| /* 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; |
| |
| gboolean saw_file_header; |
| }; |
| |
| 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__ */ |
