
SPLITMUX_PART_UNLOCK (reader);
return TRUE;
}
static gboolean
splitmux_part_pad_query (GstPad * pad, GstObject * parent, GstQuery * query)
{
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (pad);
GstSplitMuxPartReader *reader = part_pad->reader;
GstPad *target;
gboolean ret = FALSE;
gboolean active;
SPLITMUX_PART_LOCK (reader);
target = gst_object_ref (part_pad->target);
active = reader->active;
SPLITMUX_PART_UNLOCK (reader);
if (active) {
GST_LOG_OBJECT (pad, "Forwarding query %" GST_PTR_FORMAT
" from %" GST_PTR_FORMAT " on %" GST_PTR_FORMAT, query, pad, target);
ret = gst_pad_query (target, query);
}
gst_object_unref (target);
return ret;
}
G_DEFINE_TYPE (GstSplitMuxPartPad, gst_splitmux_part_pad, GST_TYPE_PAD);
static void
splitmux_part_pad_constructed (GObject * pad)
{
gst_pad_set_chain_function (GST_PAD (pad),
GST_DEBUG_FUNCPTR (splitmux_part_pad_chain));
gst_pad_set_event_function (GST_PAD (pad),
GST_DEBUG_FUNCPTR (splitmux_part_pad_event));
gst_pad_set_query_function (GST_PAD (pad),
GST_DEBUG_FUNCPTR (splitmux_part_pad_query));
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
G_OBJECT_CLASS (gst_splitmux_part_pad_parent_class)->constructed (pad);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
}
static void
gst_splitmux_part_pad_class_init (GstSplitMuxPartPadClass * klass)
{
GObjectClass *gobject_klass = (GObjectClass *) (klass);
gobject_klass->constructed = splitmux_part_pad_constructed;
gobject_klass->finalize = splitmux_part_pad_finalize;
}
static void
gst_splitmux_part_pad_init (GstSplitMuxPartPad * pad)
{
pad->queue = gst_data_queue_new (splitmux_data_queue_is_full_cb,
NULL, NULL, pad);
gst_segment_init (&pad->segment, GST_FORMAT_UNDEFINED);
gst_segment_init (&pad->orig_segment, GST_FORMAT_UNDEFINED);
}
static void
splitmux_part_pad_finalize (GObject * obj)
{
GstSplitMuxPartPad *pad = (GstSplitMuxPartPad *) (obj);
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
GST_DEBUG_OBJECT (obj, "finalize");
gst_data_queue_set_flushing (pad->queue, TRUE);
gst_data_queue_flush (pad->queue);
gst_object_unref (GST_OBJECT_CAST (pad->queue));
pad->queue = NULL;
G_OBJECT_CLASS (gst_splitmux_part_pad_parent_class)->finalize (obj);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
}
static void
new_decoded_pad_added_cb (GstElement * element, GstPad * pad,
GstSplitMuxPartReader * part);
static void no_more_pads (GstElement * element, GstSplitMuxPartReader * reader);
static GstStateChangeReturn
gst_splitmux_part_reader_change_state (GstElement * element,
GstStateChange transition);
static gboolean gst_splitmux_part_reader_send_event (GstElement * element,
GstEvent * event);
static void gst_splitmux_part_reader_set_flushing_locked (GstSplitMuxPartReader
* part, gboolean flushing);
static void bus_handler (GstBin * bin, GstMessage * msg);
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
static void splitmux_part_reader_dispose (GObject * object);
static void splitmux_part_reader_finalize (GObject * object);
static void splitmux_part_reader_reset (GstSplitMuxPartReader * reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
#define gst_splitmux_part_reader_parent_class parent_class
G_DEFINE_TYPE (GstSplitMuxPartReader, gst_splitmux_part_reader,
GST_TYPE_PIPELINE);
static void
gst_splitmux_part_reader_class_init (GstSplitMuxPartReaderClass * klass)
{
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
GObjectClass *gobject_klass = (GObjectClass *) (klass);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
GstElementClass *gstelement_class = (GstElementClass *) klass;
GstBinClass *gstbin_class = (GstBinClass *) klass;
GST_DEBUG_CATEGORY_INIT (splitmux_part_debug, "splitmuxpartreader", 0,
"Split File Demuxing Source helper");
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
gobject_klass->dispose = splitmux_part_reader_dispose;
gobject_klass->finalize = splitmux_part_reader_finalize;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
gstelement_class->change_state = gst_splitmux_part_reader_change_state;
gstelement_class->send_event = gst_splitmux_part_reader_send_event;
gstbin_class->handle_message = bus_handler;
}
static void
gst_splitmux_part_reader_init (GstSplitMuxPartReader * reader)
{
GstElement *typefind;
reader->active = FALSE;
reader->duration = GST_CLOCK_TIME_NONE;
g_cond_init (&reader->inactive_cond);
g_mutex_init (&reader->lock);
splitmuxsrc: Use a separate lock to delay typefind. Don't hold the main splitmux part lock over the parent state change function, as it prevents posting error messages that happen. Since the purpose is to prevent typefinding from proceeding, use a separate mutex just for that.
