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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Instead of using a static hardcoded PCR interval, allow the user to configure it. Also revert back the default to a 40 ms interval, that was changed in recent patches for no good reason.
1901 lines
55 KiB
C
1901 lines
55 KiB
C
/*
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* Copyright 2006, 2007, 2008, 2009, 2010 Fluendo S.A.
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* Authors: Jan Schmidt <jan@fluendo.com>
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* Kapil Agrawal <kapil@fluendo.com>
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* Julien Moutte <julien@fluendo.com>
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*
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* Copyright (C) 2011 Jan Schmidt <thaytan@noraisin.net>
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*
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* This library is licensed under 4 different licenses and you
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* can choose to use it under the terms of any one of them. The
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* four licenses are the MPL 1.1, the LGPL, the GPL and the MIT
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* license.
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*
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* MPL:
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/.
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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* License for the specific language governing rights and limitations
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* under the License.
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*
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* LGPL:
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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* GPL:
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* MIT:
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*
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* Unless otherwise indicated, Source Code is licensed under MIT license.
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* See further explanation attached in License Statement (distributed in the file
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* LICENSE).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#include <stdio.h>
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#include <string.h>
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#include <gst/tag/tag.h>
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#include <gst/video/video.h>
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#include <gst/mpegts/mpegts.h>
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#include <gst/pbutils/pbutils.h>
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#include <gst/videoparsers/gstjpeg2000parse.h>
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#include <gst/video/video-color.h>
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#include "gstbasetsmux.h"
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#include "gstbasetsmuxaac.h"
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#include "gstbasetsmuxttxt.h"
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#include "gstbasetsmuxopus.h"
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#include "gstbasetsmuxjpeg2000.h"
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GST_DEBUG_CATEGORY (gst_base_ts_mux_debug);
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#define GST_CAT_DEFAULT gst_base_ts_mux_debug
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/* GstBaseTsMuxPad */
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G_DEFINE_TYPE (GstBaseTsMuxPad, gst_base_ts_mux_pad, GST_TYPE_AGGREGATOR_PAD);
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/* Internals */
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static void
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gst_base_ts_mux_pad_reset (GstBaseTsMuxPad * pad)
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{
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pad->dts = GST_CLOCK_STIME_NONE;
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pad->prog_id = -1;
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if (pad->free_func)
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pad->free_func (pad->prepare_data);
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pad->prepare_data = NULL;
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pad->prepare_func = NULL;
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pad->free_func = NULL;
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if (pad->codec_data)
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gst_buffer_replace (&pad->codec_data, NULL);
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/* reference owned elsewhere */
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pad->stream = NULL;
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pad->prog = NULL;
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if (pad->language) {
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g_free (pad->language);
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pad->language = NULL;
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}
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}
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/* GstAggregatorPad implementation */
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static GstFlowReturn
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gst_base_ts_mux_pad_flush (GstAggregatorPad * agg_pad, GstAggregator * agg)
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{
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GList *cur;
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GstBaseTsMux *mux = GST_BASE_TS_MUX (agg);
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/* Send initial segments again after a flush-stop, and also resend the
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* header sections */
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mux->first = TRUE;
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/* output PAT, SI tables */
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tsmux_resend_pat (mux->tsmux);
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tsmux_resend_si (mux->tsmux);
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/* output PMT for each program */
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for (cur = mux->tsmux->programs; cur; cur = cur->next) {
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TsMuxProgram *program = (TsMuxProgram *) cur->data;
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tsmux_resend_pmt (program);
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}
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return GST_FLOW_OK;
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}
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/* GObject implementation */
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static void
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gst_base_ts_mux_pad_dispose (GObject * obj)
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{
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GstBaseTsMuxPad *ts_pad = GST_BASE_TS_MUX_PAD (obj);
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gst_base_ts_mux_pad_reset (ts_pad);
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}
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static void
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gst_base_ts_mux_pad_class_init (GstBaseTsMuxPadClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstAggregatorPadClass *gstaggpad_class = GST_AGGREGATOR_PAD_CLASS (klass);
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gobject_class->dispose = gst_base_ts_mux_pad_dispose;
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gstaggpad_class->flush = gst_base_ts_mux_pad_flush;
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}
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static void
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gst_base_ts_mux_pad_init (GstBaseTsMuxPad * vaggpad)
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{
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}
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/* GstBaseTsMux */
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enum
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{
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PROP_0,
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PROP_PROG_MAP,
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PROP_PAT_INTERVAL,
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PROP_PMT_INTERVAL,
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PROP_ALIGNMENT,
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PROP_SI_INTERVAL,
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PROP_BITRATE,
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PROP_PCR_INTERVAL,
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};
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#define BASETSMUX_DEFAULT_ALIGNMENT -1
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#define CLOCK_BASE 9LL
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#define CLOCK_FREQ (CLOCK_BASE * 10000) /* 90 kHz PTS clock */
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#define CLOCK_FREQ_SCR (CLOCK_FREQ * 300) /* 27 MHz SCR clock */
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#define GSTTIME_TO_MPEGTIME(time) \
