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gst/base/: Added is_seekable to BaseSrc
Original commit message from CVS: * gst/base/Makefile.am: * gst/base/gstbasesrc.c: (gst_basesrc_is_seekable), (gst_basesrc_start): * gst/base/gstbasesrc.h: * gst/base/gstpushsrc.c: (gst_pushsrc_get_type), (gst_pushsrc_base_init), (gst_pushsrc_class_init), (gst_pushsrc_init), (gst_pushsrc_create): * gst/base/gstpushsrc.h: Added is_seekable to BaseSrc Added simple PushSrc.
This commit is contained in:
Wim Taymans
parent
c9aaf4663f
commit
88d6683316
11 changed files with 471 additions and 14 deletions
13
ChangeLog
13
ChangeLog
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@ -1,3 +1,16 @@
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2005-05-12 Wim Taymans <wim@fluendo.com>
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* gst/base/Makefile.am:
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* gst/base/gstbasesrc.c: (gst_basesrc_is_seekable),
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(gst_basesrc_start):
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* gst/base/gstbasesrc.h:
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* gst/base/gstpushsrc.c: (gst_pushsrc_get_type),
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(gst_pushsrc_base_init), (gst_pushsrc_class_init),
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(gst_pushsrc_init), (gst_pushsrc_create):
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* gst/base/gstpushsrc.h:
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Added is_seekable to BaseSrc
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Added simple PushSrc.
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2005-05-11 Wim Taymans <wim@fluendo.com>
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* gst/gstelement.c: (gst_element_add_pad), (gst_element_query):
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@ -7,6 +7,7 @@ libgstbase_@GST_MAJORMINOR@_la_SOURCES = \
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gstbasesrc.c \
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gstbasetransform.c \
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gstcollectpads.c \
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gstpushsrc.c \
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gsttypefindhelper.c
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libgstbase_@GST_MAJORMINOR@_la_CFLAGS = $(GST_OBJ_CFLAGS)
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@ -22,5 +23,6 @@ libgstbase_@GST_MAJORMINOR@include_HEADERS = \
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gstbasesrc.h \
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gstbasetransform.h \
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gstcollectpads.h \
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gstpushsrc.h \
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gsttypefindhelper.h
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@ -607,6 +607,22 @@ gst_basesrc_get_size (GstBaseSrc * basesrc, guint64 * size)
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return result;
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}
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static gboolean
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gst_basesrc_is_seekable (GstBaseSrc * basesrc)
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{
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GstBaseSrcClass *bclass;
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bclass = GST_BASESRC_GET_CLASS (basesrc);
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/* check if we can seek */
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if (bclass->is_seekable)
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basesrc->seekable = bclass->is_seekable (basesrc);
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else
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basesrc->seekable = FALSE;
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return basesrc->seekable;
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}
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static gboolean
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gst_basesrc_start (GstBaseSrc * basesrc)
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{
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@ -646,11 +662,8 @@ gst_basesrc_start (GstBaseSrc * basesrc)
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/* we always run to the end */
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basesrc->segment_end = -1;
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/* check if we can seek */
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if (bclass->is_seekable)
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basesrc->seekable = bclass->is_seekable (basesrc);
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else
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basesrc->seekable = FALSE;
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/* check if we can seek, updates ->seekable */
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gst_basesrc_is_seekable (basesrc);
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/* run typefind */
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#if 0
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@ -39,7 +39,7 @@ typedef enum {
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GST_BASESRC_STARTED = GST_ELEMENT_FLAG_LAST,
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GST_BASESRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2
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} GstFileSrcFlags;
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} GstBaseSrcFlags;
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/* base class for random access sources
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*
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@ -52,6 +52,8 @@ typedef enum {
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typedef struct _GstBaseSrc GstBaseSrc;
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typedef struct _GstBaseSrcClass GstBaseSrcClass;
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#define GST_BASESRC_PAD(obj) (GST_BASESRC (obj)->srcpad)
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struct _GstBaseSrc {
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GstElement element;
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@ -104,7 +106,8 @@ struct _GstBaseSrcClass {
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/* notify subclasses of an event */
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gboolean (*event) (GstBaseSrc *src, GstEvent *event);
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/* ask the subclass to create a buffer */
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/* ask the subclass to create a buffer with offset and size */
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GstFlowReturn (*create) (GstBaseSrc *src, guint64 offset, guint size,
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GstBuffer **buf);
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};
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130
gst/base/gstpushsrc.c
Normal file
130
gst/base/gstpushsrc.c
Normal file
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@ -0,0 +1,130 @@
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/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000,2005 Wim Taymans <wim@fluendo.com>
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*
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* gstpushsrc.c:
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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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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include "gstpushsrc.h"
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#include "gsttypefindhelper.h"
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#include <gst/gstmarshal.h>
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GST_DEBUG_CATEGORY_STATIC (gst_pushsrc_debug);
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#define GST_CAT_DEFAULT gst_pushsrc_debug
