mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-27 18:50:48 +00:00
dba14178ce
When dealing with accurate seeks, we want to return exactly the segment that was requested by the seek event, and not adjust the values. https://bugzilla.gnome.org/show_bug.cgi?id=755469
257 lines
8.3 KiB
C
257 lines
8.3 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
|
|
#ifndef __ASF_DEMUX_H__
|
|
#define __ASF_DEMUX_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstadapter.h>
|
|
#include <gst/base/gstflowcombiner.h>
|
|
|
|
#include "asfheaders.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))
|
|
|
|
GST_DEBUG_CATEGORY_EXTERN (asfdemux_dbg);
|
|
#define GST_CAT_DEFAULT asfdemux_dbg
|
|
|
|
typedef struct _GstASFDemux GstASFDemux;
|
|
typedef struct _GstASFDemuxClass GstASFDemuxClass;
|
|
typedef enum _GstASF3DMode GstASF3DMode;
|
|
|
|
typedef struct {
|
|
guint32 packet;
|
|
guint16 count;
|
|
} AsfSimpleIndexEntry;
|
|
|
|
typedef struct {
|
|
AsfPayloadExtensionID id : 16; /* extension ID; the :16 makes sure the
|
|
* struct gets packed into 4 bytes */
|
|
guint16 len; /* save this so we can skip unknown IDs */
|
|
} AsfPayloadExtension;
|
|
|
|
/**
|
|
* 3D Types for Media play
|
|
*/
|
|
enum _GstASF3DMode
|
|
{
|
|
GST_ASF_3D_NONE = 0x00,
|
|
|
|
//added, interim format - half
|
|
GST_ASF_3D_SIDE_BY_SIDE_HALF_LR = 0x01,
|
|
GST_ASF_3D_SIDE_BY_SIDE_HALF_RL = 0x02,
|
|
GST_ASF_3D_TOP_AND_BOTTOM_HALF_LR = 0x03,
|
|
GST_ASF_3D_TOP_AND_BOTTOM_HALF_RL = 0x04,
|
|
GST_ASF_3D_DUAL_STREAM = 0x0D, /**< Full format*/
|
|
};
|
|
|
|
typedef struct
|
|
{
|
|
gboolean valid; /* TRUE if structure is valid/filled */
|
|
|
|
GstClockTime start_time;
|
|
GstClockTime end_time;
|
|
GstClockTime avg_time_per_frame;
|
|
guint32 data_bitrate;
|
|
guint32 buffer_size;
|
|
guint32 intial_buf_fullness;
|
|
guint32 data_bitrate2;
|
|
guint32 buffer_size2;
|
|
guint32 intial_buf_fullness2;
|
|
guint32 max_obj_size;
|
|
guint32 flags;
|
|
guint16 lang_idx;
|
|
|
|
/* may be NULL if there are no extensions; otherwise, terminated by
|
|
* an AsfPayloadExtension record with len 0 */
|
|
AsfPayloadExtension *payload_extensions;
|
|
|
|
/* missing: stream names */
|
|
} AsfStreamExtProps;
|
|
|
|
typedef struct
|
|
{
|
|
AsfStreamType type;
|
|
|
|
gboolean active; /* if the stream has been activated (pad added) */
|
|
|
|
GstPad *pad;
|
|
guint16 id;
|
|
|
|
/* video-only */
|
|
gboolean is_video;
|
|
gboolean fps_known;
|
|
|
|
GstCaps *caps;
|
|
|
|
GstBuffer *streamheader;
|
|
|
|
GstTagList *pending_tags;
|
|
|
|
gboolean discont;
|
|
gboolean first_buffer;
|
|
|
|
/* Descrambler settings */
|
|
guint8 span;
|
|
guint16 ds_packet_size;
|
|
guint16 ds_chunk_size;
|
|
guint16 ds_data_size;
|
|
|
|
/* for new parsing code */
|
|
GArray *payloads; /* pending payloads */
|
|
|
|
/* Video stream PAR & interlacing */
|
|
guint8 par_x;
|
|
guint8 par_y;
|
|
gboolean interlaced;
|
|
|
|
/* For reverse playback */
|
|
gboolean reverse_kf_ready; /* Found complete KF payload*/
|
|
GArray *payloads_rev; /* Temp queue for storing multiple payloads of packet*/
|
|
gint kf_pos; /* KF position in payload queue. Payloads from this pos will be pushed */
|
|
|
|
/* extended stream properties (optional) */
|
|
AsfStreamExtProps ext_props;
|
|
|
|
gboolean inspect_payload;
|
|
} AsfStream;
|
|
|
|
typedef enum {
|
|
GST_ASF_DEMUX_STATE_HEADER,
|
|
GST_ASF_DEMUX_STATE_DATA,
|
|
GST_ASF_DEMUX_STATE_INDEX
|
|
} GstASFDemuxState;
|
|
|
|