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(((time) > 0 ? (gint64) 1 : (gint64) -1) * \
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(gint64) gst_util_uint64_scale (ABS(time), CLOCK_BASE, GST_MSECOND/10))
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/* 27 MHz SCR conversions: */
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#define MPEG_SYS_TIME_TO_GSTTIME(time) (gst_util_uint64_scale ((time), \
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GST_USECOND, CLOCK_FREQ_SCR / 1000000))
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#define GSTTIME_TO_MPEG_SYS_TIME(time) (gst_util_uint64_scale ((time), \
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CLOCK_FREQ_SCR / 1000000, GST_USECOND))
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#define DEFAULT_PROG_ID 0
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static GstStaticPadTemplate gst_base_ts_mux_src_factory =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/mpegts, "
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"systemstream = (boolean) true, " "packetsize = (int) { 188, 192} ")
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);
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typedef struct
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{
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GstMapInfo map_info;
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GstBuffer *buffer;
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} StreamData;
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G_DEFINE_TYPE (GstBaseTsMux, gst_base_ts_mux, GST_TYPE_AGGREGATOR);
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/* Internals */
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/* Takes over the ref on the buffer */
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static StreamData *
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stream_data_new (GstBuffer * buffer)
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{
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StreamData *res = g_new (StreamData, 1);
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res->buffer = buffer;
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gst_buffer_map (buffer, &(res->map_info), GST_MAP_READ);
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return res;
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}
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static void
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stream_data_free (StreamData * data)
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{
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if (data) {
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gst_buffer_unmap (data->buffer, &data->map_info);
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gst_buffer_unref (data->buffer);
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g_free (data);
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}
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}
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#define parent_class gst_base_ts_mux_parent_class
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static void
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gst_base_ts_mux_set_header_on_caps (GstBaseTsMux * mux)
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{
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GstBuffer *buf;
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GstStructure *structure;
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GValue array = { 0 };
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GValue value = { 0 };
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GstCaps *caps;
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caps =
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gst_caps_make_writable (gst_pad_get_current_caps (GST_AGGREGATOR_SRC_PAD
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(mux)));
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structure = gst_caps_get_structure (caps, 0);
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g_value_init (&array, GST_TYPE_ARRAY);
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GST_LOG_OBJECT (mux, "setting %u packets into streamheader",
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g_queue_get_length (&mux->streamheader));
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while ((buf = GST_BUFFER (g_queue_pop_head (&mux->streamheader)))) {
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g_value_init (&value, GST_TYPE_BUFFER);
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gst_value_take_buffer (&value, buf);
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gst_value_array_append_value (&array, &value);
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g_value_unset (&value);
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}
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gst_structure_set_value (structure, "streamheader", &array);
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gst_aggregator_set_src_caps (GST_AGGREGATOR (mux), caps);
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g_value_unset (&array);
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gst_caps_unref (caps);
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}
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static gboolean
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steal_si_section (GstMpegtsSectionType * type, TsMuxSection * section,
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TsMux * mux)
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{
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g_hash_table_insert (mux->si_sections, type, section);
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return TRUE;
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}
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static void
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gst_base_ts_mux_reset (GstBaseTsMux * mux, gboolean alloc)
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{
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GstBuffer *buf;
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GstBaseTsMuxClass *klass = GST_BASE_TS_MUX_GET_CLASS (mux);
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GHashTable *si_sections = NULL;
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GList *l;
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mux->first = TRUE;
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mux->last_flow_ret = GST_FLOW_OK;
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mux->last_ts = 0;
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mux->is_delta = TRUE;
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mux->is_header = FALSE;
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mux->streamheader_sent = FALSE;
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mux->pending_key_unit_ts = GST_CLOCK_TIME_NONE;
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gst_event_replace (&mux->force_key_unit_event, NULL);
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if (mux->out_adapter)
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gst_adapter_clear (mux->out_adapter);
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if (mux->tsmux) {
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if (mux->tsmux->si_sections)
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si_sections = g_hash_table_ref (mux->tsmux->si_sections);
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tsmux_free (mux->tsmux);
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mux->tsmux = NULL;
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}
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if (mux->programs) {
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g_hash_table_destroy (mux->programs);
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}
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mux->programs = g_hash_table_new (g_direct_hash, g_direct_equal);
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while ((buf = GST_BUFFER (g_queue_pop_head (&mux->streamheader))))
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gst_buffer_unref (buf);
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gst_event_replace (&mux->force_key_unit_event, NULL);
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gst_buffer_replace (&mux->out_buffer, NULL);
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for (l = GST_ELEMENT (mux)->sinkpads; l; l = l->next) {
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gst_base_ts_mux_pad_reset (GST_BASE_TS_MUX_PAD (l->data));
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}
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if (alloc) {
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g_assert (klass->create_ts_mux);
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mux->tsmux = klass->create_ts_mux (mux);
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/* Preserve user-specified sections across resets */
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if (si_sections)
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g_hash_table_foreach_steal (si_sections, (GHRFunc) steal_si_section,
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mux->tsmux);
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}
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if (si_sections)
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g_hash_table_unref (si_sections);
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if (klass->reset)
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klass->reset (mux);
