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142 lines
3.6 KiB
C
142 lines
3.6 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __BUFFER_H__
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#define __BUFFER_H__
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#include <gst/gst.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define MPEG1MUX_BUFFER_QUEUED(mb) (g_list_length((mb)->timecode_list))
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#define MPEG1MUX_BUFFER_SPACE(mb) ((mb)->length)
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#define MPEG1MUX_BUFFER_DATA(mb) ((mb)->buffer)
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#define MPEG1MUX_BUFFER_TYPE(mb) ((mb)->buffer)
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#define MPEG1MUX_BUFFER_FIRST_TIMECODE(mb) (g_list_first((mb)->timecode_list)->data)
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#define BUFFER_TYPE_VIDEO 1
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#define BUFFER_TYPE_AUDIO 2
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#define FRAME_TYPE_IFRAME 1
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#define FRAME_TYPE_BFRAME 2
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#define FRAME_TYPE_PFRAME 3
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#define FRAME_TYPE_AUDIO 4
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typedef struct _Mpeg1MuxBuffer Mpeg1MuxBuffer;
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typedef struct _Mpeg1MuxTimecode Mpeg1MuxTimecode;
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typedef struct video_struc /* Informationen ueber Video Stream */
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{
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unsigned int stream_length ;
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unsigned int num_sequence ;
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unsigned int num_seq_end ;
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unsigned int num_pictures ;
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unsigned int num_groups ;
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unsigned int num_frames[4] ;
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unsigned int avg_frames[4] ;
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unsigned int horizontal_size;
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unsigned int vertical_size ;
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unsigned int aspect_ratio ;
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unsigned int picture_rate ;
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unsigned int bit_rate ;
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unsigned int comp_bit_rate ;
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unsigned int vbv_buffer_size;
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unsigned int CSPF ;
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guint64 PTS;
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guint64 DTS;
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guint64 current_PTS;
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guint64 current_DTS;
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guchar current_type;
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double secs_per_frame;
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gulong group_order, decoding_order;
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} Video_struc;
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typedef struct audio_struc /* Informationen ueber Audio Stream */
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{
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unsigned int stream_length ;
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unsigned int num_syncword ;
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unsigned int num_frames [2] ;
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unsigned int framesize ;
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unsigned int layer ;
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unsigned int protection ;
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unsigned int bit_rate ;
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unsigned int frequency ;
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unsigned int mode ;
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unsigned int mode_extension ;
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unsigned int copyright ;
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unsigned int original_copy ;
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unsigned int emphasis ;
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guint64 PTS;
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guint64 current_PTS;
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double samples_per_second;
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gulong decoding_order;
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} Audio_struc;
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struct _Mpeg1MuxTimecode {
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gulong length;
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gulong original_length;
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guchar frame_type;
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guint64 PTS;
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guint64 DTS;
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};
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struct _Mpeg1MuxBuffer {
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unsigned char *buffer;
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gulong length;
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gulong base;
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gulong scan_pos;
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gulong last_pos;
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gulong current_start;
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guchar buffer_type;
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guchar stream_id;
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gboolean new_frame;
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guint64 next_frame_time;
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union {
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Video_struc video;
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Audio_struc audio;
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} info;
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GList *timecode_list;
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GList *queued_list;
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};
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Mpeg1MuxBuffer *mpeg1mux_buffer_new(guchar type, guchar id);
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void mpeg1mux_buffer_queue(Mpeg1MuxBuffer *mb, GstBuffer *buf);
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void mpeg1mux_buffer_shrink(Mpeg1MuxBuffer *mb, gulong size);
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gulong mpeg1mux_buffer_update_queued(Mpeg1MuxBuffer *mb, guint64 scr);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __BUFFER_H__ */
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