diff options
Diffstat (limited to 'gst/avi/gstavidemux.h')
| -rw-r--r-- | gst/avi/gstavidemux.h | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/gst/avi/gstavidemux.h b/gst/avi/gstavidemux.h new file mode 100644 index 0000000..174d8a8 --- /dev/null +++ b/gst/avi/gstavidemux.h @@ -0,0 +1,243 @@ +/* GStreamer + * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu> + * Copyright (C) <2006> Nokia Corporation (contact <stefan.kost@nokia.com>) + * + * 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 __GST_AVI_DEMUX_H__ +#define __GST_AVI_DEMUX_H__ + +#include <gst/gst.h> + +#include "avi-ids.h" +#include "gst/riff/riff-ids.h" +#include "gst/riff/riff-read.h" +#include <gst/base/gstadapter.h> + +#ifdef DIVX_DRM /* need to check using same define */ +#include <stdint.h> +#endif + +G_BEGIN_DECLS + +#define GST_TYPE_AVI_DEMUX \ + (gst_avi_demux_get_type ()) +#define GST_AVI_DEMUX(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_AVI_DEMUX, GstAviDemux)) +#define GST_AVI_DEMUX_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_AVI_DEMUX, GstAviDemuxClass)) +#define GST_IS_AVI_DEMUX(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_AVI_DEMUX)) +#define GST_IS_AVI_DEMUX_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_AVI_DEMUX)) + +#define GST_AVI_DEMUX_MAX_STREAMS 16 + +#define AVIDEMUX_MODIFICATION + +#define CHUNKID_TO_STREAMNR(chunkid) \ + ((((chunkid) & 0xff) - '0') * 10 + \ + (((chunkid) >> 8) & 0xff) - '0') + + +/* new index entries 24 bytes */ +typedef struct { + guint32 flags; + guint32 size; /* bytes of the data */ + guint64 offset; /* data offset in file */ + guint64 total; /* total bytes before */ +} GstAviIndexEntry; + +#ifdef AVIDEMUX_MODIFICATION +typedef struct _TrickPlayInfo TrickPlayInfo; + +struct _TrickPlayInfo { + + gint32 next_kidx; // next Key index + gint32 prev_kidx; // Previous key index + guint64 kidxs_dur_diff; // duration between two consecutive key frames + gint32 show_samples; // samples to show between two consecutive key frames + guint64 start_pos; /* trickplay start position */ +}; +#endif + +typedef struct { + /* index of this streamcontext */ + guint num; + + /* pad*/ + GstPad *pad; + gboolean exposed; + + /* stream info and headers */ + gst_riff_strh *strh; + union { + gst_riff_strf_vids *vids; + gst_riff_strf_auds *auds; + gst_riff_strf_iavs *iavs; + gpointer data; + } strf; + GstBuffer *extradata, *initdata; + gchar *name; + + /* the start/step/stop entries */ + guint start_entry; + guint step_entry; + guint stop_entry; + +#ifdef AVIDEMUX_MODIFICATION + TrickPlayInfo *trickplay_info; +#endif + + /* current index entry */ + guint current_entry; + /* position (byte, frame, time) for current_entry */ + guint current_total; + GstClockTime current_timestamp; + GstClockTime current_ts_end; + guint64 current_offset; + guint64 current_offset_end; + + GstFlowReturn last_flow; + gboolean discont; + + /* stream length */ + guint64 total_bytes; + guint32 total_blocks; + guint n_keyframes; + /* stream length according to index */ + GstClockTime idx_duration; + /* stream length according to header */ + GstClockTime hdr_duration; + /* stream length based on header/index */ + GstClockTime duration; + + /* VBR indicator */ + gboolean is_vbr; + + /* openDML support (for files >4GB) */ + gboolean superindex; + guint64 *indexes; + + /* new indexes */ + GstAviIndexEntry *index; /* array with index entries */ + guint idx_n; /* number of entries */ + guint idx_max; /* max allocated size of entries */ + + GstTagList *taglist; + + gint index_id; +} GstAviStream; + +typedef enum { + GST_AVI_DEMUX_START, + GST_AVI_DEMUX_HEADER, + GST_AVI_DEMUX_MOVI, + GST_AVI_DEMUX_SEEK, +} GstAviDemuxState; + +typedef enum { + GST_AVI_DEMUX_HEADER_TAG_LIST, + GST_AVI_DEMUX_HEADER_AVIH, + GST_AVI_DEMUX_HEADER_ELEMENTS, + GST_AVI_DEMUX_HEADER_INFO, + GST_AVI_DEMUX_HEADER_JUNK, + GST_AVI_DEMUX_HEADER_DATA +} GstAviDemuxHeaderState; + +typedef struct _GstAviDemux { + GstElement parent; + + /* pads */ + GstPad *sinkpad; + + /* AVI decoding state */ + GstAviDemuxState state; + GstAviDemuxHeaderState header_state; + guint64 offset; + gboolean abort_buffering; + + /* when we loaded the indexes */ + gboolean have_index; + /* index offset in the file */ + guint64 index_offset; + + /* streams */ + GstAviStream stream[GST_AVI_DEMUX_MAX_STREAMS]; + guint num_streams; + guint num_v_streams; + guint num_a_streams; + guint num_t_streams; /* subtitle text streams */ + + guint main_stream; /* used for seeking */ + + /* for streaming mode */ + gboolean streaming; + gboolean have_eos; + GstAdapter *adapter; + guint todrop; + + /* some stream info for length */ + gst_riff_avih *avih; + GstClockTime duration; + + /* segment in TIME */ + GstSegment segment; + gboolean segment_running; + + /* pending tags/events */ + GstEvent *seg_event; + GstEvent *close_seg_event; + GstTagList *globaltags; + gboolean got_tags; + + /* gst index support */ + GstIndex *element_index; + gint index_id; + gboolean seekable; + +#ifdef DIVX_DRM + uint8_t* drmContext; + void *divx_handle; + uint8_t* (*divx_init) (uint8_t*, int*); + int (*divx_commit) (uint8_t *); + int (*divx_decrypt_audio) (uint8_t *, uint8_t *, uint32_t); + int (*divx_prepare_video_bitstream) (uint8_t *, uint8_t * , uint32_t , uint8_t * , uint32_t * ); + int (*divx_finalize) (uint8_t *); +#endif + + guint64 first_movi_offset; + guint64 idx1_offset; /* offset in file of list/chunk after movi */ + GstEvent *seek_event; + + gboolean building_index; + guint odml_stream; + guint odml_subidx; + guint64 *odml_subidxs; + + guint64 seek_kf_offset; /* offset of the keyframe to which we want to seek */ +} GstAviDemux; + +typedef struct _GstAviDemuxClass { + GstElementClass parent_class; +} GstAviDemuxClass; + +GType gst_avi_demux_get_type (void); + +G_END_DECLS + +#endif /* __GST_AVI_DEMUX_H__ */ |