2015-06-24 15:35:27 +00:00
g_mutex_init (&reader->type_lock);
splitmuxsrc: Fix some deadlock conditions and a crash When switching the splitmuxsrc state back to NULL quickly, it can encounter deadlocks shutting down the part readers that are still starting up, or encounter a crash if the splitmuxsrc cleaned up the parts before the async callback could run. Taking the state lock to post async-start / async-done messages can deadlock if the state change function is trying to shut down the element, so use some finer grained locks for that.
2020-03-23 13:23:24 +00:00
g_mutex_init (&reader->msg_lock);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* FIXME: Create elements on a state change */
reader->src = gst_element_factory_make ("filesrc", NULL);
if (reader->src == NULL) {
GST_ERROR_OBJECT (reader, "Failed to create filesrc element");
return;
}
gst_bin_add (GST_BIN_CAST (reader), reader->src);
typefind = gst_element_factory_make ("typefind", NULL);
if (!typefind) {
GST_ERROR_OBJECT (reader,
"Failed to create typefind element - check your installation");
return;
}
gst_bin_add (GST_BIN_CAST (reader), typefind);
reader->typefind = typefind;
if (!gst_element_link_pads (reader->src, NULL, typefind, "sink")) {
GST_ERROR_OBJECT (reader,
"Failed to link typefind element - check your installation");
return;
}
g_signal_connect (reader->typefind, "have-type", G_CALLBACK (type_found),
reader);
}
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
static void
splitmux_part_reader_dispose (GObject * object)
{
GstSplitMuxPartReader *reader = (GstSplitMuxPartReader *) object;
splitmux_part_reader_reset (reader);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
splitmux_part_reader_finalize (GObject * object)
{
GstSplitMuxPartReader *reader = (GstSplitMuxPartReader *) object;
splitmuxpartreader: Fix GCond leak inactive_cond is not being cleared resulting in memory leak. https://bugzilla.gnome.org/show_bug.cgi?id=757924
2015-11-11 05:10:53 +00:00
g_cond_clear (&reader->inactive_cond);
splitmuxsrc: Use a separate lock to delay typefind. Don't hold the main splitmux part lock over the parent state change function, as it prevents posting error messages that happen. Since the purpose is to prevent typefinding from proceeding, use a separate mutex just for that.
2015-06-24 15:35:27 +00:00
g_mutex_clear (&reader->lock);
g_mutex_clear (&reader->type_lock);
splitmuxsrc: Fix some deadlock conditions and a crash When switching the splitmuxsrc state back to NULL quickly, it can encounter deadlocks shutting down the part readers that are still starting up, or encounter a crash if the splitmuxsrc cleaned up the parts before the async callback could run. Taking the state lock to post async-start / async-done messages can deadlock if the state change function is trying to shut down the element, so use some finer grained locks for that.
2020-03-23 13:23:24 +00:00
g_mutex_clear (&reader->msg_lock);
splitmuxsrc: Use a separate lock to delay typefind. Don't hold the main splitmux part lock over the parent state change function, as it prevents posting error messages that happen. Since the purpose is to prevent typefinding from proceeding, use a separate mutex just for that.
2015-06-24 15:35:27 +00:00
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
g_free (reader->path);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
static void
do_async_start (GstSplitMuxPartReader * reader)
{
GstMessage *message;
splitmuxsrc: Fix some deadlock conditions and a crash When switching the splitmuxsrc state back to NULL quickly, it can encounter deadlocks shutting down the part readers that are still starting up, or encounter a crash if the splitmuxsrc cleaned up the parts before the async callback could run. Taking the state lock to post async-start / async-done messages can deadlock if the state change function is trying to shut down the element, so use some finer grained locks for that.
2020-03-23 13:23:24 +00:00
SPLITMUX_PART_MSG_LOCK (reader);
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
reader->async_pending = TRUE;
message = gst_message_new_async_start (GST_OBJECT_CAST (reader));
GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (reader), message);
splitmuxsrc: Fix some deadlock conditions and a crash When switching the splitmuxsrc state back to NULL quickly, it can encounter deadlocks shutting down the part readers that are still starting up, or encounter a crash if the splitmuxsrc cleaned up the parts before the async callback could run. Taking the state lock to post async-start / async-done messages can deadlock if the state change function is trying to shut down the element, so use some finer grained locks for that.
