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145 lines
3.6 KiB
C
145 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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{
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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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{
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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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{
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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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{
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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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