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/* PushSrc signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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};
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static GstElementClass *parent_class = NULL;
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static void gst_pushsrc_base_init (gpointer g_class);
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static void gst_pushsrc_class_init (GstPushSrcClass * klass);
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static void gst_pushsrc_init (GstPushSrc * src, gpointer g_class);
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GType
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gst_pushsrc_get_type (void)
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{
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static GType pushsrc_type = 0;
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if (!pushsrc_type) {
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static const GTypeInfo pushsrc_info = {
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sizeof (GstPushSrcClass),
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(GBaseInitFunc) gst_pushsrc_base_init,
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NULL,
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(GClassInitFunc) gst_pushsrc_class_init,
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NULL,
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NULL,
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sizeof (GstPushSrc),
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0,
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(GInstanceInitFunc) gst_pushsrc_init,
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};
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pushsrc_type = g_type_register_static (GST_TYPE_BASESRC,
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"GstPushSrc", &pushsrc_info, G_TYPE_FLAG_ABSTRACT);
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}
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return pushsrc_type;
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}
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#if 0
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static const GstEventMask *gst_pushsrc_get_event_mask (GstPad * pad);
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#endif
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static GstFlowReturn gst_pushsrc_create (GstBaseSrc * bsrc, guint64 offset,
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guint length, GstBuffer ** ret);
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static void
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gst_pushsrc_base_init (gpointer g_class)
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{
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GST_DEBUG_CATEGORY_INIT (gst_pushsrc_debug, "pushsrc", 0, "pushsrc element");
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}
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static void
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gst_pushsrc_class_init (GstPushSrcClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseSrcClass *gstbasesrc_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasesrc_class = (GstBaseSrcClass *) klass;
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parent_class = g_type_class_ref (GST_TYPE_BASESRC);
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gstbasesrc_class->create = GST_DEBUG_FUNCPTR (gst_pushsrc_create);
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}
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static void
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gst_pushsrc_init (GstPushSrc * pushsrc, gpointer g_class)
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{
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}
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static GstFlowReturn
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gst_pushsrc_create (GstBaseSrc * bsrc, guint64 offset, guint length,
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GstBuffer ** ret)
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{
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GstFlowReturn fret;
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GstPushSrc *src;
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GstPushSrcClass *pclass;
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src = GST_PUSHSRC (bsrc);
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pclass = GST_PUSHSRC_GET_CLASS (src);
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if (pclass->create)
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fret = pclass->create (src, ret);
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else
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fret = GST_FLOW_ERROR;
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return fret;
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}
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74
gst/base/gstpushsrc.h
Normal file
74
gst/base/gstpushsrc.h
Normal file
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@ -0,0 +1,74 @@
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/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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* 2005 Wim Taymans <wim@fluendo.com>
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*
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* gstpushsrc.h:
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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_PUSHSRC_H__
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#define __GST_PUSHSRC_H__
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#include <gst/gst.h>
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#include <gst/base/gstbasesrc.h>
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G_BEGIN_DECLS
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#define GST_TYPE_PUSHSRC (gst_pushsrc_get_type())
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#define GST_PUSHSRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PUSHSRC,GstPushSrc))
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#define GST_PUSHSRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PUSHSRC,GstPushSrcClass))
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#define GST_PUSHSRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_PUSHSRC, GstPushSrcClass))
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#define GST_IS_PUSHSRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PUSHSRC))
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#define GST_IS_PUSHSRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PUSHSRC))
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/* base class for block based sources
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*
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* This class is mostly usefull for elements that cannot do
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* random access, or at least very slowly. The source usually
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* prefers to push out a fixed size buffer.
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*
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* Classes extending this base class will usually be scheduled
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* in a push based mode. It the peer accepts to operate without
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* offsets and withing the limits of the allowed block size, this
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* class can operate in getrange based mode automatically.
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*
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* The subclass should extend the methods from the baseclass in
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* addition to the create method.
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*
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* Seeking, flushing, scheduling and sync is all handled by this
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* base class.