2020-03-23 13:23:24 +00:00
SPLITMUX_PART_MSG_UNLOCK (reader);
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
}
static void
do_async_done (GstSplitMuxPartReader * reader)
{
GstMessage *message;
splitmuxsrc: Fix some deadlock conditions and a crash When switching the splitmuxsrc state back to NULL quickly, it can encounter deadlocks shutting down the part readers that are still starting up, or encounter a crash if the splitmuxsrc cleaned up the parts before the async callback could run. Taking the state lock to post async-start / async-done messages can deadlock if the state change function is trying to shut down the element, so use some finer grained locks for that.
2020-03-23 13:23:24 +00:00
SPLITMUX_PART_MSG_LOCK (reader);
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
if (reader->async_pending) {
message =
gst_message_new_async_done (GST_OBJECT_CAST (reader),
GST_CLOCK_TIME_NONE);
GST_BIN_CLASS (parent_class)->handle_message (GST_BIN_CAST (reader),
message);
reader->async_pending = FALSE;
}
splitmuxsrc: Fix some deadlock conditions and a crash When switching the splitmuxsrc state back to NULL quickly, it can encounter deadlocks shutting down the part readers that are still starting up, or encounter a crash if the splitmuxsrc cleaned up the parts before the async callback could run. Taking the state lock to post async-start / async-done messages can deadlock if the state change function is trying to shut down the element, so use some finer grained locks for that.
2020-03-23 13:23:24 +00:00
SPLITMUX_PART_MSG_UNLOCK (reader);
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
}
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
static void
splitmux_part_reader_reset (GstSplitMuxPartReader * reader)
{
GList *cur;
SPLITMUX_PART_LOCK (reader);
for (cur = g_list_first (reader->pads); cur != NULL; cur = g_list_next (cur)) {
GstPad *pad = GST_PAD_CAST (cur->data);
gst_pad_set_active (GST_PAD_CAST (pad), FALSE);
gst_object_unref (GST_OBJECT_CAST (pad));
}
g_list_free (reader->pads);
reader->pads = NULL;
SPLITMUX_PART_UNLOCK (reader);
}
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
static GstSplitMuxPartPad *
gst_splitmux_part_reader_new_proxy_pad (GstSplitMuxPartReader * reader,
GstPad * target)
{
GstSplitMuxPartPad *pad = g_object_new (SPLITMUX_TYPE_PART_PAD,
"name", GST_PAD_NAME (target),
"direction", GST_PAD_SINK,
NULL);
pad->target = target;
pad->reader = reader;
gst_pad_set_active (GST_PAD_CAST (pad), TRUE);
return pad;
}
static void
new_decoded_pad_added_cb (GstElement * element, GstPad * pad,
GstSplitMuxPartReader * reader)
{
GstPad *out_pad = NULL;
GstSplitMuxPartPad *proxy_pad;
GstCaps *caps;
GstPadLinkReturn link_ret;
caps = gst_pad_get_current_caps (pad);
GST_DEBUG_OBJECT (reader, "file %s new decoded pad %" GST_PTR_FORMAT
" caps %" GST_PTR_FORMAT, reader->path, pad, caps);
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
gst_caps_unref (caps);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* Look up or create the output pad */
if (reader->get_pad_cb)
out_pad = reader->get_pad_cb (reader, pad, reader->cb_data);
splitmuxsrc: Connect to demux signals before activating Fix a race in splitmuxsrc by properly connecting to the demuxer signals we're interested in *before* setting it running.
2016-05-15 12:07:14 +00:00
if (out_pad == NULL) {
GST_DEBUG_OBJECT (reader,
"No output pad for %" GST_PTR_FORMAT ". Ignoring", pad);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
return;
splitmuxsrc: Connect to demux signals before activating Fix a race in splitmuxsrc by properly connecting to the demuxer signals we're interested in *before* setting it running.
