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/* GStreamer mplex (mjpegtools) wrapper
* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* gstmplex.hh: gstreamer mplex wrapper
*
* 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.
*/
#ifndef __GST_MPLEX_H__
#define __GST_MPLEX_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include <multiplexor.hpp>
#include "gstmplexibitstream.hh"
#include "gstmplexjob.hh"
G_BEGIN_DECLS
#define GST_TYPE_MPLEX \
(gst_mplex_get_type ())
#define GST_MPLEX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MPLEX, GstMplex))
#define GST_MPLEX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MPLEX, GstMplex))
#define GST_IS_MPLEX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MPLEX))
#define GST_IS_MPLEX_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MPLEX))
GST_DEBUG_CATEGORY_EXTERN (mplex_debug);
#define GST_CAT_DEFAULT mplex_debug
#define GST_MPLEX_MUTEX_LOCK(m) G_STMT_START { \
GST_LOG_OBJECT (m, "locking tlock from thread %p", g_thread_self ()); \
g_mutex_lock ((m)->tlock); \
GST_LOG_OBJECT (m, "locked tlock from thread %p", g_thread_self ()); \
} G_STMT_END
#define GST_MPLEX_MUTEX_UNLOCK(m) G_STMT_START { \
GST_LOG_OBJECT (m, "unlocking tlock from thread %p", g_thread_self ()); \
g_mutex_unlock ((m)->tlock); \
} G_STMT_END
#define GST_MPLEX_WAIT(m, p) G_STMT_START { \
GST_LOG_OBJECT (m, "thread %p waiting", g_thread_self ()); \
g_cond_wait ((p)->cond, (m)->tlock); \
} G_STMT_END
#define GST_MPLEX_SIGNAL(m, p) G_STMT_START { \
GST_LOG_OBJECT (m, "signalling from thread %p", g_thread_self ()); \
g_cond_signal ((p)->cond); \
} G_STMT_END
#define GST_MPLEX_SIGNAL_ALL(m) G_STMT_START { \
GST_LOG_OBJECT (m, "signalling all from thread %p", g_thread_self ()); \
GSList *walk = m->pads; \
while (walk) { \
GST_MPLEX_SIGNAL (m, (GstMplexPad *) walk->data); \
walk = walk->next; \
} \
} G_STMT_END
typedef struct _GstMplexPad
{
/* associated pad */
GstPad *pad;
/* with mplex TLOCK */
/* adapter collecting buffers for this pad */
GstAdapter *adapter;
/* no more to expect on this pad */
gboolean eos;
/* signals counterpart thread to have a look */
GCond *cond;
/* amount needed by mplex on this stream */
guint needed;
/* bitstream for this pad */
GstMplexIBitStream *bs;
} GstMplexPad;
typedef struct _GstMplex {
GstElement parent;
/* pads */
GSList *pads;
GstPad *srcpad;
guint num_apads, num_vpads;
/* options wrapper */
GstMplexJob *job;
/* lock for syncing */
GMutex *tlock;
/* with TLOCK */
/* muxer writer generated eos */
gboolean eos;
/* flowreturn obtained by muxer task */
GstFlowReturn srcresult;
} GstMplex;
typedef struct _GstMplexClass {
GstElementClass parent;
} GstMplexClass;
GType gst_mplex_get_type (void);
G_END_DECLS
#endif /* __GST_MPLEX_H__ */
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