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*/
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typedef struct _GstPushSrc GstPushSrc;
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typedef struct _GstPushSrcClass GstPushSrcClass;
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struct _GstPushSrc {
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GstBaseSrc parent;
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};
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struct _GstPushSrcClass {
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GstBaseSrcClass parent_class;
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/* ask the subclass to create a buffer */
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GstFlowReturn (*create) (GstPushSrc *src, GstBuffer **buf);
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};
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GType gst_pushsrc_get_type(void);
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G_END_DECLS
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#endif /* __GST_PUSHSRC_H__ */
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@ -7,6 +7,7 @@ libgstbase_@GST_MAJORMINOR@_la_SOURCES = \
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gstbasesrc.c \
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gstbasetransform.c \
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gstcollectpads.c \
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gstpushsrc.c \
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gsttypefindhelper.c
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libgstbase_@GST_MAJORMINOR@_la_CFLAGS = $(GST_OBJ_CFLAGS)
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@ -22,5 +23,6 @@ libgstbase_@GST_MAJORMINOR@include_HEADERS = \
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gstbasesrc.h \
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gstbasetransform.h \
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gstcollectpads.h \
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gstpushsrc.h \
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gsttypefindhelper.h
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@ -607,6 +607,22 @@ gst_basesrc_get_size (GstBaseSrc * basesrc, guint64 * size)
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return result;
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}
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static gboolean
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gst_basesrc_is_seekable (GstBaseSrc * basesrc)
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{
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GstBaseSrcClass *bclass;
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bclass = GST_BASESRC_GET_CLASS (basesrc);
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/* check if we can seek */
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if (bclass->is_seekable)
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basesrc->seekable = bclass->is_seekable (basesrc);
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else
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basesrc->seekable = FALSE;
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return basesrc->seekable;
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}
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static gboolean
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gst_basesrc_start (GstBaseSrc * basesrc)
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{
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@ -646,11 +662,8 @@ gst_basesrc_start (GstBaseSrc * basesrc)
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/* we always run to the end */
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basesrc->segment_end = -1;
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/* check if we can seek */
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if (bclass->is_seekable)
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basesrc->seekable = bclass->is_seekable (basesrc);
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else
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basesrc->seekable = FALSE;
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/* check if we can seek, updates ->seekable */
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gst_basesrc_is_seekable (basesrc);
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/* run typefind */
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#if 0
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|
|
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@ -39,7 +39,7 @@ typedef enum {
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GST_BASESRC_STARTED = GST_ELEMENT_FLAG_LAST,
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GST_BASESRC_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2
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} GstFileSrcFlags;
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} GstBaseSrcFlags;
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/* base class for random access sources
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*
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@ -52,6 +52,8 @@ typedef enum {
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typedef struct _GstBaseSrc GstBaseSrc;
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typedef struct _GstBaseSrcClass GstBaseSrcClass;
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#define GST_BASESRC_PAD(obj) (GST_BASESRC (obj)->srcpad)
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struct _GstBaseSrc {
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GstElement element;
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|
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@ -104,7 +106,8 @@ struct _GstBaseSrcClass {
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|
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/* notify subclasses of an event */
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gboolean (*event) (GstBaseSrc *src, GstEvent *event);
|
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/* ask the subclass to create a buffer */
|
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|
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/* ask the subclass to create a buffer with offset and size */
|
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GstFlowReturn (*create) (GstBaseSrc *src, guint64 offset, guint size,
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GstBuffer **buf);
|
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};
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|
|
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130
libs/gst/base/gstpushsrc.c
Normal file
130
libs/gst/base/gstpushsrc.c