2016-05-15 12:07:14 +00:00
}
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* Create our proxy pad to interact with this new pad */
proxy_pad = gst_splitmux_part_reader_new_proxy_pad (reader, out_pad);
GST_DEBUG_OBJECT (reader,
"created proxy pad %" GST_PTR_FORMAT " for target %" GST_PTR_FORMAT,
proxy_pad, out_pad);
link_ret = gst_pad_link (pad, GST_PAD (proxy_pad));
if (link_ret != GST_PAD_LINK_OK) {
gst_object_unref (proxy_pad);
GST_ELEMENT_ERROR (reader, STREAM, FAILED, (NULL),
("Failed to link proxy pad for stream part %s pad %" GST_PTR_FORMAT
" ret %d", reader->path, pad, link_ret));
return;
}
GST_DEBUG_OBJECT (reader,
"new decoded pad %" GST_PTR_FORMAT " linked to %" GST_PTR_FORMAT,
pad, proxy_pad);
SPLITMUX_PART_LOCK (reader);
reader->pads = g_list_prepend (reader->pads, proxy_pad);
SPLITMUX_PART_UNLOCK (reader);
}
static gboolean
gst_splitmux_part_reader_send_event (GstElement * element, GstEvent * event)
{
GstSplitMuxPartReader *reader = (GstSplitMuxPartReader *) element;
gboolean ret = FALSE;
GstPad *pad = NULL;
/* Send event to the first source pad we found */
SPLITMUX_PART_LOCK (reader);
if (reader->pads) {
GstPad *proxy_pad = GST_PAD_CAST (reader->pads->data);
pad = gst_pad_get_peer (proxy_pad);
}
SPLITMUX_PART_UNLOCK (reader);
if (pad) {
ret = gst_pad_send_event (pad, event);
gst_object_unref (pad);
} else {
gst_event_unref (event);
}
return ret;
}
/* Called with lock held. Seeks to an 'internal' time from 0 to length of this piece */
static void
gst_splitmux_part_reader_seek_to_time_locked (GstSplitMuxPartReader * reader,
GstClockTime time)
{
SPLITMUX_PART_UNLOCK (reader);
GST_DEBUG_OBJECT (reader, "Seeking to time %" GST_TIME_FORMAT,
GST_TIME_ARGS (time));
gst_element_seek (GST_ELEMENT_CAST (reader), 1.0, GST_FORMAT_TIME,
GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, time,
GST_SEEK_TYPE_END, 0);
SPLITMUX_PART_LOCK (reader);
/* Wait for flush to finish, so old data is gone */
while (reader->flushing) {
GST_LOG_OBJECT (reader, "%s Waiting for flush to finish", reader->path);
SPLITMUX_PART_WAIT (reader);
}
}
/* Map the passed segment to 'internal' time from 0 to length of this piece and seek. Lock cannot be held */
static gboolean
gst_splitmux_part_reader_seek_to_segment (GstSplitMuxPartReader * reader,
splitmuxsrc: Pass seek flags when activating. Pass all seek flags when activating a part based on a seek, so that SNAP flags are preserved.
2016-12-28 11:49:27 +00:00
GstSegment * target_seg, GstSeekFlags extra_flags)
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
{
GstSeekFlags flags;
GstClockTime start = 0, stop = GST_CLOCK_TIME_NONE;
splitmuxsrc: Pass seek flags when activating. Pass all seek flags when activating a part based on a seek, so that SNAP flags are preserved.
2016-12-28 11:49:27 +00:00
flags = target_seg->flags | GST_SEEK_FLAG_FLUSH | extra_flags;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
SPLITMUX_PART_LOCK (reader);
if (target_seg->start >= reader->start_offset)
start = target_seg->start - reader->start_offset;
/* If the segment stop is within this part, don't play to the end */
if (target_seg->stop != -1 &&
target_seg->stop < reader->start_offset + reader->duration)
stop = target_seg->stop - reader->start_offset;
SPLITMUX_PART_UNLOCK (reader);
GST_DEBUG_OBJECT (reader,
"Seeking rate %f format %d flags 0x%x start %" GST_TIME_FORMAT " stop %"
GST_TIME_FORMAT, target_seg->rate, target_seg->format, flags,
GST_TIME_ARGS (start), GST_TIME_ARGS (stop));
return gst_element_seek (GST_ELEMENT_CAST (reader), target_seg->rate,
target_seg->format, flags, GST_SEEK_TYPE_SET, start, GST_SEEK_TYPE_SET,
stop);
}
/* Called with lock held */
static void
gst_splitmux_part_reader_measure_streams (GstSplitMuxPartReader * reader)
{
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
SPLITMUX_PART_LOCK (reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* Trigger a flushing seek to near the end of the file and run each stream
* to EOS in order to find the smallest end timestamp to start the next
* file from
*/
if (GST_CLOCK_TIME_IS_VALID (reader->duration)
&& reader->duration > GST_SECOND) {
GstClockTime seek_ts = reader->duration - (0.5 * GST_SECOND);
gst_splitmux_part_reader_seek_to_time_locked (reader, seek_ts);
}
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
SPLITMUX_PART_UNLOCK (reader);
}
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
static void
gst_splitmux_part_reader_finish_measuring_streams (GstSplitMuxPartReader *
reader)
{
SPLITMUX_PART_LOCK (reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
if (reader->prep_state == PART_STATE_PREPARING_RESET_FOR_READY) {
splitmux: Handle early EOS during part preparation Handle the case where a short file reaches EOS while we're still waiting for no-more-pads, and make sure we continue to the internal READY state for real playback to work properly later.
