mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-30 21:51:09 +00:00
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
|
|
* Copyright 2008 Lin YANG <oxcsnicho@gmail.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
/*
|
|
* Unless otherwise indicated, Source Code is licensed under MIT license.
|
|
* See further explanation attached in License Statement (distributed in the file
|
|
* LICENSE).
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
* this software and associated documentation files (the "Software"), to deal in
|
|
* the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is furnished to do
|
|
* so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all
|
|
* copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
|
|
|
|
#ifndef __PSMUX_H__
|
|
#define __PSMUX_H__
|
|
|
|
#include <glib.h>
|
|
|
|
#include "psmuxcommon.h"
|
|
#include "psmuxstream.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define PSMUX_MAX_ES_INFO_LENGTH ((1 << 12) - 1)
|
|
|
|
typedef gboolean (*PsMuxWriteFunc) (guint8 *data, guint len, void *user_data);
|
|
|
|
struct PsMux {
|
|
GList *streams; /* PsMuxStream* array of all streams */
|
|
guint nb_streams;
|
|
guint nb_private_streams;
|
|
PsMuxStreamIdInfo id_info; /* carrying the info which ids are used */
|
|
|
|
/* timestamps: pts */
|
|
GstClockTime pts;
|
|
|
|
guint32 pes_cnt; /* # of pes that has been created */
|
|
guint16 pes_max_payload; /* maximum payload size in pes packets */
|
|
|
|
guint64 bit_size; /* accumulated bit size of processed data */
|
|
guint bit_rate; /* bit rate */
|
|
GstClockTime bit_pts; /* last time the bit_rate is updated */
|
|
|
|
guint pack_hdr_freq; /* PS pack header frequency */
|
|
GstClockTime pack_hdr_pts; /* last time a pack header is written */
|
|
|
|
guint sys_hdr_freq; /* system header frequency */
|
|
GstClockTime sys_hdr_pts; /* last time a system header is written */
|
|
|
|
guint psm_freq; /* program stream map frequency */
|
|
GstClockTime psm_pts; /* last time a psm is written */
|
|
|
|
guint8 packet_buf[PSMUX_MAX_PACKET_LEN];
|
|
guint packet_bytes_written; /* # of bytes written in the buf */
|
|
PsMuxWriteFunc write_func;
|
|
void *write_func_data;
|
|
|
|
/* Scratch space for writing ES_info descriptors */
|
|
guint8 es_info_buf[PSMUX_MAX_ES_INFO_LENGTH];
|
|
|
|
/* bounds in system header */
|
|
guint8 audio_bound;
|
|
guint8 video_bound;
|
|
guint32 rate_bound;
|
|
|
|
/* stream headers */
|
|
GstBuffer *sys_header;
|
|
GstBuffer *psm;
|
|
};
|
|
|
|
/* create/free new muxer session */
|
|
PsMux * psmux_new (void);
|
|
void psmux_free (PsMux *mux);
|
|
|
|
/* Setting muxing session properties */
|
|
void psmux_set_write_func (PsMux *mux, PsMuxWriteFunc func, void *user_data);
|
|
|
|
/* stream management */
|
|
PsMuxStream * psmux_create_stream (PsMux *mux, PsMuxStreamType stream_type);
|
|
|
|
/* writing stuff */
|
|
gboolean psmux_write_stream_packet (PsMux *mux, PsMuxStream *stream);
|
|
gboolean psmux_write_end_code (PsMux *mux);
|
|
|
|
GList * psmux_get_stream_headers (PsMux *mux);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|