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}
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static void
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release_buffer_cb (guint8 * data, void *user_data)
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{
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stream_data_free ((StreamData *) user_data);
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}
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static GstFlowReturn
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gst_base_ts_mux_create_stream (GstBaseTsMux * mux, GstBaseTsMuxPad * ts_pad)
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{
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GstFlowReturn ret = GST_FLOW_ERROR;
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GstCaps *caps;
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GstStructure *s;
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GstPad *pad;
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guint st = TSMUX_ST_RESERVED;
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const gchar *mt;
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const GValue *value = NULL;
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GstBuffer *codec_data = NULL;
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guint8 opus_channel_config_code = 0;
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guint16 profile = 0;
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guint8 main_level = 0;
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guint32 max_rate = 0;
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guint8 color_spec = 0;
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j2k_private_data *private_data = NULL;
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pad = GST_PAD (ts_pad);
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caps = gst_pad_get_current_caps (pad);
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if (caps == NULL)
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goto not_negotiated;
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GST_DEBUG_OBJECT (pad, "Creating stream with PID 0x%04x for caps %"
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GST_PTR_FORMAT, ts_pad->pid, caps);
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s = gst_caps_get_structure (caps, 0);
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mt = gst_structure_get_name (s);
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value = gst_structure_get_value (s, "codec_data");
|
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if (value != NULL)
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codec_data = gst_value_get_buffer (value);
|
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|
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if (strcmp (mt, "video/x-dirac") == 0) {
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st = TSMUX_ST_VIDEO_DIRAC;
|
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} else if (strcmp (mt, "audio/x-ac3") == 0) {
|
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st = TSMUX_ST_PS_AUDIO_AC3;
|
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} else if (strcmp (mt, "audio/x-dts") == 0) {
|
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st = TSMUX_ST_PS_AUDIO_DTS;
|
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} else if (strcmp (mt, "audio/x-lpcm") == 0) {
|
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st = TSMUX_ST_PS_AUDIO_LPCM;
|
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} else if (strcmp (mt, "video/x-h264") == 0) {
|
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st = TSMUX_ST_VIDEO_H264;
|
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} else if (strcmp (mt, "video/x-h265") == 0) {
|
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st = TSMUX_ST_VIDEO_HEVC;
|
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} else if (strcmp (mt, "audio/mpeg") == 0) {
|
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gint mpegversion;
|
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|
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if (!gst_structure_get_int (s, "mpegversion", &mpegversion)) {
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GST_ERROR_OBJECT (pad, "caps missing mpegversion");
|
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goto not_negotiated;
|
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}
|
|
|
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switch (mpegversion) {
|
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case 1:
|
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st = TSMUX_ST_AUDIO_MPEG1;
|
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break;
|
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case 2:
|
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st = TSMUX_ST_AUDIO_MPEG2;
|
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break;
|
|
case 4:
|
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{
|
|
st = TSMUX_ST_AUDIO_AAC;
|
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if (codec_data) { /* TODO - Check stream format - codec data should only come with RAW stream */
|
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GST_DEBUG_OBJECT (pad,
|
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"we have additional codec data (%" G_GSIZE_FORMAT " bytes)",
|
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gst_buffer_get_size (codec_data));
|
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ts_pad->codec_data = gst_buffer_ref (codec_data);
|
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ts_pad->prepare_func = gst_base_ts_mux_prepare_aac;
|
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} else {
|
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ts_pad->codec_data = NULL;
|
|
}
|
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break;
|
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}
|
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default:
|
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GST_WARNING_OBJECT (pad, "unsupported mpegversion %d", mpegversion);
|
|
goto not_negotiated;
|
|
}
|
|
} else if (strcmp (mt, "video/mpeg") == 0) {
|
|
gint mpegversion;
|
|
|
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if (!gst_structure_get_int (s, "mpegversion", &mpegversion)) {
|
|
GST_ERROR_OBJECT (pad, "caps missing mpegversion");
|
|
goto not_negotiated;
|
|
}
|
|
|
|
switch (mpegversion) {
|
|
case 1:
|
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st = TSMUX_ST_VIDEO_MPEG1;
|
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break;
|
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case 2:
|
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st = TSMUX_ST_VIDEO_MPEG2;
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break;
|
|
case 4:
|
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st = TSMUX_ST_VIDEO_MPEG4;
|
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break;
|
|
default:
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GST_WARNING_OBJECT (pad, "unsupported mpegversion %d", mpegversion);
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goto not_negotiated;
|
|
}
|
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} else if (strcmp (mt, "subpicture/x-dvb") == 0) {
|
|
st = TSMUX_ST_PS_DVB_SUBPICTURE;
|
|
} else if (strcmp (mt, "application/x-teletext") == 0) {
|
|
st = TSMUX_ST_PS_TELETEXT;
|
|
/* needs a particularly sized layout */
|
|
ts_pad->prepare_func = gst_base_ts_mux_prepare_teletext;
|
|
} else if (strcmp (mt, "audio/x-opus") == 0) {
|
|
guint8 channels, mapping_family, stream_count, coupled_count;
|
|
guint8 channel_mapping[256];
|
|
|
|
if (!gst_codec_utils_opus_parse_caps (caps, NULL, &channels,
|
|
&mapping_family, &stream_count, &coupled_count, channel_mapping)) {
|
|
GST_ERROR_OBJECT (pad, "Incomplete Opus caps");
|
|
goto not_negotiated;
|
|
}
|
|
|
|
if (channels <= 2 && mapping_family == 0) {
|
|
opus_channel_config_code = channels;
|
|
} else if (channels == 2 && mapping_family == 255 && stream_count == 1
|
|
&& coupled_count == 1) {
|
|
/* Dual mono */
|
|
opus_channel_config_code = 0;
|
|
} else if (channels >= 2 && channels <= 8 && mapping_family == 1) {
|
|
static const guint8 coupled_stream_counts[9] = {
|
|
1, 0, 1, 1, 2, 2, 2, 3, 3
|
|
};
|
|
static const guint8 channel_map_a[8][8] = {
|
|
{0},
|
|
{0, 1},
|
|
{0, 2, 1},
|
|
{0, 1, 2, 3},
|
|
{0, 4, 1, 2, 3},
|
|
{0, 4, 1, 2, 3, 5},
|
|
{0, 4, 1, 2, 3, 5, 6},
|
|
{0, 6, 1, 2, 3, 4, 5, 7},
|
|
};
|
|
static const guint8 channel_map_b[8][8] = {
|
|
{0},
|
|
{0, 1},
|
|
{0, 1, 2},
|
|
{0, 1, 2, 3},
|
|
{0, 1, 2, 3, 4},
|
|
{0, 1, 2, 3, 4, 5},
|
|
{0, 1, 2, 3, 4, 5, 6},
|
|
{0, 1, 2, 3, 4, 5, 6, 7},
|
|
};
|
|
|
|
/* Vorbis mapping */
|
|
if (stream_count == channels - coupled_stream_counts[channels] &&
|
|
coupled_count == coupled_stream_counts[channels] &&
|
|
memcmp (channel_mapping, channel_map_a[channels - 1],
|
|
channels) == 0) {
|
|
opus_channel_config_code = channels;
|
|
} else if (stream_count == channels - coupled_stream_counts[channels] &&
|
|
coupled_count == coupled_stream_counts[channels] &&
|
|
memcmp (channel_mapping, channel_map_b[channels - 1],
|
|
channels) == 0) {
|
|
opus_channel_config_code = channels | 0x80;
|
|
} else {
|
|
GST_FIXME_OBJECT (pad, "Opus channel mapping not handled");
|
|
goto not_negotiated;
|
|
}
|
|
}
|
|
|
|
st = TSMUX_ST_PS_OPUS;
|
|
ts_pad->prepare_func = gst_base_ts_mux_prepare_opus;
|
|
} else if (strcmp (mt, "meta/x-klv") == 0) {
|
|
st = TSMUX_ST_PS_KLV;
|
|
} else if (strcmp (mt, "image/x-jpc") == 0) {
|
|
/*
|
|
* See this document for more details on standard:
|
|
*
|
|