2015-02-05 19:42:17 +00:00
/* Fire the prepared signal and go to READY state */
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
GST_DEBUG_OBJECT (reader,
splitmuxsrc: Refactor part preparation code and remove "prepared" signal from reader helper object We don't need a special signal anymore but can directly work with async-done
2019-01-09 09:48:52 +00:00
"Stream measuring complete. File %s is now ready", reader->path);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
reader->prep_state = PART_STATE_READY;
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
SPLITMUX_PART_UNLOCK (reader);
do_async_done (reader);
} else {
SPLITMUX_PART_UNLOCK (reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
}
}
static GstElement *
find_demuxer (GstCaps * caps)
{
GList *factories =
gst_element_factory_list_get_elements (GST_ELEMENT_FACTORY_TYPE_DEMUXER,
GST_RANK_MARGINAL);
GList *compat_elements;
GstElement *e = NULL;
if (factories == NULL)
return NULL;
compat_elements =
gst_element_factory_list_filter (factories, caps, GST_PAD_SINK, TRUE);
if (compat_elements) {
/* Just take the first (highest ranked) option */
GstElementFactory *factory =
GST_ELEMENT_FACTORY_CAST (compat_elements->data);
e = gst_element_factory_create (factory, NULL);
gst_plugin_feature_list_free (compat_elements);
}
if (factories)
gst_plugin_feature_list_free (factories);
return e;
}
static void
type_found (GstElement * typefind, guint probability,
GstCaps * caps, GstSplitMuxPartReader * reader)
{
GstElement *demux;
splitmux: Add unit test for file splitting Add a unit test for file splitting, and fix the leaks in the splitmuxsink it found
2015-02-06 14:41:49 +00:00
GST_INFO_OBJECT (reader, "Got type %" GST_PTR_FORMAT, caps);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* typefind found a type. Look for the demuxer to handle it */
demux = reader->demux = find_demuxer (caps);
if (reader->demux == NULL) {
GST_ERROR_OBJECT (reader, "Failed to create demuxer element");
return;
}
/* Connect to demux signals */
g_signal_connect (demux,
"pad-added", G_CALLBACK (new_decoded_pad_added_cb), reader);
g_signal_connect (demux, "no-more-pads", G_CALLBACK (no_more_pads), reader);
splitmuxsrc: Connect to demux signals before activating Fix a race in splitmuxsrc by properly connecting to the demuxer signals we're interested in *before* setting it running.
2016-05-15 12:07:14 +00:00
gst_element_set_locked_state (demux, TRUE);
gst_bin_add (GST_BIN_CAST (reader), demux);
gst_element_link_pads (reader->typefind, "src", demux, NULL);
gst_element_set_state (reader->demux, GST_STATE_TARGET (reader));
gst_element_set_locked_state (demux, FALSE);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
}
static void
check_if_pads_collected (GstSplitMuxPartReader * reader)
{
if (reader->prep_state == PART_STATE_PREPARING_COLLECT_STREAMS) {
/* Check we have all pads and each pad has seen a buffer */
if (reader->no_more_pads && splitmux_part_is_prerolled_locked (reader)) {
GST_DEBUG_OBJECT (reader,
"no more pads - file %s. Measuring stream length", reader->path);
reader->prep_state = PART_STATE_PREPARING_MEASURE_STREAMS;
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
gst_element_call_async (GST_ELEMENT_CAST (reader),
(GstElementCallAsyncFunc) gst_splitmux_part_reader_measure_streams,
NULL, NULL);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
}
}
}
static void
no_more_pads (GstElement * element, GstSplitMuxPartReader * reader)
{
GstClockTime duration = GST_CLOCK_TIME_NONE;
GList *cur;
/* Query the minimum duration of any pad in this piece and store it.
* FIXME: Only consider audio and video */
SPLITMUX_PART_LOCK (reader);
for (cur = g_list_first (reader->pads); cur != NULL; cur = g_list_next (cur)) {
GstPad *target = GST_PAD_CAST (cur->data);
if (target) {
gint64 cur_duration;
if (gst_pad_peer_query_duration (target, GST_FORMAT_TIME, &cur_duration)) {
GST_INFO_OBJECT (reader,
"file %s pad %" GST_PTR_FORMAT " duration %" GST_TIME_FORMAT,
reader->path, target, GST_TIME_ARGS (cur_duration));
if (cur_duration < duration)
duration = cur_duration;
}
}
}
GST_INFO_OBJECT (reader, "file %s duration %" GST_TIME_FORMAT,
reader->path, GST_TIME_ARGS (duration));
reader->duration = (GstClockTime) duration;
reader->no_more_pads = TRUE;
check_if_pads_collected (reader);
SPLITMUX_PART_UNLOCK (reader);
}
gboolean
gst_splitmux_part_reader_src_query (GstSplitMuxPartReader * part,
GstPad * src_pad, GstQuery * query)
{
GstPad *target = NULL;
gboolean ret;
GList *cur;
SPLITMUX_PART_LOCK (part);
/* Find the pad corresponding to the visible output target pad */
for (cur = g_list_first (part->pads); cur != NULL; cur = g_list_next (cur)) {
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (cur->data);
if (part_pad->target == src_pad) {
target = gst_object_ref (GST_OBJECT_CAST (part_pad));
break;
}
}
SPLITMUX_PART_UNLOCK (part);
if (target == NULL)
return FALSE;
ret = gst_pad_peer_query (target, query);
if (ret == FALSE)
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
goto out;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* Post-massaging of queries */
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:{
GstFormat fmt;
gint64 position;
