mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-14 05:12:09 +00:00
232 lines
7.5 KiB
C
232 lines
7.5 KiB
C
/* GStreamer
|
|
* Copyright (C) 2007 David Schleef <ds@schleef.org>
|
|
*
|
|
* 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_APP_SRC_H_
|
|
#define _GST_APP_SRC_H_
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstpushsrc.h>
|
|
#include <gst/app/app-prelude.h>
|
|
#include <gst/app/app-enumtypes.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_APP_SRC \
|
|
(gst_app_src_get_type())
|
|
#define GST_APP_SRC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_APP_SRC,GstAppSrc))
|
|
#define GST_APP_SRC_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_APP_SRC,GstAppSrcClass))
|
|
#define GST_IS_APP_SRC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_APP_SRC))
|
|
#define GST_IS_APP_SRC_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_APP_SRC))
|
|
#define GST_APP_SRC_CAST(obj) \
|
|
((GstAppSrc*)(obj))
|
|
|
|
typedef struct _GstAppSrc GstAppSrc;
|
|
typedef struct _GstAppSrcClass GstAppSrcClass;
|
|
typedef struct _GstAppSrcPrivate GstAppSrcPrivate;
|
|
|
|
/* FIXME 2.0: Make the instance/class struct private */
|
|
|
|
/**
|
|
* GstAppSrcCallbacks: (skip)
|
|
* @need_data: Called when the appsrc needs more data. A buffer or EOS should be
|
|
* pushed to appsrc from this thread or another thread. @length is just a hint
|
|
* and when it is set to -1, any number of bytes can be pushed into @appsrc.
|
|
* @enough_data: Called when appsrc has enough data. It is recommended that the
|
|
* application stops calling push-buffer until the need_data callback is
|
|
* emitted again to avoid excessive buffer queueing.
|
|
* @seek_data: Called when a seek should be performed to the offset.
|
|
* The next push-buffer should produce buffers from the new @offset.
|
|
* This callback is only called for seekable stream types.
|
|
*
|
|
* A set of callbacks that can be installed on the appsrc with
|
|
* gst_app_src_set_callbacks().
|
|
*/
|
|
typedef struct {
|
|
void (*need_data) (GstAppSrc *src, guint length, gpointer user_data);
|
|
void (*enough_data) (GstAppSrc *src, gpointer user_data);
|
|
gboolean (*seek_data) (GstAppSrc *src, guint64 offset, gpointer user_data);
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
} GstAppSrcCallbacks;
|
|
|
|
/**
|
|
* GstAppStreamType:
|
|
* @GST_APP_STREAM_TYPE_STREAM: No seeking is supported in the stream, such as a
|
|
* live stream.
|
|
* @GST_APP_STREAM_TYPE_SEEKABLE: The stream is seekable but seeking might not
|
|
* be very fast, such as data from a webserver.
|
|
* @GST_APP_STREAM_TYPE_RANDOM_ACCESS: The stream is seekable and seeking is fast,
|
|
* such as in a local file.
|
|
*
|
|
* The stream type.
|
|
*/
|
|
typedef enum
|
|
{
|
|
GST_APP_STREAM_TYPE_STREAM,
|
|
GST_APP_STREAM_TYPE_SEEKABLE,
|
|
GST_APP_STREAM_TYPE_RANDOM_ACCESS
|
|
} GstAppStreamType;
|
|
|
|
/**
|
|
* GstAppLeakyType:
|
|
* @GST_APP_LEAKY_TYPE_NONE: Not Leaky
|
|
* @GST_APP_LEAKY_TYPE_UPSTREAM: Leaky on upstream (new buffers)
|
|
* @GST_APP_LEAKY_TYPE_DOWNSTREAM: Leaky on downstream (old buffers)
|
|
*
|
|
* Buffer dropping scheme to avoid the element's internal queue to block when
|
|
* full.
