| /* GStreamer |
| * Copyright (C) 2015 Centricular Ltd |
| * @author: Edward Hervey <edward@centricular.com> |
| * @author: Jan Schmidt <jan@centricular.com> |
| * |
| * gststreams.h : Header for GstStream subsystem |
| * |
| * 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_STREAMS_H__ |
| #define __GST_STREAMS_H__ |
| |
| #include <gst/gstobject.h> |
| #include <gst/gstevent.h> |
| |
| G_BEGIN_DECLS |
| |
| #define GST_TYPE_STREAM (gst_stream_get_type ()) |
| #define GST_IS_STREAM(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_STREAM)) |
| #define GST_IS_STREAM_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_STREAM)) |
| #define GST_STREAM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_STREAM, GstStreamClass)) |
| #define GST_STREAM(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_STREAM, GstStream)) |
| #define GST_STREAM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_STREAM, GstStreamClass)) |
| #define GST_STREAM_CAST(obj) ((GstStream*)(obj)) |
| |
| /** |
| * GstStreamType: |
| * @GST_STREAM_TYPE_UNKNOWN: The stream is of unknown (unclassified) type. |
| * @GST_STREAM_TYPE_AUDIO: The stream is of audio data |
| * @GST_STREAM_TYPE_VIDEO: The stream carries video data |
| * @GST_STREAM_TYPE_CONTAINER: The stream is a muxed container type |
| * @GST_STREAM_TYPE_TEXT: The stream contains subtitle / subpicture data. |
| * |
| * #GstStreamType describes a high level classification set for |
| * flows of data in #GstStream objects. |
| * |
| * Note that this is a flag, and therefore users should not assume it |
| * will be a single value. Do not use the equality operator for checking |
| * whether a stream is of a certain type. |
| */ |
| typedef enum { |
| GST_STREAM_TYPE_UNKNOWN = 1 << 0, |
| GST_STREAM_TYPE_AUDIO = 1 << 1, |
| GST_STREAM_TYPE_VIDEO = 1 << 2, |
| GST_STREAM_TYPE_CONTAINER = 1 << 3, |
| GST_STREAM_TYPE_TEXT = 1 << 4 |
| } GstStreamType; |
| |
| |
| typedef struct _GstStream GstStream; |
| typedef struct _GstStreamClass GstStreamClass; |
| typedef struct _GstStreamPrivate GstStreamPrivate; |
| |
| /** |
| * GstStream: |
| * @stream_id: The Stream Identifier for this #GstStream |
| * |
| * A high-level object representing a single stream. It might be backed, or |
| * not, by an actual flow of data in a pipeline (#GstPad). |
| * |
| * A #GstStream does not care about data changes (such as decoding, encoding, |
| * parsing,...) as long as the underlying data flow corresponds to the same |
| * high-level flow (ex: a certain audio track). |
| * |
| * A #GstStream contains all the information pertinent to a stream, such as |
| * stream-id, tags, caps, type, ... |
| * |
| * Elements can subclass a #GstStream for internal usage (to contain information |
| * pertinent to streams of data). |
| */ |
| struct _GstStream { |
| GstObject object; |
| |
| /*< public >*/ |
| const gchar *stream_id; |
| |
| /*< private >*/ |
| GstStreamPrivate *priv; |
| |
| gpointer _gst_reserved[GST_PADDING]; |
| }; |
| |
| /** |
| * GstStreamClass: |
| * @parent_class: the parent class structure |
| * |
| * GstStream class structure |
| */ |
| struct _GstStreamClass { |
| GstObjectClass parent_class; |
| |
| /*< private >*/ |
| gpointer _gst_reserved[GST_PADDING]; |
| }; |
| |
| GType gst_stream_get_type (void); |
| |
| GstStream *gst_stream_new (const gchar *stream_id, |
| GstCaps *caps, |
| GstStreamType type, |
| GstStreamFlags flags); |
| |
| const gchar *gst_stream_get_stream_id (GstStream *stream); |
| |
| void gst_stream_set_stream_flags (GstStream *stream, GstStreamFlags flags); |
| GstStreamFlags gst_stream_get_stream_flags (GstStream *stream); |
| |
| void gst_stream_set_stream_type (GstStream *stream, GstStreamType stream_type); |
| GstStreamType gst_stream_get_stream_type (GstStream *stream); |
| |
| void gst_stream_set_tags (GstStream *stream, GstTagList *tags); |
| GstTagList *gst_stream_get_tags (GstStream *stream); |
| |
| void gst_stream_set_caps (GstStream *stream, GstCaps *caps); |
| GstCaps *gst_stream_get_caps (GstStream *stream); |
| |
| const gchar *gst_stream_type_get_name (GstStreamType stype); |
| G_END_DECLS |
| |
| #endif /* __GST_STREAMS_H__ */ |