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Code Issues 1 Projects Releases Wiki Activity

dashdemux: Remove timing code that delays pushing of fragments

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Fragments should be pushed ASAP as downstream should be responsible for
doing the syncrhonization and proper buffering.

This has the great side effect of fixing most of the seeking A/V sync issues.
This commit is contained in:
Thiago Santos 2013-01-25 12:45:18 -03:00
parent a1447a8ede
commit f27bb684f7
2 changed files with 8 additions and 35 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
ext/dash/gstdashdemux.c
View file

@ -9,6 +9,9 @@
* David Corvoysier <david.corvoysier@orange.com>
* Hamid Zakari <hamid.zakari@gmail.com>
*
* Copyright (C) 2013 Smart TV Alliance
* Author: Thiago Sousa Santos <thiago.sousa.santos@collabora.com>, Collabora Ltd.
*
* 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
@ -979,12 +982,6 @@ gst_dash_demux_stream_loop (GstDashDemux * demux)
gboolean switch_pad;
guint i = 0;
/* Wait until the next scheduled push downstream */
if (g_cond_timed_wait (GST_TASK_GET_COND (demux->stream_task),
demux->stream_timed_lock, &demux->next_push)) {
goto quit;
}
if (g_queue_is_empty (demux->queue)) {
if (demux->end_of_manifest)
goto end_of_manifest;
@ -1007,6 +1004,7 @@ gst_dash_demux_stream_loop (GstDashDemux * demux)
}
listfragment = g_queue_pop_head (demux->queue);
nb_adaptation_set = g_list_length (listfragment);
/* Figure out if we need to create/switch pads */
switch_pad = needs_pad_switch (demux, listfragment);
if (switch_pad) {
@ -1036,27 +1034,10 @@ gst_dash_demux_stream_loop (GstDashDemux * demux)
goto error_pushing;
}
demux->need_segment = FALSE;
demux->last_position_shift = demux->position_shift;
demux->position_shift = 0;
g_list_free (listfragment);
if (GST_STATE (demux) == GST_STATE_PLAYING) {
/* Wait for the duration of a fragment before resuming this task */
g_get_current_time (&demux->next_push);
g_time_val_add (&demux->next_push,
(gst_mpd_client_get_next_fragment_duration (demux->client) -
demux->last_position_shift) / GST_SECOND * G_USEC_PER_SEC);
GST_DEBUG_OBJECT (demux, "Next push scheduled at %s",
g_time_val_to_iso8601 (&demux->next_push));
demux->last_position_shift = 0;
} else {
/* The pipeline is now set up, wait until playback begins */
goto pause_streaming;
}
quit:
{
return;
}
return;
end_of_manifest:
{
@ -1078,13 +1059,6 @@ error_pushing:
gst_dash_demux_stop (demux);
return;
}
pause_streaming:
{
GST_INFO_OBJECT (demux, "Pausing streaming task");
gst_task_pause (demux->stream_task);
return;
}
}
static void
@ -1403,7 +1377,6 @@ gst_dash_demux_pause_stream_task (GstDashDemux * demux)
static void
gst_dash_demux_resume_stream_task (GstDashDemux * demux)
{
g_get_current_time (&demux->next_push);
gst_task_start (demux->stream_task);
}
@ -1762,4 +1735,3 @@ gst_dash_demux_get_next_fragment_set (GstDashDemux * demux)
demux->dnl_rate / 1000, size_buffer / 1024, ((double) diff / GST_SECOND));
return TRUE;
}

5
ext/dash/gstdashdemux.h
View file

@ -4,11 +4,13 @@
* gstdashdemux.h
*
* Copyright (C) 2012 Orange
*
* Authors:
* David Corvoysier <david.corvoysier@orange.com>
* Hamid Zakari <hamid.zakari@gmail.com>
*
* Copyright (C) 2013 Smart TV Alliance
* Author: Thiago Sousa Santos <thiago.sousa.santos@collabora.com>, Collabora Ltd.
*
* 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
@ -81,7 +83,6 @@ struct _GstDashDemux
GstTask *stream_task;
GStaticRecMutex stream_lock;
GMutex *stream_timed_lock;
GTimeVal next_push; /* Time of the next push */
/* Download task */
GstTask *download_task;