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268 lines
9.1 KiB
C
268 lines
9.1 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 __BASETSMUX_H__
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#define __BASETSMUX_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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#include <gst/base/gstaggregator.h>
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G_BEGIN_DECLS
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#include "tsmux/tsmux.h"
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#define GST_TYPE_BASE_TS_MUX_PAD (gst_base_ts_mux_pad_get_type())
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#define GST_BASE_TS_MUX_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_TS_MUX_PAD, GstBaseTsMuxPad))
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#define GST_BASE_TS_MUX_PAD_CAST(obj) ((GstBaseTsMuxPad *)(obj))
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#define GST_BASE_TS_MUX_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_TS_MUX_PAD, GstBaseTsMuxPadClass))
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#define GST_IS_BASE_TS_MUX_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_TS_MUX_PAD))
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#define GST_IS_BASE_TS_MUX_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_TS_MUX_PAD))
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#define GST_BASE_TS_MUX_PAD_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_TS_MUX_PAD,GstBaseTsMuxPadClass))
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typedef struct _GstBaseTsMuxPad GstBaseTsMuxPad;
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typedef struct _GstBaseTsMuxPadClass GstBaseTsMuxPadClass;
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typedef struct _GstBaseTsMuxPadPrivate GstBaseTsMuxPadPrivate;
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typedef struct GstBaseTsMux GstBaseTsMux;
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typedef struct GstBaseTsMuxClass GstBaseTsMuxClass;
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typedef struct GstBaseTsPadData GstBaseTsPadData;
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typedef GstBuffer * (*GstBaseTsMuxPadPrepareFunction) (GstBuffer * buf,
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GstBaseTsMuxPad * data, GstBaseTsMux * mux);
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typedef void (*GstBaseTsMuxPadFreePrepareDataFunction) (gpointer prepare_data);
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struct _GstBaseTsMuxPad
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{
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GstAggregatorPad parent;
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gint pid;
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TsMuxStream *stream;
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/* most recent DTS */
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gint64 dts;
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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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GstBaseTsMuxPadPrepareFunction prepare_func;
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/* handler to free the private data */
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GstBaseTsMuxPadFreePrepareDataFunction free_func;
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/* program id 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 */
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TsMuxProgram *prog;
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gchar *language;
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};
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struct _GstBaseTsMuxPadClass
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{
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GstAggregatorPadClass parent_class;
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};
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GType gst_base_ts_mux_pad_get_type (void);
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#define GST_TYPE_BASE_TS_MUX (gst_base_ts_mux_get_type())
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#define GST_BASE_TS_MUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_BASE_TS_MUX, GstBaseTsMux))
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#define GST_BASE_TS_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_BASE_TS_MUX, GstBaseTsMuxClass))
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#define GST_BASE_TS_MUX_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_BASE_TS_MUX,GstBaseTsMuxClass))
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#define GST_BASE_TS_MUX_NORMAL_PACKET_LENGTH 188
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struct GstBaseTsMux {
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GstAggregator parent;
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TsMux *tsmux;
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GHashTable *programs;
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/* properties */
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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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guint si_interval;
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guint64 bitrate;
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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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GQueue streamheader;
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gboolean streamheader_sent;
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gboolean is_delta;
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gboolean is_header;
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GstClockTime last_ts;
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gsize packet_size;
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gsize automatic_alignment;
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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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};
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/**
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* GstBaseTsMuxClass:
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* @create_ts_mux: Optional.
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* Called in order to create the #TsMux object.
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* @handle_media_type: Optional.
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* Called in order to determine the stream-type for a given
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* @media_type (eg. video/x-h264).
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* @allocate_packet: Optional.
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* Called when the underlying #TsMux object needs a packet
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* to write into.
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* @output_packet: Optional.
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* Called when the underlying #TsMux object has a packet
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* ready to output.
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* @reset: Optional.
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* Called when the subclass needs to reset.
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* @drain: Optional.
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* Called at EOS, if the subclass has data it needs to drain.
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*/
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struct GstBaseTsMuxClass {
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GstAggregatorClass parent_class;
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TsMux * (*create_ts_mux) (GstBaseTsMux *mux);
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guint (*handle_media_type) (GstBaseTsMux *mux, const gchar *media_type, GstBaseTsMuxPad * pad);
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void (*allocate_packet) (GstBaseTsMux *mux, GstBuffer **buffer);
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gboolean (*output_packet) (GstBaseTsMux *mux, GstBuffer *buffer, gint64 new_pcr);
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void (*reset) (GstBaseTsMux *mux);
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gboolean (*drain) (GstBaseTsMux *mux);
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};
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void gst_base_ts_mux_set_packet_size (GstBaseTsMux *mux, gsize size);
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void gst_base_ts_mux_set_automatic_alignment (GstBaseTsMux *mux, gsize alignment);
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typedef GstBuffer * (*GstBaseTsPadDataPrepareFunction) (GstBuffer * buf,
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GstBaseTsPadData * data, GstBaseTsMux * mux);
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typedef void (*GstBaseTsPadDataFreePrepareDataFunction) (gpointer prepare_data);
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struct GstBaseTsPadData {
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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 DTS */
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gint64 dts;
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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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GstBaseTsPadDataPrepareFunction prepare_func;
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/* handler to free the private data */
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GstBaseTsPadDataFreePrepareDataFunction free_func;
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/* program id 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 */
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TsMuxProgram *prog;
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gchar *language;
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};
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GType gst_base_ts_mux_get_type (void);
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G_END_DECLS
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#endif
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