mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-04 05:35:53 +00:00
3c22fb611b
Increased performance doing pull_range in blocks of 32Kb instead of 4Kb. Caching the value of gst_adapter_available instead of calling it 3 times. Added some comments with the header descriptions. Peek enough data to avoid a corner case where could be readed data outside the buffer. Speed up some more inlining some functions and keeping another stream pointer list to be used as iterator. Sprinkle branch prediction macros accross the code. Handling the seeking with flush in pull mode in the proper way.
169 lines
4.6 KiB
C
169 lines
4.6 KiB
C
/*
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* This library is licensed under 2 different licenses and you
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* can choose to use it under the terms of either one of them. The
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* two licenses are the MPL 1.1 and the LGPL.
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* The Original Code is Fluendo MPEG Demuxer plugin.
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*
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* The Initial Developer of the Original Code is Fluendo, S.L.
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* Portions created by Fluendo, S.L. are Copyright (C) 2005
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* Fluendo, S.L. All Rights Reserved.
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*
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* Contributor(s): Wim Taymans <wim@fluendo.com>
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*/
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#ifndef __GST_FLUPS_DEMUX_H__
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#define __GST_FLUPS_DEMUX_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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#include "gstpesfilter.h"
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G_BEGIN_DECLS
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#define GST_TYPE_FLUPS_DEMUX (gst_flups_demux_get_type())
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#define GST_FLUPS_DEMUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FLUPS_DEMUX,GstFluPSDemux))
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#define GST_FLUPS_DEMUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FLUPS_DEMUX,GstFluPSDemuxClass))
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#define GST_FLUPS_DEMUX_GET_CLASS(klass) (G_TYPE_INSTANCE_GET_CLASS((klass),GST_TYPE_FLUPS_DEMUX,GstFluPSDemuxClass))
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#define GST_IS_FLUPS_DEMUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FLUPS_DEMUX))
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#define GST_IS_FLUPS_DEMUX_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FLUPS_DEMUX))
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typedef struct _GstFluPSStream GstFluPSStream;
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typedef struct _GstFluPSDemux GstFluPSDemux;
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typedef struct _GstFluPSDemuxClass GstFluPSDemuxClass;
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#define GST_FLUPS_DEMUX_MAX_STREAMS 256
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#define GST_FLUPS_DEMUX_MAX_PSM 256
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typedef enum
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{
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GST_FLUPS_DEMUX_SYNC_AUTO = 0,
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GST_FLUPS_DEMUX_SYNC_SCR = 1,
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GST_FLUPS_DEMUX_SYNC_DTS = 2
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} GstFluPSDemuxSync;
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typedef enum
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{
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STATE_FLUPS_DEMUX_NEED_SYNC,
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STATE_FLUPS_DEMUX_SYNCED,
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STATE_FLUPS_DEMUX_NEED_MORE_DATA,
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} GstFluPSDemuxState;
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/* Information associated with a single FluPS stream. */
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struct _GstFluPSStream
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{
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GstPad *pad;
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gint id;
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gint type;
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gint size_bound;
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GstClockTime segment_thresh;
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GstClockTime last_seg_start;
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GstClockTime last_ts;
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gboolean discont;
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gboolean notlinked;
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gboolean need_segment;
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};
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struct _GstFluPSDemux
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{
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GstElement parent;
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GstPad *sinkpad;
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gboolean random_access; /* If we operate in pull mode */
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gboolean flushing;
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GstAdapter *adapter;
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GstAdapter *rev_adapter;
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guint64 adapter_offset;
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guint32 last_sync_code;
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GstPESFilter filter;
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gint64 mux_rate;
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guint64 first_scr;
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guint64 last_scr;
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guint64 first_dts;
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guint64 base_time;
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guint64 current_scr;
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guint64 next_scr;
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guint64 bytes_since_scr;
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gint64 scr_adjust;
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guint64 scr_rate_n;
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guint64 scr_rate_d;
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guint64 first_scr_offset;
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guint64 last_scr_offset;
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guint64 cur_scr_offset;
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guint64 first_pts;
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guint64 last_pts;
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gint16 psm[GST_FLUPS_DEMUX_MAX_PSM];
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GstSegment sink_segment;
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GstSegment src_segment;
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/* stream output */
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GstFluPSStream *current_stream;
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guint64 next_pts;
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guint64 next_dts;
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GstFluPSStream **streams;
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GstFluPSStream **streams_found;
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gint found_count;
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gboolean need_no_more_pads;
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/* Indicates an MPEG-2 stream */
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gboolean is_mpeg2_pack;
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/* Language codes event is stored when a dvd-lang-codes
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* custom event arrives from upstream */
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GstEvent *lang_codes;
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};
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struct _GstFluPSDemuxClass
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{
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GstElementClass parent_class;
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GstPadTemplate *sink_template;
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GstPadTemplate *video_template;
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GstPadTemplate *audio_template;
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GstPadTemplate *subpicture_template;
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GstPadTemplate *private_template;
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};
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GType gst_flups_demux_get_type (void);
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gboolean gst_flups_demux_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_FLUPS_DEMUX_H__ */
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