* https://www.itu.int/rec/T-REC-H.222.0-201206-S/en
|
|
* Annex S describes J2K details
|
|
* Page 104 of this document describes J2k video descriptor
|
|
*/
|
|
|
|
const GValue *vProfile = gst_structure_get_value (s, "profile");
|
|
const GValue *vMainlevel = gst_structure_get_value (s, "main-level");
|
|
const GValue *vFramerate = gst_structure_get_value (s, "framerate");
|
|
const GValue *vColorimetry = gst_structure_get_value (s, "colorimetry");
|
|
private_data = g_new0 (j2k_private_data, 1);
|
|
profile = g_value_get_uint (vProfile);
|
|
if (profile != GST_JPEG2000_PARSE_PROFILE_BC_SINGLE) {
|
|
/* for now, we will relax the condition that the profile must equal GST_JPEG2000_PARSE_PROFILE_BC_SINGLE */
|
|
/*GST_ERROR_OBJECT (pad, "Invalid JPEG 2000 profile %d", profile);
|
|
goto not_negotiated; */
|
|
}
|
|
/* for now, we will relax the condition that the main level must be present */
|
|
if (vMainlevel) {
|
|
main_level = g_value_get_uint (vMainlevel);
|
|
if (main_level > 11) {
|
|
GST_ERROR_OBJECT (pad, "Invalid main level %d", main_level);
|
|
goto not_negotiated;
|
|
}
|
|
if (main_level >= 6) {
|
|
max_rate = 2 ^ (main_level - 6) * 1600 * 1000000;
|
|
} else {
|
|
switch (main_level) {
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
case 3:
|
|
max_rate = 200 * 1000000;
|
|
break;
|
|
case 4:
|
|
max_rate = 400 * 1000000;
|
|
break;
|
|
case 5:
|
|
max_rate = 800 * 1000000;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
/*GST_ERROR_OBJECT (pad, "Missing main level");
|
|
goto not_negotiated; */
|
|
}
|
|
/* We always mux video in J2K-over-MPEG-TS non-interlaced mode */
|
|
private_data->interlace = FALSE;
|
|
private_data->den = 0;
|
|
private_data->num = 0;
|
|
private_data->max_bitrate = max_rate;
|
|
private_data->color_spec = 1;
|
|
/* these two fields are not used, since we always mux as non-interlaced */
|
|
private_data->Fic = 1;
|
|
private_data->Fio = 0;
|
|
|
|
/* Get Framerate */
|
|
if (vFramerate != NULL) {
|
|
/* Data for ELSM header */
|
|
private_data->num = gst_value_get_fraction_numerator (vFramerate);
|
|
private_data->den = gst_value_get_fraction_denominator (vFramerate);
|
|
}
|
|
/* Get Colorimetry */
|
|
if (vColorimetry) {
|
|
const char *colorimetry = g_value_get_string (vColorimetry);
|
|
color_spec = GST_MPEGTS_JPEG2000_COLORSPEC_SRGB; /* RGB as default */
|
|
if (g_str_equal (colorimetry, GST_VIDEO_COLORIMETRY_BT601)) {
|
|
color_spec = GST_MPEGTS_JPEG2000_COLORSPEC_REC601;
|
|
} else {
|
|
if (g_str_equal (colorimetry, GST_VIDEO_COLORIMETRY_BT709)
|
|
|| g_str_equal (colorimetry, GST_VIDEO_COLORIMETRY_SMPTE240M)) {
|
|
color_spec = GST_MPEGTS_JPEG2000_COLORSPEC_REC709;
|
|
}
|
|
}
|
|
private_data->color_spec = color_spec;
|
|
} else {
|
|
GST_ERROR_OBJECT (pad, "Colorimetry not present in caps");
|
|
goto not_negotiated;
|
|
}
|
|
st = TSMUX_ST_VIDEO_JP2K;
|
|
ts_pad->prepare_func = gst_base_ts_mux_prepare_jpeg2000;
|
|
ts_pad->prepare_data = private_data;
|
|
ts_pad->free_func = gst_base_ts_mux_free_jpeg2000;
|
|
} else {
|
|
GstBaseTsMuxClass *klass = GST_BASE_TS_MUX_GET_CLASS (mux);
|
|
|
|
if (klass->handle_media_type) {
|
|
st = klass->handle_media_type (mux, mt, ts_pad);
|
|
}
|
|
}
|
|
|
|
|
|
if (st != TSMUX_ST_RESERVED) {
|
|
ts_pad->stream = tsmux_create_stream (mux->tsmux, st, ts_pad->pid,
|
|
ts_pad->language);
|
|
} else {
|
|
GST_DEBUG_OBJECT (pad, "Failed to determine stream type");
|
|
}
|
|
|
|
if (ts_pad->stream != NULL) {
|
|
const char *interlace_mode = gst_structure_get_string (s, "interlace-mode");
|
|
gst_structure_get_int (s, "rate", &ts_pad->stream->audio_sampling);
|
|
gst_structure_get_int (s, "channels", &ts_pad->stream->audio_channels);
|
|
gst_structure_get_int (s, "bitrate", &ts_pad->stream->audio_bitrate);
|
|
|
|
/* frame rate */
|
|
gst_structure_get_fraction (s, "framerate", &ts_pad->stream->num,
|
|
&ts_pad->stream->den);
|
|
|
|
/* Interlace mode */
|
|
ts_pad->stream->interlace_mode = FALSE;
|
|
if (interlace_mode) {
|
|
ts_pad->stream->interlace_mode =
|
|
g_str_equal (interlace_mode, "interleaved");
|
|
}
|
|
/* Width and Height */
|
|
gst_structure_get_int (s, "width", &ts_pad->stream->horizontal_size);
|
|
gst_structure_get_int (s, "height", &ts_pad->stream->vertical_size);
|
|
|
|
ts_pad->stream->color_spec = color_spec;
|
|
ts_pad->stream->max_bitrate = max_rate;
|
|
ts_pad->stream->profile_and_level = profile | main_level;
|
|
|
|
ts_pad->stream->opus_channel_config_code = opus_channel_config_code;
|
|
|
|
tsmux_stream_set_buffer_release_func (ts_pad->stream, release_buffer_cb);
|
|
tsmux_program_add_stream (ts_pad->prog, ts_pad->stream);
|
|
|
|
ret = GST_FLOW_OK;
|
|
}
|
|
gst_caps_unref (caps);
|
|
return ret;
|
|
/* ERRORS */
|
|
not_negotiated:
|
|
{
|
|
g_free (private_data);
|
|
GST_DEBUG_OBJECT (pad, "Sink pad caps were not set before pushing");
|
|
if (caps)
|
|
gst_caps_unref (caps);
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_base_ts_mux_create_streams (GstBaseTsMux * mux)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GList *walk = GST_ELEMENT (mux)->sinkpads;
|
|
|
|
/* Create the streams */
|
|
while (walk) {
|
|
GstPad *pad = GST_PAD (walk->data);
|
|
GstBaseTsMuxPad *ts_pad = GST_BASE_TS_MUX_PAD (walk->data);
|
|
gchar *name = NULL;
|
|
gchar *pcr_name;
|
|
|
|
walk = g_list_next (walk);
|
|
|
|
if (ts_pad->prog_id == -1) {
|
|
name = GST_PAD_NAME (pad);
|
|
if (mux->prog_map != NULL && gst_structure_has_field (mux->prog_map,
|
|
name)) {
|
|
gint idx;
|
|
gboolean ret = gst_structure_get_int (mux->prog_map, name, &idx);
|
|
if (!ret) {
|
|
GST_ELEMENT_ERROR (mux, STREAM, MUX,
|
|
("Reading program map failed. Assuming default"), (NULL));
|
|
idx = DEFAULT_PROG_ID;
|
|
}
|
|
if (idx < 0) {
|
|
GST_DEBUG_OBJECT (mux, "Program number %d associate with pad %s less "
|
|
"than zero; DEFAULT_PROGRAM = %d is used instead",
|
|
idx, name, DEFAULT_PROG_ID);
|
|
idx = DEFAULT_PROG_ID;
|
|
}
|
|
ts_pad->prog_id = idx;
|
|
} else {
|
|
ts_pad->prog_id = DEFAULT_PROG_ID;
|
|
}
|
|
}
|
|
|
|
ts_pad->prog =
|
|
(TsMuxProgram *) g_hash_table_lookup (mux->programs,
|
|
GINT_TO_POINTER (ts_pad->prog_id));
|
|
if (ts_pad->prog == NULL) {
|
|
ts_pad->prog = tsmux_program_new (mux->tsmux, ts_pad->prog_id);
|
|
if (ts_pad->prog == NULL)
|
|
goto no_program;
|
|
tsmux_set_pmt_interval (ts_pad->prog, mux->pmt_interval);
|
|
g_hash_table_insert (mux->programs,
|
|
GINT_TO_POINTER (ts_pad->prog_id), ts_pad->prog);
|
|
}
|
|
|
|
if (ts_pad->stream == NULL) {
|
|
ret = gst_base_ts_mux_create_stream (mux, ts_pad);
|
|
if (ret != GST_FLOW_OK)
|
|
goto no_stream;
|
|
}
|
|
|
|
if (ts_pad->prog->pcr_stream == NULL) {
|
|
/* Take the first stream of the program for the PCR */
|
|
GST_DEBUG_OBJECT (ts_pad,
|
|
"Use stream (pid=%d) from pad as PCR for program (prog_id = %d)",
|
|
ts_pad->pid, ts_pad->prog_id);
|
|
|
|
tsmux_program_set_pcr_stream (ts_pad->prog, ts_pad->stream);
|
|
}
|
|
|
|
/* Check for user-specified PCR PID */
|
|
pcr_name = g_strdup_printf ("PCR_%d", ts_pad->prog->pgm_number);
|
|
if (mux->prog_map && gst_structure_has_field (mux->prog_map, pcr_name)) {
|
|
const gchar *sink_name =
|
|
gst_structure_get_string (mux->prog_map, pcr_name);
|
|
|
|
if (!g_strcmp0 (name, sink_name)) {
|
|
GST_DEBUG_OBJECT (mux, "User specified stream (pid=%d) as PCR for "
|
|
"program (prog_id = %d)", ts_pad->pid, ts_pad->prog->pgm_number);
|
|
tsmux_program_set_pcr_stream (ts_pad->prog, ts_pad->stream);
|
|
}
|
|
}
|
|
g_free (pcr_name);
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
/* ERRORS */
|
|
no_program:
|
|
{
|
|
GST_ELEMENT_ERROR (mux, STREAM, MUX,
|
|
("Could not create new program"), (NULL));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
no_stream:
|
|
{
|
|
GST_ELEMENT_ERROR (mux, STREAM, MUX,
|
|
("Could not create handler for stream"), (NULL));
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
static void
|
|
new_packet_common_init (GstBaseTsMux * mux, GstBuffer * buf, guint8 * data,
|
|
guint len)
|
|
{
|
|
/* Packets should be at least 188 bytes, but check anyway */
|
|
g_assert (len >= 2 || !data);
|
|
|
|
if (!mux->streamheader_sent && data) {
|
|
guint pid = ((data[1] & 0x1f) << 8) | data[2];
|
|
/* if it's a PAT or a PMT */
|
|
if (pid == 0x00 || (pid >= TSMUX_START_PMT_PID && pid < TSMUX_START_ES_PID)) {
|
|
GstBuffer *hbuf;
|
|
|
|
if (!buf) {
|
|
hbuf = gst_buffer_new_and_alloc (len);
|
|
gst_buffer_fill (hbuf, 0, data, len);
|
|
} else {
|
|
hbuf = gst_buffer_copy (buf);
|
|
}
|
|
GST_LOG_OBJECT (mux,
|
|
"Collecting packet with pid 0x%04x into streamheaders", pid);
|
|
|
|
g_queue_push_tail (&mux->streamheader, hbuf);
|
|
} else if (!g_queue_is_empty (&mux->streamheader)) {
|
|
gst_base_ts_mux_set_header_on_caps (mux);
|
|
mux->streamheader_sent = TRUE;
|
|
}
|
|
}
|
|
|
|
if (buf) {
|
|
if (mux->is_header) {
|
|
GST_LOG_OBJECT (mux, "marking as header buffer");
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER);
|
|
}
|
|
if (mux->is_delta) {
|
|
GST_LOG_OBJECT (mux, "marking as delta unit");
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
} else {
|
|
GST_DEBUG_OBJECT (mux, "marking as non-delta unit");
|
|
mux->is_delta = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
finish_buffer_list (GstBaseTsMux * mux, GstBufferList * list)
|
|
{
|
|
guint i;
|
|
guint l = gst_buffer_list_length (list);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
for (i = 0; i < l; i++) {
|
|
GstBuffer *buf = gst_buffer_list_get (list, i);
|
|
|
|
ret =
|
|
gst_aggregator_finish_buffer (GST_AGGREGATOR (mux),
|
|
gst_buffer_ref (buf));
|
|
|
|
if (ret != GST_FLOW_OK)
|
|
break;
|
|
}
|
|
|
|
gst_buffer_list_unref (list);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_base_ts_mux_push_packets (GstBaseTsMux * mux, gboolean force)
|
|
{
|
|