#define GST_ASF_DEMUX_IS_REVERSE_PLAYBACK(seg) (seg.rate < 0.0? TRUE:FALSE)
|
|
|
|
#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;
|
|
|
|
gboolean have_group_id;
|
|
guint group_id;
|
|
|
|
GstAdapter *adapter;
|
|
GstTagList *taglist;
|
|
GstASFDemuxState state;
|
|
|
|
/* byte offset where the asf starts, which might not be zero on chained
|
|
* asfs, index_offset and data_offset already are 'offseted' by base_offset */
|
|
guint64 base_offset;
|
|
|
|
guint64 index_offset; /* byte offset where index might be, or 0 */
|
|
guint64 data_offset; /* byte offset where packets start */
|
|
guint64 data_size; /* total size of packet data in bytes, or 0 */
|
|
guint64 num_packets; /* total number of data packets, or 0 */
|
|
gint64 packet; /* current packet */
|
|
guint speed_packets; /* Known number of packets to get in one go*/
|
|
|
|
gchar **languages;
|
|
guint num_languages;
|
|
|
|
GstCaps *metadata; /* metadata, for delayed parsing; one
|
|
* structure ('stream-N') per stream */
|
|
GstStructure *global_metadata; /* metadata which isn't specific to one stream */
|
|
GSList *ext_stream_props; /* for delayed processing (buffers) */
|
|
GSList *mut_ex_streams; /* mutually exclusive streams */
|
|
|
|
guint32 num_audio_streams;
|
|
guint32 num_video_streams;
|
|
guint32 num_streams;
|
|
AsfStream stream[GST_ASF_DEMUX_NUM_STREAMS];
|
|
gboolean activated_streams;
|
|
GstFlowCombiner *flowcombiner;
|
|
|
|
/* for chained asf handling, we need to hold the old asf streams until
|
|
* we detect the new ones */
|
|
AsfStream old_stream[GST_ASF_DEMUX_NUM_STREAMS];
|
|
gboolean old_num_streams;
|
|
|
|
GstClockTime first_ts; /* smallest timestamp found */
|
|
|
|
guint32 packet_size;
|
|
guint64 play_time;
|
|
|
|
guint64 preroll;
|
|
|
|
gboolean seekable;
|
|
gboolean broadcast;
|
|
|
|
GstSegment segment; /* configured play segment */
|
|
gboolean keyunit_sync;
|
|
gboolean accurate;
|
|
|
|
gboolean need_newsegment; /* do we need to send a new-segment event? */
|
|
guint32 segment_seqnum; /* if the new segment must have this seqnum */
|
|
GstClockTime segment_ts; /* streaming; timestamp for segment start */
|
|
GstSegment in_segment; /* streaming; upstream segment info */
|
|
GstClockTime in_gap; /* streaming; upstream initial segment gap for interpolation */
|
|
gboolean segment_running; /* if we've started the current segment */
|
|
gboolean streaming; /* TRUE if we are operating chain-based */
|
|
GstClockTime latency;
|
|
|
|
/* for debugging only */
|
|
gchar *objpath;
|
|
|
|
/* simple index, if available */
|
|
GstClockTime sidx_interval; /* interval between entries in ns */
|
|
guint sidx_num_entries; /* number of index entries */
|
|
AsfSimpleIndexEntry *sidx_entries; /* packet number for each entry */
|
|
|
|
GSList *other_streams; /* remember streams that are in header but have unknown type */
|
|
|
|
/* For reverse playback */
|
|
gboolean seek_to_cur_pos; /* Search packets till we reach 'seek' time */
|
|
gboolean multiple_payloads; /* Whether packet has multiple payloads */
|
|
|
|
/* parsing 3D */
|
|
GstASF3DMode asf_3D_mode;
|
|
};
|
|
|
|
struct _GstASFDemuxClass {
|
|
GstElementClass parent_class;
|
|
};
|
|
|
|
GType gst_asf_demux_get_type (void);
|
|
|
|
AsfStream * gst_asf_demux_get_stream (GstASFDemux * demux, guint16 id);
|
|
|
|
gboolean gst_asf_demux_is_unknown_stream(GstASFDemux *demux, guint stream_num);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __ASF_DEMUX_H__ */
|