mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-30 04:00:37 +00:00
122 lines
4 KiB
C++
122 lines
4 KiB
C++
/* 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, 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__ */
|