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ad6ea8fbe9
Basic version with only the system header and the program stream map. An advanced version could include codec-specific bits like SPS/PPS too. This is useful in connection with e.g. multifilesink to make sure new files always start with the stream headers.
120 lines
4.1 KiB
C
120 lines
4.1 KiB
C
/* MPEG-PS muxer plugin for GStreamer
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* Copyright 2008 Lin YANG <oxcsnicho@gmail.com>
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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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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#ifndef __PSMUX_H__
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#define __PSMUX_H__
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#include <glib.h>
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#include "psmuxcommon.h"
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#include "psmuxstream.h"
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G_BEGIN_DECLS
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#define PSMUX_MAX_ES_INFO_LENGTH ((1 << 12) - 1)
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typedef gboolean (*PsMuxWriteFunc) (guint8 *data, guint len, void *user_data);
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struct PsMux {
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GList *streams; /* PsMuxStream* array of all streams */
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guint nb_streams;
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guint nb_private_streams;
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PsMuxStreamIdInfo id_info; /* carrying the info which ids are used */
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/* timestamps: pts */
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GstClockTime pts;
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guint32 pes_cnt; /* # of pes that has been created */
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guint16 pes_max_payload; /* maximum payload size in pes packets */
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guint64 bit_size; /* accumulated bit size of processed data */
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guint bit_rate; /* bit rate */
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GstClockTime bit_pts; /* last time the bit_rate is updated */
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guint pack_hdr_freq; /* PS pack header frequency */
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GstClockTime pack_hdr_pts; /* last time a pack header is written */
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guint sys_hdr_freq; /* system header frequency */
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GstClockTime sys_hdr_pts; /* last time a system header is written */
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guint psm_freq; /* program stream map frequency */
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GstClockTime psm_pts; /* last time a psm is written */
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guint8 packet_buf[PSMUX_MAX_PACKET_LEN];
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guint packet_bytes_written; /* # of bytes written in the buf */
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PsMuxWriteFunc write_func;
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void *write_func_data;
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/* Scratch space for writing ES_info descriptors */
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guint8 es_info_buf[PSMUX_MAX_ES_INFO_LENGTH];
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/* bounds in system header */
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guint8 audio_bound;
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guint8 video_bound;
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guint32 rate_bound;
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/* stream headers */
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GstBuffer *sys_header;
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GstBuffer *psm;
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};
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/* create/free new muxer session */
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PsMux * psmux_new (void);
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void psmux_free (PsMux *mux);
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/* Setting muxing session properties */
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void psmux_set_write_func (PsMux *mux, PsMuxWriteFunc func, void *user_data);
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/* stream management */
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PsMuxStream * psmux_create_stream (PsMux *mux, PsMuxStreamType stream_type);
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/* writing stuff */
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gboolean psmux_write_stream_packet (PsMux *mux, PsMuxStream *stream);
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gboolean psmux_write_end_code (PsMux *mux);
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GList * psmux_get_stream_headers (PsMux *mux);
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G_END_DECLS
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#endif
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