mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-25 17:50:36 +00:00
7e1371c41e
Original commit message from CVS: * gst/asfdemux/gstasfdemux.c: (gst_asf_demux_handle_seek_event), (gst_asf_demux_process_data), (gst_asf_demux_process_file), (gst_asf_demux_handle_src_query), (gst_asf_demux_change_state): * gst/asfdemux/gstasfdemux.h: Don't crash in the seek event handling code when playtime is 0, as may be the case with live streams (#386218). Implement SEEKING query so applications can query seekability without second-guessing based on whether we have a duration or not.
147 lines
4.4 KiB
C
147 lines
4.4 KiB
C
/* GStreamer
|
|
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
|
*
|
|
* 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 __ASF_DEMUX_H__
|
|
#define __ASF_DEMUX_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstadapter.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_ASF_DEMUX \
|
|
(gst_asf_demux_get_type())
|
|
#define GST_ASF_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ASF_DEMUX,GstASFDemux))
|
|
#define GST_ASF_DEMUX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ASF_DEMUX,GstASFDemuxClass))
|
|
#define GST_IS_ASF_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ASF_DEMUX))
|
|
#define GST_IS_ASF_DEMUX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ASF_DEMUX))
|
|
|
|
typedef struct _GstASFDemux GstASFDemux;
|
|
typedef struct _GstASFDemuxClass GstASFDemuxClass;
|
|
|
|
typedef struct
|
|
{
|
|
GstPad *pad;
|
|
guint16 id;
|
|
guint32 frag_offset;
|
|
guint32 sequence;
|
|
guint64 delay;
|
|
guint64 first_pts;
|
|
guint64 last_pts;
|
|
GstBuffer *payload;
|
|
|
|
gboolean need_newsegment; /* do we need to send a new-segment event? */
|
|
|
|
/* video-only */
|
|
guint64 last_buffer_timestamp; /* timestamp of last buffer sent out */
|
|
gboolean is_video;
|
|
gboolean fps_known;
|
|
GstBuffer *cache;
|
|
|
|
GstCaps *caps;
|
|
|
|
GstTagList *pending_tags;
|
|
} asf_stream_context;
|
|
|
|
typedef enum {
|
|
GST_ASF_DEMUX_STATE_HEADER,
|
|
GST_ASF_DEMUX_STATE_DATA,
|
|
GST_ASF_DEMUX_STATE_EOS
|
|
} GstAsfDemuxState;
|
|
|
|
#define GST_ASF_DEMUX_NUM_VIDEO_PADS 16
|
|
#define GST_ASF_DEMUX_NUM_AUDIO_PADS 32
|
|
#define GST_ASF_DEMUX_NUM_STREAMS 32
|
|
#define GST_ASF_DEMUX_NUM_STREAM_IDS 127
|
|
|
|
struct _GstASFDemux {
|
|
GstElement element;
|
|
|
|
GstPad *sinkpad;
|
|
|
|
GstAdapter *adapter;
|
|
GstTagList *taglist;
|
|
GstAsfDemuxState state;
|
|
|
|
/* The number of bytes needed for the next parsing unit. Set by
|
|
* parsing functions when they return ASF_FLOW_NEED_MORE_DATA.
|
|
* if not set after an ASF_FLOW_NEED_MORE_DATA, this indicates
|
|
* that we are parsing broken data and want to parse beyond an
|
|
* object or packet boundary. */
|
|
guint bytes_needed;
|
|
|
|
guint64 data_offset; /* byte offset where packets start */
|
|
guint64 data_size; /* total size of packet data in bytes */
|
|
guint64 num_packets; /* total number of data packets */
|
|
guint64 packet; /* current packet */
|
|
|
|
/* bitrates are unused at the moment */
|
|
guint32 bitrate[GST_ASF_DEMUX_NUM_STREAM_IDS];
|
|
|
|
gchar **languages;
|
|
guint num_languages;
|
|
|
|
GSList *ext_stream_props;
|
|
|
|
guint32 num_audio_streams;
|
|
guint32 num_video_streams;
|
|
guint32 num_streams;
|
|
asf_stream_context stream[GST_ASF_DEMUX_NUM_STREAMS];
|
|
|
|
guint32 packet_size; /* -1 if not fixed or not known */
|
|
guint32 timestamp; /* in milliseconds */
|
|
guint64 play_time;
|
|
|
|
guint64 preroll;
|
|
guint64 pts;
|
|
|
|
gboolean seekable;
|
|
|
|
/* expected byte offset of next buffer to be received by chain
|
|
* function. Used to calculate the current byte offset into the
|
|
* file from the adapter state and the data parser state */
|
|
gint64 next_byte_offset;
|
|
|
|
|
|
GstSegment segment; /* configured play segment */
|
|
|
|
/* Descrambler settings */
|
|
guint8 span;
|
|
guint16 ds_packet_size;
|
|
guint16 ds_chunk_size;
|
|
guint16 ds_data_size;
|
|
|
|
/* for debugging only */
|
|
gchar *objpath;
|
|
};
|
|
|
|
struct _GstASFDemuxClass {
|
|
GstElementClass parent_class;
|
|
};
|
|
|
|
GType gst_asf_demux_get_type (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __ASF_DEMUX_H__ */
|