gst_query_parse_position (query, &fmt, &position);
if (fmt != GST_FORMAT_TIME)
return FALSE;
SPLITMUX_PART_LOCK (part);
position += part->start_offset;
GST_LOG_OBJECT (part, "Position %" GST_TIME_FORMAT,
GST_TIME_ARGS (position));
SPLITMUX_PART_UNLOCK (part);
gst_query_set_position (query, fmt, position);
break;
}
default:
break;
}
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
out:
gst_object_unref (target);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
return ret;
}
static GstStateChangeReturn
gst_splitmux_part_reader_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret;
GstSplitMuxPartReader *reader = (GstSplitMuxPartReader *) element;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:{
break;
}
case GST_STATE_CHANGE_READY_TO_PAUSED:{
SPLITMUX_PART_LOCK (reader);
splitmuxsrc: Fix startup and shutdown races. Fix 2 startup races when things happen too quickly, and 1 at shutdown by holding a ref to the pads in use until the loop functions exit. Handle errors activating file parts and publish them on the bus. https://bugzilla.gnome.org/show_bug.cgi?id=750747
2015-06-18 13:22:06 +00:00
g_object_set (reader->src, "location", reader->path, NULL);
splitmux: Fix a small race in the splitmuxsrc Make sure the state of the parser is set to collecting streams before chaining up to the parent change_state() method, to close a small window that can cause playback to never commence.
2016-11-25 14:13:19 +00:00
reader->prep_state = PART_STATE_PREPARING_COLLECT_STREAMS;
gst_splitmux_part_reader_set_flushing_locked (reader, FALSE);
reader->running = TRUE;
splitmuxsrc: Use a separate lock to delay typefind. Don't hold the main splitmux part lock over the parent state change function, as it prevents posting error messages that happen. Since the purpose is to prevent typefinding from proceeding, use a separate mutex just for that.
2015-06-24 15:35:27 +00:00
SPLITMUX_PART_UNLOCK (reader);
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
/* we go to PAUSED asynchronously once all streams have been collected
* and seeks to measure the stream lengths are done */
do_async_start (reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
break;
}
case GST_STATE_CHANGE_READY_TO_NULL:
case GST_STATE_CHANGE_PAUSED_TO_READY:
SPLITMUX_PART_LOCK (reader);
gst_splitmux_part_reader_set_flushing_locked (reader, TRUE);
reader->running = FALSE;
SPLITMUX_PART_BROADCAST (reader);
SPLITMUX_PART_UNLOCK (reader);
break;
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
SPLITMUX_PART_LOCK (reader);
reader->active = FALSE;
gst_splitmux_part_reader_set_flushing_locked (reader, TRUE);
SPLITMUX_PART_BROADCAST (reader);
SPLITMUX_PART_UNLOCK (reader);
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
splitmuxsrc: Fix startup and shutdown races. Fix 2 startup races when things happen too quickly, and 1 at shutdown by holding a ref to the pads in use until the loop functions exit. Handle errors activating file parts and publish them on the bus. https://bugzilla.gnome.org/show_bug.cgi?id=750747
2015-06-18 13:22:06 +00:00
if (ret == GST_STATE_CHANGE_FAILURE) {
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
do_async_done (reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
goto beach;
splitmuxsrc: Fix startup and shutdown races. Fix 2 startup races when things happen too quickly, and 1 at shutdown by holding a ref to the pads in use until the loop functions exit. Handle errors activating file parts and publish them on the bus. https://bugzilla.gnome.org/show_bug.cgi?id=750747
2015-06-18 13:22:06 +00:00
}
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
ret = GST_STATE_CHANGE_ASYNC;
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
do_async_done (reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
SPLITMUX_PART_LOCK (reader);
gst_splitmux_part_reader_set_flushing_locked (reader, FALSE);
reader->active = TRUE;
SPLITMUX_PART_BROADCAST (reader);
SPLITMUX_PART_UNLOCK (reader);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
reader->prep_state = PART_STATE_NULL;
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
splitmux_part_reader_reset (reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
break;
default:
break;
}
beach:
return ret;
}
gboolean
gst_splitmux_part_reader_prepare (GstSplitMuxPartReader * part)
{
GstStateChangeReturn ret;
ret = gst_element_set_state (GST_ELEMENT_CAST (part), GST_STATE_PAUSED);
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
if (ret == GST_STATE_CHANGE_FAILURE)
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
return FALSE;
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
return TRUE;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
}
void
gst_splitmux_part_reader_unprepare (GstSplitMuxPartReader * part)
{
gst_element_set_state (GST_ELEMENT_CAST (part), GST_STATE_NULL);
}
void
gst_splitmux_part_reader_set_location (GstSplitMuxPartReader * reader,
const gchar * path)
{
reader->path = g_strdup (path);
}
gboolean
gst_splitmux_part_reader_activate (GstSplitMuxPartReader * reader,
splitmuxsrc: Pass seek flags when activating. Pass all seek flags when activating a part based on a seek, so that SNAP flags are preserved.