Normal file
|
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@ -0,0 +1,130 @@
|
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/* GStreamer
|
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
||||
* 2000,2005 Wim Taymans <wim@fluendo.com>
|
||||
*
|
||||
* gstpushsrc.c:
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
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#include <stdlib.h>
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#include <string.h>
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|
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#ifdef HAVE_CONFIG_H
|
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# include "config.h"
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#endif
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|
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#include "gstpushsrc.h"
|
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#include "gsttypefindhelper.h"
|
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#include <gst/gstmarshal.h>
|
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|
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GST_DEBUG_CATEGORY_STATIC (gst_pushsrc_debug);
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#define GST_CAT_DEFAULT gst_pushsrc_debug
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|
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/* PushSrc signals and args */
|
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enum
|
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{
|
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/* FILL ME */
|
||||
LAST_SIGNAL
|
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};
|
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|
||||
enum
|
||||
{
|
||||
PROP_0,
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};
|
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|
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static GstElementClass *parent_class = NULL;
|
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|
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static void gst_pushsrc_base_init (gpointer g_class);
|
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static void gst_pushsrc_class_init (GstPushSrcClass * klass);
|
||||
static void gst_pushsrc_init (GstPushSrc * src, gpointer g_class);
|
||||
|
||||
GType
|
||||
gst_pushsrc_get_type (void)
|
||||
{
|
||||
static GType pushsrc_type = 0;
|
||||
|
||||
if (!pushsrc_type) {
|
||||
static const GTypeInfo pushsrc_info = {
|
||||
sizeof (GstPushSrcClass),
|
||||
(GBaseInitFunc) gst_pushsrc_base_init,
|
||||
NULL,
|
||||
(GClassInitFunc) gst_pushsrc_class_init,
|
||||
NULL,
|
||||
NULL,
|
||||
sizeof (GstPushSrc),
|
||||
0,
|
||||
(GInstanceInitFunc) gst_pushsrc_init,
|
||||
};
|
||||
|
||||
pushsrc_type = g_type_register_static (GST_TYPE_BASESRC,
|
||||
"GstPushSrc", &pushsrc_info, G_TYPE_FLAG_ABSTRACT);
|
||||
}
|
||||
return pushsrc_type;
|
||||
}
|
||||
|
||||
#if 0
|
||||
static const GstEventMask *gst_pushsrc_get_event_mask (GstPad * pad);
|
||||
#endif
|
||||
|
||||
static GstFlowReturn gst_pushsrc_create (GstBaseSrc * bsrc, guint64 offset,
|
||||
guint length, GstBuffer ** ret);
|
||||
|
||||
static void
|
||||
gst_pushsrc_base_init (gpointer g_class)
|
||||
{
|
||||
GST_DEBUG_CATEGORY_INIT (gst_pushsrc_debug, "pushsrc", 0, "pushsrc element");
|
||||
}
|
||||
|
||||
static void
|
||||
gst_pushsrc_class_init (GstPushSrcClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class;
|
||||
GstElementClass *gstelement_class;
|
||||
GstBaseSrcClass *gstbasesrc_class;
|
||||
|
||||
gobject_class = (GObjectClass *) klass;
|
||||
gstelement_class = (GstElementClass *) klass;
|
||||
gstbasesrc_class = (GstBaseSrcClass *) klass;
|
||||
|
||||
parent_class = g_type_class_ref (GST_TYPE_BASESRC);
|
||||
|
||||
gstbasesrc_class->create = GST_DEBUG_FUNCPTR (gst_pushsrc_create);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_pushsrc_init (GstPushSrc * pushsrc, gpointer g_class)
|
||||
{
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_pushsrc_create (GstBaseSrc * bsrc, guint64 offset, guint length,
|
||||
GstBuffer ** ret)
|
||||
{
|
||||
GstFlowReturn fret;
|
||||
GstPushSrc *src;
|
||||
GstPushSrcClass *pclass;
|
||||
|
||||
src = GST_PUSHSRC (bsrc);
|
||||
pclass = GST_PUSHSRC_GET_CLASS (src);
|
||||
if (pclass->create)
|
||||
fret = pclass->create (src, ret);
|
||||
else
|
||||
fret = GST_FLOW_ERROR;
|
||||
|
||||
return fret;
|
||||
}
|
||||
74
libs/gst/base/gstpushsrc.h
Normal file
74
libs/gst/base/gstpushsrc.h
Normal file
|
|
@ -0,0 +1,74 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
||||
* 2000 Wim Taymans <wtay@chello.be>
|
||||
* 2005 Wim Taymans <wim@fluendo.com>
|
||||
*
|
||||
* gstpushsrc.h:
|
||||
*
|
||||
* 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_PUSHSRC_H__
|
||||
#define __GST_PUSHSRC_H__
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/base/gstbasesrc.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_PUSHSRC (gst_pushsrc_get_type())
|
||||
#define GST_PUSHSRC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PUSHSRC,GstPushSrc))
|
||||
#define GST_PUSHSRC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PUSHSRC,GstPushSrcClass))
|
||||
#define GST_PUSHSRC_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_PUSHSRC, GstPushSrcClass))
|
||||
#define GST_IS_PUSHSRC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PUSHSRC))
|
||||
#define GST_IS_PUSHSRC_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PUSHSRC))
|
||||
|
||||
/* base class for block based sources
|
||||
*
|
||||
* This class is mostly usefull for elements that cannot do
|
||||
* random access, or at least very slowly. The source usually
|
||||
* prefers to push out a fixed size buffer.
|
||||
*
|
||||
* Classes extending this base class will usually be scheduled
|
||||
* in a push based mode. It the peer accepts to operate without
|
||||
* offsets and withing the limits of the allowed block size, this
|
||||
* class can operate in getrange based mode automatically.
|
||||
*
|
||||
* The subclass should extend the methods from the baseclass in
|
||||
* addition to the create method.
|
||||
*
|
||||
* Seeking, flushing, scheduling and sync is all handled by this
|
||||
* base class.
|
||||
*/
|
||||
typedef struct _GstPushSrc GstPushSrc;
|
||||
typedef struct _GstPushSrcClass GstPushSrcClass;
|
||||
|
||||
struct _GstPushSrc {
|
||||
GstBaseSrc parent;
|
||||
};
|
||||
|
||||
struct _GstPushSrcClass {
|
||||
GstBaseSrcClass parent_class;
|
||||
|
||||
/* ask the subclass to create a buffer */
|
||||
GstFlowReturn (*create) (GstPushSrc *src, GstBuffer **buf);
|
||||
};
|
||||
|
||||
GType gst_pushsrc_get_type(void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_PUSHSRC_H__ */
|
||||
Loading…
Reference in a new issue