GstBufferList *buffer_list;
|
|
gint align = mux->alignment;
|
|
gint av, packet_size;
|
|
|
|
packet_size = mux->packet_size;
|
|
|
|
if (align < 0)
|
|
align = mux->automatic_alignment;
|
|
|
|
av = gst_adapter_available (mux->out_adapter);
|
|
GST_LOG_OBJECT (mux, "align %d, av %d", align, av);
|
|
|
|
if (av == 0)
|
|
return GST_FLOW_OK;
|
|
|
|
/* no alignment, just push all available data */
|
|
if (align == 0) {
|
|
buffer_list = gst_adapter_take_buffer_list (mux->out_adapter, av);
|
|
return finish_buffer_list (mux, buffer_list);
|
|
}
|
|
|
|
align *= packet_size;
|
|
|
|
if (!force && align > av)
|
|
return GST_FLOW_OK;
|
|
|
|
buffer_list = gst_buffer_list_new_sized ((av / align) + 1);
|
|
|
|
GST_LOG_OBJECT (mux, "aligning to %d bytes", align);
|
|
while (align <= av) {
|
|
GstBuffer *buf;
|
|
GstClockTime pts;
|
|
|
|
pts = gst_adapter_prev_pts (mux->out_adapter, NULL);
|
|
buf = gst_adapter_take_buffer (mux->out_adapter, align);
|
|
|
|
GST_BUFFER_PTS (buf) = pts;
|
|
|
|
gst_buffer_list_add (buffer_list, buf);
|
|
av -= align;
|
|
}
|
|
|
|
if (av > 0 && force) {
|
|
GstBuffer *buf;
|
|
GstClockTime pts;
|
|
guint8 *data;
|
|
guint32 header;
|
|
gint dummy;
|
|
GstMapInfo map;
|
|
|
|
GST_LOG_OBJECT (mux, "handling %d leftover bytes", av);
|
|
|
|
pts = gst_adapter_prev_pts (mux->out_adapter, NULL);
|
|
buf = gst_buffer_new_and_alloc (align);
|
|
|
|
GST_BUFFER_PTS (buf) = pts;
|
|
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
data = map.data;
|
|
|
|
gst_adapter_copy (mux->out_adapter, data, 0, av);
|
|
gst_adapter_clear (mux->out_adapter);
|
|
|
|
data += av;
|
|
header = GST_READ_UINT32_BE (data - packet_size);
|
|
|
|
dummy = (map.size - av) / packet_size;
|
|
GST_LOG_OBJECT (mux, "adding %d null packets", dummy);
|
|
|
|
for (; dummy > 0; dummy--) {
|
|
gint offset;
|
|
|
|
if (packet_size > GST_BASE_TS_MUX_NORMAL_PACKET_LENGTH) {
|
|
GST_WRITE_UINT32_BE (data, header);
|
|
/* simply increase header a bit and never mind too much */
|
|
header++;
|
|
offset = 4;
|
|
} else {
|
|
offset = 0;
|
|
}
|
|
GST_WRITE_UINT8 (data + offset, TSMUX_SYNC_BYTE);
|
|
/* null packet PID */
|
|
GST_WRITE_UINT16_BE (data + offset + 1, 0x1FFF);
|
|
/* no adaptation field exists | continuity counter undefined */
|
|
GST_WRITE_UINT8 (data + offset + 3, 0x10);
|
|
/* payload */
|
|
memset (data + offset + 4, 0, GST_BASE_TS_MUX_NORMAL_PACKET_LENGTH - 4);
|
|
data += packet_size;
|
|
}
|
|
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_buffer_list_add (buffer_list, buf);
|
|
}
|
|
|
|
return finish_buffer_list (mux, buffer_list);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_base_ts_mux_collect_packet (GstBaseTsMux * mux, GstBuffer * buf)
|
|
{
|
|
GST_LOG_OBJECT (mux, "collecting packet size %" G_GSIZE_FORMAT,
|
|
gst_buffer_get_size (buf));
|
|
gst_adapter_push (mux->out_adapter, buf);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstEvent *
|
|
check_pending_key_unit_event (GstEvent * pending_event, GstSegment * segment,
|
|
GstClockTime timestamp, guint flags, GstClockTime pending_key_unit_ts)
|
|
{
|
|
GstClockTime running_time, stream_time;
|
|
gboolean all_headers;
|
|
guint count;
|
|
GstEvent *event = NULL;
|
|
|
|
g_assert (segment != NULL);
|
|
|
|
if (pending_event == NULL)
|
|
goto out;
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (pending_key_unit_ts) &&
|
|
timestamp == GST_CLOCK_TIME_NONE)
|
|
goto out;
|
|
|
|
running_time = timestamp;
|
|
|
|
GST_INFO ("now %" GST_TIME_FORMAT " wanted %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (running_time), GST_TIME_ARGS (pending_key_unit_ts));
|
|
if (GST_CLOCK_TIME_IS_VALID (pending_key_unit_ts) &&
|
|
running_time < pending_key_unit_ts)
|
|
goto out;
|
|
|
|
if (flags & GST_BUFFER_FLAG_DELTA_UNIT) {
|
|
GST_INFO ("pending force key unit, waiting for keyframe");
|
|
goto out;
|
|
}
|
|
|
|
stream_time = gst_segment_to_stream_time (segment,
|
|
GST_FORMAT_TIME, timestamp);
|
|
|
|
if (GST_EVENT_TYPE (pending_event) == GST_EVENT_CUSTOM_DOWNSTREAM) {
|
|
gst_video_event_parse_downstream_force_key_unit (pending_event,
|
|
NULL, NULL, NULL, &all_headers, &count);
|
|
} else {
|
|
gst_video_event_parse_upstream_force_key_unit (pending_event, NULL,
|
|
&all_headers, &count);
|
|
}
|
|
|
|
event =
|
|
gst_video_event_new_downstream_force_key_unit (timestamp, stream_time,
|
|
running_time, all_headers, count);
|
|
gst_event_set_seqnum (event, gst_event_get_seqnum (pending_event));
|
|
|
|
out:
|
|
return event;
|
|
}
|
|
|
|
/* Called when the TsMux has prepared a packet for output. Return FALSE
|
|
* on error */
|
|
static gboolean
|
|
new_packet_cb (GstBuffer * buf, void *user_data, gint64 new_pcr)
|
|
{
|
|
GstBaseTsMux *mux = (GstBaseTsMux *) user_data;
|
|
GstBaseTsMuxClass *klass = GST_BASE_TS_MUX_GET_CLASS (mux);
|
|
GstMapInfo map;
|
|
|
|
g_assert (klass->output_packet);
|
|
|
|
gst_buffer_map (buf, &map, GST_MAP_READWRITE);
|
|
|
|
if (!GST_CLOCK_TIME_IS_VALID (GST_BUFFER_PTS (buf)))
|
|
GST_BUFFER_PTS (buf) = mux->last_ts;
|
|
|
|
/* do common init (flags and streamheaders) */
|
|
new_packet_common_init (mux, buf, map.data, map.size);
|
|
|
|
gst_buffer_unmap (buf, &map);
|
|
|
|
return klass->output_packet (mux, buf, new_pcr);
|
|
}
|
|
|
|
/* called when TsMux needs new packet to write into */
|
|
static void
|
|
alloc_packet_cb (GstBuffer ** buf, void *user_data)
|
|
{
|
|
GstBaseTsMux *mux = (GstBaseTsMux *) user_data;
|
|
GstBaseTsMuxClass *klass = GST_BASE_TS_MUX_GET_CLASS (mux);
|
|
|
|
g_assert (klass->allocate_packet);
|
|
|
|
klass->allocate_packet (mux, buf);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_base_ts_mux_aggregate_buffer (GstBaseTsMux * mux,
|
|
GstAggregatorPad * agg_pad, GstBuffer * buf)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstBaseTsMuxPad *best = GST_BASE_TS_MUX_PAD (agg_pad);
|
|
TsMuxProgram *prog;
|
|
gint64 pts = GST_CLOCK_STIME_NONE;
|
|
gint64 dts = GST_CLOCK_STIME_NONE;
|
|
gboolean delta = TRUE, header = FALSE;
|
|
StreamData *stream_data;
|
|
|
|
GST_DEBUG_OBJECT (mux, "Pads collected");
|
|
|
|
if (G_UNLIKELY (mux->first)) {
|
|
ret = gst_base_ts_mux_create_streams (mux);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK)) {
|
|
if (buf)
|
|
gst_buffer_unref (buf);
|
|
return ret;
|
|
}
|
|
|
|
mux->first = FALSE;
|
|
}
|
|
|
|
prog = best->prog;
|
|
if (prog == NULL)
|
|
goto no_program;
|
|
|
|
g_assert (buf != NULL);
|
|
|
|
if (best->prepare_func) {
|
|
GstBuffer *tmp;
|
|
|
|
tmp = best->prepare_func (buf, best, mux);
|
|
g_assert (tmp);
|
|
gst_buffer_unref (buf);
|
|
buf = tmp;
|
|
}
|
|
|
|
if (mux->force_key_unit_event != NULL && best->stream->is_video_stream) {
|
|
GstEvent *event;
|
|
|
|
event = check_pending_key_unit_event (mux->force_key_unit_event,
|
|
&agg_pad->segment, GST_BUFFER_PTS (buf),
|
|
GST_BUFFER_FLAGS (buf), mux->pending_key_unit_ts);
|
|
if (event) {
|
|
GstClockTime running_time;
|
|
guint count;
|
|
GList *cur;
|
|
|
|
mux->pending_key_unit_ts = GST_CLOCK_TIME_NONE;
|
|
gst_event_replace (&mux->force_key_unit_event, NULL);
|
|
|
|
gst_video_event_parse_downstream_force_key_unit (event,
|
|
NULL, NULL, &running_time, NULL, &count);
|
|
|
|
GST_INFO_OBJECT (mux, "pushing downstream force-key-unit event %d "
|
|
"%" GST_TIME_FORMAT " count %d", gst_event_get_seqnum (event),
|
|
GST_TIME_ARGS (running_time), count);
|
|
gst_pad_push_event (GST_AGGREGATOR_SRC_PAD (mux), event);
|
|
|
|
/* output PAT, SI tables */
|
|
tsmux_resend_pat (mux->tsmux);
|
|
tsmux_resend_si (mux->tsmux);
|
|
|
|
/* output PMT for each program */
|
|
for (cur = mux->tsmux->programs; cur; cur = cur->next) {
|
|
TsMuxProgram *program = (TsMuxProgram *) cur->data;
|
|
|
|
tsmux_resend_pmt (program);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (G_UNLIKELY (prog->pcr_stream == NULL)) {
|
|
/* Take the first data stream for the PCR */
|
|
GST_DEBUG_OBJECT (best,
|
|
"Use stream (pid=%d) from pad as PCR for program (prog_id = %d)",
|
|
best->pid, best->prog_id);
|
|
|
|
/* Set the chosen PCR stream */
|
|
tsmux_program_set_pcr_stream (prog, best->stream);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (best, "Chose stream for output (PID: 0x%04x)", best->pid);
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_PTS (buf))) {
|
|
pts = GSTTIME_TO_MPEGTIME (GST_BUFFER_PTS (buf));
|
|
GST_DEBUG_OBJECT (mux, "Buffer has PTS %" GST_TIME_FORMAT " pts %"
|
|
G_GINT64_FORMAT, GST_TIME_ARGS (GST_BUFFER_PTS (buf)), pts);
|
|
}
|
|
|
|
if (GST_CLOCK_STIME_IS_VALID (best->dts)) {
|
|
dts = GSTTIME_TO_MPEGTIME (best->dts);
|
|
GST_DEBUG_OBJECT (mux, "Buffer has DTS %" GST_STIME_FORMAT " dts %"
|
|
G_GINT64_FORMAT, GST_STIME_ARGS (best->dts), dts);
|
|
}
|
|
|
|
/* should not have a DTS without PTS */
|
|
if (!GST_CLOCK_STIME_IS_VALID (pts) && GST_CLOCK_STIME_IS_VALID (dts)) {
|
|
GST_DEBUG_OBJECT (mux, "using DTS for unknown PTS");
|
|
pts = dts;
|
|
}
|
|
|
|
if (best->stream->is_video_stream) {
|
|
delta = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
header = GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_HEADER);
|
|
}
|
|
|
|
if (best->stream->is_meta && gst_buffer_get_size (buf) > (G_MAXUINT16 - 3)) {
|
|
GST_WARNING_OBJECT (mux, "KLV meta unit too big, splitting not supported");
|
|
|
|
gst_buffer_unref (buf);
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (mux, "delta: %d", delta);
|
|
|
|
stream_data = stream_data_new (buf);
|
|
tsmux_stream_add_data (best->stream, stream_data->map_info.data,
|
|
stream_data->map_info.size, stream_data, pts, dts, !delta);
|
|
|
|
/* outgoing ts follows ts of PCR program stream */
|
|
if (prog->pcr_stream == best->stream) {
|
|
/* prefer DTS if present for PCR as it should be monotone */
|
|
mux->last_ts =
|
|
GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DTS (buf)) ?