2016-12-28 11:49:27 +00:00
GstSegment * seg, GstSeekFlags extra_flags)
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
{
GST_DEBUG_OBJECT (reader, "Activating part reader");
splitmuxsrc: Pass seek flags when activating. Pass all seek flags when activating a part based on a seek, so that SNAP flags are preserved.
2016-12-28 11:49:27 +00:00
if (!gst_splitmux_part_reader_seek_to_segment (reader, seg, extra_flags)) {
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
GST_ERROR_OBJECT (reader, "Failed to seek part to %" GST_SEGMENT_FORMAT,
seg);
return FALSE;
}
if (gst_element_set_state (GST_ELEMENT_CAST (reader),
GST_STATE_PLAYING) == GST_STATE_CHANGE_FAILURE) {
GST_ERROR_OBJECT (reader, "Failed to set state to PLAYING");
return FALSE;
}
return TRUE;
}
splitmuxsrc: Avoid stall when parts get out of sync When one part moves ahead of the others - due to excessive downstream queueing, or really small input files - then we can end up activating parts more than once. That can lead to effects like shutting down pad tasks prematurely. https://bugzilla.gnome.org/show_bug.cgi?id=772138
2016-09-28 18:50:25 +00:00
gboolean
gst_splitmux_part_reader_is_active (GstSplitMuxPartReader * part)
{
gboolean ret;
SPLITMUX_PART_LOCK (part);
ret = part->active;
SPLITMUX_PART_UNLOCK (part);
return ret;
}
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
void
gst_splitmux_part_reader_deactivate (GstSplitMuxPartReader * reader)
{
GST_DEBUG_OBJECT (reader, "Deactivating reader");
gst_element_set_state (GST_ELEMENT_CAST (reader), GST_STATE_PAUSED);
}
void
gst_splitmux_part_reader_set_flushing_locked (GstSplitMuxPartReader * reader,
gboolean flushing)
{
GList *cur;
GST_LOG_OBJECT (reader, "%s dataqueues",
flushing ? "Flushing" : "Done flushing");
for (cur = g_list_first (reader->pads); cur != NULL; cur = g_list_next (cur)) {
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (cur->data);
gst_data_queue_set_flushing (part_pad->queue, flushing);
if (flushing)
gst_data_queue_flush (part_pad->queue);
}
};
void
gst_splitmux_part_reader_set_callbacks (GstSplitMuxPartReader * reader,
gpointer cb_data, GstSplitMuxPartReaderPadCb get_pad_cb)
{
reader->cb_data = cb_data;
reader->get_pad_cb = get_pad_cb;
}
GstClockTime
gst_splitmux_part_reader_get_end_offset (GstSplitMuxPartReader * reader)
{
GList *cur;
GstClockTime ret = GST_CLOCK_TIME_NONE;
SPLITMUX_PART_LOCK (reader);
for (cur = g_list_first (reader->pads); cur != NULL; cur = g_list_next (cur)) {
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (cur->data);
splitmuxpartreader: ignore sparse streams when calculating the end offset of a part A sparse stream's ending timestamp can be considerably smaller than the ending timestamps of the other streams, which can lead to skipping considerable time from the next part. https://bugzilla.gnome.org/show_bug.cgi?id=761086
2017-02-22 09:23:19 +00:00
if (!part_pad->is_sparse && part_pad->max_ts < ret)
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
ret = part_pad->max_ts;
}
SPLITMUX_PART_UNLOCK (reader);
return ret;
}
void
gst_splitmux_part_reader_set_start_offset (GstSplitMuxPartReader * reader,
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
GstClockTime time_offset, GstClockTime ts_offset)
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
{
SPLITMUX_PART_LOCK (reader);
splitmux: Avoid negative DTS In order to concatenate fragments, splitmuxsrc offsets the start of each fragment PTS to 0 to align it with the previous file. This means that DTS can go negative for the first fragment, with really bad results. Add a fixed offset to outgoing timestamp ranges to avoid that.
