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Diffstat (limited to 'gst/mpegdemux/gstmpegtsdemux.h')
| -rw-r--r-- | gst/mpegdemux/gstmpegtsdemux.h | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/gst/mpegdemux/gstmpegtsdemux.h b/gst/mpegdemux/gstmpegtsdemux.h new file mode 100644 index 00000000..b35fb031 --- /dev/null +++ b/gst/mpegdemux/gstmpegtsdemux.h @@ -0,0 +1,224 @@ +/* + * This library is licensed under 2 different licenses and you + * can choose to use it under the terms of either one of them. The + * two licenses are the MPL 1.1 and the LGPL. + * + * MPL: + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/. + * + * Software distributed under the License is distributed on an "AS IS" + * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the + * License for the specific language governing rights and limitations + * under the License. + * + * LGPL: + * + * 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. + * + * The Original Code is Fluendo MPEG Demuxer plugin. + * + * The Initial Developer of the Original Code is Fluendo, S.L. + * Portions created by Fluendo, S.L. are Copyright (C) 2005 + * Fluendo, S.L. All Rights Reserved. + * + * Contributor(s): Wim Taymans <wim@fluendo.com> + */ + +#ifndef __GST_FLUTS_DEMUX_H__ +#define __GST_FLUTS_DEMUX_H__ + +#include <gst/gst.h> +#include <gst/base/gstadapter.h> + +#include "gstmpegdesc.h" +#include "gstpesfilter.h" +#include "gstsectionfilter.h" + +G_BEGIN_DECLS + +#if (POST_10_12) +#define HAVE_LATENCY +#endif + +#define FLUTS_MAX_PID 0x1fff +#define FLUTS_NORMAL_TS_PACKETSIZE 188 +#define FLUTS_M2TS_TS_PACKETSIZE 192 + +#define LENGHT_SYNC_LUT 256 + +#define IS_MPEGTS_SYNC(data) (((data)[0] == 0x47) && \ + (((data)[1] & 0x80) == 0x00) && \ + (((data)[3] & 0x10) == 0x10)) + +#define GST_TYPE_FLUTS_DEMUX (gst_fluts_demux_get_type()) +#define GST_FLUTS_DEMUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),\ + GST_TYPE_FLUTS_DEMUX,GstFluTSDemux)) +#define GST_FLUTS_DEMUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),\ + GST_TYPE_FLUTS_DEMUX,GstFluTSDemuxClass)) +#define GST_FLUTS_DEMUX_GET_CLASS(klass) (G_TYPE_INSTANCE_GET_CLASS((klass),\ + GST_TYPE_FLUTS_DEMUX,GstFluTSDemuxClass)) +#define GST_IS_FLUTS_DEMUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),\ + GST_TYPE_FLUTS_DEMUX)) +#define GST_IS_FLUTS_DEMUX_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),\ + GST_TYPE_FLUTS_DEMUX)) + +typedef struct _GstFluTSStream GstFluTSStream; +typedef struct _GstFluTSPMTEntry GstFluTSPMTEntry; +typedef struct _GstFluTSPMT GstFluTSPMT; +typedef struct _GstFluTSPATEntry GstFluTSPATEntry; +typedef struct _GstFluTSPAT GstFluTSPAT; +typedef struct _GstFluTSDemux GstFluTSDemux; +typedef struct _GstFluTSDemuxClass GstFluTSDemuxClass; + +struct _GstFluTSPMTEntry { + guint16 PID; +}; + +struct _GstFluTSPMT { + guint16 program_number; + guint8 version_number; + gboolean current_next_indicator; + guint8 section_number; + guint8 last_section_number; + guint16 PCR_PID; + guint16 program_info_length; + GstMPEGDescriptor * program_info; + + GArray * entries; +}; + +struct _GstFluTSPATEntry { + guint16 program_number; + guint16 PID; +}; + +struct _GstFluTSPAT { + guint16 transport_stream_id; + guint8 version_number; + gboolean current_next_indicator; + guint8 section_number; + guint8 last_section_number; + + GArray * entries; +}; + +typedef enum _FluTsStreamFlags { + FLUTS_STREAM_FLAG_STREAM_TYPE_UNKNOWN = 0x01, + FLUTS_STREAM_FLAG_PMT_VALID = 0x02, + FLUTS_STREAM_FLAG_IS_VIDEO = 0x04 +} FluTsStreamFlags; + +/* Information associated to a single MPEG stream. */ +struct _GstFluTSStream { + GstFluTSDemux * demux; + + FluTsStreamFlags flags; + + /* PID and type */ + guint16 PID; + guint8 PID_type; + + /* adaptation_field data */ + guint64 last_PCR; + guint64 base_PCR; + guint64 last_OPCR; + guint64 last_PCR_difference; + gboolean discont_PCR; + GstClockTimeDiff discont_difference; + + /* for PAT streams */ + GstFluTSPAT PAT; + + /* for PMT streams */ + GstFluTSPMT PMT; + + /* for CA streams */ + + /* for PAT, PMT, CA and private streams */ + GstSectionFilter section_filter; + + /* for PES streams */ + guint8 id; + guint8 stream_type; + GstPESFilter filter; + GstPad * pad; + GstFlowReturn last_ret; + GstMPEGDescriptor *ES_info; + /* needed because 33bit mpeg timestamps wrap around every (approx) 26.5 hrs */ + GstClockTimeDiff base_time; + GstClockTime last_time; + /* pid of PMT that this stream belongs to */ + guint16 PMT_pid; +}; + +struct _GstFluTSDemux { + GstElement parent; + + /* properties */ + gboolean check_crc; + + /* sink pad and adapter */ + GstPad * sinkpad; + GstAdapter * adapter; + guint8 ** sync_lut; + + /* current PMT PID */ + guint16 current_PMT; + + /* Array of FLUTS_MAX_PID + 1 stream entries */ + GstFluTSStream ** streams; + /* Array to perform pmts checks at gst_fluts_demux_parse_adaptation_field */ + gboolean pmts_checked[FLUTS_MAX_PID + 1]; + + /* Array of Elementary Stream pids for ts with PMT */ + guint16 * elementary_pids; + guint nb_elementary_pids; + + /* Program number to use */ + gint program_number; + + /* indicates that we need to close our pad group, because we've added + * at least one pad */ + gboolean need_no_more_pads; + guint16 packetsize; + gboolean m2ts_mode; +#ifdef HAVE_LATENCY + /* clocking */ + GstClock * clock; + GstClockTime clock_base; +#endif +}; + +struct _GstFluTSDemuxClass { + GstElementClass parent_class; + + GstPadTemplate * sink_template; + GstPadTemplate * video_template; + GstPadTemplate * audio_template; + GstPadTemplate * private_template; +}; + +GType gst_fluts_demux_get_type (void); + +gboolean gst_fluts_demux_plugin_init (GstPlugin *plugin); + +G_END_DECLS + +#endif /* __GST_FLUTS_DEMUX_H__ */ |