|
|
GST_BUFFER_DTS (buf) : GST_BUFFER_PTS (buf);
|
|
}
|
|
|
|
mux->is_delta = delta;
|
|
mux->is_header = header;
|
|
while (tsmux_stream_bytes_in_buffer (best->stream) > 0) {
|
|
if (!tsmux_write_stream_packet (mux->tsmux, best->stream)) {
|
|
/* Failed writing data for some reason. Set appropriate error */
|
|
GST_DEBUG_OBJECT (mux, "Failed to write data packet");
|
|
GST_ELEMENT_ERROR (mux, STREAM, MUX,
|
|
("Failed writing output data to stream %04x", best->stream->id),
|
|
(NULL));
|
|
goto write_fail;
|
|
}
|
|
}
|
|
/* flush packet cache */
|
|
return gst_base_ts_mux_push_packets (mux, FALSE);
|
|
|
|
/* ERRORS */
|
|
write_fail:
|
|
{
|
|
return mux->last_flow_ret;
|
|
}
|
|
no_program:
|
|
{
|
|
if (buf)
|
|
gst_buffer_unref (buf);
|
|
GST_ELEMENT_ERROR (mux, STREAM, MUX,
|
|
("Stream on pad %" GST_PTR_FORMAT
|
|
" is not associated with any program", best), (NULL));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
/* GstElement implementation */
|
|
|
|
static GstPad *
|
|
gst_base_ts_mux_request_new_pad (GstElement * element, GstPadTemplate * templ,
|
|
const gchar * name, const GstCaps * caps)
|
|
{
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (element);
|
|
gint pid = -1;
|
|
GstPad *pad = NULL;
|
|
|
|
if (name != NULL && sscanf (name, "sink_%d", &pid) == 1) {
|
|
if (tsmux_find_stream (mux->tsmux, pid))
|
|
goto stream_exists;
|
|
} else {
|
|
pid = tsmux_get_new_pid (mux->tsmux);
|
|
}
|
|
|
|
pad = (GstPad *)
|
|
GST_ELEMENT_CLASS (parent_class)->request_new_pad (element,
|
|
templ, name, caps);
|
|
|
|
gst_base_ts_mux_pad_reset (GST_BASE_TS_MUX_PAD (pad));
|
|
GST_BASE_TS_MUX_PAD (pad)->pid = pid;
|
|
|
|
return pad;
|
|
|
|
/* ERRORS */
|
|
stream_exists:
|
|
{
|
|
GST_ELEMENT_ERROR (element, STREAM, MUX, ("Duplicate PID requested"),
|
|
(NULL));
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_base_ts_mux_send_event (GstElement * element, GstEvent * event)
|
|
{
|
|
GstMpegtsSection *section;
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (element);
|
|
|
|
section = gst_event_parse_mpegts_section (event);
|
|
|
|
if (section) {
|
|
GST_DEBUG ("Received event with mpegts section");
|
|
|
|
/* TODO: Check that the section type is supported */
|
|
tsmux_add_mpegts_si_section (mux->tsmux, section);
|
|
|
|
gst_event_unref (event);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return GST_ELEMENT_CLASS (parent_class)->send_event (element, event);
|
|
}
|
|
|
|
/* GstAggregator implementation */
|
|
|
|
static gboolean
|
|
gst_base_ts_mux_sink_event (GstAggregator * agg, GstAggregatorPad * agg_pad,
|
|
GstEvent * event)
|
|
{
|
|
GstAggregatorClass *agg_class = GST_AGGREGATOR_CLASS (parent_class);
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (agg);
|
|
GstBaseTsMuxPad *ts_pad = GST_BASE_TS_MUX_PAD (agg_pad);
|
|
gboolean res = FALSE;
|
|
gboolean forward = TRUE;
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_CUSTOM_DOWNSTREAM:
|
|
{
|
|
GstClockTime timestamp, stream_time, running_time;
|
|
gboolean all_headers;
|
|
guint count;
|
|
|
|
if (!gst_video_event_is_force_key_unit (event))
|
|
goto out;
|
|
|
|
res = TRUE;
|
|
forward = FALSE;
|
|
|
|
gst_video_event_parse_downstream_force_key_unit (event,
|
|
×tamp, &stream_time, &running_time, &all_headers, &count);
|
|
GST_INFO_OBJECT (ts_pad, "have downstream force-key-unit event, "
|
|
"seqnum %d, running-time %" GST_TIME_FORMAT " count %d",
|
|
gst_event_get_seqnum (event), GST_TIME_ARGS (running_time), count);
|
|
|
|
if (mux->force_key_unit_event != NULL) {
|
|
GST_INFO_OBJECT (mux, "skipping downstream force key unit event "
|
|
"as an upstream force key unit is already queued");
|
|
goto out;
|
|
}
|
|
|
|
if (!all_headers)
|
|
goto out;
|
|
|
|
mux->pending_key_unit_ts = running_time;
|
|
gst_event_replace (&mux->force_key_unit_event, event);
|
|
break;
|
|
}
|
|
case GST_EVENT_TAG:{
|
|
GstTagList *list;
|
|
gchar *lang = NULL;
|
|
|
|
GST_DEBUG_OBJECT (mux, "received tag event");
|
|
gst_event_parse_tag (event, &list);
|
|
|
|
/* Matroska wants ISO 639-2B code, taglist most likely contains 639-1 */
|
|
if (gst_tag_list_get_string (list, GST_TAG_LANGUAGE_CODE, &lang)) {
|
|
const gchar *lang_code;
|
|
|
|
lang_code = gst_tag_get_language_code_iso_639_2B (lang);
|
|
if (lang_code) {
|
|
GST_DEBUG_OBJECT (ts_pad, "Setting language to '%s'", lang_code);
|
|
|
|
g_free (ts_pad->language);
|
|
ts_pad->language = g_strdup (lang_code);
|
|
} else {
|
|
GST_WARNING_OBJECT (ts_pad, "Did not get language code for '%s'",
|
|
lang);
|
|
}
|
|
g_free (lang);
|
|
}
|
|
|
|
/* handled this, don't want collectpads to forward it downstream */
|
|
res = TRUE;
|
|
forward = gst_tag_list_get_scope (list) == GST_TAG_SCOPE_GLOBAL;
|
|
break;
|
|
}
|
|
case GST_EVENT_STREAM_START:{
|
|
GstStreamFlags flags;
|
|
|
|
gst_event_parse_stream_flags (event, &flags);
|
|
|
|
/* Don't wait for data on sparse inputs like metadata streams */
|
|
/*
|
|
if ((flags & GST_STREAM_FLAG_SPARSE)) {
|
|
GST_COLLECT_PADS_STATE_UNSET (data, GST_COLLECT_PADS_STATE_LOCKED);
|
|
gst_collect_pads_set_waiting (pads, data, FALSE);
|
|
GST_COLLECT_PADS_STATE_SET (data, GST_COLLECT_PADS_STATE_LOCKED);
|
|
}
|
|
*/
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
out:
|
|
if (!forward)
|
|
gst_event_unref (event);
|
|
else
|
|
res = agg_class->sink_event (agg, agg_pad, event);
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_base_ts_mux_src_event (GstAggregator * agg, GstEvent * event)
|
|
{
|
|
GstAggregatorClass *agg_class = GST_AGGREGATOR_CLASS (parent_class);
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (agg);
|
|
gboolean res = TRUE, forward = TRUE;
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_CUSTOM_UPSTREAM:
|
|
{
|
|
GstIterator *iter;
|
|
GstIteratorResult iter_ret;
|
|
GstPad *sinkpad;
|
|
GValue sinkpad_value = G_VALUE_INIT;
|
|
GstClockTime running_time;
|
|
gboolean all_headers, done, res = FALSE;
|
|
guint count;
|
|
|
|
if (!gst_video_event_is_force_key_unit (event))
|
|
break;
|
|
|
|
forward = FALSE;
|
|
|
|
gst_video_event_parse_upstream_force_key_unit (event,
|
|
&running_time, &all_headers, &count);
|
|
|
|
GST_INFO_OBJECT (mux, "received upstream force-key-unit event, "
|
|
"seqnum %d running_time %" GST_TIME_FORMAT " all_headers %d count %d",
|
|
gst_event_get_seqnum (event), GST_TIME_ARGS (running_time),
|
|
all_headers, count);
|
|
|
|
if (!all_headers)
|
|
break;
|
|
|
|
mux->pending_key_unit_ts = running_time;
|
|
gst_event_replace (&mux->force_key_unit_event, event);
|
|
|
|
iter = gst_element_iterate_sink_pads (GST_ELEMENT_CAST (mux));
|
|
done = FALSE;
|
|
while (!done) {
|
|
gboolean tmp;
|
|
|
|
iter_ret = gst_iterator_next (iter, &sinkpad_value);
|
|
sinkpad = GST_PAD (g_value_get_object (&sinkpad_value));
|
|
|
|
switch (iter_ret) {
|
|
case GST_ITERATOR_DONE:
|
|
done = TRUE;
|
|
break;
|
|
case GST_ITERATOR_OK:
|
|
GST_INFO_OBJECT (GST_AGGREGATOR_SRC_PAD (agg), "forwarding");
|
|