2020-02-20 15:14:11 +00:00
reader->start_offset = time_offset;
reader->ts_offset = ts_offset;
GST_INFO_OBJECT (reader, "Time offset now %" GST_TIME_FORMAT,
GST_TIME_ARGS (time_offset));
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
SPLITMUX_PART_UNLOCK (reader);
}
GstClockTime
gst_splitmux_part_reader_get_start_offset (GstSplitMuxPartReader * reader)
{
GstClockTime ret = GST_CLOCK_TIME_NONE;
SPLITMUX_PART_LOCK (reader);
ret = reader->start_offset;
SPLITMUX_PART_UNLOCK (reader);
return ret;
}
GstClockTime
gst_splitmux_part_reader_get_duration (GstSplitMuxPartReader * reader)
{
GstClockTime dur;
SPLITMUX_PART_LOCK (reader);
dur = reader->duration;
SPLITMUX_PART_UNLOCK (reader);
return dur;
}
GstPad *
gst_splitmux_part_reader_lookup_pad (GstSplitMuxPartReader * reader,
GstPad * target)
{
GstPad *result = NULL;
GList *cur;
SPLITMUX_PART_LOCK (reader);
for (cur = g_list_first (reader->pads); cur != NULL; cur = g_list_next (cur)) {
GstSplitMuxPartPad *part_pad = SPLITMUX_PART_PAD_CAST (cur->data);
if (part_pad->target == target) {
splitmuxsrc: Fix startup and shutdown races. Fix 2 startup races when things happen too quickly, and 1 at shutdown by holding a ref to the pads in use until the loop functions exit. Handle errors activating file parts and publish them on the bus. https://bugzilla.gnome.org/show_bug.cgi?id=750747
2015-06-18 13:22:06 +00:00
result = (GstPad *) gst_object_ref (part_pad);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
break;
}
}
SPLITMUX_PART_UNLOCK (reader);
return result;
}
GstFlowReturn
gst_splitmux_part_reader_pop (GstSplitMuxPartReader * reader, GstPad * pad,
GstDataQueueItem ** item)
{
GstSplitMuxPartPad *part_pad = (GstSplitMuxPartPad *) (pad);
GstDataQueue *q;
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
GstFlowReturn ret;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
/* Get one item from the appropriate dataqueue */
SPLITMUX_PART_LOCK (reader);
if (reader->prep_state == PART_STATE_FAILED) {
SPLITMUX_PART_UNLOCK (reader);
return GST_FLOW_ERROR;
}
q = gst_object_ref (part_pad->queue);
/* Have to drop the lock around pop, so we can be woken up for flush */
SPLITMUX_PART_UNLOCK (reader);
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
if (!gst_data_queue_pop (q, item) || (*item == NULL)) {
ret = GST_FLOW_FLUSHING;
goto out;
}
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
SPLITMUX_PART_LOCK (reader);
SPLITMUX_PART_BROADCAST (reader);
if (GST_IS_EVENT ((*item)->object)) {
GstEvent *e = (GstEvent *) ((*item)->object);
/* Mark this pad as EOS */
if (GST_EVENT_TYPE (e) == GST_EVENT_EOS)
part_pad->is_eos = TRUE;
}
SPLITMUX_PART_UNLOCK (reader);
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
ret = GST_FLOW_OK;
out:
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
gst_object_unref (q);
splitmux: Fix memory leaks until the test valgrinds clean
2015-02-06 13:19:36 +00:00
return ret;
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
}
static void
bus_handler (GstBin * bin, GstMessage * message)
{
GstSplitMuxPartReader *reader = (GstSplitMuxPartReader *) bin;
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_ERROR:
/* Make sure to set the state to failed and wake up the listener
* on error */
SPLITMUX_PART_LOCK (reader);
splitmuxsrc: Don't return FALSE from event handling. Returning FALSE because we drop an event means that internal sources like qtdemux might throw an error and break the whole pipeline. The only time it can happen is either flushing or shutdown, and those will be handled anyway.
2017-11-17 15:01:58 +00:00
GST_ERROR_OBJECT (reader, "Got error message from child %" GST_PTR_FORMAT
" marking this reader as failed", GST_MESSAGE_SRC (message));
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
reader->prep_state = PART_STATE_FAILED;
SPLITMUX_PART_BROADCAST (reader);
SPLITMUX_PART_UNLOCK (reader);
splitmuxsrc: Implement state change asynchronously instead of blocking Blocking in change_state() is a recipe for disaster, even more so if we wait for another thread that also calls into various element API and could then lead to deadlocks on e.g. the state lock.
2019-01-09 09:42:36 +00:00
do_async_done (reader);
splitmux: Implement new elements for splitting files at mux level. Implement 2 new elements - splitmuxsink and splitmuxsrc. splitmuxsink is a bin which wraps a muxer and takes 1 video stream, plus audio/subtitle streams, and starts a new file whenever necessary to avoid overrunning a threshold of either bytes or time. New files are started at a keyframe, and corresponding audio and subtitle streams are split at packet boundaries to match video GOP timestamps. splitmuxsrc is a corresponding source element which handles the splitmux:// URL and plays back all component files, reconstructing the original elementary streams as it goes.
2014-07-31 14:07:53 +00:00
break;
default:
break;
}
GST_BIN_CLASS (parent_class)->handle_message (bin, message);
}
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