mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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14a56b6964
Collectpads assumes that it can pass any buffer to the clip function for adjustment, some of which are artificially injected - so don't adjust global timestamp tracking there. Instead, only adjust the buffer timestamps and use them directly in the collection function. Fixes https://bugzilla.gnome.org/show_bug.cgi?id=698748
219 lines
6.8 KiB
C
219 lines
6.8 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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* 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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#ifndef __MPEGTSMUX_H__
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#define __MPEGTSMUX_H__
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#include <gst/gst.h>
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#include <gst/base/gstcollectpads.h>
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#include <gst/base/gstadapter.h>
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G_BEGIN_DECLS
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#include <tsmux/tsmux.h>
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#define GST_TYPE_MPEG_TSMUX (mpegtsmux_get_type())
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#define GST_MPEG_TSMUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_MPEG_TSMUX, MpegTsMux))
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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 MPEGTIME_TO_GSTTIME(time) (gst_util_uint64_scale ((time), \
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GST_MSECOND/10, CLOCK_BASE))
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#define GSTTIME_TO_MPEGTIME(time) (gst_util_uint64_scale ((time), \
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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 NORMAL_TS_PACKET_LENGTH 188
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#define M2TS_PACKET_LENGTH 192
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#define MAX_PROG_NUMBER 32
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#define DEFAULT_PROG_ID 0
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typedef struct MpegTsMux MpegTsMux;
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typedef struct MpegTsMuxClass MpegTsMuxClass;
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typedef struct MpegTsPadData MpegTsPadData;
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typedef GstBuffer * (*MpegTsPadDataPrepareFunction) (GstBuffer * buf,
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MpegTsPadData * data, MpegTsMux * mux);
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typedef void (*MpegTsPadDataFreePrepareDataFunction) (gpointer prepare_data);
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struct MpegTsMux {
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GstElement parent;
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GstPad *srcpad;
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GstCollectPads *collect;
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TsMux *tsmux;
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TsMuxProgram *programs[MAX_PROG_NUMBER];
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/* properties */
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gboolean m2ts_mode;
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GstStructure *prog_map;
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guint pat_interval;
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guint pmt_interval;
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gint alignment;
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/* state */
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gboolean first;
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GstClockTime pending_key_unit_ts;
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GstEvent *force_key_unit_event;
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/* write callback handling/state */
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GstFlowReturn last_flow_ret;
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GList *streamheader;
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gboolean streamheader_sent;
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gboolean is_delta;
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GstClockTime last_ts;
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/* m2ts specific */
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gint64 previous_pcr;
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gint64 previous_offset;
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gint64 pcr_rate_num;
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gint64 pcr_rate_den;
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GstAdapter *adapter;
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/* output buffer aggregation */
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GstAdapter *out_adapter;
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GstBuffer *out_buffer;
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#if 0
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/* SPN/PTS index handling */
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GstIndex *element_index;
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gint spn_count;
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#endif
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};
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struct MpegTsMuxClass {
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GstElementClass parent_class;
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};
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#define MPEG_TS_PAD_DATA(data) ((MpegTsPadData *)(data))
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struct MpegTsPadData {
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/* parent */
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GstCollectData collect;
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gint pid;
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TsMuxStream *stream;
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/* most recent valid TS for this stream */
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GstClockTime min_dts;
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#if 0
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/* (optional) index writing */
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gint element_index_writer_id;
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#endif
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/* optional codec data available in the caps */
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GstBuffer *codec_data;
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/* Opaque data pointer to a structure used by the prepare function */
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gpointer prepare_data;
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/* handler to prepare input data */
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MpegTsPadDataPrepareFunction prepare_func;
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/* handler to free the private data */
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MpegTsPadDataFreePrepareDataFunction free_func;
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/* program id == idx to which it is attached to (not program pid) */
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gint prog_id;
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/* program this stream belongs to == mux->programs[prog_id] */
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TsMuxProgram *prog;
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gchar *language;
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};
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GType mpegtsmux_get_type (void);
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G_END_DECLS
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#endif
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