tmp = gst_pad_push_event (sinkpad, gst_event_ref (event));
|
|
GST_INFO_OBJECT (mux, "result %d", tmp);
|
|
/* succeed if at least one pad succeeds */
|
|
res |= tmp;
|
|
break;
|
|
case GST_ITERATOR_ERROR:
|
|
done = TRUE;
|
|
break;
|
|
case GST_ITERATOR_RESYNC:
|
|
break;
|
|
}
|
|
g_value_reset (&sinkpad_value);
|
|
}
|
|
g_value_unset (&sinkpad_value);
|
|
gst_iterator_free (iter);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (forward)
|
|
res = agg_class->src_event (agg, event);
|
|
else
|
|
gst_event_unref (event);
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_base_ts_mux_clip (GstAggregator * agg,
|
|
GstAggregatorPad * agg_pad, GstBuffer * buf)
|
|
{
|
|
GstBaseTsMuxPad *pad = GST_BASE_TS_MUX_PAD (agg_pad);
|
|
GstClockTime time;
|
|
GstBuffer *ret;
|
|
|
|
ret = buf;
|
|
|
|
/* PTS */
|
|
time = GST_BUFFER_PTS (buf);
|
|
|
|
/* invalid left alone and passed */
|
|
if (G_LIKELY (GST_CLOCK_TIME_IS_VALID (time))) {
|
|
time =
|
|
gst_segment_to_running_time (&agg_pad->segment, GST_FORMAT_TIME, time);
|
|
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (time))) {
|
|
GST_DEBUG_OBJECT (pad, "clipping buffer on pad outside segment");
|
|
gst_buffer_unref (buf);
|
|
ret = NULL;
|
|
goto beach;
|
|
} else {
|
|
GST_LOG_OBJECT (pad, "buffer pts %" GST_TIME_FORMAT " -> %"
|
|
GST_TIME_FORMAT " running time",
|
|
GST_TIME_ARGS (GST_BUFFER_PTS (buf)), GST_TIME_ARGS (time));
|
|
buf = ret = gst_buffer_make_writable (buf);
|
|
GST_BUFFER_PTS (ret) = time;
|
|
}
|
|
}
|
|
|
|
/* DTS */
|
|
time = GST_BUFFER_DTS (buf);
|
|
|
|
/* invalid left alone and passed */
|
|
if (G_LIKELY (GST_CLOCK_TIME_IS_VALID (time))) {
|
|
gint sign;
|
|
gint64 dts;
|
|
|
|
sign = gst_segment_to_running_time_full (&agg_pad->segment, GST_FORMAT_TIME,
|
|
time, &time);
|
|
|
|
if (sign > 0)
|
|
dts = (gint64) time;
|
|
else
|
|
dts = -((gint64) time);
|
|
|
|
GST_LOG_OBJECT (pad, "buffer dts %" GST_TIME_FORMAT " -> %"
|
|
GST_STIME_FORMAT " running time", GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
|
|
GST_STIME_ARGS (dts));
|
|
|
|
if (GST_CLOCK_STIME_IS_VALID (pad->dts) && dts < pad->dts) {
|
|
/* Ignore DTS going backward */
|
|
GST_WARNING_OBJECT (pad, "ignoring DTS going backward");
|
|
dts = pad->dts;
|
|
}
|
|
|
|
ret = gst_buffer_make_writable (buf);
|
|
if (sign > 0)
|
|
GST_BUFFER_DTS (ret) = time;
|
|
else
|
|
GST_BUFFER_DTS (ret) = GST_CLOCK_TIME_NONE;
|
|
|
|
pad->dts = dts;
|
|
} else {
|
|
pad->dts = GST_CLOCK_STIME_NONE;
|
|
}
|
|
|
|
beach:
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_base_ts_mux_update_src_caps (GstAggregator * agg, GstCaps * caps,
|
|
GstCaps ** ret)
|
|
{
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (agg);
|
|
GstStructure *s;
|
|
|
|
*ret = gst_caps_copy (caps);
|
|
s = gst_caps_get_structure (*ret, 0);
|
|
gst_structure_set (s, "packetsize", G_TYPE_INT, mux->packet_size, NULL);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstBaseTsMuxPad *
|
|
gst_base_ts_mux_find_best_pad (GstAggregator * aggregator)
|
|
{
|
|
GstBaseTsMuxPad *pad, *best = NULL;
|
|
GList *l;
|
|
GstBuffer *buffer;
|
|
GstClockTime best_ts = GST_CLOCK_TIME_NONE;
|
|
|
|
for (l = GST_ELEMENT_CAST (aggregator)->sinkpads; l; l = l->next) {
|
|
pad = GST_BASE_TS_MUX_PAD (l->data);
|
|
buffer = gst_aggregator_pad_peek_buffer (GST_AGGREGATOR_PAD (pad));
|
|
if (!buffer)
|
|
continue;
|
|
if (best_ts == GST_CLOCK_TIME_NONE) {
|
|
best = pad;
|
|
best_ts = GST_BUFFER_DTS_OR_PTS (buffer);
|
|
} else if (GST_BUFFER_DTS_OR_PTS (buffer) != GST_CLOCK_TIME_NONE) {
|
|
GstClockTime t = GST_BUFFER_DTS_OR_PTS (buffer);
|
|
if (t < best_ts) {
|
|
best = pad;
|
|
best_ts = t;
|
|
}
|
|
}
|
|
gst_buffer_unref (buffer);
|
|
}
|
|
GST_DEBUG_OBJECT (aggregator,
|
|
"Best pad found with %" GST_TIME_FORMAT ": %" GST_PTR_FORMAT,
|
|
GST_TIME_ARGS (best_ts), best);
|
|
|
|
return best;
|
|
}
|
|
|
|
static gboolean
|
|
gst_base_ts_mux_are_all_pads_eos (GstBaseTsMux * mux)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = GST_ELEMENT_CAST (mux)->sinkpads; l; l = l->next) {
|
|
GstBaseTsMuxPad *pad = GST_BASE_TS_MUX_PAD (l->data);
|
|
|
|
if (!gst_aggregator_pad_is_eos (GST_AGGREGATOR_PAD (pad)))
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static GstFlowReturn
|
|
gst_base_ts_mux_aggregate (GstAggregator * agg, gboolean timeout)
|
|
{
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (agg);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstBaseTsMuxPad *best = gst_base_ts_mux_find_best_pad (agg);
|
|
|
|
if (best) {
|
|
GstBuffer *buffer;
|
|
|
|
buffer = gst_aggregator_pad_pop_buffer (GST_AGGREGATOR_PAD (best));
|
|
|
|
ret =
|
|
gst_base_ts_mux_aggregate_buffer (GST_BASE_TS_MUX (agg),
|
|
GST_AGGREGATOR_PAD (best), buffer);
|
|
|
|
if (ret != GST_FLOW_OK)
|
|
goto done;
|
|
}
|
|
|
|
if (gst_base_ts_mux_are_all_pads_eos (mux)) {
|
|
GstBaseTsMuxClass *klass = GST_BASE_TS_MUX_GET_CLASS (mux);
|
|
/* drain some possibly cached data */
|
|
if (klass->drain)
|
|
klass->drain (mux);
|
|
gst_base_ts_mux_push_packets (mux, TRUE);
|
|
|
|
ret = GST_FLOW_EOS;
|
|
}
|
|
|
|
done:
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_base_ts_mux_start (GstAggregator * agg)
|
|
{
|
|
gst_base_ts_mux_reset (GST_BASE_TS_MUX (agg), TRUE);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_base_ts_mux_stop (GstAggregator * agg)
|
|
{
|
|
gst_base_ts_mux_reset (GST_BASE_TS_MUX (agg), FALSE);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* GObject implementation */
|
|
|
|
static void
|
|
gst_base_ts_mux_dispose (GObject * object)
|
|
{
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (object);
|
|
|
|
gst_base_ts_mux_reset (mux, FALSE);
|
|
|
|
if (mux->out_adapter) {
|
|
g_object_unref (mux->out_adapter);
|
|
mux->out_adapter = NULL;
|
|
}
|
|
if (mux->prog_map) {
|
|
gst_structure_free (mux->prog_map);
|
|
mux->prog_map = NULL;
|
|
}
|
|
if (mux->programs) {
|
|
g_hash_table_destroy (mux->programs);
|
|
mux->programs = NULL;
|
|
}
|
|
GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object));
|
|
}
|
|
|
|
static void
|
|
gst_base_ts_mux_constructed (GObject * object)
|
|
{
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (object);
|
|
|
|
/* initial state */
|
|
gst_base_ts_mux_reset (mux, TRUE);
|
|
}
|
|
|
|
static void
|
|
gst_base_ts_mux_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (object);
|
|
GList *walk;
|
|
|
|
switch (prop_id) {
|
|
case PROP_PROG_MAP:
|
|
{
|
|
const GstStructure *s = gst_value_get_structure (value);
|
|
if (mux->prog_map) {
|
|
gst_structure_free (mux->prog_map);
|
|
}
|
|
if (s)
|
|
mux->prog_map = gst_structure_copy (s);
|
|
else
|
|
mux->prog_map = NULL;
|
|
break;
|
|
}
|
|
case PROP_PAT_INTERVAL:
|
|
mux->pat_interval = g_value_get_uint (value);
|
|
if (mux->tsmux)
|
|
tsmux_set_pat_interval (mux->tsmux, mux->pat_interval);
|
|
break;
|
|
case PROP_PMT_INTERVAL:
|
|
walk = GST_ELEMENT (object)->sinkpads;
|
|
mux->pmt_interval = g_value_get_uint (value);
|
