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127 lines
2.7 KiB
C++
127 lines
2.7 KiB
C++
/*
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mkvmerge -- utility for splicing together matroska files
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from component media subtypes
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r_matroska.h
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Written by Moritz Bunkus <moritz@bunkus.org>
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Distributed under the GPL
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see the file COPYING for details
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or visit http://www.gnu.org/copyleft/gpl.html
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*/
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/*!
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\file
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\version \$Id: r_matroska.h,v 1.5 2003/04/21 10:06:48 mosu Exp $
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\brief class definitions for the Matroska reader
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\author Moritz Bunkus <moritz @ bunkus.org>
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*/
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#ifndef __R_MATROSKA_H
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#define __R_MATROSKA_H
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#include <stdio.h>
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#include "common.h"
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#include "pr_generic.h"
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#include "error.h"
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#include "KaxBlock.h"
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#include "KaxCluster.h"
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#include "StdIOCallback.h"
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using namespace LIBMATROSKA_NAMESPACE;
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// default values for Matroska elements
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#define MKVD_TIMECODESCALE 1000000 // 1000000 = 1ms
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typedef struct {
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u_int32_t tnum;
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char *codec_id;
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int ms_compat;
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char type; // 'v' = video, 'a' = audio, 't' = text subs
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// Parameters for video tracks
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u_int32_t v_width, v_height;
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float v_frate;
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char v_fourcc[5];
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// Parameters for audio tracks
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u_int32_t a_channels, a_bps;
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float a_sfreq;
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u_int16_t a_formattag;
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void *private_data;
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unsigned int private_size;
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unsigned char *headers[3];
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u_int32_t header_sizes[3];
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int64_t units_processed;
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int ok;
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generic_packetizer_c *packetizer;
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} mkv_track_t;
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typedef struct {
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unsigned char *data;
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int length;
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} buffer_t;
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class mkv_reader_c: public generic_reader_c {
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private:
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int act_wchar;
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mkv_track_t **tracks;
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int num_tracks;
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int64_t tc_scale;
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u_int32_t cluster_tc;
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StdIOCallback *in;
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EbmlStream *es;
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EbmlElement *saved_l1, *saved_l2, *segment;
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KaxCluster *cluster;
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buffer_t **buffers;
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int num_buffers;
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float segment_duration, last_timecode;
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int64_t block_timecode, block_duration, block_ref1, block_ref2;
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mkv_track_t *block_track;
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public:
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mkv_reader_c(track_info_t *nti) throw (error_c);
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virtual ~mkv_reader_c();
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virtual int read();
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virtual packet_t *get_packet();
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virtual int display_priority();
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virtual void display_progress();
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static int probe_file(FILE *file, int64_t size);
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private:
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virtual int demuxing_requested(mkv_track_t *t);
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virtual int read_headers();
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virtual void create_packetizers();
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virtual mkv_track_t *new_mkv_track();
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virtual mkv_track_t *find_track_by_num(u_int32_t num, mkv_track_t *c = NULL);
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virtual void verify_tracks();
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virtual int packets_available();
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virtual void add_buffer(DataBuffer &dbuffer);
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virtual void free_buffers();
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virtual void handle_blocks();
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};
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#endif // __R_MATROSKA_H
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