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ea0d666d11
This decreases the number of buffers held on each pad by one, eliminating next_buffer. Simplifies the logic by relying solely on CollectPads to let us know when a pad is in EOS. As a side benefit, the collect pads related code is structured more like other CollectPad users. The previous code would occasionally mark the wrong pad as EOS, causing the code to get in a state where all the streams were finished, but EOS hadn't been sent to the source pad.
145 lines
4.3 KiB
C
145 lines
4.3 KiB
C
/* OGG muxer plugin for GStreamer
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* Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
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* Copyright (C) 2006 Thomas Vander Stichele <thomas at apestaart dot org>
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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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#ifndef __GST_OGG_MUX_H__
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#define __GST_OGGEMUX_H__
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#include <ogg/ogg.h>
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#include <gst/gst.h>
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#include <gst/base/gstcollectpads.h>
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#include "gstoggstream.h"
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G_BEGIN_DECLS
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#define GST_TYPE_OGG_MUX (gst_ogg_mux_get_type())
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#define GST_OGG_MUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OGG_MUX, GstOggMux))
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#define GST_OGG_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OGG_MUX, GstOggMux))
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#define GST_IS_OGG_MUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OGG_MUX))
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#define GST_IS_OGG_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OGG_MUX))
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typedef struct _GstOggMux GstOggMux;
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typedef struct _GstOggMuxClass GstOggMuxClass;
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typedef enum
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{
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GST_OGG_PAD_STATE_CONTROL = 0,
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GST_OGG_PAD_STATE_DATA = 1
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}
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GstOggPadState;
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/* all information needed for one ogg stream */
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typedef struct
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{
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GstCollectData collect; /* we extend the CollectData */
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GstOggStream map;
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gboolean have_type;
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GstSegment segment;
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GstBuffer *buffer; /* the first waiting buffer for the pad */
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gint64 packetno; /* number of next packet */
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gint64 pageno; /* number of next page */
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guint64 duration; /* duration of current page */
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gboolean eos;
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gint64 offset;
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GstClockTime timestamp; /* timestamp of the first packet on the next
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* page to be dequeued */
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GstClockTime timestamp_end; /* end timestamp of last complete packet on
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the next page to be dequeued */
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GstClockTime gp_time; /* time corresponding to the gp value of the
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last complete packet on the next page to be
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dequeued */
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GstOggPadState state; /* state of the pad */
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GQueue *pagebuffers; /* List of pages in buffers ready for pushing */
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gboolean new_page; /* starting a new page */
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gboolean first_delta; /* was the first packet in the page a delta */
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gboolean prev_delta; /* was the previous buffer a delta frame */
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gboolean data_pushed; /* whether we pushed data already */
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gint64 next_granule; /* expected granule of next buffer ts */
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gint64 keyframe_granule; /* granule of last preceding keyframe */
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GstPadEventFunction collect_event;
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gboolean always_flush_page;
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}
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GstOggPadData;
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/**
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* GstOggMux:
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*
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* The ogg muxer object structure.
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*/
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struct _GstOggMux
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{
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GstElement element;
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/* source pad */
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GstPad *srcpad;
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/* sinkpads */
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GstCollectPads *collect;
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/* number of pads which have not received EOS */
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gint active_pads;
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/* the pad we are currently using to fill a page */
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GstOggPadData *pulling;
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/* next timestamp for the page */
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GstClockTime next_ts;
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/* Last timestamp actually output on src pad */
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GstClockTime last_ts;
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/* offset in stream */
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guint64 offset;
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/* need_headers */
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gboolean need_headers;
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guint64 max_delay;
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guint64 max_page_delay;
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guint64 max_tolerance;
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GstOggPadData *delta_pad; /* when a delta frame is detected on a stream, we mark
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pages as delta frames up to the page that has the
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keyframe */
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};
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struct _GstOggMuxClass
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{
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GstElementClass parent_class;
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};
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GType gst_ogg_mux_get_type (void);
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gboolean gst_ogg_mux_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_OGG_MUX_H__ */
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