|
|
*
|
|
* Since: 1.20
|
|
*/
|
|
typedef enum {
|
|
GST_APP_LEAKY_TYPE_NONE,
|
|
GST_APP_LEAKY_TYPE_UPSTREAM,
|
|
GST_APP_LEAKY_TYPE_DOWNSTREAM
|
|
} GstAppLeakyType;
|
|
|
|
struct _GstAppSrc
|
|
{
|
|
GstBaseSrc basesrc;
|
|
|
|
/*< private >*/
|
|
GstAppSrcPrivate *priv;
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING];
|
|
};
|
|
|
|
struct _GstAppSrcClass
|
|
{
|
|
GstBaseSrcClass basesrc_class;
|
|
|
|
/* signals */
|
|
void (*need_data) (GstAppSrc *appsrc, guint length);
|
|
void (*enough_data) (GstAppSrc *appsrc);
|
|
gboolean (*seek_data) (GstAppSrc *appsrc, guint64 offset);
|
|
|
|
/* actions */
|
|
GstFlowReturn (*push_buffer) (GstAppSrc *appsrc, GstBuffer *buffer);
|
|
GstFlowReturn (*end_of_stream) (GstAppSrc *appsrc);
|
|
GstFlowReturn (*push_sample) (GstAppSrc *appsrc, GstSample *sample);
|
|
GstFlowReturn (*push_buffer_list) (GstAppSrc *appsrc, GstBufferList *buffer_list);
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING-2];
|
|
};
|
|
|
|
GST_APP_API
|
|
GType gst_app_src_get_type (void);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_caps (GstAppSrc *appsrc, const GstCaps *caps);
|
|
|
|
GST_APP_API
|
|
GstCaps* gst_app_src_get_caps (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_size (GstAppSrc *appsrc, gint64 size);
|
|
|
|
GST_APP_API
|
|
gint64 gst_app_src_get_size (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_duration (GstAppSrc *appsrc, GstClockTime duration);
|
|
|
|
GST_APP_API
|
|
GstClockTime gst_app_src_get_duration (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_stream_type (GstAppSrc *appsrc, GstAppStreamType type);
|
|
|
|
GST_APP_API
|
|
GstAppStreamType gst_app_src_get_stream_type (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_max_bytes (GstAppSrc *appsrc, guint64 max);
|
|
|
|
GST_APP_API
|
|
guint64 gst_app_src_get_max_bytes (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
guint64 gst_app_src_get_current_level_bytes (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_max_buffers (GstAppSrc *appsrc, guint64 max);
|
|
|
|
GST_APP_API
|
|
guint64 gst_app_src_get_max_buffers (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
guint64 gst_app_src_get_current_level_buffers (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_max_time (GstAppSrc *appsrc, GstClockTime max);
|
|
|
|
GST_APP_API
|
|
GstClockTime gst_app_src_get_max_time (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
GstClockTime gst_app_src_get_current_level_time (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_leaky_type (GstAppSrc *appsrc, GstAppLeakyType leaky);
|
|
|
|
GST_APP_API
|
|
GstAppLeakyType gst_app_src_get_leaky_type (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_latency (GstAppSrc *appsrc, guint64 min, guint64 max);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_get_latency (GstAppSrc *appsrc, guint64 *min, guint64 *max);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_emit_signals (GstAppSrc *appsrc, gboolean emit);
|
|
|
|
GST_APP_API
|
|
gboolean gst_app_src_get_emit_signals (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
GstFlowReturn gst_app_src_push_buffer (GstAppSrc *appsrc, GstBuffer *buffer);
|
|
|
|
GST_APP_API
|
|
GstFlowReturn gst_app_src_push_buffer_list (GstAppSrc * appsrc, GstBufferList * buffer_list);
|
|
|
|
GST_APP_API
|
|
GstFlowReturn gst_app_src_end_of_stream (GstAppSrc *appsrc);
|
|
|
|
GST_APP_API
|
|
GstFlowReturn gst_app_src_push_sample (GstAppSrc *appsrc, GstSample *sample);
|
|
|
|
GST_APP_API
|
|
void gst_app_src_set_callbacks (GstAppSrc * appsrc,
|
|
GstAppSrcCallbacks *callbacks,
|
|
gpointer user_data,
|
|
GDestroyNotify notify);
|
|
|
|
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAppSrc, gst_object_unref)
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|