|
|
|
while (walk) {
|
|
GstBaseTsMuxPad *ts_pad = GST_BASE_TS_MUX_PAD (walk->data);
|
|
|
|
tsmux_set_pmt_interval (ts_pad->prog, mux->pmt_interval);
|
|
walk = g_list_next (walk);
|
|
}
|
|
break;
|
|
case PROP_ALIGNMENT:
|
|
mux->alignment = g_value_get_int (value);
|
|
break;
|
|
case PROP_SI_INTERVAL:
|
|
mux->si_interval = g_value_get_uint (value);
|
|
tsmux_set_si_interval (mux->tsmux, mux->si_interval);
|
|
break;
|
|
case PROP_BITRATE:
|
|
mux->bitrate = g_value_get_uint64 (value);
|
|
if (mux->tsmux)
|
|
tsmux_set_bitrate (mux->tsmux, mux->bitrate);
|
|
break;
|
|
case PROP_PCR_INTERVAL:
|
|
mux->pcr_interval = g_value_get_uint (value);
|
|
if (mux->tsmux)
|
|
tsmux_set_pcr_interval (mux->tsmux, mux->pcr_interval);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_base_ts_mux_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstBaseTsMux *mux = GST_BASE_TS_MUX (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_PROG_MAP:
|
|
gst_value_set_structure (value, mux->prog_map);
|
|
break;
|
|
case PROP_PAT_INTERVAL:
|
|
g_value_set_uint (value, mux->pat_interval);
|
|
break;
|
|
case PROP_PMT_INTERVAL:
|
|
g_value_set_uint (value, mux->pmt_interval);
|
|
break;
|
|
case PROP_ALIGNMENT:
|
|
g_value_set_int (value, mux->alignment);
|
|
break;
|
|
case PROP_SI_INTERVAL:
|
|
g_value_set_uint (value, mux->si_interval);
|
|
break;
|
|
case PROP_BITRATE:
|
|
g_value_set_uint64 (value, mux->bitrate);
|
|
break;
|
|
case PROP_PCR_INTERVAL:
|
|
g_value_set_uint (value, mux->pcr_interval);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Default vmethods implementation */
|
|
|
|
static TsMux *
|
|
gst_base_ts_mux_default_create_ts_mux (GstBaseTsMux * mux)
|
|
{
|
|
TsMux *tsmux = tsmux_new ();
|
|
tsmux_set_write_func (tsmux, new_packet_cb, mux);
|
|
tsmux_set_alloc_func (tsmux, alloc_packet_cb, mux);
|
|
tsmux_set_bitrate (tsmux, mux->bitrate);
|
|
|
|
return tsmux;
|
|
}
|
|
|
|
static void
|
|
gst_base_ts_mux_default_allocate_packet (GstBaseTsMux * mux,
|
|
GstBuffer ** buffer)
|
|
{
|
|
GstBuffer *buf;
|
|
|
|
buf = gst_buffer_new_and_alloc (mux->packet_size);
|
|
|
|
*buffer = buf;
|
|
}
|
|
|
|
static gboolean
|
|
gst_base_ts_mux_default_output_packet (GstBaseTsMux * mux, GstBuffer * buffer,
|
|
gint64 new_pcr)
|
|
{
|
|
gst_base_ts_mux_collect_packet (mux, buffer);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Subclass API */
|
|
|
|
void
|
|
gst_base_ts_mux_set_packet_size (GstBaseTsMux * mux, gsize size)
|
|
{
|
|
mux->packet_size = size;
|
|
}
|
|
|
|
void
|
|
gst_base_ts_mux_set_automatic_alignment (GstBaseTsMux * mux, gsize alignment)
|
|
{
|
|
mux->automatic_alignment = alignment;
|
|
}
|
|
|
|
static void
|
|
gst_base_ts_mux_class_init (GstBaseTsMuxClass * klass)
|
|
{
|
|
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
|
|
GstAggregatorClass *gstagg_class = GST_AGGREGATOR_CLASS (klass);
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_base_ts_mux_debug, "basetsmux", 0,
|
|
"MPEG Transport Stream muxer");
|
|
|
|
gst_element_class_set_static_metadata (gstelement_class,
|
|
"MPEG Transport Stream Muxer", "Codec/Muxer",
|
|
"Multiplexes media streams into an MPEG Transport Stream",
|
|
"Fluendo <contact@fluendo.com>");
|
|
|
|
gobject_class->set_property =
|
|
GST_DEBUG_FUNCPTR (gst_base_ts_mux_set_property);
|
|
gobject_class->get_property =
|
|
GST_DEBUG_FUNCPTR (gst_base_ts_mux_get_property);
|
|
gobject_class->dispose = gst_base_ts_mux_dispose;
|
|
gobject_class->constructed = gst_base_ts_mux_constructed;
|
|
|
|
gstelement_class->request_new_pad = gst_base_ts_mux_request_new_pad;
|
|
gstelement_class->send_event = gst_base_ts_mux_send_event;
|
|
|
|
gstagg_class->update_src_caps = gst_base_ts_mux_update_src_caps;
|
|
gstagg_class->aggregate = gst_base_ts_mux_aggregate;
|
|
gstagg_class->clip = gst_base_ts_mux_clip;
|
|
gstagg_class->sink_event = gst_base_ts_mux_sink_event;
|
|
gstagg_class->src_event = gst_base_ts_mux_src_event;
|
|
gstagg_class->start = gst_base_ts_mux_start;
|
|
gstagg_class->stop = gst_base_ts_mux_stop;
|
|
|
|
klass->create_ts_mux = gst_base_ts_mux_default_create_ts_mux;
|
|
klass->allocate_packet = gst_base_ts_mux_default_allocate_packet;
|
|
klass->output_packet = gst_base_ts_mux_default_output_packet;
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PROG_MAP,
|
|
g_param_spec_boxed ("prog-map", "Program map",
|
|
"A GstStructure specifies the mapping from elementary streams to programs",
|
|
GST_TYPE_STRUCTURE,
|
|
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PAT_INTERVAL,
|
|
g_param_spec_uint ("pat-interval", "PAT interval",
|
|
"Set the interval (in ticks of the 90kHz clock) for writing out the PAT table",
|
|
1, G_MAXUINT, TSMUX_DEFAULT_PAT_INTERVAL,
|
|
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PMT_INTERVAL,
|
|
g_param_spec_uint ("pmt-interval", "PMT interval",
|
|
"Set the interval (in ticks of the 90kHz clock) for writing out the PMT table",
|
|
1, G_MAXUINT, TSMUX_DEFAULT_PMT_INTERVAL,
|
|
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_ALIGNMENT,
|
|
g_param_spec_int ("alignment", "packet alignment",
|
|
"Number of packets per buffer (padded with dummy packets on EOS) "
|
|
"(-1 = auto, 0 = all available packets, 7 for UDP streaming)",
|
|
-1, G_MAXINT, BASETSMUX_DEFAULT_ALIGNMENT,
|
|
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SI_INTERVAL,
|
|
g_param_spec_uint ("si-interval", "SI interval",
|
|
"Set the interval (in ticks of the 90kHz clock) for writing out the Service"
|
|
"Information tables", 1, G_MAXUINT, TSMUX_DEFAULT_SI_INTERVAL,
|
|
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_BITRATE,
|
|
g_param_spec_uint64 ("bitrate", "Bitrate (in bits per second)",
|
|
"Set the target bitrate, will insert null packets as padding "
|
|
" to achieve multiplex-wide constant bitrate (0 means no padding)",
|
|
0, G_MAXUINT64, TSMUX_DEFAULT_BITRATE,
|
|
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
|
|
|
|
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PCR_INTERVAL,
|
|
g_param_spec_uint ("pcr-interval", "PCR interval",
|
|
"Set the interval (in ticks of the 90kHz clock) for writing PCR",
|
|
1, G_MAXUINT, TSMUX_DEFAULT_PCR_INTERVAL,
|
|
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
|
|
|
|
gst_element_class_add_static_pad_template_with_gtype (gstelement_class,
|
|
&gst_base_ts_mux_src_factory, GST_TYPE_AGGREGATOR_PAD);
|
|
}
|
|
|
|
static void
|
|
gst_base_ts_mux_init (GstBaseTsMux * mux)
|
|
{
|
|
mux->out_adapter = gst_adapter_new ();
|
|
|
|
/* properties */
|
|
mux->pat_interval = TSMUX_DEFAULT_PAT_INTERVAL;
|
|
mux->pmt_interval = TSMUX_DEFAULT_PMT_INTERVAL;
|
|
mux->si_interval = TSMUX_DEFAULT_SI_INTERVAL;
|
|
mux->pcr_interval = TSMUX_DEFAULT_PCR_INTERVAL;
|
|
mux->prog_map = NULL;
|
|
mux->alignment = BASETSMUX_DEFAULT_ALIGNMENT;
|
|
mux->bitrate = TSMUX_DEFAULT_BITRATE;
|
|
|
|
mux->packet_size = GST_BASE_TS_MUX_NORMAL_PACKET_LENGTH;
|
|
mux->automatic_alignment = 0;
|
|
}
|